JP5964194B2 - Slide adjuster with lock mechanism - Google Patents

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 piece having an upper surface as a pressing portion, and connecting the operation piece to two sides of the opposing ceiling frame at the intermediate point between the engaging claw and the pressing portion, respectively. 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 functionally ideal and ideal as a headband buckle for helmets, but it has a connecting shaft that supports the operation piece in order to improve the operability in engaging and releasing the operation piece. 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. An operating claw 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. The operating piece is supported by a connecting shaft that connects the both side plates at an intermediate point between the engaging claw and the pressing portion, so that the intermediate piece can 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 piece 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.

  Further, in Japanese Utility Model Publication No. 64-000087 (Patent Document 3), the tongue plate can be surely engaged with the buckle device, and in this engaged state, the occupant releases the engagement of the tongue plate. A buckle device is disclosed in which the tongue plate is not pulled out of the buckle device unless it is operated and the buckle disengagement force is low when the webbing device is released. This buckle device can be reliably engaged by the action of the lock bar, but the size cannot be finely adjusted.

Japanese Patent No. 3982955 Japanese Patent No. 4005109 Japanese Utility Model Publication No. 64-000087

  It is an object of the present invention to provide a slide adjuster with a lock mechanism that is capable of preventing unlocking against a pressing force that directly acts on the operation piece, in addition to being lightweight and easy to manufacture. It is. It is another object of the present invention to provide a slide adjuster that can be easily locked and released only by operating a slide piece, has a very high lock strength, and can be finely adjusted in size.

The slide adjuster of the present invention is a band and buckle slide adjuster in which a fitting convex part of a buckle can be fitted into a fitting concave part formed as a through-hole on the outer surface of the band. And a buckle body comprising both side plates for connecting the two and having a band insertion space inside, and a fitting projection that is horizontally installed on the inner side of the ceiling frame and can be fitted into the fitting recess of the band on the lower surface of one end. And an operation piece having a portion, and the operation piece is supported by a connection shaft connecting the both side plates so that the operation shaft can be swung around the connection shaft, and the upper portion of the operation piece can be moved in the horizontal direction. A slide piece is installed in the buckle body, and the fitting is locked or released by moving the slide piece in the horizontal direction above the operation piece, and the fitting is released. By the fitting convex portion in the state is in contact part in the fitting recess, wherein the band is capable of positioning the fitting approaching or retracted buckle.

It is preferable to engage with an engaging recess formed in the bottom plate of the buckle in a state where the fitting convex portion is fitted in the fitting concave portion.

It is preferable that the fitting is locked when the slide piece is moved to one end side of the operation piece, and the fitting is released when the slide piece is moved to the other end side of the operation piece. .
The fitting is locked when the slide piece is moved to the other end side of the operation piece, and the fitting is released when the slide piece is moved to the one end side of the operation piece. .

  The slide adjuster of the present invention is a band and buckle slide adjuster in which a buckle engagement claw can be engaged with a serrated engagement groove formed on the outer surface of the band. A buckle body comprising both side plates for connecting the two and having an inside as a band insertion space; an engagement claw that is horizontally installed inside the ceiling frame and engageable with the engagement groove of the band on the lower surface of one end; And an operation piece having a fitting convex part that can be fitted in the fitting concave part of the band, and the operation piece is supported by a connecting shaft that connects the both side plates, so that it can swing around the connecting shaft as a fulcrum. And a slide piece that can move in the horizontal direction on the upper part of the operation piece is installed on the buckle body, and the engagement is locked or locked by moving the slide piece in the horizontal direction on the upper part of the operation piece. Is divided, in a state where the engagement is locked, characterized in that the fitting convex portion is fitted into the fitting recess.

It is preferable that a hooking portion capable of pulling the buckle and the band with one fingertip is provided on the outer surface of the band.

  The slide adjuster of the present invention can prevent unlocking even against a pressing force that directly acts on the operation piece. Further, the present invention can be easily locked and released only by operating the slide piece. Furthermore, since the position of the fitting recess can be confirmed by partly contacting the fitting projection with the fitting recess in the unlocked state, fine adjustment of the size is extremely easy. Therefore, this slide adjuster is optimally applied to products that require a relatively strong fastening force and fine adjustment of size at the same time, such as athletic shoes.

It is a perspective view of the buckle 10 which comprises the slide adjuster of this invention. It is a longitudinal direction side view of the slide adjuster of this invention. It is a principal part vertical side view which shows other embodiment of a slide adjuster. FIG. 6 is a perspective view showing another embodiment of the buckle 10. A plan view (FIG. 5 (1)) showing a state where the band 30 is inserted into the buckle 10 shown in FIG. 4, a longitudinal side view (FIG. 5 (2), (5)) along the line AA in FIG. It is a vertical side view (FIG. 5 (3), (4)) in the BB cutting line of the same figure.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a slide adjuster with a lock mechanism according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of the buckle 10, and in FIG. 1A, a slide piece 40 constituting the buckle 10 is shown separated from the buckle body 14 upward.

  In FIG. 1, the buckle 10 is mainly composed of a flat and cylindrical buckle body 14 including 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 The buckle body 14 is opened in the band sliding direction as insertion openings 15, 15, and the inside thereof becomes an insertion space 16 of the band 30 having a fitting recess 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 30 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 operation piece 20 having a size that fits in the ceiling frame 12 is horizontally installed. On the lower surface of the one end portion 20 </ b> A of the operation piece 20, a fitting convex portion 21 that can be fitted into the fitting concave portion 31 of the band 30 is projected. By making the operation piece 20 slightly lower than the ceiling frame 12, it is possible to prevent the one end 20A or the other end 20B of the operation piece 20 from being inadvertently pushed down.

A connecting shaft 25 is formed at an intermediate portion in the longitudinal direction of the operation piece 20, and this connecting shaft 25 is supported on the upper inner walls of the side plates 13 and 13.
In this embodiment, the connecting shaft 25 has a circular cross section, but may have an elliptical shape or other various cross sectional shapes. It is desirable that the connecting shaft 25 pivotally supports the operation piece 20 and be made as thin as possible in order to ensure smooth operability. Just do it. Note that the connecting shaft 25 is not limited to the side plates 13 and 13, and even if connected to two sides of the facing ceiling frame 12, the connecting shaft 25 can exhibit the same operation as described below.

  There is no particular restriction on the material of the connecting shaft 25, and a material having elasticity such as a synthetic resin may be used, or the connecting shaft 25 may be made of metal to increase the fitting strength between the buckle 10 and the band 30.

The buckle body 14 is provided with a slide piece 40 that can move the upper part of the operation piece 20 in the horizontal direction. In the present embodiment, the slide piece has a rectangular shape, but it does not have to be rectangular.
Although not shown, a slide operation unit can be provided on the surface of the slide piece 40. There is no particular limitation on the shape of the slide operation unit, and any shape that can hook the fingertip of one hand may be used. Although it is not always necessary to provide the slide operation unit on the slide piece 40, the slide operation of the slide piece 40 can be facilitated by providing this.
Further, as will be described later, the slide operation unit can also be used as a hook for pulling the band 30 and the buckle 10 with one hand.

  The side plates 13 and 13 of the buckle 10 are provided with slide guides 17 and 17 for guiding the movement of the slide piece 40 and determining the position of the slide piece. FIGS. 1B and 1C are perspective views showing a state in which the slide piece 40 moves along the slide guides 17 and 17. In the present embodiment, the slide guides 17 and 17 are formed as grooves in the side plates 13 and 13 of the buckle 10. However, the position and shape of the slide guide 17 are not particularly limited as long as they can guide the smooth movement of the slide piece 40. There is no.

  Next, the operation of the slide adjuster will be described with reference to FIG. FIG. 2 is a longitudinal side view of the slide adjuster of the present invention in the longitudinal direction. In these drawings, a fitting recess 31 is formed on the outer surface of the band 30 as a through hole extending from the outer surface of the band 30 to the inner surface.

  As shown in FIG. 2 (1), when the slide piece 40 is positioned on the other end 20B side (left side in FIG. 2) of the operation piece 20, the operation piece 20 rotates around the connecting shaft 25 as a result. The fitting convex portion 21 located on the side is lifted, and the fitting convex portion 21 of the buckle 10 is partially in contact with the fitting concave portion 31 of the band 30. In this state, when the band 30 is inserted into the insertion space 16 from the insertion port 15 on the other end 20B side of the operation piece 20, the outer surface of the band 30 moves forward while pushing up the one end 20A of the operation piece 20. (See FIG. 2 (2).) Further, if the band 30 is moved backward in this state, the outer surface of the band 30 moves backward while pushing up the one end portion 20 </ b> A of the operation piece 20 as in the case where the band 30 is advanced. The fitting convex portion 21 and the fitting concave portion 31 are in contact with each other so that the band 30 can smoothly enter and retract, and the position of the fitting concave portion 31 can be sensibly recognized as will be described later. It ’s fine.

