JPH033103Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to automobiles, and particularly to a spare tire storage mechanism.

[Prior Art] Conventionally, in the case of a clamp type spare tire of a dump truck or the like, the positioning is performed using a guide bar, and then a holding plate 7 as shown in FIG. 4 is fixed by tightening bolts and nuts.

[Problem that the invention attempts to solve]

However, when using such a conventional presser plate 7, it is necessary to remove the presser plate 7 when removing the spare tire 2 (see FIG. 1 below).
In addition, when installing, after positioning the spare tire 2, it is necessary to align the mounting holes of the presser plate 7 with the bolts while supporting the spare tire 2, which causes problems such as difficulty in the work because the spare tire 2 is heavy. be.

In order to solve this problem, a structure as shown in FIG. 5 has been provided.

In this case, the presser plate 7 is the tire wheel 2a.
It is attached by a bolt 8 so as to be rotatable about a position eccentric from the center of the .

When removing the spare tire 2, the presser plate 7 is rotated upward in FIG. Board 7
With the lower part engaged with the tire wheel 2a, the presser plate 7 is pressed and fixed to the tire wheel 2a with nuts 9 and bolts 8.

In the case of such a means, there are problems in that the pressing surface for pressing the tire wheel 2a is only the lower part, resulting in an imbalance, and the pressing surface is small, resulting in low reliability.

The present invention aims to solve these problems, and is a spare tire storage system that allows the spare tire to be installed and removed without removing the holding plate, and also improves the reliability of the fixed state. The purpose is to provide a mechanism.

For this reason, the spare tire storage mechanism of the present invention is
a bracket fixed to the vehicle body member; a guide bar attached to the bracket and engaged with the outer periphery of the spare tire to hold the spare tire in a desired position; a holding plate with a long hole drilled therein, and a bolt that is installed upright in the bracket and passes through the hub hole bored in the tire wheel and the long hole, and tightens the holding plate to the bracket side with a nut. The holding plate has a longitudinal length larger than the inner diameter of the hub hole, a widthwise length smaller than the inner diameter of the hub hole, and one longitudinal end of the elongated hole. The bolt is formed so that the sum of the length from the end to the end of the holding plate opposite the one end in the longitudinal direction and the outer diameter of the shaft of the bolt is smaller than the inner diameter of the hub hole. There is.

[Effect]

In the above-mentioned spare tire storage mechanism of the present invention, the spare tire can be removed by releasing the clamping state of the holding plate and positioning the holding plate so that the end of the holding plate is located inside the periphery of the hub hole of the tire wheel. This can be done by moving the presser plate to pass through the hub hole.

Furthermore, when attaching the spare tire, the operation can be performed in the reverse order, so the spare tire can be easily attached and detached while the presser plate remains attached to the bracket.

〔Example〕

Hereinafter, an embodiment of the present invention will be explained. Figures 1 to 3 show a spare tire storage mechanism as an embodiment of the present invention. 1 and 3 are perspective views of the holding plate.

As shown in FIGS. 1 to 3, a bracket 4 is fixed to a side member 3 as a vehicle body member in order to store and fix a spare tire 2 in the vehicle body 1.

The downwardly inclined surface of the bracket 4 on the rear side is formed as a mounting surface 4a for the tire wheel 2a of the spare tire 2.

The bracket 4 is equipped with a guide bar 5 extending downward along the mounting surface 4a, the lower part of which engages with the outer periphery of the spare tire 2 to hold the spare tire 2 in a desired position. They are now coming together to support each other.

A bolt 8 is erected at the center of the mounting surface 4a of the bracket 4, and a presser plate 7 is attached to the bolt 8 with its elongated hole 10 loosely fitted therein.

The holding plate 7 is prevented from falling off by a nut 9 screwed into a bolt 8.

In this way, the bolt 8, presser plate 7, and nut 9 form a fixing mechanism 6 for the tire wheel 2a of the spare tire 2.

The holding plate 7 is formed with a long hole 10, and the long hole 10 holds a base 10a formed to be slidable with respect to the bolt 8 and the holding plate 7 at a constant position, and prevents movement of the holding plate 7. It is formed by a guide portion 10b that regulates the range.

The guide portion 10b is formed to have a smaller width than the base portion 10a, and the width of the guide portion 10b is smaller than that of the base portion 10a.
The relative movement between the bolt 8 and the presser plate 7 is stopped at the transition point.

The holding plate 7 has a longitudinal length (dimension) larger than the inner diameter of the central hub hole 2b of the tire wheel 2a, and a widthwise length (dimension) smaller than the inner diameter of the central hub hole 2b. The sum of the length from one longitudinal end 10c of the elongated hole 10 to the lower end (end) 7a of the holding plate opposite to the longitudinal end 10c and the outer diameter of the shaft of the bolt 8 is the hub. It is formed to be smaller than the inner diameter of the hole 2b.

Further, the presser plate 7 is formed with a handle portion 7b whose upper end side is bent toward the rear side.

A guide 11 is erected at the upper center of the bracket 4 to maintain a constant posture when the presser plate 7 is moved, and to restrict downward movement of the presser plate 7 by more than the required amount. It's getting old.

In addition, the left and right mounting surfaces 4a are formed in a recessed state with respect to the mounting surface 4a, and when the tire wheel 2a is mounted on the mounting surface 4a, a gap is formed on the back side of the tire wheel 2a,
The lower end 7a of the presser plate 7 can be inserted into the back side of the tire wheel 2a.

Since the spare tire storage mechanism as an embodiment of the present invention is constructed as described above, when installing the spare tire 2, first put the presser plate 7 in the state shown in A in FIG. The tire wheel 2a of the spare tire 2 is brought into contact with the mounting surface 4a of the bracket 4 by placing the tire wheel 2a on the bracket 4 and holding it in a required position.

At this time, since the lower end 7a side of the presser plate 7 is in the gap between the tire wheel 2a and the mounting surface 4a of the bracket 4, the tire wheel 2a of the spare tire 2 and the mounting surface 4a of the bracket 4 are not in contact with each other. It is carried out without any problems.

Furthermore, since the upper end of the presser plate 7 is located inside the periphery of the hub hole 2b of the spare tire 2, the tire wheel 2a of the spare tire 2 and the mounting surface 4a of the bracket 4 can come into contact without any problem.

Thereafter, when the presser plate 7 is pulled upward (in the direction of arrow X in FIG. 3), the presser plate 7 becomes in the state shown in B in FIG.

At this time, the lower end 7a of the presser plate 7 is located inside the periphery of the hub hole 2b of the spare tire 2, and by pressing the upper part of the presser plate 7 after this, the lower end 7a of the presser plate 7 is placed on the tire wheel of the spare tire 2. 2
a It will come out on the front side.

Then, by pushing the presser plate 7 downward (in the direction opposite to the arrow X in FIG. 3), the condition shown by C in FIG. Both ends become engaged.

When the nut 9 is rotated in this state, the presser plate 7
is mounted toward the mounting surface 4a, and the tire wheel 2a is tightened and fixed.

On the other hand, when removing the spare tire 2, by performing the above-mentioned operation in reverse, the holding plate 7 goes through the state B and reaches the state C, and the spare tire 2 can be removed without removing the holding plate 7. be able to.

Then, when the holding plate 7 is in the state A, the elongated hole 1
The upper end of the guide portion 10b of 0 engages with the guide 11,
This restricts downward displacement of the holding plate 7 by more than the required amount.

[Effect of idea]

As described in detail above, the spare tire storage mechanism of the present invention has a simple structure and allows the spare tire to be attached and detached without removing the presser plate, resulting in good workability.

In addition, since the spare tire is fixed at both ends of the holding plate, it can be fixed in a well-balanced manner.
Fixed state reliability is improved.

Furthermore, since the presser plate does not always come off from the bracket when the spare tire is attached or removed, there is an advantage that there is no risk of the presser plate being lost.

[Brief explanation of drawings]

Figures 1 to 3 show a spare tire storage mechanism as an embodiment of the present invention. Figure 1 is a vertical sectional view of the main part thereof, Figure 2 is a view taken in the direction of the arrow in Figure 1, and Figure 3 is a FIG. 4 is a perspective view of the presser plate in the conventional spare tire storage mechanism;
FIG. 5 is a schematic diagram showing another example of a conventional spare tire storage mechanism. 1... Vehicle body, 2... Spare tire, 2a... Tire wheel, 2b... Hub hole, 3... Side member as a vehicle body member, 4... Bracket, 4
a...Mounting surface, 5...Guide bar, 6...Fixing mechanism, 7...Press plate, 7b...Handle portion, 8...
Bolt, 9... Nut, 10... Long hole, 10a...
...Base, 10b...Guide part, 11...Guide.

Claims (1)

[Scope of utility model registration request] a bracket fixed to the vehicle body member; a guide bar attached to the bracket and engaged with the outer periphery of the spare tire to hold the spare tire in a desired position; a holding plate with a long hole drilled therein; and a bolt that is installed upright in the bracket and passes through the hub hole bored in the tire wheel and the long hole, and tightens the holding plate to the bracket side with a nut. Equipped with the above-mentioned presser plate,
The length in the longitudinal direction is formed to be larger than the inner diameter of the hub hole, and the length in the width direction is smaller than the inner diameter of the hub hole, and from one longitudinal end of the long hole to the one end in the same longitudinal direction. A spare tire storage mechanism, characterized in that the sum of the length to the end of the opposing presser plate and the outer diameter of the shaft of the bolt is smaller than the inner diameter of the hub hole.