JP2013244229A - Buckle with locking mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To aim to provide a buckle with locking mechanism, with strong resistance against force acting in a direction to separate a band from a buckle.SOLUTION: A buckle includes a buckle body with a base plate and a top frame facing each other and both side plates connecting them, and whose inside is band insertion space, an elastic piece mounted horizontally inside the top frame and having an engaging claw on an undersurface of its one end to be able to engage with a band engaging groove, and disengaging buttons mounted on the both side plates and to press the elastic piece from both sides. In the buckle the engagement can be disengaged by pinching the disengaging buttons with one hand fingertips and springing the elastic piece upwards. A lock button is mounted on the buckle body to be able to move up and down directions over the elastic piece. When the lock button is pressed and moved downwards, the disengaging buttons are locked and at the same time the lock button resists force acting in a direction to separate the band and the buckle.

Description

  The present invention relates to a buckle for locking a band or belt having an engagement groove, and particularly for products that require a relatively strong fastening force, such as athletic shoes, competition shoes, snowboard shoes, and protector locking belts. For the buckle.

Conventionally, a buckle is known in which an engagement groove is provided in a band (or belt), a hook of a buckle is elastically engaged with the groove, and the locked state can be released at any time.
In Japanese Patent No. 3989555 (Patent Document 1), the inventors of the present invention are an easy-to-manufacture and lightweight synthetic resin buckle that includes an opposing bottom plate, a ceiling frame, and both side plates that connect the two, and the interior is related. A buckle body which is a space for inserting a band having a mating groove, an engagement claw which is horizontally installed on the inner side of the ceiling frame and can be engaged with the engagement groove of the band on the lower surface of the one end, and the other end An operation plate having an upper surface as a pressing portion, and connecting the operation plate to two opposite sides of the ceiling frame at the intermediate point between the engaging claw and the pressing portion. A synthetic resin buckle that is freely swingable as a synthetic resin provided with a pair of hooking projections on the outer surface of the band and the ceiling frame, and the band can be pulled to the buckle body with a fingertip of one hand. Proposed buckle made.

  The synthetic resin buckle is very excellent in function and is optimal as a headband buckle for helmets, but in order to improve the operability in engagement / release of the operation plate, a connecting shaft that supports the operation plate is used. When it is thinned, when this is applied to a product that requires a relatively strong fastening force, such as athletic shoes, a strong force acts in the direction of pulling the band away from the buckle when the band and the buckle are locked. There was a possibility that the connecting shaft was damaged.

  In addition, in the patent No. 4005109 (Patent Document 2), the present inventors have a light and simple configuration as a band and buckle slide adjuster particularly suitable for use as clothing and the like, and the buckle portion is not conspicuous. As a slide adjuster having an appearance, a band and a buckle that engage with a hook-like engagement claw formed in a serrated engagement groove formed on the outer surface of the band and in which the band is accessible to the buckle but cannot be retracted. In the slide adjuster of the present invention, the buckle comprises a bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle main body having a band insertion space inside, and is horizontally installed inside the ceiling frame, and has a bottom surface at one end. And an operation plate having an engaging claw that can be engaged with the engaging groove of the band, and having the other end as a pressing portion for releasing the engagement. And the support plate is supported by a connecting shaft that connects the both side plates at an intermediate point between the engaging claw and the pressing portion, thereby allowing the operation point to swing around the intermediate point, and the outer surface of the band. The pressing portion is provided with a pair of latching projections capable of pulling the buckle and the band with the fingertips of one hand, and the latching projections with respect to the operation plate extending from the connecting shaft to the latching projections The member which provided the member which regulates that the pressing force of a perpendicular direction acts directly on a part other than is proposed in the buckle main part.

