JPH0852009A - Buckle - Google Patents

Abstract

PURPOSE:To provide a buckle whose male member and female member are surely engaged with each other and whose operability at the time of attachment/ detachment is excellent and whose size is small and whose strength is high. CONSTITUTION:This buckle consists of a male member 10 fitted to one of the members to be connected to each other and a female member 20 fitted to the other. An insertion piece 14 to be inserted into the female member 20 is formed at the male member 10, and an engage-stopping portion 16 is formed at this insertion piece 14. At the female member 20, a housing portion 24 into which the insertion piece 14 is to be inserted and an engage-stopped portion 26 at which the engage-stopping portion 16 of the insertion piece 14 of the male member 10 is to be engage-stopped are formed. A cantilever elastic push- pressing piece 28 whose tip portion butts elastically against a portion on the approximately opposite side to the engage-stopping portion 16 of the insertion piece 14, is projectingly formed inside the housing portion 24 of the female member 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle which is a hooking tool used for connecting a belt, a bag band and other members.

[0002]

2. Description of the Related Art Conventionally, for example, a buckle provided at both ends of a belt is composed of a male member and a female member, as disclosed in Japanese Patent Publication No. 2-28324, and an insertion piece projects from a base portion of the male member. Is provided, the engaging portion for engagement is provided at the tip of the insertion piece, and the female member is provided with the insertion portion accommodation portion and the engagement portion. The insertion portion of the male member is accommodated and the engagement portion is formed. There is one that engages with a locked portion to connect a male member and a female member. The female member of the buckle is provided with a flexible wall that elastically biases the insertion piece from the back surface side to the engagement position. The flexible wall is integrally formed with the female member by fixing both ends to the front and rear portions of the accommodating portion, and the intermediate portion elastically deforms when the insertion piece is inserted,
Further, even after the insertion, the insertion piece is elastically biased to the engagement position.

Further, as disclosed in Japanese Utility Model Laid-Open No. 4-9307, a male member and a female member are provided in the same manner as the above technique, and elastic pieces are provided at the bases on both sides of the insertion piece of the male member. In the provided state, the elastic member biases the female member in the connected state,
Others have the male member held in the engaged position. Further, as disclosed in Japanese Utility Model Publication No. 63-42811, there has been proposed one in which a tongue piece for urging and supporting the base end portion of the insertion piece at the time of insertion is provided on the female member side.

[0004]

In the case of the buckle disclosed in Japanese Patent Publication No. 2-28324 of the above-mentioned prior art, the flexible wall is located in the accommodating portion of the female member and is fixed at both ends. However, there is a drawback that the force for urging the insertion piece of the male member is weaker in some cases, and the range in which elastic deformation is possible is small, which results in poor operability. Further, when the biasing force is increased, the elastically deformable range is further reduced, and the operability is further deteriorated. Further, in the case disclosed in Japanese Utility Model Laid-Open No. 9307/1992, elastic pieces are provided on both sides of the insertion piece of the male member, the size of the male member and the female member becomes large, and the operability is poor. It was Further, in order to increase the engagement strength, it is necessary to strengthen the male member and the elastic piece, which causes a problem of further increase. In addition, actual public Sho 63-4
In the case of the one disclosed in Japanese Patent No. 2811, the tongue piece is
It serves both as a support and guide for the male member, and after insertion,
It merely retained the base of the male member.

The present invention has been made in view of the above-mentioned conventional technique, and provides a buckle in which the male member and the female member are securely engaged with each other, the operability at the time of attachment / detachment is good, and the size and strength are high. The purpose is to do.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a male member attached to one of the members connected to each other such as a belt and a female member attached to the other member, and is inserted into the male member to the male member. And a locking portion is provided on the insertion piece, and the female member has a receiving portion into which the insertion piece is inserted, and a locking portion of the insertion piece of the male member engaged with the engagement member. A buckle in which a cantilever-like elastic pressing piece which forms a stop portion and whose tip end elastically abuts on the surface of the insertion piece on the side opposite to the locking portion is provided in the accommodating portion.

The elastic pressing piece projects from the base portion of the female member into the accommodating portion, and the tip portion thereof is bent toward the back surface of the accommodating portion to form an insertion guide portion for the inserting piece. Further, the elastic pressing piece is provided so as to project from the tip end opening side of the accommodating portion toward substantially the center on the insertion piece insertion locus in the accommodating portion. Further, an elastic support piece is provided for elastically supporting the back surface side of the elastic pressing piece in a state where the insertion piece is inserted into the female member and the elastic pressing piece is in contact with the back surface side of the insertion piece. Is. Further, at least one of the elastic pressing piece and the elastic supporting piece is formed with a curved portion that is curved in the projecting direction at the base end portion.

