JP3111337B2 - Mechanical parking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical parking device provided with a carriage which carries a vehicle and moves in a horizontal direction or a vertical direction, and particularly relates to measures against runaway of the carriage.

[0002]

2. Description of the Related Art Generally, a mechanical parking device is provided with runaway preventing means for preventing runaway of a carrier (carrier or elevator) moving on a transport path. As the runaway prevention means, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-210170, a proximity switch detects the position of the transport vehicle and outputs a position signal, and based on the position signal, determines the speed of the transport vehicle. It is known that an emergency stop is performed before the end stop position when the speed is calculated and the speed of the transport vehicle exceeds a predetermined set speed.

[0003] In addition, when the transport vehicle collides with the end wall of the transport path or the like without stopping even by such runaway prevention means, a telescopic shock absorbing member for absorbing the impact may be provided. For example, in the mechanical parking device shown in FIG. 8, on both sides of the transport path 103 on which the transport cart 101 moves,
A plurality of spaces b, b,.
Are arranged in a line, and the side of the space b at the end of the space line c is set on the transport carriage 10.
As the first stop position d, the transport vehicle 101 stops at the last stop position d during normal operation. A terminal wall 105 is provided outside the carrier 101 stopped at the terminal stop position d.
5 is provided with a telescopic shock absorbing member 107. The telescopic shock absorbing member 107 includes a cylinder 109 and a shaft 11.
And 1. The shaft 111 is always in a protruding state, and is installed so that the tip of the shaft 111 does not contact the carriage 101 stopped at the terminal stop position d. The telescopic shock absorbing member 107 generates a damping force when the runaway carrier 101 suddenly pushes the shaft 111 into the cylinder 109, and absorbs the impact on the carrier 101 and the end wall 105. .

[0004]

However, in the above-mentioned conventional parking device, the transport carriage 1 stopped at the end stop position d.
01 and the end wall 105
While the parking device becomes longer by the amount of
An unusable dead space e occurs between the end wall 105 and the end wall 105. For this reason, there is a problem that it becomes an obstacle to space saving of the parking device and reduction of the construction cost.

The present invention has been made in view of the foregoing, and an object of the present invention is to provide a transport vehicle stopped at a terminal stop position and a terminal wall, regardless of the installation of a telescopic shock absorbing member. The space between the parking devices is reduced as much as possible, thereby saving the space of the parking device and the construction cost.

[0006]

Means for Solving the Problems To achieve the above object, a solution taken by the invention according to claim 1 is a transportation path extending linearly in a horizontal direction or a vertical direction, and a transportation path on which a vehicle is mounted. A transfer table that moves on a path, a terminal wall provided at the end of the transfer path, and a telescopic shock absorbing member provided on the end wall so as to protrude inward in the transfer direction of the transfer table. When the carriage is stopped at a predetermined terminal stop position before the terminal wall, the telescopic shock absorbing member gently abuts the carrier and the projecting length is gradually reduced to reduce the damping force. Does not occur, on the other hand, when the transfer table exceeds the terminal stop position, the protrusion is suddenly brought into contact with the transfer table, the protrusion length is rapidly reduced, and a damping force is generated. Features.

The solution taken by the invention according to claim 2 is as follows:
2. The mechanical parking device according to claim 1, wherein the telescopic shock absorbing member is formed by a cylinder provided on the end wall, and protrudes inward in the transport direction of the transport base from the cylinder and is applied by an external force. A shaft that absorbs an impact when suddenly pushed into the cylinder, wherein the shaft of the telescopic shock absorbing member is configured such that when the carrier stops at a predetermined terminal stop position before the terminal wall, When the carriage is beyond the end stop position, it comes into abrupt contact with the carriage and is suddenly pushed into the cylinder. It is characterized by being.

The solution taken by the invention according to claim 3 is as follows:
A transport path extending linearly in the horizontal or vertical direction, a transport platform on which a vehicle is mounted and moving on the transport pathway, a terminal wall provided at an end of the transport pathway, and transport of the transport platform to the transport platform. A telescopic shock absorbing member provided so as to protrude outward in the direction, wherein the telescopic shock absorbing member is configured such that when the carrier stops at a predetermined terminal stop position before the terminal wall, the terminal wall is closed. And the projecting length is gently reduced to generate no damping force.On the other hand, when the transfer table exceeds the end stop position, the projecting length suddenly comes into contact with the end wall and the projecting length suddenly decreases. And a damping force is generated.

