JPH035346B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tire storage trolley, and more particularly to an improvement of a storage trolley that facilitates the loading and unloading of green tires.

[Prior art]

BACKGROUND ART Conventionally, a method for storing green tires has been to suspend the bead portion of the tire using a pin rack, for example.

However, with this method of holding raw tires, when storing heavy tires, the raw tires may sag under their own weight and become oval-shaped, or the upper end where they are suspended may expand in the width direction. A problem occurs.

Also, JP-A-58-167330 and JP-A-56-
As disclosed in Publication No. 5754, if a so-called hammock trolley is used in which a hammock (cloth) is stretched between two shafts fixed to the trolley, the above-mentioned problems can be improved, but Particularly in the case of heavy raw tires, there is a problem in that handling, loading and unloading the tires requires a great deal of labor and time.

[Purpose of the invention]

This invention was devised by focusing on the conventional problems, and its purpose is to make it possible to easily put in and take out heavy raw tires when storing them on a trolley without requiring a lot of effort and time. The present invention also provides a tire storage cart that can store raw tires in a stable state.

[Structure of the invention]

In order to achieve the above object, the present invention includes two arms each having an L-shaped cross section, and a hammock mounting shaft connected to the front and rear ends of the two arms at a predetermined distance from each other at a tire entrance/exit. A rotating arm composed of a kick-out shaft and a bearing pipe connecting the elbow position of the arm is provided, and the rotating arm is arranged at the bottom of the tire entrance side so that the short side of the arm faces the tire entrance side. A rotation center supporting a bearing pipe is provided, one end of the hammock is fixed to a hammock mounting shaft of a rotary arm located at the end on the tire inlet/outlet side, and the other end of the hammock is fixed to the hammock mounting shaft on the side opposite to the tire inlet/outlet. The gist is that it is fixed near the upper end of the side frame where it is located.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the accompanying drawings.

1 and 2 show a front view and a side view of a tire storage cart 1 according to the present invention, and the storage cart 1 has a bottom frame 2a, a side frame 2b,
It is formed with a concave cross section.

A tire entrance/exit 3 is provided on one side of the storage cart 1.
is provided, and the longitudinal direction of the storage cart 1 is approximately L.
A plurality of tire storage chambers 5 (in this embodiment, four
It is divided into sections (chambers).

Note that the number of tire storage chambers 5 is not particularly limited.

Angles 6a and 6b are fixed to the front and rear parts of the storage cart 1 near the tire entrance 3 side. At the upper ends of the angles 6a and 6b, both ends of a pipe shaft 8, which is the center of rotation of a rotary arm 7 to be described later, are installed and fixed via U-bolts 9. The rotating arms 7 include two arms 1 each having an L-shaped cross section and each housed in the tire storage chamber 5.
0a, 10b and these two arms 10a, 10
It is composed of a pipe shaft 11a (hammock mounting shaft) and a pipe shaft 11b (kick-out shaft) that connect the front and rear ends of the rotary arm 7, and a bearing pipe 12 provided at the elbow that is the center of rotation of the rotary arm 7. The bearing pipe 12 is rotatably fitted to a pipe shaft 8 installed at the front and rear of the storage cart 1.

In addition, as for the installation state of the rotating arm 7, the length l1 on the tire entrance/exit 3 side is shortened with the pipe shaft 8 as a fulcrum, and the length l2 inside the tire storage chamber 5 (inside the truck) is set to be long, and the tire W The rotary arm 7 is configured so that it can rotate naturally by moving the center of gravity of the raw tire W.

Note that the structure that allows the rotary arm 7 to rotate smoothly by moving the center of gravity of the tire W (raw tire W) is not limited to the above embodiment, and for example, the structure that allows the rotary arm 7 to rotate smoothly by moving the center of gravity of the tire W (raw tire W) is not limited to the above embodiment. The center of gravity of the attached tire W may be moved.

Supports 13 and 14 are installed at the four corners of the storage cart 1.
One end of a partition pipe 4 that partitions the tire storage chamber 5 is fixed to the upper ends of the pillars 13 and 14 via an abbreviated angle 15, and the other end is fixed to the bottom frame 2a of the storage cart 1. Fixed.

A bracket 16 is attached to the upper end of the support column 13 on the opposite side to the tire entrance/exit 3, and a support pipe 18 is installed on the bracket 16. Both ends of a cloth hammock 19 of a predetermined length are fixed to the support pipe 18 and a pipe shaft 11a (hammock attachment shaft) located on the side of the tire entrance/exit 3 of the rotary arm 7, respectively.

In addition, a rotary arm 7 is provided on the bottom wall of the storage cart 1.
A stopper angle 20 is attached to which the pipe shaft 11b (kick-out shaft) of the rotary arm 7 comes into contact, and when the rotary arm 7 rotates counterclockwise, the stopper angle 20 contacts the pipe shaft 11b (kick-out shaft) of the rotary arm 7. ).

