JPH0123896Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a spare tire holding device for automobiles, etc.

As a conventional spare tire holding device, for example, the first
There is something like the one shown in the figure. That is, the lid body 10
A case 103 in which drum 1 is attached is attached to the lower part of the vehicle body, and inside this case 103 is a rotatable drum 1.
05 is installed. The first drum of this drum 105
A screw-shaped groove 107 is provided on the outer periphery of the right side in the figure.
is formed. Then, the drum 105 is rotated and a wire 109, which will be described later, is attached to the drum 105.
It is configured so that it fits into the groove 107 when it is wound around the body. The wire 109 is attached to the right end of this groove 107, that is, the right end of the drum 105.
One end is attached with a fixing member 111. Furthermore, this wire 109 extends to the outside through a through hole (not shown) drilled in the case 103, and a tire is attached to the tip of the wire 109 via a pulley (not shown) by a mounting bracket.

Further, near the outer circumferential side of the drum 105 where the groove 107 is formed, a lid 109 is provided to prevent the wire 109 from coming off the groove 107 when the wire 109 enters the groove 107 and is wound around the drum 105. A plurality of rollers 1 extending from the side
13 are provided.

On the other hand, a worm wheel portion 115 is formed on the outer periphery of the left side portion of the drum 105, and a threaded portion 117 is formed on the drum 105 between the worm wheel portion 115 and the portion where the groove 107 is formed.
is formed. The nut member 1 is screwed into this threaded portion 117 and whose upper end portion is brought into contact with the inner wall of the case 103, so that the nut member 1 moves in the left-right direction with respect to the case 103 when the drum 103 is rotated.
19 are provided. Then, when the drum 105 is rotated in the direction in which the wire 109 is released from the drum 105 and the wire 109 is almost completely released, the right side of the nut member 119 comes into contact with the side wall 121 to stop the rotation of the drum 105. It is formed at the right end of 117.

A worm 123 that meshes with the worm wheel portion 115 extends in a direction perpendicular to the drum 105 and is rotatable with respect to the case 103. One end of this worm 123 is connected to the case 103.
The worm 123 protrudes outward from the worm 123, and is configured such that the worm 123 can be rotated by a handle (not shown) via this protruding portion.

In such a configuration, when the handle (not shown) is rotated clockwise in FIG. 1, the worm 12
3 also rotates clockwise (in the direction of the arrow in FIG. 1), and at the same time as the drum 105 equipped with the worm wheel portion 115 rotates in the direction in which the wire 109 is wound, the nut member 119 moves to the left in FIG. Then, a tire (not shown) attached to the tip of the wire 109 rises and is fixed to the lower part of the vehicle body.

Further, when removing a tire (not shown) from the vehicle body, the handle is rotated to rotate the worm 123 counterclockwise in FIG. 1, contrary to the above. When the worm 123 rotates counterclockwise, the drum 1
05 rotates in a direction to release the wire 109, and the nut member 119 moves rightward in FIG. Then, substantially at the same time as the wire 109 is completely released, the nut member 119 is attached to the drum 10.
5 and stops the rotation of the drum 105, thereby preventing the wire 109 from being wound around the drum 105 in the opposite direction.

However, in such a conventional spare tire holding device, after the wire 109 is almost completely released from the drum 105, in order to prevent the drum 105 from further rotating in the direction in which the wire 109 is released, the drum 105 has a dedicated Since it is necessary to form the threaded part 117 and to provide a special nut member 119 to be screwed into the threaded part 117, there are problems in that additional processing steps and an additional number of parts are required.

This idea was devised in view of these conventional problems, and it reduces the number of processing steps and
The present invention provides a spare tire holding device whose purpose is to reduce the number of parts.

In order to achieve this purpose, this invention attaches one end of the wire to a drum rotatably mounted in a housing fixed to the vehicle body, and by winding the wire around the drum, a tire attached to the other end of the wire is attached. In a spare tire holding device that is raised and fixed to the vehicle body, one end is swingably attached to the end of the drum, one end of the wire is attached to the other end, and as the wire is released, the other end is A fixing member that protrudes outward in the radial direction of the drum, and a stopper that is provided on the housing and can be contacted by this protruding portion when the fixing member projects outward in the radial direction of the drum. It is.

Hereinafter, one embodiment of this invention will be described in detail based on FIGS. 2 to 4.

A lid 5 is attached to close the opening 3 of the case 1, and the flange 7 of the case 1 and the lid 5
The case 1 and the lid body 5 are attached to the lower part of the vehicle body by fasteners such as bolts (not shown) through attachment holes 9 drilled through the case 1 and the cover body 5.

Inside the case 1, a drum 11 which is rotatable with respect to the case 1 is installed by an appropriate method so as to extend in the left-right direction in FIG. A screw-shaped groove 1 is provided on the outer periphery of the right side of the drum 11 in FIG.
3 is formed. This groove 13 corresponds to the drum 11
When the wire 15, which will be described later, is wound around the drum 11 by rotating the drum 11, the wire 15 enters.

The right end of the groove 13 in FIG. 2, that is, the drum 1
As shown in FIG. 3, which is an enlarged right side view of the drum 11 in FIG. It is attached through. This fixing member 17 is swingable around a pin 18, and one end 17a thereof can protrude from the outer peripheral surface of the drum 11.

The wire 15 extends to the outside through a through hole (not shown) drilled in the case 1, and a tire (not shown) is attached to its tip by a mounting bracket (not shown) via a pulley (not shown) attached to the vehicle body. There is.

Further, a cylindrical portion 5a extends from the lid 5 side so as to cover the groove 13 portion of the drum 11, and a wire 15 enters the groove 13 and is wound around the drum 11 at an appropriate position of the cylindrical portion 5a. A plurality of rollers 19 are provided rotatably in the same direction as the extending direction of the drum 11 to prevent the wire 15 from coming off the groove 13 at this time. The case 1, the lid 5, and the cylindrical portion 5a constitute a housing.

An opening 21 is formed in the cylindrical portion 5a so that the wire 15 can extend from the case 1 to the outside thereof.
The stopper 23 is formed by bending inward the cylindrical portion 5a near the opening 21, that is, near the outer periphery of the drum 11. A fixing member 17 is pulled by the wire 15, and one end 17a of the fixing member 17 protrudes from the outer peripheral surface of the drum 11 and comes into contact with the stopper 23. Due to this contact, the drum 1
1 is stopped.

On the other hand, a worm wheel portion 25 is formed on the outer periphery of the left side portion of the drum 11, and a worm 27 that meshes with the worm wheel portion 25 is attached to the case 1 so as to be rotatable in a direction perpendicular to the drum 11. There is. And this warm 27
One end protrudes from the case 1 to the outside, and the worm 27 is configured to be rotated by a handle (not shown) via this protruding portion.

Next, the action will be explained.

When a handle (not shown) is rotated to rotate the worm 27 counterclockwise (in the direction of the arrow in FIG. 2), the drum 11 is rotated in the direction in which the wire 15 is released, that is, clockwise in FIG. 3.

Then, as shown in FIG. 4, almost at the same time when the wire 15 is almost completely released from the drum 11,
The fixing member 17 is pulled by the wire 15 and the pin 18
The one end 17a swings counterclockwise around the
protrudes from the outer peripheral surface of the drum 11. One end 17a of this protruding fixing member 17 comes into contact with the stopper 23 of the cylindrical part 5a, and the rotation of the drum 11 is stopped. After the wire 15 is unwound, it is further wound in the opposite direction to the direction in which it was previously wound. It is possible to prevent this from happening.

As the wire 15 is released from the drum 11 in this manner, the tire (not shown) attached to the tip of the wire 15 separates from the vehicle body and descends.

Also, when raising the tire (not shown) and fixing it to the vehicle body, reverse the above and rotate the handle (not shown) to rotate the worm 27 clockwise in FIG. It rotates counterclockwise in the direction in which it is wound, that is, in Fig. 3.
When the drum 11 rotates counterclockwise, the wire 1
5 begins to enter the groove 13, the fixing member 17 swings clockwise around the pin 18, and its one end 17a enters inside the outer surface of the drum 11.

When the drum 11 is further rotated and the wire 15 is wound while entering the groove 13 of the drum 11, a tire (not shown) attached to the tip of the wire 15 rises and is fixed to the lower part of the vehicle body.

As described above, according to this invention, one end of the wire is wound around the drum and the other end supports the tire, and the other end of the fixing member is swingably attached to the end of the drum. When the wire is released, the other end of the fixing member protrudes outward in the radial direction of the drum and comes into contact with a stopper provided on the housing side, thereby preventing the wire from wrapping in the opposite direction around the drum. As a result, there is no need to form a threaded part on the drum unlike in the past, and there is no need to provide a nut member to be screwed into this threaded part, so it is possible to reduce the number of machining steps and the number of parts. can be reduced.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a conventional spare tire holding device.
Figures 2 to 4 relate to embodiments of this invention;
Figure 3 is a cross-sectional view of the spare tire holding device, Figure 3 is a right side view of the drum showing the wire properly wound around the drum, and Figure 4 is a right side view of the drum showing the wire being almost completely unwound from the drum. It is a right side view. Explanation of symbols representing main parts of the drawings, 11...
...Drum, 15...Wire, 17...Fixing member,
17a...one end, 23...stopper.

Claims (1)

[Scope of utility model registration request] A spare tire holding device that attaches one end of a wire to a drum that is rotatably installed in a housing that is fixed to the car body, and wraps the wire around the drum to raise the tire attached to the other end of the wire and fix it to the car body. , one end is swingably attached to the end of the drum, one end of the wire is attached to the other end, and the other end protrudes radially outward of the drum as the wire is released. A spare tire holding device comprising: a member; and a stopper provided on the housing and with which the protruding portion can come into contact when the fixing member protrudes outward in the radial direction of the drum.