JPS5856426Y2 - Shaft member support push device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shaft-shaped member support bushing device such as a support bushing device for a tilt cab mount of an automobile.

When supporting a shaft-like member on a bracket or the like, a support bushing may be interposed between the shaft-like member and a frame-side member such as the bracket.

For example, in the tilt cab mount support bushing device shown in the partially cutaway front view of FIG. I support .3.

The torsion bar 3 has a fixed end 3A forged into a hexagonal shape, etc.
is tightly fitted into the hexagonal hole 4 of one of the support brackets 2, and an arm-shaped member called a cab support 5 for supporting the tilt cab is fixed to the free end 3B.

Since the cab support 5 is attached to the free end 3B of the torsion bar 3 on the outside of the support bracket 2, the hole 6 of the support bracket is forged to have a larger diameter and has a hexagonal shape so that the fixed end 3A can be inserted therethrough. free end 3B
The support bushing A is fitted into an annular gap formed between the hole 6 and the neck 3C of the torsion bar 3.

Since the support bushing A has the function of a bearing, it is made of metal or a molded material that is highly wear-resistant and oil-resistant, such as polyamide resin, but since it is a member that is to be fitted later, it is made of a cylindrical half with a flange 7. Shape bush piece 8,8
After the neck 3C of the torsion bar 3 is surrounded by facing each other and inserted into the hole 6, the flange portions of the bushing pieces 8, 8 are fixed to the support bracket 2 with bolts 9.

With the conventional support bushing device having the above structure, the workability of attaching and detaching is poor, it is troublesome to attach and detach, and the number of parts increases, and there is no room for removing them to reduce weight.
There were many drawbacks, including the difficulty of reducing costs.

The present invention is based on the above-mentioned viewpoints, and provides a shaft-shaped member supporting bushing device which solves the above-mentioned difficulties. A protrusion formed by extending the is provided, and an outward hook is formed at the tip of the protrusion at both left and right end portions, while a protrusion at a predetermined position on the outer surface of the protrusion at the center portion is provided.
A locking protrusion is formed on the inner circumferential surface of the hole in the frame side member and can be freely engaged with a groove. In the case of a support bushing device for mounting, installation is completed by simply inserting it into the hole of the support bracket fixed to the frame, and the protruding part of the central part with the latching protrusion is bent so as to approach the torsion bar. This is a bushing device for supporting a shaft-like member that can be removed by releasing the engagement between the latch projection and the groove.

Next, an embodiment of the present device will be described with reference to the drawings. The bushing piece 10 in the present device shown in a perspective view in FIG. One of A and 10B, 10A, has a convex portion 11.

Furthermore, in the bushing pieces 10 with two pieces facing each other,
As shown in FIG. 3, which is a vertical side view, the convex portion 11 forms a concave portion 12 that engages with the convex portion 11, and the two bushing pieces 10 and 10 are of the same shape and size and can be freely fitted. .

Further, at one end of the bushing piece 10, a protrusion 10 is formed by extending the peripheral wall 10C at both left and right end portions and at the center portion.
D. IOD and IOE are provided.

At the tips of the protruding parts 10D and IOD, hook parts 13, 13 facing outward are formed, respectively, and a latch protrusion 14 is protruded from a predetermined position on the outer surface of the protruding part 10E.

The latching protrusion 14 can be freely engaged with a groove 15 formed in the inner peripheral surface of the hole 6 of the support bracket 2 fixed to the vehicle body frame 1, for example.

FIG. 4 shows the bushing piece 10 in a plan view, and FIG. 5 shows a front view.

The inner surfaces of the protrusions 10D, IOD, and IOE are shaped like inclined surfaces a whose diameters become larger toward the outer ends.

As shown in the front view in FIG.
When placed over the torsion bar 3 shown in the figure, the bracket 2
This is provided to bend the protrusion 10E in the direction of the arrow in FIG. 3 so that the locking protrusion 14 can be inserted into the hole 6 of the support bracket 2. These protruding parts 10E, 10E are made to protrude from the end face.
It is formed so that it can be pushed inward to release the locking protrusion 14 and then pulled out.

