JP2000053043A - Conveyor for assembling vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable workers to work in an assembly line without taking a deep lower back bent posture in the lower part working sections where parts are assembled into the lower part of a body on a vehicle conveyor. SOLUTION: With regard to a conveyor for assembling vehicles made so that a vehicle conveyor 2 makes synchronized actuation with a workers' conveyor 3 adjacently arranged at least to one of its sides, the top surface of the workers' conveyor 3 is arranged lower than that of the vehicle conveyor 2 by a content distance H but parallel to each other in a lower part working section 1b of the assembly line 1. In the lower part working section 1b, workers do not have to take a deep lower back bent posture and the at-hand position where work is carried out at an identical region with a car body B can be prevented from moving even if conveyors 2, 3 progress.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor system for assembling automobiles and other vehicles, and more particularly to a vehicle conveyor arranged along an assembly line and a vehicle conveyor adjacent to at least one side of the vehicle conveyor. The present invention relates to an improvement in which a conveyor for workers arranged in parallel is operated synchronously.

[0002]

2. Description of the Related Art Conventionally, in such a conveyor device for assembling a vehicle, a conveyor for workers, which is disposed at a lower position than the conveyor for vehicles, is disposed with an upward gradient toward a downstream of an assembly line. It is known that the height difference of a worker conveyor with respect to a vehicle conveyor is gradually reduced toward the downstream of an assembly line (for example, Japanese Patent Application Laid-Open No. Hei 6-171565).
Reference). In such a vehicle assembly conveyor,
While the worker conveyor moves from the upstream side to the downstream side of the assembly line, the worker on the worker conveyor moves from the upper part to the lower part of the body on the vehicle conveyor without a large waist bending posture. Parts can be assembled one after another.

[0003]

However, in the above-mentioned conventional apparatus, the upper surface of the worker conveyor is inclined. Therefore, while the parts are assembled to the same part of the vehicle body, the vehicle conveyor and the worker conveyor are not mounted. With the progress of the conveyor, the position of the operator's hand moves relatively downward, which greatly restricts the setting of the work process time for the same part.

[0004] The present invention has been made in view of such circumstances, and can easily set the work process time of the same part, and without forcing the operator to have a large waist bending posture as in the related art. It is an object of the present invention to provide a vehicle assembling conveyor device capable of assembling parts at an upper portion and a lower portion of a vehicle body on a vehicle conveyor and contributing to an improvement in work efficiency.

[0005]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a vehicle conveyor arranged along an assembly line and a vehicle conveyor arranged at least adjacent to at least one side of the vehicle conveyor. A conveyor assembly for a vehicle assembly, wherein the upper surface of the worker conveyor is arranged flush with the upper surface of the vehicle conveyor on an assembly line. A lower working section is provided in which the upper surface of the worker conveyor is lower than the upper surface of the vehicle conveyor by a predetermined distance and is arranged in parallel with the lower surface.

According to this feature, in the upper working section and the lower working section, each worker standing on the worker conveyor does not take a large waist bending posture during the work, and the upper part of the vehicle body on the vehicle conveyor and Parts can be assembled at the bottom. In addition, in each work section, the upper surface of the worker conveyor is kept flush or parallel with the upper surface of the vehicle conveyor 2, so that even when the parts are assembled to the same part of the vehicle body, regardless of the progress of both conveyors, Since there is no change in the operator's hand position, the setting of the operation process time for the same part can be easily performed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments of the present invention shown in the accompanying drawings.

FIG. 1 is a bird's-eye view of an automobile assembly line according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, FIG. 3 is a sectional view taken along line 3-3 of FIG. FIG. 5 is a sectional view taken along line 4-4 of FIG. 2, FIG. 5 is a bird's-eye view of the automobile assembly line according to the second embodiment of the present invention, FIG. 6 is a sectional view taken along line 6-6 of FIG.
6 is a sectional view taken along line 7-7 of FIG. 6, and FIG. 8 is a sectional view taken along line 8-8 of FIG.

First, the first embodiment of the present invention shown in FIGS. 1 to 4 will be described.

