JPH09118276A - Method of carrying vehicle and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and precisely carry a vehicle having wheels laid in free rotating state. SOLUTION: A carrying truck 3 guided by traveling rails 2R, 2L arranged between front wheels FW along a carrying route L has a vibration preventing device 5 for pressing vibration preventing rollers 4R, 4L onto the lower inside surfaces of the front wheels FW to regulate the advancing direction, and a propulsion unit 8 having front hold rollers 6R, 6L for regulating the forward rolling of the front wheels FW. Thus, the carrying can be easily and precisely performed with a small driving force by utilizing the rolling of the front wheels laid in free rotating state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transporting a vehicle for delivering or delivering a vehicle between lines or between devices in a completed part of a production line such as a production factory, an inspection line, a storage line, and the like. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, as a device for moving a vehicle body having wheels between a conveyor device and a conveyor device, or between a conveyor device and a lifting lifter, for example, on a completed car transport line, an operator is aboard. Let it run,
Place the wheels or vehicle body on the transport member and lift the vehicle body,
The transport member is moved to transport the vehicle (for example, Japanese Utility Model Laid-Open No. 55-167921, Microfilm and Japanese Patent Laid-Open No. 60-
For example, a method in which a transport member is locked to a vehicle body and the transport member is moved to move and transport the vehicle body through wheels in an idle state is used.

[0003]

However, in the above case, the worker must be stationed at the transfer site without fail.
Expensive. In the case of (1), since the vehicle is lifted directly through the wheels or the vehicle body, a large amount of power is required and the device becomes large. Further, since the positions of the wheels and the lifted positions of the vehicle body are different depending on the vehicle type, the position of the conveying member has to be changed, which requires complicated operation and complicates the whole.
In this case, since the locking position of the transport member changes depending on the vehicle type, it becomes complicated, and the transport direction is often deviated due to the turning angle of the wheels, which makes it difficult to accurately move along the transport line. There was a problem.

The invention according to claim 1 of the present invention solves the above problems and provides a vehicle transporting method and apparatus capable of accurately transporting a vehicle body without the need for resident workers and large power. With the goal.

[0005]

In order to achieve the above object, a method of transporting a vehicle according to the present invention conveys a vehicle having left and right front wheels in an idle state and left and right rear wheels in an idle state. When transporting forward along the direction, the anti-sway members are pressed against the inner and outer surfaces of the left and right front wheels to direct the front wheels in the traveling direction, and the front parts of the left and right front wheels are attached to the front parts. A hold member is arranged to restrict the forward movement of the front wheels, and the rear hold member arranged at the rear of the left and right front wheels, the front hold member, and the shake preventing member are synchronously moved forward, respectively. By pushing the front wheels forward by the rear hold member, the front wheels are rotated and the vehicle is moved forward.

Further, the vehicle transporting apparatus of the present invention is a vehicle transporting apparatus for transporting a vehicle having left and right front wheels in an idle state and left and right rear wheels in an idle state forward along a transport path. The front anti-vibration means for pressing the anti-vibration members against the inner and outer side surfaces of the left and right front wheels to direct the front wheels in the traveling direction, and the front anti-vibration elements arranged in front of the front wheels. Front holding member for restricting forward movement of the front wheel, and a propulsion means having a rear holding member arranged at the rear part of the front wheel for propelling the front wheel, and the shake preventing means movable along a transport path. And a conveyance driving means having a propulsion means, and the conveyance driving means pushes forward the rear hold member together with the shake preventing member and the front hold member, so that the vehicle is conveyed along the conveyance path via the front wheels. Move it forward It is those, which is configured as.

According to the above structure, the runout preventing member is pressed against the side surfaces of the left and right front wheels to direct the front wheels in the traveling direction, and the rear hold member pushes the front wheels from the rear to the front. Roll the wheels to start the car,
It can be advanced along the transport path. Further, the front hold member can restrict the rolling-out of the vehicle toward the front when the vehicle is decelerated or stopped during transportation, and the transportation and stopping can be performed accurately.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle carrier according to the present invention will be described with reference to the drawings. This car carrier is, for example, a car manufacturing facility, a test facility, a lifting facility, a storage facility, or a transport line between facilities. The front wheels, which are the steered wheels, are pushed to move the chassis, and the rolling of the wheels is used to convey the vehicle. In this embodiment,
The description will be made on the assumption that the left and right wheels are respectively mounted and the vehicle is carried on a carrying path from a terminal end of a conveyor line for carrying vehicles to a predetermined exit position.

