JPH06248834A - Detachable device - Google Patents

Abstract

PURPOSE:To make it possible to interlock simply only by inserting the front end of a chain or the other connecting body into a groove section of a device body and, at the same time, to make it possible to release such an interlocking state even from an outdoor side in case of emergency. CONSTITUTION:A groove section 16 into which the front end 21 of a connecting body 2 is inserted is provided to a frame body 11 and, at the same time, an interlocking lever 4 energized in a projected direction is provided in the groove section 16, and the interlocking lever 4 is capable of sliding lengthwise in the frame body and is capable of tuning around the axis. When the insertion or separation of the front end part 44 of the interlocking lever 4 for an interlocking hole 23 provided to the front end 21 of the connecting body 2 is made, an inclined surface 46 pushing and leading the interlocking lever 4 in the direction of the absorption is provided to front end part 44 of the interlocking lever 4. In order to rotate the interlocking lever 4 at a specific angle, a normal position returning electromagnetic actuator 6 is provided in the frame body.

Description

[Brief description of drawings]

FIG. 1 is a front view showing a usage mode of a first embodiment of an attaching / detaching device of the present invention.

FIG. 2 is an enlarged partial vertical cross-sectional view showing a connection body non-engaged state of the attachment / detachment device and an enlarged partial front view showing the connection body.

FIG. 3 is an enlarged front view of the tip of the connected body.

4 is an explanatory front view showing a transmission mechanism between a locking rod and an electromagnetic actuator as seen from a line IV-IV in FIG.

FIG. 5 is an enlarged partial vertical cross-sectional view of the attachment / detachment device of the first embodiment in which the connecting body is engaged.

FIG. 6 is an enlarged partial vertical cross-sectional view showing a releasing process of the connected body.

FIG. 7 is a schematic plan view of a locking rod drive mechanism when a solenoid is used as an electromagnetic actuator.

FIG. 8 is a control circuit diagram of a locking rod drive mechanism when a micromotor is used as an electromagnetic actuator.

FIG. 9 is a front view showing a usage mode of a second embodiment of the attachment / detachment device of the present invention.

FIG. 10 is a front view showing a usage mode of a third embodiment of the attachment / detachment device of the present invention.

[Explanation of symbols]

 D Door or Sliding Door F Fixing Member 1 Whole Attachment / Detachment Device 11 Frame 16 Groove 2 Connector 21 Tip Part 22 Base End 23 Locking Hole 4 Locking Rod 41 Auxiliary Rod 44 Tip Part 46 Inclined Surface 5 Compression Spring 6 Electromagnetic Actuator

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[Procedure amendment]

[Submission date] May 17, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

[Correction method] Change

[Correction content]

[Figure 9]

Claims (4)

[Claims] 1. A chain, connecting rod or other connecting body whose base end side is attached to a door or a sliding door or a fixing member in order to limit the opening amount of the door or the sliding door to a half-open state or to tighten the inside of the door or the sliding door. An attaching / detaching device for selectively attaching the tip of the connecting body to a fixing member or a hollow frame body fixed to a door or a sliding door is provided with a groove into which the tip of the connecting body is inserted. A locking rod that is biased in a direction projecting into the groove in a direction substantially perpendicular to the direction is provided, and the locking rod guides slidably in the longitudinal direction in the frame and rotates around the axis. When the tip end of the locking rod is engaged with or disengaged from the engaging hole provided at the tip of the connecting body, the wedge with the locking rod is movably supported. By forming an inclined surface that guides it in the direction of immersion by the action, An attachment / detachment device characterized in that an electromagnetic actuator is provided in the frame for rotating the locking rod by a predetermined angle. 2. The attachment / detachment device according to claim 1, wherein the electromagnetic actuator is a rotary solenoid. 3. The attachment / detachment device according to claim 1, wherein the electromagnetic actuator is a solenoid. 4. The attachment / detachment device according to claim 1, wherein the electromagnetic actuator is a motor. Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention limits the opening amount of a door or a sliding door to a half-opened state, or tightens the inside of the door or the sliding door so that the base end side is a door. Alternatively, the present invention relates to an improvement of an attaching / detaching device that selectively attaches a chain, a connecting rod, or the other end of a connecting body attached to a sliding door or a fixing member. [0002] This type of attachment / detachment device is used in combination with a chain or other connecting body, and the connecting body is operated only from the indoor side to limit the opening amount of the door or the like to a half-opened state, or the door. As a conventional device for performing internal locking such as a so-called door chain device used for confirming a visitor or delivering a mail, or an internal locking device that slides and locks a connecting rod, that is, a locking piece. It can be mentioned as a representative one. However, according to these conventional internal tightening type devices, the doors or doors are opened from the outside of the room in an emergency, such as when the person in the room collapses due to a sudden illness, because the locking and unscrewing is performed only from the inside of the room. There is a problem that it is not possible, and in the door chain, there is also a problem that the hanging operation for the receiving metal fitting (attaching / detaching device) having the long hole is considerably troublesome. Further, as a device for attaching and detaching a door chain, as in the invention disclosed in, for example, Japanese Patent Laid-Open No. 63-151778, a locking rod for engaging the tip of the chain is slid by a solenoid. However, according to this, even when the chain is engaged, there is a trouble that it cannot be operated unless the power is turned on by turning on the switch one by one. The attachment / detachment device of the present invention makes it possible to easily attach the tip end of the chain or other connecting body simply by inserting the groove portion of the device main body.
It was proposed for the purpose of enabling the locked state to be released from the outdoor side in an emergency. In order to achieve the above object, the present invention has a groove portion in which a distal end portion of a connecting body is inserted into a hollow frame body fixed to a fixing member or a door or a sliding door. And a locking rod urged in a direction projecting into the groove in a direction substantially perpendicular to the insertion direction of the connecting body, and the locking rod is slidably guided in the longitudinal direction in the frame body. At the same time, it is rotatably supported around the axis, and when the front end of the locking rod is engaged with or disengaged from the engagement hole provided at the front end of the connecting body. On the other hand, an inclined surface is formed by which a wedge action with the locking rod pushes and guides it in the retracted direction. On the other hand, in order to rotate the locking rod by a predetermined angle,
The feature is that an electromagnetic actuator is provided in the frame. In the attachment / detachment device of the present invention, the inclined surface of the tip end portion of the locking rod faces outward in the groove portion in the normal state when not engaged (see FIG. 2). In order to attach the connecting body to the attachment / detachment device, when the tip of the chain or other connecting body is inserted into the groove portion in the direction of arrow A in FIG. 2 with the fingers, the tip of the connecting body is the inclined surface of the locking rod. Abutting against, and by the wedge action due to the further entry of the connecting body,
The locking rod is pushed in the direction (inside) to be recessed from the groove, and the distal end of the connector is allowed to enter the inside of the groove (see FIG. 5). Here, the engagement hole at the tip of the coupling body allows the locking rod to return to its original position by the urging force of the compression spring or the like, which is referred to as fitting of the engagement hole of the coupling body and the locking rod. In the form, the connecting body and the locking rod engage with each other. Due to this engagement state, the opening of the door or the sliding door is limited to the half-opened state, or the door or the sliding door is closed in the internally tightened state. In an emergency, the switch is operated by operating the switch outside the door or the sliding door, that is, the outdoor side of the card reader, a numeric keypad, a secret code input panel, or a hidden switch outside the room to operate the electromagnetic actuator. By the operation of this electromagnetic actuator, the locking rod is rotated around the axis to change the direction of the inclined surface of the tip end so as to face inward (see FIG. 6). In this state, when the door or the sliding door is opened from the outside of the room, the chain or other connecting body is pulled toward the base end side as shown by the arrow B in FIG. 6, and the locking rod is Due to the wedge action, the inclined surface is pressed by the engaging hole portion at the tip of the connecting body, slides in the direction of withdrawing from the groove portion against the biasing force of the compression spring, etc., and automatically from the engagement with the connecting body. It will be released. Here, the door etc. can be freely opened. As the electromagnetic actuator, for example, a rotary solenoid or the like is used which can automatically return the turning position of the locking rod to the original position (the state shown in FIG. 2) after the operation. I shall. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The attachment / detachment device of the present invention will be described below in detail with reference to the embodiments shown in the drawings. 1 to 8 show a first embodiment, FIG. 9 shows a second embodiment, and FIG. 10 shows a third embodiment. Each member of the present invention is made of a metal material such as stainless steel, brass, aluminum or a tough synthetic resin material like the chain, the connecting rod and the connecting body 2 combined with the device of the present invention. Is normal. FIG. 1 showing the first embodiment is a front view of the door D or the sliding door as seen from the inside of the room. In the figure, reference numeral F is a fixing member such as a door frame, 1 is an entire attaching / detaching device fixed to the fixing member F with screws 91, 2 is a chain that functions as a so-called door chain, and 21 is a tip end portion of the chain 2. Pieces 3 are fixed to the door D with screws 92, and the base end side 2 of the chain 2
2 is a mounting piece to which 2 is mounted, 31 is a hooking projection piece integrally provided at the bottom of the mounting piece 3 when the chain is not used, 93 is a door handle, 94 is a thumb turn, and 95 is a seat plate. As shown clearly in FIG. 2, the hollow frame 11 of the entire apparatus 1 is formed in an arbitrary shape such as a cylindrical shape or a rectangular tube shape, and a flange portion 12 at the bottom thereof is fixed to a fixing member F or the like with a screw 91. To be done. Reference numeral 13 is a bottom plate fixed to the bottom of the frame body 11 with screws 14. A thick portion 15 is provided on the top of the hollow frame 11.
Is provided, and the groove portion 16 through which the engaging piece forming the tip portion 21 of the chain 2 is inserted is provided therein. The depth of the groove 16 is preferably about half the length of the engaging piece 21 in order to facilitate the operation of inserting the engaging piece 21 with fingers. The attachment / detachment device 1 in FIG. 1 is illustrated as being attached to the fixing member F so that the flange portion 12 (see FIG. 2) is parallel to the door or the sliding door D.
This is so mounted when the one with the reference D is a sliding door, and when the one with the reference D is a revolving door, depending on whether the door D opens inside or outside, the groove 16 The length direction of the chain shall be set so as to be the pulling direction of the chain 2. As shown in FIGS. 2 and 3, the engaging piece 21 which is the tip of the chain 2 is provided with an engaging hole 23 into which a later-described engaging rod 4 is detachably inserted. The engaging hole 23 may have a closed shape such as a circle or an open shape such as a notch in the front external shape. Further, the frame body 11 is provided with an engaging piece 2 of the connecting body 2.
