JP2503686Y2 - Grasping part locking structure - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention has a grip on the core side.
The present invention relates to a locking structure suitable for attaching .

[0002]

2. Description of the Related Art FIG. 10 is a sectional view of an essential part showing an example of a pull tab of a conventional zipper slider using this type of locking structure. In the figure, the structure of the pull tab 50 is such that a grip 52 made of resin is attached to a core member 52 having an engaging portion 51 rotatably engaged with a slider body (not shown) at one end.
3 is attached. And this grasping section 5
When attaching 3 to the core material 52, one stopper piece 55 is commonly attached to a pair of locking pieces 56 protruding to the opposite surface side through a window hole 54 formed in the other end side of the core material 52. Then, the stopper piece 55 is attached so as to prevent it from coming off. More specifically, the pair of elastically deformable locking pieces 56 are integrally provided on the lower surface of the grasping portion 53,
Further, a locking claw 57 is formed at the tip of each locking piece 56 so as to project outward. On the other hand, the stopper piece 55 has an engaging hole 58 penetrating in the central portion and is formed in a ring shape having an outer diameter dimension larger than that of the window hole 54.

In order to attach the grasping portion 53 to the core material 52, first, each locking piece 56 of the grasping portion 53 is projected from one surface side of a part of the core material 52 through the window hole 54 to the opposite surface. . Next, the engaging holes 58 are made to correspond to the pair of locking pieces 56 projecting from the surface on the opposite side of the core material 52, and the stopper piece 55 is stronger toward the grasping portion 53 side than the surface on the opposite side of the core material 52. Press down. Then, the locking claw 57 of each locking piece 56.
The pair of locking pieces 56 are elastically deformed and bent inward until they have passed through the engaging holes 58, and are inserted into the engaging holes 58. Further, when the locking piece 57 has finished passing, it is self-elastically restored, the locking claw 57 engages with the surface on the opposite side of the stopper piece 55 and is prevented from coming off, and the grasping portion 53 is attached to the core material 52. FIG. 4 shows this state.

[0004]

However, in the above-described conventional structure, when a lateral twisting force is applied to the locking piece 56 in the engaged state, the locking piece 56 moves inward. It bends and the engagement by the locking claw 57 is easily disengaged.
Therefore, there is a problem that the reliability is low.

The present invention has been made in view of the above problems, and its purpose is to attach the grasping portion to the core side.
In other words, it is an object of the present invention to provide a locking structure of the grasping portion that can increase the locking holding force and improve reliability.

[0006]

Means for Solving the Problems The present invention for achieving the above object, when attaching the grasping unit on the core material side, grip the bunch
A locking piece with a tip locking claw is formed on the
From the front side, the locking piece is inserted into the window hole provided in the core material
It is projected on the back side of the core material and its locking piece is projected.
For attaching a stopper piece with an engaging hole at the tip
In the locking structure of the grasping portion to be more retaining, the engagement
The stop piece is provided on the lower surface of one end side of the grasping part,
Under the grasping part when inserted into the window hole and the engagement hole
Move the core material and stopper piece between the surface and the locking claw
While it is impossible to pinch it, the engaging hole is
Insert the locking piece into the center of the
The engaging piece is provided in a size as large as possible , and when the engaging piece is inserted into the engaging hole, the engaging claw is engaged with the engaging piece until the engaging claw engages with the surface on the rear surface side of the stopper piece. Pressed and run away,
In which the locking piece in a direction in which the locking pawl is disengaged to return to the engagement hole to be engaged has a resilient swinging piece for preventing the movement.

[0007]

According to this structure, when the locking claw is completely engaged with the back surface side of the stopper piece , the core is provided between the locking claw and the lower surface of the grasping portion.
When the material and stopper piece are caught immovably
Also, elastic movement of the locking piece in the direction in which the locking claw is released
Since the moving piece forcibly blocks it, make sure that the grasping part
Even if a twisting force is applied to the engaging piece , the engaging piece is bent and transferred, and is not separated from the peripheral edge of the engaging hole.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 3 show a grasping unit according to the present invention.
1 shows an example of a zipper slider to which the locking structure of FIG. 1 to 3, the pull tab 2 attached to the slider body 1 includes a core member 3 and a grip portion 4.
The grasping portion 4 is fixed to the core material 3 by the stopper piece 5.

