JPS631854Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a slider used in a slide fastener, and in particular, a spring with a stop claw is fixed to the slider body at its front end, and its rear end is pressed against the shaft of the handle. The slider is equipped with an automatic stop device in which the stop pawl is inserted into the slider body so that the stop pawl stops the slider when the handle is folded down, and allows the slider to slide when the handle is raised. The purpose of this is to make it easy to manufacture a spring with a stop claw, to make it easy to assemble the spring to the slider body, to ensure a secure attachment, and to maintain the function of the automatic stop device. To provide a slider with an automatic stop device for a slide fastener that can be maintained for a long period of time and exhibits a strong and aesthetic appearance without damaging the plating layer applied to the pull or the slider body when a spring with a stop claw is assembled. There is a particular thing.

The conventional slider of this type was
As described in Publication No. 45449, the slider body and the handle are die-cast or press-molded, and after plating them, they are assembled, and then a spring with a stop claw formed from a leaf spring is installed. The bent and hanging front part of the spring is fitted into a groove provided at the front end of the slider body, and the both sides of the groove are crimped to secure the spring, and the rear part of the spring is pressed onto the shaft of the handle. In addition, a stop claw protruding from the rear portion is inserted into the slider body. The slider with automatic stop device assembled as described above is
When fixing the spring to the plated slider body, both edges of the recessed groove are crimped, so the plating peels off during the crimping process, reducing commercial value and accelerating the formation of rust.
Therefore, in order to solve the above-mentioned drawbacks, a method was proposed in which the spring with the pull and stop claws was assembled before plating the slider body, etc., and then the plating process was performed, but the plating process caused the spring to attach to the slider body. In addition, there was an inconvenience that resistance occurred to the movement of the stop claw, preventing it from functioning normally.

This invention was devised to solve the above-mentioned drawbacks, and is characterized by incorporating a spring with a stop claw into the slider body with a unique configuration.This invention will be specifically explained using an example. The slider body 1 and the pull handle 2 are formed by dust casting or press working as in the conventional ones, and are plated, and the spring 3 with a stop pawl is formed from a plate spring. Further, the slider body 1 has an upper piece 4 and a lower piece 5 that are parallel to each other and are integrally formed at the distal end via a pillar 6, and a pair of left and right handle holding parts 7, 7 are provided approximately at the center of the upper piece 4. is provided protrudingly, and a shaft portion 8 of the pull handle 2 is pivotally supported between both pull handle holding portions 7, 7, so that the pull handle 2 is assembled so as to be slidable in the front-rear direction of the slider body 1. In addition, in the part between both the handle holding parts 7, 7 on the shaft part 8 of the handle 2,
As shown in FIG. 2, a cam portion 9 is formed whose cross section is circular, and a part of the circular arc is cut out. The cutout horizontal portion of the cam portion 9 faces upward. In addition, a through hole 10 is bored at the rear of the upper piece 4 of the slider body 1 at a position rearward from the horizontally suspended shaft part 8 of the handle 2. A vertical hole 11 is bored at the top and bottom until it reaches the piece 5, and the rear wall 12 of the vertical hole 11 is inclined so as to be pushed forward as it descends from the opening of the upper piece 4. A groove 13 is continuously formed in the width direction of the rear wall 12 in the width direction, and a locking part 14 is formed in a step-like manner continuous with the groove 13 at the lower end of the rear wall 12.
is provided. Note that the front wall 15 of the vertical hole 11 is formed in a substantially upright shape.

As shown in FIG. 4, the spring 3 with a stop claw is bent at the middle part in the longitudinal direction of the plate spring, and from the bent part 16, one side is a rear part 17 and the other side is a front part 18.
A bent step part 19 is formed at the end of the rear part 17 to cover the shaft part 8 of the handle 2, and a stop claw 20 protruding into the through hole 10 of the slider body 1 is formed at the end of the bent step part 19. It has been set up. The front part 18 of the spring 3 has a width that allows it to be inserted into the vertical hole 11 of the slider body 1, and the lower end has a groove 1 of the vertical hole 11.
A narrow part 21 that can be fitted into the front part 18 is formed, and is continuous with the narrow part 21 and extends in the longitudinal direction of the front part 18 without being bent in the front-rear direction, and from the narrow part 21. A hook portion 22 formed wide is provided. Furthermore, a rolled groove 24 is formed on the front side of the front portion 18 to increase the mechanical strength of the spring.

The narrowest space between the front and rear side walls 15 and 12 of the vertical hole 11 may be opened slightly larger than the wall thickness of the hook portion 22 of the spring 3 with a stop claw.