A locking rod 4 is provided which is biased by a compression coil spring 5 or the like in a direction projecting into the groove 16 in a direction substantially perpendicular to the direction in which 1 is inserted. The locking rod 4 is slidably guided in the lengthwise direction within the frame body 11 and is supported so as to be rotatable about its axis. The locking rod 4 in the illustrated example has a circular cross section,
A small-diameter portion on the base end side is slidably fitted in a cylindrical auxiliary rod 41 with a bottom. Further, a projecting piece 42 provided on the body portion of the locking rod 4 is slidably fitted in a long hole 43 provided in the lengthwise direction of the auxiliary rod 41. The large diameter portion forming the tip end portion 44 of the locking rod 41 is fitted into the receiving hole 17 provided in the thick portion 15 of the frame 11 and penetrating the groove portion 16, and the base end portion of the auxiliary rod 41. 45 is inserted into the receiving hole 18 provided in the bottom plate 13 of the frame body 11. With such a configuration, the locking rod 4 can be slid with respect to the frame body 11, while the frame body 11 is Against the auxiliary rod 41
It can be rotated together with it. In FIGS. 2 and 4, reference numeral 19 is a support member fixed to the bottom plate 13 and rotatably supports the auxiliary rod 41. Further, at the tip end portion 44 (large diameter portion) of the locking rod 4, the tip end portion of the locking rod 4 with respect to the engaging hole 23 provided in the tip end portion 21 of the chain or the connecting body 2 is provided. It has an inclined surface 46 that guides the locking rod 4 in the retracted direction by a wedge action when the 44 is engaged or disengaged. As the urging force for urging the locking rod 4 to project into the groove portion 16, any means such as spring elasticity or magnetic force may be used. In the illustrated example, the compression coil spring 5 is wound around the locking rod 4 and both ends thereof are brought into contact with the large-diameter end portion 44 of the locking rod 4 and the distal end portion of the auxiliary rod 41, respectively. By this, a biasing force is applied to the locking rod 4. It is necessary to attach an electromagnetic actuator 6 to the locking rod 4 in the frame body 11 for rotatably displacing the direction of the inclined surface 46 of the tip end portion 44 thereof by approximately 180 degrees. As the electromagnetic actuator 6, for example,
A rotary solenoid, a linear motion solenoid, a motor or the like can be adopted, but the angular position of the locking rod 4 can be automatically returned to the original position (position of FIG. 2) after an emergency or normal operation. Such means shall be attached. It is possible to engage the chain or other connecting body 2 with the locking rod 4 by operating the electromagnetic actuator 6 only by inserting the tip 21 of the connecting body 2 into the groove portion 16 with fingers. This is because As is well known, the rotary solenoid 6 has a built-in return spring, and even if the rotary solenoid 6 is energized in an emergency and driven to the angular position shown in FIG. It returns to the normal angular position shown in FIG. As shown in FIGS. 2 and 4, the electromagnetic actuator 6 such as a rotary solenoid is, for example, a frame 11
The locking rod is fixed via an appropriate speed increasing gear mechanism 7 which is fixed to the inner bottom plate 13 and the like and is fixed to the output shaft 61 thereof and a speed increasing gear 72 fixed to the body of the auxiliary rod 41. Add rotation to 4. The speed increasing ratio of the speed increasing gear mechanism 7 is preferably set so that the rotation angle of the locking rod 4 becomes approximately 180 degrees according to the operating angle of the rotary solenoid 6. In the illustrated embodiment, the operating angle of the rotary solenoid 6 is set to about 90 degrees, and the speed increasing ratio of the speed increasing gear mechanism 7 is set to about 2. FIG. 8 shows an embodiment in which a solenoid is used as the electromagnetic actuator. In the figure, reference numeral 6 denotes a linear solenoid, and an output shaft (plunger) 61 thereof is integrally connected with a rack plate 62. On the other hand, the pinion gear 47 is coaxially mounted on the locking rod 4, and the pinion gear 47 and the rack plate 62 are engaged with each other. The compression coil spring 5 is wound around the plunger 61 between the rack plate 62 and the yoke of the solenoid 6. With the above-described structure, the pinion gear 47 and the locking rod 4 integrated with the pinion gear 47 are driven by the rack plate 62 when the solenoid 6 is energized to rotate about 180 degrees.
When the energization of the solenoid 6 is stopped, the mechanism equivalent to the mechanism shown in FIGS. 2 to 5 can be configured to return to the normal angular position shown in FIG. 8 by the elasticity of the compression coil spring 5. Further, the drive mechanism of the locking rod 4 described above may employ a motor as an electromagnetic actuator.
That is, for example, a micromotor is arranged in parallel to the locking rod 4 (not shown), and a pinion gear mounted on the output shaft of the micromotor is integrally connected to the locking rod to increase gear 72 ( (See FIG. 4). On the other hand, a switch driving member (not shown) is attached to the locking rod 4, and when the locking rod 4 is at the normal angular position shown in FIGS. 2 and 5, this switch driving member is the first control shown in FIG. The switch 81 is driven, and the second control switch 82 is driven when the switch 81 is in the operating angle position shown in FIG. FIG. 8 shows the case where the locking rod 4 is in the normal angular position. These first and second control switches 81 and 8
2 are single-pole double-throw microswitches, respectively, a movable contact piece of the first control switch 81, a normally closed contact NC,
Locking power source 83 as a DC power source and micromotor 6
Are connected in series. Similarly, the movable contact piece of the second control switch 82, the normally closed contact NC, the unlocking power source 84 having a polarity opposite to that of the locking power source 84, and the micromotor 6 are connected in series. Further, the first and second control switches 81 and 82
The normally open contacts NO and NO are connected to the terminals on the opposite side of the movable contact piece with respect to the micromotor 6. The locking power source 83 generates a predetermined voltage when the locking signal CS is supplied, and at this time, the unlocking power source 8
4 shall not operate. On the other hand, the unlocking power source 84 generates a voltage in the opposite direction to the locking power source 83 when the unlocking signal OS is supplied, and the locking power source 83 does not operate at this time. . The power supply is shown separately for locking and unlocking for the sake of simplification of the description. In reality, a single power supply is used and it is used by being switched by the changeover switch. With the above construction, when the unlocking signal OS is supplied from the normal state shown in FIG. 8 to the unlocking power source 84, the motor 6 rotates in the unlocking direction and the locking rod 4 interlocks. And rotates in the direction shown in FIG. When the locking rod 7 rotates about 180 degrees and reaches the operating angle position shown in FIG. 6, the switch driving member (not shown) drives the second control switch 82 to energize the micromotor 6. Turn off the micro motor 6
Short the both ends of and stop the motor suddenly. Signal C for locking
The same applies when S is supplied to the locking power source 83. Next, the second embodiment of FIG. 9 and the third embodiment of FIG.
Examples will be described. The second and third embodiments differ from the first embodiment in that a rod-shaped connecting rod is used as the connecting body 2 instead of the chain of the first embodiment. The connecting rod 2 in both embodiments is slidable in the lateral direction while being supported by a mounting piece 3 fixed by a screw 92 on the inside of the sliding door D which is opened and closed in the direction of arrow C. The part 21 is attached to the attachment / detachment device 1 as needed, as in the first embodiment, and the base end 22 is provided with a stopper 24. Reference numeral 25 is an operating knob fixed to the connecting rod 2, and slides in the long hole 32 in front of the mounting piece 3. The connecting rod 2 of the second embodiment is sufficiently longer than that of the third embodiment, and allows the sliding door D to open in the half-opened state when it is attached to the attaching / detaching device 1. On the other hand, the connecting rod 2 of the third embodiment acts as a locking piece and has an internal tightening function, and in the state of being attached to the attachment / detachment device 1, the sliding door D can be opened halfway while being closed. Can not. In the first to third embodiments,
The detaching device 1 is fixed to the fixing member F side such as a door frame,
An example in which the connecting body 2 is attached to the door or the sliding door D side is shown.
It goes without saying that the attachment / detachment device 1 may be mounted on the door or the sliding door D side and the connector 2 may be mounted on the fixed member F side. However, considering the electrical wiring, it may be easier to process the attachment / detachment device 1 if it is fixed to the fixing member F side. An operating means (not shown) such as a card reader, an input panel or a manual switch for operating the closing / opening of the circuit of the electromagnetic actuator 6 from the outside in an emergency is installed at any place outside the management room or the like. It may be provided in a place. It is needless to say that a manual switch or any other operating means may be provided on the indoor side in order to release the connected body 2 from the engaged state in normal times. According to the attachment / detachment device of the present invention described above, by simply inserting the tip of the chain or other connecting body into the groove of the frame, the operation can be easily performed with one touch without operating the electromagnetic actuator. Can be laid down, and also
In an emergency, the connection state of the connecting body can be easily released from the outside of the room.