More specifically, the core material 3 is made of a metal plate such as a stainless steel material which is hard to rust, or a hard resin.
An engaging portion 6 that engages with the slider body 1 is provided on one end side, and a locking piece that penetrates vertically is provided on the other end side.
A rectangular window hole 7 having a size into which 8 can be loosely inserted is provided. The window hole 7 is not limited to the rectangular shape and may be a circular shape. The grasping portion 4 is formed of a synthetic resin material in a substantially plate shape, and is made thicker than the core material 3 so as to be easily grasped. Further, as shown in detail in FIG. 3, a pair of elastically deformable locking pieces 8 are integrally provided on the lower surface on the one end side, and each locking piece 8 has a distal end portion of the main body portion 8a. The locking claw 9 is formed so as to bulge outward from the side surface of the body portion 8a. The tip portion of each locking piece 8 is formed as an inclined surface 10 that faces inward as it goes to the tip side. The stopper piece 5 is formed of a synthetic resin material in a disk shape, and an engaging hole 11 is formed in the center thereof. 4 and 5 show this stopper piece 5
Is shown as a single item. The outer dimension of the stopper piece 5 is formed to be sufficiently larger than the window hole 7 of the core material 3, and the inner diameter dimension of the engaging hole 11 is set to each locking piece 8.
It is formed to be approximately equal to the dimension T (see FIG. 3) between the outer surfaces of the main body 8a. In addition, the stopper piece 5 has a cantilevered elastic rocking piece 1 that crosses the substantial center of the engaging hole 11.
2 are integrally provided so as to be elastically deformable in the vertical direction, and the width dimension of the elastic rocking piece 12 is substantially equal to the dimension t (see FIG. 3) between the inner surfaces of the main body 8a of each locking piece 8. Has been formed.

FIG. 6 shows a method of attaching the grasping portion 4 to the core material 3. Therefore, in the zipper slider shown in FIGS. 1 to 3, a method of attaching the grasping portion 4 to the core material 3 will be described with reference to FIG. First, the pair of locking pieces 8, 8 of the grasping portion 4 are attached to the window hole 7 larger than the upper surface side of the core material 3.
It is loosely inserted inside and protruded to the lower surface side . Then, FIG. 6 (a)
As shown in FIG. 3, the elastic rocking piece 12 is positioned between the pair of locking pieces 8 and 8 which are projected on the lower surface side of the core material 3. The engaging pieces 11 are made to correspond to each other, and the stopper piece 5 is strongly pressed against the grasping portion 4 side. Then, the pair of locking pieces 8 and 8 come into contact with the elastic rocking piece 12,
While pressing the elastic rocking piece 12, the pair of locking pieces 8, 8 is bent and deformed inward by the engagement between the inclined surface 10 and the hole edge of the engaging hole 11, and the elastic rocking piece 12 is engaged with the engaging hole. Each pushing piece 8 is inserted into the engaging hole 11 while being pushed out from inside. FIG. 6B shows a state in the middle of this.
Further, the stopper piece 5 is pressed against the grasping portion 4 side,
When the locking claw 9 of each locking piece 8 is projected to the back side of the stopper piece 5, the locking piece 8 is elastically restored and opens outward.
Then, the locking claw 9 is provided on the rear surface side of the stopper piece 5 and the engaging hole 1
1 is engaged with the peripheral edge portion of 1, and a pair of locking pieces 8,
The elastic rocking piece 12 that has been bent and pushed out to the opposite surface side of the stopper piece 5 by 8 returns to the engaging hole 11 by self-returning, and this elastic rocking piece 12 causes the pair of locking pieces 8, 8 and 8 are abuttingly arranged on the side surface of the main body portion 8A of each locking piece 8, whereby the attachment is completed. FIG.6 (c) shows
This state is shown. That is, in this state, the locking claws 9 are provided on the peripheral portion of the engagement hole 11 on the back surface side of the stopper piece 5.
Are engaged and are prevented from coming off. In addition, in this state, the engagement
The core material 3 and the stopper are provided between the retaining claw 9 and the lower surface of the grasping portion 4.
-Since the piece 5 is immovably sandwiched and the elastic rocking piece 12 is inserted between the pair of locking pieces 8 and 8 , the engaging claw 9 is temporarily engaged with the engaging hole 11. Even if the locking piece 8 receives an external force to move in the direction of disengagement, the locking piece 8 collides with the elastic rocking piece 12 and moves unless the elastic rocking piece 12 is removed from between the pair of locking pieces 8, 8. I can't. As a result, reliable attachment can be performed.

FIG. 7 shows another embodiment of the zipper slider to which the grasping portion locking structure according to the present invention is applied. 7, the same reference numerals as those in FIGS. 1 to 3 denote the same parts as those in FIGS. 1 to 3. In FIG. 7, the pull tab 22 includes the core member 3 and the grasping portion 24,
The grasping portion 24 is fixed to the core material 3 with a stopper piece 25.

The grasping portion 24 is made of a synthetic resin material in a substantially plate shape, and is made thicker than the core material 3 for easy grasping. Further, a single shaft-shaped locking piece 26 is integrally provided on the lower surface at one end side of the grasping portion 24. In addition, a locking claw 27 bulging outward from the side surface is formed on the side surface of the body portion 26a at the tip portion of the locking piece 26. The tip portion of the locking piece 26 is formed as an inclined surface 28 that faces inward as it goes to the tip side. The stopper piece 25 is made of a synthetic resin material and has a disk shape, and has a substantially half-moon shaped engaging hole 2 at the center.
9 is formed. 8 and 9 show the stopper piece 25 as a single piece. The outer diameter of the stopper piece 25 is formed to be sufficiently larger than that of the window hole 7 of the core member 3, and the inner diameter of the engaging hole 29 is received without the main body portion 26a of the locking piece 26 moving. It is formed in a size that allows it. In addition, at the center of the stopper piece 25, the slit 30 is formed continuously from the engagement hole 29.
Is provided, and the engagement hole 2 is formed by the slit 30.
The cantilevered elastic rocking piece 31 adjacent to 9 is formed.

Next, a method of attaching the grasping portion 24 to the core material 3 will be described. First, the locking piece 26 of the grasping portion 24 is loosely inserted into the window hole 7 larger than the upper surface side of the core material 3 and protruded to the lower surface side . Next, the engaging hole 29 is made to correspond to the locking piece 26 protruding on the lower surface side of the core material 3, and the stopper piece 2
5 is strongly pressed to the grasping portion 24 side. Then, the locking piece 2
The tip of 6 abuts on the elastic rocking piece 31, and the elastic rocking piece 3
While pushing 1 to bend it, it is inserted into the engagement hole 29. The locking claw 27 at the tip of the locking piece 26 is projected to the back surface side of the stopper piece 25, and the locking claw 27
Is engaged with the peripheral edge of the engaging hole 29, the stopper piece 25
Elastic rocking piece 31 that was pushed out by being bent to the back side of the
Returns to the engaging hole 29 by self-elasticity. Then, this elastic rocking piece 31 is abuttingly arranged on the side surface of the main body portion 26A of the locking piece 26 on the side opposite to the locking claw 27, whereby the mounting is completed. FIG. 7 shows this state. In this state, a core is provided between the locking claw 27 and the lower surface of the grasping portion 24.
The material 3 and the stopper piece 25 are immovably sandwiched.
At the same time, the locking piece 26 moves from the periphery of the engaging hole 29 to the locking claw 2
Even if 7 tries to move in the direction of coming off, this main body 26
The elastic oscillating piece 31 positioned at the position of A blocks the movement of the elastic oscillating piece 31 and cannot move unless the elastic oscillating piece 31 is removed. As a result, reliable mounting can be performed.

[0014]

[Effect of the Invention] As described above , the grasp of the present invention
According to the locking structure of the part, when the locking claw is completely engaged with the back surface side of the stopper piece , the core member is inserted between the locking claw and the lower surface of the grasping part.
And the stopper piece is sandwiched immovably,
The elastic rocking piece prevents the locking piece from moving in the direction in which the locking claw comes off.
Since forcibly prevented surely the grasping portion attached by
It is, even if this analogy prying force or the like to the locking piece is added, also eliminated to deviate from the peripheral edge of the engagement hole by moving flex.
As a result, the engagement holding force is increased and the reliability is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing an embodiment of a zipper slider to which a locking structure according to the present invention is applied.

FIG. 2 is a perspective view of the slider shown in FIG.

FIG. 3 is an enlarged cross-sectional view of a main part of the slider shown in FIG.

FIG. 4 is a top view of a single stopper piece used in the slider shown in FIGS. 1 to 3;

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a view for explaining the operation of the same locking structure shown in FIGS. 1 to 3;

FIG. 7 is an exploded perspective view of essential parts showing another embodiment of the zipper slider to which the locking structure according to the present invention is applied.

8 is a top view of a single stopper piece used in the slider shown in FIG.

9 is a sectional view taken along the line BB of FIG.

FIG. 10 is a cross-sectional view of essential parts showing an example of a pull tab in a zipper slider to which a conventional locking structure is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Slider body 2 ... Puller 3 ... Core material 4 ... Grasp part 5 ... Stopper piece 7 ... Window hole 8 ... Locking piece 9 ... Locking claw 11 ... Engaging hole 12 ... Elastic rocking piece 22 ... Puller 24 ... grasping part 25 ... stopper piece 26 ... locking piece 27 ... locking claw 29 ... engaging hole 31 ... elastic rocking piece

Claims (1)

(57) [Scope of utility model registration request] 1. When the grasping part is attached to the core side,
A locking piece with a tip locking claw is formed in the grasping part in a protruding manner,
The locking piece is inserted into a window hole provided in the core material so that the front surface side
From the core material to the back side of the core material,
Attach a stopper piece with an engaging hole to the protruding tip.
In the locking structure of the grasping portion that is prevented from coming off by the above, the locking piece is provided on the lower surface at one end side of the grasping portion.
It is grasped in the state that it is inserted in the window hole and the engagement hole
Between the lower surface of the portion and the locking claw and the stopper piece
While holding the stopper so that it cannot move, the engaging hole has a front surface and a rear surface at the approximate center of the stopper piece.
Provide the locking piece with a size that allows
When the locking piece is inserted into the engagement hole, the locking claw is pushed by the engagement piece until it is engaged with the surface of the stopper piece on the rear surface side, and the engagement piece is released and engaged. An engaging structure for a grasping portion, comprising: an elastic rocking piece that returns to the inside of the engaging hole and prevents the engaging piece from moving in a direction in which the engaging claw is released.