In addition, in FIG. 4, 21 is a slope used when taking out or carrying in the green tires W from the storage trolley 1, and 22 and 23 are flexible wheels and fixed wheels attached to the bottom of the storage trolley 1. be.

Next, the operation of loading and unloading green tires W into the storage cart 1 will be explained with reference to FIGS. 3 and 4.

First, when the tire W is stored in the hammock 19 of the storage cart 1 as shown in FIG. It is urged to rotate counterclockwise about the pipe shaft 8 as a fulcrum, and this force is supported by the stopper angle 20.

Next, when taking out the tire W from the storage cart 1 in the above state, as shown in FIG.
a, 11b and rotate it clockwise, the rotating arm 7 rotates clockwise about the pipe shaft 8, and at the same time, the pipe shaft 11b moves away from the stopper angle 20 and the hammock 19
The tire W supported by the kick-out pipe shaft 1
1b rotates toward the tire entrance/exit 3 side while being pressed.

Then, when the rotary arm 7 is further rotated and the center of gravity of the tire W passes through the pipe shaft 8, which is the center of rotation, as shown in FIG. The tire W can be taken out from the storage cart 1 by riding on the bicycle.

Conversely, when storing the tires W in the storage cart 1, the arms 10a and 10b of the rotary arm 7 are set in the state shown in FIG. If the arms 10a and 1 are made heavy, the arms 10a and 1 can be
0b is stopped in contact with the side frame 2b. Then, from the above condition, the tire W
When the tire W is rolled on the slope 21 and placed on the hammock 19, and the tire W is further pushed toward the tire storage chamber 5, the rotary arm 7 rotates counterclockwise about the pipe shaft 8.

Then, as shown in FIG. 3, when the center of gravity of the tire W passes through the axis of the pipe shaft 8, the weight of the tire W,
b is converted into a force that pushes down the rotating arms 11a,
11b further rotates counterclockwise, and as shown in FIG.
It stops when it comes into contact with. Further, the support pipe 18 is
It also serves as a stopper for stopping the tire W from moving strongly to the left in FIG. 1 when the tire W is stored in the storage cart 1.

With the structure described above, even heavy tires W can be easily taken in and out of the storage cart 1, and the tires W stored in the storage cart 1 are always kept in the rotating arm 7 by the tension of the hammock 19. The stability is extremely good because the force that returns it in the counterclockwise direction works.

〔Effect of the invention〕

As described above, the present invention provides two arms each having an L-shaped cross section, and a hammock mounting shaft and a kicker that connect the front and rear ends of the two arms at a predetermined distance from each other at a tire entrance/exit. A rotating arm composed of a shaft and a bearing pipe connecting the elbow position of the arm is provided, and the short side of the arm is arranged at the bottom of the tire inlet/outlet side so as to face the tire inlet/outlet side, and the bearing of the rotating arm is provided. A rotation center for supporting the pipe is provided, one end of the hammock is fixed to a hammock mounting shaft of a rotating arm located at the end on the tire entrance/exit side, and the other end of the hammock is located on the opposite side from the tire entrance/exit. Since it is fixed near the upper end of the side frame, even when storing particularly heavy raw tires in a storage trolley, they can be easily taken in and out without requiring a lot of effort and time, and the raw tires can be stored in a stable condition. There is an effect that can be done.

Furthermore, since the structure is simple, it can be manufactured at low cost and maintenance is easy.

[Brief explanation of the drawing]

Fig. 1 is a front view of a storage cart embodying the present invention, Fig. 2 is a side view of the storage cart, Figs.
The figure is an explanatory view of the operation when taking tires in and out from the storage cart. 1...Storage trolley, 2b...Side frame, 3...
...Tire entrance/exit, 5...Tire storage room, 7...Rotating arm, 10a, 10b...Arm, 11a...
...Hammock mounting shaft, 11b... Kick-out shaft, 12
... Bearing pipe, 19 ... Hammock, W ... Raw tire.

Claims (1)

[Claims] 1. In a tire storage cart with a tire storage chamber provided with a tire entrance/exit on one side, and a hammock for supporting tires stretched over the tire storage chamber, the tire storage cart has a tire storage chamber provided with a tire entrance/exit. A rotary arm is provided, which is composed of two arms, a hammock mounting shaft and a kick-out shaft that connect the front and rear ends of the two arms at a predetermined distance, and a bearing pipe that connects the elbow position of the arm. , a rotation center for supporting a bearing pipe of the rotary arm is provided at the bottom portion of the tire entrance side, with the short side of the arm facing toward the tire entrance side; one end of the hammock is located at the tire entrance side end; At the same time, it is fixed to the hammock mounting shaft of the rotating arm located at
A tire storage trolley characterized in that the other end of the hammock is fixed near the upper end of a side frame located on the opposite side from the tire entrance/exit.