JP2514409B2 - Traversing device for pallets in elevator car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an elevator-type multi-level parking apparatus including an elevator platform that supports a vehicle pallet to raise and lower the pallet.
The present invention relates to a pallet lateral feeding device for laterally feeding a pallet from the top of an elevator.

(Prior Art) Generally, in an elevator type three-dimensional parking apparatus, an elevator is provided so as to support a pallet on which a vehicle is placed so that a central portion of a parking structure can be moved up and down. Is laterally fed to the parking spaces provided on the left and right sides of the hoistway in the parking structure by the lateral feeding device, and the vehicle is parked in each parking space in multiple stages.

An example of a lateral pallet feeding device for such an elevator type multi-level parking device is, for example, Jitsukō Sho 51-2.
As disclosed in Japanese Patent No. 8786, the pallet is provided with wheels that roll on rails arranged in the left-right direction that is the pallet feeding direction in the elevator and the parking space, and a motor-driven chain belt is attached to the elevator. It is well known that a chain belt is provided to pull a pallet to move the pallet on a rail. In addition, instead of a chain belt, there is also one in which a pallet is moved by a linear feed mechanism including a motor and a rack and pinion (see Japanese Utility Model Publication No. 52-7035).

(Problems to be Solved by the Invention) However, of the above-described conventional transverse feeding devices, the former one has a large speed change at the time of starting and stopping the transverse feeding of the pallet, which causes a large impact. Acting,
In order to suppress this impact, the feed speed of the pallet must be lowered, and as a result, there is a problem that the time required for loading and unloading becomes long.

On the other hand, in the latter, in order to speed up the lateral feed while suppressing the impact during the lateral feed of the pallet, the rotation speed of the motor in the linear feed mechanism is controlled, and the pallet feed speed is gradually increased at the start. It is possible to increase or decrease gradually at the time of stop, but in this case, the structure for speed control becomes complicated, the reliability of operation is poor, and the cost becomes high. There is.

The present invention has been made in view of the above points, and an object of the present invention is to increase the pallet feeding speed gradually at the time of starting and gradually decrease at the time of stopping in the above-described pallet transverse feeding device with a mechanical structure. By making such improvements, it is possible to effectively achieve both suppression of impact at the time of lateral feeding of the pallet and speeding up of lateral feeding. Also, in the case where parking spaces are provided on both the left and right sides of the hoistway in the parking structure, the pallet is laterally fed between the elevating platform and the parking spaces on the left and right sides of the hoistway with one traverse device. It is intended to reduce the cost at the same time.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the solution means of the present invention is such that an elevating table is provided so as to be able to move up and down in a parking structure by supporting a pallet on which a vehicle is placed. An elevator type multi-level parking apparatus for laterally feeding the above pallet from a bench to a parking space in a parking structure to park a vehicle in a parking space in the parking structure in multiple stages is as follows.

That is, the pallet has wheels that can roll on rails arranged in the left-right direction in the elevator and the parking space, and grooves that extend in the front-rear direction. Further, a crank arm having an engaging member which is engageable with the groove of the pallet and is slidable along the groove in an engaged state is rotatably provided on the lifting table, and An actuator for rotating the crank arm is provided. Then, with the engagement member engaged with the groove of the pallet, the crank arm is extended from the state in which it is extended in the left-right direction.
The pallet is configured to move between the lift and the parking space by rotating 180 °. Further, parking spaces are provided on both left and right sides of the hoistway in the parking structure, and the crank arm and the actuator are provided so as to be movable in the left-right direction on the elevating table, and either the elevating table or the left or right side is provided. Before moving the pallet to and from the parking space, the pallet is moved to one of the parking spaces.

(Operation) According to the present invention, according to the above configuration, the crank arm extending from the left to right direction in the state in which the engaging member at the tip of the crank arm provided on the lifting table is engaged with the groove of the pallet When rotated by the operation, the engagement member slides along the groove of the pallet with the rotation of the crank arm, and the pallet is pulled by the crank arm via the engagement member.
Wheels of the pallet roll laterally (left and right) by rolling on rails arranged in the elevator and the parking space.

At this time, the moving speed (feeding speed) of the pallet is the speed at which the tip of the crank arm (engaging member) is displaced in the left-right direction, and changes in a sinusoidal shape with the passage of time.
In other words, the feed speed gradually increases at the start of horizontal feed,
Since the feed speed becomes considerably high and the feed speed gradually decreases even when stopped, it is possible to quickly traverse the pallet while suppressing the impact that acts when starting and stopping the traverse as much as possible. You can do it.

Here, the rotation center of the crank arm needs to be offset by a predetermined distance from the center line of the elevator to the parking space side, but in the present invention, parking spaces are provided on the left and right sides of the hoistway in the parking structure. In this case, a crank arm and an actuator are provided so as to be movable in the left-right direction on the lift base, and the crank arm (and the actuator) are moved before the pallet is moved between the lift base and either the left or right parking space. By moving from the center line of the elevator to the parking space side, one crank arm and actuator can be used for lateral feeding of the pallet between the elevator and the left and right parking spaces.

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIGS. 1 to 3 show an elevator type multi-level parking apparatus equipped with a pallet lateral feed apparatus according to a first embodiment of the present invention. In FIG. 3, reference numeral 1 denotes a tower-shaped parking structure that supports a multi-level parking device. In the center of the parking structure 1, a hoistway 3 for raising and lowering a lifting platform 2 is provided, and Parking spaces 4L and 4R for parking vehicles are provided on the left and right sides of the hoistway 3, respectively.

The lifting table 2 has a rectangular shape, and its four corners are suspended by wire ropes 5, 5 ,. The wire ropes 5 are wound around a deflecting wheel 6 provided on the ceiling of the parking structure 1 and a driving wheel 7 connected to a driving motor (not shown), and are also connected to a balance weight 8. In addition, the lifting table 2 is configured to move up and down in the hoistway 3 under the guide of a guide rail (not shown) by the operation of the drive motor.

Further, in the parking spaces 4L, 4R, a plurality of rectangular flat plate-shaped pallets 9, 9, ... On which vehicles are respectively placed are arranged at predetermined intervals in the vertical direction, and these pallets 9, 9 ,. A parking shelf for parking the vehicle in multiple stages is configured. Here, when the vehicle is parked on each pallet 9 of the parking spaces 4L and 4R, first, the pallet 9 is laterally fed from the parking spaces 4L and 4R onto the elevator 2 and then the elevator 2
Descends to the ground, and the vehicle is placed on the pallet 9 at this position. After that, the lifting platform 2 supports the pallet 9 on which the vehicle is placed and rises to the original position, and the pallet 9 is fed laterally from the lifting platform 2 to the parking spaces 4L, 4R.

1 and 2 show the configuration of a lateral feeding device for laterally feeding the pallet 9 between the parking spaces 4L, 4R and the lift 2. That is, a pair of wheels 10 and 10 with a collar is rotatably provided at both the left and right ends of the pallet 9 at the front and rear ends thereof, and the bottom surface of the pallet 9 is provided at a portion on the hoistway 2 side in the front-rear direction. An extending guide groove 11 is formed. At each parking rack position of the parking spaces 4L, 4R, a pair of front and rear rails 12, 12 or 13, 13 extending horizontally in the left-right direction are provided corresponding to the wheels 10, 10 at the front and rear ends of the pallet 9, respectively. A pallet 9 is supported on the rails 12, 12 or 13, 13. Further, a pair of front and rear rails 14 and 14 extending in the left-right direction are provided at both front and rear ends of the lifting platform 2 so as to correspond to the wheels 10 and 10 at the front and rear ends of the pallet 9. As for the rails 14 and 14, the lifting platform 2 has a parking space 4
When located at the height position of the parking rack with L, 4R, it is continuous with the rails 12, 12 and 13, 13 arranged on the parking rack in a straight line,
The wheels 10, ... of the pallet 9 roll on the rails 12,14 (or 13,14) to move the pallet 9 to the parking space 4L or 4
It is provided so as to be movable between the R and the lifting table 2.

