JP3389183B2 - Rotatable luggage carrier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luggage table which can be rotated while a luggage is loaded.

[0002]

2. Description of the Related Art When a luggage is loaded in a part of a space such as a pallet or the like, once it is loaded up to a predetermined height, the loading position must be changed. To do so, either change the loading place to the side of the empty space or turn the pallet etc. to bring the empty space to the loading place. The latter method is more convenient,
This requires a great deal of force. Therefore, it depends on a forklift, etc., but if there is no such equipment, it cannot be helped, and even if it is equipped, it cannot be done if there is no space for the forklift to move.

[0003]

For this reason, a commercially available turntable or the like is laid under the pallet, but this kind of turntable is very expensive.
There are also those that have a drive mechanism and rotate automatically, but this makes it more expensive and the running cost cannot be ignored. Therefore, the present invention provides a rotatable loading table having a simple structure that can be moved by a light force.

[0004]

Means for Solving the Problems The above lower object, the present invention is described in claim 1, who can place luggage
A frame in the form attached to the center of the back surface of the frame, relative flexion rotation is possible bending times relative to the frame
( EN) Provided is a rotatable luggage mounting table including a central leg having a rolling bearing, and a peripheral rolling leg having three or more peripheral wheels mounted around the central leg and having a drooping length shorter than that of the central leg. It is a thing.

By this means, when an eccentric load is applied to the frame, the central leg bends and the portion where the eccentric load is applied is lowered. On the other hand, since the peripheral rolling legs having a drooping length shorter than that of the central leg are attached around the central leg, at least two peripheral rolling legs provided in the lowered portion are grounded,
It will be a three-point contact with the center leg. In this case, the central leg is
It is possible to rotate relative to the frame in a bent state,
Moreover, since the peripheral rolling leg rolls, if the frame is pushed in the rotating direction in this state, the frame rotates around the central leg with a light force.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional side view of a rotatable luggage mounting table (hereinafter referred to as a mounting table) showing an example of the present invention, FIG. 2 is a rear view, and FIG. 3 is a perspective view. Frame 10, a central leg 12 attached to the center of the back surface of the frame 10 and capable of relative bending and rotation with respect to the frame 10, and a number of three or more attached around the central leg 12. And a peripheral rolling leg 16 having a rolling wheel 14 having a shorter drooping length.

In this case, the frame 10 is one on which the luggage 18 is loaded, and the loading mode may be direct or indirect. However, since the loaded loads 18 often move further, it is common to place the pallet 20 and load the loads 18 thereon. As long as the frame 10 is flat, the shape may be circular, rectangular, or polygonal, but considering that the pallet 20 is placed, it can be said that a rectangular shape according to the shape is preferable. If the pallet 20 is to be placed on the frame 10, the frame 10 may be only the frame as shown in FIG.

A central leg 12 is provided at the center of the rear surface of the frame 10.
Is attached. Since the central leg 12 needs to be able to bend and rotate relative to the frame 10,
The bent rotary bearing 22 receives it. The bearing 22 of the present example is of a ball joint type, and the seat 22b of the ball 22a is sewn to the frame 10 with a bolt or the like, and a leg portion 24 is formed on the rod 22c thereof to be grounded. still,
The directions of the seat 22b and the rod 22c may be opposite.
Further, according to the double method in which the upper and lower bending rotary bearings 22 are used, the bending and rotatability are more excellent. In this case, it is preferable to attach a grounding body 24a such as rubber having a high friction coefficient to the back surface of the leg portion 24 so as not to slip.

FIG. 4 shows another example of the bending rotary bearing 22, but this example shows a ball bearing system or a taper roller bearing system capable of receiving a thrust load. The outer ring 22d and the seat 22e for receiving the outer ring 22d are spherical (the latter is shown in the figure) so that they can be bent.

Around the center leg 12, at least three or more peripheral rolling legs 16 are attached. The peripheral rolling legs 16 are constituted by the rolling wheels 14, and the condition is that the drooping length is set shorter than that of the central leg 12, and each rolling direction is a line connecting with the central leg 12. On the other hand, it is facing tangentially. Therefore, if the caster wheel 14 is a caster that naturally changes its direction in the rolling direction, it is not necessary to set this direction. However, since the caster type wheel is weak in strength, it is preferable to use the angle-invariant type wheel 14 for mounting in this direction.

The number of peripheral rolling legs 16 may be any number as long as it is three or more. If the frame 10 has a circular shape, it is generally about 3 pieces, and if it is a square shape, about 4 pieces are common (there may be many). The mounting position may be anywhere as long as the rolling direction of the rolling wheels 14 is accurately set. For example, in the case of the frame 10 having a rectangular shape, a position on a diagonal line symmetrical with the central leg 12 or The central position of each side is suitable, and among them, it is preferable to mount it at the central position of each side because it can be mounted accurately and the distance from the central leg 12 is long and short.

