JP2000157309A - Buckle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buckle consisting of a female member and a male member which can be disengaged easily by one hand and operated lightly and smoothly by locating the engagement point of the female member where the quantity of elastic deformation is large. SOLUTION: This female member 1 is open at the top, and has a through hole 13 on both side walls and a guide line 12 to guide a male member 2 formed under a through hole 13. The guide line 12 has a protruding part 15 ahead of the through hole 13. The top of an operation plate 3 is pivotally attached to the through hole 13 so that it can be pressure-welded to a tongue piece 27 of the male member 2, and the operation plate 3 is in contact with a protruding part 15 so that the oscillation of the operation plate 3 is restricted. An elastically deformable stopper plate 16 is attached diagonally deep from a standing part 19 of an insertion hole 14, and a mounting piece 1 on which the top of an engaging plate 28 is mounted is attached to the base wall 17 opposite to the stopper plate 16. The male member 2 has an elastically deformable tongue piece 27 at the center of a base end 26, with an engaging plate 28 on both sides of the tongue piece 27. An engagement part 29 is formed on the rear surface of the top of the engaging plate 28 to be engaged with the stopper plate 16, so that the female member 1 and the male member are engaged with each other. They are disengaged by disengaging the stopper plate 16 and the engaging plate 28 by oscillating the operation plate 3, pressing the tongue piece 27 down, and deforming the stopper plate 16 downward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle comprising a rectangular female member having a belt mounting portion at one end, and a flat male member having a belt mounting portion at one end and inserted into the female member. Particularly, the present invention relates to a buckle for fastening a belt used for a bag, sports equipment, or the like, which is suitable for a suspender buckle used for wearing clothes.

[0002]

2. Description of the Related Art Conventionally, this type of buckle is a buckle composed of a synthetic resin female member and a male member as shown in FIG. A mating piece is provided, and a key-shaped projection is provided on the rear surface of the distal end of the engaging piece to engage with the elastic locking piece of the female member, and an elastic tongue piece that elastically deforms is provided between the engaging pieces. On the other hand, the female member is formed in a box shape with an insertion port on the opposite side of the belt mounting section, and is provided with an elastically deformable elastic locking piece that rises from the bottom of the insertion port and extends toward the wall surface on the belt mounting section side. A U-shaped slit is formed on the surface facing the bottom surface, which engages with the engaging piece of the male member, except for the insertion port side, to form a pressing release piece.

An engaging piece and an elastic tongue of a male member are inserted from an insertion port of a female member, and the key-shaped projection of the engaging piece and the locking projection of the elastic locking piece are locked and connected. When the release piece is pressed to the elastic locking piece side, the elastic protrusion is elastically deformed to the elastic locking piece side by the pressing projection, and the elastic locking piece is elastically deformed by the release projection to release the locked state with the engaging piece. The buckle for separating the male member and the female member is disclosed in Japanese Utility Model Application No. 1-149782.
No. (Japanese Utility Model Application Laid-Open No. 3-87412).

As shown in FIG. 14, the buckle is composed of a male member and a female member. The male member has a string attaching portion having a hollow portion, and an engaging projection projecting from the string attaching portion and having a locking projection formed on the upper surface thereof. A frame member having a tongue piece, the female member having a hollow portion, a locking control plate pivotally mounted on the frame body and having a locking edge formed on a pivotally attached portion thereof, and a frame member An insertion opening into which a locking tongue of a male member formed at a position facing the locking control plate is inserted, and a free end formed integrally with the frame so as to extend from the insertion opening toward the inside of the frame. Japanese Patent Application Laid-Open No. H10-85011 discloses a buckle provided with an elastic piece curved toward the locking edge of the locking control plate and a string mounting bar provided integrally with the frame body for mounting through a string or a belt. Is disclosed.

[0005]

In the buckle shown in FIG. 13 described in the preceding paragraph, in order to release the engagement between the female member and the male member and to separate them, the pressing release piece of the female member is pressed and the pressing protrusion is used. At the same time, the elastic tongue is elastically deformed to the elastic locking piece side, and at the same time, the buckle is configured to elastically deform the elastic locking piece by the release projection to release the engagement with the engaging piece. The pressure release piece must be pressed with a fingertip.However, the release operation is performed by holding the entire buckle and then pressing the pressure release piece, so the release operation is troublesome and cannot be performed smoothly. is there.

In the buckle shown in FIG. 14, a female member and a male member are engaged with each other by a locking projection provided on a base upper surface of a locking tongue of the male member and an upper portion of an insertion opening of the female member. Since the engagement point is located near the base of the locking tongue, the amount of elastic deformation is small and a considerable force must be applied to release the engagement. There must be. Therefore, the operation for releasing the buckle is heavy and hard, and cannot be smoothly performed. Further, this type of buckle also has a problem in terms of production, such that the frame and the locking control plate cannot be integrally formed by injection molding or extrusion using a thermoplastic resin.

The present invention has been made in view of the above-mentioned problems, and the invention according to claim 1 of the present invention is a female member engaged with a buckle composed of a female member and a male member. The disengagement operation between the female member and the male member can be easily performed with one hand, and the disengagement operation can be performed lightly and smoothly by disposing the engagement point between the female member and the male member at a location where the amount of elastic deformation is large. It is a main object to provide a buckle which is a buckle and which is suitable for integral molding of a thermoplastic resin.

According to a second aspect of the present invention, in addition to the object of the first aspect, a disengagement operation can be easily performed by a rotating operation of an operation plate provided on the female member, and the male member can be used. It is an object of the present invention to provide a buckle in a form that does not hinder the removal of the buckle from the female member.

According to the third and fourth aspects of the present invention, in addition to the objects of the first aspect, when the operation plate provided on the female member is disengaged, the operation plate needs to be disengaged. It is an object of the present invention to provide a buckle that suppresses internal rotation and has smooth operation and less trouble.

According to a fifth aspect of the present invention, in addition to the object of the first aspect of the present invention, a strong buckle capable of withstanding a long-term use is provided by achieving reinforcement of the female member on the insertion port side with a simple structure. The purpose is to do.

According to a sixth aspect of the present invention, in addition to the object of the first aspect, when the male member is inserted into the female member, the tip of the male member is placed to hold the engagement of the male and female members. It is another object of the present invention to provide a buckle that allows only the locking plate of the female member to be elastically deformed while retaining the male member when the engagement is released, so that the engagement can be released accurately and easily.

According to a seventh aspect of the present invention, in addition to the object of the first aspect, the present invention is characterized in that the material of the male member and the female member with the operation plate mounted thereon can be integrally molded using a thermoplastic resin. It is an object of the present invention to provide a buckle capable of improving buckle productivity.

[0013]

In order to achieve the above object, according to the first aspect of the present invention, a rectangular female member 1 having a belt mounting portion 10 at one end and an open upper surface is provided.
And a buckle comprising a male member 2 provided with a belt mounting portion 25 at one end and capable of being inserted into the female member 1. The female member 1 projects slightly obliquely upward from the insertion port 14 toward the back of the bottom surface and has elasticity. A deformable locking plate 16 is provided, and a protruding guide strip 12 for guiding the male member 2 is linearly provided on the inner surface of the side wall 11 above the locking plate 16.
A through-hole 13 is provided in the center of the side wall 11 above the upper side 2, and a flat operation plate 3 is pivotally connected to the through-hole 13.
The male member 2 is formed so that it can be pressed against the tongue piece 27 of the male member 2. The male member 2 has a tongue piece 27 that can be elastically deformed at the center of the base end portion 26 of the belt mounting portion 25. And a pair of gate-shaped engaging plates 28 projecting from both sides of the base end portion 26, and a key-shaped engaging portion 29
And a buckle formed so as to be able to engage with the locking plate 16 as a main configuration.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a small protrusion 6 having a protruding shape is formed at the tip of the operation plate 3 provided on the female member 1 so that the tongue of the male member 2 is formed. This is a buckle in which the operation plate 3 is pivotally attached to the through hole 13 of the side wall 11 such that the tip end provided with the small projection 6 is pressed toward the piece 27 and faces the insertion port 14 side.

According to a third aspect of the present invention, in addition to the configuration of the first aspect of the present invention, a concave notch 7 is provided at each end of the operation plate 3 provided on the female member 1 at both ends thereof. Part 7
Is formed so as to be able to rotate between the guide strips 12 projecting from the inner surface of the side wall 11, and the guide strip 12 near the belt mounting portion 10 is guided from the through hole 13 of the side wall 11 to the guide near the insertion port 14. Projection 1 projecting inward from ridge 12
5 is a buckle for preventing the operation plate 3 from rotating by the protrusion 15.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the operation plate 3 provided on the female member 1 is provided with a concave notch 7 having a corner at the both ends thereof. Part 7
Are formed so as to be rotatable between guide strips 12 projecting from the inner surface of the side wall 11, and guide strips 12 extending from the through holes 13 of the side wall 11 toward the belt mounting portion 10.
And a buckle for connecting a plate-shaped connecting plate 21 between the side walls 11 to prevent the operation plate 3 from rotating by the connecting plate 22.

According to a fifth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, both sides of the female member 1 are connected to the guide strip 12 projecting from the insertion port 14 of the female member 1 through the through hole 13 of the side wall 11. Wall 1
A buckle in which the female member 1 is reinforced by arranging a plate-like reinforcing plate 23 between the buckles.

According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, the female member 1 is opposed to the locking plate 16 at the center of the base wall 17 near the belt mounting portion 10 and has the locking plate. 16 is a buckle formed so as to protrude a horizontal protruding mounting piece 18 slightly lower than 16 and to mount the distal end of the engaging plate 28 of the male member 2.

According to a seventh aspect of the present invention, in addition to the structure of the first aspect, the male member 2 and the female member 1 pivotally supporting the operation plate 3 are injected by using a thermoplastic resin as a material. A buckle in which the male member 2 and the female member 1 are integrally formed by molding means or extrusion molding means.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a buckle according to the present invention will be specifically described below with reference to the drawings.

As shown in FIG. 1, the buckle of the present invention comprises a female member 1 having a belt mounting portion 10 at one end and an operation plate 3 and a male member 2 having a belt mounting portion 25 at one end.
And a detachable buckle of a type in which the male member 2 is inserted into the female member 1.

The buckle female member 1 and male member 2 are buckles integrally formed by injection molding or extrusion molding using a thermoplastic resin such as polyacetal, polyamide, polypropylene, or polybutylene terephthalate.

The buckle of the first embodiment shown in FIGS. 1 to 10 is provided with a belt attaching portion 10 for attaching a belt at one end, and a rectangular female member 1 whose upper surface is opened, that is, opened, has slightly A high-sided side wall 11 is erected, and a guide strip 12 projecting inward and guiding the male member 2 is provided at an intermediate portion of the side wall 11, and a side wall 1 above the guide strip 12 is provided.
1, a through-hole 13 for pivotally connecting the operation plate 3 is provided at the center, and the guide strip 12 is closer to the belt mounting portion 10 from the through-hole 13 than from the insertion port 14 to the through-hole 13 as shown in FIG. An inwardly projecting portion 15 is provided, and the operation plate 3 is
It is formed so as to prevent excessive rotation to the side.

On the bottom surface of the female member 1, as shown in FIG.
And a plate-like locking plate 16 which projects obliquely upward from the rising portion 19 toward the back and can be elastically deformed. The front end of the locking plate 16 is formed in a F-shaped cross section with an upper surface protruding. It is formed so as to be able to engage with an engaging portion 29 formed on the back surface of the engaging plate 28 of the member 2. Further, the belt mounting section 10
At the center of the base wall 17 on the side, a protruding piece-like mounting piece 18 is horizontally protruded at a position slightly lower than the tip of the locking plate 16 so as to face the locking plate 16, and the male member 2 is inserted. At this time, the engaging plate 28 is formed so that the tip thereof can be placed and held.

The operation plate 3 is formed in a flat plate shape, and at one end thereof is provided with a knob portion 4 which protrudes in an arc shape so as to be easily picked. On both sides near the tip of the operation plate 3, a pivot 5 which can be pivotally supported by the through hole 13 is provided. 3 is pivotally attached to the side wall 11. A small protrusion 6 having a protruding shape is provided at the center of the front end of the operation plate 3 so as to be pressed against the tongue piece 27 of the male member 2 to be inserted. A notched concave portion 7 is provided, and the operation plate 3
Is formed so as not to contact the guide strip 12 of the side wall 11 when the is rotated. However, the tip end portion adjacent to the concave notch 7 abuts against the protrusion 15 of the guide strip 12 during rotation to prevent the operation plate 3 from rotating more than necessary, so that the operation plate 3 is substantially shifted from the substantially horizontal position. Restrict the range up to the upright position so that it can swing.

Below the side wall 11 of the female member 1, a locking plate 1
6 and a core hole 20 for molding the mounting piece 18, and a core hole for molding the rising portion 19 and the base of the locking plate 16 is provided near the insertion port 14 on the back surface of the female member 1. 21 are provided.

Further, in order to mount the operation plate 3 in the through hole 13 of the side wall 11 of the female member 1, the pivot 5 of the operation plate 3 is inserted into the through hole 13.
The operation plate 3 can be attached to the through-hole 13 of the side wall 11 by integrally molding by injection molding or extrusion molding using a thermoplastic resin in a form in which is present.

The male member 2 has a belt mounting portion 25 at one end as shown in FIG.
At the center of 6, a tongue-like tongue piece 27 capable of elastic deformation is protruded,
On both sides of the tongue piece 27, a pair of gate-shaped engaging plates 28 projecting around the tongue piece 27 are protruded, and a key-shaped engaging portion 29 is provided on the back surface at the front end of the engaging plate 28 to form the female member 1. Is formed so as to be able to engage with the locking plate 16 when inserted.

As shown in FIGS. 8 and 9, the engaging plate 28 is provided with a thick rib 30 on the outer edge thereof, and a rib 31 is also provided on the base outer edge of the lower surface of the engaging plate 28 so that the engaging plate 28 is elastically deformed. It has been reinforced and prevented from doing so.

The operation of the female member 1 and the male member 2 will be described. Tightening belts are attached to the belt mounting portion 10 of the female member 1 and the belt mounting portion 25 of the male member 2, respectively, and the engaging plate 28 of the male member 2 is moved. Side wall 1 from insertion port 14 of female member 1
1 along the guide strip 12, the engagement plate 28
After the tip of the lock plate 16 presses the lock plate 16 and enters, the engagement plate 28
4 engages the distal end of the locking plate 16 as shown in FIG. 4, and the male member 2 is pulled out of the female member 1 with the tongue piece 27 in contact with the surface of the locking plate 16. Can not do it.

Next, in order to release the engagement between the female member 1 and the male member 2 and withdraw the male member 2, the operating plate 3 pivotally attached to the side wall 11 of the female member 1 and the knob 4 are gripped. When the operation plate 3 is turned upright, the small protrusion 6 of the operation plate 3 comes into contact with the tongue piece 27 of the male member 2, and when the operation plate 3 is further rotated, the tongue piece 27 is elastically deformed and locked at the tip of the tongue piece 27. Presses the plate 16 so that the locking plate 16
Is elastically deformed and disengaged from the engagement portion 29 of the engagement plate 28 to release the engagement state, so that the male member 2 can be removed from the female member 1. When the locking plate 16 is pressed by pressing the tongue piece 27 with the operation plate 3, the distal end of the engaging plate 28 is held immovably on the mounting piece 18, so that the engagement is released smoothly. .

The second embodiment shown in FIG. 11 is a modification of the guide strip 12 in the female member 1. The guide strip 12 projecting from the side wall 11 has a protrusion 15 extending from the through hole 13 to the belt mounting section 10 side. Instead of this, a flat plate-like connecting plate 22 having the same width as the protruding portion 15 is provided in a bridging shape on the guide strips 12 on both sides, and this connecting plate 22 also prevents the operation plate 3 from rotating more than necessary. Play a role.

The third embodiment shown in FIG. 12 is also a modification of the guide strip 12 in the female member 1. The guide strip 12 protruding from the side wall 11 has a protrusion protruding inward toward the belt mounting portion 10. 15, and a flat reinforcing plate 23 is provided in a bridging manner on the guide strips 12 on both sides which cannot prevent the operation of the operation plate 3 from the insertion port 14 to the through hole 13. In addition to the reinforcement, the male member 2 is smoothly inserted.

[0034]

The buckle according to the present invention has the configuration as described above, and has the following effects by this configuration.

According to a first aspect of the present invention, there is provided a female member having a rectangular shape having a belt mounting portion at one end and an open upper surface, and a male member having a belt mounting portion at one end and capable of being inserted into the female member. The female member protrudes slightly obliquely upward from the insertion port on the bottom surface, and is provided with an elastically deformable locking plate, and by providing a protruding guide strip on the inner surface of the side wall above the locking plate, Even in the case of a female member having an open upper surface, the male member can be accurately and smoothly inserted by the elastically deformable locking plate and the guide strip provided on the side wall.

Further, a through hole is provided at the center above the guide strip, an operation plate is pivotally connected to the through hole, and the tip of the operation plate is formed so as to be able to press against the tongue piece of the male member. An elastically deformable tongue piece protrudes from the center of the base end, and a gate-shaped engaging plate surrounding the tongue protrudes from both sides of the base end. Is provided so that it can be engaged with the locking plate, so that the upper part of the female member is open,
A rotatable operation plate can be installed, the disengagement operation can be performed with one hand more easily than the type pressed with a fingertip, and the engagement between the female member and the male member can be firmly and reliably performed. .

According to a second aspect of the present invention, in addition to the effects of the first aspect, a small projection is formed at the tip of the operation plate, and the operation plate is formed on the side wall so that the tip is directed toward the insertion port side. By being pivotally attached to the through hole, the operation of the operation plate is reliably transmitted to the small piece member, and when the engagement is released, the operation plate is released when the engagement plate comes off even if the operation plate is slightly upright. Since it is operated in the direction, there is an effect that the male member can be removed smoothly.

According to the third and fourth aspects of the present invention, in addition to the effects of the first aspect of the present invention, a concave notch is provided at both ends of the operation plate, and a gap between the guide strips having the concave notch projecting from the side wall is provided. It is formed to be rotatable, and a protrusion protruding from the through-hole near the belt mounting part from the guide near the insertion port is provided, or a connecting plate is connected between the side walls and connected to the guide. Since the rotation of the operation plate is prevented, the operation plate is not operated unnecessarily by the protruding portion or the connection plate, so that the disengagement operation can be easily performed.

According to a fifth aspect of the present invention, in addition to the effects of the first aspect of the present invention, the female member is reinforced by connecting a guide strip between the insertion port and the through hole and extending a reinforcing plate between both side walls. By doing so, there is an effect that the insertion port in the female member can be easily reinforced, and the insertion operation of the male member can be guided, so that a smooth insertion operation can be performed.

According to a sixth aspect of the present invention, in addition to the effect of the first aspect, a horizontal mounting plate is provided at the center of the base wall on the side of the belt mounting portion so as to face the locking plate and to be slightly lower than the locking plate. By protruding the piece and forming the tip of the engagement plate so that it can be placed, the engagement plate of the male member is held in a stable state without being affected by the operation of the operation plate, and the disengagement is smoothly performed There are effects that can be performed.

According to a seventh aspect of the present invention, in addition to the effects of the first aspect, the male member and the female member having the operation plate pivotally supported are formed by injection molding or extrusion molding using a thermoplastic resin. By integrally molding, the male member and the female member provided with the operation plate can be molded at once, and there is an effect that the productivity of the buckle can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a female member and a male member of a buckle of a first embodiment are separated.

FIG. 2 is a perspective view showing a state in which a female member and a male member of the buckle are engaged with each other.

FIG. 3 is a front view showing a state where the female member and the male member of the buckle are engaged with each other.

