CN107846868A - retractable strap - Google Patents

Abstract

Retractable tapes for two or more objects and methods of use thereof are disclosed, the retractable tapes including a rewind feature for each retractable tape. The belt may be locked in place by engaging a single lever. The strap retracts whether or not the spool is locked. Each belt is retracted independently of the other belts so that a dual belt can be used to walk one subject. In some embodiments, a retractable leash for a single object includes a roll-back feature that provides and allows the leash to retract regardless of whether a brake associated with the spool is engaged.

Description

retractable strap

References to related applications

This patent application is a continuation-in-part of U.S. Patent Application 14/493,636, filed September 23, 2014, and priority and the entirety of which is hereby claimed. U.S. Patent Application 14/268,403 filed on September 4, 2013 is a continuation-in-part of U.S. Patent Application 14/018,138 filed September 4, 2013, and U.S. Patent Application 14/018,138 is a continuation-in-part of Continuation of U.S. Patent Application 13/604,566, filed April 5 (now U.S. Patent No. 8,683,960, issued April 1, 2014), all of which are entitled "Retractable Straps," each of which is incorporated by reference The entire contents of the US patent application are incorporated herein.

technical field

The present disclosure generally relates to retractable straps for a single subject or two subjects (or a pair of subjects) and methods of use thereof.

Background technique

Pet owners often enjoy walking, jogging, running, etc. with one or more pets for companionship and exercise. Often, one or more pets will need to be leashed. Existing retractable straps have a number of associated drawbacks and limitations.

Some of these deficiencies include: (1) in the case of dual leashes, the retraction mechanism is not independent for each leash, which means that the dual leash cannot be used to walk only one dog; One or more straps cannot be rolled back, retracted or rewound while the brake is engaged; and (3) none of the existing straps include multiple straps that are retracted with a rotating housing.

Thus, there is a need for a retractable strap that includes a retractable strap (wire or cord) construction that provides and allows self-winding of the associated retractable cord whether or not the brake is engaged.

There is also a need for a retractable leash with multiple stretchable straps that allows: (1) to walk a single dog without untangling the other strap(s); (2) whether the brakes are engaged or not, The plurality of stretchable straps are each independently self-winding; and (3) other features that prevent the straps from tangling when the stretchable straps are used by a person.

Accordingly, the present disclosure seeks to provide such a retractable strap arrangement and its associated method of use.

Contents of the invention

The present disclosure relates to stretchable straps and methods of using the straps. For example, the systems and methods may be used to restrain pets, children, or any other suitable entity.

An exemplary one-handed retractable strap set includes a housing, a handle assembly, first and second reels, and first and second stops. The housing includes a rear portion and a curved front portion. The front is configured with a first belt opening and a second belt opening. The handle assembly also includes a stem.

A first reel and a second reel of the strap device are rotatably connected or attached to the shaft, the first reel and the second reel rotating independently of the shaft. Each spool turns in the opposite direction to the direction the other spool is turning. The first reel and the second reel may optionally act independently of each other. Additionally, the first and second reels receive springs and include a plurality of detent notches. The strap arrangement also includes first and second brakes attached to the brake rod and positioned such that the brakes are engageable with the plurality of brake notches of the spool. The brake rod passes through the rod opening of the brake member and the brake spring and is anchored in the handlebar assembly.

The spool, shaft, brake and brake rod are fitted inside the housing. The housing is adapted to be connected or attached to the handle assembly. The curved front of the housing is configured to be able to rotate. The first belt opening and the second belt opening of the housing are optionally separated by a distance.

Each reel holds a retractable strap. For example, the retractable strap may include a base end attached to the first and second reels, and an end that is inserted through the first and second strap openings in the front of the housing.

The first and second reels are rotatable about the axis when the first and second detents are not engaged with the plurality of detent notches of the first and second reels. The first and second detents optionally engage the plurality of detent notches of the first and second spools, thereby stopping rotation of the first and second spools about the shaft. The first reel and the second reel receive springs, which may be constant force springs.

The base ends of the springs may be fixedly connected to the interior of the first and second reels so that the springs may be wound inside the first and second reels. The ends of the spring may optionally be configured to include tabs. The tabs at the end of the spring can be locked onto openings leading to the interior of the first and second reels. Additionally, the spring may be in a first position in which the first and second retractable straps are fully wound on the respective first and second reels. For example, when a force is applied that pulls the retractable band from the housing, the spring may disengage from its first position, thereby causing the spool to rotate. When the force is lost, the spring can return to its first position, thereby rewinding the stretchable band around the spool.

The first and second brake members, the first and second brake springs and the brake rod may optionally be attached to the brake plate. For example, the brake plate may include a first opening, a second opening, a third opening and a fourth opening. A stop disc may engage the rear of the brake pad. For example, the stop disc may comprise two protrusions for insertion into the first opening and the second opening of the brake plate. In addition, the stop disc plate may include a first hole and a second hole for insertion of the first plunger and the second plunger. Optionally, a plunger spring is received around the first plunger and the second plunger and is received between the stop disc plate and the brake plate.

The plunger spring is optionally in a first position in which the plunger spring is uncompressed and the stop disc plate and brake plate are separated by a maximum distance. For example, the plunger spring is adapted to coincide with the first position. The plunger spring is optionally in a second position in which the plunger spring is compressed and the stop disc plate and brake plate are spaced apart by a distance less than the maximum distance. The plunger optionally contacts the first detent and the second detent when the plunger spring is in the second position.

The lever of the exemplary one-handed retractable strap set is movable between a first position and a second position. For example, the lever may include a lever spring between the lever and the handle assembly. The rod spring may be in a first position in which the rod spring is not compressed. Additionally, the lever spring may be in a second position in which the lever spring is compressed. The lever may also include an actuator and a release cam. The rod may also include snaps.

The actuator arm may also be removably attached to the handle assembly. The actuator arm includes a base end and a distal end. The base end of the actuator arm can engage the actuator and the distal end can engage the stop disc plate. For example, the lever spring can be moved to the second position and the actuator can be engaged with the base end of the actuator arm. The tip can then engage the stop disc plate and the plunger spring can be moved toward the second position. The catch can optionally engage the base end of the actuator arm, retaining the base end of the actuator arm in a position that maintains the plunger spring in the second position. When the plunger spring is in the second position, the plunger can contact the first detent and the second detent. The first detent and the second detent may then engage one of the detent notches of the first and second spools subsequently.

The actuator is engageable when the lever spring is in the second position. When the actuator is optionally engaged, the first detent and the second detent may be locked to each spool. Thus, further pulling force will optionally not allow the stretchable band to unwind. The catch may engage the base end of the actuator arm in a position such that the plunger spring maintains the second position. The release cam can be disengaged from the engaging member. When the release cam is disengaged from the catch, the plunger spring can return to the first position. For example, disengagement of the actuator may allow free rotation of the spool. Additionally, the release of the tension in the stretchable strap may allow the stretchable strap to be rewound on the reel. When the retractable strap is rewound on the reel, the tension in the retractable strap can cause the first stop and the second stop to engage one of the plurality of stop notches of the first and second reels. Mouth joint. An exemplary one-handed retractable strap set may optionally include three or more retractable straps and corresponding constituent parts.

Another embodiment of the present disclosure is an exemplary one-hand operable retractable strap device. The exemplary one-handed retractable strap set includes a housing, a handle assembly, a reel, and a stop. The housing includes a rear portion and a curved front portion. The front is configured with a belt opening. The handle assembly also includes a stem.

The reel of the belt device is rotatably connected or attached to the shaft, and the rotation of the reel is independent of the shaft. The spool receives the spring and includes detent notches. The strap assembly also includes a brake attached to the brake rod and positioned such that the brake is engageable with the plurality of brake notches of the spool. The brake rod passes through the rod opening of the brake member and the brake spring and is anchored in the handlebar assembly.

The spool, shaft, brake and brake rod are fitted inside the housing. The housing is adapted to be connected or attached to the handle assembly. Brakes, brake springs and brake rods can optionally be attached to the brake plate. For example, the brake plate may include a first opening and a second opening. A stop disc may engage the rear of the brake pad. For example, the stop disc may comprise a protrusion for insertion into the first opening of the brake plate. Additionally, the stop disc plate may include a hole for insertion of the plunger. Optionally, a plunger spring is received around the plunger and between the stop disc plate and the brake plate.

The plunger spring is optionally in a first position in which the plunger spring is uncompressed and the stop disc plate and brake plate are separated by a maximum distance. For example, the plunger spring is adapted to coincide with the first position. The plunger spring is optionally in a second position in which the plunger spring is compressed and the stop disc plate and brake plate are separated by a distance less than the maximum distance. The plunger optionally contacts the detent when the plunger spring is in the second position.

The lever of the exemplary one-handed retractable strap set is movable between a first position and a second position. For example, the lever may include a lever spring between the lever and handle assembly. The rod spring may be in a first position in which the rod spring is not compressed. Additionally, the lever spring may be in a second position in which the lever spring is compressed. The lever may also include an actuator and a release cam.

The actuator arm is also removably attached to the handle assembly. The actuator arm includes a base end and a distal end. The base end of the actuator arm can engage the rod and the end can engage the stop disc plate. For example, the lever spring can be moved to the second position and the lever can be engaged with the base end of the actuator arm. The tip can then engage the stop disc plate and the plunger spring can be moved toward the second position. The plunger can contact the detent when the plunger spring is in the second position. The detent may then engage one of the detent notches of the spool subsequently.

The belt arrangement optionally provides a rewind feature for the spool. The actuator is engageable when the lever spring is in the second position. When the actuator is optionally engaged, the brake may lock to the spool. Thus, further pulling force will optionally not allow the stretchable band to unwind. The release cam can be disengaged from the actuator. When the release cam disengages the actuator, the lever spring can return to the first position, and the plunger spring can also return to the first position. For example, disengagement of the actuator may allow free rotation of the spool. Additionally, the release of the tension in the stretchable strap may allow the stretchable strap to be rewound on the reel. As the retractable strap is rewound on the reel, tension in the retractable strap may cause the detent to engage one of the plurality of detent notches of the reel.

Also provided are methods for walking one or more two tethered subjects. The method includes attaching a first object with a first retractable strap. Then, a second object is optionally attached with a second retractable strap. When the second object is not attached with the strap device, the user can optionally attach an object and the second retractable strap is idle. The first retractable strap and the second retractable strap are positioned through the strap opening of the rotating housing. The first retractable strap and the second retractable strap are configured to be wound on a self-winding reel. The swivel housing can rotate according to the movement of the subject to prevent tangling of the stretchable strap.

The user can optionally lock the position of the retractable strap by applying pressure to the rod. The spool is self-winding, and the retractable strap may be configured to rewind on the spool when the tension in the retractable strap is reduced. For example, the brake may optionally engage the spool and stop rotation of the spool as tension in the retractable band increases. When the user applies pressure to the rod, the user can optionally unlock the position of the retractable strap, thereby releasing the catch.

One embodiment of the present invention is a retractable strap for multiple restraint objects, comprising: a housing, wherein the housing includes a rear portion and a front portion, the front portion having a plurality of strap openings; a handle assembly, wherein the handle assembly includes a rod a plurality of spools; wherein the plurality of spools house a plurality of springs; wherein the plurality of spools are rotatably engaged with the shaft; a plurality of brakes; wherein the plurality of brakes are attached to the brake bar; A plurality of brakes is configured to engage the plurality of spools so as to prevent rotation of the spools in an unwinding direction; wherein the plurality of brakes engages the plurality of spools when force is applied to the lever; wherein the plurality of spools, shaft , a plurality of brake members and brake rods are located inside the housing; wherein the housing is connected to the handle assembly; and wherein the front portion of the housing is configured to rotate relative to the handle assembly. Preferably, the plurality of spools are rotatable about the shaft in an unwinding direction when the plurality of detents are not engaged with the plurality of spools. Preferably, the belt further comprises a plurality of belts; wherein each of the plurality of belts respectively passes through one of the plurality of belt openings; wherein the base ends of each of the plurality of belts are respectively connected to one of the plurality of reels and are approximately wound around the spool; wherein the ends of each of the plurality of straps are respectively positioned outside of one of the plurality of strap openings of the housing; and wherein the rotating front of the housing is rotated in response to movement of the plurality of straps to Prevents multiple straps from tangling while in use. Preferably, each of the plurality of reels has one of the plurality of springs; and wherein each of the plurality of springs is a constant force spring. Preferably, the plurality of springs is in the first position when the plurality of straps is substantially fully wound on each of the plurality of spools. Preferably, the plurality of spools further comprises a plurality of detent notches; wherein the plurality of detents are configured to engage with the plurality of detent notches of the plurality of spools. Preferably, at least one of the plurality of springs disengages from its first position when a tension is applied to at least one of the plurality of straps to pull the at least one strap out of the housing, thereby disengaging the plurality of At least one of the reels rotates, and wherein, when the pulling force is lost, the at least one spring returns to its first position such that the at least one pulled-out strap is rewound on the at least one reel. Preferably, the plurality of brakes, the plurality of springs and the brake rods are adapted to be attached to the brake plate; wherein the brake plate includes a plurality of openings; wherein the stop disc plate is configured to engage the brake plate and wherein the stop disc plate includes a plurality of protrusions adapted to be inserted into a plurality of openings of the brake plate; wherein the stop disc plate includes a plurality of protrusions for insertion of a plurality of plungers holes; wherein the plurality of plungers are engaged with a plurality of plunger springs adapted to be located between the stop disc plate and the brake plate; and wherein, when the plurality of plunger springs are not compressed, And when the stop disc plate and the brake plate are separated by a maximum distance, the plurality of plunger springs are located in the first position. When the plurality of plunger springs are compressed and the stop disc plate and the brake plate are separated by a distance less than the maximum distance, the plurality of plunger springs are in the second position; wherein, when the plurality of plunger springs are in the second position, A plurality of plungers contacts and engages a plurality of detents. Preferably, the lever includes a lever spring, an actuator and a release cam that allows the lever to move back and forth in a spring-loaded manner between a first position and a second position when a force is applied to the lever; wherein when the lever moves to the second position, the plurality of detents engage the plurality of notches of the plurality of spools; and wherein, when the lever is allowed to return to the first position, the lever is then moved between the first position and the second position When moving to a position (typically approximately halfway between the first position and the second position), the plurality of detents are disengaged from the plurality of notches of the plurality of spools. Preferably, the release of tension in the plurality of straps allows the plurality of straps to be rewound or rewound on the plurality of spools when the plurality of detents are engaged and when the plurality of detents are disengaged. Preferably, the straps include a divider, wherein the divider has a plurality of strap holes and prevents the plurality of straps from tangling within the housing. Preferably, multiple reels unwind and rewind independently of each other, which allows the user to allow only one dog/pet/subject to walk.

In another embodiment of a retractable strap for two restraint objects, the retractable strap includes: a housing, wherein the housing includes a rear portion and a front portion, the front portion has two strap openings; a handle assembly, wherein the handle assembly comprising a rod; wherein the rod has a first position and a second position; a first reel; a second reel; both the first reel and the second reel have a spring; wherein the first reel and the second reel are independently and in opposite directions rotatable engaged with the shaft; a first brake; a second brake; wherein the first brake and the second brake are attached to a brake rod; wherein each of the first reel and the second reel has a plurality of detent notches; wherein the plurality of detent notches are configured to engage the first detent and the second detent so as to prevent when the first detent and the second detent engage the plurality of detents When the mouth is engaged, the first reel and the second reel rotate in the unwinding direction; wherein, when force is applied to the rod to move the rod from the first position to the second position, the first detent and the second detent are in contact with the a plurality of detent notches engaged; wherein the first and second reels, the shaft, the first and second detents, and the detent rod are located inside the housing; wherein the housing is connected to the handle assembly; And wherein, the front portion of the housing is configured to rotate relative to the handle assembly. Preferably, the first and second spools are rotatable about the axis in an unwinding direction when the first and second stops are not engaged with the plurality of spools. Preferably, the strap further comprises a first strap; and a second strap; wherein the first strap and the second strap respectively pass through one of the two strap openings; wherein the base ends of the first strap and the second strap respectively connected to and generally wound around one of the first and second reels; wherein the ends of the first and second straps are respectively located outside of one of the two strap openings of the housing; wherein , when the first and second brakes are engaged and when the first and second brakes are disengaged, the release of tension in the first and second straps allows the first and second The second belt is rewound on the first reel and the second reel; and wherein the rotating front part of the housing is rotated according to the movement of the first belt and the second belt, so as to prevent the first belt and the second belt from being tangled in use . Preferably, the spring is a constant force spring; wherein the spring is in the first position when the first and second straps are substantially fully wound on the first and second reels. Preferably, at least one of the springs disengages from its first position when tension is applied to at least one of the first and second straps to pull the at least one strap out of the housing, thereby enabling the At least one of the first reel and the second reel rotates, and wherein, when the pulling force is lost, the at least one spring returns to its first position, so that the at least one pulled-out band is re-rolled on the at least one reel winding. Preferably, the first and second brake members, the spring and the brake rod are adapted to be attached to a brake plate; wherein the brake plate comprises a plurality of openings; wherein the stop disc plate is configured as engages the rear of the brake plate, and wherein the stop disc plate includes a plurality of protrusions adapted to be inserted into a plurality of openings of the brake plate; wherein the stop disc plate includes a plurality of plungers for a plurality of holes inserted; wherein the plurality of plungers are engaged with a plurality of plunger springs adapted to be located between the stop disc plate and the brake plate; and wherein, when the plurality of plunger springs The plurality of plunger springs are in the first position when uncompressed and the stop disc plate and brake plate are separated by a maximum distance. Preferably, the plurality of plunger springs are in the second position when the plurality of plunger springs are compressed and the stop disc plate and brake plate are separated by a distance less than the maximum distance; and wherein when the plurality of plunger springs are in the second position In the second position, the plurality of plungers contacts and engages the plurality of detents. Preferably, the lever includes a lever spring, an actuator and a release cam that allows the lever to move back and forth in a spring-loaded manner between a first position and a second position when a force is applied to the lever; wherein when the lever moves to the second position, the first detent and the second detent engage a plurality of notches on the first and second reels; and wherein, when the lever is allowed to return to said first position, the lever is then moved to the first position. At a position between the first position and the second position, the first stopper and the second stopper disengage from the plurality of notches of the first reel and the second reel. Preferably, the straps include a divider, wherein the divider has two strap holes and prevents multiple straps from becoming tangled within the housing.

Another embodiment of the present invention is a method for ambulatory one or more restrained subjects, the steps comprising: providing a retractable strap arrangement, wherein the retractable strap arrangement includes a first retractable strap, a second retractable strap and rotating housing; attaching a first object with a first retractable strap; attaching a second object with a second retractable strap; wherein the first retractable strap and the second retractable strap pass through the first retractable strap of the rotating housing the belt opening and the second belt opening are positioned; wherein the first retractable belt and the second retractable belt are configured to be wound on a self-winding reel; wherein the rotating housing rotates in response to movement of the first object and the second object , to prevent entanglement of the first retractable strap and the second retractable strap; by pressing the lever of the handle of the retractable strap device, the first retractable strap and the second retractable strap are locked; and wherein the first The retractable strap and the second retractable strap are configured so that regardless of whether the retractable strap device is locked, when the stretching tension on the first retractable strap and the second retractable strap disappears, the first retractable strap and the second retractable strap The stretch straps are all rewound on self-wrapping reels.

An optional embodiment of a retractable strap assembly for a single restraint subject is also provided. A strap associated with the spool may be attached to the spool, and the spool may be forced to rotate within the housing by action of an associated spring. The reel is provided with a plurality of detent notches. A pawl clearance area is provided between the detent notches. The retractable strap assembly is also provided with a detent having a detent. The pawl is configured at one end thereof to cooperate with the spool, the pawl clearance area, the detent notch and the cam surface.