Further, the lift base 2 is provided with a common base 22 that moves in the left-right direction across the center line of the lift base 2 by the operation of the cylinders 21, 21, and the common base 22 has front and rear portions thereof, respectively. A pair of crank arms 24a and 24b each having a roller 23 at its tip end is provided rotatably in a horizontal plane, and a two-axis motor 25 for rotating the two crank arms 24a and 24b is provided.

When the pallet 9 is laterally fed between the parking space 4R on the right side of the hoistway 3 and the lifting platform 2, the common base is used.
After moving 22 to the right of the center line of the lift 2 as shown by the solid line in FIG. 1, the rollers 23, 23 at the tips of the crank arms 24a, 24b are engaged with the guide grooves 11 of the pallet 9, respectively. From the state, the crank arms 24a, 24b are rotated 180 ° to laterally feed the pallet 9. Further, when the pallet 9 is laterally fed between the parking space 4L on the left side of the hoistway 3 and the lifting platform 2, the common base 22 is moved from the center line of the lifting platform 2 as shown by the phantom line in FIG. After moving to the left, the crank arms 24a and 24b are similarly rotated to laterally feed the pallet 9.

The front and rear worm reducers 19, 19 provided between the double-shaft motor 25 and the two crank arms 24a, 24b rotated by the double-shaft motor 25 have opposite worm screw directions. The above two crank arms are provided
24a and 24b rotate in mutually opposite directions.

Next, in the first embodiment described above, the operation of laterally feeding the pallet 9 between the lifting platform 2 and the parking spaces 4L, 4R will be described. When the crank arms 24a and 24b come in, both of the crank arms 24a and 24b are in a state in which their tips are retracted to the lift table 2 side.

Then, from this state, when the pallet 9 in the parking space 4R on the right side of the hoistway 3 is laterally fed to the elevator base 2, first, the common base 22 is operated by the operation of the cylinder 21.
As shown by the solid line in FIG. 1, after moving to the right of the center line of the lifting platform 2, the crank arms 24a and 24b are moved by the operation of the two-axis motor 25 so that the leading ends of the crank arms 24a and 24b are in the parking space 4 on the right side of the hoistway 3.
To project to the R side, that is, the front crank arm 24a
Is rotated clockwise, and the rear crank arm 24b is rotated counterclockwise.

When the crank arms 24a, 24b are rotated to the state of extending in the left-right direction as shown by the solid line in FIG. 1, the rollers 23 at the tips of the crank arms 24a, 24b are respectively arranged in the pallet 9 on the parking space 4R side. It engages with the guide groove 11 from its front and rear ends. From this state, crank arms 24a, 24
When b further rotates, the rollers 23, 23 at the tip of the crank arm 24a, 24b slide toward the inner side of the guide groove 11 as the crank arms 24a, 24b rotate, and the pallet 9 moves through the rollers 23, 23. The pallet 9 is pulled by the crank arms 24a, 24b, so that the wheels 10, 10, ... of the pallet 9 roll from the rails 13, 13 on the parking space 4R side to the rails 14, 14 on the lifting platform 2 side. And is laterally fed onto the lift table 2. Then, when the crank arms 24a, 24b rotate 180 ° from the state in which the roller 23 and the guide groove 11 are engaged (that is, when the crank arms 24a, 24b extend in the left-right direction with their tips facing left). Roller 23 and the guide groove
The engagement with 11 is released, and the pallet 9 stops on the lift table 2. The crank arms 24a and 24b rotate to their original positions before the start of rotation and stop.

Therefore, in the case of such lateral feeding of the pallet 9,
The feed rate is the tip of the crank arms 24a, 24b (roller 2
3) is the speed of lateral displacement, which changes sinusoidally with the passage of time. In other words, at the start of transverse feed, the feed speed gradually increases from zero and becomes considerably high, and when it stops, the feed speed gradually decreases and becomes zero. The pallet 9 can be laterally fed quickly while suppressing the above.

Moreover, the change in the lateral feed speed of the pallet 9 is exhibited only with the rotation of the crank arms 24a, 24b each having the roller 23 engaging with the guide groove 11 on the pallet 9 side at the tip thereof. Since it is not necessary to variably control the rotation speeds of the crank arms 24a and 24b, the structure can be simplified correspondingly, the operation reliability can be improved, and the cost can be reduced. It has the effect of being able to

In addition, when the pallet 9 on the lifting platform 2 is laterally fed to the parking space 4R on the right side of the hoistway 3, the pallet 9 described above is used.
Crank arm in the opposite direction to the case where the
By rotating 24a and 24b once, the pallet 9 can be laterally fed to the parking space 4R.

On the other hand, when the pallet 9 is laterally fed between the parking space 4L on the left side of the hoistway 3 and the lifting platform 2, first, the cylinder
The operation of 21 causes the common base 22 to move to the left side of the center line of the elevator 2 as shown by the phantom line in FIG. 1, and then the pallet 9 between the parking space 4R on the right side of the hoistway 3 and the elevator 2. The pallet 9 is laterally fed by rotating the crank arms 24a and 24b in the same manner as in the case of laterally feeding. However, the rotation direction of the crank arms 24a and 24b is completely opposite to that when the pallet 9 is laterally fed between the parking space 4R on the right side of the hoistway 3 and the lifting table 2.

In this way, before the pallet 9 is laterally fed between the lift 2 and the parking spaces 4L, 4R, the common base 22 and thus the crank arms 24a, 24b are moved to the lateral parking space 4L or 4R. This allows one set of crank arms 24a, 24b to be mounted on the lifting table 2 and spaces 4L, 4R on both the left and right sides.
Since the pallet 9 can also be fed laterally between and, the number of parts can be reduced and the cost can be reduced.

4 and 5 show a pallet traverse device according to a second embodiment of the present invention. In the case of this second embodiment,
In the case of the first embodiment, the common base 22 and hence the crank arms 24a and 24b can be appropriately moved without using a special actuator such as the cylinder 21.

That is, in the case of the second embodiment, the common base 31 has the guide roller 32 mounted on the lower surface thereof slidably fitted in the guide groove 33 fixed to the elevating table 2.
It is provided so that it can be moved in the left-right direction under the guide. The radius of gyration of the first crank arms 35a, 35b is rotatably provided at the front and rear of the common base 31 and has a roller 34 at the tip end thereof that can be engaged with the guide groove 11 of the pallet 9. It is set to half the distance between the center line of 2 and the center of the guide groove 11 of the pallet 9 at a predetermined position of the parking spaces 4L, 4R. Further, a rotary shaft 37 connecting the first crank arms 35a, 35b and the worm reducer 36 to each other.
The first crank arm below the worm reducer 36.
Second crank arm 38a, 38b with the same radius of rotation as 35a, 35b
Is mounted 180 degrees out of phase with the first crank arms 35a, 35b, and the second crank arms 38a, 38b are driven by the power from the double-shaft motor 39.
When 35b rotates, it rotates with the first crank arms 35a and 35b. The second crank arm
A roller 40 is rotatably provided at the tip of each of the 38a and 38b, and the roller 40 is slidably fitted in a guide groove 41 arranged in the front-rear direction on the center line of the lift 2.

Then, as shown by the solid line in FIG.
Is located on the right side of the lifting table 2, and the first crank arms 35a and 35b on the common base 31 are respectively provided with the rollers 3 at their tips.
From the state in which 4 is engaged with the front and rear ends of the guide groove 11 of the pallet 9 in the parking space 4R on the right side of the hoistway 3 and extends in the left-right direction, the biaxial motor 39 is actuated to operate the first crank arms 35a, 35b. The second crank arms 38a and 38b, each of which has a common rotary shaft 37, while the front crank arm 35a is rotated clockwise and the rear crank arm 35b is rotated counterclockwise. 1
When rotated in the same direction as the crank arms 35a, 35b of
The common base 31 moves from the right side of the lift 2 to the left side.
Further, the pallet 9 in the parking space 4R is laterally fed onto the lifting table 2 at a speed twice the moving speed of the common base 31. Then, the first and second crank arms 35a, 35b, 38a, 38b are connected to each other as shown by phantom lines in FIG.
These rotations stop when they rotate to nearly 80 °,
The lateral feeding of the pallet 9 from the parking space 4R to the lift 2 is completed.

