JPH092278A - Conveyed material supporting device - Google Patents

Abstract

PURPOSE: To provide a conveyed material supporting device for supporting conveyed material in such a way as to be protected from vibration, impact, and the like while effectively preventing also rolling in particular. CONSTITUTION: Three coil springs 6 or more are vertically arranged at equal spaces apart on one circumference on a base 2, and a load bearer 8 is supported on the coil springs 6. A supporting shaft 4 is provided at the center of a circumterence, and the lower end part of the supporting shaft 4 is connected to the base 2 through a spherical bearing 5, while the upper end part is connected to the load bearer 8 through a spherical bearing 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier support device for supporting a carrier on a carrier so that the carrier is not subject to vibration or impact.

[0002]

2. Description of the Related Art It is conventionally known to support a conveyed product by using a vibration absorbing device such as a coil spring or a shock absorber in order to protect the conveyed product from vibration and shock during transportation.

[0003]

However, the conventional vibration absorbing device can only absorb the vibration and the shock in one direction (vertical direction), and when the vibration and the shock are simultaneously applied in the orthogonal direction, the vibration and shock can be sufficiently absorbed. There was a drawback that could not be absorbed. For this reason, for example, in a carrier truck used for transporting an extremely thin sheet glass having a thickness of 1 mm or less in a factory, horizontal vibration is absorbed by a conventional coil spring or a vibration absorbing device such as rubber. However, there was a risk that problems such as cracks would occur.

[0004]

SUMMARY OF THE INVENTION An object supporting device of the present invention is intended to solve the above-mentioned problems. Three or more coil springs are arranged on a base at equal intervals on one circumference. The load receiving base is supported vertically on the spring, and a supporting shaft is provided at the center of the circumference. The lower end of the supporting shaft is connected to the base and the upper end is connected to the receiving base via spherical bearings. It is characterized by being done. Further, the present invention is characterized in that the above-mentioned conveyed article supporting device is provided at each of at least four corners to support the conveyed article.

[0005]

When the spherical bearing is operated, the support shaft tilts freely and the coil springs around the support shaft expand and contract to absorb not only vertical vibration but also horizontal vibration and shock.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows one of the conveyed object supporting devices in a longitudinal section, and FIG. 2 shows a section taken along the line AA. 1 is a frame for receiving the cargo of the carrier truck, 2 is a bolt 3 on the frame 1 for receiving the cargo
It is a base fixed by. A spindle 4 is provided at the center of the base 2.
The lower end of is connected via a spherical bearing 5. Reference numeral 6 denotes four coil springs vertically arranged side by side by a spring holder 7 on one circumference centering on the support shaft 4,
The load receiving base 8 is supported by the four coil springs 6. The upper end of the support shaft 4 is connected to the load receiving base 8 by a spherical bearing 9. 10 is a coil spring 6
Is a spring money received on the lower surface of the. Spherical bearing 5
And the spherical bearing 9 includes a spherical body 11 through which the support shaft 4 is inserted,
It comprises a seat portion 12 which rotatably supports the spherical body 11. A head portion 13 is formed at one end of the support shaft 4 to prevent the support shaft 4 from coming off, and a screw groove 14 is formed at the outer periphery of the other end. A nut 15 is screwed into the support screw groove 14 so that the nut 15 By tightening, the load receiving base 8 is pulled down and each coil spring 6 is kept in a slightly compressed state.

However, as shown in FIG. 4 and subsequent figures, this carrier support device 4 is arranged on the cargo receiving frame 1 at appropriate intervals.
A machine is provided so that the four corners of the rectangular parallelepiped conveyed object 16 can be supported by the conveyed object supporting device. A hook-shaped notch 17 is formed on the upper surface of the load receiving base 8 of each of the transported object supporting devices so that the corners of the transported object 16 can be aligned with each other.

The hand-carrying carrier 20 shown in FIG. 4 and subsequent figures is equipped with an arm 21 that moves up and down and up and down in order to load and unload the carrier 16 onto the carrier supporting device. The structure is explained in. The rubber cushion 2 is provided near the both side edges of the carriage 20 having four wheels 22.
3, a pair of the cargo receiving frame 1 is vertically installed with 3 interposed therebetween.
On the cargo receiving frame 1, the transported object supporting devices are fixedly installed in groups of four. An elevating table 24 that moves up and down by the operation of the hydraulic cylinder 39 is provided between the pair of load receiving frames 1. Reference numeral 25 is a foot-operated pedal that feeds hydraulic oil to the hydraulic cylinder 39 to move the lifting table 24 up and down, and 26 is a manual handle of the carrier 20. A guide rail 27 is horizontally provided on the elevating table 24, and an arm 21 is provided so as to be movable back and forth along the guide rail 27. 2
Reference numeral 8 denotes a roller which is provided at the base of the arm 21 and rolls on the guide rail 27. A stage 29 with a rotation mechanism is provided at the tip of the arm 21 so that the article 16 can be supported on the stage 29. Further, 30 is a pulley 31 to move the arm 21 back and forth along the guide rail 27.
35 is a timing belt stretched around 35, and 36 is a pulley 35
A bevel gear 37 is interposed between the handle shaft tip of the manual handle 36 and the rotating shaft of the pulley 35, and the rotation of the manual handle 36 is orthogonally transmitted to rotate the pulley 35. The timing belt 30 and the arm 21 are fixed by the connecting portion 38. Therefore, when the manual handle 36 is rotated, the pulley 3
The timing belt 30 is circulated and rotated through the arm 2
1 can be moved back and forth along the guide rail 27.

In the transport carriage 20 thus constructed, the arm 21 can support the transport object 16 by advancing the arm 21 to move the stage 29 under the transport object 16 and raising the elevating table 24 in that state. . Then, by moving the arm 21 backward and lowering the elevating table 24, the conveyed object 16 can be supported on the conveyed object supporting device as illustrated. Therefore, the vibration during the conveyance is absorbed by the coil spring 6, and particularly with respect to the lateral shake, the support shaft 4 tilts in the direction of the shake, so that the conveyed article 16 is maintained in the horizontal state as shown in FIG. You can move to the left and right to absorb the shaking. Therefore, it is possible to prevent damage to the plate glass or the like, which is the content. Further, lowering of the conveyed object 16 from the conveyed object supporting device can be performed by the reverse procedure to the above. In this embodiment, four coil springs 6 are provided around the support shaft 4, but five or more coil springs 6 may be provided at equal intervals, or three coils may be provided at equal intervals. Good.

[0010]

As described above, the transported object supporting apparatus of the present invention is
When the spherical bearing operates, the support shaft tilts freely and the coil spring around it expands and contracts to absorb not only vertical vibration but also horizontal vibration and shock. The effect of being able to properly protect the transported object from vibrations.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a conveyed object supporting device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side view showing an operating state of the conveyed object supporting apparatus according to the present invention.

FIG. 4 is a vertical cross-sectional view of a carrier truck provided with a carrier support device according to the present invention.

FIG. 5 is a right side view of FIG. 4;

FIG. 6 is a plan view of FIG. 4;

[Explanation of symbols]

 1 Frame for receiving cargo 2 Base 4 Support shaft 5 Spherical bearing 6 Coil spring 8 Bearing cradle 9 Spherical bearing 16 Transported goods

Claims (2)

[Claims] 1. Three or more coil springs are vertically arranged at equal intervals on a base on a base to support a load carrier on the coil springs, and at the center of the circumference. A conveyed object supporting device, wherein a support shaft is provided, and a lower end of the support shaft is connected to the base and an upper end thereof is connected to the load receiving base through spherical bearings, respectively. 2. A conveyed object supporting device, wherein the conveyed object supporting device according to claim 1 is arranged at least at each of four corners to support an conveyed object.