In an optional embodiment, the detent is also configured to be caught by the operating button and act in cooperation with the operating button. The operating button is configured to cooperate and interactably associate with the locking button. The operation button and the lock button are configured to be held in relative positions by the housing. The operating button remains a lateral pin. A transverse pin secures the pawl in a position sufficient to straddle the spool in association with the operating button. The torsion spring is held within the operating button by a transverse pin running through its center. One end of the torsion spring is configured to abut against the inside of the operation button. The second end of the torsion spring is configured to bear against the transverse pin, which is also held by the detent. The transverse pin also helps to secure and maintain the pawl in the proper configuration associated with the detent. Thus, the torsion spring is used to urge the detent into position for interaction with the spool, pawl clearance area, detent notch and cam surface.

When the operation button is not engaged by the user, the operation button is held in a neutral position which is urged outward by the action of the spring. When the operating button is depressed by the user, the spring compresses and this compression acts to apply a force to the operating button outward relative to the housing 806 and towards the neutral position of the operating button.

The operating button is also configured to provide a bearing surface, which may take the form of an externally formed shoulder or the like. The locking button is provided with an abutment surface which is urged into contact with the support surface when the locking button is engaged by the user and which serves to hold the operating button in its lowermost position relative to the housing . This is used to keep the cartridge in a compressed configuration relative to the operating button.

Once the operating button has been depressed by user action, and as the locking button is urged into the locked configuration by further user action, the extension cams along the inner wall carrying the wall cam surface. As a result, the abutment surface is brought into contact with the support surface. The force exerted by the abutment surface against the housing and the bearing surface is capable of maintaining the locking button in its locked lowermost position of the locking button. Disengagement of the locking button by the user allows the extension to disengage from the wall cam surface, thereby forcing the locking button into its unlocked configuration. Subsequently, the user can return the operating button to the neutral position of the operating button, assisted by the action of the spring.

So constructed, the spool is urging and biased by its spring to rotate in the reverse retract mode of operation. In this orientation, the spool is allowed to turn freely as the pawl is allowed to pass through the pawl clearance area; thereafter the pawl is urged by its torsion spring to travel easily and smoothly along the cam face of the spool. As a result, the spool can function as a tape winding due to the disengagement between the pawl and the detent notch. If the restrained object moves away from the user with the detent remaining engaged and/or locked, the reel reverses in its release direction. The pawl passes through the pawl clearance area; thereafter, the pawl is forced by its torsion spring into the detent notch and re-engages the detent notch.

In a second alternative embodiment, the detent is also configured to be captured by and act cooperatively with the operating button. The operating button is configured to cooperate and interactably associate with the locking button. The operation button and the lock button are configured to be held in relative positions by the housing. The operating button is cooperatively biased by one or more compression springs and associated pawl carrier, pawl and pawl stop wedge. The pawl carrier, the pawl, and the pawl stop wedge secure the pawl in a position sufficient to straddle the spool in association with the operating button. Thus, the compression spring is used to urge the detent into position for interaction with the spool, pawl clearance area, detent notch and cam surface.

When the operating button is not engaged by the user, the operating button is held in an outwardly biased neutral position by one or more compression springs. When the operating button is depressed by the user, the spring compresses, and this compression acts to apply a force to the operating button outward relative to the housing 806 and toward the neutral position of the operating button.

The operating button is also configured to provide a bearing surface, which may take the form of an externally formed shoulder or the like. The locking button is provided with an abutment surface which is urged into contact with the support surface when the locking button is engaged by the user and which serves to hold the operating button in its lowermost position relative to the housing . This serves to keep the spring in a compressed configuration relative to the operating button.

Once the operating button has been depressed by user action, and as the locking button is urged into the locked configuration by further user action, the extension cams along the inner wall carrying the wall cam surface. As a result, the abutment surface is brought into contact with the support surface. The force exerted by the abutment surface against the housing and the support surface enables the locking button to maintain the operating button in the locked lowermost position of the operating button. Disengagement of the locking button by the user allows the extension to disengage from the wall cam surface, thereby forcing the locking button into the unlocked configuration. Subsequently, the user can return the operating button to the neutral position of the operating button, assisted by the action of the spring.

So constructed, the spool is urging and biased by its spring to rotate in the reverse retract mode of operation. In this orientation, the spool is allowed to turn freely as the pawl is allowed to pass through the pawl clearance area; thereafter the pawl is urged by its torsion spring to travel easily and smoothly along the cam face of the spool. As a result, the spool can function as a tape winding due to the disengagement between the pawl and the detent notch. If the restrained object moves away from the user with the detent remaining engaged and/or locked, the reel reverses in its release direction. The pawl passes through the pawl clearance area; thereafter, the pawl is forced by a compressed spring into the detent notch and re-engages the detent notch.

In a third alternative embodiment, the selector lever can be moved from the free wrap configuration to the wrap locked position by moving the select lever upwards with the user's thumb. The selector lever can also be moved back to a freely winding neutral position. In this embodiment, neither the free configuration nor the locked configuration require depression of the actuation button, which will also be referred to in various places below as a retract or retract button.

Regardless of whether the selector lever is currently in the free or locked position, depressing the actuation button or the retract button will transition the selector lever to the retracted position. The actuation button does not have to be depressed by the user, and the actuation button will return to the start or outermost position of the actuation button by the action of the spring. Thus, the roll-back feature of this embodiment allows the retractable strap assembly to take up any slack in the strap and will not allow the strap to unroll.

Thus, with respect to the operation of the various embodiments, when the retractable strap assembly is in its unactuated, unlocked configuration, it is possible to allow a restrained subject to roam freely, away from and closer to the user. When the user judges that it is dangerous or unfavorable to allow the object to travel further outwards, the user may depress the operating button or the actuating button; thereby, the spool is locked from further payout motion by engagement of the detent. Importantly, it should be noted that although the retractable strap assembly is locked, if the user moves towards the restrained object, or the restrained object moves toward the user, the spring-loaded reel will retract the strap And roll up the way action. If the restrained subject subsequently attempts to move away from the user while the operation button or actuation button is being depressed, the retractable strap assembly will remain in its locked configuration against this movement, having previously rolled up any amount of The tape will remain on the reel.

If the user decides to maintain the locked configuration, the user can engage the lock button or selector lever. In this configuration, as provided in more detail below, the user may release hold of the operating or actuating button and simply grasp the handle.

These and other features and advantages of implementations of the present disclosure will become more apparent to those skilled in the art from consideration of the following detailed description and accompanying drawings, which illustrate preferred and alternative embodiments of the disclosure.

Description of drawings

The drawings are exemplary embodiments. The drawings do not illustrate all embodiments. Additionally or alternatively, other implementations may be used. Details that may be obvious or unnecessary may be omitted to save space or for more effective illustration. Some embodiments may be implemented with additional constituent elements or steps and/or not all of the constituent elements or steps shown. When the same reference numeral appears in different drawings, the reference numeral represents the same or similar constituent component or step.

Figure 1 is a diagram of one embodiment of a retractable strap operable with one hand;

Figure 2 is a diagram of the housing of one embodiment of the retractable strap;

Figure 3 is a diagram of a reel of one embodiment of a retractable strap;

Figure 4 is an exploded view of a portion of one embodiment of the retractable strap;

Figure 5 is a diagram of the reel and spring of one embodiment of the retractable strap;

Figure 6 is a diagram of the constituent parts of one embodiment of the stretchable strap;

Figure 7 is a diagram of a reel of one embodiment of a retractable strap;

Figure 8 is a diagram of the brake plate, plunger and stop disc plate of one embodiment of the retractable strap;

Figure 9 is a diagram of another brake plate, plunger and stop disc plate of one embodiment of the retractable strap.

Figure 10 is a diagram of the poles and the various pole constituent parts of one embodiment of the retractable belt;

Figure 11 is a diagram of the actuator arm, stiffeners and snaps of one embodiment of the retractable strap;

Figure 12 is a diagram of one embodiment of a retractable strap operable with one hand;

Figure 13 is a cross-sectional view of one embodiment of the retractable strap at a stage in which the wrapping of the strap is locked and unlocked;

Figure 14 is a cross-sectional view of one embodiment of the retractable strap at another stage in which the wrap of the strap is locked and unlocked;

Figure 15 is a cross-sectional view of one embodiment of the retractable strap at another stage in which the wrap of the strap is locked and unlocked;

Figure 16 is a cross-sectional view of one embodiment of the retractable strap at another stage in which the wrap of the strap is locked and unlocked;

Figure 17 is a flowchart of one embodiment of a method for walking two restrained subjects using a retractable strap;

18 is a diagram of an alternative embodiment of a retractable strap assembly for a single restraint subject, depicting the retractable strap assembly with the operating button up and in a free-wrapping mode of operation, wherein whether the brake is engaged or not, The stretchable strap assemblies each provide and allow self-winding of an associated stretchable cord;

19 is a diagram of the retractable strap assembly of FIG. 18 depicting the retractable strap assembly during strap payout, with the operating button depressed, the lock button disengaged, the pawl engaged, and the reel in the resulting locked operation model;

20 is a diagram of the retractable strap assembly of FIG. 18, depicting the retractable strap assembly during strap payout, with the operating button in the locked position, the locking button engaged, the pawl engaged, and the reel in the resulting locked mode of operation ;

21 is a diagram of the retractable belt assembly of FIG. 18, depicting the retractable belt assembly during belt retraction, wherein the operating button is in the locked position, the locking button is engaged, and the pawl and reel are in the belt retracting mode of operation;

22A is a perspective view of the button, detent assembly, and torsion spring assembly of the retractable strap assembly of FIG. 18;

Figure 22B is a side end view of the spool of the button, detent assembly and torsion spring assembly of Figure 22A;

22C is a side view of the button, detent assembly and torsion spring assembly of FIG. 22A; and

22D is a cross-sectional view of the button, detent assembly, and torsion spring assembly of FIG. 22A taken along section line A-A drawn in FIG. 22B.