The peripheral rolling legs 16 are set to have a drooping length shorter than that of the central leg 12. This is to float each peripheral rolling leg 16 when the frame 10 is horizontal, and is biased to the frame. This is because one of them can be grounded when a load is applied. The peripheral rolling legs 16 that are in contact with the ground are generally two adjacent to each other, and are for contacting the central leg 12 at three points for convenience. The height difference between the peripheral rolling leg 16 and the central leg 12 is appropriately set, but in the case of a shape adapted to the pallet 20, about 5 to 30 mm is suitable. The hanging lengths of the peripheral rolling legs 16 may be the same.

As described above, when the loads 18 are piled up on the frame 10 (or via the pallet 20), the load 18 is naturally an unbalanced load. Now, taking the rectangular frame 10 having the peripheral rolling legs 16 attached to the central positions of the respective sides as an example, first, the peripheral rolling legs 16 having a longer distance on the side where the load is applied, that is, on the short side 10a side. The peripheral rolling leg 16 descends and comes into contact with the ground, and then, one of the peripheral rolling legs 16 on the side of the long side 10b having the largest load comes into contact with the ground and becomes a convenient three-point ground with the central leg 12.

When the frame 10 is rotated in this state,
The grounded peripheral leg 16 rotates around the central leg 12. At this time, since the central leg 12 can be bent and rotated, and the peripheral rolling leg 16 is composed of the rolling wheels 14, this force is sufficient. Therefore, even if the load 18 is heavy,
You will be able to rotate. In addition, if the distance from the central leg 12 is short or long among the peripheral rolling legs 16 that are in contact with the ground, the load applied to each peripheral rolling leg 16 is different, and the moving path is different, so that it does not rotate. It requires less power,
Absorb the inclination and unevenness of the ground contact surface. For example, if it is a normal pallet size, about 2 tons can be fully loaded and rotated.

In this way, the frame 10 (pallet 2
When a certain amount of luggage 18 is stacked on a part of 0), the frame 10 is turned to bring the empty space to the loading place, and this time the luggage 18 may be stacked. Therefore, the loading place can be fixed, the space is not restricted, and the efficiency is improved. Then, when the parcels 18 are piled up by a certain amount, the pallet 20 on the frame 10 is scooped up by a forklift or the like and moved to a desired place.

In this case, since the position of the fork insertion port in the pallet 20 is fixed, the forklift cannot be used unless there is a space in which the forklift can move in that direction. However, by rotating the frame 10, this insertion port can also be brought to an arbitrary position, so that, for example, a forklift can be used even in a narrow space where only forward and backward movement is possible, which is convenient. It dramatically increases.

[0017]

As described above, according to the present invention, when an eccentric load is applied to the frame, at least two peripheral rolling legs are lowered to be in contact with the center leg, which is a three-point contact with the center leg. When pushed in the direction, the peripheral rolling leg rolls and rotates around the central leg. In this case, the central leg can be bent and rotated freely, and the two peripheral rolling legs that are in contact with the ground roll, so that the force required for rotation is small, and even if the contact surface has an inclination or unevenness. , Absorb this. Further, since the structure is simple, the manufacturing cost is low and the running cost is low.

[Brief description of drawings]

FIG. 1 is a cross-sectional side view of a rotatable luggage mounting table showing an example of the present invention.

FIG. 2 is a back view of a rotatable luggage mounting table showing an example of the present invention.

FIG. 3 is a perspective view of a rotatable luggage mounting table showing an example of the present invention.

FIG. 4 is a partial cross-sectional side view of a main part of a rotatable luggage mounting table showing another example of the present invention.

[Explanation of symbols]

10 frames 12 Central leg 14 wheels 16 peripheral rolling legs 18 luggage 22 Bending rotary bearing

Claims (2)

(57) [Claims] 1. A square frame on which a luggage can be placed, and a bending rotary bearing attached to the center of the back surface of the frame and capable of bending and rotating relative to the frame.
A rotatable luggage mounting table including a central leg and a peripheral rolling leg that has three or more peripheral legs mounted around the central leg and having a shorter drooping length than the central leg. 2. The peripheral rolling leg is on a diagonal line symmetrical with the central leg.
It is attached at the position of or at the center of each side of the frame,
The rotatable loading table according to claim 1, wherein the rolling wheel is an angle-invariant type rolling wheel whose rolling direction is directed in a tangential direction of a line connecting to the central leg.