JPS5937423Y2 - Spare tire carrier lifting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a lifting device for a spare tire carrier, and its purpose is to improve workability when loading and unloading a spare tire,
This makes it versatile enough to accommodate tires of various sizes.

BACKGROUND ART Conventionally, a lifting device for a spare tire carrier in a pan-type automobile is provided with a hook for engaging and disengaging one end of the carrier at the end of a bolt shaft supported by a chassis frame.

In this case, to raise and lower the carrier, move the bolt shaft approximately 20
The device had to be rotated more than once, and quick and easy lifting and lowering operations could not be achieved.

The present invention provides a carrier lifting device that solves the above-mentioned conventional problems.

The embodiment will be explained based on the drawings.
In the figure, 1 is a chassis frame, and 2 is a bracket fixed to the lower surface of the chassis frame 1.

This bracket 2 has a lower shaft 3 and an upper shaft 4 protruding in the horizontal axis direction at the positions of upper and lower tools on the same vertical line.

Note that 5 indicates a stopper rubber at the rising end of the carrier 11.

A hook body 6 and a pedal 10 are rotatably supported by the bracket 2.

The hook body 6 has an arc shape, and the carrier 1 is attached to the tip of the hook body 6.
1, a hook 7 that can be engaged with and detached from the hook 7, an arcuate guide groove 8, a large number of engagement recesses 9 arranged in parallel on the inner circumferential curved surface, and a stopper protrusion 15 at the rear end.

Also, preferably, a cushioning rubber 16 is attached to the end of the guide groove 8.

The hook body 6 slidably engages and supports a guide groove 8 on an upper shaft 4 protruding from the bracket 2.
It can be rotated in the front and back direction by being guided by the upper shaft 4 and the upper shaft 4.

On the other hand, the pedal 10 has a shape bent upward at a required angle, and this bending point is located at a lower shaft 3 that projects from the bracket 2.
It is rotatably supported using the fulcrum as a fulcrum.

The tip 10a of the pedal 10 is pivotally connected to the hook body 6.

Reference numeral 13 denotes a lock shaft, which has an inverted U-shape as seen in FIG.

At the upper end of this lock shaft 13 is a lock lever that rotates eccentrically.
12 are provided.

This lock shaft 13 is inserted into and straddles the chassis frame 1 from above, and the lock lever 12 comes into contact with the upper surface of the chassis frame 1, and the eccentric rotation of the lock lever 12 moves the lock shaft 13 up and down, and also regulates the lifting end position. It is supposed to be done.

A lock pin 14 is attached to the lower end of the lock shaft, and is capable of engaging and disengaging from an engagement recess 9 formed in the hook body 6.

Next, the operation of the device of the present invention having the above structure will be explained.

Schematically, as shown in FIG. 3, the tire T is placed on the carrier 11, one end of the carrier 11 is engaged with the hook 7 of the hook body 6 as shown in FIG. (B)
As shown in the figure, the carrier 11 is moved to the raised position by depressing the pedal 10, and the carrier 11 is locked in the raised position by operating the lock shaft 13.

The details of this operation will be explained with reference to FIG. 1. The solid line in the figure shows the lower end position of the carrier 11, and the virtual diagram shows the upper end position.

That is, at the lower end position, the lock pin 14 at the lower end of the lock shaft 13 is disengaged from the engagement recess 9 of the hook body 6, the hook body 6 rotates forward, and the stopper protrusion 15 comes into contact with the lock pin 14. are in contact with each other.

Further, the pedal 10 is raised by the forward rotation of the hook body 6.

In this state, the carrier 11 can be freely engaged and disengaged from the hook 7, and the spare tire T can be taken in and out with the carrier 11 removed.

Carry the spare tire T onto the carrier 11, and
When one end of the hook 1 is engaged with the hook 7 and the pedal 10 is depressed, the hook body 6 is guided by the guide groove 8 and the upper shaft 4 and rotates rearward.

As a result, the hook I raises one end of the carrier 11,
When the carrier 11 comes into contact with the stopper rubber 5, it reaches the rising end position.

At this ascending end position of the carrier 11, the lock lever 12 is reversed to move the lock shaft 13 upward.

The lock pin 14 engages with one of the engaging recesses 9 formed in the hook body 6 at the rising end of the lock shaft 13, and the lock shaft 13 is regulated at the rising end by the reversed lock lever 12.

Therefore, the hook body 6 restricts the rotation of the carrier 11 at the ascending end position, and is locked in a fixed position even when the pedal 10 is released.

When the carrier 11 is moved downward, the lock pin 14 is released from the engagement recess 9 and lowered by its own weight by simply turning the lock lever 12 in the direction of the solid line in FIG.

At this time, at the descending end, the rubber 1 provided at the end of the guide groove 8
6 cushions the impact, and the forward rotation of the hook body 6 is restricted by the stopper protrusion 15 coming into contact with the lock pin 14.

As described above, according to the device of the present invention, the downward movement of the carrier is achieved by one action of reversing the lock lever, and the upward movement of the carrier is achieved by two actions: depressing the pedal and reversing the lock lever. This has the advantage that it is much faster and easier to perform than normal operation, and the force required to press down on the pedal when raising the carrier is reduced depending on the lever ratio of the pedal.

In addition, the raised position of the carrier can be changed by changing the engagement position of the lock pin in the engagement recess, so the raised position can be determined according to the tire size (width), and tires of various sizes can also be supported. is possible.

[Brief explanation of drawings]

FIG. 1 is a side view of the device of the present invention, FIG. 2 is a perspective view of the main components of the device of the present invention, and FIGS. 3A and 3B are explanatory views of the operation of the device of the present invention. 1... Chassis frame, 2... Bracket, 3... Lower shaft, 4... Upper shaft,
6...Hook body, 7...Hook, 8
...Guide groove, 9...Engagement recess, 10
...Pedal, 11 ...Carrier, 12
・・・・・・Lock lever 13・・・・Lock shaft,
14...Lock pin, 15...Stopper protrusion.

Claims (1)

[Scope of utility model registration request] A bracket 2 is fixed to the lower surface of the chassis frame 1, and a lower shaft 3 and an upper shaft 4 are provided on the bracket 2 to protrude in the horizontal axis direction. One end of the carrier 11 is rotatably supported on the lower shaft 3 using the carrier 11 as a fulcrum, has a tire mounting part in the center, and has the other end pivoted to the chassis frame 1 so as to be pivotable in the vertical direction. An arcuate hook body 6 with a hook 7 that engages and disengages
, an arcuate guide groove 8 having the lower shaft 3 as its radial center;
A large number of engagement recesses 9 are provided on the inner curved surface of the hook body 6, and the guide groove 8 is guided in the upper shaft 4 to rotatably attach the hook body 6 to the bracket 2. 10a is pivotally coupled to the hook body 6, and a lock shaft 13 that engages and disengages from the engagement recess 9 is supported on the chassis frame 1 so as to be movable up and down and to regulate the end position of the up and down position. Carrier lifting device.