JP3130211B2 - buckle - Google Patents

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 fastener used for connecting a belt, a bag band, and other members.

[0002]

2. Description of the Related Art Conventionally, for example, buckles provided at both ends of a belt are composed of a male member and a female member as disclosed in Japanese Patent Publication No. 2-28324, and an insertion piece projects from the base of the male member. An engaging portion for engagement is provided at the tip of the insert, and a female member is formed with an accommodating portion for the insert and a locked portion, and accommodates the insert for the male member. In some cases, the male member and the female member are connected to each other by engaging with a locked portion. The female member of the buckle is provided with a flexible wall that elastically urges the insertion piece from the back side to the engagement position. This flexible wall is formed integrally with the female member with both ends fixed to the front and rear portions of the housing portion, and the intermediate portion is elastically deformed when the insertion piece is inserted,
Furthermore, even after insertion, the insertion piece is elastically urged to the engagement position.

Further, as disclosed in Japanese Utility Model Laid-Open Publication No. 4-9307, a male member and a female member are provided in the same manner as in the above-mentioned technology, and elastic pieces are provided on the bases on both sides of the insertion piece of the male member. In the connected state, the female member is urged by this elastic piece,
In some cases, the male member is held in an engaged position. Further, as disclosed in Japanese Utility Model Publication No. 63-42811, there has been proposed a female member provided with a tongue piece for biasing and supporting the base end of the insertion piece at the time of insertion.

[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 at the accommodating portion of the female member and is provided in a fixed state at both ends. However, there is a drawback in that the force for urging the insertion piece of the male member is weaker in some cases, and the elastically deformable range is small, so that the operability is poor. Further, when the urging force is increased, the range in which the elastic deformation is possible is further reduced, and the operability is further deteriorated. Further, in the case of Japanese Utility Model Laid-Open No. 4-93307, elastic pieces are provided on both sides of the insertion piece of the male member, so that the size of the male member and the female member increases, and the operability is poor. Was. Further, in order to increase the engagement strength, it is necessary to strengthen the male member and the elastic piece, and there is a problem that the size is further increased. In addition, Jiko 63-4
No. 2811, the tongue is
It also serves as a support and guide for the male member.
It merely held the base of the male member.

The present invention has been made in view of the above-mentioned conventional technology, and provides a buckle in which the engagement between the male member and the female member is reliable, the operability at the time of attachment / detachment is good, the size is small and the strength is high. The purpose is to do.

[0006]

The present invention comprises a male member attached to one of members connected to each other, such as a belt, and a female member attached to the other. The male member is inserted into the female member. A locking portion is provided on the insertion piece, and the female member is engaged with a receiving portion into which the insertion piece is inserted and a locking portion of the insertion piece of the male member. A buckle having a stop portion formed therein, and a cantilever-shaped elastic pressing piece having a distal end elastically abutting on a surface of the insertion piece substantially opposite to the locking portion to protrude into the housing portion.

[0007] The elastic pressing piece protrudes from the base of the female member to the accommodating portion, and a tip end portion thereof is bent toward the back surface of the accommodating portion to form an insertion guide portion of the inserting piece. The elastic pressing piece protrudes from the distal end opening side of the housing toward substantially the center on the insertion track of the insertion piece in the housing. Further, an elastic supporting piece is provided for elastically supporting the back side of the elastic pressing piece in a state where the inserting piece is inserted into the female member and the elastic pressing piece is in contact with the back side of the inserting piece. It is. Further, at least one of the base ends of the elastic pressing piece and the elastic supporting piece is formed with a curved portion which is curved in the projecting direction.

[0008]

According to the buckle of the present invention, when the insertion piece of the male member is inserted into the accommodating portion of the female member, the distal end of the elastic pressing piece elastically contacts the portion of the insertion piece substantially opposite to the locking portion. The engaging portion urges the distal end portion of the insertion piece in the engaging direction so that the locking portion faces the locked portion, thereby ensuring the engagement 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. A buckle according to this embodiment includes a male member 10 made of resin attached to one end of a belt (not shown) and the other end of the belt and not shown. A female female member 2 attached to a mounting piece of a member such as a bag and into which a male member 10 is inserted and engaged.
0. The male member 10 has an insertion piece 14 protruding from the base 12 thereof. 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 slightly backward from a direction perpendicular to the projecting direction. The locking portion 16 has its locking surface 1
6a is formed in a concavely curved shape. In addition,
The locking surface 16a may be formed in a flat or convex shape. Further, from the locking portion 16 to the distal end portion of the insertion piece 14, an operation portion 17 that is pressed down at the time of disengagement is formed. Further, on both sides of the base end of the surface opposite to the locking portion 16 of the insertion piece 14, a pair of support parts 18 integrally projecting from the base 12 of the male member 10 and the base end of the insertion piece 14 are provided.
Are formed. The base 12 is provided with a belt mounting portion 19 through which one end of a belt or the like is inserted.

The female member 20 has an insertion piece 14 of the male member 10.
A receiving portion 24 is formed as an internal space having an opening 24a into which the female member 20 is inserted. An upper surface opening 24b is formed in the receiving portion 24 on the front surface side of the female member 20. The male member 1 is provided on the periphery of the opening 24a of the upper surface opening 24b of the female member 20.
A locked part 26 that engages with the zero locking part 16 is formed. The locked portion 26 is formed in a curved shape according to the shape of the locking surface 16 a of the locking portion 16. This locked portion 26
May be convex or concave or flat. 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 opposite to the upper surface opening 24b is also a lower surface opening 24c. Further, a belt mounting portion 29 is formed on the base 22 opposite to the opening 24 a of the female member 20.

In the accommodating portion 24, an elastic pressing piece 28 protruding toward the center at an angle of approximately 45 degrees from a position near the back surface on the base portion 22 side is provided. The elastic pressing piece 28 is formed into a plate shape having a width slightly smaller than the width of the insertion piece 14 in the accommodation portion 24, and the tip of the elastic pressing piece 28 is engaged with the insertion piece 14 when the insertion piece 14 is inserted. It is elastically in contact with the back side of the portion 16. At the tip of the elastic pressing piece 28, an insertion guide portion 28a is provided, in which the tip of the tip portion is further bent approximately 90 degrees and slightly extends in the direction of the back surface of the housing portion 24, and guides in the engaging direction when the insertion piece 14 is inserted. Have been.

Next, the operation of the buckle of this embodiment will be described below. First, in order to attach the male member 10 to the female member 20, as shown in FIG.
The insertion piece 14 is inserted into 4a. At this time, the tip of the insertion piece 14 is inserted into the insertion guide 28 of the tip of the elastic pressing piece 28.
a, and is pushed upward along the insertion guide portion 28a together with the insertion, and further, the elastic pressing piece 28 is elastically deformed downward. Then, the insertion piece 14 is also
It is inserted while being slightly elastically deformed within the locked portion 26.
When the locking portion 16 becomes engageable, the bending of the two returns, and the locking portion 16 and the locked portion 26 are engaged. In this state, as shown in FIG.
4 is urged toward the upper surface opening 24b on the rear surface side of the locking portion 16 to press the locking portion 16 toward the locked portion 26. The support portion 18 at the base end of the insertion piece 14 abuts on the inner edge of the opening 24 a of the housing portion 24 to regulate the position of the male member 10. Therefore, the male member 10
Is inserted into the female member 20 and is urged by the elastic pressing piece 28 to be mounted without play.

When the engagement between the male member 10 and the female member 20 is released, 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 due to the component of the elastic force of the elastic pressing piece 28 in the direction protruding from the housing portion 24, and the engaging portion 16 is easily disengaged, and the male member 10 becomes female. Move away from 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, the width and length of the male member 10 can be reduced, 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 guides the insertion direction while being elastically deformed, so that the operability is extremely good and the outer shape can be reduced. Further, when the locking portion 16 and the locked portion 26 are engaged, the elastic pressing pieces 28
Are 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 cantilever state, and has a large amount of elastic deformation at the distal end and high strength.

Next, a second embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG. Here, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. The buckle of this embodiment is used for a connecting portion of a tire chain, similarly to the buckle disclosed in Japanese Utility Model Application Laid-Open No. 4-93307, and a mounting portion 31 such as a rope (not shown) for fastening is attached to the male member 10. The mounting portion 32 is provided on the female member 20. The mounting portions 31 and 32 are provided with insertion holes 33 and 34 for ropes and the like at the central portion and the position side portions, respectively.

The buckle of this embodiment is required to have a particularly high strength. The strength of the insert 14 of the male member 10 is increased, and the insert 14 is not elastically deformed at the time of mounting. Sometimes it is easily elastically deformed and bent to facilitate the insertion operation. In addition, after the insertion, the elastic pressing piece 28 ensures that the locking portion 16 of the insertion piece 14
0 to be brought into contact with the locked portion 26. In addition, even if the elastic pressing piece 28 has a high strength, a large amount of elastic deformation can be obtained, and the reliability can be improved even in a severe use environment without impairing the 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 denoted by the same reference numerals, and 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 toward the lower surface opening 24c in the housing portion 24.

According to the buckle of this embodiment, a large amount of elastic deformation of the elastic pressing piece 28 can be obtained, and a large amount of elastic deformation can be obtained with high strength. 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 denoted by the same reference numerals, and description thereof will be omitted. In the buckle of this embodiment, the elastic pressing piece 28 is provided so as to protrude from the opening 24a side of the housing portion 24 toward the center of the housing portion 24. In this case, the slope 28 b 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. It is biased toward 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 denoted by the same reference numerals, and description thereof will be omitted. The buckle of this embodiment is the same elastic pressing piece 28 as that of the first embodiment, and has the elastic pressing piece 28 slightly longer in the direction of the opening 24a.
An elastic support piece 36 linearly extending from the side edge of the opening 4a on the side of the opening 24a is formed. Elastic support piece 36
Is formed in a thin shape integrally with the female member 20 and is provided so as to be elastically deformable. The elastic supporting 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 is formed of an elastic pressing piece 28.
The elastic force can be reduced by a predetermined amount or more and can be received by the elastic support piece 36, and the insertion operation can be performed with a lighter 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 denoted by the same reference numerals, and 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 supporting piece 38 having a curved portion 34 having the same shape as the elastic pressing piece 28 of the third embodiment. Is provided. The elastic supporting piece 38 is located immediately below the tip of the elastic pressing piece 28, is formed integrally with the female member 20, and is provided so as to be elastically deformable. Then, when the insertion piece 14 is inserted, when the elastic pressing piece 28 is deformed downward, the elastic pressing piece 28 is supported 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 embodiment. At the time of attachment and detachment, the inclined surface 28b of the elastic pressing piece 28 serves as a guide when the insertion piece 14 is inserted, and the insertion 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 as appropriate. 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 high in strength. Moreover,
Even if the deformation of the male member at the time of insertion into the female member is small, the elastic pressing piece is largely bent, and the insertion operation can be easily performed.The connection state after the insertion is determined by the pressing force of the elastic pressing piece. This ensures that the locking portion is engaged with the locked portion.
Therefore, as a whole, a buckle that is small, has good operability, and has high strength can be obtained. Also,
Since there is no protrusion such as an elastic piece on the side of the insertion piece, it does not catch on other members during use and is less likely to be damaged.

[Brief description of the 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 of the buckle of this embodiment in which a male member and a female member are separated.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

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

FIG. 5 is a plan view of a buckle according to a second embodiment of the present invention, in which a male member and a female member are separated.

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

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

FIG. 8 is a partial longitudinal sectional view of a female member of a buckle according to a third embodiment of the present invention.

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

FIG. 10 is a partial longitudinal sectional view of a female member of a buckle according to a fifth embodiment of the present invention.

FIG. 11 is a partial longitudinal sectional view of a female member of a buckle according to a sixth embodiment 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 (4)

(57) [Claims] 1. A male member (10) attached to one of members connected to each other and a female member (20) attached to the other member. The male member (10) is inserted into the female member (20). An insertion piece (14) is formed, and a locking portion (16) is provided on the insertion piece (14).
0) has a receiving portion (2) into which the insertion piece (14) is inserted.
And 4) to form engaged portion which the engaging portion of the insert piece (14) of said male member (10) (16) engages the (26), the
In the receiving portion (24) of the female member (20), the insertion piece (1 ) is inserted.
4) A cantilever-shaped elastic pressing piece (28) whose front end is elastically abutted protrudingly from a portion substantially opposite to the locking portion (16), and a distal end of the elastic pressing piece (28). Part is the above-mentioned accommodation part
The insertion guide part (2) is bent toward the back side of (24).
The buckle formed with 8a) . 2. A male member (10) attached to one of the members connected to each other and a female member (20) attached to the other member. The male member (10) is inserted into the female member (20). An insertion piece (14) is formed, and a locking portion (16) is provided on the insertion piece (14).
0) has a receiving portion (2) into which the insertion piece (14) is inserted.
And 4) to form engaged portion which the engaging portion of the insert piece (14) of said male member (10) (16) engages the (26), the
In the receiving portion (24) of the female member (20), the insertion piece (1 ) is inserted.
Projecting substantially the engaging portion (16) tip portions of the opposite side abuts elastically the cantilever-like resilient pressing pieces (28) of 4), the elastic pressing piece (28), The accommodation part (24)
From the tip opening (24a) side to the center of the accommodation portion (24)
Buckle protruding toward . 3. 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 supporting piece (3) for elastically supporting the back side of the pressing piece (28).
The buckle according to claim 1 or 2, wherein ( 6, 38) is provided. 4. A said elastic pressing piece (28) and the elastic support pieces at least one of the proximal end portion (38), claim wherein the curved portion which is curved relative to their projecting direction (34) is formed 3 Buckle described.