[0009] The solution taken by the invention according to claim 4 is as follows.
4. The mechanical parking device according to claim 3, wherein the telescopic shock absorbing member includes a cylinder provided on the carrier, and a cylinder protruding outward from the cylinder in the carrier direction with respect to the carrier. A shaft that absorbs an impact force when suddenly pushed into the shaft, wherein the shaft of the telescopic shock absorbing member is configured to terminate when the carrier stops at a predetermined terminal stop position before the terminal wall. When it comes into gentle contact with the wall and is gently pushed into the cylinder, on the other hand, when the carriage exceeds the terminal stop position, it comes into rapid contact with the terminal wall and is suddenly pushed into the cylinder. It is characterized by being.

The solution taken by the invention according to claim 5 is as follows.
5. The mechanical parking device according to claim 4, wherein the transport path extends in a horizontal direction, and the cylinder is provided so as to overlap the transport table when viewed from above in a plan view. I do.

[0011]

According to the first aspect of the present invention,
When the carriage stops at a predetermined terminal stop position before the terminal wall, the extendable shock absorbing member protruding from the terminal wall has its protrusion length gradually reduced by the carrier,
The telescopic shock absorbing member does not generate a damping force, and does not hinder the carriage from stopping at the terminal stop position. Therefore, the distance between the carriage and the end wall is
The projection length is reduced by the reduced length.

On the other hand, when the transfer table runs out of control at a relatively high speed beyond the end stop position, the projecting length of the telescopic shock absorbing member is sharply reduced, so that the telescopic shock absorbing member generates a damping force. To absorb the impact of the collision.

[0013] In particular, in the invention according to claim 2, the telescopic shock absorbing member according to the invention according to claim 1 has a cylinder and a shaft. It comes into contact with the carriage and is gently pushed into the cylinder. At this time, the telescopic shock absorbing member does not generate damping force, and there is no hindrance to stopping the carrier at the terminal stop position. The distance between the carriage and the end wall is reduced by the amount that the shaft is pushed in.

On the other hand, when the carriage moves at a relatively high speed beyond the end stop position, the shaft is suddenly pushed into the cylinder, and the telescopic shock absorbing member generates a damping force to generate the impact force of the collision. Absorb.

According to the third aspect of the present invention, when the carrier is stopped at the terminal stop position, the projecting length of the telescopic shock absorbing member from the carrier is gradually reduced by the end wall. The carrier stops at the terminal stop position without the shock absorbing member generating damping force, and the distance between the carrier and the terminal wall is reduced by the decrease in the protruding length.

Further, in the invention according to claim 4, the telescopic shock absorbing member according to the invention according to claim 3 has a cylinder and a shaft, and when the carrier is stopped at the terminal stop position, the shaft is moved. It is gently pushed into the cylinder in contact with the end wall. The telescopic shock absorbing member does not generate a damping force, the carrier stops at the terminal stop position, and the distance between the carrier and the terminal wall is reduced by the amount by which the shaft is pushed.

According to the fifth aspect of the present invention, the cylinder of the telescopic shock absorbing member of the fourth aspect of the present invention is provided so as to be overlapped with the carriage in a plan view from above. When the carrier is stopped at the terminal stop position before the terminal wall, no cylinder is interposed between the carrier and the terminal wall, and the distance between the carrier and the terminal wall is smaller.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show parking equipment to which a mechanical parking device according to a first embodiment of the present invention is applied. FIG.
FIG. 2 is a sectional view of a parking facility. FIG. 2 is a plan view of the mechanical parking device.

The parking facility 1 is provided in the basement and has three mechanical parking devices 3, 3 and 3 in the upper and lower directions. Each mechanical parking device 3 is a plane reciprocating parking device, and one space row L is disposed on each side of the transport path 5, and the space row L includes a plurality of spaces each capable of storing a vehicle W. .. Are arranged in series along the transport path 5.