[0008]

In the buckle of the present invention, the tip of the elastic pressing piece elastically abuts the portion of the insertion piece substantially opposite to the locking portion in the state where the insertion piece of the male member is inserted into the accommodation portion of the female member. In contact with each other, the tip end portion of the insertion piece is biased in the engaging direction so that the locking portion faces the locked portion, thereby ensuring the engaged state with the locked portion.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of the present invention. The buckle of this embodiment has a resin male member 10 attached to one end of a belt (not shown), the other end of the belt and the other end of the belt (not shown). A female member 2 made of resin, which is attached to a mounting piece of a member such as a bag and into which the male member 10 is inserted and engaged.
It consists of 0 and. The male member 10 is formed with an insertion piece 14 protruding from the base portion 12. On the upper surface of the distal end portion of the insertion piece 14, there is provided a locking portion 16 composed of a stepped portion which is bulged while being inclined rearward slightly from the direction perpendicular to the protruding direction. The locking portion 16 has a locking surface 1
6a is formed in a concavely curved shape. In addition,
The locking surface 16a may be formed into a flat surface or a convex surface. Further, an operation portion 17 is formed from the locking portion 16 to the distal end portion of the insertion piece 14 and is pushed down when the engagement is released. Further, on both sides of the base end portion of the surface of the insertion piece 14 opposite to the locking portion 16, a pair of support portions 18 integrally projecting from the base portion 12 of the male member 10 and the base end portion of the insertion piece 14.
Are formed. Further, the base portion 12 is formed with a belt attachment portion 19 through which one end portion of a belt or the like is inserted.

The female member 20 includes an insertion piece 14 of the male member 10.
A housing portion 24, which is an internal space having an opening portion 24a into which is inserted, is formed, and an upper surface opening portion 24b is formed in the housing portion 24 on the front surface side of the female member 20. The male member 1 is provided at the peripheral edge of the upper surface opening 24b of the female member 20 on the opening 24a side.
A locked portion 26 that engages with the locking portion 16 of 0 is formed. The locked portion 26 is formed in a curved shape that matches the shape of the locking surface 16 a of the locking portion 16. This locked portion 26
The engaging surface of may be a convex surface, a concave surface, or a flat surface. In the upper surface opening 24b, the locking portion 16 and the operating portion 17 are exposed upward in the engaged state, and the back surface on the opposite side of the upper surface opening 24b is also the lower surface opening 24c. Further, a belt attachment portion 29 is formed on the base portion 22 of the female member 20 opposite to the opening portion 24a.

In the accommodating portion 24, there is provided an elastic pressing piece 28 which protrudes toward the center at an angle of about 45 degrees from a position near the back surface on the base 22 side. The elastic pressing piece 28 is formed in the accommodating portion 24 in a plate shape having a width slightly narrower than the width of the insertion piece 14, and the tip portion of the elastic pressing piece 28 locks the insertion piece 14 with the insertion piece 14 inserted. It is elastically abutted on the back side of the portion 16. An insertion guide portion 28a is provided at the tip of the elastic pressing piece 28 so that the tip of the tip is further bent by approximately 90 degrees and extends slightly toward the back surface of the housing portion 24 to guide the insertion piece 14 in the engaging direction when the insertion piece 14 is inserted. Has been.

Next, the operation of the buckle of this embodiment will be described below. First, in order to mount the male member 10 on the female member 20, as shown in the drawing, the opening 2
The insert piece 14 is inserted into 4a. At this time, the distal end portion of the insertion piece 14 has the insertion guide portion 28 at the distal end portion of the elastic pressing piece 28.
It abuts a and is pushed up along the insertion guide portion 28a as it is inserted, and further elastically deforms the elastic pressing piece 28 downward. Then, the insertion piece 14 also receives the accommodation portion 24.
It is inserted while being slightly elastically deformed in the
When the locking portion 16 becomes engageable with, the bending of both of them returns and the locking portion 16 and the locked portion 26 are engaged. In this state, as shown in FIG.
The back surface side of the locking portion 16 of No. 4 is biased toward the upper surface opening portion 24b and pressed so that the locking portion 16 abuts the locked portion 26. Further, the support portion 18 at the base end portion of the insertion piece 14 abuts on the inner edge portion of the opening portion 24 a of the accommodation portion 24 to regulate the position of the male member 10. Therefore, the male member 10
Is urged by the elastic pressing piece 28 while being inserted into the female member 20, and is mounted without rattling.

When the male member 10 and the female member 20 are disengaged from each other, the operating portion 17 is pushed to a position where the locking portion 16 is disengaged from the locked portion 26. Then, the male member 10 tends to be pushed out by the component of the elastic force of the elastic pressing piece 28 in the direction of jumping out from the housing portion 24, and the engagement portion 16 is easily disengaged, so that the male member 10 becomes female. Separate from the member 20.

According to the buckle of this embodiment, the male member 1
It is only necessary to provide the insertion piece 14 and the locking portion 16 at 0, and the width and the length of the male member 10 can be narrowed and the strength of the male member can be increased. In the female member 20, when the male member 10 is inserted, the elastic pressing piece 28 easily elastically deforms and guides the insertion direction, so that the operability is extremely good and the outer shape can be made small. Further, when the locking portion 16 and the locked portion 26 are engaged, the elastic pressing piece 28
Is surely biasing the insertion piece 14 to the engagement position. In particular, the elastic pressing piece 28 is provided on the female member 20 in a cantilevered state, and has a large amount of elastic deformation of the tip portion and high strength.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The buckle of this embodiment is used for a connecting portion of a tire chain, like the buckle disclosed in Japanese Utility Model Laid-Open No. 9307/1992, and a mounting portion 31 such as a rope (not shown) for tightening is attached to the male member 10. The mounting portion 32 is provided on the female member 20. Then, the mounting portions 31 and 32 are provided with insertion holes 33 and 34 such as ropes in the central portion and the position side portions, respectively.

The buckle of this embodiment is required to have a particularly high strength so that the strength of the insertion piece 14 of the male member 10 is increased so that the insertion piece 14 does not elastically deform when mounted, but the elastic pressing piece 28 is inserted. At times, it is easily elastically deformed and bent to facilitate the inserting operation. Moreover, after the insertion, the elastic pressing piece 28 surely engages the locking portion 16 of the insertion piece 14 with the female member 2.
It is urged so as to contact the locked portion 26 of 0. Further, even if the elastic pressing piece 28 has high strength, a large amount of elastic deformation can be obtained, and the reliability can be made high even in a severe environment of use without impairing operability.

Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. In the buckle of this embodiment, the shape of the elastic pressing piece 28 of the female member 20 is changed to form a curved portion 34 that is once curved in the accommodation portion 24 toward the lower surface opening 24c.

According to the buckle of this embodiment, a large amount of elastic deformation of the elastic pressing piece 28 can be obtained, a large amount of elastic deformation can be obtained with high strength, and a greater amount of elastic deformation can be obtained when the male member 10 is mounted. It has low insertion resistance and good operability.

Next, a fourth embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. In the buckle of this embodiment, the elastic pressing piece 28 is provided so as to project from the opening 24a side of the housing portion 24 toward the center of the housing portion 24. In this case, the inclined surface 28b of the elastic pressing piece 28 serves as a guide when the insertion piece 14 is inserted.

According to the buckle of this embodiment, the elastic pressing piece 28 extends in the inserting direction from the front side in the inserting direction, so that the inserting piece 14 can be inserted more easily, and moreover, the locking portion 16 is securely covered. It urges the locking portion 26 side.

Next, a fifth embodiment of the present invention will be described with reference to FIG.
It will be described based on. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The buckle of this embodiment is an elastic pressing piece 28 similar to that of the first embodiment, which has an elastic pressing piece 28 slightly elongated in the direction of the opening 24a, and the lower surface opening 2 of the housing portion 24.
An elastic support piece 36 linearly extending from the side edge portion of the opening 4a of 4c is formed. Elastic support piece 36
Is formed thinly with the female member 20 and is elastically deformable. The elastic support piece 36 extends to a position where the tip of the elastic pressing piece 28 can abut,
When the elastic pressing piece 28 is deformed downward when the insertion piece 14 is inserted, the elastic pressing piece 28 receives the deformation and supports the elastic pressing piece 28 so as to prevent excessive elastic deformation.

The buckle of this embodiment has an elastic pressing piece 28.
The elastic supporting member 36 can reduce the elastic force of the elastic supporting member 36, and can receive the force of a predetermined amount or more by the elastic supporting piece 36, so that the inserting operation can be performed with a light force.

Next, a sixth embodiment of the present invention will be described with reference to FIG.
It will be described based on. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. The buckle of this embodiment has an elastic pressing piece 28 similar to that of the fourth embodiment, and an elastic support piece 38 having a curved portion 34 having the same shape as the elastic pressing piece 28 of the third embodiment. It is provided. The elastic support piece 38 is located immediately below the tip of the elastic pressing piece 28, is integrally formed with the female member 20, and is elastically deformable. When the elastic pressing piece 28 is deformed downward during insertion of the insertion piece 14, the elastic pressing piece 28 receives this and supports it so as to prevent excessive elastic deformation.

The buckle of this embodiment is also attached and detached by the same operation as that of the above-mentioned embodiment, and when attaching and detaching, the inclined surface 28b of the elastic pressing piece 28 serves as a guide when inserting the inserting piece 14 and the inserting operation is easier. In addition, the elastic pressing piece 28 is supported by the elastic supporting piece 38 to prevent abnormal deformation and the like.

The buckle of the present invention is not limited to the above embodiment, and the shapes of the elastic pressing piece and the elastic supporting piece can be set appropriately. Further, the shapes of the locking portion and the locked portion can be appropriately set.

[0026]

According to the buckle of the present invention, the insertion piece of the male member can be made small and have high strength. Moreover,
Even if there is little deformation of the male member at the time of insertion into the female member, the elastic pressing piece largely bends and the insertion operation can be facilitated, and the connected state after insertion is due to the pressing force of the elastic pressing piece. The locking portion is surely engaged with the locked portion.
Therefore, as a whole, the buckle can be small and have good operability and high strength. Also,
Since there is no protrusion such as an elastic piece on the side of the insertion piece, it does not get caught on other members during use and is less likely to be damaged.

[Brief description of drawings]

FIG. 1 is a perspective view of a male member of a buckle according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a state in which a male member and a female member of the buckle of this embodiment are separated from each other.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view of a state in which the male member and the female member of the cross-sectional view taken along the line AA of FIG. 2 are connected.

FIG. 5 is a plan view of the buckle according to the second embodiment of the present invention with the male member and the female member separated from each other.

FIG. 6 is a plan view showing a state in which the male member and the female member of the second embodiment of the buckle of the present invention are connected.

7 is a cross-sectional view taken along the line BB of FIG.

FIG. 8 is a partial vertical cross-sectional view of the female member of the third embodiment of the buckle of the present invention.

FIG. 9 is a partial vertical sectional view of a female member of a fourth embodiment of the buckle of the present invention.

FIG. 10 is a partial vertical cross-sectional view of a female member of a fifth embodiment of the buckle of the present invention.

FIG. 11 is a partial vertical cross-sectional view of the female member of the sixth embodiment of the buckle of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Male member 14 Insertion piece 16 Locking part 20 Female member 24 Housing part 26 Locked part 28 Elastic pressing piece 28a Insertion guide part

Claims (5)

[Claims] 1. A male member (10) attached to one of the members to be connected to each other and a female member (20) attached to the other member, the male member (10) being inserted into the female member (20). Forming an insertion piece (14), and providing a locking portion (16) on the insertion piece (14),
0) into the accommodating portion (2) into which the insert piece (14) is inserted.
4) and a locked portion (26) with which the locking portion (16) of the insertion piece (14) of the male member (10) engages, so that the insertion piece (14) substantially locks. A buckle in which a cantilevered elastic pressing piece (28) whose tip end elastically abuts on a portion opposite to the portion (16) is provided in a protruding manner in the accommodating portion (24) of the female member (20). 2. The elastic pressing piece (28) projects from the base portion (22) of the female member (20) into the accommodating portion (24), and the tip end portion thereof is directed toward the back surface of the accommodating portion (24). The buckle according to claim 1, wherein the buckle is formed by bending toward the insertion guide portion (28a). 3. The elastic pressing piece (28) is accommodated in the accommodating portion (24) from the end opening (24a) side of the accommodating portion (24).
The buckle according to claim 1, which is provided so as to protrude toward the center of the buckle. 4. When the insertion piece (14) is inserted into the female member (20), the elastic pressing piece (28) abuts on the back side of the insertion piece (14) and is deformed. An elastic support piece (3) that elastically supports the back side of the pressing piece (28).
6, 38) is provided, The buckle of Claim 1, 2 or 3. 5. A curved portion (34) curved in a projecting direction is formed at a base end portion of at least one of the elastic pressing piece (28) and the elastic supporting piece (38). , 2, 3 or 4 buckle.