As shown in FIGS. 1 to 4, a transporting device of this vehicle has a pair of left and right conveyor devices R along a transporting path L.
Flat traveling rails 2R and 2L, which are guide means, are disposed on both sides of a conveying groove 1 formed between C and LC and extending over the conveying floor F, and guide rails 2R and 2L.
A transport carriage 3 that is a transport drive means that is movable by being guided by R and 2L, and left and right front wheels F mounted on the transport carriage 3.
Anti-vibration roller 4 which is an anti-vibration member on both inner side surfaces of W
A shake prevention device 5 that presses R and 4L to direct the front wheel FW in the traveling direction, and a front hold member that is mounted on the carriage 2 and protrudes from the front part of the front wheel FW to restrict the forward movement of the front wheel FW. Front hold rollers 6R, 6L, and a rear holding member arranged behind the front wheels FW for propelling the front wheels FW, and a propulsion device 8 (propulsion means) having rear hold rollers 7R, 7L which are rear holding rotation rollers. It has.

As shown in FIGS. 2 to 4, the transport carriage 3 is composed of a carriage portion 3a and a driving portion 3b. The carriage portion 3a has traveling rollers 11 rolling on the upper traveling surfaces of the traveling rails 2R and 2L. And the anti-floating roller 12 that rolls on the lower surface are arranged in the front and rear, and the anti-sway roller 13 that sandwiches both side surfaces of the right traveling rail 2R is arranged in the front portion.

As shown in FIGS. 5 and 6, the drive unit 3b has a large-diameter traveling drive roller 14 which is in contact with the inner surface of the right traveling rail 2R, and the traveling drive roller 14 has the right traveling rail 2R.
A reaction force receiving roller 15 is provided on the outer side with R interposed therebetween. That is, the drive unit frame 16 is provided with a pair of front and rear slide shafts 17 in the left-right direction, and the drive unit 19 is slidably arranged in the left-right direction via the receiving frame 18 on the slide shafts 17. The traveling drive roller 14 is attached to the output shaft of the drive unit 19.
Is mounted, and the drive unit 19 is urged to the right side via the receiving frame 18 by the pressure spring 17a which is fitted onto the slide shaft 17 and whose left end is regulated by the nut 17b. It is pressed against the inner surface of the right traveling rail 2R with a predetermined pressure through an opening 16b formed in the drive unit frame 16. The reaction force receiving roller 15 is attached to the drive unit frame 16 via a bracket 16a. Reference numeral 18a is a traveling drive motor provided in the drive unit 18. Also this carrier 3
The power source is supplied to the power supply device and its associated device via a cable bearer (not shown), but when the transport path L is long, power is supplied from the power supply rail via a current collector or a non-contact current collector. You can also

As shown in FIGS. 7 and 8, the shake preventive device 5 has a pair of front and rear shake preventive rollers 4R and 4L, respectively, and is guided by a left and right linear guide 20 so as to be movable in a pair. The cradle 21R, 21L and the cradle 21R, 21L are synchronously moved in and out to prevent the shake preventing roller 4
The R / 4L is composed of a roller pressing device that presses the inner surface of the front wheel FW, which is a retracting mechanism 22, and a retracting cylinder device 23 that is a retracting actuator that drives the retracting mechanism 22.

The output / retraction mechanism 22 is composed of a rack and pinion, and an input pinion 25a and an output pinion 25b are provided on a support frame 24 provided on the carriage 3a.
A pinion shaft 25 to which is fixed is rotatably supported. An input rack shaft 26 connected to the piston rod of the retractable cylinder device 23 is slidably provided in the support frame 24, and the tooth portion of the input rack shaft 26 is meshed with the input pinion 25a. In addition, the access platform 21R, 2
A pair of left and right output rack shafts 27 that are respectively connected to 1L
Output rack shafts 2 formed with R and 27L slidably provided in the support frame 24 so as to face each other.
The teeth of 7R and 27L are meshed with the output pinion 25b. Reference numeral 28 is a limit switch for detecting the extension / retraction of the input rack shaft 26.

Therefore, by expanding and contracting the retractable cylinder device 23, the output pinion 25b is rotated via the input rack shaft 26, and the two output rack shafts 27R and 27R are provided.
L is projected and retracted in a relative direction with respect to each other
R and 21L are synchronously moved in and out, and shake prevention rollers 4R and
4L can be brought into contact with the front and rear positions of the wheel shaft on the lower inner surface of the front wheel FW.

Support rods 29 are supported at the front and rear positions so as to be able to extend and retract in the left and right directions on the retractable stands 21R and 21L, and shake preventing rollers 4R and 4L are attached to the tip ends of these support rods 29 via brackets 30. Are rotatably provided. The support rod 29 is used for the platform 2
A coil spring 31 interposed between the 1R and 21L and the bracket 30 urges the coil spring 31 in the protruding direction. As a result, when the projecting / retracting stands 21R, 21L are projected and the shake preventing rollers 4R, 4L contact the inner surface of the front wheel FW, the coil spring 31 is compressed, and the limit switch 32 for detecting the position of the bracket 30 detects this. Then, it is detected that the shake preventing rollers 4R, 4L have come into contact with the front wheels FW, respectively, and the progress of the retractable cylinder device 23 is stopped.

Further, the shake preventing rollers 4R and 4L are
In order to avoid contact with the wheel, a taper roller having a smaller diameter toward the upper part is adopted, and the rotation axes of the shake preventing rollers 4R and 4L are set so as to be oriented substantially in the wheel axis WS direction. Here, the reason why the direction of the wheel shaft is substantially the same is that the tire diameter of the front wheel FW differs depending on the vehicle type and the position of the wheel shaft changes. As a result, the shake prevention roller 4R,
4L can be made to correspond to the peripheral speed of the inner surface of the front wheel FW, and contact of the front wheel FW with the wheel can be avoided.

Here, the transport path L is the conveyor devices RC and L.
Since the straight path is continuous to C, the pair of front and rear shake preventing rollers 4R and 4L are arranged on a parallel line with the transport path L so that the front wheel FW goes straight, but the transport path is a curved path. In this case, front and rear shake prevention rollers 4R,
It is also possible to move the front wheels FW forward along a curved conveyance path having a large turning radius by shifting the 4L in the left-right direction and inclining the direction of the front wheels FW. Further, by providing the front and rear shake preventing rollers 4R and 4L with actuators that can move in and out separately, it is possible to switch the traveling direction from linear movement to curved movement or vice versa in the middle of the conveyance path L.

As shown in FIGS. 9 and 10, the propulsion device 9 includes front hold rollers 6R and 6L and rear hold rollers 7R and 7L and vertical pins 41R, 41L and 4 respectively.
2R, 42L is rotated by 90 ° to move back and forth between the standby position (a) along the transport path L indicated by the imaginary line and the left-right use position (a) indicated by the solid line, and the reaction force is applied. A front hold roller rotation device 43 and a rear hold roller rotation device 44 are provided that can be effectively absorbed.

The front hold roller rotating device 43 is provided with a linear rail 5 arranged along the transport path L on the carriage 2a.
A movable base 52 is movably arranged on the first unit 1 via a slider. A front rotating cylinder device 53, which is an actuator for moving in and out, is disposed below the linear rail 51, and its piston rod is connected to the front end of the movable table 52. The L-shaped link 5 having the roller support members 56L and 56R at one end is provided on the vertical pins 41R and 41L arranged on the outer side of the linear rail 51 in the frame of the carriage 2a.
4R and 54L are rotatably supported, and the other ends of the L-shaped links 54R and 54L and the movable base 52 are pin-connected via connection links 55R and 55L. The roller support members 56L and 56R include front hold rollers 6R and
6L is rotatably supported.