One space S of the space row L on one side
Is provided with a storage elevator space SN, and the storage elevator space SN of the mechanical parking device 3 is disposed below the storage room 7 provided on the ground. It is adapted to be transferred to the mechanical parking device 3. In addition, another space S of the space row L on one side is provided with an elevator space SS for exit, and the elevator space SS for exit is disposed below the exit room 9 on the ground, and an elevator device (not shown) for exit. Thus, the vehicle is transferred from the mechanical parking device 3 to the ground.

In each of the other spaces S in the space row L on one side and all the spaces S in the space row L on the other side, a parking space ST in which a pallet P for mounting on a vehicle is stored is provided. The ST is provided with a parking shelf (not shown) on which the pallet P is placed.

The transfer path 5 is provided with a transfer carriage 11 serving as a transfer table on which the pallet P is placed and moved. The transfer carriage 11 moves along the transfer path 5 to form a parking space ST and a storage space SN. During this time, the pallet P is transported between the parking space ST and the elevator space SS. In addition, the parking shelf and the transport vehicle 1
1 is provided with a plurality of lateral feed rollers arranged in a lateral direction orthogonal to the transport direction, and the pallets P are transferred between the parking space ST and the transport cart 11 by the lateral feed rollers. ing.

The carriage 11 has four wheels 13, 13 on the front, rear, left and right. The left and right wheels 13 are driven by a motor (not shown) so as to run on guide rails 15 provided on the transfer path 5. Has been. The transport cart 11 is
The side of the parking space ST located at the end of the space row L is set as the end stop position A, and moves between the end stop positions A, A at both ends during normal operation.

The transport path 5 extends from the terminal stop position A to the outside in the transport direction, and the terminal path 17
Is provided. The end wall 17 has two telescopic shock absorbing members 23 having a cylinder 19 and a shaft 21.
Is provided. The space between the carriage 11 stopped at the end stop position A and the end wall 17 is a space for providing the telescopic shock absorbing member means 23 and is not used for parking purposes. The provision of the member 23 causes a dead space D that cannot be used at all between each space row L and the end wall 17.

The cylinder 1 of the telescopic shock absorbing member 23
9 is provided on the end wall 17, while the shaft 21 protrudes inward in the transport direction from the cylinder 19, and absorbs an impact force when it is suddenly pushed into the cylinder 19 by an external force. It has been like that. Also,
The shaft 21 is arranged so as to come into contact with the transport vehicle 11 and be gently pushed into the cylinder 19 when the transport vehicle 11 stops at the terminal stop position A before the terminal wall 17. In addition, the telescopic shock absorbing member 23 is
After the shaft 1 has moved from the terminal stop position A to the center side, the shaft 21 is returned to the protruding state.

As shown in FIG. 1, in the mechanical parking device 3 in the upper stage, the transport vehicle 11 is stopped at the terminal stop position A on the left side in the figure, and the shaft 21 of the telescopic shock absorbing member 23 on the left side is immersed. On the other hand, the shaft 21 of the telescopic shock absorbing member 23 on the right side is in a protruding state. In the mechanical parking device 3 in the middle stage, the transport trolley 11 is stopped in the elevator elevating space SS, and the shafts 21 of the telescopic shock absorbing members 23 on both sides are in a protruding state. In the mechanical parking device 3 at the lower stage, the transport trolley 11 is stopped at the terminal end stop position A on the right side in the drawing, and the shaft 21 of the right-side telescopic shock absorbing member 23 is in the immersion state, while the left-side telescopic shock absorbing member 23 is telescopic. The shaft 21 of the shock absorbing member 23 is in a protruding state.

Further, the mechanical parking device 3 includes a rotary encoder and a controller. The controller receives the position signal of the transport vehicle 11 from the rotary encoder, and controls the speed of the transport vehicle 11 when the transport vehicle 11 exceeds a predetermined position before the end stop position A. Is reached, the power of the motor is shut off, and the mechanical brake of the motor is operated to stop the carriage 11.