In FIG. 1 and FIG. 2, reference numeral 1 denotes an assembly line of an automobile factory. A conveyor pit 8 formed on a floor F along the vehicle conveyor 2 and a pair of workers adjacent to the left and right sides of the vehicle conveyor 2. Conveyors 3 and 3 are provided.

As shown in FIGS. 3 and 4, the vehicle conveyor 2 is formed in a known slat type by continuously attaching a large number of slats 5, 5... To a pair of left and right endless chains 4. The vehicle conveyor 2 is disposed so that the forward side 2a can move on a pair of left and right guide rails 7, 7 horizontally laid on a frame 6 installed on the bottom of the conveyor pit 8. At that time, the guide rails 7, 7
It is laid so that the upper surface of the vehicle conveyor 2 is flush with the horizontal floor F. The slats 5, 5 of the vehicle conveyor 2
A large number of receiving members 9, 9, ... that support the body B of the vehicle to be assembled at a fixed position are attached to the group at equal intervals.

Each of the worker conveyors 3 is also formed into a known slat type by continuously attaching a large number of slats 11 to a pair of left and right endless chains 4. The worker conveyor 3 also has a pair of left and right guide rails 7, 7 laid on a frame 12 installed on the bottom of the conveyor pit 8.
It is arranged so that the traveling side 3a can move on the upper side. At this time, in the assembly line 1, in the upper working section 1a where parts are assembled on the upper part of the vehicle body B on the vehicle conveyor 2, the upper surface of the worker conveyor 3 is flush with the upper surface of the vehicle conveyor 2 and the floor F, In the lower working section 1b in which parts are assembled to the lower part of the vehicle body B, the guide rails 13, 13 are laid so as to be lower than the upper surface of the vehicle conveyor 2 and the floor F by a predetermined distance H and to be parallel thereto. The assembly line 1 has an upper working section 1a and a lower working section 1b.
Is provided with an extremely short inclined section 1c.

A work pit 14 whose bottom surface is flush with the top surface of the worker conveyor 3 is formed on the floor F corresponding to the lower work section 1b and the inclined section 1c.

[0014] The boundary between the forward side 2a of the vehicle conveyor 2 and the return side 2b that moves below it, and the forward side 3a of the worker conveyor 3 and the return side 3b that moves below it.
A driving means 17 (see FIG. 2) for synchronizing the forward sides 2a and 3a of the two conveyors 2 and 3 with each other and moving in the flow direction A of the assembly line 1 is provided at the boundary of.

In the drawings, reference numeral 15 denotes a fixed sidewalk formed along the outer side of the upper surface of each worker conveyor 3, 16 denotes a parts carriage, and M denotes an operator.

Next, the operation of the first embodiment will be described.

In assembling the automobile, the driving means 16 for the vehicle conveyor 2 and the worker conveyor 3 is operated to drive the vehicle conveyor 2 in which the parts B to be assembled are mounted on the receiving members 9, 9,. And the worker conveyor 3 carrying the workers M, M,.

Thus, the upper working section 1a of the assembly line 1
In this case, since the upper surface of the worker conveyor 3 is flush with the upper surface of the vehicle conveyor 2, the worker conveyor 3
The worker M standing can assemble the parts from the middle part in the height direction of the vehicle body B on the vehicle conveyor 2 to the upper part without a large waist bending posture, and when the work is completed, the first work is started. After returning to the position, the same operation is performed on the next vehicle body B.

In the lower working section 1b, the upper surface of the worker conveyor 3 is one step lower than the upper surface of the vehicle conveyor 2, so that the worker M standing on the worker conveyor 3
In this case as well, the parts can be assembled from the middle part in the height direction of the vehicle body B to the lower part on the vehicle conveyor 2 without a large waist bending posture, and when the work is completed, the part returns to the initial work start position. Then, the same operation is performed on the next vehicle body B.

As described above, in the upper working section 1a and the lower working section 1b, each worker M does not have to be forced to have a large waist bending posture during the work, and the efficiency of the assembly work can be improved. In addition, in each of the working sections 1a and 1b, the upper surface of the worker conveyor 3 is kept flush or parallel with the upper surface of the vehicle conveyor 2, so that the two conveyors 2 can be mounted while the parts are being assembled to the same part of the vehicle body B. , 3, no change occurs in the hand position of the worker M. Therefore, it is possible to easily set the operation process time for the same part.

