JP2864938B2 - Unmanned car workbench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work table for an unmanned vehicle,
More specifically, the present invention relates to a work table of an unmanned vehicle configured so that an operator can easily move between adjacent unmanned vehicles.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an unmanned vehicle in which a work table is attached to an outer peripheral portion of the unmanned vehicle. According to this unmanned vehicle, the workbench moves with the unmanned vehicle. For this reason, the worker does not need to walk in accordance with the traveling of the unmanned vehicle, and can easily perform a complicated assembling operation or an assembling operation while losing posture.

[0003]

However, when a worker moves from a working table of an unmanned vehicle in which the worker is working to a working table of an unmanned vehicle traveling before and after the working table, a gap is formed between the unmanned vehicles. Therefore, there is a problem that the user has to pay sufficient attention to move to the work table of the unmanned vehicle before and after.
Therefore, there is a problem that the working efficiency is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to easily change a work platform of an unmanned vehicle from which an operator is working to a work platform of an unmanned vehicle running adjacent to the work platform. It is an object of the present invention to provide an unmanned vehicle work table that can be moved.

[0005]

According to a first aspect of the present invention, there is provided an unmanned vehicle which travels on a guide line continuously with another unmanned vehicle and has a work table provided in a horizontal direction. The gist of the present invention is to have a handover plate provided on a worktable so as to be able to undulate and overlap with a worktable of another adjacent unmanned vehicle.

According to a second aspect of the present invention, in the first aspect, the transfer plate includes a holding means for holding the transfer plate at a rising position and a lower position. The gist of the third invention is that, in the first invention, a storage recess is provided at a position corresponding to the handover plate on a workbench of an adjacent unmanned vehicle.

According to a fourth aspect of the present invention, in the first aspect, the handover plate is provided so as to be engageable with a descending device provided at a predetermined position on a traveling route of the unmanned vehicle at a rising position thereof. The gist of the present invention is that it is arranged at the lowered position by engagement with the lower gear.

According to a fifth aspect of the present invention, the handover plate is provided so as to be engageable with a flip-up device provided at a predetermined position on a traveling route of the unmanned vehicle, and at a lowered position thereof, is raised by the engagement with the flip-up device. The gist is to be placed in

[0009]

According to the first aspect, the transfer plate provided on the workbench of the unmanned vehicle is provided so as to be able to undulate. Therefore, when the vehicle travels on the guide line continuously with another unmanned vehicle, the work board of the adjacent unmanned vehicle is overlapped by setting the handover plate in a prone state. At this time, the worker can easily move to the work table of the adjacent unmanned vehicle across the transfer plate. Also, when the unmanned vehicle travels alone on the guide line, it travels with the bridge plate raised.

[0010] According to the second invention, at the first invention
By the holding means, the handover plate is held at the raised position, which is the raised state, and at the lowered position, which is, for example, the state where it is overlapped with the work table of the adjacent unmanned vehicle.

According to a third aspect, in the first aspect, the handover plate is placed in a storage recess formed in a workbench of an adjacent unmanned vehicle. According to a fourth aspect, in the first aspect, the handover plate is provided so as to be engageable with a descending device provided at a predetermined position on the traveling route of the unmanned vehicle at the upright position. For this reason, it is arranged at the lowered position by engagement with the lowering device.

According to a fifth aspect, in the first aspect, the handover plate is provided so as to be engageable with a flip-up device provided at a predetermined position on a traveling route of the unmanned vehicle. Therefore,
In a state where the transfer plate is located at the lowered position, the transfer plate is placed at the raised position by engagement with the lifting device.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 1, in a production line 1 in a factory, an unmanned vehicle 2 runs at a low speed while maintaining a plurality of predetermined intervals along a guide line L. On the upper surface of the unmanned vehicle 2, a lifter 4 on which a work 3 such as a vehicle is placed is provided. That is, this lifter 4
The work 3 is moved up and down, and the lifter 4 is controlled so that the height of the work 3 can be easily adjusted by the worker. At this time, the unmanned vehicle 2 enters the production line at a normal traveling speed along the guide line L, and is controlled at a low speed at the entrance 1a. Then, in the production line 1, a worker performs a predetermined operation, and when the operation is completed, the unmanned vehicle 2 moves from the exit 1b of the production line to the next at a normal traveling speed along the guide line L. They are heading to the production line.

As shown in FIGS. 2 and 3, a work table 5 is mounted on the front and one side of the unmanned vehicle 2 in a horizontal direction. The work table 5 is a front board 5a attached to the front of the unmanned vehicle 2 and having the same width and length as the unmanned vehicle 2.
And a side board 5b having a length equal to the length of the vehicle attached to one side of the unmanned vehicle 2 plus the length of the front board 5a.

At this time, on the front board 5a,
Casters 6 are provided on both the left and right sides of the back surface, and on the front and rear sides of the back surface of the sideboard 5b. For this reason, the front board 5a and the side board 5b are maintained in a stable state so that they do not tilt even if the worker gets on them. Further, the casters 6 allow the front board 5a and the sideboard 5b to easily follow the unmanned vehicle 2.

Further, a bumper 7 is provided on the front of the front board 5a, the front and rear surfaces of the sideboard 5b and the rear of the unmanned vehicle 2 on the work table 5, and when an obstacle collides with the bumper 7, the bumper 7 A collision sensor (not shown) provided therein detects the collision and stops the unmanned vehicle 2.

Further, at one end of the rear portion of the sideboard 5b, a hand plate 8 projecting rearward from the vehicle body of the unmanned vehicle 2 is provided.
Are rotatably mounted. FIG. 4 shows a rotating mechanism of the transfer plate 8 configured in the part A of FIG.

At a rear portion (portion A in FIG. 3) between the unmanned vehicle 2 and the sideboard 5b, the sideboard 5b and the handover plate 8 are rotatably connected by hinges 9.
In this embodiment, the hinge 9 connects the sideboard 5b and the handover plate 8 so as to be rotatable even on the side opposite to the unmanned vehicle 2. Furthermore, the side board 5b and the handover board 8
, The spring 10 is connected. That is, the handover plate 8 rotates downward from a state horizontal to the sideboard 5b (hereinafter, referred to as a horizontal state) to a position where the rear end 8a abuts on the floor G (floor surface abutment position). ing. At this time, the floor contact position is the descending position. Also,
The transfer plate 8 is configured to rotate upward from a horizontal state to a position (upward position) rotated upward by a predetermined angle (70 ° in this embodiment). The spring 10 rotates around the connecting portion 10a connected to the side board 5b while expanding and contracting with the transfer plate 8. At this time, the side board 5b and the cross board 8b are moved so that the dead point, which is the point where the spring 10 extends most when the cross board 8 is rotated, is rotated upward by a certain angle α ° from the horizontal state. And are linked to

That is, when the transfer plate 8 is located below the state where it has been rotated upward from the horizontal state by a certain angle α °,
The spring 10 urges the transfer plate 8 downward. That is, the spring 10 rotates the transfer plate 8 downward to the floor contact position. Further, when the transfer plate 8 is located above a state where the transfer plate 8 is turned upward by a predetermined angle α ° from the horizontal state, the spring 10 urges the transfer plate 8 upward. At this time, the transfer plate 8 rotates upward to a position where the force for rotating the transfer plate 8 downward by its own weight and the force for rotating the transfer plate 8 upward by the spring 10 are balanced, that is, the spring-up position. And it is positioned at that position. That is, the transfer plate 8 is provided so as to be able to undulate by rotating upward and downward.

Further, on the front upper surface of the sideboard 5b,
A storage recess 11 having a substantially square shape is formed. The handpiece 8 of the unmanned vehicle 2 traveling forward is placed in the storage recess 11 in response to the horizontal state. That is, the passing plate 8 closes a gap formed between the front and rear unmanned vehicles 2 and horizontally connects the sideboard 5b of the front unmanned vehicle 2 and the sideboard 5b of the rear unmanned vehicle 2 substantially flush with each other. Therefore, the worker can easily move to and from the work table 5 of the unmanned vehicle 2.

As shown in FIGS. 1 and 5, a lowering device 12 is provided near the entrance 1a in the production line 1. The lowering device 12 is provided on the sideboard 5b side of the unmanned vehicle 2 in the vicinity of the traveling locus of the unmanned vehicle 2, and extends in a horizontal direction fixed to a column 13 extending upward and at a height H of the column 13. And a pipe 14. The height H of the pipe 14 is set at a position slightly higher than the sideboard 5b of the unmanned vehicle 2, and when the unmanned vehicle 2 runs, the pipe 14 comes into contact with the raised passing plate 8 of the unmanned vehicle 2. ing. That is, the unmanned vehicle 2 is caused to travel forward while the passing plate 8 positioned at the jumping position is brought into contact with the pipe 14 so that the passing plate 8
Is gradually rotated downward. Then, the pipe 14 and the transfer plate 8 are brought into contact with each other until the transfer plate 8 becomes a certain angle α ° or less,
Thereafter, the transfer plate 8 is rotated downward by the urging force of the spring 10. At this time, the transfer plate 8 is rotated downward by the urging force of the spring 10 and is placed in the storage recess 11 of the unmanned vehicle 2 behind. That is, the transfer plate 8 is placed in the storage recess 11 of the unmanned vehicle 2 behind the transfer plate 8 so as to overlap with the work table 5. At this time, the position where the handover plate 8 is placed in the storage recess 11 of the unmanned vehicle 2 at the rear is the lowered position.

As shown in FIG. 1 and FIG. 6, a splashing device 15 is provided near the outlet 1b outside the production line 1. The flip-up device 15 is also provided on the sideboard 5b side of the unmanned vehicle 2 in the vicinity of the traveling route of the unmanned vehicle 2, and is provided so as to be vertically movable on a rail 16 erected on the floor G by a drive source (not shown). The pipe 17 is formed. That is, this pipe 17 is usually
The unmanned vehicle 2 which has been set to the lowest position where it does not hinder the traveling of the vehicle, has completed the work on the production line 1 and has started normal traveling along the guide line L to proceed to the next production line
Is separated from the storage recess 11 of the unmanned vehicle 2 at the rear,
It is in contact with the floor G. At this time, the floor G
By moving the transfer plate 8 in contact with the pipe 17 upward, the transfer plate 8 is rotated more than a predetermined angle α °, thereby positioning the transfer plate 8 at the flip-up position.

Next, the operation and effects of the work table of the unmanned vehicle configured as described above will be described. As shown in FIGS. 1 and 5, the entrance 1a of the production line 1 along the guide line L
The unmanned vehicle 2 that has entered the vehicle is traveling at a low speed while maintaining a predetermined distance from the unmanned vehicle 2 that travels back and forth. At this time, the passing plate 8 of the unmanned vehicle 2 behind the lowering device 12 is positioned at the flip-up position. Then, the unmanned vehicle 2 travels forward, the passing plate 8 comes into contact with the pipe 14 of the descending device 12, and the passing plate 8 is caused to travel forward while contacting the pipe 14 with the passing plate 8. 8 is set to a certain angle α ° or less. Then, the passing plate 8 is connected to the spring 10
Is pivoted downward by the urging force of. At this time, the transfer plate 8 is placed on the storage recess 11 formed in the sideboard 5b of the unmanned vehicle 2 behind.

In this state, the worker performs work of assembling a work such as a vehicle mounted on the unmanned vehicle 2 on the work table 5.
Then, the work on the production line 1 is completed and the unmanned vehicles 2
Reaches the exit 1b , the unmanned vehicle 2 moves to the next production line at a normal traveling speed.

As shown in FIGS. 1 and 6, when the unmanned vehicle 2 travels at a normal traveling speed, the transfer plate 8 placed on the storage recess 11 of the sideboard 5b of the rear unmanned vehicle 2 receives It is disengaged from the recess 11 and pivots so that its rear end 8a contacts the floor surface G.

The time when the unmanned vehicle 2 is located at the position where the passing plate 8 is raised is detected by a photoelectric tube (not shown), and based on this detection signal, the pipe 17 of the lifting device 15 is detected.
Moves upward to push the transfer plate 8 up to a certain angle α °. At this time, the transfer plate 8 which has been pushed up to the certain angle α ° is rotated to the jumping position by the urging force of the spring 10.

As described in detail above, according to the present embodiment, the connecting plate 8 is connected to the side board 5b of the work table 5,
By closing the gap formed between the work platforms 5 of the unmanned vehicle 2, the worker can connect the unmanned vehicles 2 horizontally and substantially flush. At this time, the unmanned vehicle 2 where the worker is working
From the work table 5 of the unmanned vehicle 2 traveling back and forth,
It can be easily moved without worrying about the gap. For this reason, work efficiency can be improved.

Further, since the transfer plate 8 is connected to the sideboard 5b, even if the gap is enlarged, the transfer plate 8 does not come off from the work table 5 and the work can be performed safely.

Further, by forming the storage recess 11 in the front part of the sideboard 5b, it is possible to easily mount the handover plate 8 of the unmanned vehicle 2 traveling forward. And, since the handover plate 8 is rotatably provided, when the handover plate 8 is not placed in the storage recess 11 traveling backward,
When the rear end portion 8a of the handover plate 8 is set in the floor G
It can be prevented from being worn due to contact with. Furthermore, when the unmanned vehicle 2 turns, the turning plate 8 is turned upward, so that the turning radius can be made smaller than when the unmanned vehicle 2 is in contact with the floor surface G.

In addition, by turning the transfer plate 8 upward beyond the predetermined angle α °, the transfer plate 8 can be automatically turned to the jumping position by the urging force of the spring 10. Similarly, by turning the passing plate 8 downward from the fixed angle α °, the passing plate 8 can be placed on the storage recess 11 of the unmanned vehicle 2 traveling rearward by the biasing force of the spring 10. .

Further, in the traveling unmanned vehicle 2, the passing plate 8 positioned at the jumping position is caused to travel while being in contact with the pipe 14 of the descending device 12, so that the passing plate 8 can be easily reduced to a certain angle α ° or less. Can be rotated.

Further, the connecting plate 8 is attached to the floor G at the rear end 8.
In the state where a is in contact, the transfer plate 8 can be easily rotated by the pipe 17 of the flip-up device 15 to a certain angle α ° or more.

Even when the unmanned vehicle 2 is running while turning, the transfer plate 8 is connected to the sideboard 5b, so that the transfer plate 8 can be transferred from the slanted gap between the work tables 5 of the unmanned vehicle 2. The plate 8 can be prevented from falling.

The present invention is not limited to the above-described embodiment, but may be implemented as follows, with a part of the configuration being appropriately changed without departing from the spirit of the invention. (1) In the above embodiment, the transfer plate 8 is rotated by using the spring 10, but may be rotated by using various actuators. At this time, the actuator is rotated based on a command signal from the guide line L so that the transfer plate 8 is moved up and is placed on the storage recess 11 formed on the work table 5 of the unmanned vehicle 2 behind. You.

(2) In the above embodiment, the transfer plate 8 is rotated. However, the transfer plate 8 is slid horizontally with respect to the sideboard 5b, so that the work table 5 of the rear unmanned vehicle 2 is moved.
The transfer plate 8 may be configured to be placed on the storage recess 11 formed in the above.

(3) In the above embodiment, the work table 5 is attached to the front and one side of the unmanned vehicle 2, but the work table 5 may be attached to the front and both sides of the unmanned vehicle 2. At this time, the transfer boards may be connected to sideboards attached to both sides, respectively. Further, storage recesses 11 may be formed on the front portion of the sideboard in correspondence with these transfer plates.

(4) In the above embodiment, the sideboard 5b
Although the transfer plate 8 is formed at the rear part, the transfer plate 8 may be formed at the front part of the sideboard 5b. At this time, the transfer board 8 is placed on the work table 5 of the unmanned vehicle 2 running ahead as an adjacent unmanned vehicle.

Further, a cross plate 8 may be formed on the side of the side board 5b. At this time, the transfer board 8 is placed on the work table 5 of the unmanned vehicle 2 running sideways as an adjacent unmanned vehicle.

(5) In the above embodiment, the sideboard 5b may be provided rotatably with respect to the unmanned vehicle 2.

[0040]

As described above in detail, according to the present invention, an excellent movement that a worker can easily move from a working table of an unmanned vehicle in which the worker is working to a working table of an unmanned vehicle running adjacent thereto. effective.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an unmanned vehicle provided with a work table running at predetermined intervals in one embodiment of the present invention.

FIG. 2 is a rear view showing a state in which the casters are attached to the work table in one embodiment.

FIG. 3 is a perspective view showing an unmanned vehicle provided with a work table in one embodiment.

FIG. 4 is an explanatory diagram showing a portion A in FIG. 3;

FIG. 5 is a front view showing a lowering device in one embodiment.

FIG. 6 is a front view showing a flip-up device in one embodiment.

[Explanation of symbols]

2 ... unmanned vehicle, 5 ... work table, 8 ... handover plate, 10 ... spring as holding means, 12 ... lowering device, 15 ... springing device, L ... guide wire.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Minamihachi Hayashi 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (56) References JP-A-4-352009 (JP, A) JP-A-4-35 352010 (JP, A) JP-A-6-298020 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G05D 1/02 B62D 65/00 B65G 47/52 101

Claims (5)

(57) [Claims] 1. An unmanned vehicle that travels on a guide line continuously with another unmanned vehicle and has a work table provided in a horizontal direction. Unmanned vehicle work table with a passing board that overlaps with 2. A worktable for an unmanned vehicle according to claim 1, wherein said handover plate includes holding means for holding said handover plate at a raised position and a lowered position. 3. The work table of an unmanned vehicle according to claim 1, wherein the work table of an adjacent unmanned vehicle has a storage recess at a position corresponding to the handover plate. 4. The handover plate is provided at its upright position so as to be able to engage with a descending device provided at a predetermined position on the traveling path of the unmanned vehicle, and is disposed at the descending position by engaging with the descending device. A workbench for an unmanned vehicle according to claim 1. 5. The handover plate is provided so as to be engageable with a flip-up device provided at a predetermined position on a traveling route of the unmanned vehicle,
The work table of an unmanned vehicle according to claim 1, wherein the work table is arranged at a raised position by engagement with the lifting device at the lowered position.