JPH11131843A - Multistage type multistory parking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the tangling or damage of a chain by providing three or more engaging projections on the lifting roller chain of a multiple row pit type multistory parking device, so that the chain is prevented from coming in contact with the other member when it is loosened to the maximum. SOLUTION: Pallet lifting units 2, 3 for placing automobiles are driven by a geared motor through a roller chain 19 or a sprocket. Three or more engaging projections 29a, 29b, 29c are provided at prescribed intervals in the longitudinal middle of the roller chain 19, and engaged with a bearing member 26. Each engaging projection is formed by extending the connecting pin of the chain. When the roller chain 19 is loosened to the maximum in the simultaneous rising of both the pallets 2, 3 because of a flood, the engaging projections 29a, 29b, 29c are engaged with the bearing member 26 to bend the chain 19, so that a suspended part 31 does not touch the floor surface, or the chains never make contact to each other. Thus, the tangling damage of the chain can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-stage multi-story parking device, and more particularly to a multi-stage multi-story parking device. The present invention relates to a so-called pit-type multi-level multilevel parking device that stores a plurality of rows of pallets in a horizontal direction.

[0002]

2. Description of the Related Art An example of the configuration of a conventional pit-type multi-level multi-story parking device is disclosed in Japanese Patent Application Laid-Open No. 63-44080. The configuration of the multi-stage multi-story parking device disclosed in the publication will be described below with reference to FIGS.

In this conventional pit-type multi-level multi-story parking device, as shown in FIGS. 11 and 12, upper and lower pallets 102a, 102b, 103a,
Two pallet lifting bodies 102 and 103 having 103b
Are provided adjacent to each other in the lateral direction so as to be accommodated in the pit 101. 11 and 12, only one pallet elevating body 102 rises until the lower pallet 102b comes to the position of the ground surface 101a, and the other pallet elevating body 103 is entirely stored in the pit 101. It shows the state where it was turned on. The pallets 102a and 102b constituting the pallet elevating body 102 are framed by a frame member 102d to form pallets 103a and 103 constituting the pallet elevating body 103.
b are integrally connected by the frame member 103d. At the boundary between the two pallet lifters 102 and 103, a guide member 104 is provided vertically and fixed to the pit 101, and guide members 105 and 106 are fixed to the side wall of the pit 101. Along the guide members 104, 105, 106 of the pallet lifter 1
02 and 103 move up and down.

[0004] A pillar 108 is provided upright in the vicinity of the guide member 104, and a geared motor 111 and a sprocket 114 are mounted near the upper portion of the pillar 108. The power of the geared motor 111 is transmitted to a sprocket 114 via a drive shaft 112 and a reduction transmission 113. A roller chain 119 is wound around the sprocket 114. Then, a traction force is generated in the roller chain 119 by the rotation drive of the sprocket 114, and thereby, the two pallet elevating bodies 102, 1
03 is driven up and down. The roller chain 119 has both ends fixed near the upper end of the guide member 104 and, as shown in FIG. 13, pulleys 116 and 117 mounted on the upper side of the sprocket 114 and the lower ends of the side portions of the pallet elevating bodies 102 and 103, respectively. And the pulleys 116 and 117 function as moving pulleys due to the pulling force of the chain 119 due to the rotation of the sprocket 114.

When a vehicle is put in or taken out of a pallet 102b below one pallet elevating body 102, the state shown in FIGS. 11 and 12 is set, that is, the whole of the other pallet elevating body 103 is put in the pit 101. In the state where the pallet 102b is stored, the pallet 102b
Only the pallet elevating body 102 is raised to the same level as a. The lifting drive of the pallet lifting body 102 is performed by the pulling force of the roller chain 119 by rotating the sprocket 114 counterclockwise in FIG. When the vehicle is taken in and out of the pallet 103b below the other pallet elevating body 103, the sprocket 114 is rotated clockwise in FIG. 11 until the pallet elevating body 102 is completely stored in the pit 101. After lowering the sprocket 11
The pallet lifting body 103 is raised by the pulling force of the roller chain 119 by rotating the pallet 4 clockwise in FIG. 11 until the pallet 103b is at the same level as the ground surface 101a. As described above, the lifting operation of the pallet elevating bodies 102 and 103 in the normal use mode as the multi-story parking lot is such that at least one of the two pallet elevating bodies 102 and 103 is entirely stored in the pit 101. This is done by raising the other, while in the upright position.