In the rear hold roller rotating device 44, a movable base 62 is movably arranged on a linear rail 51 via a slider. Further, at the bottom of the linear rail 51, there is a rear rotary cylinder device 63 which is an actuator for moving in and out.
Is arranged, and its piston rod is connected to the rear end of the movable table 62. L-shaped links 64R and 64L having roller bearings 67L and 67R at one end thereof are rotatably supported on the vertical pins 42R and 42L arranged outside the linear rail 51 in the frame of the carriage 2a. The other ends of the L-shaped links 64R and 64L and the movable base 62 are pin-connected via the connection links 65R and 65L.
A horizontal pin 66 is provided at one end of each of the L-shaped links 64R and 64L.
The roller bearings 67L and 67R are swingably supported upward from the horizontal position via the roller bearings 67L and 67R.
Further, the base ends of the rear hold rollers 7R and 7L are rotatably supported. The rear hold rollers 7R, 7L are arranged lower than the front hold rollers 6R, 6L and have a large diameter at the tip, and by supporting the roller bearings 67L, 67R via the horizontal pin 66,
It is possible to escape upward with respect to the obstacle on the transport floor surface F.

The front roller rotating device 43 and the rear roller rotating device 44 are L-shaped links 54 at the positions where the front and rear hold rollers 6R, 6L, 7R, 7L are used.
The other end of R, 54L, 64R, 64L and the connection link 55
R, 55L, 65R, 65L form 90 ° with each other, and front and rear hold rollers 6R, 6L, 7R,
The moment the 7L receives from the front wheels FW is the connecting link 55.
R, 55L, 65R, 65L are loaded only as a compression force, and front and rear rotary cylinder devices 53, 6
The piston rod 3 is not directly loaded. Therefore, especially the rear hold rollers 7R, 7
A large reaction force is applied to L when the vehicle having a vehicle weight of 200 kg or more is started.
There is no need to hold it in place and the structure can be simple.

Further, the rear hold rollers 7R, 7L
Is formed in a taper roller having a smaller diameter toward the base end side, and the vehicle is stably moved forward by directing the conveying force, which abuts and presses the left and right front wheels FW, toward the front side toward the center of the vehicle body, not toward the straight traveling direction. Is composed of. Further, receiving rollers 68R and 68L having a diameter larger than that of the large diameter portion are rotatably attached to the front ends of the rear hold rollers 7R and 7L. The receiving rollers 68R and 68L are pressed against the rear hold rollers 7R and 7L by the reaction force when they come into contact with and pressurize the front wheels FW, come into contact with the conveying floor surface F, and can effectively receive the reaction force. .

Next, a carrying method using the car carrying device will be described. The vehicle M having left and right wheels mounted on the conveyor devices RC and LC and conveyed at a predetermined speed is free from side brakes, missions and the like, and all wheels are idle. Further, for example, a front wheel FW having a steering wheel function
Is set to face straight, but it may not be fixed and may be slightly offset. When this car approaches the end part and is detected by a detector (not shown), the carriage 3 stopped at the start point of the conveyance path L is started and moved in synchronization with the car M to prevent shake. The retractable cylinder device 23 of the device 5 is driven to cause the retractable stands 21R and 21L to project outward through the retractable mechanism 22 to prevent the shake preventing roller 1
The 4R and 4L are brought into contact with the inner surface of the front wheel FW. At the same time, the front and rear hold roller rotating devices 4 of the propulsion device 8
3, 44 are driven to rotate the front hold rollers 6R, 6L and the rear hold rollers 7R, 7L by 90 ° from the standby position (A) to the use position (A) so as to project to the front and rear positions of the front wheel FW.

When the vehicle M is lowered from the end of the conveyor device RC, LC, the rear hold rollers 7R, 7L abut on the rear part of the front wheel FW to propel the front wheel FW forward. At this time, the rear hold rollers 7R, 7L are pushed down by the conveyance reaction force because the contact surface of the front wheel FW is an inclined arcuate surface directed obliquely downward and downward, but the receiving rollers 68R, 68L contact the conveyance floor surface F. Since it rolls, the front wheel FW will not be pushed down below a certain position. Therefore, the rear hold rollers 7R and 7L do not pass below the front wheels FW, and the front wheels FW can be favorably propelled. Further, since the rear hold rollers 7R and 7L are formed as taper rollers having a smaller diameter toward the base end side, the conveying force for contacting and pressurizing the left and right front wheels FW is not directed in the straight direction but toward the center side forward of the vehicle M. It is directed so that the vehicle can move forward steadily. Further, since the roller bearings 67 of the rear hold rollers 7R and 7L are supported by the horizontal pin 65 so as to be able to escape upward, even if there is an obstacle on the conveyance floor surface F, it can be avoided by rotating upward. The transport can continue. Further, the rear hold rollers 7R and 7L have a propulsion reaction force supported by the rear hold roller rotation device 44 having the L-shaped links 64R and 64L, and are not directly applied to the rear rotation cylinder device 63, so that large propulsion is achieved. The rear rotation cylinder device 63 is not damaged by the reaction force.

