JPH045581B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a suspension conveyance device employed for supporting and conveying an automobile body in an automobile manufacturing line.

Conventional technology Conventionally, this type of suspension conveyance device for tilting an automobile body, etc.
The structure found in Publication No. 57-155120 is provided. This conventional type has a transporting body that can freely run on a fixed path guided by a trolley guide rail, and a hanger is attached to this transporting mobile body via two hanging rope-type lifting devices at the front and the rear, and can be lifted and lowered. It is suspended so that it can be tilted forward and backward. Further, when the hanger is lifted up to its upper limit, a swing prevention means is provided to prevent the hanger from swinging back and forth and from side to side with respect to the conveyance moving body.

Also, as a device that changes the direction of the body etc.
For example, the structure shown in Japanese Utility Model Publication No. 57-11935 is provided. This conventional type has a lever pivotally attached to a pair of front and rear carriers, and
The free ends of these levers are pivotally connected to each other at pivot points. An object suspension device, a cam plate, a folding arm, and a return arm are fixed to the front lever, and a locking rod that engages and disengages from the cam surface of the recessed portion of the cam plate is pivotally attached to the front carrier. According to this conventional type, the direction of the conveyed object can be changed by rotating the cam plate, and the changed position can be locked by a locking lever.

Problems to be Solved by the Invention Among the above-mentioned conventional types, in the latter type that changes direction, the locking rod acts on the cam plate from the side, and the cam shape of the cam plate is changed. Therefore, the conveyed object can only be rotated in the forward and reverse directions within a 90 degree range; therefore, for example, the forward-facing body can be turned in any arbitrary horizontal direction to the left or right, or to the rear. Therefore, the optimum orientation could not be achieved depending on the type of work process. Also, in the former case of tilting,
Since its tilting posture is maintained by the front and rear suspension ropes, it tends to sway in all directions during work, making it impossible to perform the intended work smoothly and accurately.

The object of the present invention is to be able to arbitrarily change the direction of the automobile body in all directions, to be able to firmly lock the changed posture, to be able to tilt stably without shaking, and to be able to change the direction and tilt the vehicle body. An object of the present invention is to provide a suspension conveyance device for an automobile body that can simultaneously perform the following operations.

Means for Solving the Problems In order to solve the above-mentioned problems, the suspension conveyance device for an automobile body according to the first aspect of the present invention provides support for an automobile body at the bottom of a movable body that is guided by rails and can travel on a fixed path. A device is provided, and this support device is provided with a frame body supported on the movable body side, a hanger rotatably attached to the frame body around the vertical axis, and a hanger disposed on the frame body and vertically attached to the hanger side. It consists of a locking device that can be engaged and detached from any direction, and a locked part for unlocking is formed at the upper end of this locking device.

Further, in the suspension conveyance device for an automobile body according to the second aspect of the present invention, a supporting device for an automobile body is provided at a lower part of a movable body that is guided by rails and can travel on a fixed path, and this supporting device is supported on the side of the movable body. a frame body, a hanger attached to the frame body so as to be rotatable around the vertical axis, and a locking device disposed on the frame body and detachable from the vertical direction on the hanger side, A locked part for unlocking is formed at the upper end of this locking device, and a pair of vertical guide grooves is formed on one of the movable body side and the frame side, and on the other side, these guide grooves are formed. A pair of horizontal pins to be inserted are provided in the front and rear, guide rollers are attached to the front and rear of the frame, and at least one of the guide grooves is formed wide in the front and back direction.

Effects According to the configuration of the first invention, the movable body is stopped at a predetermined position on a fixed route, and the locking device is activated.
After releasing the lock by moving it upward through the locked part, by applying a rotational force to the hanger, the hanger can be rotated in the forward and reverse directions around the vertical axis relative to the frame. The orientation of the automobile body supported by the can be changed to the left or right in any direction and at any angle. Thereafter, by lowering the locking device and making a new locking movement, the intended suspended conveyance can be carried out with the orientation of the automobile body changed.