[0006] By the way, in a flood or the like, the pit 101
In an emergency where water accumulates inside the pallet, the evacuation operation is different from the normal use state described above, and the two pallet elevating bodies 1
It is necessary to raise both 02 and 103 and raise both pallets 102b and 103b below them to the same level as the ground surface 101a. When shifting from the state where both of the two pallet elevating bodies 102 and 103 are entirely stored in the pit 101 to such an evacuation state, the sprocket 114 is rotated by the rotation drive of the geared motor 111, The pallet lift 102 is pulled up to the state shown in FIG.
Then, the sprocket 114 is further rotated clockwise by clockwise rotation of the geared motor 111, and the pallet 103b is brought to the same level as the ground surface 101a by the pulling force of the roller chain 119. Pallet lift 103
To rise.

The details of the operation of the chain 119 during the elevating operation of the above-described conventional multi-stage multi-story parking device will be described as follows with reference to FIGS.

As shown in FIGS. 13 and 14, a U-shaped support member 121 is fixed to the upper ends 104a and 104b of the guide member 104 near the sprocket 114. Are provided so as to be located in a U-shaped closed section surrounded by the support member 121. The engagement projections 129 (see FIG. 16) formed by extending the pins on both sides of the roller chain 119 are provided. I have. The state shown in FIG. 13, that is, both of the two pallet lifters 102 and 103
In the state where the roller chain 119 is housed in the roller chain 119, the engagement protrusion 129 provided substantially at the center of the roller chain 119 is located near the upper end of the sprocket 114.

When the sprocket 114 starts rotating by the rotation of the geared motor 111, the sprocket 1
The engagement protrusion 129 also starts to move in accordance with the rotation of the outer periphery of 14. Thereafter, the engagement protrusion 129 is separated from the outer periphery of the sprocket 114, and slides while abutting on the bottom of the support member 121, so that the engagement protrusion 129 is locked at substantially the center of the bottom of the support member 121. At the position, the portion other than the portion where the engagement protrusion 129 of the roller chain 119 is provided hangs down from the bottom of the support member 121 to the outside of the U-shaped closed section in a relaxed state, and becomes a state shown in FIGS. 15 and 16.

When one of the pallet lifters 102 rises by a length S1 from the position shown in FIG.
FIG. 14 shows a state where b is located at the same level as the ground surface 101a. In this state, the roller chain 119
Will hang down by S2, which is approximately the same length as S1.

[0011]

However, the multi-stage multi-story parking device having the above configuration has the following problems.

In the above-mentioned multi-stage multi-story parking device, the support member is a U-shaped section, and the engaging protrusion cannot enter the inside from the outside, and two or more engaging protrusions are installed. Also, since the engaging projections outside the U-shaped section are blocked by the U-shaped section and cannot enter the inside, only one engaging projection is provided on the roller chain. Number of engaging projections is 1
Therefore, only one hanging of the roller chain can be formed. Therefore, roller chain
The hanging length per one wheel is almost equal to the length from the pulley to the sprocket of the pallet hoist. As a result, there is a high possibility that the roller chain swings greatly during the operation of the pallet elevating body, and there is a high possibility that the roller chain is entangled or the roller chain is damaged due to the contact between the roller chain and the pulley. Become. This allows
In some cases, the function as a multi-stage multi-story parking device was hindered.

Further, when an evacuation operation is performed during a flood or the like, the length of the above-mentioned roller chain is twice as long as that during the normal operation, and reaches the bottom of the pit. As a result, the possibility of damage due to entanglement between the roller chains and contact between the roller chains and the pits is further increased.

The present invention has been made in order to solve these problems. When one of the pallet lifting members is raised to the highest position during normal operation, and when evacuation operation is performed in a flood or the like, It is an object of the present invention to provide a multi-stage type multi-story parking device that prevents entanglement and damage of roller chains due to contact between roller chains or between roller chains and pits, pulleys, and guide members, and that has high operation reliability.

[0015]

According to a first aspect of the present invention, there is provided a multi-stage multi-story parking device comprising: a pit constituting an underground space for parking a car; With two or more pallets each arranged so as to have a car storage part,
First and second pallet elevating members which are separately arranged adjacent to each other so as to be vertically movable, and guide means which is fixed to the pit and guides the first and second pallet elevating members to move vertically. It has. Further, the apparatus is provided with an elevating drive means for individually moving the first and second pallet elevating bodies up and down.