Next, the operation of the mechanical parking device 3 will be described. The carriage 11 is decelerated before the end stop position A under the control of the controller, and approaches the end stop position A at a low speed. At this time, the carriage 11 comes into contact with the distal end of the shaft 21 in the projecting state of the telescopic shock absorbing member 23, gently pushes the shaft 21 into the cylinder 19 with the low-speed movement, and stops at the terminal end stop position A. Therefore, the telescopic shock absorbing member 23 does not generate a damping force, and there is no hindrance to the stop of the transport vehicle 11 at the terminal stop position A.

On the other hand, when the transport vehicle 11 runs away due to a controller abnormality or the like, the runaway transport vehicle 11 comes into contact with the shaft 21 just before the terminal stop position A and rapidly pushes the shaft 21 into the cylinder 19. Therefore, the telescopic shock absorbing member 23 generates a damping force,
The impact force applied to the carrier 11 and the end wall 17 is absorbed.

As described above, according to the first embodiment, when the carriage 11 stops at the terminal stop position A before the terminal wall 17, the shaft 21 of the telescopic shock absorbing member 23 is gently inserted into the cylinder 19. Since it is configured to be pushed in, the distance between the transport vehicle 11 stopped at the terminal stop position A and the terminal wall 17 by the immersion length of the shaft 21 becomes smaller, the dead space D becomes smaller, and the machine becomes smaller. Space saving of the parking system 3 and reduction of construction costs can be achieved. When the cylinder 19 is embedded in the terminal wall 17 and only the shaft 21 is projected from the terminal wall 17 to the transport path 5, the distance between the transport vehicle 11 and the terminal wall 17 can be further reduced.

FIGS. 3 and 4 show a second embodiment of the present invention. FIG. 3 is a front view of the mechanical parking device when the shaft of the telescopic shock absorbing member is in a submerged state.
FIG. 4 is a front view of the mechanical parking device when the shaft of the telescopic shock absorbing member is in a protruding state.

The mechanical parking device 3 according to the present embodiment is of a lift type, is installed in a pit 25 provided on the floor above the ground, and is provided on both sides of a transport path 5 extending linearly in the vertical direction. Each space row L is provided, and in each space row L, a plurality of spaces S, S,... Each capable of storing a vehicle W are arranged in a shelf along the transfer path 5. A lift table 27 as a transfer table is provided in the transfer path 5, and a vehicle that has entered from the outside on the first floor rides on the pallet P on the lift table 27, lifts the lift table 27, and places the vehicle on the pallet P. The vehicle W is transferred to each parking space ST. The first floor portion of the transport path 5 is a terminal stop position A below the elevator 27.

In the pit 25, a telescopic shock absorbing member 23 is provided.
Is installed. The telescopic shock absorbing member 23 has the same cylinder 19 and shaft 21 as in the first embodiment.
The shaft 21 protrudes upward, and absorbs an impact force when the shaft 21 is rapidly pushed into the cylinder 19 by the elevating platform 27 that has descended at a high speed, and the elevating platform 27 is mounted on the tip of the shaft 21. It is configured as follows.

In the second embodiment, the elevating platform 27 descending
When approaching the floor, the vehicle is decelerated under the control of the controller and comes into contact with the protruding shaft 21. The elevating platform 27 descends at a low speed and gently pushes the shaft 21 into the cylinder 19 to stop at a predetermined terminal stop position A. When the lift 27 is lowered at a high speed, such as when a wire rope (not shown) that suspends the lift 27 is cut off, it hits the shaft 21 of the telescopic shock absorbing member 23 at a high speed.
Is suddenly pushed into the cylinder 19, the telescopic shock absorbing member 23 generates a damping force,
Elevator 27 and bottom wall 25 of pit 25 as terminal wall
The shock that a receives is absorbed.

According to the second embodiment as well, the distance between the elevator 27 stopped at the terminal stop position A and the bottom wall 25a, which is the terminal wall, is reduced by the immersion length of the shaft 21, and the dead space D is reduced. The depth of the pit 25 can be reduced, and the space and the construction cost of the mechanical parking device 3 can be reduced.

FIGS. 5 to 7 show a third embodiment of the present invention.
FIG. 5 is a plan view of the mechanical parking device. FIG. 6 is an enlarged plan view of an end of the transfer table. FIG. 7 is an enlarged front view of the end of the transfer table.