On the other hand, from the state shown by the solid line in FIG.
When the crank arms 35a, 35b, 38a, 38b of are rotated 180 ° in the opposite direction to the above case, the pallet 9 of the parking space 4R is left in the parking space 4R and the common base 31
Moves to the left side on the elevator 2 and the first crank arm 35
The respective rollers 34 at the tips of a and 35b engage with the front and rear ends of the guide groove 11 of the pallet 9 in the parking space 4L on the left side of the hoistway 3. From this state, crank arms 35a, 35b, 38a, 38b
When is further rotated, the pallet 9 is laterally fed from the parking space 4L to the lift 2.

In the first and second embodiments, the crank arms 24a, 24b or 3 are used to laterally feed the pallet 9 between the lift 2 and the hoistway 3 on either side of the parking spaces 4L or 4R.
The two pallets 5a and 35b are provided on the front and rear sides of the lift table 2 to prevent the pallet 9 from being laterally fed in a state of being inclined with respect to the front-rear direction. When there is almost no gap between the flange portion and the rails 12, 13, 14 and the pallet 9 is less inclined, only one crank arm may be provided.

(Effects of the Invention) As described above, according to the pallet lateral feed device in the elevator type multi-level parking device of the present invention, the pallet is laterally fed by the rotation of the crank arm provided on the elevating table. The pallet feed rate
Since it can be changed in a sinusoidal shape so that it gradually increases at the time of start and gradually decreases at the time of stop, it is possible to achieve both suppression of impact and rapid traverse. In addition, it has a highly practical effect such as high reliability of operation and low cost. In addition, one crank arm and one actuator can be used for lateral feeding of the pallet between the lift and the parking spaces on the left and right sides, and the cost can be further reduced.

[Brief description of drawings]

The drawings show an embodiment of the present invention and are shown in FIGS.
1 shows a first embodiment, FIG. 1 is a plan view showing a configuration of a pallet transverse feed device, and FIG. 2 is a view taken by cutting a part of line AA in FIG. FIG. 3 is a schematic diagram showing the overall configuration of an elevator type multi-level parking device. 4 and 5 show a second embodiment, FIG. 4 is a view corresponding to FIG. 1, and FIG. 5 is a view corresponding to FIG. 1 ... Parking structure 2 ... Elevating platform 3 ... Hoistway 4L, 4R ... Parking space 9 ... Pallet 10 ... Wheels 11 ... Guide groove 12,13, 14 ... Rail 22, 31 ... Common Base 23,24 …… Roller (engaging member) 24a, 24b, 35a, 35b …… Crank arm 25,39 …… Double-axis motor (actuator)

Claims (1)

(57) [Claims] 1. An elevating platform is provided to support a pallet on which a vehicle is placed so as to be movable up and down in a parking structure, and the pallet is laterally fed to a parking space in the parking structure from above the elevating platform. In an elevator type multi-level parking device for parking a vehicle in a multi-stage state in a parking space in a parking structure, the pallet includes wheels that can roll on rails arranged in a left-right direction in a lift and a parking space and a front-back direction. A crank arm having an engaging member that can engage with the groove of the pallet and that can slide along the groove in the engaged state is rotatable on the elevating table. An actuator for rotating the crank arm is provided, and the crank arm is extended in the left-right direction with the engaging member engaged with the groove of the pallet. The pallet is configured to move between the lift and the parking space by rotating it approximately 180 °, and the parking spaces are provided on both left and right sides of the hoistway in the parking structure. The arm and the actuator are provided so as to be movable in the left-right direction on the lifting platform so that they can be moved to the one parking space side before moving the pallet between the lifting platform and one of the left and right parking spaces. A pallet transverse feed device for an elevator-type multi-level parking device, which is characterized in that: