JPH0244112Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a stacked leaf spring for a vehicle, and in particular improves the mounting structure of a silencer that prevents squeaks between the leaf springs, and makes it possible for the silencer to be removed while the vehicle is running. This invention relates to a stacked leaf spring that prevents it from falling off.

Prior Art Conventionally, in a stacked leaf spring 1 such as a long taper leaf spring as shown in FIG. 1, its central portion 1a is fastened and fixed to an axle 5 by a U bolt 4 via an interleaf 2 and a pad 3. , a silencer 9 (made of synthetic resin or metal such as a brass plate) is installed between each of the leaf springs 6, 7, and 8 at both ends 1b to prevent squeaks, etc. between the leaf springs. It had been.

However, in the conventional example, as shown in FIGS. 2 to 4, the central portion 9a of the circular silencer 9 is made to protrude in one direction to form a convex portion 9a,
The convex portions were simply inserted into holes 7a and 8a formed in the central leaf spring 7 and the lower leaf spring 8 to be mounted. Therefore, when the vehicle bounces or rebounds while driving, as shown in Figure 4,
The gap between the plates of the leaf springs 6 and 7 widens as shown by arrow A, and there is a risk that the silencer 9 may slip out of the hole 7a as shown by arrow B and fall off.
In addition, in such a mounting structure, in the case of three leaf springs, the center and lower two leaf springs 7, 8
The disadvantage is that holes 7a and 8a must be drilled in the holes 7a and 8a, which requires a correspondingly large number of man-hours.

Purpose The present invention was made in order to eliminate the drawbacks of the above-mentioned prior art, and its purpose is to prevent the central leaf spring from being damaged from both upper and lower sides when stacking at least three leaf springs. By fixing the central part with a fastening element such as a rivet or bolt through the mounting hole, and mounting the silencer so that its outer circumferential surface abuts the adjacent upper and lower leaf springs, it is possible to prevent overlap while the vehicle is running. To prevent a silencer from falling off from a leaf spring no matter how much the leaf spring bounces or rebounds. Another objective is to reduce the number of leaf springs that require drilling holes for mounting silencers.

Summary In summary, the present invention is constructed by stacking a plurality of leaf springs and installing a silencer between the plates of the plurality of leaf springs to prevent squeaks, etc., in which the silencer includes at least three leaf springs. When stacking leaf springs, the central part is fixed with fastening elements such as rivets and bolts through the mounting holes from both the upper and lower sides of the central leaf spring, and the outer peripheral surface is attached to the upper and lower sides adjacent to the central leaf spring. It is characterized in that it is configured so as to come into contact with the two leaf springs.

Configuration The present invention will be described below based on embodiments shown in the drawings. In FIG. 5, a stacked leaf spring 1 according to the present invention is shown.
1 has a plurality of leaf springs 16, 17, 18 stacked one on top of the other, and a silencer 19 is installed between the plates of the plurality of leaf springs to prevent squeaks, etc., and the silencer 19 has at least When three leaf springs 16, 17, and 18 are overlapped, the central part 19a is fixed with a fastening element 20 from both upper and lower sides of the central leaf spring 17 through the receiving hole 17a,
It is constructed of two members 19A and 19B so that its outer circumferential surface 19b abuts the two upper and lower leaf springs 16 and 18 adjacent to the central leaf spring 17. Note that the fastening element 20 is not limited to rivets.
Obviously, bolts, nuts (not shown), etc. may also be used.

Function The present invention is constructed as described above, and its function will be explained below. Even if the stacked leaf spring 11 bounces or rebounds and is greatly bent while the vehicle is running, the silencer 19 is fixed to the central leaf spring 17 through the hole 17a of the leaf spring 17, It doesn't move, it doesn't move, so there's no danger of it falling off. In addition, in the conventional example, in the case of three stacked leaf springs 1, two of them are
7 and 8 had to be provided with holes 7a and 8a, respectively, but in the present invention, it is only necessary to provide holes 17a in the central leaf spring 17, which facilitates machining.

Effects Since the present invention is constructed and operates as described above, when at least three leaf springs are stacked on top of each other, the central part is riveted through the mounting holes from both the upper and lower sides of the central leaf spring. The silencer is fixed with a fastening element such as a bolt, and the silencer is mounted so that its outer circumferential surface abuts the adjacent upper and lower leaf springs, so no matter how much the stacked leaf springs bounce or rebound while the vehicle is running, the leaf springs will remain intact. This has the effect of preventing the silencer from falling off. Further, it is possible to reduce the number of leaf springs that require drilling holes for installing the silencer.

[Brief explanation of the drawing]

Figures 1 to 4 relate to a conventional example, Figure 1 is a side view of a stacked leaf spring, Figure 2 is an enlarged vertical sectional view showing the mounting structure of the silencer in Figure 1, and Figure 3 is a silencer and plate. An exploded perspective view of the spring, FIG. 4 is a partial side view showing how the silencer falls off due to large deflection of the leaf spring, and FIG. 5 is a partial enlarged view showing the mounting structure of the silencer of the stacked leaf spring according to the embodiment of the present invention. FIG. 11 is a stacked leaf spring, 16, 17, 18 are leaf springs, 17a is a mounting hole, 19 is a silencer, 19a
is a central part, and 20 is a fastening element.

Claims (1)

[Scope of utility model registration request] In a device in which a plurality of leaf springs are stacked together and a silencer is installed between the plates of the plurality of leaf springs to prevent squeaks, etc., the silencer is The central part is fixed by a fastening element from both upper and lower sides of the central leaf spring through the mounting holes, and the outer circumferential surface thereof is configured to abut against the two leaf springs on both upper and lower sides adjacent to the central leaf spring. A stacked leaf spring characterized by: