JP2594412Y2 - buckle - Google Patents

Description

[Detailed description of the invention]

[0001] The present invention relates to a buckle which is a latching tool used for connecting belt members used for various applications.

[0002]

2. Description of the Related Art Conventionally, buckles provided at both ends of a belt are composed of a plug body and a buckle body as disclosed in, for example, Japanese Utility Model Laid-Open No. 5-51110. It has a pair of insertion legs that project
A locking portion is formed at the tip of the insertion leg portion, and a locked portion to be locked by the locking portion is provided on the buckle body. Further, on both sides of the pair of insertion legs, an operation part for releasing the engagement of the locking part engaged with the locked part in the buckle body is provided with a slight bulge, The main body has an opening through which the operating portion is exposed in the engaged state.

To operate the buckle, the insertion body is inserted from the insertion opening of the buckle main body, and the locking portion of the insertion leg is engaged with the locked portion inside the buckle main body. At this time, the side surfaces of the pair of insertion legs abut against the locked portion in the buckle body with the insertion operation, and the insertion legs elastically deform inside each other. When the plug is pushed in past the contact position between the plug and the locked portion, the elastically deformed plug returns to its original shape, and the locking portion and the locked portion are engaged at that position. Things.

[0004]

In the case of the above-mentioned prior art, the insertion leg is formed linearly and has high rigidity against the force from both sides, so that the operability and the operation portion during the insertion operation are reduced. There has been a problem that the operability when releasing the engagement by pressing is poor. On the other hand, since the flexibility of the insertion leg portion is low, there is a disadvantage that the insertion leg portion is easily broken when an excessive force is applied. Therefore, the conventional buckle described above, when the rigidity is weakened to improve the operability, the engagement force is weakened, and the buckle is more easily broken,
When the strength is increased, there is a contradictory problem that operability is deteriorated.

This invention has been made in view of the above-mentioned prior art, and the engagement between the insertion body and the buckle body is reliable, the operability at the time of attachment / detachment is good, and even an unreasonable force is required. It is intended to provide a buckle that is hard to break.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a plug body attached to one of members connected to each other, such as a belt, and a buckle body attached to the other. A pair of insertion leg portions to be inserted into the projection are projected, and the pair of insertion leg portions are formed in a shape curved inward to each other, and each of the pair of insertion leg portions is provided with a locking portion, and An elongated hole is formed from the base end to the distal end in the protruding direction of each insertion leg, and is formed in a direction perpendicular to a plane including the pair of insertion legs. a housing portion which the difference Komiashi portion insertion port is formed on the end surface is inserted, the locking portion of the difference Komiashi portion forms a be-engaged portion for engaging said slots, said difference Base of inset
It is formed continuously from the end to the tip,
Curved so that the side edges of each plug leg swell outward
The formed buckle.

[0007] The present invention also provides the above-mentioned pair of insertion legs,
Those that engaged portion of Sakomiashi portion abuts against the inside of the locked portion of the buckle main body in engagement with the engaged portion of the buckle main body
This is a buckle provided with a contact portion . In addition, the locking portion is
With the engagement with the locking portion, each of the
A pair of openings that each expose the operation unit to the outside are
Formed on both sides of the vehicle body, and the periphery of this opening is
Large indentation inside each other with respect to the insertion direction of the insertion leg
It is formed in an inclined shape .

[0008]

With the buckle of the present invention, when the insertion leg of the insertion body is inserted into the accommodation portion of the buckle body, the insertion leg is flexibly formed by the curved insertion leg and the elongated hole. It is elastically deformable, and the insertion leg portion inside the long hole is bent and easily bent instead of protruding in the protruding direction, so that the insertion leg portion accommodates the buckle body with relatively light force. Inserted into the part. Also,
When releasing the connection, the insertion leg can be similarly deformed inward by pressing the insertion leg with relatively light force, and the engagement between the locking portion and the locked portion can be easily released. You can do it.
Furthermore, when the insertion part is elastically deformed at the time of insertion of the insertion body into the buckle body due to the contact part provided on the insertion part, the connection between the locking part and the locked part is made. In addition, the insertion leg does not vibrate and is reliably stopped at the engagement position.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention. The buckle of this embodiment is a resin insert 10 attached to one end of a member such as a belt (not shown).
And a resin buckle body 20 which is attached to the other end of the belt or a mounting piece of another member (not shown), and into which the insert body 10 is inserted and connected. The insert 10 is provided with a pair of insert legs 14 projecting from its base 12 and formed symmetrically with each other. On the front and back surfaces of the distal end of the insertion leg portion 14, a locking portion 1 having a locking surface 16a inclined slightly inward from a direction perpendicular to the projecting direction.
6 are provided one by one. A pair of insertion legs 14
Is formed in a curved shape as a whole so as to bulge outward, and is provided with a long hole 17 formed from the base 12 to the distal end in a direction perpendicular to a plane including the pair of insertion legs 14. The side edges 14a of the insertion legs 14 inside the elongated holes 17 are each formed to be curved inward in an arc shape. An operation portion 18 is formed on each of the outer side surfaces of the insertion leg portion 14, and an end edge of the operation portion 18 on the base 12 side is formed in a stepped shape, and a second locking portion 19 is formed. I have.
A concave groove 11 is formed between the operation part 18 at the tip end of the insertion leg part 14 and the locking part 16. In addition, a belt mounting portion 15 for inserting one end portion of a belt or the like is formed on the base portion 12, and a projecting piece 13 protruding in the same direction as these is formed between the pair of insertion leg portions 14. A groove 13a is formed from the distal end of the protruding piece 13 to the proximal end.