Since this slide adjuster is provided with a regulating member, there is no risk of inadvertent or sudden unlocking, but it is not necessary to unlock the pressing force that acts directly on the pressing part or the latching protrusion. It cannot be prevented.
Also, since the latching part is formed in a protruding shape, there is an operational advantage from the viewpoint of pulling the buckle and band with the fingertip of one hand, but the latching projection hits the body or other objects and causes malfunction or injury. There was a risk of causing.

Japanese Patent No. 3982955 Japanese Patent No. 4005109

  An object of the present invention is to provide a buckle with a lock mechanism having a strong resistance to a force acting in a direction of separating the band from the buckle, in addition to being lightweight and easy to manufacture.

  The buckle of the present invention is a buckle in which the engagement claw of the buckle is engaged with a serrated engagement groove formed on the outer surface of the band, and the band is accessible to the buckle but cannot be retracted in the locked state. The buckle is composed of an opposing bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle body having a band insertion space inside, and is horizontally installed inside the ceiling frame. An elastic piece having an engaging claw that can be engaged with the engaging groove, and a release button that is installed on the both side plates and presses the elastic piece from both sides, and the release button is photographed with the fingertip of one hand. In the buckle that is capable of releasing the engagement between the engagement groove and the engagement claw by repelling the elastic piece upward, a lock button that can move the upper part of the elastic piece in the vertical direction is installed on the buckle body The lock Both the release button and move downward to press the tongue is locked, wherein the lock button to resist the forces acting in the direction of separating the band and buckle.

It is preferable that the lock button is engaged with a recess provided in the elastic piece and the buckle body, thereby resisting a force acting in a direction separating the band and the buckle.
It is preferable that the lock button is movable up and down along a guide provided on the buckle body, and the lock button is engaged with a convex portion provided on the elastic piece in a state where the release button is locked.

  The buckle of the present invention is a buckle in which the engagement claw of the buckle is engaged with a serrated engagement groove formed on the outer surface of the band, and the band is accessible to the buckle but cannot be retracted in the locked state. The buckle is composed of an opposing bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle body having a band insertion space inside, and is horizontally installed inside the ceiling frame. An elastic piece having an engaging claw that can be engaged with the engaging groove, and a release button that is installed on the both side plates and presses the elastic piece from both sides, and the release button is photographed with the fingertip of one hand. Accordingly, in the buckle which is capable of releasing the engagement between the engagement groove and the engagement claw by repelling the elastic piece upward, the rotation piece whose length in one direction is longer than the length in the direction perpendicular thereto Can rotate 90 degrees on the elastic piece And a rotating operation unit is integrally formed on the rotating piece, and a shelf for receiving at least one end portion of the rotating piece in the longitudinal direction from the ceiling frame side is formed on the ceiling frame or the side plate. Thus, the release button is locked in an engaged state between the shelf and one end of the rotating piece.

In the unlocked state, it is preferable that the lock button or the rotation operation part plays a role as a latching projection that can draw the band and the buckle with a fingertip of one hand.
In a state where the release button is locked, it is preferable that the height of the lock button or the rotation operation unit is equal to or lower than the height of the buckle.

  The buckle of the present invention is a buckle in which the engagement claw of the buckle is engaged with a serrated engagement groove formed on the outer surface of the band, and the band is accessible to the buckle but cannot be retracted in the locked state. The buckle is composed of an opposing bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle body having a band insertion space inside, and is horizontally installed inside the ceiling frame. An elastic piece having an engaging claw that can be engaged with the engaging groove, and a release button that is installed on the both side plates and presses the elastic piece from both sides, and the release button is photographed with the fingertip of one hand. In the buckle, which is capable of releasing the engagement between the engagement groove and the engagement claw by repelling the elastic piece upward by the stopper, a stopper capable of moving vertically between the ceiling frame and the bottom plate is provided on the buckle body. Installed, the strike Par engagement of the band and buckle in a state that has moved to the bottom plate side, characterized in that it is an auxiliary.

The buckle of the present invention can prevent unlocking even against external pressure that acts directly on the elastic piece. In addition, this lock mechanism is effective in that the lock button or the rotating piece regulates the elastic piece from being elastic, and the strong force acting in the direction of separating the band from the buckle is effectively distributed over the entire buckle. This burden can be reduced.
Therefore, this buckle is optimally applied to products that require a relatively strong fastening force such as athletic shoes.

It is the perspective view of the buckle 10, and its top view. It is the top view which shows the engagement state of the buckle 10 and the band 30, and a longitudinal direction vertical side view. 3 is a cross-sectional view of the main part showing the operation of the buckle 10. FIG. It is the perspective view of other embodiment of the buckle 10, and its top view. It is the perspective view of further another embodiment of the buckle 10, and the principal part longitudinal cross-sectional side view which shows the operation | movement. It is the perspective view of further another embodiment of the buckle 10, and the principal part longitudinal cross-sectional side view which shows the operation | movement.

Hereinafter, embodiments of a buckle with a lock mechanism according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a buckle 10. In these drawings, the buckle 10 is a flat plate comprising a bottom plate 11, a ceiling frame 12 facing the bottom plate 11, and side plates 13 and 13 connecting the bottom plate 11 and the ceiling frame 12. The main body is constituted by the cylindrical buckle body 14. The buckle body 14 is opened as insertion holes 15 and 15 in the band sliding direction, and the inside thereof becomes an insertion space 16 of the band 30 having an engagement groove 31 described later.

  In the present embodiment, the length of the bottom plate 11 in the longitudinal direction (the sliding direction of the band) is made longer than the length of the ceiling frame 12 in the longitudinal direction, whereby the connected body of the buckle 10 (that is, an athletic shoe band or the like). The band can be easily inserted and the band can be inserted smoothly. Moreover, the same effect can be acquired also by comprising the ceiling frame 12 with a flat board.

  On the inner side of the ceiling frame 12, an elastic piece 20 of a size that fits in the ceiling frame 12 is horizontally installed. An engaging claw 21 (see the following figure) that can be engaged with the engaging groove of the band 30 protrudes from the lower surface of the one end 20 </ b> A of the elastic piece 20. By setting the elastic piece 20 at a position slightly lower than the ceiling frame 12, it is possible to prevent an inadvertent external force from being applied to the elastic piece 20.

  Release buttons 18 and 18 for pressing the elastic piece 20 from both sides are installed on the side plates 13 and 13. The end surfaces of the release buttons 18 and 18 are opposed to the opposite sides of the elastic piece 20 with an inclined surface, and the clearance between the release buttons 18 and 18 and the elastic piece 20 becomes narrower as the angle of the inclined surface approaches the bottom plate 11. (See FIG. 3). In the present embodiment, the release buttons 18 and 18 have a rectangular cross-sectional shape, but they are not necessarily rectangular.

  Recesses 17A and 17B are formed in the elastic piece 20 and the buckle body 14 of the buckle 10, respectively, and the lock button 40 is installed so as to be movable up and down along the recesses 17A and 17B. In the present embodiment, the lock button 40 has a substantially rectangular shape, but it does not have to be rectangular. Moreover, there is no special restriction | limiting in the shape of recessed part 17A, 17B, What is necessary is just the shape which the lock button 40 fits so that it may mention later.

Next, the operation of the buckle 10 will be described with reference to FIGS.
FIG. 2A is a plan view showing an engaged state of the buckle 10 and the band 30, and FIG. 2B is a longitudinal side view in the longitudinal direction.
FIG. 2 (2) shows the engagement claw 21 described above. In addition, about the member demonstrated previously, the same code | symbol is attached | subjected and the description is abbreviate | omitted (the following description is also the same).

2 (1) and 2 (2), the band 30 is inserted into the insertion space 16 of the buckle 10, and the engagement claw 21 of the buckle 10 is engaged with the engagement groove 31 formed on the outer surface of the band 30. doing. The engagement groove 31 has a sawtooth cross-sectional shape in the sliding direction, that is, a tapered surface that gradually becomes deeper in the traveling direction of the band 30 and a wall surface that rises substantially perpendicularly from the deepest position.
Reference numeral 35 denotes a latching protrusion provided on the outer surface of the band. As will be described later, the band 30 can be pulled to the buckle 10 with one hand by hooking both sides with the lock button 40.

When the band 30 enters the insertion space 16 from the insertion port 15 on the other end 20B side (left side in FIG. 2) of the elastic piece 20, the upper surface of the band 30 comes into contact with the engaging claw 21 of the elastic piece 20. Thus, the elastic piece 20 moves forward while pushing up the one end 20A, and the approach / separation position of the band 30 with respect to the buckle 10 is adjusted.
In this state, as shown in FIG. 2 (2), since the engaging claw 21 is engaged with and locked with the predetermined engaging groove 31, the band 30 can be advanced with respect to the buckle 10, but it is retracted. It is impossible.

Next, operations for retracting or pulling out the band 30 from the buckle 10 will be described with reference to FIG. 3 (1) is a cross-sectional view of the main part of the buckle. If the release buttons 18, 18 are taken with the fingertips of one hand from this state, the release buttons 18, 18 are shown in FIG. 3 (2). As a result of the elastic piece 20 being lifted along the inclined surface, the engaging claw 21 is lifted along with this, and the engaging claw 21 is disengaged from the engaging groove 31, so that the band 30 can be freely slid (FIG. 2 (3) )reference.). When the release buttons 18 and 18 are released, the release buttons 18 and 18 return to their original positions due to the elasticity of the synthetic resin. As a result, the elastic piece 20 also returns to its original horizontal state.
The end face of the elastic piece 20 is opposed to the opposite side of the release buttons 18, 18 with an inclined surface, and the angle between the inclined surface approaches the bottom plate 11 and the release buttons 18, 18 and the elastic piece 20 The same effect can be obtained even if the gap is formed so as to widen.

Next, the locking mechanism of the present invention will be described.
As described above, FIG. 2B shows the locked state of the engagement groove 31 of the band 30 and the engagement claw 21 of the buckle 10, and at this time, the lock button 40 protrudes upward from the buckle body 14. The release buttons 18 and 18 are unlocked.
Here, as shown in FIG. 1 (3), if the lock button 40 is pressed and fitted into the recesses 17A and 17B, the elastic button 20 is restricted from being released by the lock button 40. In this state, The release buttons 18, 18 do not move even when pressed. FIG. 2 (4) and FIG. 3 (3) show the lock state of the release button.
The distance between the lock button 40 and the elastic piece 20 in the locked state may be set to a length that restricts the elastic piece 20 to the extent that the engagement claw 21 does not come off the engagement groove 31.

According to the present locking mechanism, in the state where the release buttons 18 and 18 are locked, the lock button 40 is fitted into the recesses 17A and 17B provided in the elastic piece 20 and the buckle body 14, so The force acting in the direction of separating 10 can be resisted.
That is, when a strong force acts in the direction separating the band 30 and the buckle 10, the elastic piece 20 is strongly pulled in the direction of the other end 20B (left side in FIG. 1 (4)) as shown in FIG. 1 (4). The lock button 40 fitted in the concave portion 17A provided in the elastic piece 20 is also pulled in the same direction. However, the lock button 40 is also fitted in the concave portion 17B provided in the buckle body 14, so A resisting force (a force in the right direction in FIG. 1 (4)) is generated.

  According to the present embodiment, when the release buttons 18 and 18 are unlocked, the lock button 40 protrudes upward from the buckle body 14 (see FIGS. 1 (2) and 2 (2)). The lock button 40 itself functions as a latching protrusion. That is, it is possible to draw the band 30 to the buckle 10 with one hand by putting the fingertip on both the lock button 40 and the latching protrusion 35 provided on the outer surface of the band 30.

  Further, if the lock button 40 is pressed and moved downward along the recesses 17A and 17B, the height of the lock button 40 is lowered, so that the lock button 40 serving as a latching protrusion hits the body or other object and malfunctions. There is no risk of injury. In the present embodiment, in the locked state of the release buttons 18, 18, the lock button 40 is set so that the height of the lock button 40 is substantially the same as the height of the buckle body 14, but the possibility of causing a malfunction or injury is reduced. The height should be high enough.

The lock button 40 needs to have a positioning mechanism at the time of locking and releasing, but for example, a push-on push-off type locking mechanism using a known heart-shaped cam can be adopted. If this mechanism is adopted, the lock button 40 is pushed in the unlocked state when the release buttons 18 and 18 are unlocked, and the lock state can be released by further pushing the lock button 40 in this state. It becomes possible to improve the property.
There is no particular limitation on the form of the lock mechanism including such a positioning mechanism, and the mechanism may be appropriately selected in consideration of both ease of manufacture and operability.

  Although not shown, when the release buttons 18 and 18 are locked, when the lock button 40 is set so as to be pressed against the upper surface of the elastic piece 20, the engaging claw 21 positioned at one end 20 </ b> A of the elastic piece 20. Is pushed down and meshes strongly with the engagement groove 31 of the band 30, so that a stronger locking mechanism can be realized.

Another embodiment of the present invention will be described with reference to FIG.
FIG. 4A is a perspective view showing the buckle body 14 and the lock button 40 separately. The buckle body 14 is provided with guides P and P, and the lock button 40 is movable up and down along the guides P and P. FIG. Is done. Further, a convex portion Q for engaging with the lock button 40 is provided on the one end portion 20A of the elastic piece 20 when the release buttons 18 and 18 are locked.
FIG. 4B is a diagram showing a state in which the release buttons 18 are unlocked. At this time, the lock button 40 is located above the guide P. FIG. From this state, if the lock button 40 is moved downward along the guide P as shown in FIG. 4 (3), the elastic button 20 is restricted from being bulleted by the lock button 40. In the state, the release buttons 18 and 18 do not move even if pressed.
FIG. 4 (4) is a plan view showing the lock state of the release button. When a strong force acts in the direction separating the band 30 and the buckle 10 in this state, the lock button 20 is pushed by the convex portion Q and elastic. Although it is pulled in the direction of the other end 20B of the piece 20 (left side in FIG. 4 (4)), the lock button 40 is supported by the guide P provided on the buckle body 14, and therefore the force resisting the pull (FIG. 4). In (4), a rightward force) is generated.
In the present embodiment, the guide P has a rectangular shape and is provided on the buckle body 14. However, there is no particular limitation on the shape and quantity of the guide P, and the vertical movement of the lock button 20 can be reliably guided. And a shape and quantity having a force to resist the pulling.

Next, a lock mechanism using the rotating piece 50 will be described with reference to FIG.
FIG. 5A is a perspective view illustrating the rotating piece 50 separated from the buckle body 14. The rotating piece 50 has a longer length in the insertion direction of the band 30 than a length in a direction perpendicular to the band 30. It is a flat piece and is provided on the elastic piece 20 by a rotation shaft 45 so as to be rotatable by 90 degrees. If the rotation of 90 degrees is ensured, the shape of the rotating piece 50 is not particularly limited, but it is preferable to make the shape approximately the same as the elastic piece 20 in order to reduce the size of the buckle 10. Further, a rotation operation unit 52 is provided on the surface of the rotation piece 50 so as to protrude upward.

The ceiling frame 12 is formed with shelf portions 60, 60 that receive end portions 55, 55 in the longitudinal direction of the rotating piece 50 from the ceiling frame 12 side, and the shelf portions 60, 60 are formed in the longitudinal direction of the rotating piece 50. The directional end portions 55 and 55 are formed as inclined surfaces 62 and 62 so as to gradually descend until reaching the rotation position of 90 degrees. The rack parts 60 and 60 should just be a magnitude | size which can support the rotation piece 50 from the ceiling frame 12 side.
At the corners on a pair of diagonal lines of the rotating piece 50, the rotating piece 50 is rotated exactly 90 degrees by abutting against stoppers 61, 61 protruding from the shelves 60, 60 at positions corresponding thereto. Notches 53 and 53 that can be made are formed.

FIG. 5 (2) is a perspective view of the buckle 10 of the present embodiment, and FIG. 5 (3) is a longitudinal sectional side view of the main part. At this time, the rotating piece 50 is not engaged with the shelf 60 of the ceiling frame 12, and the release buttons 18 and 18 are unlocked.
Here, as shown in FIG. 5 (4), if the rotating piece 50 is manually rotated 90 degrees, both end portions 55, 55 in the longitudinal direction of the rotating piece 50 are engaged with the shelves 60, 60. In this state, the release buttons 18 and 18 do not move even if they are photographed. As a result, the elasticity of the elastic piece 20 is restricted. FIG. 5 (5) is a longitudinal sectional side view of the main part showing this locked state.

In the present embodiment, the shelf portions 60, 60 are formed as the inclined surfaces 62, 62. Therefore, if the rotating piece 50 is rotated and locked, both longitudinal ends 55, 55 of the rotating piece 50 are inclined. As a result of moving from the ceiling frame 12 side toward the bottom plate 11 along the surfaces 62, 62, the rotation operation unit 52 becomes the same height as the ceiling frame 12. Therefore, in a state where the release buttons 18 and 18 are locked, there is no possibility that the rotation operation unit 52 hits the body or other objects to cause malfunction or injury.
The height of the rotation operation unit 52 in the locked state of the release buttons 18 and 18 may be a height that can reduce the possibility of malfunction or injury.

Further, according to the present locking mechanism, when a strong force is applied in a direction in which the band 30 and the buckle 10 are separated in a state where the release buttons 18 are locked, the elastic piece 20 is strongly pulled in the direction of the other end 20B. As a result, the elastic piece 20 is repelled upward, but the rotating piece 50 provided on the elastic piece 20 is engaged with the shelves 60, 60 formed on the ceiling frame 12, so that the pulling is performed. Force to resist is generated.

Next, a mechanism for assisting the engagement between the band 30 and the buckle 10 by the stopper 70 provided on the buckle body 14 will be described with reference to FIG.
FIGS. 6A and 6B are perspective views showing how the stopper 60 moves up and down.
FIG. 6 (3) is a vertical cross-sectional side view of the main part showing the locked state of the buckle 10 and the band 30, that is, the locked state of the engaging claw 21 and the engaging groove 31. In the present embodiment, an engagement claw 71 that can engage with the engagement groove 31 of the band is provided on the lower surface of the stopper 70.
From this state, if the stopper 70 is moved to the bottom plate 11 side as shown in FIG. 6 (4) and the engagement claw 71 and the engagement groove 31 of the band are engaged, the engagement between the band 30 and the buckle 10 is achieved. Can be reinforced. That is, since the stopper 70 is provided on the buckle body 14, even if a strong force acts in the direction of separating the band 30 from the buckle 10, the buckle body 14 receives the force, so that the engagement between the band 30 and the buckle 10 is performed. It becomes possible to make it stronger.

The buckle 10 can be molded from a flexible synthetic resin, and is preferably molded from an elastic synthetic resin such as polyacetal, polyoxymethylene, polyamide, polycarbonate, and nylon. The buckle 10 of the present invention is composed of a small number of parts and can be easily integrally molded with a mold because of its simple structure.

The buckle 10 of the present invention can incorporate the elements disclosed in Patent Document 1 and Patent Document 2 described above.
For example, in order to make it easy to restore the elastic piece 20 to the horizontal state, a connecting member (not shown) that connects the one end 20A of the elastic piece 20 and the ceiling frame 12 or the like opposed thereto may be provided. Further, a band presser (not shown) for preventing the band 30 from lifting can be provided in the insertion space 16.

DESCRIPTION OF SYMBOLS 10 Buckle 11 Bottom plate 12 Ceiling frame 13 Side plate 14 Buckle main body 16 Insertion space 17 Recess 18 Release button 20 Elastic piece 20A One end portion 20B of the elastic piece The other end portion 21 of the elastic piece 21 The engaging claw 30 The band 31 The engaging groove 40 The lock button 50 Rotating piece 60 Shelf 62 Inclined surface 70 Stopper

Claims (7)

A buckle that engages with an engagement claw of a buckle in a serrated engagement groove formed on the outer surface of the band, and in the locked state, the band is accessible to the buckle but cannot be retracted,
The buckle includes a bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle main body having a band insertion space therein, and is horizontally installed inside the ceiling frame. By comprising an elastic piece having an engaging claw that can be engaged with the mating groove, and a release button that is installed on the both side plates and presses the elastic piece from both sides, and the release button is taken with the fingertip of one hand In the buckle that is capable of releasing the engagement between the engagement groove and the engagement claw by ejecting the elastic piece upward.
A lock button that can move up and down on the elastic piece is installed on the buckle body. When the lock button is pressed and moved downward, the release button is locked and the lock button is connected to the band. A buckle that resists a force acting in the direction of separating the buckle.   The buckle according to claim 1, wherein the lock button is engaged with a recess provided in the elastic piece and the buckle body, thereby resisting a force acting in a direction separating the band and the buckle.   2. The lock button according to claim 1, wherein the lock button is movable up and down along a guide provided on the buckle body, and the lock button is engaged with a convex portion provided on the elastic piece in a state where the release button is locked. buckle. A buckle that engages with an engagement claw of a buckle in a serrated engagement groove formed on the outer surface of the band, and in the locked state, the band is accessible to the buckle but cannot be retracted,
The buckle includes a bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle main body having a band insertion space therein, and is horizontally installed inside the ceiling frame. An elastic piece having an engaging claw that can be engaged with a mating groove and a release button that is installed on the both side plates and presses the elastic piece from both sides, and the release button is photographed with the fingertip of one hand. In the buckle that is capable of releasing the engagement between the engagement groove and the engagement claw by repelling the elastic piece upward by
A rotating piece whose length in one direction is longer than the length in a direction perpendicular thereto is rotatably installed on the elastic piece, and a rotating operation part is integrally formed on the rotating piece; and A shelf that receives at least one end in the longitudinal direction of the rotating piece from the ceiling frame side is formed on the ceiling frame or the side plate, and the engagement state between the shelf and one end of the rotating piece The buckle is characterized in that the release button is locked.   The lock button or the rotation operation part plays a role as a latching protrusion capable of pulling the band and buckle with a fingertip of one hand in the unlocked state. buckle.   6. The buckle according to claim 5, wherein in a state where the release button is locked, the height of the lock button or the rotation operation unit is equal to or lower than the height of the buckle. A buckle that engages with an engagement claw of a buckle in a serrated engagement groove formed on the outer surface of the band, and in the locked state, the band is accessible to the buckle but cannot be retracted,
The buckle includes a bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle main body having a band insertion space therein, and is horizontally installed inside the ceiling frame. By comprising an elastic piece having an engaging claw that can be engaged with the mating groove, and a release button that is installed on the both side plates and presses the elastic piece from both sides, and the release button is taken with the fingertip of one hand In the buckle that is capable of releasing the engagement between the engagement groove and the engagement claw by ejecting the elastic piece upward.
A stopper that is movable in the vertical direction between the ceiling frame and the bottom plate is installed on a buckle body, and the engagement between the band and the buckle is assisted in a state where the stopper is moved to the bottom plate side. buckle.

Images