Further, the lifting drive means has a rotation center axis fixed in the horizontal direction with respect to the pit near the road surface at the boundary between the first and second pallet lifting bodies.
A sprocket rotated by a rotation driving means;
First and second pulleys each having a rotation center axis fixed to the lower end of the second pallet elevating body, and one end fixed to the pit near the road surface on the first pallet elevating body side, and the other end thereof Is fixed to the pit in the vicinity of the road surface on the side of the second pallet elevating body, and is wrapped around the upper part of the outer periphery of the sprocket in the middle without causing slippage, and is wound around the upper part of the outer periphery of the sprocket in the middle part. Roller chain for respectively moving the first and second pallet lifting members up and down in accordance with the rotation of the sprocket by being wound around the first and second pulleys between the first and second ends, respectively. And first support means provided near the rotating member and suspending and holding the relaxed traction member.

Further, the roller chain has engagement projections at three or more predetermined positions between one end and the other end thereof, and the first support means comprises first and second pallet lifting members. When one of the pallet elevating members moves up and down while the other pallet elevating member is housed in the pit, the engaging projection of the relaxed roller chain on the one pallet elevating member side of the rotating member. And a mechanism for suspending the roller chain in a relaxed state.

With the above structure, since the roller chain has three or more engagement projections, each of the engagement projections is engaged by the first support means, and
Since the above-mentioned sag is formed, the length of one roller chain forming the sag from one engagement projection to the next engagement projection is reduced. As a result, it is possible to reduce the contact between the roller chains or the contact between the roller chain and the pulley and the guide member, and to provide a multi-stage type multi-story parking device with a low possibility of entanglement or damage and high operation reliability. it can.

According to a second aspect of the present invention, in addition to the mechanism described in the first aspect, in addition to the mechanism according to the first aspect, the lowermost pallet of the first pallet elevator is provided on the lower surface of the first pallet elevator. When the second pallet elevating body is moved upward while the vehicle is at the road surface position, the engaging projection of the loosened roller chain on the first pallet elevating body side with respect to the sprocket is locked, and the loosened roller chain is engaged. To suspend the second
Is further provided.

With the above structure, even in an evacuation operation in which the first pallet elevating body is raised to the highest position while the second pallet elevating body is raised to the highest position during a flood or the like. The second support means is 3
Two or more chains can be formed to be suspended by the above-described engaging projections, and the possibility of contact between the chains and between the chains and the pits, pulleys and guide members is reduced. As a result, it is possible to provide a multi-stage multi-story parking device that has a low possibility of chain entanglement and damage even during a flood evacuation operation and has a high degree of certainty in operation.

[0021] In the multi-stage multilevel parking device according to a third aspect of the present invention, the engagement projection is formed by an extension pin that extends laterally from a rotation center pin of a roller constituting the roller chain. With such a configuration, the number of parts can be reduced, and the shape of the engagement projection is simple, so that the formation is easy. As a result, the extension pins can shorten the manufacturing period of the roller chain and provide an inexpensive roller chain.

In the multi-stage multi-story parking device according to a fourth aspect of the present invention, the first support means is provided so as to be independently rotatable in the vicinity of the sprocket.
A first support member having a locking portion for locking the engagement protrusion of the roller chain at a predetermined rotation angle, wherein the first support member has a first pallet elevating body accommodated in the pit; Only when it is at the lowermost position of the retracted state, the engagement protrusion is locked to maintain the rotation angle position for suspending the roller chain, and the first pallet lifter is at a position other than the lowermost position. Has a mechanism for retracting to a rotation angle position where the engaging projection is not locked.

The second bearing member of the first bearing means is suspended from the sprocket toward the second pallet lifting member only when the second pallet lifting member is at the lowest position in a state of being stored in the pit. The engaging protrusion of the roller chain is locked to maintain the rotation angle position for suspending the roller chain, and the engaging protrusion is not locked when the second pallet lifting / lowering body is at a position other than the lowermost position. It has the function of retracting to the rotation angle position.

By adopting such a structure, the first
The first support member of the support means locks the engaging projection of the roller chain when the first pallet elevating member is at the lowest position, and when the first pallet elevating member is at the lowest position. Other than the above, the engaging protrusion of the roller chain is not locked. Further, the second support member of the first support means includes a second pallet elevating body,
When it is at the lowermost position, the engagement protrusion of the roller chain is locked, and the engagement protrusion of the roller chain is not locked except when the second pallet lifter is at the lowermost position.

Further, the first support member and the second support member can be configured such that the support member on the side on which the first and second pallet lifting / lowering members are operated does not inhibit the movement of the engagement projection. The engagement projections sequentially sent to the side where no operation is performed can be locked. Thereby, the two pallet elevating bodies can be individually operated by one driving device and roller chain, and the number of hanging of the roller chain can be made two or more. As a result, the number of drive units and roller chains can be reduced, which is economical, and even during flood evacuation operations, etc., entanglement between roller chains, contact between roller chains and pits, pulleys and guide members, The possibility of damage can be reduced.

According to a fifth aspect of the present invention, there is provided a multi-stage multi-story parking device, wherein the second support means is rotatable around a rotation center fixed to the lower surface of the first pallet elevating body. 1
A third supporting member having a predetermined length, which is urged so as to abut against the lower surface of the pallet elevating body and is provided with a locking portion for locking the engaging projection of the roller chain at a tip thereof; ing.

Further, when the lower pallet of the first pallet elevating body is moved upward while the second pallet elevating body is at the position on the road surface, the sprockets are used to rotate the roller chain wound around the first pallet elevating body toward the first pallet elevating body. The roller chain is suspended on the third support member in a state where the engagement protrusion is retained by the retaining portion, and the third support member is moved to the lower surface of the first pallet elevating body by the weight of the suspended roller chain. Has a structure that rotates downward against the urging force.

With such a configuration, in a state where the second pallet elevating body stops at the highest position and the descent preventing means prevents the second pallet elevating body from descending, the second support means is By rotating the geared motor counterclockwise in FIG. 3, the engagement projections of the chains sequentially sent out are locked, and two or more hanging chains can be formed.

As a result, it is possible to reduce the possibility of tangling of the roller chains and damage due to the contact between the roller chains and the pits, pulleys and guide members, and it is highly reliable even during a flood evacuation operation or the like. A multi-stage multi-story parking device that performs a driving operation can be provided.

In the multi-stage multi-story parking device according to the present invention, the guide means reduces the traction force of the roller chain when the lowermost pallet of the first or second pallet elevating body is at the road surface position. Includes descent-preventing means for preventing descent after removal.

With this configuration, the descent preventing means fixes the pallets at substantially the same height as the vehicle road surface and stops the first and second pallet elevating bodies when the vehicle is taken in and out. it can. As a result, when the vehicle is stored, even if the roller chain is cut, the descent is prevented by the descent prevention means, which is safe. Also, during the flood evacuation operation, the gears are kept fixed with the first pallet lifting body at the highest position by the descent prevention means.
Even if the motor is rotated to reduce the pulling force of the chain, the first pallet lifter can raise the second pallet lifter without descending. This makes it possible to stop both pallet lifters at the highest position at the same time, and to prevent the automobile from being submerged.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

In the multi-stage multi-story parking device according to this embodiment, as shown in FIGS. 1 to 4, a pit 1 as a vehicle storage space formed from a road surface 1a through which a vehicle enters and exits to a predetermined depth. A first pallet lift 2 in which upper, middle and lower pallets 2a, 2b and 2c, a frame 2d and a beam 2e are integrated, and an upper, middle and lower pallet 3
a, 3b, 3c, a frame 3d and a beam 3e
Pallet elevating bodies 3 are arranged side by side in the horizontal direction. Beam 3
e, 2e, first pulleys 15, 15, 1
6, 16 and the second pulleys 17, 17, 18, 18 are rotatably installed. The first and second pallet lifting members 2 and 3 are provided with guide members 5 fixed to the side walls of the pit 1.
6 are arranged so as to be vertically movable. A pair of pillars 8, 8 are erected from the bottom 1 b of the pit 1 at the front and rear positions in the center as viewed from the front of the pit 1.
4, 14 are installed rotatably. The first and second pallet elevating members 2, 3 are provided before and after the first and second pallet elevating members 2, 3 which are wound around the sprockets 14, 14 and generate a traction force by their rotational driving. This is performed via the two roller chains 19, 19 provided. One end of each of the roller chains 19, 19 is fixed to the vicinity 6a of the upper part of the guide member 6, and the roller chains 19, 19 are fixed to the vicinity 5a of the upper part of the guide member 5.
Are fixed at the other end. Further, the roller chain 19 includes the sprocket 14, the first pulleys 15, 1
6, wound around the second pulleys 17, 18 and not shown, but the sprocket 14, the first pulleys 15, 16 and the second
The pulleys 17 and 18 are provided with a holding plate.

FIG. 2 shows a state in which both the first and second pallet lifting bodies 2 and 3 are entirely stored in the pit 1. From this state, for example, when the vehicle is taken in and out of the pallet 3c at the lowermost stage of the second pallet elevator 3, only the second pallet elevator 3 is raised to the maximum, that is, the pallet 3c is placed on the road surface 1a. It is necessary to raise the state to the state shown in FIG. In the state shown in FIG. 3, the first pallet elevating body 2 is maintained at the lowest position, that is, in a state in which the whole is housed in the pit 1.

When there is a possibility that the inside of the pit 1 will be flooded during a flood or the like, both the first and second pallet lifting members 2 and 3 are most fully moved so as to prevent the stored automobile from being immersed in the water. It is necessary to perform an evacuation operation to raise the vehicle to a raised state. FIG. 4 shows a state in which such an evacuation operation has been performed, in which the first pallet lifting body 2 and the second pallet lifting body 3 are both stopped at the highest position.

In the vicinity of the upper part of the column 8, as shown in FIG.
Geared motor 1 is mounted on bracket 8a protruding from column 8.
A drive shaft 9 for transmitting the power of the geared motor 11 is rotatably provided thereon. A large sprocket 10 is provided behind the drive shaft 9, and the driving force of the geared motor 11 is transmitted to the drive shaft 9 via a roller chain 13 provided between the small sprocket 12 and the large sprocket 10. This drive shaft 9
The sprocket 14 attached to is rotated.

During normal operation other than the evacuation operation such as a flood, the mechanism near the sprocket 14 and its operation when raising the second pallet lifting body 3 from the state of FIG. 2 to the state of FIG. This is explained as follows with reference to FIG. Immediately below the upper sprocket 14 of each of the pair of columns 8, 8, a pair of rotation center shafts 20 a, 20 b
There are provided first and second support members 21a and 21b as first support means of the present invention, which are rotatably mounted on the first and second support members. First and second bearing members 21a, 21b
Is formed by integrating two plate-shaped members with a gap therebetween.
a, 29b, and 29c are provided. Rollers 22a and 22b are attached to the upper ends of the first and second support members 21a and 21b, respectively. In the state shown in FIG. ), The first and second pallet lifters 2 and 3 are in contact with dogs 35a and 35b provided near the upper portions of the frames 2d and 3d of the pallet lifters 2 and 3, respectively, and are attached to the rotation center shafts 20a and 20b, respectively. Torsion spring 2
4 and 24 against the biasing force of the rotation center shafts 20a and 20b.
The lower part is inclined so as to intersect with the roller chain 19.

When the sprocket 14 is rotated clockwise in FIG. 5A from the state shown in FIG. 2 and FIG. 5A, only the second pallet lifting body 3 starts to rise, and
Roller 2 of second support member 21b on pallet lifting body 3 side
2b comes out of contact with the dog 35b and is rotationally urged against the stopper 25 by the torsion spring 24, and FIG.
Is not intersected with the roller chain 19 as shown in FIG. When the second pallet lift 3 continues to move up in this state, the engagement protrusion 29a located at the upper end of the outer periphery of the sprocket 14 in the state of FIG. 2 becomes the first support member 21a on the first pallet lift 2 side. As shown in FIG. 5B, the roller chain 19 hangs down on the first support member 21a.

Thereafter, when the second pallet lifting body 3 continues to move upward, the engaging projection 29b located at the lower end of the second pallet lifting body 3 in the state of FIG.
a, the roller chain 19 is double-dropped at the first bearing member 21a. FIG. 5C shows a state in which the roller chain 19 is double-dropped in the first bearing member 21a and the second pallet elevating body 3 is raised most, that is, the same state as FIG. .

During normal operation, FIGS. 3 and 5
When it is necessary to move the vehicle in and out of the lowermost pallet 2c of the first pallet lift 2 from the state shown in FIG. 5C, first, rotate the sprocket 14 counterclockwise in FIG. 5C. As a result, after lowering the second pallet elevating body 3 to return to the state shown in FIG. 2 once, the sprocket 14 is further rotated counterclockwise, and only the first pallet elevating body 2 is raised. At this time, the roles of the first support member 21a and the second support member 21b are switched, and the engagement protrusions 29a, 29c of the roller chain 19 are replaced.
Is locked to the second support member 21b, and the roller chain 19 hangs down on the second support member 21b.

