JPH042125Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a transport facility using a self-propelled vehicle, which is employed to support and transport vehicle bodies, for example, in an automobile assembly plant.

BACKGROUND TECHNOLOGY Conventionally, when conveying objects through a load support device such as a hanger device, a trolley device that is guided by a rail and can move freely on a fixed path is used, as seen in Utility Model Publication No. 58-44044, for example. A load support device is installed on the
There has also been proposed a system in which the moving force of a separately disposed drive chain is applied to the trolley device. According to this conventional method, the moving speed of the drive chain must be kept low so as not to interfere with the work of the work process section installed at the appropriate location on a fixed path.
The conveyance speed by the trolley device is also low in the constant path section except for the work process section. As a result, the overall transport efficiency is reduced, and since a large number of trolley devices must be positioned along almost the entire length of a fixed route and moved simultaneously, problems arise in terms of equipment costs and drive capacity. So recently,
A system has been considered in which a self-propelled vehicle equipped with a load support device is allowed to travel along a fixed route, and is driven at a low speed in a work process section and at a high speed in other regions.

Problems that the invention aims to solve However, according to the new proposals mentioned above,
When self-propelled vehicles are running at low speeds in the work process department, it is difficult to control the travel to maintain a constant distance between the front and rear self-propelled cars, which causes problems in various tasks in the work process department. It turns out. The impact on work is particularly large when the distance between self-propelled vehicles in a work process section is small.

The purpose of this invention is to use a self-propelled vehicle that can be transported at high speed outside the work process section, while in the work process area it can be easily controlled and accurately delivered at predetermined intervals with low equipment costs. The purpose of the present invention is to provide transportation equipment using self-propelled vehicles that can run at low speeds.

Means for Solving the Problems In order to solve the above-mentioned problems, the conveyance equipment using a self-propelled vehicle according to the present invention is capable of traveling freely on a fixed path by a drive means mounted on it and transmits power to a self-propelled vehicle having a load supporting section. A part is provided, and a floating body is disposed along the certain route at a suitable position on the certain path, and the floating body is capable of being freely engaged with and detached from the transmission part, and the floating body is configured to drive the self-propelled vehicle. Passive parts propelled by force are installed at predetermined intervals.