Next, a description will be given of a second embodiment of the present invention shown in FIGS.

The vehicle conveyor 2 is arranged such that its upper surface occupies a position higher than the floor F by a certain distance H. To the group of slats 5, 5,... Of the vehicle conveyor 2, wheel stoppers 20, 20,... Of the vehicle body B to be assembled are attached at equal intervals.

On the other hand, in the upper conveyor section 1a of the assembly line 1, the upper surface of the operator conveyor 3 is flush with the upper surface of the vehicle conveyor 2, and in the lower operation section 1b, The conveyor 3 is disposed such that the upper surface thereof is lower than the upper surface of the vehicle conveyor 2 by a predetermined distance H and is flush with a horizontal floor F.

The other structure is the same as that of the above-mentioned embodiment. In the figure, the same reference numerals are given to the parts corresponding to the above-mentioned embodiment, and the description is omitted.

Also in this embodiment, the upper working section 1a
Also, in the lower working section 1b, each worker M does not have to be forced to take a large waist bending posture during the work. Moreover, in each of the work sections 1a and 1b, the upper surface of the worker conveyor 3 is kept flush or parallel with the upper surface of the vehicle conveyor 2, so that even during the work of assembling parts to the same part of the vehicle body B,
Regardless of the progress of the two conveyors 2, 3, there is no change in the hand position of the worker M.

The present invention is not limited to the above embodiments, and various design changes can be made without departing from the gist of the present invention.

[0027]

As described above, according to the present invention, a vehicle conveyor provided along an assembly line, and a worker conveyor provided adjacent to at least one side of the vehicle conveyor are provided. A conveyor assembly apparatus in which the upper surface of the worker conveyor is arranged flush with the upper surface of the vehicle conveyor on the assembly line, and the upper surface of the worker conveyor is arranged on the assembly line. In the upper and lower working sections, each worker standing on the worker's conveyor has a large waist bending posture. The components can be assembled to the upper and lower parts of the vehicle body on the vehicle conveyor without performing the above steps, and the efficiency of the assembly work can be improved. Moreover, in each work section, the upper surface of the worker conveyor is kept flush or parallel with the upper surface of the vehicle conveyor 2, so that even when the parts are assembled to the same part of the vehicle body, regardless of the progress of both conveyors, There is no change in the operator's hand position,
It is possible to easily set the operation process time of the same part.

[Brief description of the drawings]

FIG. 1 is a bird's-eye view of an automobile assembly line according to a first embodiment of the present invention.

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

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 of FIG. 2;

FIG. 5 is a bird's-eye view of an automobile assembly line according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 6;

FIG. 8 is a sectional view taken along line 8-8 in FIG. 6;

[Explanation of symbols]

 F · · · · Floor H · · · · Distance 1 · · · Assembly line 1a · · · · upper working section 1b · · · · lower working section 2 · · · · vehicle conveyor 3 · · · ... Conveyors for workers

Claims (3)

[Claims] 1. A vehicle conveyor (2) disposed along an assembly line (1), and a worker conveyor (3) disposed adjacent to at least one side of the vehicle conveyor (2). ) Wherein the upper surface of the worker conveyor (3) is flush with the upper surface of the vehicle conveyor (2) on the assembly line (1). A work section (1a) and a lower work section (1b) in which the upper surface of the worker conveyor (3) is lower by a predetermined distance (H) than the upper surface of the vehicle conveyor (2) and is arranged in parallel with the lower surface. A conveyor device for assembling a vehicle. 2. The conveyor according to claim 1, wherein the upper surface of the vehicle conveyor is flush with the floor of the assembly plant, while the lower conveyor section has an operator conveyor in the lower working section. 3) A conveyor device for assembling a vehicle, wherein the upper surface of 3) is disposed lower than the floor (F). 3. The conveyor (3) according to claim 1, wherein the upper surface of the vehicle conveyor (2) is higher than the floor (F) of the assembly plant, while the lower work section (1b) has an operator conveyor (3). A conveyor device for assembling a vehicle, wherein the upper surface of the vehicle is arranged flush with the floor (F).