The buckle body 20 has a housing 24 having an insertion port 24a into which the insertion leg 14 of the insertion body 10 is inserted.
Are formed, and two pairs of locked portions 26 that engage with the two pairs of locking portions 16 of the insertion body 10 project from the inner surface of the housing portion 24 so as to face each other. The locked portion 26 includes the locking portion 16.
A locking surface 26a is formed in accordance with the shape of the locking surface 16a, and a pair of through holes 2 for forming the locking surface 26a is formed.
2 is formed on the surface of the housing portion 24. The locking portion 16 is provided on both sides of the buckle body 20 with the locked portion 26.
A pair of openings 21 are formed so that each of the operating portions 18 is exposed to the outside in a state in which the operating portions 18 are engaged with the opening. The end of the opening 21 on the insertion port 24a side is a second locked portion 29 that engages with the second locking portion 19 formed at one end of the operation portion 18. Furthermore, the periphery of the opening 21 is
4 is gradually narrowed toward the distal end in the insertion direction. Further, a belt attachment portion 25 through which a belt or the like is inserted is formed at an end of the buckle body 20 opposite to the insertion port 24a. Further, the accommodation unit 24
As shown in FIG. 3, a guide piece 23 protrudes toward the insertion port 24 a and is inserted into a groove 13 a formed in the protruding piece 13. The guide piece 23 facilitates the operation of inserting the insert 10 into the buckle main body 20 and prevents the insert 10 from swinging in the buckle main body 20 after the connection.

Next, the operation of the buckle of this embodiment will be described below. First, in order to mount the insertion body 10 on the buckle main body 20, the insertion leg portion 14 is inserted into the insertion port 24a of the accommodation portion 24 as illustrated. At this time, first, the outer side surface of the operation portion 18 comes into contact with the inner front end portion of the second locked portion 29, and the insertion leg portion 14 is gradually curved inward. Then, by further inserting the insertion body 10, the distal end portion of the insertion leg portion 14 comes into contact with the locked portion 26 in the accommodation portion 24, and the locked portion 26 is recessed in the insertion leg portion 14. Groove 1
1, the insertion legs 14 elastically deform inward each other as they are inserted. Then, when further pushed, the locked portion 26 separates from the locking portion 16, the elastic deformation of the insertion leg portion 14 is restored, and the locking surface 16 a and the locked surface 26 a face each other,
The connection between the insert 10 and the buckle body 20 is completed. Further, at this time, the second locking portion 19 and the second locked portion 29
They face each other and are securely locked to each other.

When the connection is released, the operation unit 18
Is pressed from both sides, the engagement between the locking portion 16 and the locked portion 26, and the second locking portion 19 and the second locked portion 29
Is disengaged, and the insertion piece 10 can be pulled out. At this time, since the opening 21 of the buckle main body 20 is greatly constricted in the distal direction of the insertion body 10, the operation part 18 is inevitably formed.
, And the engagement side can be easily released.

According to the buckle of this embodiment, the plug 1
The zero insertion leg portion 14 is easily bent elastically easily by the long hole 17, and in particular, the inner side edge portion 14a of the insertion leg portion 14 is curved so as to bulge outward. A force in the compression direction acts on the side edge 14a, and the side edge 14a
Easily bends to absorb the force, and the plug leg 14
This facilitates the insertion and disengagement operations, and is hardly damaged by external force. Further, when a force is applied in a direction to separate the insert body 10 and the buckle main body 20 from each other, the inclination of the engaging surface between the locking surface 16a and the locked surface 26a causes Are applied with component forces in the engagement directions facing outward. Further, the side edge portion 14a of the curved insertion leg portion 14 tries to straighten and pushes the locking portion 16 outward in the engagement direction. As a result, the locking portion 16 and the locked portion 26 can obtain an engagement state in which the connection force is extremely strong . In addition , due to the constriction of the opening 21, the distal end side of the operation portion 18 is pressed at the time of disengagement, so that the disengagement operation can be performed very easily. Further, since the insertion body 14 is inserted so as to be gradually curved, the force required for the insertion operation may be small, and the insertion is easier.