The mechanical parking device 3 according to the third embodiment is a reciprocating flat parking device similar to that of the first embodiment, in which a telescopic shock absorbing member 23 is provided on a carrier 11. The transport trolley 11 includes a rectangular frame-shaped trolley body 29. The bogie main body 29 has four wheels 13 in front, rear, left and right,
A motor 31 for driving two wheels 13 on the left and right;
3 is provided with a power transmission means 33 for transmitting the power of the motor 31. Also, on the upper part of the bogie body 29,
A plurality of lateral feed rollers 35 arranged in the lateral direction are provided, and the pallet P is transported between the transport trolley 11 and the parking space ST by the lateral feed rollers 35 and the lateral feed rollers (not shown) provided in the parking space ST. It is configured to be transferred between.

The front and rear portions of the bogie main body 29 are provided with telescopic shock absorbing members 23, respectively.
The cylinder 19 of each telescopic shock absorbing member 23 is
9 by being mounted in the frame of
1 are provided so as to overlap in plan view from above. On the other hand, the shaft 21
9, penetrates the bogie main body 29, protrudes outward in the transport direction from the transport bogie 11, and can be immersed in the cylinder 19 from the protruding state to the outer surface of the bogie main body 29. It is configured to absorb the impact force when it is suddenly pushed into. The shaft 21 is configured to come into contact with the terminal wall 17 and be gently pushed into the cylinder 19 when the carrier 11 is stopped at the terminal stop position A.

When the telescopic shock absorbing member 23 approaches the predetermined terminal stop position A at a low speed, the bogie main body 29
Shaft 21 protruding from the end wall 17 abuts. The shaft 21 is gently pushed into the cylinder 19 by the end wall 17 with the movement of the carrier 11. When the carrier 11 runs away, the shaft 21 hits the end wall 17 and is suddenly pushed into the cylinder 19 by the end wall, so that the telescopic shock absorbing member 23 generates a damping force, and the impact of the collision is absorbed. You.

According to this embodiment, the telescopic shock absorbing member 2
The third cylinder 19 is provided so as to overlap with the transport vehicle 11 in a plan view when viewed from above, so that the cylinder 19 is located between the transport vehicle 11 stopped at the terminal stop position A and the terminal wall 17. Is not interposed, the distance between the carriage 11 and the end wall 17 at the end stop position A can be further reduced by the length of the cylinder 19 than in the first embodiment, and the dead space D can be further reduced. It is possible to further save the space of the mechanical parking device 3 and reduce the construction cost.

It should be noted that the present invention is not limited to the above-described first to third embodiments, but includes various other modifications. For example, the telescopic shock absorbing member of the present invention is not limited to the telescopic shock absorbing member 23 having the cylinder 19 and the shaft 21, but absorbs an impact force when the total length is rapidly reduced by an external force. For example, a coil spring may be used.

When the coil spring is used, as a modification corresponding to the first embodiment, the coil spring is provided on the end wall 17 so as to protrude inward in the transport direction of the transport trolley 11, and When the carriage 11 is stopped at a predetermined terminal stop position before the terminal wall 17, the length of the coil spring protrudes when the carriage 11 stops.
Are arranged so that they can be gradually reduced.

As a modified example corresponding to the third embodiment, the above-described coil springs are
1 and projecting outward in the transport direction from the end wall 1 when the transport carriage 11 stops at the end stop position.
7 so that it can be gradually reduced.

[0045]

As described above, according to the mechanical parking device of the present invention, when the carriage stops at the terminal stop position before the terminal wall, for example, the shaft of the telescopic shock absorbing member is inserted into the cylinder. Since the length of the telescopic shock absorbing member is gently reduced as it is pushed in, the distance between the transport stand stopped at the terminal stop position and the terminal wall can be reduced, and the parking device requires less space. And construction costs can be reduced.

In particular, according to the invention as set forth in claim 5, the telescopic shock absorbing member is provided on the carriage, and the telescopic shock absorbing member has a cylinder and a shaft. Since the transfer table overlaps with the transfer table in the transfer direction, when the transfer table is stopped at the terminal stop position, no cylinder is interposed between the transfer table and the end wall, and the interval is increased. It is possible to reduce the size, and to further reduce the space of the parking device and the construction cost.

[Brief description of the drawings]

FIG. 1 is a sectional view of a parking facility to which a mechanical parking device according to a first embodiment of the present invention is applied.

FIG. 2 is a plan view of the mechanical parking device.

FIG. 3 is a front view of the mechanical parking device according to the second embodiment of the present invention when the shaft of the telescopic shock absorbing member is in a immersed state.

FIG. 4 is a front view of the mechanical parking device when a shaft of a telescopic shock absorbing member is in a protruding state.

FIG. 5 is a plan view of a mechanical parking device according to a third embodiment of the present invention.

FIG. 6 is an enlarged plan view of an end portion of the transport cart of the mechanical parking device.

FIG. 7 is an enlarged front view of an end portion of the transport vehicle.

FIG. 8 is a plan view of a conventional mechanical parking device.

[Explanation of symbols]

 Reference Signs List 5 transport path 11 transport trolley (transport table) 17 terminal wall 19 cylinder 21 shaft 23 telescopic shock absorbing member 25a pit bottom wall (terminal wall) 27 elevating platform (transport table) A terminal stop position

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04H 6/18 B66B 5/00-5/28

Claims (5)

(57) [Claims] A transport path extending linearly in a horizontal direction or a vertical direction; a transport platform on which a vehicle is mounted to move along the transport path; a terminal wall provided at an end of the transport path; e Bei a telescopic shock absorbing member provided so as to protrude toward the inside of the conveying direction of the conveying table, the telescopic shock-absorbing member, a predetermined end of the front of the carrier table is a final end wall when stopping at the stop position, gently and conveying table
Damping force is brought reduced contact with the the gradual or projecting length
Does not occur on the other hand, while the carrier moves beyond the end stop position.
Abruptly comes into contact with the transfer table, and the protrusion length decreases sharply.
A mechanical parking device characterized in that it is configured to generate a damping force by being reduced. 2. The telescopic shock absorbing member comprises: a cylinder provided on the terminal wall ; and a cylinder protruding inward from the cylinder in a conveying direction of the carrier, and abruptly moved into the cylinder by an external force. A shaft that absorbs an impact force when pushed in, the shaft of the telescopic shock absorbing member, when the carrier stops at a predetermined terminal stop position before the terminal wall ,
Gently abut the upper Symbol conveying table pushed gently into the cylinder, while the transfer platform is the end stop position
When it exceeds, it comes into contact with the carriage suddenly and
Mechanical parking device according to claim 1, characterized in that turned so that pushed rapidly. 3. A transport path extending linearly in a horizontal direction or a vertical direction, a transport table on which a vehicle is mounted and moving on the transport path, an end wall provided at an end of the transport path, and e Bei a telescopic shock absorbing member provided so as to protrude into the conveying table outside of the conveying direction of the telescopic shock-absorbing member, the conveying table a predetermined end stop position before the final end wall When stopping on the end wall and gently
Damping force is brought reduced contact with the the gradual or projecting length
Does not occur on the other hand, while the carrier moves beyond the end stop position.
Abruptly comes into contact with the end wall, causing the protrusion length to decrease sharply.
A mechanical parking device characterized in that it is configured to generate a damping force by being reduced. 4. The telescopic shock absorbing member comprises: a cylinder provided on the carrier ; and a cylinder protruding outward from the cylinder in the carrier direction relative to the carrier, and rapidly pushed into the cylinder by an external force. A shaft that absorbs the impact force when the carrier of the telescopic shock absorbing member stops at a predetermined terminal stop position before the terminal wall ,
Gently abut the end wall is pushed gently into the cylinder, while the transfer platform is beyond the end stop position
Abruptly comes into contact with the end wall and
Mechanical parking device according to claim 3, characterized in that turned so that pushed in. 5. The mechanical parking device according to claim 4, wherein the transport path extends in a horizontal direction, and the cylinder is provided so as to overlap with the transport table when viewed from above in a plan view.