On the other hand, the flange 13.13 connects the bushing piece 10 to the hole 6.
When inserted into the bracket 2, it comes into contact with the side surface of the bracket 2 and functions as a stopper.

Since the present invention is configured as described above, in the case of a support bushing device for tilting a cab mount of an automobile, after the cab support 5 is attached to the free end 3B of the torsion bar 3, the bracket that is not yet fixed to the body frame 1 is attached. 2
Insert the torsion bar 3 into the hole 6 from the outside of the bracket 2.
Insert the fixed end 3A of.

Next, after fitting the fixed ends 3A, 3A of the torsion bars 3, 3 into the holes 4 of the opposite brackets 2, 2, when the torsion bars 3, 3 are pulled in opposite directions, the bracket 2
, 2 approach each other, and a sufficient gap is created between the cab supports 5, 5 and the brackets 2, 2.

In this state, protrusions 10 are placed on each hexion bar 3 between the cab support 5 and the bracket 2.
D, IOD, IOE side facing the cab support 5 side, cover with the bushing piece 10°10, and make it face-to-face with each other.

When the facing bushing pieces 10, 10 are press-fitted into the hole 6 as they are, a locking protrusion 14 and a groove 1 are formed as shown in FIG.
5 will be engaged, and if left as is, the bushing piece 10 will be inserted from the hole 6.
．． 10 is in a state where it cannot be pulled out.

The torsion bars 3, 3 and brackets 2, 2 assembled as described above are moved using the torsion bars 3.3 as a guide until the brackets 2, 2 face the fixed position on the vehicle body frame 1. Then, the installation is completed by fixing the brackets 2, 2 by tightening nuts or the like.

During disassembly, first separate the brackets 2, 2 from the vehicle body frame 1, move the torsion bars 3, 3 so that the brackets 2, 2 approach each other, and then remove each bushing piece 10.
Since the tip of the protrusion 10E protrudes from the end surface of the support bracket 2, the third protrusion 10E and IOE are pushed inward from above and below to approach the circumferential surface of the torsion bar 3.
Push in the direction of the arrow in the figure to cause the locking protrusion 14 to escape from the groove 15, and then pull out the bushing pieces 10 and 10, respectively.

As is clear from the above description, the device of the present invention allows the bushing pieces, which were conventionally troublesome to attach, detach, assemble, and disassemble, to be attached extremely easily and without the use of tools.
Even during disassembly, it can be easily removed without using special tools, and the two bushing pieces are the same shape and size, allowing them to be aligned and fitted together. It has advantages.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing a conventional example of a supporting bushing device for tilting cab mount of an automobile attached to a vehicle body frame, and Fig. 2 is a perspective view showing one piece of the bushing piece used in the proposed device. , Figure 3 is a longitudinal cross-sectional side view of the bush piece.
FIG. 4 is a plan view of the bushing piece, FIG. 5 is a front view of the bushing piece, and FIG. 6 is a front view of the bushing piece in a state where the bushing pieces are facing each other. 1...Vehicle frame, 2...Bracket, 3...
Torsion bar, 3A... fixed end, 3B... free end, 3C... neck, 4, 6... hole, 10... bushing piece, 10D. 10E...Protrusion part, 11...Convex part, 13...Hatch part, 14...Latching protrusion, 15...Groove, a...Slope surface.

Claims (1)

[Scope of utility model registration request] In a device in which two semi-cylindrical bushing pieces of the same shape and size are placed facing each other and abut against the outer periphery of the shaft-shaped member to be supported,
The bushing piece is provided with protrusions formed by extending the peripheral wall at both left and right end portions and the center portion of one end, and hooks facing outward are provided at the tips of the protrusion portions at both left and right end portions. The protruding part of the central part is provided with a latching protrusion at a predetermined position on the outer surface thereof, which can be freely engaged with a groove formed on the inner circumferential surface of the hole of the frame side member, and this protruding part A bushing device for supporting a shaft-like member, wherein the inner circumferential surface of the bushing is formed into an inclined surface whose diameter becomes larger toward the outer end, and the end of the protrusion protrudes from the end surface of the hole of the frame-side member.