JPH082509Y2 - Clip for laminated leaf spring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a clip for a laminated leaf spring that binds laminated leaf springs and holds the leaf springs in a laminated state so as to have an effective spring action as a laminated leaf spring. In particular, the present invention relates to a clip body which is provided with a spring action to buffer a lateral displacement load of each leaf spring due to a rebound load of a laminated leaf spring, thereby preventing breakage of a clip body and a clip bolt.

[Conventional technology]

In this type of laminated leaf spring clip, as a conventional one, the standing piece portions of the clip along both sides of the laminated leaf spring are bent and extended at right angles to the corner portions of the base portion,
A clip device for a stacked leaf spring is known in which each standing piece is fastened by a clip bolt and lateral deviation of the leaf spring due to rebound load of the stacked leaf spring is prevented by each standing piece of the clip (for example, actual open shovel). 51-96161).

[Problems to be solved by the device]

In the conventional clip device for a leaf spring, the upright strip portions of the clip along both sides of the flat leaf spring are bent and extended at right angles to the corner portions of the base portion, and the clip bolts are provided between the upright leaf portions. Since it is fastened by each, the lateral displacement load of each leaf spring due to the rebound load of the laminated leaf spring is received by each standing piece, but the load acting on each standing piece is pulled directly to the clip bolt. Since it acts as a load, there is a problem that the clip bolt will be damaged by the rebound load of the leaf springs over time, and the lateral displacement load of each leaf spring that acts on each standing piece is a bending load against each standing piece. Since the corners at the base of each standing piece are bent at a right angle, the bending stress generated in each standing piece is bent at a right angle at the base of each standing piece. Stresses concentrated on the corner portion, the clip by rebound load in time of the leaf spring has a problem that causes damage to the corners at the base of each upright piece.

The present invention solves the above problems of the prior art.
By forming the corners between the lower piece and the both side pieces of the clip body formed in a letter shape outwardly, the spring action is given to both side pieces of the clip body and each plate due to the rebound load of the laminated leaf spring. An object of the present invention is to provide a laminated leaf spring clip capable of preventing the clip body and the clip bolt from being damaged by cushioning the lateral displacement load of the spring with the both side pieces of the clip body.

[Means for solving the problem]

To achieve the above object, in a laminated leaf spring clip of the present invention, a U-shaped clip body having a lower piece and both side pieces, and a clip bolt for fastening between upper end portions of both side pieces of the clip body. And a bulge that bulges outward from the clip body across each corner between the lower piece and both side pieces of the clip body, extending from the vicinity of both end portions of the lower piece to the vicinity of each lower end portion of both side pieces. The protrusions are formed respectively.

[Action]

The laminated leaf spring clip configured as described above comprises a U-shaped clip body having a lower piece and both side pieces, and a clip bolt for fastening the ends of both side pieces of the clip body. Therefore, by fixing the lower piece of this clip body to the lower surface of the laminated leaf spring and tightening the ends of both side pieces with clip bolts, both sides of the laminated leaf spring are clamped by both side pieces of the clip body. , The lateral displacement load of each leaf spring caused by the rebound load of the laminated leaf spring is received by both side pieces of the clip body, the lateral displacement of each leaf spring is blocked, and the leaf spring is properly operated so as to have an effective spring action as the laminated leaf spring. It can be held in a laminated state, but at each corner between the lower piece and both side pieces of the clip body, the clip book is extended from the vicinity of both ends of the lower piece to the vicinity of each lower end of both side pieces. Since the bulging portions bulging outward of the clip body are formed respectively, the spring action is imparted to both side pieces of the clip body by the bulging portions bulging outwardly, and the laminated plate Both side pieces of the clip body have a cushioning action against the lateral displacement load of each leaf spring caused by the rebound load of the spring, and the lateral displacement load of each leaf spring is absorbed by the cushioning action of both side pieces of the clip body. It is possible to reduce the tensile load acting on the clip bolt by both side pieces of the clip body due to the lateral displacement load of the leaf spring, and also for the lateral displacement load of each leaf spring, the corner between the lower piece and both side pieces of the clip body. Since the stress concentration at the portion can be relieved, the clip body and the clip bolt can be prevented from being damaged.

〔Example〕

An embodiment will be described with reference to the drawings. Reference numeral 1 is a laminated leaf spring, and the laminated leaf spring 1 is fixed in a laminated state by a through bolt 2 at a central portion in the longitudinal direction thereof. The eyelet winding portions 3, 3 formed at both ends of the number leaf are attached to a base body (not shown). Further, 4 is a clip body, and the clip body 4 includes a lower piece 5 and both side pieces 6,
It is formed in a U shape by 6 and each corner portion between the lower piece 5 and the both side pieces 6, 6 extends from the vicinity of both end portions of the lower piece 5 to the vicinity of each lower end portion of the both side pieces 6, 6. The clip body 4 is formed with bulging portions 7, 7 that bulge outwardly of the clip body 4.
The lower piece 5 of the clip body 4 in the symmetrical position
Is fixed to the lower surface of the laminated leaf spring 1 by a rivet 8, and both side pieces 6, 6 of the clip body 4 are fastened by a nut 10 to a clip bolt 9 mounted between the ends of the laminated leaf spring. It is installed opposite to both sides of 1 with a minute gap.

Then, each leaf spring of the laminated leaf spring 1 is caused by the lateral displacement load F centered on the through bolt 2 generated by the rebound load P of the laminated leaf spring 1, and both side pieces 6, 6 of the clip body 4 are caused.
The clip body 4 is pressed at the corners between the lower piece 5 and the both side pieces 6 and 6 so as to extend from the vicinity of both end portions of the lower piece 5 to the vicinity of the lower end portions of both side pieces 6 and 6, respectively. Since the bulging portions 7, 7 bulging outward of the clip body 4 are respectively formed, the clip body is a lateral displacement load F of each leaf spring due to the spring action of the bulging portions 7, 7. Since the pressing force on both side pieces 6 of 4 is absorbed and absorbed, the tensile load on the clip bolt 9 is reduced, the stress concentration at each corner of the clip body 4 is relieved, and the clip body 4 and the clip bolt 9 are damaged. Can be prevented.

[Effect of device]

The present invention is configured as described above, and includes a U-shaped clip body having a lower piece and both side pieces,
Since the clip body is composed of clip bolts that fasten the ends of both side pieces of the clip body, lateral displacement of each leaf spring due to lateral displacement load caused by rebound load of the laminated leaf spring is prevented by both side pieces of the clip body. Since the laminated leaf spring is held in an appropriate laminated state, it is possible to secure an effective spring action as a laminated leaf spring, and at the corners between the lower piece and both side pieces of the clip body, the lower piece is attached. Since the bulging portions that bulge to the outside of the clip body are formed from the vicinity of both end portions of the clip body to the vicinity of the lower end portions of both side pieces, respectively, a laminated layer acting on both side pieces of the clip body The lateral displacement load generated by the rebound load of the leaf spring is buffered and absorbed by the spring action of the bulging portion bulged outward at each corner of the clip body,
The tensile load on the clip bolt is reduced and the stress concentration at the corner of the clip body is relieved,
The clip body and the clip bolt can be prevented from being damaged.

[Brief description of drawings]

1 shows a preferred embodiment of the present invention. FIG. 1 is a perspective view of a laminated leaf spring clip applied to a laminated leaf spring, and FIG. 2 is a vertical cross-sectional side view of the clip application portion in FIG. 4 ... Clip body, 5 ... Lower piece, 6 ... Side piece 7 ... Swelling portion, 9 ... Clip bolt

Claims (1)

[Scope of utility model registration request] 1. A U-shaped clip body having a lower piece and both side pieces, and a clip bolt for fastening the upper end portions of the both side pieces of the clip body to each other. 4. A clip for a laminated leaf spring, each of which has a bulging portion that bulges outward from the clip body, extending from the vicinity of both ends of the lower piece to the vicinity of the lower end of each side piece.