JPS6018680Y2 - Coil spring latching device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coil spring hooking device.

Conventionally, the work of tightening coil springs has been done using tweezers, long-nosed pliers, etc.

Then, hold the arc part of the end ring of the coil spring with the flat part of the tip of tweezers or radio pliers,
The spring was attached by twisting the entire coil spring around the neck and inserting it into a hole or hooking it into a groove in a mechanical component to be attached.

When working with such spring hooks, the arcuate part of the tip ring of the coil spring is held down with tweezers or the flat part of the tip of radio pliers, so the tip ring of the coil spring may be deformed or the tweezers, needles, etc. There were various drawbacks such as the flat part at the tip of the radio pliers and the spring hook that did not come off properly afterward.

The present invention has been proposed in view of these points, and provides a device for preventing the coil spring from hanging, in which the spring hook of the coil spring stably supports the end ring of the coil spring during work, and the spring hook can be easily removed later. It is.

The present invention will be explained below according to the drawings.

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A of the same embodiment, and Fig. 3 is a diagram showing a specific example of use of the hooking device of the present invention. be.

In the figure, reference numeral 1 denotes a cylindrical body having a hole 15 of a predetermined length along the axial direction around the periphery, a surface 16 at one end in the axial direction having a square opening 4, and a surface at the other end. 17 is closed.

A support member 2 is provided on the surface 16 at one end and protrudes by a predetermined amount perpendicularly to the surface.

Further, a coil spring 10 is arranged on a surface 17 within the cylindrical body 1.

One end of a rod-shaped operating bar 6 having an operating section 5 that projects vertically from a hole 15 and is movable in the axial direction within the hole 15 is inserted into the coil spring 10 by an amount regulated by a spring holding section 9. .

At the other end of the operating bar 6, as shown in FIG. 3, a hooking member 3 whose one tip is curved into a hook shape cooperates with the support member 2 to hook the tip ring 13 of the coil spring 18. The other end is rotatably fixed.

8 is a projection fixed within the cylindrical body 1 that guides the guide edge 7 of the locking member 3.

This locking member 3 can be freely projected or inserted from the opening 4.

Now, the operation will be explained with reference to FIG.

In the latch device shown in the figure, in a normal state, the latch member 3 is regulated by the protrusion 8 and its own guide edge, and opens in the direction shown by arrow C with respect to the axial direction of the main body 1. .

This is because the surface 7 of the latching member 3 facing the protrusion 8 is a slope that approaches the protrusion 8 as it goes inward from the protrusion 8, and the operation bar 6 is supported by the coil spring 10. When returned, the slope 7 abuts against the protrusion 8,
The latching member 3 is opened in the direction of arrow C.

Now, when the operating portion 5 is moved inside the hole 15 in the axial direction of the cylindrical body 1, that is, in the direction shown by arrow B, the coil spring 10 is biased so as to be able to return.

At this time, the hooking member 3 is inserted into the opening 4.

In this operation, the tip ring 13 of the coil spring 18 is hooked onto the hooked tip of the hooking member 3, and the connection (middle) portion between the tip ring 13 and the springy coil portion 14 is connected to the support member 3. The end ring 13 of the coil spring 18 can be bent around the neck by the locking member 3 by loosely fitting into the groove of the coil spring 18 and performing the above-described operation.

When this operation is released, the coil spring 18 returns to its original state due to the spring properties of the coil portion 14.

At this time, the latching member 3 is removed from the tip ring 13 of the coil spring 18 in a direction perpendicular to the return direction of the spring due to the slope 7 abutting against the protrusion 8.

The tip ring 13 of the coil spring 1B can be hooked into the desired hole 12 of the mechanical component by operating the hooking member 3 in the direction B in FIG. 1, that is, in the direction C-+D in FIG. This can be done by twisting the tip ring 213 with respect to the coil part 14 and bending it around the neck, and using the repulsive force when the twisting and bending are released.

Therefore, by carrying out the above-described operation, the tip ring 13 of the coil spring 18 can be hooked into the hole 12 of the mechanical component 11, for example.

In addition, it is ensured that the slope 7 of the hanging member 3 and the protrusion 8 collide with each other, and that the hooked tip of the hanging member 3 and the tip ring 13 of the coil spring 18 are hooked (engaged) to ensure reliability. In order to increase this, it is preferable to provide the locking member 3 with a spring that always urges the locking member 3 in the direction of the protrusion 8 with a predetermined force.

This can be distantly achieved, for example, by providing a torsion spring in the shaft bearing portion where the locking member 3 is rotatably supported on the operating lever 6.

Specifically, the intermediate spiral part of the torsion spring is inserted into the shaft of the bearing part, and both ends of the torsion 7cf spring are respectively engaged with the latch member 3 and the operating lever 6, so that the biasing force of the torsion spring is applied. The stop member 3 is always rotated and urged in the direction of the projection 8 around the axis of the bearing part.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A of the same embodiment, and FIG. 3 is a diagram showing a specific example of use of the same embodiment. 1... Cylindrical body, 2... Support member, 3.
...Latching member suitable as a moving member, 4...
...Opening, 5゜6.15...Operating means, 10
...Biasing member.

Claims (1)

[Claims for Utility Model Registration] A cylindrical body having an opening at one end, and a tip ring and a coil portion of a coil spring that is arranged to protrude by a predetermined amount from one end of the cylindrical body that has the opening, and is not hooked. a support member having a tip formed so as to be able to press the neck between the cylinders; an operation bar housed so as to be movable back and forth along the longitudinal direction of the cylindrical body; a biasing member that biases the operating bar toward the opening; an operating means that moves the operating bar against the biasing member;
The other end protrudes from the inside of the cylindrical body through the opening to the tip of the support member, and the tip of the other end has a hook shape that allows the hook to be engaged with the tip ring of the coil spring. a locking member; and a protrusion that abuts an edge of the locking member along the longitudinal direction of the cylindrical body inside the drop-shaped body on the opening side and is fixed within the cylindrical body, When the operation bar is moved toward the opening side by the biasing member, this movement moves the tip of the other end of the locking member in a direction perpendicular to the longitudinal direction of the cylindrical body, and When the operation bar is moved by the operation means in a direction opposing the biasing member, the tip of the other end of the hooking member is moved so as to be parallel to the tip of the support member. A device for locking a coil spring, characterized in that the shape of the edge of the locking member that comes into contact with the protrusion is set.