Therefore, in order to assemble each of these parts, the fourth
As shown in FIG. 5 and FIG. 6, after the pull handle 2 is pivotally supported on the pull holding portion of the slider body 1, the spring 3 with a stop claw is attached to the upper piece 4 of the slider body 1.
It is lowered from above, and the bent stepped part 19 is placed over the cam part 9 of the shaft part 8 of the pull handle 2, and the stop claw 20 is pushed into the through hole 10, and the front part 18 which is bent and hangs is inserted into the vertical hole 11. Insert inside. Even if the front part 18 is simply inserted into the vertical hole 11, its lower end will only touch the wall surface at the middle part of the inclined rear wall 12, so it will float above the upper part 4 with the punch 23. When the bent part 16 of the spring 3 is pressed and lowered, the inclined rear wall 12 of the vertical hole 11
As the front part 18 of the spring 3 is inserted deeper along
When the hook portion 22 is engaged with the locking portion 14 and the narrow portion 21 is simultaneously engaged with the groove 13 due to the repulsive force of the spring 3, the hook portion 22 is pressed against the rear side wall 12 and the bent step portion 19 is in pressure contact with the shaft portion 8 of the pull handle 2, and the hook portion 22 is locked to the locking portion 14, so that it does not come off and is securely attached.

This invention has the above-mentioned structure, and the stop claw 20 moves up and down in accordance with the sliding movement of the pull handle 2, similar to the conventional one.
The stop claw 20 is pushed into the slider body 1. 8 and 9 show the state when the handle 2 is upright, and the stop claw 20 is floating above the slider body 1, and even if the handle 2 is pushed forward as shown in FIG. is something that rises to the surface. Even when the above operations are performed, the hook portion 22 of the spring 3 remains in pressure contact with the rear wall 12 and retained in the locking piece 14.

As described above, the slider with an automatic stop device for a slide fastener according to this invention presses the rear part of the spring with a stop claw onto the shaft of the handle,
The front part of the spring is inserted into a vertical hole in the slider body, the rear wall of the vertical hole is sloped to form a groove continuous in the vertical direction, and the lower end of the rear side wall is provided with a step-shaped notch continuous to the groove. A stop part is provided, the lower part of the front part of the spring inserted into the vertical hole is fitted into the groove, and a hook part formed following the part of the spring that fits into the groove is locked to the lock part. Since the spring can be assembled by simply pushing it into the slider body without crimping the slider body, even if the spring is attached to the plated slider body, the plated body will not be damaged, and it can be installed inside the vertical hole. This not only improves the appearance but also prevents rust from forming. In addition, since the rear wall of the vertical hole is inclined, a groove is provided, and a locking portion is provided continuously to this groove, it is necessary to bend and form the hook portion that locks into the locking portion of the spring. This is achieved by simply extending the front part of the spring in the longitudinal direction and making it wider than the part that fits into the groove, which reduces the bending process by one step and simplifies the process. This can improve durability. Furthermore, since the hook is extended in the longitudinal direction, the width in the front and rear direction when inserted into the vertical hole of the spring can be made thinner, and the vertical hole can be opened as small as necessary, so the slider The strength of the torso can be increased and the aesthetic appearance can be improved. In addition, since the spring is elastically fixed in two places, the hook part and the bent step part, the effective length of the spring is longer, and the vertical movement of the stop claw is smoother, with less fatigue and durability. It greatly improves the performance.

[Brief explanation of drawings]

Figure 1 is a front view showing a slider with an automatic stop device for slide fasteners according to this invention, Figure 2
The figure is a sectional view taken along the line A-A in Figure 1, and Figure 3 is a cross-sectional view taken along the line A-A in Figure 1.
FIG. 4 is a perspective view showing a state in which the spring with a stop claw is locked in the locking portion
FIG. 5 is a longitudinal sectional view corresponding to FIG. 2, also showing the assembled state, FIG. 6 is a longitudinal sectional view also corresponding to FIG. 3, and FIGS. 7 to 10 are springs when the handle slides. It is a sectional view showing operation of. 1... Slider body, 2... Pull, 3... Spring with stop claw, 4... Upper piece, 6... Pillar, 7
... Pull holding part, 8 ... Shaft of the handle, 9 ... Cam part, 10 ... Through hole, 11 ... Vertical hole, 12 ... Rear side wall, 13 ... Concave groove, 14 ... Locking piece, 17... Rear part of spring, 18... Front part, 19... Bend step, 20... Stop claw, 21... Narrow part, 22
...Hookbe.

Claims (1)

[Scope of utility model registration request] A vertical hole 11 that opens in the upper piece 4 of the slider is bored at the front end of the slider body 1 that pivotally supports the handle 2, and as the rear wall 12 of the vertical hole 11 descends, the side that pivotally supports the handle 2 opens. The rear side wall 12 has a groove 13 formed continuously in the vertical direction, and a groove 13 is formed at the lower end thereof.
A locking portion 14 is provided which is continuous with the step-shaped notch, and the spring 3 with a bent locking claw, which is incorporated into the slider body 1, is connected to the shaft portion 8 of the puller 2 at its rear end.
A stop claw 20 that is pressed upwardly and protrudes from the rear end enters into the slider body 1, and the bent and hanging front part 18 of the spring 3 is inserted into the vertical hole 11, and the front part 18 is inserted into the vertical hole 11. A hook portion that engages the narrow width portion 21 formed at the lower end portion of the groove 13 with the groove 13, extends further from the lower end of the front portion in the longitudinal direction of the front portion 18, and is formed wider than the narrow width portion 21. A slider with an automatic stop device for a slide fastener, characterized in that the locking portion 22 is locked in a state in which it is in pressure contact with the locking portion 14.