Next, a second embodiment of the present invention will be described with reference to FIGS.
Explanation 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 configured such that the locking portion 16 is engaged with the locked portion 26 of the buckle body 20 inside the locking portion 16 at the distal end of the insertion leg portion 14, This is provided with two pairs of contact portions 30 that contact the inner side surface of the locked portion 26. The contact portion 30 is formed continuously from the locking portions 16 on both the front and back surfaces of the insertion leg portion 14.

In the buckle of this embodiment, when the insertion body 10 is inserted into the buckle body 20, the insertion leg portion 14 is elastically deformed, so that the locking portion 16 and the locked portion 26 are connected. At this time, in a state where the deformation of the insertion leg portion 14 is
0 comes into contact with the locked portion 26, and the insertion leg portion 14 does not vibrate, so that the insertion leg portion 14 is reliably stopped at the engagement position, and the wearing feeling is good.

Incidentally, the buckle of the present invention is not limited to the above-mentioned embodiment, and the shapes of the insertion leg portion, the locking portion and the locked portion can be appropriately set. The position can be appropriately set, and for example, a plurality of long holes may be vertically connected.

[0017]

According to the buckle of the present invention, an elongated hole is formed in the insertion leg portion of the insertion body, and the insertion leg portion is curved, so that the insertion leg portion is easily bent and the engagement is performed. Is certain,
Easily elastically deforms against external force, hardly breaks,
It solves the conflicting problems of engagement strength and operability at once. Further, due to the long hole of the insertion leg portion, the insertion leg portion is more likely to bend and the engaging force does not decrease. In particular,
Locks when the side edge of the curved insertion leg tries to straighten
The part is pushed outward in the direction of engagement. Due to this, this locking
The part and the locked part obtain an engagement state with extremely strong coupling force.
be able to. Further, by the constriction of the opening of the buckle main body, it is possible to inevitably press the front end side of the insert body which is easy to operate at the time of operation, and the operability is further improved. In addition, a contact part is provided on the insertion leg part,
Vibration at the time of wearing is suppressed, and a good feeling of wearing can be obtained.
Things.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the buckle of the present invention.

FIG. 2 is a plan view showing a state where a buckle insertion member and a buckle main body of this embodiment are separated.

FIG. 3 is a partially cutaway plan view showing a state where the buckle insert and the buckle main body of this embodiment are connected to each other.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a perspective view of the insert of the second embodiment of the buckle of the present invention.

FIG. 6 is a plan view showing a state where a buckle insertion member and a buckle main body of this embodiment are separated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Insert body 14 Insert leg part 14a Side edge part 16 Lock part 17 Elongate hole 20 Buckle main body 21 Opening part 24 Housing part 24a Insert port 26 Locked part 30 Contact part

Claims (3)

(57) [Scope of request for utility model registration] 1. A buckle body (20) attached to one of members connected to each other and a buckle body (20) attached to the other member. The buckle body (20) is attached to the insert body (10). ), And a pair of insertion legs (14) which are curved inwardly to each other, a locking portion (16) provided on the pair of insertion legs (14), and each of the insertion legs A slot (17) formed from the base end to the tip of (14) and perpendicular to a plane including the pair of insertion legs (14);
0), an insertion portion (24a) is formed on one end surface and the accommodation portion (24) into which the insertion leg portion (14) is inserted, and a locking portion (16) of the insertion leg portion (14). ) Forms a locked portion (26) with which the long hole (17) is formed continuously from the base end to the front end of the insertion leg (14). ), The side edges (14a) of the insertion legs (14) are formed so as to be curved so that their respective intermediate portions bulge outward, and the pair of insertion legs
(14) is relatively elastically deformable from outside to inside
The locking portion (16) is provided at the locked portion (2).
6) In contrast, each of the insertion legs (14) is
A buckle, wherein the buckle is engaged after being elastically deformed and returned to the outside . 2. A state in which the locking portion (16) of the insertion leg (14) is engaged with the locked portion (26) of the buckle body (20) on the pair of insertion legs (14). The buckle according to claim 1, wherein a contact portion (30) is provided to abut on an inner side surface of the locked portion (26) of the buckle body (20). 3. The locking portion (16) is connected to the locked portion (2).
In a state engaged with the buckle body (20), the pair of openings (21) formed in the insertion leg (14) and exposed to the outside, respectively, are formed on both sides of the buckle body (20). 2. The peripheral portion of the opening (21) is formed in a shape that is greatly constricted inward with respect to the insertion direction of the insertion leg (14). 3. Or the buckle according to 2.