JPS5813151Y2 - spring - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in springs.

As is well known, springs are used for various purposes.

For example, as shown in FIG. 1, in an automobile's valpron car mechanism, a bracket 2 is attached to a valpron car shaft 1 at a predetermined interval, and a coil spring is used to press one side of a rocker 3 onto the bracket 2. 4
is used.

Now, in order to assemble the Valpron car mechanism with this structure,
Every time the valve rocker shaft 1 is inserted into the plastic shaft 2, the length car 3 and the coil spring 4 have to be inserted into the valve rocker shaft 1 as a pair and installed.

In this way, the next length car 3 must be installed while inserting and compressing the coil spring 4 from the end of the valve rocker shaft 1, which is very troublesome and has the drawback of poor assembly workability.

The present invention was made in view of the drawbacks of the above-mentioned prior art.
It is an object of the present invention to provide a spring that can be easily and quickly attached to a shaft, etc.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

Fig. 2 shows an embodiment of the spring according to the present invention, in which a is a front view, b is a plan view, C is a side view, Fig. 3 is a perspective view, and Fig. 4 is a perspective view.
The diagram is between developments.

In addition, in FIG. 4, a two-dot chain line indicates a bent portion.

First, the spring plate material is pressed out as shown in FIG.

A flange portion 11 is formed at the upper and lower ends, and between the upper and lower flange portions 11 there is a remaining thickness portion 1 in the center from the left and right side ends toward the center.
2, and second grooves 15 are provided between the grooves 13 at equal intervals so as to have remaining flesh portions 14 at the left and right ends.

As shown in FIGS. 2 and 3, the grooves 13 and 15 are bent into an arc shape to form a circular arc portion 17 such that the left and right ends form a constant open portion 16, and the grooves 13 and 15 are further opened. Part 16
The end portion of the guide portion 18 is bent outward in the direction opposite to the arc portion 1γ.

Further, the upper and lower ends are bent to the outside of the circular arc portion 1γ to form a flange portion 11.

It is then heat treated to give it a spring function.

In this way, the circular arc portion 1γ is formed so as to have the open portion 16 on the outer periphery along the axial direction, and the open portion 1 is formed in the circular arc portion 17.
6, a plurality of first grooves 13 are formed along the arcuate portion 11 so as to have a remaining thickness portion 12 in the center, and the first grooves 13 are
The arcuate portion 1T has the remaining flesh portion 14 in the open portion 16 between
Since the second grooves 15 are formed along
The opening side can be compressed by the width of the plurality of I-th grooves 130, and functions as a compression spring.

When installing such a spring on a shaft, there should be an open part 1 on the outer periphery of the shaft.
It can be easily installed by pressing the parts 6 together.

Therefore, when the spring according to the present invention is used in a valve pronger mechanism as shown in Fig. 1, only the plakeft 2 and the pronger 3 are inserted into the valve rocker shaft 1 in advance, and the spring is simply inserted into the valve pronger mechanism after the final positioning adjustment. Assembly is completed by simply attaching it from the outer periphery of the linker shaft 1.

Furthermore, when the arcuate portion 1γ is curved, if its diameter is made small, that is, the open portion 16 is made narrower, the shaft 1
After being inserted into the shaft 1, it comes into close contact with the shaft 1, and there is no rattling, making it effective for use.

Incidentally, in the above embodiment, a case where the spring material is used is explained, but it may be formed from a resin material as shown in FIGS. 2 and 3.

Further, the spring according to the present invention is not limited to the valve proncar mechanism, but can be used for various purposes as a compression spring generally attached to a shaft.

As is clear from the above description, the spring according to the present invention can be easily and quickly attached to a shaft or the like.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional valve pronger mechanism using a spring, Fig. 2 shows an embodiment of the spring according to the present invention, a is a front view, b is a plan view, C is a side view, and Fig. 3 is a perspective view, and FIG. 4 is a developed view. 12...Remaining wall portion, 13...First groove,
14...Remaining wall portion, 15...Second groove,
16...Open part, 1γ...Circular arc part.

Claims (1)

[Scope of utility model registration request] A plurality of first grooves are formed in an arc shape with an open part at the outer periphery along the axial direction, and a plurality of first grooves are formed in the arc part so as to have a remaining flesh part in the center part along the arc part from the open part. Prestigious,
A spring characterized in that second grooves are formed along the arcuate portions so as to have residual thickness on the open side between the first grooves.