JP3200679B2 - Pallet fall prevention device for multi-stage multilevel parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet fall prevention device for a multi-stage multilevel parking device.

[0002]

2. Description of the Related Art In general, a multi-stage multi-story parking device is provided with a parking frame provided on a base surface through which a vehicle can be taken in and out, and a shelf shape provided on at least one of above and below the parking frame. A parking section that allows the vehicle to be parked in a plurality of vertical stages including the parking frame, at least two columns extending vertically and extending between the parking sections, and at least two columns extending along the columns. A pallet which is provided so as to be able to move up and down, and on which the vehicle can be placed in the parking section, and which moves the pallet up and down by driving a chain or the like with respect to a base surface to take the vehicle in and out of the pallet. While making it possible, the vehicle is parked in a parking frame in a multi-stage manner.

There is also a multi-stage multi-story parking device in which a plurality of parking frames are provided adjacent to each other so as to be adjacent to each other in the left-right direction. The pallets of the adjacent parking frames are prevented from moving up and down at the same time in consideration of, for example, safety when the door is open when getting on or off the vehicle on the pallets.

[0004] These multi-stage multilevel parking devices are usually provided with a pallet fall prevention device for preventing the pallet from falling due to a broken chain or the like. As this pallet fall prevention device, for example, as disclosed in Japanese Patent Application Laid-Open No. 4-89976, a moving device having an engaging portion at the upper end of a support column, which is engaged with a pallet of a parking frame from below when protruding. A free lever is provided, and the engaging portion of the lever is moved into the hoistway of the pallet by the urging force of the spring, whereby the engaging portion of the lever from below can be engaged with the pallet to drop the pallet. There is a known device that prevents such a problem. The lever is configured to move by switching a solenoid valve that excites or demagnetizes the solenoid to flow or shut off pressure oil to a hydraulic actuator or the like. By switching, the engaging portion is moved to a non-engagement position outside the hoistway that does not engage with the pallet, while the solenoid oil is demagnetized to cut off the flow of pressure oil and switch the solenoid valve to switch the engaging portion. It is moved by a spring to an engagement position in the hoistway.

[0005]

[Problems to be solved by the invention] By the way,
There is a tendency that the number of accommodated parking lots is increasing, and the demand for a multi-stage multi-story parking device in which a plurality of the above-described parking frames are adjacent to each other is increasing. In this case, there is a demand for sharing the constituent members between the parking frames of such a multi-stage multilevel parking device as much as possible. Also, as described above, pallets in adjacent parking frames do not normally move up and down at the same time.However, for example, when a parking section is provided in an underground pit, flooding of vehicles in the pit during flooding is prevented. In some emergency situations, the pallets of all the parking frames must be raised and evacuated.

Accordingly, the two levers of both pallet fall prevention devices located between the parking frames are moved to the engaged position and the disengaged position by one solenoid valve, so that the drive source of the levers can be shared. However, when one pallet of one parking frame is raised to the base surface or the parking section and stopped, and one lever is moved to the engagement position, the other lever also moves to the engagement position. ,
If the pallet of the other parking frame has to be lifted in an emergency, the pallet interferes with the engaging portion of the lever and cannot lift the pallet to the base surface or the parking portion. In addition, in the conventional pallet fall prevention device in which the lever is moved by a hydraulic actuator by switching the solenoid valve, a large operating sound peculiar to the solenoid is generated by the hydraulic actuator when the solenoid is excited. Further, in the above-described conventional pallet fall prevention device, since the lever moves vigorously with the excitation or demagnetization of the solenoid, a collision sound peculiar to the solenoid is generated at the engagement position and the non-engagement position of the lever, and this collision sound is generated. A cushioning material is required to suppress the sound.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and an object of the present invention is to use a drive source which can be shared and which can minimize operation noise and collision noise when the lever is moved. By the drive source, the engaging portions of the levers of both pallet fall prevention devices between the respective parking frames are alternately protruded and retracted with respect to the pallets, so that the levers can be used together, while the pallets of one parking frame can be used. The pallet of the other parking frame can be raised when the lever is projected.

[0008]

Means for Solving the Problems In order to achieve the above object, a solution taken by the invention according to claim 1 is as a pallet fall prevention device of a multi-stage multi-story parking device, on a base surface on which a vehicle can be taken in and out. A parking frame provided, a parking unit provided in a shelf shape on at least one of the upper and lower sides of the parking frame, and capable of parking a vehicle in a plurality of vertical stages including the parking frame; At least two right and left columns extending vertically in such a manner as to straddle the vehicle, and a pallet provided so as to be able to move up and down along each of the columns and to allow a vehicle to be placed in the parking portion. A multi-stage multi-story parking device that moves the pallet up and down with respect to the base surface to allow the vehicle to enter and exit the pallet and allows the vehicle to multi-story parking in a parking frame in a multi-stage manner. The above parking frame A plurality of columns are provided so as to be adjacent to each other in the left-right direction, and a column located between the adjacent parking frames of the columns is moved up and down the pallets of the adjacent parking frames along the columns. It is provided so that Further, a lever is provided at the upper end of the support located between the adjacent parking frames, the lever moving to alternately engage the first and second engaging portions from below with the two pallets of the two parking frames. And a motor for moving the lever.
Then, the lever engages the first engagement portion with the pallet of one of the adjacent parking frames and engages the second engagement portion with the pallet of the other parking frame. A first protruding position to be released, and a second protruding position to disengage the first engaging portion with the pallet of the one parking frame and engage the second engaging portion with the pallet of the other parking frame. Protruding
It is configured to be connected to the motor so as to output R>.

The solution taken by the invention according to claim 2 is as follows.
In addition to the constituent features of the first aspect of the invention, the lever is swingably supported at a corresponding position of the support via a shaft, and is connected to a shaft of the motor via a crank mechanism. Further, the connecting point of the crank mechanism to the lever is moved in an arc shape to move the lever to the first and second levers.
A long hole for swinging is provided at a projecting position, and the long hole is formed in a shape that restricts swinging of the lever even when the connection point moves in an arc shape near the first and second projecting positions of the lever. It is what it was.

[0010]

According to the above-mentioned structure, according to the first aspect of the present invention,
When the pallet of one of the adjacent parking frames rises along the support between the adjacent parking frames by driving a chain and stops on the base surface or at the parking section, the pallet of the adjacent parking frame is moved between the adjacent parking frames. A lever provided at an upper end of the first pillar engages the first engaging portion with the pallet from below and releases the second engaging portion with the pallet of the other parking frame. Move to the position by motor. Further, when the pallet of the other parking frame rises along the column between the adjacent parking frames and stops on the base surface or at the parking portion, the lever at the upper end of the column between the adjacent parking frames is moved to the pallet. The first engagement portion is disengaged and the motor is moved by the motor to a second projecting position where the second engagement portion is engaged with the pallet of the other parking frame from below.

With this arrangement, the first engaging portion (or the second engaging portion) of the lever is moved to the first position while the pallet of one parking frame (or the other parking frame) is stopped on the base surface or the parking portion. When the lever is moved to the protruding position (or the second protruding position) and engaged with the pallet, the second engaging portion (or the first engaging portion) of this lever is disengaged from the pallet of the other parking frame. In a state where the first engaging portion of the lever is moved to the first projecting position after stopping at the base surface of the pallet of one parking frame or at the parking portion, or on the base surface of the pallet of the other parking frame or Lifting to the parking portion can be performed without interfering with the lever (second engagement portion).

Moreover, between the adjacent parking frames, it is possible to use the pillars located between the parking frames, the levers of both pallet fall prevention devices, and the motor as the drive source, thereby greatly reducing the number of parts. You.

Further, by moving the lever by a motor, the operating sound of the hydraulic actuator peculiar to the solenoid is not generated at the time of moving the lever, the operating sound at the time of moving the lever is reduced, and the solenoid is operated at the time of moving the lever. No peculiar collision sound is generated, the collision sound itself is reduced, and the cushioning material becomes unnecessary.

According to the second aspect of the present invention, the elongated hole for swinging the lever to the first and second projecting positions is formed by connecting the connecting point of the crank mechanism to the lever near the first and second projecting positions of the lever in an arc shape. Since the lever is formed so as to restrict the swing of the lever even when the lever moves, the driving force of the motor via the crank mechanism from the connection point near the first and second projecting positions of the lever acts on the lever. Therefore, the lever is decelerated in the vicinity of the projecting position, and the lever stops quietly, so that the collision sound at the time of stopping at the projecting position of the lever is effectively reduced.

[0015]

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

FIG. 12 to FIG. 14 show a three-stage multi-story parking device as a multi-stage multi-story parking device provided with a pallet fall prevention device according to an embodiment of the present invention. A parking frame (corresponding to a parking pit described later) provided on the ground X as a base surface through which W can enter and exit, a parking pit P (parking frame) dug down into the parking frame,
In the parking pit P, a vehicle W
Are configured to be able to park, and include three-stage parking sections 2, 3, and 4 including the parking frame, and four left and right and front and rear pillars 5 erected on both front and rear sides of the parking pit P, respectively. 6
And are provided so as to be able to move up and down along each of the columns 5 and 6,
Each of the parking units 2 to 4 has three pallets 7, 8, and 9 on which the vehicle W is individually placed, and the pallets 7 to 9 are sequentially raised and lowered with respect to the ground X. By moving the pallets 7 to 9, the vehicle W can be put in and out of the pallets 7 to 9, and the three vehicles W are parked in three levels in the parking frame. Receiving beams 10, 10 extending in the left-right direction are attached to both front and rear positions of the lower surfaces of the pallets 7 to 9 corresponding to the columns 5, 6, respectively. An entrance / exit port 11 is provided on the ground X.
The three-stage multi-story parking device 1 is configured in a communication state in which three parking pits P are adjacent to each other in the left-right direction so as to be adjacent to each other.

Beams 12 and 13 extending in the front-rear direction at the upper end and substantially the center of the parking pit P are connected to the upper end and substantially the center of each of the struts 5 and 6.
The pallets 7 to 9 are connected by a pair of left and right front frames 14 and 14 and rear frames 15 and 15 extending vertically at both front and rear positions corresponding to the columns 5 and 6. The front and rear struts 5, 6 located between the adjacent parking pits P, P of the struts 5, 6 are adjacent parking pits P, P along both side surfaces of the struts 5, 6.
The pallets 7 to 9 are provided so as to be integrally guided up and down along the columns 5 and 6. 2 and FIG.
As shown in the figure, the front column 5 (the configuration of the rear column is omitted because it has the same configuration), and C-shaped steel members 5a, 5a having a substantially C-shaped cross section are arranged facing each other back to back. A pallet fall prevention device 41 to be described later is arranged between the facing portions.

Further, as shown in FIGS. 7 and 8, each of the receiving beams 10 of the lower pallet 9 has a pair of right and left balance members rotatably supported on horizontal shafts 20 extending in the front-rear direction. Sprockets 21 and 21 are provided, and each of the balance sprockets 21 is wound around a balance chain 23 having one end attached to the lower end of one of the columns 5 and 6 via a joint link 22. The other end of the balance chain 23 is attached to the upper ends of the columns 5 and 6 on the other side via the joint link 22, and has a reference stop position at which the pallets 7 to 9 can enter and leave the pallets 7 to 9 at the parking pit P. The pallets 7 to 9 can be moved up and down while maintaining a horizontal state between the pallets 7 to 9 and a space stop position. Further, a pair of front and rear sprockets 24a, 24a, 2 at the front and rear, respectively, are provided at the upper and lower ends of the pillars 5, 6 on one side of each parking pit 2.
4b is provided. The front and rear sprockets 24a, 24b located at the upper ends of the columns 5, 6 are rotatably connected to an upper horizontal shaft 25 extending in the front-rear direction so as to penetrate the front and rear sprockets 24a, 24b. I have. On the other hand, the front and rear sprockets 24a, 24b located at the lower ends of the columns 5, 6 are rotatably connected to lower horizontal shafts 25a, 25b extending in the front-rear direction, respectively. At one end of each receiving beam 10 of the lower pallet 9, a guide 26 having a hook-shaped engaging claw 26a is protruded to one side, and the engaging claw 26a of each of the front and rear guides 26 is provided. Are engaged with the hoist chains 27, 27 wound between the front sprocket 24a and the rear sprocket 24b, thereby enabling the pallets 7 to 9 to move up and down. On the upper horizontal shaft 25, a pair of front and rear driven sprockets 28, 28 are integrally mounted for rotation. On the beam 12 between the upper ends of the struts 5 and 6, there is provided a forward / reverse rotatable elevating motor 29 in which a pair of front and rear drive sprockets 30 and 30 are integrally mounted on a shaft 29a extending in the front and rear direction. A drive chain 31 is wound around the drive sprocket 30 and the driven sprocket 28.

As shown in FIGS. 1 and 4, when the middle pallet 8 or the lower pallet 9 is at the reference stop position (parking pit P), the pallets 7 to 9 fall. Pallet fall prevention device 4 to prevent
1 is provided. The pallet fall prevention device 41 includes:
A rectangular cross-section receiving seat 42,... Provided at front, rear, left and right positions of the middle and lower pallets 8, 9 corresponding to the above-mentioned respective posts 5, 6, and a post 5 not located between adjacent parking pits P, P. , 6 are pivotally supported via shafts 43 at the upper ends (immediately below the front and rear sprockets 24a, 24b positioned above), and are supported by the receiving seats 42 of the pallets 8, 9 of the parking pit P. The first lever 45 moves so as to engage the engaging portion 44 from below, and the lower ends of the upper ends (directly below the upper sprocket 24a) of the struts 5, 6 located between the adjacent parking pits P, P have lower ends. The two pallets 8 of the parking pits P, P are supported swingably via a shaft 46.
9, a second lever 49 (lever) that moves so as to alternately engage the first and second engagement portions 47 and 48 from below with one of the support columns 5 (6). C
Motors 50,... Which are attached to the V-shaped steel 5a and individually swing the levers 45, 49, respectively.

As shown in FIG. 5, the first lever 45 includes a pair of front and rear first lever members 45a, 45a, and a connecting rod 45b for connecting the first lever members 45a so as to be integrally rotatable. With respect to the front and rear positions of the receiving seat 42 of the middle or lower pallets 8, 9 stopped at the reference stop position, the upper and lower positions of the struts 5, 6 which are not located between the adjacent parking pits P, P are engaged. A protruding position (solid line position shown in FIG. 4) at which the engaging portion 44 is engaged, and a immersion for disengaging the engaging portion 44 with respect to the receiving seat 42 of the middle or lower pallets 8, 9 stopped at the reference stop position. The motor 50 is moved in and out of the position (the position indicated by the two-dot chain line in FIG.
Shaft 50a. On the other hand, as shown in FIG. 3, the second lever 49 includes a pair of front and rear second lever members 49a, 49a, and a connecting rod 49b that connects the second lever members 49a so as to be integrally rotatable. The strut 5, which is located between the adjacent parking pits P, P with respect to the front and rear positions of the receiving seat 42 of the middle or lower pallets 8, 9 stopped at the reference stop position of one of the parking pits P,
A first projecting position in which the first engaging portion 47 is engaged from the upper end of the second pallet 6 and the second engaging portion 48 is disengaged from the receiving seat 42 of the middle or lower pallet 8, 9 of the other parking portion 2 (FIG. 1) and the middle or lower pallets 8, 9 stopped at the reference stop position of one of the parking pits P from the upper ends of the columns 5, 6 located between the adjacent parking pits P, P. The second engagement portion 48 is disengaged from the seat 42 and the second engagement portion 48 is engaged with the front and rear positions of the receiving seat 42 of the middle or lower pallets 8, 9 of the other parking pit P. The motor 50 is connected to the shaft 50a so as to protrude from the protruding position (the position indicated by the two-dot chain line in FIG. 1).

The shaft 50a of each of the motors 50 is eccentric upward through a gear (not shown) with respect to the center line m of the motor 50 so that the rotation speed of the shaft 50a is reduced by the gear. ing. The shaft 50 of each of the motors 50
The center of a disk-shaped ring member 51 is rotatably connected to the distal end, and the base end of a rod-shaped arm 52 protruding toward the non-motor side is provided on the outer edge of the ring member 51 opposite to the motor side. The ring member 51 and the arm 52 constitute a crank mechanism 53. Further, the first lever member 45a located on the motor 50 side of each of the first levers 45 is provided with a long hole 54 extending substantially in the vertical direction at the position where the lever 45 is immersed. Further, the second lever member 49a located on the motor 50 side of each of the second levers 49 is provided with a long hole 54 extending substantially in the vertical direction at the center thereof. A distal end M of an arm 52 as a connection point of the crank mechanism 53 to each of the levers 45 and 49 is slidably inserted into each of the long holes 54 in a loosely fitted state. The first lever 45 is swung between the protruding position and the retracted position by moving the second lever 49 between the two protruding positions by moving the first lever 45 between the protruding positions and the immersing position by moving the first lever 45 in an arc shape with the rotation of. In this case, the long hole 54 of the first lever 45 (the first lever member 45a) substantially matches the arc-shaped trajectory of the tip M of the arm 52 near the retracted position and the protruded position of the first lever 45, and the arc-shaped trajectory. Is substantially the same as the tangential direction of the first lever 45, so that the swing of the first lever 45 is restricted even if the tip M of the arm 52 moves in an arc shape. The second lever 49 (the second lever member 4)
9a) The elongated hole 54 substantially matches the arc-shaped trajectory of the tip M of the arm 52 near each projecting position of the second lever 49 and is almost the same as the tangential direction of the arc-shaped trajectory. Swings the second lever 49 even if the.

At the upper ends of the columns 5, 6, stoppers 61,... With which the lower surfaces of the levers 45, 49 abut at the respective projecting positions, are provided. Further, limit switches 62, 62 for detecting the swinging of the first lever 45 to the projecting position and the retracted position, respectively, are provided at the upper ends of the columns 5, 6 which are not located between the adjacent parking pits P, P. On the other hand, limit switches for detecting the swing of the second lever 49 to the first and second projecting positions are provided at the upper ends of the columns 5, 6 located between the adjacent parking pits P, P, respectively. 63, 63 are provided.

Next, the operation of each of the levers 45 and 49 will be described with reference to FIGS.

First, as shown in FIG. 9, when both the upper pallets 7 of the adjacent parking frame pits P, P are stopped at the ground X (reference stop position), the adjacent parking pits P, P
First lever 4 provided at the upper end of columns 5 and 6 not located between
5 is rotated about the shaft 50a of the motor 50 to the immersion position and is immersed, while the second lever 49 provided at the upper end of the struts 5 and 6 located between the adjacent parking pits P and P is Second
The motor 50 rotates around the shaft 50a to the projecting position and projects.

As shown in FIG. 10, the middle pallet 8 of one of the parking pits P (on the left side in the figure) rises along the columns 5 and 6 by driving the hoisting chain 27, and moves up the ground X (reference stop position). ), The first lever 45 is
The shaft 50a of the motor 50 is moved from below to the projecting position where the engaging portion 44 is engaged with each receiving seat 42 of the middle pallet 8.
While rotating around and protruding, the second lever 49
The first engaging portion 4 is provided for each receiving seat 42 of the middle pallet 8.
7 from below and rotate around the shaft 50a of the motor 50 to a first protruding position at which the second engaging portion 48 is disengaged from the receiving seats 42 of the middle pallet 8 of the other parking pit P. Protrude. At this time, the second lever 49
The engaging portion 48 is disengaged from the seats 42 of the middle or lower pallets 8 and 9 of the other parking pit P (on the right in the drawing), and is in an emergency state in case of emergency such as flood countermeasure. The middle and lower pallets 8, 9 of the other parking pit P can be moved up and down to the ground X without interfering with the second lever 49.

On the other hand, as shown in FIG. 11, when the middle pallet 8 of the other parking pit P rises along each of the columns 5 and 6 and stops on the ground X, the first lever 45 is moved to the middle or lower one of the ones. The shaft 5 of the motor 50 is moved to a retracted position at which the engagement of the engaging portion 44 with the receiving seats 42 of the pallets 8 and 9 is released.
0a, and the second lever 49
Is the middle or lower pallet 8 of one parking pit P,
9 is disengaged from the first engaging portion 47 with each of the receiving seats 42, and the second engaging portion 48 is engaged with each of the receiving seats 42 on the middle and lower pallets 8, 9 of the other parking pit P. By rotating and protruding around the shaft 50a of the motor 50 to the second protruding position, in case of emergency such as countermeasures against flooding during a flood,
The middle and lower pallets 8, 9 of one parking pit P can be moved upward to the ground X without interfering with the first lever 45 and the second lever 49.

Thus, the engaging portion 44 of the first lever 45 projects to the projecting position while the middle or lower pallets 8, 9 of one parking pit P are stopped on the ground X, and the second lever 49 When the first engaging portion 47 is protruded to the first projecting position and engages with the receiving seats 42 of the middle or lower pallets 8 and 9, the second engaging portion 4 of the second lever 49 is engaged.
8 is the middle or lower pallet 8 of the other parking pit P,
9 is disengaged from the receiving seat 42 of the second lever 49, and the first engaging portion 47 of the second lever 49 is moved to the first position after the middle or lower pallets 8, 9 of one parking pit P are stopped on the ground X. The other parking pit P is projected to the projecting position.
Of the middle or lower pallets 8, 9 to the ground X can be performed without interfering with the second lever 49 (second engaging portion 48).

Further, between the adjacent parking pits P, P
The posts 5, 6 located between the parking pits P, the second lever 49 of the pallet fall prevention device 41, and the motor 50 as a drive source can be shared, and the number of these components can be greatly reduced. That is, the number of N × 4 parts required for N rows of parking pits that are not shared is changed to 4 + 2 × (N
-1) The number of parts can be reduced.

Further, the first and second levers 45, 45
By driving the motors 49 by the motors 50, the operating sound and the collision sound peculiar to the solenoid are not generated when the levers 45 and 49 are moved. Materials can be made unnecessary. The long hole 54 of the first lever 45 is
The arm 5 of the crank mechanism 53 with respect to the first lever 45 near the retracted position and the protruded position of the first lever 45
The second lever 49 has a shape substantially matching the arc-shaped trajectory of the tip M of the arm 52 so as to restrict the swing of the first lever 45 even if the tip M of the second lever 49 moves in an arc shape. The long hole 54 has an arm that restricts the swing of the second lever 49 even when the tip M of the arm 52 of the crank mechanism 53 moves in an arc shape with respect to the lever 49 near each projecting position of the second lever 49. 52 is formed in a shape substantially coinciding with the arc-shaped trajectory of the tip M of the arm 52, so that at least the tip M of the arm 52 near the projecting position of both levers 45 and 49.
The driving force of the motor 50 via the crank mechanism 53 does not act on the levers 45 and 49, and the levers 45 and 49 are decelerated near the protruding position and
5 and 49 are stopped quietly, the collision noise at the time of stopping at the projecting position of both levers 45 and 49 can be effectively reduced, and the first lever 45 is also stopped quietly near the immersion position. It is also possible to effectively reduce the collision noise when the lever 45 stops at the projecting position.

It should be noted that the present invention is not limited to the above-described embodiment, but includes various other modifications.
For example, in the above embodiment, the parking units 2 to 5 are connected to the parking pit P
The parking pit is used as a parking section, and only a single pallet for this parking section can be moved up and down with the upper parking section. In this case, each lever of the pallet fall prevention device causes the engaging portion to protrude with respect to the pallet which rises along each column and stops at the upper stop position. It is configured as follows.

Further, in the above embodiment, the parking units 2 to 4 are configured in three stages, upper and lower, but may be configured in two or four stages. Further, in the above embodiment, the adjacent parking pits P are three rows, but the adjacent parking pits P may be two rows or four or more rows. Moreover, in the above embodiment,
Although the first lever 45 is provided at the upper ends of the posts 5, 6 not located between the adjacent parking pits P, P, the second lever is provided at the upper end of the posts not located between the adjacent parking pits. In this case, the lever can be shared.
In the above embodiment, each lever 45, 49 is rocked by an individual motor 50. However, the shaft of the motor is extended back and forth so that the front and rear levers can be rocked by a single motor. In this case, the number of motors can be reduced to half by sharing the motors at the front and rear.

Further, in the above embodiment, each parking pit P
Lifting and lowering drive means (front and rear sprockets 24a and 24b, guide 26, hoisting chain 27, driven sprocket 28) for allowing the pallets 7 to 9 to move up and down for each of the parking pits P , Lifting motor 29,
The drive sprocket 30 and the drive chain 31) are provided, respectively, but the lifting / lowering drive means of the parking pit on one side is eliminated, and the other side end of the lower pallet of the parking pit on one side and the lower pallet on the center of the parking pit are removed. At one end of the center parking pit, guides having engagement claws alternately engaged with the hoisting chain of the lifting / lowering drive means of the central parking pit for each side or the central parking pit are provided. Each pallet of the adjacent parking pit may be configured to move up and down only by the pit lifting drive means.In this case, for example, first, the engaging claw portion of one side of the parking pit is attached to the winding chain. The lower pallet of the one side parking pit is lifted to the ground by engaging the first pallet, and the respective pallets of the one side parking pit are engaged by engaging the respective receiving seats of the lower pallet with the first and second levers. Then, the engaging pawl of the central parking pit is engaged with the hoisting chain to raise the lower pallet of the central parking pit to the ground, and each pallet of the central parking pit is prevented. Can be held by the braking action of the rotating motor of the ascending / descending motor when ascending against the weight of each of the pallets. In the parking pits in the odd-numbered rows, the number of lifting / lowering driving means is effectively reduced to half the number of the parking pits and half of the parking pits in the odd-numbered rows.

[0033]

As described above, according to the pallet fall prevention device of the multi-stage multi-story parking device according to the first aspect of the present invention, the pallet of one of the adjacent parking frames is raised and the base surface is raised. Alternatively, when the first engaging portion of the lever is protruded to the first protruding position by the motor after stopping at the parking portion, the second lever of the lever with respect to the pallet of the other parking frame is
Since the engagement of the engaging portion is released, the pallet of the other parking frame is caused to interfere with the lever up to the base surface or the parking portion after the pallet of one parking frame is engaged by the lever at the base surface or the parking portion after the pallet is raised. Can be lifted without. Moreover,
The strut, lever and motor can also be used between adjacent parking frames to greatly reduce the number of parts, and the lever is driven by a motor to reduce operating noise and collision noise and eliminate the need for cushioning material. Can be.

According to the pallet fall prevention device of the multi-stage multilevel parking device according to the second aspect of the invention, the connecting point of the crank mechanism to the lever is swung at least in the vicinity of the lever projecting position in the elongated hole. The lever is not moved by the motor in the vicinity of the projecting position of the lever, thereby reducing the swing of the lever and effectively reducing the collision sound at the time of stopping at the projecting position of the lever. it can.

[Brief description of the drawings]

FIG. 1 is a front view of a second lever according to an embodiment of the present invention.

FIG. 2 is a plan view of a second lever.

FIG. 3 is a side view of a second lever.

FIG. 4 is a front view of a first lever.

FIG. 5 is a plan view of a first lever.

FIG. 6 is a side view of the first lever member.

FIG. 7 is a front view of one parking pit.

FIG. 8 is a view of a three-stage multi-story parking device hooked on a chain;

FIG. 9 is a diagram illustrating the operation of each lever when the upper pallets of both parking pits are stopped on the ground.

FIG. 10 is an operation explanatory view of each lever in a state where a middle pallet of one parking pit is stopped on the ground.

FIG. 11 is a diagram illustrating the operation of each lever when the middle pallet of one parking pit is raised and lowered with respect to the ground.

FIG. 12 is a front view of a three-stage multilevel parking device.

FIG. 13 is a plan view of a three-stage multilevel parking device.

FIG. 14 is a side view of the three-stage multilevel parking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-stage multilevel parking device (multilevel multilevel parking device) 2-4 Parking part (parking frame) 5,6 Prop 7-9 Pallet 41 Pallet fall prevention device 47 1st engagement part 48 2nd engagement part 49th 2 lever (lever) 50 motor 53 crank mechanism 54 long hole M tip of arm (connection point) P parking pit (parking frame) W vehicle X ground (base surface)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04H 6/06 E04H 6/12 E04H 6/42

Claims (2)

(57) [Claims] 1. A parking frame provided on a base surface from which a vehicle can be taken in and out, and a plurality of vertical stages including a parking frame provided on at least one of an upper side and a lower side of the parking frame and including the parking frame. A parking portion that can park the vehicle, at least two right and left columns that are vertically extended so as to straddle between the parking portions, and that are provided so as to be able to move up and down along each column; A pallet on which a vehicle can be placed in the parking section, and the pallet can be moved up and down with respect to the base surface so that the vehicle can be taken in and out of the pallet, and the vehicle can be mounted on the parking frame in a three-dimensional manner. In the multi-stage type multi-story parking device adapted to be parked, the parking frames are provided adjacent to each other in the left-right direction so as to be adjacent to each other, and between the adjacent parking frames of the struts. The strut located is the strut Along the upper pallet between the adjacent parking frames, the pallets of the adjacent parking frames are provided to move up and down the pallets of the adjacent parking frames. 1st and 2nd
A lever is provided for moving the engaging portions so as to alternately engage with each other, and a motor for moving the lever is provided. The lever is provided for one of the adjacent parking frames. A first engagement portion that engages the first engagement portion with the pallet of the other and releases the engagement of the second engagement portion with the pallet of the other parking frame.
A projecting position and a first position of the one parking frame with respect to the pallet;
The motor is coupled to the motor so as to disengage the engagement portion and to project to a second projecting position where the second engagement portion engages with the pallet of the other parking frame. Pallet fall prevention device of the multi-stage type multi-story parking device. 2. The lever is swingably supported on an upper end of each of the columns via a shaft, and is connected to a shaft of the motor via a crank mechanism. An elongated hole is provided for moving the connecting point of the crank mechanism to the lever in an arc shape to swing the lever to the first and second projecting positions, and the elongated hole is provided near the first and second projecting positions of the lever. 2. The pallet fall prevention device for a multi-stage multi-story parking device according to claim 1, wherein the connection point is formed in a shape that restricts swinging of the lever even when the connection point moves in an arc shape.