When reaching the end point of the transport route L, the transport carriage 3 is stopped, and the moving-out cylinder device 23 of the shake preventing device 5 is stopped.
Is driven to move in and out via the W exit / entrance mechanism 22.
1L is retracted to the outside, and shake prevention rollers 34R, 34L
Is retreated. Further, the front and rear hold roller rotating devices 43 and 44 of the propulsion device 8 are driven to drive the front hold rollers 6R and 6L and the rear hold rollers 7R and 7L.
L is rotated 90 degrees from the use position (a) to the standby position (a) and retracted. Then, the transport carriage 3 is moved backward and returned to the start point of the transport path L.

According to the above embodiment, 1. The runout prevention rollers 4R, 4L are pressed to the front and rear positions by the side surfaces of the left and right front wheels FW to direct the front wheels FW in the traveling direction, and the rear hold rollers 7R, 7L push the front wheels FW forward from the rear to rotate the front wheels FW. The vehicle can be started by moving the vehicle and moved forward along the transport path L. Further, the rolling forward of the vehicle M due to deceleration or stop is regulated by the front hold rollers 6R, 6L, and the front wheel FW can be regulated during deceleration or stoppage in the middle of conveyance, and accurate conveyance and stop are performed. be able to.

2. Exit stand 21R, 2 of shake prevention device 5
By providing a pair of front and rear shake prevention rollers 4R and 4L on 1L,
By making pressure contact with the front and rear positions at the lower portion of the inner surface of the front wheel FW, the resistance is small and the steering direction of the front wheel FW can be maintained in a predetermined direction. In addition, these shake prevention rollers 4
Since R and 4L are tapered rollers having a smaller diameter toward the top, and the rotation axes of the shake preventing rollers 4R and 4L are set to be oriented substantially in the wheel axis direction, the shake preventing rollers 4R and 4L are rotated at the peripheral speed of the inner surface of the front wheel FW. Accordingly, the frictional resistance can be reduced and the rotation of the front wheels FW is not impaired. It is also possible to avoid contact of the front wheels FW with the wheels.

3. Front hold roller 6 on propulsion device 8
Since the R and 6L and the rear hold rollers 7R and 7L are provided, the frictional resistance due to the contact with the front wheels FW can be minimized. In addition, the rear hold roller 7R,
By forming 7L in a taper shape having a smaller diameter toward the base end side, the propulsive force applied to the front wheels FW can be directed toward the center front of the vehicle M, and the vehicle can be stably advanced.

4. Between the rear hold rollers 7R and 7L and the rear rotation cylinder device 63, the L is connected to the rear hold roller rotation device 44 at an angle of 90 ° in the use position.
Shaped links 64R, 64 and connecting links 65R, 65L
Since the link mechanism having the above is provided, the propulsive reaction force from the front wheels FW can be held by these link mechanisms, and a large load is not applied to the rear rotation cylinder device 63, which can be simplified.

5. A transport groove 1 in which a transport carriage 3 including a shake preventing device 5 and a propulsion device 8 is formed between the left and right front wheels FW.
Since it is arranged inside, the whole size can be made smaller and the synchronous driving of the left and right members can be easily performed as compared with the case where the transport drive units are provided on both outer side portions of the vehicle.

In the above embodiment, the carriage 3 is arranged in the middle portion of the front wheel FW, but it may be arranged on both sides to be interlocked. Further, although the front wheels are the front wheels FW, they may be the rear wheels.

