JPS582698Y2 - Automobile spare tire holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spare tire holding device for a motor vehicle, and more particularly to a spare tire holding device with dual safety measures.

A car's spare tire is usually hung on the underside of the car, but if the spare tire carrier loosens and the spare tire falls off while the car is running, it can be extremely dangerous for the car to run. This poses an unexpected danger to other vehicles.

Recently, performance standards have been established for spare tire holding devices, and their safety has become even more demanding.

The purpose of this invention is to take double safety measures to satisfy these performance standards, and to prevent the risk of the spare tire holding frame falling off even if the bolts tightening the spare tire holding frame become loose. The objective is to provide a spare tire holding device that is not available.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, an auxiliary frame 2 is fixed to a lower frame 1 of an automobile body, and a spare tire holding frame 4 is attached to this auxiliary frame 2 so as to be able to pivot vertically around a pivot 3. There is.

The tire holding frame 4 has a horizontal frame 5 fixed at the center.

The spare tire 6 is held between an upper frame 1 fixed to the lower side of the lower frame 1 of the vehicle body, a tire holding frame 4, and a horizontal frame 5.

As shown in FIG. 2, a hook 8 is fixed to the free end of the tire holding frame 4.

As shown in detail in FIG. 5, the hook 8 has a round hole 8a having a diameter a in the center thereof, and a width groove 8b communicating with the round hole 8a.

In FIG. 1, the rear end 11 of the vehicle lower frame 1 includes:
A bolt holding frame 13 is suspended downward so as to be pivotable about a pivot 12 in a direction perpendicular to the plane of the paper of FIG.

FIGS. 3 and 4 show examples of the bolt and the bolt holding frame, respectively.

In the embodiment shown in FIG. 3, the bolt holding frame 13 is formed by crushing the upper end 13a of a plate-like member and forming the central portion 13b into a cylindrical shape.

The upper end portion 13a has a hole through which the pin 12 passes, and is a portion for suspending the bolt holding frame 13 from the rear end 11 of the frame.

The threaded portion 1 of the hanger bolt 15 is attached to the inner cylinder of the central portion 13b.
An internal threaded portion 13c is formed to engage with the portion 5c.

Further, the lower end portion 13d of the bolt holding frame 13 is located at the center portion 13b.
The diameter of the hanger bolt 15 is smaller, and the hanger bolt 15 is threadedly engaged with the bolt holding frame 13 and is prevented from falling off from the bolt holding frame 13.

In FIG. 3, 16 is a collar interposed between the bolt holding frame 13 and the hook 8, and 18 is a washer.

As shown in detail in FIG. 6, the hanger bolt 15 has a threaded portion 15C at the top and a head 15d at the bottom, and a leaf-shaped portion 15 with a larger diameter adjacent to the lower head 15d.
a (diameter a') and a leaf-like part 1 with a smaller diameter above it.
5b (diameter b').

The relationship between the hook 8 and hanger bolt 15 is a> a '>
b >b'.

That is, the large-diameter leaf-like portion 15a of the hanger bolt 15 is received in the round hole 8a of the hook 8, but cannot pass through the groove 8b.

Furthermore, the small-diameter leaf-like portion 15b of the hanger bolt 15 can pass through the groove 8b of the hook 8.

The embodiment shown in FIG. 4 differs from the embodiment shown in FIG. 3 in the shape of the bolt holding frame and the mechanism for preventing the hanger bolt from falling off.

That is, in this embodiment, the bolt holding frame 13' is formed by bending a plate-like member as shown in the figure, and the nut member 11 is welded and fixed to the lower end thereof.

On the other hand, the hanger bolt 15' has a larger diameter portion 15e at its upper end to prevent it from falling off.

16' is a collar interposed between the bolt holding frame 13' and the hook 8.

Next, the operation of the spare tire holding device of the present invention will be explained.

First, the spare tire 6 is placed on the tire holding frame 4 and the horizontal frame 5 in a state where the hook 8 of the spare tire holding frame 4 is not engaged with the hanger bolts 15, 15'.

At this time, 15.15' is the bolt holding frame 13
, 13' are loosened and are in the lowest position.

The bolt retaining frame 13.13' is pivoted diagonally about the pin 12 and the collar 16.16' is lifted upwards.

In this state, the tire holding frame 4 is lifted and the hooks 8 are hooked onto the hanger bolts 15, 15'.

In this case, the groove 8b of the hook 8
15. Insert into the leaf-like portion 15b having a small diameter of 15'.

When the insertion is completed, the round hole 8a of the hook 8 is hooked on the leaf-like portion 15a of the hook 15, 15' having a larger diameter.

Next, attach the hanger bolt 15.15' to the bolt holding frame 13,
13', the tire holding frame 4 further rises and the spare tire 6 is fixed and held in the predetermined position shown in FIG.

According to the spare tire holding device of the present invention, the large-diameter leaf-like portions 15a of the hanger bolts 15, 15' are located in the round holes 8a of the hooks 8, and this portion cannot pass through the grooves 8b of the hooks 8. Even hanger bolt 15,
15' is loosened, and this bolt is attached to the bolt holding frame 13.13'
Even when the tire holding frame 4 moves downward, the engagement between the hook 8 and the large-diameter leaf-shaped portion 15a of the hanger poles 15, 15' is ensured.

Therefore, in a state where the Hungapor H5, 15' is loosened, there is a force that tries to push the tire holding frame 4 upwards, and a force that tries to pivot the Hungapol H5, 15' (bolt holding frame 13, 13') in the lateral direction. The tire holding frame 4 will not fall off unless the same force is applied at the same time.

Therefore, the spare tire holding device of the present invention has extremely high safety and fully satisfies predetermined performance standards.

[Brief explanation of the drawing]

Fig. 1 is a view of the spare tire holding device of the present invention seen from the side of the vehicle body, Fig. 2 is a plan view of the tire holding frame, and Fig. 3 is a main part of an embodiment of the spare tire holding device of the present invention. 4 is a view corresponding to FIG. 3 showing another embodiment, FIG. 5 is a plan view of the hook, and FIG. 6 is a side view of the hanger bolt.

Claims (1)

[Scope of utility model registration request] a tire holding frame 4 attached to the underside of the car body so as to be pivotable up and down; a hook 8 fixed to the free end of the holding frame;
Bolt holding frame 13 pivotally suspended downward from the vehicle body
, 13', and a hanger bolt 1 that can be threadedly engaged with the bolt holding frame and is held by the bolt holding frame so as not to fall off.
5.15', the hanger bolt has a large diameter stem part 15a adjacent to the lower head 15d and a small diameter stem part 15b above it, and the hook member 8 has a small diameter stem part 15a. A hole 8a that receives the large stem 15a, and a groove 8b that communicates with the hole through which the small diameter stem 15b cannot pass, but through which the large diameter stem 15a cannot pass.
A spare tire holding device for an automobile, comprising: