JPH10146732A - Work carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a work carrying device even in a building whose ceiling height is comparatively low by providing a work mounting pallet which has a structure capable of being guided by a main guide rail and first and second sub-guide rails and to which handle to impart manually pushing force is added. SOLUTION: A pallet 100 moves leftward by manually pushing force, and a guide object member of the pallet 100 is gradually fitted to a guide groove of a main guide rail 10. The pallet 100 is guided by both sub-guide rails 20 and the main guide rail 10 up to completely transferring to the main guide rail 10. In a condition where the pallet 100 is completely transferred to the main guide rail 10, a work space is formed between a floor 80 and a car body 90. Then, a tire or the like is installed on the car body 90 while properly adjusting a moving position of the pallet 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work transfer device for transferring a work at a high place.

[0002]

2. Description of the Related Art In an automobile outfitting assembly line, underbody parts (tires, suspensions, brakes, etc.),
The operation of attaching a muffler or the like to the lower surface of the vehicle body is performed. At that time, in order to enable the operation under the vehicle body, a lifting transfer device as shown in FIG. 6 is used.

The lifting and conveying device comprises a hanger 2 for holding a vehicle body 1, a guide rail 3 for movably supporting the hanger 2 via a pair of wheels 2a attached to an upper portion of the hanger 2, and a guide rail 3 for the hanger 2. 3 and a conveyor chain 4 stretched above.

The upper end of the hanger 2 is provided with an upward projection 2b, and the conveyor chain 4 is provided with a downward arm 4a. Conveyor chain 4
When the arm 4a is driven to the left and the arm 4a engages with the protrusion 2b, the moving force of the conveyor chain 4 is transmitted to the hanger 2, and as a result, the vehicle body 1 moves along with the hanger 2 along the guide rail 3 to the left. Is transferred to

[0005] The guide rail 3 and the conveyor chain 4 constitute a so-called overhead conveyor.

[0006]

In this conventional transfer device, as shown in FIG. 7, a guide rail 3 and a conveyor chain 4 are arranged in a loop, and the assembled vehicle body 1 is assembled at the end of the assembly process. The lowered empty hanger 2 is circulated to the beginning of the assembly process.

[0007] Therefore, a large installation space is required, and a large amount of construction cost is involved when performing relocation work. Further, due to its structure, there is a disadvantage that it cannot be installed in a building with a low ceiling height.

An object of the present invention is to provide a work transfer apparatus which can reduce installation space and facilitate relocation work in view of such a situation, and can be installed in a building having a relatively low ceiling height. .

[0009]

According to the present invention, there is provided a main guide rail horizontally disposed at a predetermined ground height, supported horizontally and vertically movable, and connected to one end of the main guide rail in a raised state. A first sub-guide rail for raising the work, a second sub-guide rail for lowering the work which is supported horizontally and vertically so as to be movable up and down, and which is connected to the other end of the main guide rail in a raised state; It is characterized in that it has a structure capable of being guided by the guide rail and the first and second auxiliary guide rails, and includes a work mounting pallet provided with a handle for applying a manual pressing force.

[0010]

FIG. 1 shows an embodiment of a work transfer device according to the present invention.
Are horizontally arranged at a predetermined ground level along the assembly line. Also, the sub guide rails 20 and 30 located on the start end side and the end side of the main guide rail 10 are described.
Is supported horizontally and vertically by lifters 40 and 50, respectively.

As shown in FIG. 2, which is a cross-sectional view taken along line AA of FIG. 1, a pair of main guide rails 10 are arranged at predetermined intervals in the width direction of the assembly line. Each of these main guide rails 10 has a U-shaped cross section, and is fixedly supported on a ceiling 70 via a support member 60 such that the respective guide grooves 11 face each other.

The auxiliary guide rail 20 has a length slightly larger than the front and rear length of a work mounting pallet 100 described later shown in FIG. 3, and the arrangement interval of the main guide rails 10 in the width direction of the assembly line. A pair is provided at the same interval as the above.

Each of the sub guide rails 20 has a U-shaped cross section similarly to the main guide rail 10, and the direction of their guide grooves (not shown) is the same as that of each of the main guide rails 10. is there.

A work mounting pallet 100 shown in FIG.
Is a pair of left and right guided members 101 parallel to each other,
A planar U-shaped base 103 composed of a connecting member 102 for connecting the front ends of the guided members 101 to each other is provided.

Each of the guided members 101 has a plurality of rollers 104 partially exposed on the upper surface and lower surface thereof and a plurality of rollers 105 partially exposed on the outer surface thereof, each having a predetermined distance in the longitudinal direction. It is arranged in.

Each guided member 101 has a bracket 106 fixed to the front and rear portions of the inner surface thereof, and a work receiving member 107 is attached to the lower end of the bracket 106, respectively.

Each of the workpiece receiving members 107 is pivotally supported by the corresponding bracket 106 so as to be rotatable about the vertical axis of the corresponding bracket 106. On the lower surface of the work receiving member 107 located on the rear side of the guided member 101, a caster 108 as a wheel for taxiing is provided.

On the other hand, a hand push handle 110 for moving to a high place and a wheel 111 for running on the ground are attached to the lower surface of the leading end of each of the guided members 101 via brackets 109, respectively. On the upper surface of 10, a hand push handle 112 for ground movement is protruded.

The undercarriage assembling operation using the work transfer device having the above-described configuration is performed in the following procedure.

A. The pallet 100 is a caster 10
8 and the wheels 111 are provided, so that they are movable. Therefore, as shown in FIG. 4, after lowering the sub guide rail 20 to the lower end by the lifter 40, the empty pallet 100 is pushed toward the lifter 40, and the respective guided members 101 are moved to the respective sub guide rails 20. The guide groove (the same groove as the guide groove 11 shown in FIG. 2) is fitted. Thereafter, the empty pallet 100 moves while being guided by the sub guide rail 20, and then moves onto the sub guide rail 20.

B. Each work receiving member 1 of the pallet 100
07 is set to a work receiving position shown by a solid line in FIG.
Is placed. That is, as shown in FIG. 5, a predetermined lower surface support portion of the vehicle body is placed on the upper surface of the tip end of the work receiving member 107. In addition, a seating tool (not shown) having a shape conforming to the uneven shape of the lower surface supporting portion of the work is attached to the upper surface of the distal end of the work receiving member 107.

C. As shown in FIG. 1, the sub guide rail 20 is raised by the lifter 40. The lifter 40
Automatically stops when the sub guide rail 20 has risen to the rising end shown by the chain line, that is, when it has risen to the same height as the main guide rail 10.

D. When the lifting of the sub guide rail 20 is completed, a leftward pressing force in FIG. 1 is applied to the pallet 100 via the push handle 110 of the pallet 100.

E. The pressing force causes the pallet 100 to move leftward, thereby causing the guided member 101 of the pallet to move.
Are gradually fitted into the guide grooves 11 of the main guide rail 10 shown in FIG. It should be noted that the pallet 100 stays on the sub guide rail 2 until the pallet 100 is completely transferred to the main guide rail 10.
0 and the main guide rail 10.

F. Pallet 100 is the main guide rail 10
In a state where the vehicle has completely moved, a work space is formed between the floor 80 and the vehicle body 90 as shown in FIG. Therefore, the underbody parts such as the tires are assembled at predetermined positions on the lower surface of the vehicle body 90 while appropriately adjusting the moving position of the pallet 100.

G. When the work of assembling the parts is completed, the sub-guide rail 30 is raised to the rising end by the lifter 50, and then the pallet 100 is moved leftward to move onto the sub-guide rail 30.

H. Secondary guide rail 3 by lifter 50
0 is lowered to the lower end. As a result, the tire 91 assembled to the vehicle body 90 lands, so that each work receiving member 107 of the pallet 100 is rotated to the position shown by the dashed line in FIG. 3 and retracted from the support surface of the vehicle body 90.

I. The pallet 100 is pulled out to the left from the sub guide rail 30 by using the ground push handwheel 112 shown in FIG. Then, this empty pallet 10
0 to the lifter 40 side, and the guide rail 2
Set to 0.

J. The assembled vehicle body 90 is moved to the next step.

As described above, according to the work transfer device, the vehicle body can be transferred at a high place without using transfer means such as a hanger and an overhead conveyor.

It should be noted that the pallet 100 is connected to the main guide rail 1
During the movement along zero, the rollers 104 and 105 provided on the guided member 101 rotate in contact with the inner surface of the guide groove 11, as shown in FIG. Therefore, the pallet 100 can be easily moved by the pushing force, and the pallet 100 on the sub guide rails 20 and 30 can be moved.
Is easy for the same reason.

In the above embodiment, the main guide rail 10 is suspended from the ceiling 70 by the support member 60,
The main guide rail 10 may be supported by a column.

In the above embodiment, the pallet 100
Has a ground running function, but this pallet 100
It is also possible to remove the casters 108 and wheels 111 from the pallet and carry the pallet 100 by a dedicated cart.

[0034]

According to the present invention, since an overhead conveyor or a hanger is not used, the installation space can be reduced, the relocation work can be facilitated, and the present invention can be applied to a building having a relatively low ceiling height. can get.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

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

FIG. 3 is a perspective view showing the structure of a pallet.

FIG. 4 is a conceptual diagram showing a state immediately before a pallet is set on a sub guide rail.

FIG. 5 is a plan view showing a state where a pallet is guided by a guide rail.

FIG. 6 is a conceptual diagram showing a main part of a conventional work transfer device.

FIG. 7 is a plan view showing a moving path of a hanger in a conventional work transfer device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main guide rail 11 Guide groove 20 and 30 Secondary guide rail 40 and 50 Lifter 90 Body 100 Pallet 101 Guided member 102 Connecting member 103 Base 104 and 105 Roller 107 Work receiving member 108 Caster 110 Hand push handle 112 Hand push handle

Claims (2)

[Claims] 1. A main guide rail horizontally disposed at a predetermined ground height, a first guide for raising a work, which is horizontally and vertically movable and connected to one end of the main guide rail in a raised state. A sub-guide rail, a second sub-guide rail for lowering a work, which is horizontally and vertically movable and connected to the other end of the main guide rail in a raised state; and the main guide rail and the first and second sub-guide rails. A work transfer device, having a structure capable of being guided by the second auxiliary guide rail, and including a work mounting pallet provided with a handle for applying a manual pressing force. 2. The work transfer device according to claim 1, wherein the pallet is provided with wheels for traveling.