FIG. 4 is a central longitudinal sectional view showing a state where the female member and the male member of the buckle are engaged with each other.

FIG. 5 is a partially broken front view of the female member of the buckle.

FIG. 6 is a side view of the female member of the buckle.

FIG. 7 is a central longitudinal sectional view of the female member of the buckle.

FIG. 8 is a front view of the male member of the buckle.

FIG. 9 is a side view of the male member of the buckle.

FIG. 10 is a central longitudinal sectional view of a male member of the buckle.

FIG. 11 is a central longitudinal sectional view of a female member of a buckle according to a second embodiment.

FIG. 12 is a central longitudinal sectional view of a female member of a buckle according to a third embodiment.

FIG. 13 is a longitudinal sectional view showing a state in which a female member and a male member of a known buckle are engaged.

FIG. 14 is a longitudinal sectional view showing a state in which a female member and a male member of another known buckle are engaged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female member 2 Male member 3 Operation plate 6 Small protrusion 7 Recessed part 10 Belt attachment part 11 Side wall 12 Guide strip 13 Through hole 14 Insertion port 15 Projection 16 Locking plate 17 Base wall 18 Mounting piece 22 Connection plate 23 Reinforcement Plate 25 Belt Attachment 26 Base End 27 Tongue 28 Engagement Plate 29 Engagement

Claims (7)

[Claims] 1. A buckle comprising: a rectangular female member 1 provided with a belt mounting portion 10 at one end and an open upper surface; and a male member 2 provided with a belt mounting portion 25 at one end and insertable into the female member. The female member 1 is provided with an elastically deformable locking plate 16 projecting slightly obliquely upward from the insertion port 14 on the bottom surface, and a protruding guide strip 1 is formed on the inner surface of the side wall 11 above the locking plate 16.
2, a through hole 13 is provided in the center above the guide strip 12, and a plate-like operation plate 3 is pivotally attached to the through hole 13 so that the tip of the operation plate 3 can be pressed against the tongue piece 27 of the male member 2. The male member 2 has an elastically deformable tongue 27 protruding from the center of a base end 26 of the belt mounting portion 25, and a gate-shaped engaging plate 28 surrounding the tongue 27 is attached to the base end 26. A buckle which protrudes from both sides of the buckle and is formed so as to be able to engage with the locking plate 16 by providing a key-shaped engaging portion 29 on the back surface of the front end of the engaging plate 28. 2. A small projection 6 is formed at the tip of the operation plate 3, and the operation plate 3 is pivotally connected to the through hole 13 of the side wall 11 such that the tip is directed toward the insertion port 14 side. Buckle described. 3. A concave notch 7 is provided at both ends of the operation plate 3,
The recessed portion 7 is rotatably formed between the guide strips 12 projecting from the side wall 11, and the belt mounting portion 1
The guide strip 12 closer to the insertion port 14 is replaced with the guide strip 12 closer to zero.
The protruding portion 15 is provided so as to protrude further inward than the protruding portion 15.
2. The buckle according to claim 1, wherein the buckle prevents rotation of the operation plate. 4. A concave notch 7 is provided at both ends of the operation plate 3,
The recessed portion 7 is rotatably formed between the guide strips 12 projecting from the side wall 11, and the belt mounting portion 1
The buckle according to claim 1, wherein a connecting plate (22) is connected between the side walls (11) and connected to the guide strip (12) to prevent rotation of the operation plate (3). 5. The buckle according to claim 4, wherein a reinforcing plate is connected between the side walls and connected to the guide strip between the insertion port and the through-hole to reinforce the female member. 6. A horizontal mounting piece 18 is provided at the center of the base wall 17 on the side of the belt mounting portion 10 so as to oppose the locking plate 16 and slightly lower than the locking plate 16 so as to project the tip of the engaging plate 28. The buckle according to claim 1, wherein the buckle is formed so as to be mountable. 7. The buckle according to claim 1, wherein the male member 2 and the female member 1 pivotally supporting the operation plate 3 are integrally formed by injection molding or extrusion molding using a thermoplastic resin.