23 is a diagram of an alternative embodiment of a retractable strap assembly for a single restraint subject, depicting the retractable strap assembly with the operation button up and in a free-wrapping mode of operation, wherein whether the brake is engaged or not, The stretchable strap assemblies each provide and allow self-winding of an associated stretchable cord;

Figure 24 is a diagram of the retractable belt assembly of Figure 23, depicting the retractable belt assembly during belt reeling, with the operate button depressed, the lock button engaged, the pawl engaged, and the reel in the resulting locked operation model;

25 is a diagram of the retractable strap assembly of FIG. 23, depicting the retractable strap assembly during strap reeling, with the operating button in the locked position, the locking button engaged, and the pawl engaged but operating in the free reel position , the reel is in an operating mode that allows winding but unwinding is locked;

26A is a perspective view of the button, detent assembly, and compression spring assembly of the retractable strap assembly of FIG. 23;

26B is a cross-sectional view of the button, detent assembly, and compression spring assembly of FIG. 26A taken along section line A-A drawn in FIG. 26C;

26C is a bottom view of the button, detent assembly and compression spring assembly of FIG. 23. FIG.

27 is a diagram of another alternative embodiment of a retractable strap assembly for a single restraint subject, depicted in perspective view, wherein the retractable strap assembly provides and allow self-winding of the associated stretchable wire;

Figure 28 is an exploded perspective view of the retractable strap assembly of Figure 27;

29 is a side view of the retractable belt assembly of FIG. 27 depicting various operational features of the retractable belt assembly;

30 is a side cross-sectional view of the retractable strap assembly of FIG. 27, depicting the retractable strap assembly in a locked configuration;

Figure 30A is an enlarged view of a portion of the retractable strap assembly of Figure 30, further depicting the retractable strap assembly in a locked configuration;

31 is a side cross-sectional view of the retractable strap assembly of FIG. 27, depicting the retractable strap assembly in a strap rolled up, retracted, or rolled-back configuration;

31A is an enlarged view of a portion of the retractable strap assembly of FIG. 31 , further depicting the retractable strap assembly in a strap rolled up, retracted, or rolled-back configuration;

32 is a side cross-sectional view of the retractable strap assembly of FIG. 27, depicting the retractable strap assembly in a freely wound configuration; and

32A is an enlarged view of a portion of the retractable strap assembly of FIG. 32, further depicting the retractable strap assembly in a freely wound configuration.

Detailed ways

The practice of the present disclosure will now be described more fully hereinafter. Indeed, these implementations may be embodied in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will satisfy applicable legal requirements. As used in the specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. As used herein, the term "comprise" and variations thereof are used synonymously with the term "comprising" and variations thereof, and are open, non-limiting terms.

In the following detailed description of various embodiments of the invention, numerous specific details are described in order to provide a thorough understanding of various aspects of one or more embodiments of the invention. However, one or more embodiments of the invention may be practiced without some or all of these specific details. In other instances, well-known methods, procedures, and/or components have not been described in detail so as not to unnecessarily obscure aspects of the embodiments of the invention.

While a number of embodiments are disclosed, still other embodiments of the invention will become apparent to those skilled in the art from the following detailed description which shows and describes exemplary embodiments of the invention. As will be realized, the invention is capable of modifications in various obvious respects, all without departing from the spirit and scope of the invention. Accordingly, the drawings and their detailed description are to be regarded as illustrative in nature and not restrictive. In addition, reference or non-reference to specific embodiments of the invention should not be construed as limiting the scope of the invention.

In describing the several embodiments shown in the drawings, selective terminology is employed for the sake of clarity. However, the various aspects of the invention contained herein are not intended to be limited to that chosen term. It should be understood that the specific elements and aspects of the invention described herein are intended to include all alternatives and/or technical equivalents that operate in a similar manner to achieve a similar purpose, regardless of the language used to describe the specific elements or aspects. Selected term.

Pet owners often need to carry more than one leash when walking their pets, especially more than one pet. In other situations where two pets are on leash, the retractable strap often tangles as the owner walks the pets. Furthermore, when the pet owner wants to restrict the movement of one or more pets, the pet owner must lock the strap before manually pulling the strap toward him and unlocking and re-locking the strap as the tension in the strap decreases. The present disclosure provides devices and methods for a one-handed operable strap that provides a tangle-free strap and a self-winding spool. Additionally, the present disclosure provides strap arrangements that include a rewind feature, wherein one or more retractable straps automatically self-wind and/or rewind as the tension in the strap decreases, and then as the tension increases, the reel Lock in place again.

Figure 1 is a diagram of one embodiment of a retractable strap that can be operated with one hand. Figure 1 illustrates an exemplary one-hand operable retractable strap for restraining two subjects. The exemplary strap 100 includes a housing 102 and a handle assembly 112 . The housing 102 includes a rear portion 106 and a curved front portion 104 . The front portion 104 is configured with a first belt opening 108 and a second belt opening 110 .

Figure 2 is a diagram of the housing of one embodiment of the retractable strap. An exemplary housing is also shown in FIG. 2 .

Referring again to FIG. 1 , the handle assembly 112 also includes a stem 114 . Optionally, a torch holder 116 may be provided as part of the handle assembly 112 for insertion of a torch (not shown). The one-handed retractable strap set also includes a first reel 204 and a second reel 206 (shown in FIG. 6 ).

Figure 3 is a diagram of a reel of one embodiment of a retractable strap. Referring now to FIG. 3 , an exemplary reel 200 is shown. The exemplary reel 200 is also shown with a plurality of detent notches 202 .

Figure 4 is an exploded view of one embodiment of a portion of the retractable strap. Referring now to FIG. 4 , there is shown the individual components of an exemplary one-hand operable retractable strap assembly. The first spool 204 and the second spool 206 are rotatably connected or attached to the shaft 214 . The rotation of the first spool 204 and the second spool 206 is independent of the shaft 214 . Each spool 204 or 206 rotates in the opposite direction that the other spool is turning. The first reel 204 and the second reel 206 include a plurality of detent notches 202 .

Figure 5 is a diagram of the spool and spring of one embodiment of the retractable strap.

Referring now to FIG. 5 , an exemplary spring 218 is shown in the reel. The first reel 204 and the second reel 206 receive a spring 218 .

Referring again to FIG. 4 , the individual components of the one-handed retractable strap, including the first stop 208 and the second stop 210 , are shown. The belt arrangement includes a first brake 208 and a second brake 210 attached to a brake rod 212 and preferably positioned such that the brakes 208 and 210 can engage with the spools 204 and 206. A plurality of detent notches 202 engage. The brake rod 212 passes through the rod openings of the brake members 208 and 210 and the brake spring 209 and is anchored in the handle assembly 112 .

The spools 204 and 206 , shaft 214 , brakes 208 and 210 , and brake rod 212 preferably fit inside the housing 102 . Housing 102 is adapted to connect or attach to handle assembly 112 . The curved front portion 104 of the housing 102 is configured to be rotatable. The first belt opening 108 and the second belt opening 110 of the housing 102 are preferably located on opposite sides of the housing 102 and are optionally separated by a distance typically in the range of 1 inch to 4 inches.

Figure 6 is a diagram of the constituent parts of one embodiment of the stretchable belt. Referring now to FIG. 6 , various constituent components of an exemplary one-handed operable retractable strap, including exemplary retractable straps 302 and 304 , are shown. Each reel 204 and 206 can receive a retractable strap 302 and 304 . For example, the retractable straps 302 and 304 may include: a base end 306 attached to the first reel 204 and the second reel 206; and an end 308 inserted through the first strap opening 108 and the The second belt opening 110 .

Figure 7 is a diagram of a reel of one embodiment of a retractable strap. Referring to FIG. 7 , the base ends 306 of the exemplary retractable straps 302 and 304 are shown threaded over the spool and knotted. This knotting feature of the present disclosure helps ensure that the base end 306 and the retractable straps 302 and 304 remain securely attached to the reels 204 and 206 . Any securing mechanism may be used without departing from the scope of the present invention.

When the first detent 208 and the second detent 210 are not engaged with the plurality of detent notches 202 of the first spool 204 and the second spool 206 , the first spool 204 and the second spool 206 can surround the shaft 214 turn. The first detent 208 and the second detent 210 optionally engage the plurality of detent notches 202 of the first spool 204 and the second spool 206, thereby keeping the first spool 204 and the second spool 206 about the shaft 214 Ability to turn ceases.

Referring again to FIG. 5 , example reels 204 and 206 are shown having springs 218 . The first reel 204 and the second reel 206 receive springs 218, which may be constant force springs. These constant force springs 218 are wound in a direction opposite to the direction of tension of the springs 218 such that the tension is constant within the spools 204 and 206 . The base ends 222 of the springs 218 may be fixedly connected to the interior of the first spool 204 and the second spool 206 such that the springs 218 may be wound inside the first spool 204 and the second spool 206 . As shown in FIG. 5 , the end 224 of the spring 218 may optionally be configured to include a tab 220 . The tab 220 of the end 224 of the spring 218 may lock onto the opening leading to the interior of the first spool 204 and the second spool 206 . Additionally, the spring 218 may be positioned in a first position in which the first and second retractable straps 302, 304 are completely wrapped around the respective first and second reels. For example, when a force is applied that pulls the retractable straps 302 and 304 from the housing 102, the spring 218 may disengage from its first position, thereby causing the spools 204 and 206 to rotate. When the force is removed, the spring 218 can return to its first position, thereby causing the retractable straps 302 and 304 to rewind around the spools 204 and 206 .

Figure 8 is a diagram of the brake plate, plunger and stop disc plate of one embodiment of the retractable strap. Referring now to FIG. 8 , an exemplary brake plate, plunger and stop disc are shown. The first and second brake members 208 and 210 , the first and second brake springs 209 and 209 , and the brake rod 212 may optionally be attached to a brake plate 310 . For example, brake plate 310 may include a first opening 312 , a second opening 314 , a third opening 316 , and a fourth opening 318 . The stop disc 322 may engage the rear portion 320 of the brake plate 310 . For example, the stop disc 322 may include two protrusions 324 for insertion into the first opening 312 and the second opening 314 of the brake plate 310 . Additionally, the stop disc 322 may include a first hole 326 and a second hole 328 for insertion of a first plunger 330 and a second plunger 330 .

Figure 9 is a diagram of another brake plate, plunger and stop disc plate of one embodiment of the retractable strap. Referring now to FIG. 9 , an exemplary brake plate, plunger, plunger spring and stop disc are shown. Optionally, a plunger spring 402 is received around the first plunger 330 and the second plunger 330 and is received between the stop disc 322 and the brake plate 310 . The plunger spring 402 is optionally in a first position in which the plunger spring 402 is uncompressed and the stop disc 322 and the brake plate 310 are separated by a maximum distance. For example, plunger spring 402 is adapted to coincide with the first position. The plunger spring 402 is optionally in a second position in which the plunger spring 402 is compressed and the stop disc plate 322 and the brake plate 310 are spaced apart by a distance that is less than the maximum distance. The plunger 330 optionally contacts the first 208 and the second 210 when the plunger spring 402 is in the second position. Typically, the stop disc moves less than one inch (approximately 0.130 inches to 0.140 inches) from its rest position to its actuated position when the lever 114 is fully engaged. Similarly, plunger 330 preferably moves less than one inch (approximately 0.020 inches to 0.140 inches).

Figure 10 is a diagram of the rods and the individual rod constituent components of one embodiment of the stretchable belt. Referring to Figure 10, an exemplary rod is shown. The lever 114 is movable between a first position and a second position. For example, the rod 114 may include a rod spring 502 between the rod 114 and the handle assembly 112 . The rod spring 502 may be in a first position in which the rod spring 502 is compressed. The lever 114 may also include an actuator 504 and a release cam 506 . Another embodiment of the present disclosure may include one or more buttons instead of a lever. The brake is released by allowing the lever to move from the second position to the first position and then moving the lever to a position approximately halfway between the first position and the second position.

Figure 11 is a diagram of the actuator arm, stiffeners and snaps of one embodiment of the retractable strap. An exemplary actuator arm and catch are shown in FIG. 11 . The rod 114 may also include an engaging member 602 . The actuator arm 604 may also be removably attached to the handle assembly 112 . The actuator arm 604 includes a base end 606 and a distal end 608 .

Figure 12 is an exploded view of one embodiment of a retractable strap that can be operated with one hand. FIG. 12 shows that the belt preferably includes dividers 216 . As shown in FIG. 12, the divider 216 has two belt holes. Divider 216 prevents the tape wound around spools 204 and 206 from tangling within housing 102 .

13-16 illustrate an exemplary one-hand operable retractable strap assembly in various stages of locked and unlocked positions.

Figure 13 is a cross-sectional view of one embodiment of a retractable strap at one stage in which the wrap of the strap is locked and unlocked. Figure 13 shows an exemplary strap arrangement in a freely spoolable configuration.

14 is a cross-sectional view of one embodiment of a retractable strap at another stage in which the wrap of the strap is locked and unlocked. Figure 14 shows an exemplary strap assembly in a locked position.

15 is a cross-sectional view of one embodiment of a retractable strap at another stage in which the wrap of the strap is locked and unlocked. Figure 15 shows an exemplary strap arrangement in the initial stages of unlocking.

16 is a cross-sectional view of one embodiment of a retractable strap at another stage in which the wrap of the strap is locked and unlocked. Figure 16 shows an exemplary strap arrangement at a later stage of unlocking.

Referring to FIGS. 13-16 , the base end 606 of the actuator arm 604 can engage the actuator 504 and the end 608 can engage the stop disc 322 . For example, the lever spring 502 can be moved toward the second position and the actuator 504 can be engaged with the base end 606 of the actuator arm 604 . The end 608 can then engage the stop disc 322 and the plunger spring 402 can be moved toward the second position. The catch 602 can optionally engage the base end 606 of the actuator arm 604 to hold the base end 606 of the actuator arm 604 in a position that maintains the plunger spring 402 in the second position. When the plunger spring 402 is in the second position, the plunger 330 may contact the first detent 208 and the second detent 210 . Thus, the first detent 208 and the second detent 210 may subsequently engage one of the detent notches 202 of the first spool 204 and the second spool 206 .

The actuator 504 can be engaged when the lever spring 502 is in the second position. When the actuator 504 is optionally engaged, the first detent 208 and the second detent 210 may lock to the respective spools 204 and 206 . Thus, further pulling force will optionally not allow unwinding of the stretchable straps 302 and 304 . The catch 602 may engage the base end 606 of the actuator arm 604 in a position such that the plunger spring 402 maintains the second position. The release cam 506 can disengage from the engaging member 602 . When the release cam 506 disengages the catch 602, the plunger spring 402 can return to the first position. For example, disengagement of actuator 504 may allow spools 204 and 206 to rotate freely. Additionally, the release of tension in the stretchable straps 302 and 304 may allow the stretchable straps 302 and 304 to rewind on the reels 204 and 206 . When the retractable straps 302 and 304 are rewound on the reels 204 and 206, the first detent 208 and the second detent 210 can be engaged with the plurality of detent notches 202 of the first reel 204 and the second reel 206 One of the detent notches 202 engages. Typically, the detent is locked by moving the lever to the second position. The brake is unlocked by allowing the lever to return to the first position and then moving the lever to a position approximately halfway between the first position and the second position.

An exemplary one-handed retractable strap set may optionally include three or more retractable straps and corresponding constituent parts.

Another embodiment of the present disclosure includes a retractable strap device that can be operated with one hand. An exemplary one-handed retractable strap set allows the user to set or customize the strap length. The strap set may allow the restrained subject to travel a preset strap length. Once at the preset strap length, the strap assembly can be locked in place and not allow further tension on the stretchable strap to extend the stretchable strap. Self-wrapping reels allow the strap to rewind on the reel when the tension on the retractable strap is reduced. When the strap length is less than the preset length, the restrained subject can increase the tension in the stretchable strap and unwind the stretchable strap. Once the tape length reaches the preset length, the brake will engage the spool and lock the spool again at the specified length.

Another embodiment of the present disclosure includes a one-handed operable retractable strap arrangement for a single restrained subject. The one-handed operable retractable strap set for a single restrained subject may optionally include a roll-back feature for walking by a single subject. An exemplary one-handed retractable strap set includes a housing, a handle assembly, a reel, and a stop. The housing includes a rear and a front. The front is configured with a belt opening. The handle assembly also includes a stem.

The reel of the belt device is rotatably connected or attached to the shaft, and the rotation of the reel is independent of the shaft. The spool receives the spring and includes detent notches. The strap assembly also includes a brake attached to the brake rod and positioned such that the brake is engageable with the plurality of brake notches of the spool. The brake rod passes through the rod opening of the brake member and the brake spring and is anchored in the handlebar assembly.

The spool, shaft, brake and brake rod are fitted inside the housing. The housing is adapted to be connected or attached to the handle assembly. Brakes, brake springs and brake rods can optionally be attached to the brake plate. For example, the brake plate may include a first opening and a second opening. A stop disc may engage the rear of the brake pad. For example, the stop disc may comprise a protrusion for insertion into the first opening of the brake plate. Additionally, the stop disc plate may include a hole for insertion of the plunger. Optionally, a plunger spring is received around the plunger and between the stop disc plate and the brake plate.

The plunger spring is optionally in a first position in which the plunger spring is uncompressed and the stop disc plate and brake plate are separated by a maximum distance. For example, the plunger spring is adapted to coincide with the first position. The plunger spring is optionally in a second position in which the plunger spring is compressed and the stop disc plate and brake plate are separated by a distance less than the maximum distance. The plunger optionally contacts the detent when the plunger spring is in the second position.

The lever of the exemplary one-handed retractable strap set is movable between a first position and a second position. For example, the lever may include a lever spring between the lever and handle assembly. The rod spring may be in a first position in which the rod spring is not compressed. Additionally, the lever spring may be in a second position in which the lever spring is compressed. The lever may also include an actuator and a release cam. The rod may also include snaps.

The actuator arm is also removably attached to the handle assembly. The actuator arm includes a base end and a distal end. The base end of the actuator arm can engage the actuator and the distal end can engage the stop disc plate. For example, the lever spring can be moved to the second position and the actuator can be engaged with the base end of the actuator arm. The tip can then engage the stop disc plate and the plunger spring can be moved toward the second position. The catch can optionally engage the base end of the actuator arm, retaining the base end of the actuator arm in a position that maintains the plunger spring in the second position. The plunger can contact the detent when the plunger spring is in the second position. The detent may then engage an actuation notch of the plurality of detent notches of the spool.

The actuator is engageable when the lever spring is in the second position. When the actuator is optionally engaged, the brake may lock to the spool. Thus, further pulling force will optionally not allow the stretchable band to unwind. The catch may engage the base end of the actuator arm in a position such that the plunger spring maintains the second position. The release cam can be disengaged from the engaging member. When the release cam is disengaged from the catch, the plunger spring can return to the first position. For example, disengagement of the actuator may allow free rotation of the spool. Additionally, the release of the tension in the stretchable strap may allow the stretchable strap to be rewound on the reel. As the retractable strap is rewound on the reel, tension in the retractable strap may cause the detent to engage one of the plurality of detent notches of the reel.

A method for walking two tethered objects is also provided. Exemplary methods are illustrated in Figures 13-16.

17 is a flowchart of one embodiment of a method for walking two restrained subjects using a retractable strap. A flowchart of an exemplary method for walking two tethered subjects is also provided in FIG. 17 . The method includes attaching a first object with a first retractable strap 302 and then attaching a second object with a second retractable strap 304 . The first retractable strap 302 and the second retractable strap 304 are positioned through the strap openings 108 and 110 of the rotating housing 102 and are configured to be wound around the self-winding reel 204 and 206 on.

Rotating housing 102 can rotate according to the movement of the subject to prevent tangling of stretchable straps 302 and 304 . A user can lock the position of the retractable straps 302 and 304 by applying pressure to the rod 114 . For example, the spools 204 and 206 are self-winding, and the retractable straps 302 and 304 are configured to rewind on the spools 204 and 206 when the tension in the retractable straps 302 and 304 is reduced. When the tension in the retractable straps 302 and 304 increases, the brake can optionally engage the reels 204 and 206 and stop the rotation of the reels 206 and 206 . A user may unlock the position of the retractable straps 302 and 304 by applying pressure to the lever 114 , thereby releasing the catch 602 .