If the material of the connecting shaft 25 is a synthetic resin or other material having elasticity, the operation piece 20 whose one end 20A is pushed up by the band 30 is fitted into the original position, that is, the fitting recess 31 by the elasticity of the synthetic resin. The part 21 returns to a partially contacted state (see FIG. 2 (3)). If the material of the connecting shaft 25 is a metal or other material that does not have elasticity, the operation piece 20 returns to its original position by its own weight or when another component such as a coil spring is provided.
Therefore, the position of the fitting recess 31 can be checked sensuously by returning to the state where the fitting projection 21 of the buckle 10 is partially in contact with the fitting recess 31 of the band 30 as described above. The approach / separation position of the can be adjusted.

  In the present embodiment, a hooking portion 35 is provided on the outer surface of the band 10, and the band 30 and the buckle 10 can be pulled with one fingertip by placing a finger on the hooking portion 35 and the buckle body 14. It is. Further, although not shown, a hooking portion for pulling the band 30 and the buckle 10 with the fingertip of one hand may be provided on the buckle body 14. Furthermore, as described above, when the slide operation unit is provided on the slide piece 40, it can be used as a latching unit for pulling the band 30 and the buckle 10 with the fingertips of one hand.

Next, the lock mechanism by the slide piece of this invention is demonstrated.
As described above, FIG. 2 (3) shows a state in which the fitting recess 31 of the band 30 and the fitting projection 21 of the buckle 10 have been released, but at this time, the slide piece 40 is not the operation piece. It is located on the end 20B side (refer to FIG. 1 (3)), and the approach / separation position of the band 30 and the buckle 10 can be freely adjusted.
Here, if the slide piece 40 is slid along the slide guides 17 and 17 toward the one end portion 20 </ b> A of the operation piece 20 as shown in FIG. 1 (2), the lower surface of the slide piece 40 becomes one end portion of the operation piece 20. The one end portion 20A of the operation piece is pressed down, and the fitting convex portion 21 is fitted into the fitting concave portion 31 formed as a through hole. FIG. 2 (4) shows this strong locked state.

  According to the present invention, the band 30 and the buckle 10 can be easily fitted or released only by operating the slide piece 40. Moreover, since the fitting convex part 21 is fitted to the fitting concave part 31 formed as a through hole, the fitting strength between the band 30 and the buckle 10 is extremely high. Further, when the fitting is released, the fitting convex portion 21 partially contacts the fitting concave portion 31, and the band 30 is advanced and retracted with the fingertip of one hand while recognizing the position of the fitting concave portion 31 sensuously. Therefore, fine adjustment of the size is extremely easy.

Next, another embodiment of the slide adjuster will be described with reference to FIG. However, the same members as those in the embodiment described so far are denoted by the same reference numerals, and the description thereof is omitted.
FIG. 3 is a longitudinal sectional side view of an essential part showing the present embodiment. In these drawings, a fitting recess 31 is formed on the outer surface of the band 30 as a through-hole extending from the outer surface of the band 30 to the inner surface, and an engaging recess 11 </ b> A is formed in the bottom plate 11 of the buckle 10.

  As shown in FIG. 3A, when the slide piece 40 is positioned on the one end portion 20A side (right side in FIG. 3) of the operation piece 20, the operation piece 20 is rotated about the connecting shaft 25. The one end 20 </ b> A side of the belt 20 is lifted, and the fitting convex portion 21 of the buckle 10 is partially in contact with the fitting concave portion 31 of the band 30. In this state, when the band 30 is inserted into the insertion space 16 from the insertion port 15 on the other end 20B side of the operation piece 20, the outer surface of the band 30 moves forward while pushing up the one end 20A of the operation piece 20. (See FIG. 3 (2).) Further, if the band 30 is moved backward in this state, the outer surface of the band 30 moves backward while pushing up the one end portion 20 </ b> A of the operation piece 20 as in the case where the band 30 is advanced. The operation piece 20 whose one end portion 20A is pushed up by the band 30 returns to its original position, that is, a state where the fitting convex portion 21 is partially in contact with the fitting concave portion 31 due to the elasticity of the synthetic resin (see FIG. 3 (3)). .)

As described above, FIG. 3 (3) shows a state in which the fitting concave portion 31 of the band 30 and the fitting convex portion 21 of the buckle are released, but at this time, the slide piece 40 is one end of the operation piece. It is located on the 20A side and is in a state where the approaching / separating positions of the band 30 and the buckle 10 can be freely adjusted.
Here, if the slide piece 40 is slid to the other end portion 20B side of the operation piece, the other end portion 20B side of the operation piece 20 is lifted, and as a result of the operation piece 20 rotating about the connecting shaft 25, it is positioned on the opposite side. The fitting convex portion 21 is fitted into the fitting concave portion 31 and is engaged with the engaging concave portion 11 </ b> A formed in the bottom plate 11 of the buckle 10. FIG. 3 (4) is a longitudinal sectional side view of the main part showing this strong locked state.
In this embodiment, the engaging recess 11A does not penetrate the bottom plate 11. However, the engaging recess 11A may be formed as a through hole extending from the outer surface to the inner surface of the bottom plate 11 in order to make the lock stronger. good.

Next, another embodiment of the slide adjuster will be described with reference to FIGS.
FIG. 4 is a perspective view of the buckle 10 and shows how the slide piece 40 moves along the slide guides 17 and 17.
FIG. 5 is a plan view of the slide adjuster (FIG. 5 (1)) and a longitudinal side view (FIGS. 5 (2) to (5)). In these drawings, the fitting recess 31 is formed on the central outer surface of the band 30. A serrated engagement groove 33 is provided on the outer surface of both sides of the band 30. A fitting convex portion 21 that can be fitted into the fitting concave portion 31 is swingably provided at the center of the one end portion 20A of the operation piece 20, and the engagement groove 33 is formed on both sides of the one end portion 20A of the operation piece 20. An engaging claw 23 that can be engaged with is provided. The fitting recess 21 is formed as a through hole extending from the outer surface to the inner surface of the band 30, and the engagement groove 33 has a serrated cross section 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 vertically from the deepest position.

  There is no particular limitation on the positional relationship between the fitting recess 31 and the engaging groove 33 and the positional relationship between the fitting convex portion 21 and the engaging claw 23. The fitting recess 31 is provided on both outer surfaces of the band 30 and the band. 30 is provided with an engaging groove 33 on the outer surface of the center, and fitting protrusions 21 are provided on both sides of one end 20A of the operating piece 20 so as to be swingable, and an engaging claw 23 is provided at the center of one end 20A of the operating piece 20. Also good.

5 (2) is a longitudinal side view taken along the line AA in FIG. 5 (1), and the slide piece 40 is positioned in the middle of the operation piece 20 as shown in FIG. When entering the insertion space 16 from the insertion port 15 on the other end 20B side (left side in FIG. 5) of the piece, the upper surface of the band 30 comes into contact with the engaging claw 23 of the operation piece 20, and the operation piece 20 The one end portion 20A of the band 30 is advanced while being pushed up, and the approach / separation position of the band 30 with respect to the buckle 10 is adjusted. In this state, since the engaging claw 23 is engaged with and locked with the predetermined engaging groove 33, the band 30 can be advanced with respect to the buckle 10, but cannot be retracted.

  To lock the engagement, when the slide piece 40 is slid toward the one end 20A side of the operation piece 20 as shown in FIG. 4 (2), the fitting convex portion 21 is pushed down by the slide piece 40. Is fitted into the fitting recess 31. FIG. 5 (3) is a longitudinal side view taken along the line BB in FIG. 5 (1), and is a diagram showing this strong locked state.

  To release the lock, as shown in FIG. 4A, when the slide piece 40 is returned to the middle position of the operation piece 20, the fitting convex portion 21 is lifted by the action of the slide piece 40 and the fitting is performed. Canceled. FIG. 5 (4) is a longitudinal side view taken along the line BB in FIG. 5 (1), and shows a state where the fitting convex portion 21 is released from the fitting concave portion 31.

As described above, FIG. 5 (4) shows a state in which the fitting recess 31 of the band 30 and the fitting projection 21 of the buckle are released, but at this time, the slide piece 40 is in the middle of the operation piece 20. The engaging claw 23 is engaged with and locked with a predetermined engaging groove 33 (see FIG. 5B).
Here, when the slide piece 20 is moved to the other end portion 20B side of the operation piece 20 as shown in FIG. 4 (3), the operation piece 20 rotates around the connecting shaft 25, and as a result, the engagement piece 20 is located on the opposite side. The pawl 23 is lifted and the engagement between the band 30 and the buckle 10 is released. FIG. 5 (5) is a longitudinal side view taken along the line AA in FIG. 4, and shows this disengaged state.

  In the present embodiment, the engagement claw 23 and the engagement groove 33 are easily unlocked only by operating the slide piece 40, and the engagement protrusion 21 is engaged with the engagement recess 31 to lock the engagement. Is possible. Further, in a state where the slide piece 40 is positioned at the intermediate portion of the operation piece 20, the band 30 can be advanced with respect to the buckle 10, but it cannot be retracted, so that the size can be easily finely adjusted.

  In the present invention, the ceiling frame 12 is not necessarily limited to one having four sides. About the side facing the one end 20A of the operation piece 20, this can be omitted when the buckle is reduced in weight and size.

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 operation piece 20 to a horizontal state, a connecting member that connects the one end 20A of the operation piece 20 and the ceiling frame 12 facing the other may be provided (not shown). 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 20 Operation piece 20A One end part 20B of the operation piece Other end part 21 of the operation piece Engagement convex part 25 Connection shaft 30 Band 31 Engagement concave part 40 Slide piece

Claims (6)

In the band and buckle slide adjuster that allows the fitting convex part of the buckle to be fitted into the fitting through hole formed on the outer surface of the band,
The buckle, the buckle body inside consists of a side plate and a band insertion space that connects the bottom plate and the ceiling frame and both opposed, horizontally disposed inside the roof frame, through the band end lower surface And an operation piece having a fitting convex part that can be fitted into the hole , and by supporting the operation piece by a connection shaft that connects the both side plates, the connection shaft can be swung around the fulcrum,
A slide piece that can move in the horizontal direction on the upper part of the operation piece is installed on the buckle body, and the fitting is locked or released by moving the slide piece in the horizontal direction on the upper part of the operation piece. if that is the fitting convex portion in is released state contacts a portion in the through hole, a band and a buckle, wherein the band is capable of positioning the fitting approaching or retracted buckle Slide adjuster. The slide adjuster according to claim 2, wherein the slide adjuster is engaged with an engagement recess formed in a bottom plate of the buckle in a state where the fitting convex portion is fitted in the through hole . The fitting is locked when the slide piece is moved to one end side of the operation piece, and the fitting is released when the slide piece is moved to the other end side of the operation piece. Or the slide adjuster of 2.   The fitting is locked when the slide piece is moved to the other end side of the operation piece, and the fitting is released when the slide piece is moved to one end side of the operation piece. Or the slide adjuster of 2. A band that allows engagement of a buckle engagement claw in a serrated engagement groove formed on the outer surface of the band, and allows engagement of a fitting protrusion of the buckle into a fitting through hole formed on the outer surface of the band; In the buckle slide adjuster,
The buckle comprises a buckle body comprising a bottom plate and a ceiling frame facing each other and both side plates connecting the two, the inside of which is a band insertion space, and is installed horizontally on the inside of the ceiling frame. It is composed of an engaging claw that can be engaged with the mating groove and an operating piece having a fitting convex part that can be fitted into the through-hole of the band, and the operating piece is supported by a connecting shaft that connects the both side plates. By using the connecting shaft as a fulcrum,
A slide piece that can move in the horizontal direction on the upper part of the operation piece is installed in the buckle body, and the engagement is locked or released by moving the slide piece in the horizontal direction on the upper part of the operation piece. A band and buckle slide adjuster, wherein the fitting convex portion is fitted into the through hole in a locked state.   The slide adjuster according to any one of claims 1 to 5, wherein a hooking portion capable of pulling the buckle and the band with a fingertip of one hand is provided on an outer surface of the band.

Images