Effects According to the configuration of the present invention, a self-propelled vehicle that has been traveling at high speed (high-speed conveyance) by its own drive means,
By decelerating before reaching a suitable location such as a work process section, and by engaging the transmission part with the passive part,
The subsequent low-speed running of the self-propelled vehicle can be performed with the floating bodies integrally interlocked. Since the following self-propelled vehicle also engages with the next driven part, the interval between the self-propelled vehicles can always be constant and equal to the interval between the driven parts. Furthermore, the self-propelled vehicle that has reached the end of the proper position can again travel at high speed by disengaging and disengaging.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. 1 is the main rail, ceiling side frame 2
is supported via support 3. Reference numeral 4 denotes a self-propelled vehicle, which includes a frame-shaped body 5, a pair of front and rear wheels 6, 7 attached to the upper part of the frame-shaped body 5, and a speed changeable wheel attached to the frame-shaped body 5 to be linked to the front wheels 6. a traveling drive device 8, a control panel 9 attached to the frame-shaped main body 5,
By placing both wheels 6 and 7 on the main rail 1 from above, it is possible to freely run on a fixed route 11 in a monorail manner. The self-propelled vehicle 4 integrally has a hanger-type load support section 12 at the bottom, and this load support section 12 has the following features:
A pair of left and right frames 13 that are C-shaped in side view;
It consists of a plurality of load receiving devices 14 attached to these frames 13, and the load receiving devices 14 support a vehicle body 15, which is an example of an object to be transported. Guide rollers 16 are attached to both upper sides of the frame 13.
Also, on one side of the front part of the frame-like main body 5, a square bar-shaped transmission part 1 is provided.
7 is provided. A movable body 19 is disposed in the working process section 18 which is a suitable position on the fixed path 11. This floating body 19 consists of an endless chain, and wheels 21 of trolleys 20 attached at appropriate intervals are supported and guided by auxiliary rails 22. The floating body 19 is
One straight section is disposed above the transmission section 17 along the constant path 11 in an endless manner in plan view and via a plurality of idler wheels 23 . Passive parts 46 that can be freely engaged with and disengaged from the transmission part 17 are attached to the floating body 19 at predetermined intervals P.
That is, the lower end of the trolley 20 has a mounting member 2.
4 are attached, and these attachment members 24 are attached to the passive body 19 side at predetermined intervals P. A left-right pin 25 is attached to the lower front surface of the attachment member 24 via a bracket 26, and a rearwardly extending front engagement body 27 is attached to this pin 25 so as to be vertically swingable. An upwardly stopped portion 28 is integrally formed at the front end of the front engaging body 27, and a front stopper 29 that receives this stopped portion 28 and restricts the lowest movement position of the front engaging body 27 is configured as described above. It is provided on the bracket 26. A vertical rearward engaging surface 30 is formed at the rear end of the front engaging body 27, and a mounting piece 31 is provided rearwardly protruding from the upper part of the rear end. Furthermore, the lower surface of the front engaging body 27 is formed into a cam surface 32 that is lower toward the rear. A left-right pin 33 is attached to the rear lower surface of the attachment member 24 via a bracket 34, and a rear engagement body 35 extending downward is attached to this pin 33 so as to be swingable back and forth. An upwardly stopped portion 36 is integrally formed at the upper end of the rear engaging body 35, and a rear stopper 37 is provided on the bracket 34 for receiving the stopped portion 36 and regulating the backward swinging of the rear engaging body 35. It will be done. The front end of the rear engagement body 35 is formed into a vertical forward engagement surface 38, and a receiving piece 39 for receiving the mounting piece 31 from below projects forward from the upper part of the front end. Therefore, when both the engaging bodies 27, 35 are in the rocking restriction position, an engaging space 45 in which the passive portion 17 can freely engage is formed between the opposing engaging surfaces 30, 38. The floating body 19
As shown in FIG. 3, the auxiliary rail 22 supporting the main rail 1 is located at a higher position on the outside than on the inside approaching the main rail 1, and on the inside, the level is gradually increased from near the end of the work process section 18 to a higher position. (The reason will be explained later.) In the work process section 18,
A guide rail 40 with which the guide roller 16 abuts from below is provided, and this guide rail 40 is attached to the ceiling frame 2 via a support frame 41. The front pin 25 protrudes outward to become a detected part 42, and a first detection device 43 for detecting this detected part 42 is disposed in the upper part of the work process section 18, and a second detection device 44 is arranged in the lower part. It is located in

Next, the operation of the above embodiment will be explained. Self-propelled vehicle 4 on fixed route 11 excluding work process section 18 etc.
is driven at high speed by the traveling drive device 8 to perform high-speed conveyance. When the detected part 42 reaches near the entrance of the work process section 18, the first detection device 43 detects the detected part 42, and upon this detection, a stop signal is given to the travel drive device 8 to decelerate the self-propelled vehicle 4. . The self-propelled vehicle 4 enters the work process section 18 while being gradually decelerated, and the transmission section 17 approaches the rear engagement body 35 as shown by the phantom line A in FIG. When the transmission part 17 comes into contact with the rear engaging body 35, the rear engaging body 35 swings forward and upward as shown by the phantom line B, and the front engaging body 35 swings forward and upward through the receiving piece 39 and the mounting piece 31. 27 also swings upward, and the transmission part 17 passes below both the engaging bodies 35 and 27 and moves to the imaginary line C. Normally, this passage is performed for a pair of engaging bodies 35, 27, but when no work is being performed in the work process section 18, it is also possible to pass through this at high speed. As mentioned above, the passive part 17 is a set of engaging bodies 3
5, 27, these engaging bodies 3
5 and 27 will automatically swing back to their original state due to their own weight. Furthermore, the transmission part 17 that has passed through becomes even slower than the idler body 19 that moves at a low speed (described later), so that both engaging bodies 2
7.35 will be approaching. Then, first, since the cam surface 32 acts on the transmission part 17, only the front engagement body 27 swings upward, and as a result, the transmission part 1
7 abuts against the forward engagement surface 38 of the rear engagement body 35. At this time, the rear engaging body 35 is moved to the rear stopper 37.
The backward swing is regulated. After such engagement is detected by a detection device (not shown), an optimum speed signal is given to the traveling drive device 8 for the work process section 18, thereby causing the self-propelled vehicle 4 to travel at a low speed.
At that time, the transmission part 17 engages with the engagement surface 30, and therefore the floating body 19 is transferred to the mobile vehicle 4 via the passive part 46.
The self-propelled vehicle 4 receives the traveling force of the self-propelled vehicle 4, and moves at low speed together with the self-propelled vehicle 4. Then, the next self-propelled vehicle 4 performs the same engagement operation, and since the passive parts 46 are placed at predetermined intervals P at that time, the plurality of self-propelled vehicles 4 entering the work process section 18 are always at the predetermined interval. At intervals of P,
or an integer multiple thereof. When the self-propelled vehicle 4 reaches near the end of the work process section 18, since the auxiliary rail 22 has been leveled up as described above, both the engaging bodies 27 and 35 move upward, and are in the disengaged state. In other words, it becomes free. At this time, the second detection device 44 detects the detected portion 42, and upon this detection, a high speed switching signal is given to the travel drive device 8 to cause the self-propelled vehicle 4 to travel at high speed again.

While the self-propelled vehicle 4 is traveling at low speed in the work process section 18, various works are performed on the vehicle body 15.

FIG. 7 shows another embodiment. That is, as shown by the solid line, it may be mechanically synchronously interlocked with a floating body 51 of another work process section 50 via an interlocking device 52 such as an interlocking shaft or an endless interlocking body. Furthermore, as shown by the imaginary line, it may be synchronously interlocked with a conveyor 53 for transporting articles disposed below the work process section 18 via an interlocking device 54. Note that synchronization may be performed electrically.

The transmission portion 17 and the passive portion 46 may have various combinations of shapes, such as having the transmission portion 17 side engaged and disengaged, for example.

Effects of the invention According to the conveyance equipment using a self-propelled vehicle according to the present invention having the above configuration, a self-propelled vehicle traveling at high speed (high-speed conveyance) is decelerated before reaching a suitable location such as a work process section, and the transmission part is passively activated. By engaging with the part, the self-propelled vehicle can subsequently travel at low speed while moving the floating body in an integrated manner. Since the following self-propelled vehicle also engages with the next passive part, the interval between the self-propelled vehicles can always be a constant equal to the predetermined interval between the passive parts, or it can be an integral multiple of the predetermined interval. , self-propelled vehicles can be prevented from approaching within a predetermined distance. Therefore, low-speed travel in the work process section can be carried out without interfering with various operations, and since the distance is always at a predetermined interval, it is possible to approach the high-speed side within the low-speed range. Moreover, although the system uses self-propelled vehicles capable of high-speed transportation in areas other than the appropriate route such as the work process section, simple control by simply adjusting the speed of the self-propelled vehicle can be carried out on the appropriate route such as the work process section. In addition, this self-propelled vehicle can always be kept at a predetermined position using the running force of the self-propelled vehicle, even with a simple structure that has both engaging bodies and a low equipment cost that requires only a floating body that does not require a driving means. It can run at low speeds at intervals. In addition, even if an abnormality occurs in one self-propelled vehicle due to driving by its own driving means, the remaining self-propelled vehicle can be removed by removing the self-propelled vehicle in which the abnormality has occurred from the fixed route. The transportation work can be continued by the self-propelled vehicle, which has the effect of improving work efficiency.

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of the present invention, in which Figure 1 is a schematic plan view showing the route, Figure 2 is a side view of the main parts, Figure 3 is a front view of the same, and Figure 4 is a schematic plan view showing the route. The same plan view, FIG. 5 is a side view of the transmission part, FIG. 6 is the same front view, and FIG.
The figure is a schematic side view showing another embodiment. 1... Main rail, 4... Self-propelled vehicle, 6, 7... Wheels, 8... Travel drive device, 11... Fixed route, 1
2... Load support part, 14... Load receiving tool, 15... Vehicle body (transported object), 17... Transmission part, 18... Work process part (appropriate position), 19... Idling body, 24... Mounting member , 27... Front engaging body, 28... Stopped portion, 29... Front stopper, 30... Rearward engaging surface, 31... Mounting piece, 32... Cam surface, 35...
...Rear engaging body, 36... Stopped part, 37...
Rear stopper, 38...Front-facing engagement surface, 39...
Receiving piece, 42...Detected part, 43...First detection device, 44...Second detection device, 45...Engagement space,
46...Passive part.

Claims (1)

[Scope of utility model registration request] A self-propelled vehicle that can travel freely on a fixed path by means of a drive means and has a load support part is provided with a transmission part,
A floating body is disposed along the certain route at a suitable location on the certain path, and the floating body is detachably engaged with the transmission part, and the floating body is propelled by the driving force of the self-propelled vehicle. A transport facility using a self-propelled vehicle, characterized in that passive parts are installed at predetermined intervals.