Furthermore, according to the configuration of the second invention, by causing one of the front and rear guide rollers to act on the guide rail, one side of the frame can be raised relative to the moving body,
This allows the vehicle body to be tilted via the frame. At that time, the tilting of the frame can be absorbed by the clearance created between the wide guide groove and the horizontal pin, but due to the engagement structure between both guide grooves and the horizontal pin, the tilting can cause the frame to shake unexpectedly. It can be done without any trouble. Furthermore, by performing both the direction change and the tilting, the automobile body whose direction has been changed can be tilted.

Embodiment An embodiment of the present invention will be described below based on the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a hanging conveyance device, which includes a trolley guide rail 2, a trolley drive device rail 3 installed above the trolley guide rail 2, and a fixed path 27 guided by the trolley guide rail 2. A trolley device (an example of a moving body) 4 that can freely travel on the trolley device 4, a support device 5 attached to the trolley device 4, and a trolley drive device (such as a chain conveyor) 6 guided by the trolley drive device rail 3. configured.
The trolley device 4 includes a front trolley 7, a free trolley 8, a rear trolley 9, and a connecting rod 10 that connects the front trolley 7 and the free trolley 8.
, a connection frame 13 that connects the trunnion pins 11 and 12 connected from the free trolley 8 and the rear trolley 9, and the trolley guide rail 2.
It consists of guide wheels 14, 15, 16 attached to each trolley 7, 8, 9 and wheels 17, 18, 19 for preventing lateral vibration, which are attached to each trolley 7, 8, 9 so as to be supported and guided. The front trolley 7 has a passive dog 21 that can be engaged with and detached from the transmission protrusion 20 from the trolley drive device 6, and is movable up and down.
In the middle thereof, an operating lever 23, which is attached to be vertically swingable via a horizontal shaft 22, extends forward.
The rear end of the operating lever 23 and the lower end of the passive dog 21 are connected via a pin. Therefore, the operating lever 23 and the passive dog 21 are interlocked so that when the operating lever 23 moves upward, the passive dog 21 descends. Normally passive dog 2
1 is raised by the biasing weight on the tip end side of the operating lever 23. The front trolley 7 is
A contact member 2 located below the operating lever 23
4, and at the rear of the upper end is the passive dog 2.
It has a hold dog 25 located at the rear of 1. This hold dog 25 is configured to be able to swing back and forth, and normally its upper end is weight-biased so as to enter the moving path of the transmission protrusion 20. In this state, the lower end of the hold dog 25 It is maintained by contacting the side. The other rear trolley 9 has a cam tail 26 extending rearward for moving the operating lever 23 upward. The support device 5 supports the trolley device 4.
A frame body 28 that is supported so as to be able to move up and down relatively to the sides and tilt freely; a hanger 30 that is attached to this frame body 28 so as to be rotatable around a vertical axis 29; It is comprised of a locking device 31 on the hanger 30 side that can be freely engaged and detached from above and below. That is, hanging frames 32A, 32B are vertically provided from the front and rear ends of the connecting frame 13, respectively, and guide grooves 33A, 33B having a predetermined length are formed in the vertical direction in these hanging frames 32A, 32B. Then, a pair of front and rear brackets 34A, 3 are inserted from the upper surface of the frame body 28.
4B, and these brackets 34A, 34B.
Horizontal pins 35A, 35B attached to the upper ends of the guide grooves 33A, 33B are inserted through the guide grooves 33A, 33B. As a result, the frame body 28 can freely move toward and away from the trolley device 4 within a predetermined range (elevating and lowering). Furthermore, one of the guide grooves 33A and 33B, 33B, is formed wide in the front-rear direction and engages the horizontal pin 35B with a margin, so that the above-mentioned approach and separation can be performed by tilting one side. It is configured. At the front and rear ends of the frame body 28, support rods 36A and 36B are arranged in a row upwardly, distributed to the left and right, respectively, and guide rollers 37A and 37B are attached to the upper ends of these support rods 36A and 36B, respectively. At the center of the lower surface of the frame 28, a rotary connector 38 made of a combination of a shaft and a bearing, for example, is attached, and the hanger 30 is attached to the rotary connector 38, so that the hanger 30 is attached to the frame 28. On the other hand, it is freely rotatable in forward and reverse directions around the vertical axis 29. The hanger 30 includes a top frame 39 attached to the rotary connector 38, a pair of vertical bars 40 connected from one end of the top frame 39, and a horizontal rod connected in the same direction from the lower ends of the vertical bars 40. 41, and a plurality of upwardly facing receivers 42 attached to each of these horizontal bars 41. In order to stabilize the rotation, a disk 43 is attached to the lower surface of the frame 28, and a plurality of rotating bodies 44 that come into contact with the lower surface of the disk 43 are attached to the ceiling frame 39. The locking device 31
It consists of a lock pin 45 inserted into the frame 28 so as to be able to rise and fall freely, a spring 46 that biases the lock pin 45 downward, and a locked portion 47 for unlocking formed at the upper end of the lock pin 45. The top frame 39 has a lock hole 4 into which a lock pin 45 can be freely engaged and detached.
8 are formed around the vertical axis 29. A release device 50 for the locking device 31 is provided at a suitable location on the fixed path 27. That is, the release device 50 consists of a cylinder device 51 and a locking portion 52 attached to the lower end of the downward piston rod.
can be freely engaged and disengaged in the transport direction. A guide rail 53 into which the guide rollers 37A and 37B can be fitted is provided, and a bracket 5 is attached to this guide rail 53.
The cylinder device 51 is attached via 4. 55 is an automobile body.

The operation of the above embodiment will be explained below.

Normally, the trolley device 4 travels when the transmission protrusion 20 engages with the passive dog 21.
At this time, the front end of the operating lever 23 is moving downward. When the trolley device 4 tries to run out of control during such movement, the hold dog 25 comes into contact with the transmission protrusion 20, so that runaway is prevented. When the fixed path 27 is an upward path or a downward path, the trolley device 4 also tilts along the slope. When the path is upward, the guide roller 37B at the rear end acts on the guide rail disposed along the path, and the horizontal pin 35B is moved upward within the guide groove 33B, thereby lifting the frame 28. The rear end can be raised and the hanger 30 side can be kept horizontal. In addition, during the downward path, the guide roller 37A at the front end may act on the guide rail.
This also allows the side of the hanger 30 to be positively tilted in the horizontal path section, thereby making it possible to tilt the vehicle body 55 conveniently for various operations. At that time, the tilting (rising) of the frame 28 with respect to the connecting frame 13 is caused by the wide guide groove 33B and the horizontal pin 35.
B, and the guide grooves 33A, 33B and the horizontal pins 35A, 3.
Due to the engagement structure with 5B, tilting can be performed without the frame body 28 side shaking unexpectedly.

Next, as shown in the solid lines in FIGS. 1 and 2, and in FIG.
We will explain the effect of turning the object sideways at the appropriate location. When stopping the trolley device 4 at a proper position (predetermined position), a stopper plate is inserted above the trolley guide rail 2. As a result, the passive dog 21 descends and enters under the stopper plate, disengaging from the transmission protrusion 20 and putting the trolley device 4 in a non-driving state.The hold dog 25 also comes into contact with the stopper plate, and the subsequent operation Movement is stopped. After this stop, the locked portion 47 is automatically engaged with the locking portion 52 as shown in FIG.
Therefore, by retracting the cylinder device 50, the locking pin 45 can be raised against the spring 46 and removed from the locking hole 48, thereby unlocking the locking device 31. After the lock is released, the hanger 30 can be moved up and down by activating a mechanical rotary drive device (not shown) installed at an appropriate location, or by manually applying rotational force to the hanger 30. Rotate around the axis 29 in forward and reverse directions. This allows the vehicle body 55 to be turned laterally with respect to the constant path 27, as shown in FIGS. 1, 2, and 4B. Thereafter, the lock pin 45 is lowered by the reverse action of the release device 50 and engaged with the lock hole 48.
By locking the locking device 31, the desired conveyance can be carried out. As a result, the pitch P ₂ during the horizontal feed shown in FIG. 4B can be made shorter than the pitch P ₁ during the vertical feed shown in FIG. 4A.

By engaging the guide rollers 37A, 37B with the guide rail 53 during the direction change, the frame 2
8 side runout can be prevented. This guide rail 53
may be arranged along substantially the entire length of the fixed path 27 to guide movement.

As shown in FIG. 3, in the sideways conveyance state, for example, by supporting and guiding the rear guide roller 37B by the upper guide rail 56, the front horizontal pin 35A is at the lower end of the guide groove 33A, but the rear The horizontal pin 35B is in the guide groove 35B.
It can be located above the support device 5, thereby making it possible to tilt the transverse motor vehicle body 55 with respect to the transport direction. Therefore, conveyor 5
This allows the operator above 7 to perform tilting work.

The above-mentioned orientation change operation can also make it possible to change from landscape to portrait, and from portrait to landscape it can be done in either the left or right direction, and by rotating 180 degrees, it is also possible to change between forward and rearward orientation. obtain. Further, the lock device 31 may be manually released without using the release device 50.

Effects of the Invention According to the first aspect of the present invention having the above-mentioned configuration, the moving object is stopped at a proper place on a fixed path, and the locking device is moved upward through its locked portion to release the lock, and then a rotational force is applied to the hanger. By providing this, the hanger can be rotated in the forward and reverse directions around the vertical axis relative to the frame, and thereby the automobile body supported by the hanger can be rotated in any direction to the left or right. Moreover, it can be changed at any angle. Thereafter, by lowering the locking device and making a new locking movement, the intended suspended conveyance can be carried out with the orientation of the automobile body changed. This allows the car body to be suspended and transported with its length aligned with a certain path direction, facing forward or backward, or sideways to the left or right, making it possible to carry out various tasks in a suitable orientation. It can be carried out.

Furthermore, according to the second invention, by causing one of the front and rear guide rollers to act on the guide rail, one side of the frame can be raised relative to the moving body, and thereby the automobile body can be moved through the frame. It can be tilted. At that time, the tilting of the frame can be absorbed by the clearance created between the wide guide groove and the horizontal pin, and due to the engagement structure between both guide grooves and the horizontal pin, the tilting can be absorbed by the frame unexpectedly. can be done without shaking. Furthermore, by performing both the direction change and the tilting, the vertically or horizontally oriented automobile body can be tilted with respect to the transport direction, thereby making it possible to perform a tilting operation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a side view showing an example of traversing work, and FIGS. 4A and 4B are action explanatory views. be. DESCRIPTION OF SYMBOLS 1... Hanging conveyance device, 2... Trolley guide rail, 4... Trolley device (moving body), 5... Transported object support device, 6... Trolley drive device, 20...
Transmission protrusion, 21...Passive dog, 27...Constant path, 28...Frame body, 29...Vertical axis, 30...
Hanger, 31... Lock device, 32A, 32B...
... Hanging frame, 33A, 33B... Guide groove, 35A,
35B...Horizontal pin, 37A, 37B...Guide roller, 38...Rotating connector, 41...Horizontal rod, 42
... Receptacle, 45 ... Lock pin, 47 ... Locked part, 48 ... Lock hole, 50 ... Release device, 5
1... Cylinder device, 53... Guide rail, 5
5...Automobile body.

Claims (1)

[Scope of Claims] 1. An automobile body support device is provided at the lower part of a moving body that is guided by rails and can freely travel on a fixed route,
This support device includes a frame body supported on the movable body side, a hanger rotatably attached around the vertical axis of the frame body, and a hanger that is disposed on the frame body and can be engaged with and detached from the hanger side from the vertical direction. What is claimed is: 1. A suspending and conveying device for an automobile body, comprising a locking device which can be freely moved, and a locked portion for releasing the lock is formed at the upper end of the locking device. 2. An automobile body support device is provided at the bottom of a moving object that can freely travel on a fixed route guided by rails,
This support device includes a frame body supported on the movable body side, a hanger rotatably attached to the frame body around the vertical axis, and a hanger disposed on the frame body and detachable from the vertical direction on the hanger side. A locking device is constructed of a flexible locking device, and a locked portion for unlocking is formed at the upper end of the locking device, and a pair of vertical guide grooves is formed in one of the movable body side and the frame side in the front and back. Also, on the other side, a pair of front and rear horizontal pins are provided to be inserted into these guide grooves, guide rollers are attached to the front and rear of the frame body, and at least one of the guide grooves is formed to be wide in the front and rear direction. Suspension transportation device for automobile bodies.