Turning now to FIGS. 18-22 , an alternative embodiment of a retractable strap assembly for a single restraint subject is shown. It can be seen that the retractable strap assembly 800 for a single restraint subject is similar in operation to those disclosed in the embodiments depicted in FIGS. 1-17 ; and, most specifically, regardless of the associated manufacturing Whether or not the movable member is engaged, these aspects provide and allow self-winding of the retractable cord associated with the spool. Like the embodiment depicted in FIGS. 1-17 , the retractable strap assembly 800 for a single restraint subject is intended to be operated with a single hand by its user. Accordingly, a user can hold the retractable strap assembly 800 at the handle H. As shown in FIG. Of course, handle H may take various forms, including but not limited to the form depicted in this disclosure.

A strap 802 (also known in the art as a thread or rope) associated with the reel 804 may be attached to the reel 804 in a manner similar to that detailed above with reference to FIG. 7 . Furthermore, as already explained above in detail with reference to FIG. 5 , the spool 804 may be forced to rotate within the housing 806 by the action of an associated spring 218 . Movement of the strap 802 may be constrained using details of construction and stop components known in the art such that a fixed length is maintained on the exterior of the housing 806 . Furthermore, the strap 802 may be constrained by the housing 806 and associated constituent parts and details of construction known in the art such that the strap 802 unwinds and retracts smoothly during operation.

Like the reel 200 depicted in FIG. 3 , the reel 804 is provided with a plurality of detent notches 808 . A pawl clearance area 810 is provided between the detent notches 808, the purpose of which will be explained in more detail below.

The retractable strap assembly 800 is also provided with a detent 812 having a detent 814 . The pawl 814 is configured at one end thereof to cooperate with the spool 804 , the pawl clearance region 810 , the detent notch 808 and the cam surface 816 .

The detent 812 is also configured to be captured by and act cooperatively with the operating button 818 . The operation button 818 is configured to cooperate and interactably associate with the lock button 820 . The operation button 818 and the lock button 820 are configured to be held in relative positions by the housing 806 .

As perhaps best seen with reference to FIGS. 22A-22D , the operating button 818 holds a transverse pin 822 . A transverse pin 822 in association with the operating button 818 secures the pawl 814 in a position sufficient to straddle the spool 804 . A torsion spring 824 is retained within the operating button 818 by a transverse pin 822 running through its center. One end of the torsion spring 824 is configured to abut against the inside of the operation button 818 . The second end of torsion spring 824 is configured to abut against transverse pin 826 , which is also retained by detent 812 . Transverse pin 826 also helps pawl 814 to secure and maintain the configuration described above in relation to detent 812 . In this configuration, torsion spring 824 is used to urge detent 812 into contact with spool 804, pawl clearance region 810, detent notch 808, and cam surface 816, as will be more fully described below. appropriate place for interaction.

When the operation button 818 is not engaged (depressed) by the user, the operation button 818 is held in a neutral position that is urged outward by the action of the spring 828 . One end of the spring 828 abuts against the inner surface of the operating button 818 and the other end abuts against a shoulder pin 830 . When the operating button 818 is depressed by the user, the spring 828 compresses, and this compression acts to apply a force to the operating button 818 outward relative to the housing 806 and towards the neutral position of the operating button 818 .

The operating button 818 is also configured to provide a bearing surface 832, which may take the form of an externally formed shoulder or the like. The locking button 820 is provided with an abutment surface 834 which is urged into contact with the support surface 832 when the locking button 820 is engaged by the user and which is used to hold the operating button 818 on the opposite side of the operating button 818. at the lowest position of the housing 806. Of course, this serves to place the spring 828 in a compressed configuration relative to the operating button 818 .

Once the operating button 818 has been depressed by user action, and as the locking button 820 is urged into the locked configuration by further user action, the extension 836 cams along the inner wall 838 carrying the wall cam surface 840 . As a result, the abutment surface 834 is urged to come into contact with the support surface 832 . The force exerted by the abutment surface 834 against the housing 806 and the support surface 832 enables the lock button 820 to maintain the operation button 818 in the locked lowermost position of the operation button 818 . Disengagement of the lock button 820 by the user allows the extension 836 to disengage from the wall cam surface 840 thereby forcing the lock button 820 into the unlocked configuration. Subsequently, the user can return the operating button 818 to the neutral position of the operating button 818 assisted by the aforementioned action of the spring 828 .

We will now turn to those aspects of the disclosure that provide and allow self-winding of the retractable band 802 associated with the spool 804 whether or not the associated detent 812 is engaged.

As best seen with reference to FIG. 18 , the retractable strap assembly 800 is depicted with the operating button 818 in its neutral and outermost disengaged, unlocked position. In this configuration, the retractable strap assembly 800 functions in a free-winding mode of operation. In this mode of operation, the strap 802 is unwound under tension as the attached object moves away from the user. On the other hand, when the attached object moves towards the user, the strap 802 is retracted by the turning action of the spring-biased reel 804 .

As best seen with reference to FIG. 19 , FIG. 19 depicts the retractable strap assembly 800 during the strap 802 being unwound, wherein the operation button 818 is depressed by the user, but the lock button 820 has not yet been engaged by the user. In this configuration, the detent 814 of the detent 812 is forced into the detent clearance region 810 when the operating button 818 is depressed and depressed by the user, and the detent 814 engages the detent notch 808 . In this configuration, since the spool 804 cannot rotate relative to the pawl 814, the spool 804 is in the resulting locked mode of operation.

20 depicts retractable belt assembly 800 during belt 802 being unwound, with operating button 818 in the depressed position, locking button 820 engaged, pawl 814 engaged, and reel 804 in the resulting lock, all as described above. operating mode. In this configuration, the user only needs to hold the handle H to maintain the locked configuration.

As best seen with reference to FIG. 21 , retractable strap assembly 800 is depicted during strap 802 retraction operation, wherein operating button 818 is in the locked position, lock button 820 is engaged, and pawl 814 and reel 804 are in strap retracting mode. operate. With the above operational details in mind, it can now be readily observed that the spool 804 is rotated in the reverse retract mode of operation by the urging and force of the spring 218 . In this direction, since the pawl 814 of the brake 812 is allowed to pass through the pawl clearance region 810, the spool 804 is allowed to rotate freely; march on. As such, the spool 804 can function to wind the strap 802 due to the disengagement between the pawl 814 and the detent notch 808 .

If the restrained subject moves away from the user while the detent 812 remains engaged and/or locked, the spool 804 reverses in its release direction. Detent 814 of detent 812 passes through detent clearance region 810 ; thereafter, detent 814 is urged by torsion spring 824 to drop into detent notch 808 and re-engage detent notch 808 .

It will now be seen that, in operation, when the retractable strap assembly 800 is in its unactuated, unlocked configuration, such as that depicted in FIG. 18 , it is capable of allowing a restrained subject to roam freely, away from and closer to the user. When the user judges that it is dangerous or unfavorable to allow the object to travel further outward, as depicted in Figure 19, the user can depress the operating button 818; No further discharge movements are possible.

Importantly, it should be noted that although the retractable strap assembly 800 is locked, if the user moves toward the restrained object, or the restrained object moves back toward the user, as best seen with reference to FIG. The spool 804 that applies force will act in such a way that the belt 802 is retracted and rolled up. If the restrained subject subsequently attempts to move away from the user while the operation button 818 is depressed, the retractable strap assembly 800 will remain in its locked configuration to resist this movement, and any amount of strap 802 has previously been rolled up. Will remain on reel 804.

If the user decides to maintain the locked configuration, the user may engage the lock button 820 as depicted in FIG. 20 . In this configuration, and with continued reference to FIG. 21 , as already explained above, the user can release the hold on the operating button 818 and only hold the handle H as provided by the interaction of the locking button 820 with the operating button 818. .

Turning now to FIGS. 23-26 , a second alternative embodiment of a retractable strap assembly for a single restraint subject is shown. As can be seen, the retractable strap assembly 900 for a single restraint subject is similar in operation to the retractable strap assembly disclosed in those embodiments depicted in FIGS. 1-17 and 18-22; and, most specifically, These aspects provide and allow self-winding of the retractable cord associated with the spool whether or not the associated detent is engaged. Like the embodiments depicted in FIGS. 1-17 and 18-22, the retractable strap assembly 900 for a single restraint subject is intended to be operated by a single hand by its user. Accordingly, a user can hold the retractable strap assembly 900 at the handle H. As shown in FIG. Of course, handle H may take various forms, including but not limited to the form depicted in this disclosure.

A strap 802 (also known in the art as a thread or rope) associated with the reel 804 may be attached to the reel 804 in a manner similar to that detailed above with reference to FIG. 7 . Furthermore, as already explained above in detail with reference to FIG. 5 , the spool 804 may be forced to rotate within the housing 806 by the action of an associated spring 218 . Movement of the strap 802 may be constrained using details of construction and stop components known in the art such that a fixed length is maintained on the exterior of the housing 806 . Furthermore, the strap 802 may be constrained by the housing 806 and associated constituent parts and details of construction known in the art such that the strap 802 unwinds and retracts smoothly during operation.

Like the reel 200 depicted in FIG. 3 , the reel 804 is provided with a plurality of detent notches 808 . A pawl clearance area 810 is provided between the detent notches 808, the purpose of which will be explained in more detail below.

The retractable strap assembly 900 is also provided with a detent 912 having a detent 914 . Pawl 914 is configured at one end thereof to cooperate with spool 804 , pawl clearance region 810 , detent notch 808 and cam surface 816 .

The detent 812 is also configured to be captured by and act cooperatively with the operating button 918 . The operating button 918 is configured to cooperate and interactably associate with the locking button 820 . The operation button 918 and the lock button 820 are configured to be held in relative positions by the housing 806 .

As perhaps best seen with reference to FIGS. 26A-26C , the operating button 918 partially or fully retains the pawl 914 , pawl carrier 936 and pawl stop wedge 932 . The operating button 918 is cooperatively urged outwardly by one or more compression springs 928 against shoulder pins 930 . The operating button 918 also carries and is associated with a compression spring 927 for urging the pawl carrier 936 and thus the pawl stop wedge 932 and pawl 914 towards the spool 804 . It will be observed that the travel of the pawl 914 is limited at the stop position 933 ; thus, the pawl stop wedge 932 against the slot 934 maintains the operating button 918 in place. Compression spring 927 and associated pawl 914, pawl carrier 936, and pawl stop wedge 932 are used in association with operating button 918 to position pawl 914 sufficiently to straddle spool 804 and properly engage spool 804 during operation. s position. Thus, the compression spring 927 is used to urge the detent 912 into a position that interacts with the spool 804, pawl clearance region 810, detent notch 808, and cam surface 816, all as described in more detail below. proper location.

When the operation button 918 is not engaged (depressed) by the user, the operation button 918 is held in a neutral position urged outward by the action of the spring 928 . One end of the spring 928 abuts against the inner surface of the operating button 918 and the other end abuts against the shoulder pin 930 . When the operating button 918 is depressed by the user, the spring 928 compresses, and this compression acts to apply a force to the operating button 918 outward relative to the housing 806 and toward the neutral position of the operating button 918 .

Similar to the operation previously described with reference to the embodiment of FIGS. 18-22 , the operating button 918 is also configured to provide a bearing surface 832 which may take the form of an externally formed shoulder or the like. The locking button 820 is provided with an abutment surface 834 which is urged into contact with the support surface 832 when the locking button 820 is engaged by the user and which is used to hold the operating button 818 on the opposite side of the operating button 818. at the lowest position of the housing 806. Of course, this serves to place the spring 928 in a compressed configuration relative to the operating button 918 .

Once the operating button 918 has been depressed by user action, and as the locking button 820 is urged into the locked configuration by further user action, the extension 836 cams along the inner wall 838 carrying the wall cam surface 840 . As a result, the abutment surface 834 is urged to come into contact with the support surface 832 . The force exerted by the abutment surface 834 against the housing 806 and the bearing surface 832 enables the lock button 820 to maintain the operation button 818 in the locked lowermost position of the operation button 818 . Disengagement of the lock button 820 by the user allows the extension 836 to disengage from the wall cam surface 840 thereby forcing the lock button 820 into the unlocked configuration. Subsequently, the user can return the operating button 818 to the neutral position of the operating button 818 assisted by the aforementioned action of the spring 828 .

We will now turn to those aspects of the disclosure that provide and allow self-winding of the retractable band 802 associated with the spool 804 whether or not the associated detent 912 is engaged.

As best seen with reference to FIG. 23, the retractable strap assembly 800 is depicted with the operating button 918 in its neutral and outermost disengaged, unlocked position. In this configuration, the retractable strap assembly 900 functions in a free-winding mode of operation. In this mode of operation, the strap 802 is unwound under tension as the attached object moves away from the user. On the other hand, when the attached object moves towards the user, the strap 802 is retracted by the turning action of the spring-biased reel 804 .

As shown in FIG. 24 , during belt 802 rewinding (also referred to as belt retraction or belt roll-up), in which the operating button 818 is pressed by the user, the locking button 820 is engaged by the user, and the ratchet of the detent 912 The pawl 914 is forced into the pawl clearance region 810 when the operating button 918 is depressed and locked by the user, and the pawl 914 engages the detent notch 808 . In this configuration, since the spool 804 cannot rotate relative to the pawl 914, the spool 804 is in the resulting locked mode of operation.

24 depicts the retractable belt assembly 900 allowing the belt 802 to be rewound, with the operating button 918 in the depressed position, the locking button 820 engaged, the pawl 914 engaged, and the reel 804 in the resulting lock, all as described above. operating mode. In this configuration, the user need only hold the handle H to maintain the locked configuration, thereby preventing the strap 802 from being released.

As best seen with reference to FIG. 25 , retractable strap assembly 900 is depicted during strap 802 retraction operation, wherein operating button 918 is in the locked position, lock button 820 is engaged, and pawl 914 and reel 804 are in strap retracting mode. operate. With the above operational details in mind, it can now be readily observed that the spool 804 is rotated in the reverse retract mode of operation by the urging and force of the spring 218 . In this direction, the pawl 914 of the stop 912 is allowed to pass through the pawl by the action of the compression spring 927 for urging the pawl 914, the pawl carrier 936 and the pawl stop wedge 932 towards the spool 804. The pawl clearance area 810, while also allowing the pawl 914 to travel easily and smoothly along the cam surface 816, thus allowing the spool 804 to rotate freely. Thus, the spool 804 can act as a winding for the strap 802 since the pawl 914 is not always engaged with the detent notch 808 .

If the restrained subject moves away from the user while the detent 912 remains engaged and/or locked, the spool 804 reverses in its release direction. Detent 914 of detent 912 passes through detent clearance region 810 ; thereafter, detent 914 is urged by compression spring 927 to drop into detent notch 808 and re-engage detent notch 808 .

It will now be seen that, in operation, when the retractable strap assembly 900 is in its unactuated, unlocked configuration, such as that depicted in FIG. 23 , a restrained subject can be allowed to roam freely, away from and closer to the user. When the user judges that it is dangerous or unfavorable to allow the object to travel further outward, as depicted in FIG. 24 , the user may depress the operating button 818; No further discharge movements are possible.

Importantly, it should be noted that although the retractable strap assembly 900 is locked, if the user moves toward the restrained object, or the restrained object moves back toward the user, as best seen with reference to FIG. The spool 804 that applies force will act in such a way that the belt 802 is retracted and rolled up. If the restrained subject subsequently attempts to move away from the user while the operation button 918 is depressed, the retractable strap assembly 900 will remain in its locked configuration to resist this movement, and any amount of strap 802 has previously been rolled up. Will remain on reel 804.

If the user decides to maintain the locked configuration, the user may engage the lock button 820 as depicted in FIG. 24 . In this configuration, the user can release the hold on the operating button 918 and only hold the handle H, as provided by the interaction of the locking button 820 with the operating button 918 , as already explained above.

Turning now to FIGS. 27-32 , a third alternative embodiment of a retractable strap assembly for a single restraint subject is shown. It can be seen that the retractable strap assembly 1000 for a single restraint subject is similar in operation to those disclosed in the embodiments depicted in FIGS. 1-17 , 18-22 , and 23-26 ; and , most specifically, these aspects provide for and allow self-winding of the retractable cord associated with the spool whether or not the associated detent is engaged. Like the embodiments depicted in FIGS. 1-17, 18-22, and 23-26, the retractable strap assembly 1000 for a single restraint subject is intended to be operated by its user with a single hand. Accordingly, a user can hold the retractable strap assembly 1000 at the handle H. As shown in FIG. Of course, handle H may take various forms, including but not limited to the form depicted in this disclosure.

Referring to FIGS. 27-28 , a strap 1002 (also known in the art as thread or rope) associated with the reel 1004 may be attached to the reel 1004 in a manner similar to that detailed above with reference to FIG. 7 . Furthermore, as already explained above in detail with reference to FIG. 5 , the spool 1004 may be forced to rotate within the housing 1006 by the action of an associated spring 218 , the housing 1006 comprising a housing left side 1006 a and a housing right Side 1006b. Movement of the strap 1002 may be constrained using details of construction and stop components known in the art such that the strap 1002 remains a fixed length outside of the housing 1006, including, for example, a strap guide disposed and captured within the housing 1006. Leash fitting 1003a and a leash fitting 1003b attached to strap 1002 on the exterior of housing 1006 . Moreover, the strap 1002 may be constrained by the housing 1006 and associated constituent parts and details of construction known in the art such that the strap 1002 is unwound and retracted smoothly during operation.

Like the reel 200 depicted in FIG. 3 , the reel 1004 is provided with a plurality of detent notches 1008 . Between the detent notches 1008 is provided a pawl clearance region 1010, the purpose of which will be explained in more detail below.

The retractable strap assembly 1000 is also provided with a detent 1012 having a detent 1014 and a detent plate 1015 . Pawl 1014 is configured at one end thereof to cooperate with spool 1004 , pawl clearance region 1010 , detent notch 1008 and cam surface 1016 .

Detent 1012 is also configured to be captured by and cooperate with activation button 1018 . The actuation button 1018 is configured to cooperate and interactably associate with the selection lever 1020 . Actuation button 1018 and selector lever 1020 are configured to be held in relative positions by housing 1006 .

As perhaps best seen with continued reference to FIG. 28 , the selector lever 1020 is engaged within the housing 1006 via a pivot pin 1016 a that cooperatively engages the selector lever 1020 through an aperture 1022 . Pivot pin 1016a may be received within one or more suitable features formed, manufactured within or otherwise associated with housing 1006 . The end of the selector lever 1020 engages the detent 1012, between the pawls 1014, via a pawl positioning pin 1016b which cooperatively engages through a formed cam slot 1024 and into a cam groove 1024 formed in each pawl 1014. The inner hole 1026. The detent 1012 is engaged within the housing 1006 via a pivot pin 1016c which is arranged centrally through a resilient sleeve 1028 which in turn is disposed within a bore 1029 of the detent 1012 . Pivot pin 1016c may be received within one or more suitable features formed, fabricated within or otherwise associated with housing 1006 .

Turning momentarily to FIG. 29 , and in view of the above discussion, it will be noted that the relative movement of the actuation button 1018 with respect to the housing is indicated by arrow A ₁ . Optimally, the movement can be defined as linear and is initiated by the applied pressure of the user's fingers, most likely his or her thumb. Similarly, it will be noted that the relative movement of the selector lever 1020 with respect to the housing is indicated by arrow _A2 . Optimally, the motion can be defined as a curved motion and is initiated by a sliding force applied by the user's fingers (again, most likely his or her thumb).

It should be noted that the construction and operation of the actuation button 1018 may be similar in some respects to that described above with reference to the embodiments of FIGS. 18-22 and 23-26 . More specifically, actuation button 1018 is forced outwardly by one or more compression springs, such as compression spring 928 , against a shoulder pin, such as shoulder pin 930 .

The following discussion will illustrate the operation of the retractable strap assembly 1000 in several different configurations.

Turning to Figures 30 and 30A, the operation of the retractable strap assembly 1000 in the first locked configuration is shown. In this locked configuration, the selector lever 1020 moves in the direction _of arrow A3. In this configuration, the pawl locating pin 1016b is disposed within the shaped cam slot 1024 in the innermost or end position. The detent spring 1030 bears against the detent plate 1015 , helping to rotate the detent plate 1015 outwardly towards the selector lever 1020 ; thereby, pivoting the detent 1014 inwardly and into the detent notch 1008 . Thus, with the selector lever 1020 in the "up" position, the pawl 1014 is locked in the forward or inward position and the strap 1002 does not extend or retract.

Turning to FIGS. 31 and 31A , the operation of the retractable strap assembly 1000 in the second strap rolled configuration is shown. In this strip rolled configuration, the actuation button 1018 is depressed or pressed inwardly in the direction of arrow A4 _. In this configuration, the spring 928 of the actuation button 1018 is compressed. The sloped surface of the actuation button 1018 abuts against a cam surface _1020cs of the selector lever 1020, causing the selector lever 1020 to rotate to a centrally located neutral position. In this configuration, the pawl positioning pin 1016b is disposed in the formed cam groove 1024 at an intermediate position. The pawl spring 1030 bears against the pawl plate 1015 , tending to rotate the pawl plate 1015 outwardly towards the selector lever 1020 and first maintains the tip of the pawl 1014 in an inward position and within the detent notch 1008 . However, in this form, the pawl 1014 is allowed to move forward or backward with the pawl positioning pin 1016b disposed in the formed cam groove 1024 at an intermediate position. That is, although the pawl spring 1030 keeps the pawl 1014 engaged with the reel 1004, the force of the pawl spring 1030 is insufficient to exceed the force of the reel return spring 218; thus, allowing the strap 1002 to retract (also referred to herein as different described as a retracting or rewinding motion), but does not allow the strap 1002 to extend. Thus, with the actuation button 1018 depressed, the selector lever 1020 is in the "neutral" position, allowing the pawl 1014 to be moved forward or backward, and the strap 1002 to be wound on the spool 1004 .

Turning now to FIGS. 32 and 32A , the operation of the retractable strap assembly 1000 in a third free form is illustrated. _In this free form, the selection lever 1020 moves in the direction of the arrow A5. In this form, the pawl positioning pin 1016b is arranged in the formed cam groove 1024 at the outermost or base end position. The pawl piece 1015 rotates inwardly or away from the select lever 1020 and against the pawl spring 1030 for compressing the pawl spring 1030 . The pawl 1014 pivots outward and withdraws from the detent notch 1008 . Thus, with the selector lever 1020 in the "down" position, the pawl 1014 is locked in the rearward or outer position, and the strap 1002 is free to extend and retract.

In summary, by moving the selection lever 1020 upward with the user's thumb, the selection lever 1020 in the free winding configuration as shown in Fig. 32 and Fig. 32A can be moved to the winding locked position as shown in Fig. 30 and Fig. 30A. The selection lever 1020 can also be moved back to a free winding position. Neither position requires depression of the actuation button 1018, which may also be called a retract or retract button.

Regardless of whether the selector lever 1020 is currently in the free or locked position, pressing the actuation button or the retract button 1018 will transition the selector lever 1020 to the retracted position as shown in Figures 31 and 31A. The actuation button 1018 does not have to be depressed by the user, and the actuation button 1018 will return to the starting or outermost position of the actuation button 1018 by the action of the spring 928 . Thus, the roll-back feature allows the retractable strap assembly 1000 to take up any slack in the strap 1002 and will not allow the strap to unroll.

It will now be seen that, in operation, when the retractable strap assembly 1000 is in its unactuated, unlocked configuration, such as that depicted in FIG. 32 , a restrained subject can be allowed to roam freely, away from and closer to the user. When the user judges that it is dangerous or unfavorable to allow the object to travel further outward, as depicted in FIG. 31 , the user may depress the actuation button 1018; It cannot make further discharge movements.

Importantly, it should be noted that although the retractable strap assembly 1000 can be locked, if the user moves towards the restrained object, or the restrained object moves back toward the user, as best seen with reference to FIG. 31 , The spool 1004 that is urged acts in such a way that the belt 1002 is retracted and rolled up. If, after the actuation button 1018 is depressed, the restrained object subsequently attempts to move away from the user, the retractable strap assembly 1000 will remain in its locked configuration to resist this movement, and any amount of strap 1002 that has previously been rolled up will Sustained on reel 1004.

If the user decides to maintain the locked configuration, the user can move the selection lever 1020 to the wrapped locked position best seen with reference to FIG. 30 by moving the selection lever 1020 upward with the user's thumb. In this configuration, the user does not need to hold the actuation button 1018; rather, the user only needs to hold the handle H, as already explained above.

Many modifications and other embodiments of the disclosures set forth herein will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions. For example, although the use of a single spring has been described above, the astute engineer or manufacturer could substitute multiple springs with appropriate spring characteristics without departing from the scope or spirit of the disclosure provided above. Similarly, springs having variable spring forces or springs having multiple defined spring constants may be substituted without departing from the scope or spirit of the disclosure provided above. Therefore, it is to be understood that the disclosure is not to be limited to the particular embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are used herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

The foregoing description of the preferred embodiment of the invention has been presented for purposes of illustration and description. While multiple embodiments are disclosed, still other embodiments of the invention will become apparent to those skilled in the art from the foregoing detailed description, which shows and described exemplary embodiments of the invention. As will be realized, the invention is capable of modifications in various obvious respects, all without departing from the spirit and scope of the invention. Accordingly, the detailed description is to be regarded as exemplary rather than restrictive in nature. In addition, although not explicitly described, one or more embodiments of the present invention may be combined or implemented in combination with each other. Furthermore, references and non-references to specific embodiments of the invention are not to be construed as limiting the scope of the invention. It is intended that the scope of the invention be limited not by this detailed description, but by the appended claims and the equivalents of the claims.

Except as stated above, nothing that has been stated or illustrated is intended or should be construed as constituting means, steps, features, subject matter, benefits, advantages, or equivalents to the public, whether recited in the claims or not Give freely.

Claims (20)

1. A retractable strap comprising: case; a handle associated with the housing; bring; a reel operably engaging the tape, the reel being rotatably forced to urge the tape into a wound configuration; and a detent configured to engage the spool through the action of a pawl associated with a selector lever comprising a cam groove, a cam surface and a pawl plate, the The pawl piece is cooperatively associated with a spring disposed within the housing such that when the brake is engaged the reel is prevented from rotating in the unwinding direction, and when the brake is engaged the The reel is able to rotate in the winding direction. 2. The retractable strap of claim 1, wherein the reel is rotatable in the unwinding direction when the brake is not engaged with the reel. 3. The retractable strap of claim 1, wherein the reel further includes a detent notch and a detent clearance area. 4. The retractable belt of claim 1, wherein the stop further comprises two detents that are urged to engage the spool. 5. The retractable belt of claim 4, wherein the pawl is urged into engagement with the spool by cooperating with the spring. 6. The retractable belt of claim 1 , wherein the reel further includes a detent notch and a detent clearance area, and the detent further comprises a detent that, when the detent is engaged, , the pawl is forced into engagement with the spool by abutting against the detent notch. 7. The retractable belt of claim 6, wherein the spool further includes a cam surface, the pawl configured to rotate when the detent is engaged and the spool is able to rotate in a winding direction. The pawl travels along the cam surface. 8. A retractable strap comprising: a housing including a handle; a belt operatively secured to a spool located within the housing; the spool is energized rotatably within the housing to wind the belt around the spool; The spool also includes detent notches, pawl clearance areas and cam surfaces; and a detent configured to engage the spool through the action of a pawl associated with a selector lever comprising a cam groove, a cam surface and a pawl plate, the The pawl piece is cooperatively associated with a spring disposed within the housing such that when the brake is engaged the reel is prevented from rotating in the unwinding direction, and when the brake is engaged the The reel can rotate along the winding direction; an actuation button associated with the housing and configured to cooperate with the selector lever; When the detent is actuated, the detent urges the pawl into the pawl clearance region, the pawl being configured so that when the spool rotates in the unwinding direction, the pawl The detent notch is engaged and the pawl engages the cam surface when the spool is rotated in the winding direction. 9. The retractable belt of claim 8, wherein the selector lever is capable of achieving a locked state. 10. The stretchable belt according to claim 8, wherein the selection lever can realize a free winding state. 11. The retractable belt of claim 8, wherein the selector lever is capable of a coiled or retracted state. 12. The retractable belt of claim 8, wherein the actuation button further includes a sloped surface and the selector lever includes a cam surface. 13. The retractable belt of claim 12, wherein the ramped surface abuts the cam surface when the actuation button is depressed. 14. The retractable strap of claim 13, wherein the strap is capable of being rolled up when the actuation button is depressed. 15. The retractable strap of claim 8, wherein the selector lever is also capable of reaching a strap rolled up position and a free winding position. 16. A retractable strap comprising: a housing including a handle; a belt operatively secured to a spool located within the housing; the spool is energized rotatably within the housing to wind the belt around the spool; The spool also includes a plurality of detent notches, a plurality of pawl clearance areas, and a plurality of cam surfaces associated with each side of the spool; and a detent configured to engage the spool through the action of a pawl associated with a selector lever comprising a cam groove, a cam surface and a pawl plate, the The pawl piece is cooperatively associated with a spring disposed within the housing such that when the brake is engaged the reel is prevented from rotating in the unwinding direction, and when the brake is engaged the The reel can rotate along the winding direction; When the detent is actuated, the detent urges each of the pawls into the pawl clearance region on the corresponding side of the spool, the pawls being each configured to move when the spool The pawl engages the detent notch on the corresponding side of the spool when rotated in the unwinding direction, and engages the detent notch on the corresponding side of the spool when the spool is rotated in the winding direction. the cam surface; and an actuation button carrying a portion configured to engage a portion of the selector lever, thereby locking the detent when the actuation button is engaged with the selector lever, not allowing The tape is unwound while the tape is allowed to rewind. 17. The retractable belt of claim 16, wherein the actuation button further includes a sloped surface and the selector lever includes a cam surface. 18. The retractable strap of claim 17, wherein the ramped surface abuts the cam surface when the actuation button is depressed. 19. The retractable strap of claim 18, wherein the strap is capable of being rolled up when the actuation button is depressed. 20. The retractable strap of claim 19, wherein the selector lever is capable of reaching a strap rolled up position, a strap locked position, and a strap free winding position.