[0032]

As described above, according to the vehicle transporting method and apparatus of the present invention, the shake preventing member is pressed against the side surfaces of the left and right front wheels to direct the front wheels in the traveling direction, and the rear holding member. Thus, by pushing the front wheels forward from the rear, the front wheels can be rolled to start the vehicle and move forward along the transport path. Further, the front hold member can restrict the rolling-out of the vehicle toward the front when the vehicle is decelerated or stopped during transportation, and the transportation and stopping can be performed accurately.

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram showing an embodiment of a vehicle carrier according to the present invention.

FIG. 2 is an overall plan view of a transfer device of the vehicle.

FIG. 3 is an overall side view of a transfer device of the vehicle.

FIG. 4 is an overall front cross-sectional view of a carrier device of the vehicle.

FIG. 5 is a plan view showing a drive unit of the carrier vehicle.

FIG. 6 is a side view showing a drive unit of the carrier vehicle.

FIG. 7 is a plan view showing the same shake preventing device.

FIG. 8 is a side sectional view showing a retracting mechanism of the shake preventing device.

FIG. 9 is a plan view showing the propulsion device.

FIG. 10 is a side view showing the propulsion device.

[Explanation of symbols]

 L transport path FW front wheels (front wheels) 1 transport grooves 2R, 2L traveling rails 3 transport carriages (transport drive means) 4R, 4L shake prevention rollers (shake prevention members) 5 shake prevention devices (shake prevention means) 6R, 6L front Section hold roller (front hold member) 7R, 7L rear hold roller (rear hold member) 8 propulsion device (propulsion means) 21R, 21L exit / retract platform 22 exit / retract mechanism 23 exit / retract cylinder device 25 pinion shaft 25a input pinion 25b output Pinion 26 Input rack shaft 27R, 27L Output rack shaft 41R, 41L Vertical pin 42R, 42L Vertical pin 43 Front hold roller rotating device 44 Rear hold roller rotating device 53 Front rotating cylinder device 54R, 54L L-shaped link 55R , 55L Connection link 63 Rear rotation cylinder device 64R, 64L L-shaped link 65R, 65L Connection link 66 Horizontal pin 67 Roller bearing 68 Receiving roller

Claims (4)

[Claims] 1. When a vehicle having left and right front wheels in an idle state and left and right rear wheels in an idle state is conveyed forward along a conveyance direction, both inner side surfaces of the left and right front wheels or The front wheels are directed in the direction of travel by pressing the anti-sway members against both outer surfaces, and the front hold members are placed in front of the left and right front wheels to restrict the forward movement of the front wheels. By moving the rear hold member arranged at the rear part of the front wheel, the front hold member and the shake preventing member respectively to the front synchronously, and pushing the front wheel forward by the rear hold member, the front wheel is moved. A method of transporting a vehicle, which comprises rotating the vehicle to move it forward. 2. A shake preventing member, a front hold member and a rear portion which are pressed against both inner side surfaces of the left and right front wheels by a transfer drive means which is movably arranged between the left and right wheels of the vehicle along the transfer direction. 2. The vehicle transportation method according to claim 1, wherein the holding member is driven in the transportation direction. 3. A vehicle transporting apparatus for transporting a vehicle having left and right front wheels in an idle state and left and right rear wheels in an idle state forward along a transport path, wherein Anti-vibration means that pushes anti-vibration members against both inner and outer side surfaces of the wheel to direct the front wheels in the traveling direction, and restricts forward movement of the front wheels by being arranged at the front of the front wheels. A propulsion unit having a front hold member and a rear hold member disposed behind the front wheel to propel the front wheel, and a conveyance drive unit movable along the conveyance path and having the shake prevention unit and the propulsion unit. And the rear drive member is pushed forward by the transport drive means together with the shake preventing member and the front hold member to move the vehicle forward along the transport path via the front wheels. Characterized by And a car carrier. 4. A guide means is provided between the left and right wheels of the vehicle along the carrying direction, and a carrying drive means is movably provided along the guiding means. The carrying drive means is provided with front wheels. 4. A propulsion unit having a shake prevention member having an anti-sway member pressed against the inner surface thereof, and a front hold member and a rear hold member that can be retracted and retracted on the front wheel side. Car carrier.