At the upper end of each of the guide members 5 and 6,
When the middle or lower pallets 2b, 2c, 3b, 3c of the first and second pallet elevating bodies 2, 3 are at the position of the road surface 1a, even if the traction force of the roller chain 19 is lost, the pallet does not fall. The locking 7 as a descent-preventing means of the present invention is operably installed on each pallet 2b, 2c, 3b, 3c at the position shown in FIG. The locking 7 is shown in FIG.
It has a plunger 7a, and the plunger 7a projects under the projection 30 provided on the frames 2d and 3d in a protruding state.
By entering through a small gap, even if the roller chain 19 is cut, the pallet lifting body is prevented from falling due to gravity. When the first and second pallet elevating bodies 2 and 3 are stored in the pit 1 or one of them is in the elevating operation, the plunger 7a is provided with the locking member 7 so as not to hinder the operation.
Have been evacuated inside. In the present embodiment, the projection 30 is provided as a member that engages with the plunger 7a to perform the descent-preventing function. Instead, the holes 2d and 3d have a slightly larger diameter than the plunger 7a. , The same function can be achieved.

Next, the operation of the evacuation operation for changing from the state of FIG. 2 to the evacuation state such as a flood in FIG. 4 will be described with reference to FIG. 4 and FIGS. During the evacuation operation from the state of FIG. 2 to the evacuation state of FIG. 4, first, only the second pallet lifter 3 is raised from the state of FIG. 2 to the state of FIG. 3, and then the plunger 7a of the locking 7 is projected. Thus, the second pallet lifting body 3 is supported so as not to descend even if the traction force by the roller chain 19 is released. Thereafter, the sprocket 14 is further rotated counterclockwise to raise the first pallet lift 2 while maintaining the second pallet lift 3 at the highest position. At this time, the first and second bearing members 21a,
Each of the engagement protrusions 29b of the roller chain 19 is urged by the torsion springs 24 so as not to intersect with the roller chain 19 extending vertically.
a, 29b, and 29c are not locked to the first and second support members 21a and 21b. Therefore, the loosened portion of the roller chain 19 is connected to the first and second support members 2.
No droop occurs in any of 1a and 21b.

In such an evacuation operation, the second pallet lifting and lowering means of the present invention is used as second supporting means of the present invention for supporting the relaxed portion of the roller chain 19 in place of the first and second supporting members 21a and 21b. A third support member 26 is provided on a lower surface of the beam 3 e of the body 3. As shown in FIG. 9 and FIG. 10, the third bearing member 26 is formed by combining two flat steels 26a, 26a in parallel with each other with a space therebetween. At other times, the third support member 26 is urged by a torsion spring (not shown) so as to retreat in contact with the lower surface of the beam 3e of the second pallet lift 3 as shown in FIG. ing.

The engaging projections 29a, 2 of the roller chain 19
The portions without 9b, 29c pass through the space between the flat bars 26a, 26a of the third bearing member 26,
When a, 29b, and 29c are sent out, the engagement protrusion 2
9a, 29b, and 29c slide along the upper end of the third support member 26 along the slope, and abut against the locking portions 26c, 26c provided at the tip of the third support member 26 to be locked. As a result, the relaxed portion of the roller chain 19 hangs down from the third support member 26 by its own weight, and the weight of the roller chain 19 causes the third support member 26 to pivot against the urging force of the torsion spring. It is structured to rotate around 26b and tilt.

In the evacuation operation for shifting from the state of FIG. 3 to the evacuation state of FIG. 4, the plunger 7a of the locking 7 is projected to maintain the second pallet lifting body 3 at the highest position, and the sprocket 14 is moved to the evacuation state of FIG. 3, the loosened portion of the roller chain 19 supported and suspended by the first support member 21a in the state of FIG. 3 moves between the pulleys 15 and 16 below the second pallet lifting body 3. And
A droop is formed at this position. Roller chain 1
After the 9 forms a droop between the first pulleys 15 and 16, the third support member 26 rotates by a predetermined angle around the rotation shaft 26b against the biasing force of the torsion spring to be in an inclined state. . Eventually, the engagement protrusion 29b of the roller chain 19 reaches and is locked by the locking portion 26c of the third support member 26, and the hanging 31 in FIG. 4 is formed first. Thereafter, the roller chain 19 bends around the engagement protrusion 29b, and starts forming a droop 32.

Subsequently, the engaging projection 29a is connected to the first support member 2
1a, and this engaging projection 29a is
When the roller chain 19 on the side of the first pallet lifting / lowering body 2 is no longer loosened, the first pallet lifting / lowering body 2 starts to rise. At this point, the first bearing member 2
1a is a rotation center shaft 2 by the rotation urging force of the torsion spring 24.
By rotating around 0a and abutting against the stopper 25 and retracting to a position where it does not intersect with the roller chain 19, the engaging projection 29c can pass beside the first support member 21a. In this state, the sprocket 14 continues to rotate, and the engaging projection 29a reaches the position of the third support member 26, and is further locked by the locking portion 26c of the third support member 26. The projection 29b is abutted and locked. In this state, the roller chain 19 bends at the engagement protrusion 29a and starts to form the hanging 33.

Subsequently, the last engagement projection 29c passes beside the first support member 21a, reaches the third support member 26, and comes into contact with the already engaged engagement projection 29a to engage. It is stopped and forms a droop 34. Then, pallet 2
When the gear c reaches the road surface 1a, the geared motor 11 is stopped, and the locking 7 protrudes the plunger 7a to prevent the lowering of the first pallet elevating body 2 for safety. The state shown in
Complete evacuation operations during floods, etc. When returning from the evacuation state in FIG. 4 to the state shown in FIG. 2, operations in the reverse order to the above are performed.

As described above, in the state shown in FIG. 4 where the evacuation operation at the time of flooding or the like is completed, all the engagement projections 29a, 29b, and 29c are locked by the third support member 26,
The roller chain 19 is quadrupled from the third support member 26, and the length of each descent is relatively short, and also in the width direction below the second pallet elevating body 3. By extending and hanging down, the guide members 5 and 6 of the roller chain 19 and the pit 1
Is prevented from contacting with the bottom surface 1b and tangling due to contact between the roller chains 19.

In the above description of the evacuation operation, the case of changing from the state of FIG. 2 to the state of FIG. 4 through the state of FIG. 3 has been described.
When the first pallet elevating body 2 performs an evacuation operation at the time of a flood or the like from a state where the first pallet elevating body 2 is at the highest position or the middle pallet 2b is on the road surface 1a, the first pallet elevating body 2 is temporarily lowered to the lowest position. After the state of 2, the operation is performed in the above order. However, by attaching a support member similar to the third support member 26 to the lower surface of the beam 2e at the lower end of the first pallet elevating body 2, the first pallet elevating body 2 can be lifted from the raised state. The evacuation operation can be performed in the order in which the first pallet elevating body 2 is raised to the highest position from that state without lowering it, and then the second pallet elevating body 3 is raised.

The embodiments and examples of the present invention disclosed above are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims in the above description, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

[Brief description of the drawings]

FIG. 1 is a plan view of a multi-stage multilevel parking device according to an embodiment of the present invention.

FIG. 2 is a front view of the multi-stage multi-story parking device according to the embodiment of the present invention in a state where both the first and second pallet elevating bodies are entirely stored in a pit.

FIG. 3 shows a normal use state of the multi-stage multi-story parking device according to the embodiment of the present invention, in which only the second pallet lifter is raised and the lowest pallet is at the same level as the road surface. It is a front view showing a state.

FIG. 4 shows an operation state of the multi-stage multi-story parking device according to the embodiment of the present invention at the time of evacuation operation at the time of flood or the like, and FIG.
FIG. 9 is a front view showing a state in which both the first pallet and the second pallet are raised, and their lowermost pallets are at the same level as the road surface.

FIG. 5 is an enlarged front view showing the vicinity of a sprocket in the state shown in FIG. 2 of the multi-stage multilevel parking device according to the embodiment of the present invention.

FIG. 6 is an enlarged plan view of a portion of the multi-stage multilevel parking device according to the embodiment of the present invention corresponding to FIG. 5 in a state shown in FIG. 2 and omitting a part of a sprocket and a roller chain; FIG.

FIG. 7 is an enlarged view showing the vicinity of a geared motor for rotating and driving a sprocket of the multi-stage multilevel parking device according to the embodiment of the present invention.

FIG. 8 is an enlarged view showing locking of the first and second pallet elevating bodies as descent prevention means in the multi-stage multilevel parking device according to the embodiment of the present invention.

FIG. 9 is an enlarged perspective view of a third support member of the multi-stage multilevel parking device according to the embodiment of the present invention.

FIG. 10 is an enlarged view showing a support state of a roller chain in a third support member of the multi-stage multilevel parking device according to the embodiment of the present invention.

FIG. 11 is a front view showing an example of a conventional pit-type multi-level multilevel parking device.

FIG. 12 is a side view of the conventional multi-stage multi-story parking device shown in FIG.

13 is an enlarged front view of a part of a sprocket and a roller chain of the conventional multi-stage multilevel parking device shown in FIG. 11 in a state where both pallet elevating bodies in two rows are entirely stored in a pit. FIG.

FIG. 14 is an enlarged view of a portion of a sprocket and a roller chain in a state where only one of two rows of pallet elevating and lowering members of the conventional multi-stage multilevel parking device shown in FIG. FIG.

FIG. 15 is an enlarged front view showing the vicinity of a sprocket and a support member of the conventional multi-stage multilevel parking device shown in FIG. 11;

FIG. 16 is an enlarged side view of the same portion as that of FIG. 15 of the conventional multi-stage multi-story parking device shown in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pit 2 1st pallet lifting body 2a, 2b, 2c pallet 3 2nd pallet lifting body 3a, 3b, 3c Pallet 5, 6 Guide member (guide means) 7 Locking (fall prevention means) 8 pillars 14 Sprocket 19 Roller chain 21a First support member (first support means) 21b Second support member (first support means) 26 Third support member (second support means) 29a, 29b, 29c Engagement protrusion

Claims (6)

[Claims] 1. A pit which is provided at a predetermined depth from a vehicle road surface and forms an underground space for parking a vehicle, and has two or more vehicle storage sections in a vertical direction in the vehicle surface surface and the pit. A first and a second pallet elevating body, which are provided with two or more stages of pallets, and which are separately arranged adjacent to each other so as to be vertically movable; And a guide means for guiding the vertical movement of the second pallet lifting body, and a lifting drive means for individually lifting and lowering the first and second pallet lifting bodies, wherein the lifting drive means comprises: And a sprocket mounted in the vicinity of the road surface at the boundary of the second pallet elevating and lowering body, the rotation center axis being fixed to the pit in a horizontal direction, and being rotated by rotation driving means. A first and a second pulley having a rotation center axis fixed to a lower end of each of the first and second pallet elevating bodies; and one end of the pit near the road surface on the first pallet elevating body side. And the other end is fixed to the pit in the vicinity of the road surface on the side of the second pallet elevating body, and the intermediate portion is wound around the upper portion of the sprocket so as not to cause slipping, By being wound around the first and second pulleys between the one end and the other end, respectively, between the wrapped portion of the intermediate portion around the outer periphery of the sprocket and the one end and the other end, the second portion is rotated in accordance with the rotation of the sprocket. A roller chain for separately lifting and lowering the first and second pallet lifting members; and a suspension member provided near the rotating member for suspending the relaxed traction member. The roller chain has engagement projections at three or more predetermined positions between the one end and the other end thereof, and The supporting means is arranged such that, when one of the first and second pallet elevating bodies is moved up and down while the other pallet elevating body is housed in the pit, the supporting member is more than the rotating member. A multi-stage multi-story parking device having a mechanism for suspending the roller chain in the relaxed state by locking the engaging projection of the roller chain in the relaxed state on the one pallet lifting body side. 2. A sprocket is provided on the lower surface of the first pallet elevator when the second pallet elevator is moved upward while the lowermost pallet of the first pallet elevator is at a road surface position. The apparatus according to claim 1, further comprising a second bearing means for locking said engaging projection of said roller chain in a relaxed state on a side of said first pallet elevating body to suspend said roller chain in said relaxed state. 2. The multi-stage multilevel parking device according to 1. 3. The multi-stage multi-story parking device according to claim 1, wherein the engagement projection is formed by an extension pin extending laterally from a rotation center pin of a roller constituting the roller chain. 4. The first support means is provided so as to be independently rotatable in the vicinity of the sprocket, and is configured to lock the engagement protrusion of the roller chain at a predetermined rotation angle. A first and a second support member having a portion, wherein the first support member is connected to the sprocket only when the first pallet elevating body is at a lowermost position stored in the pit. The first pallet elevating body is maintained at a rotational angle position for suspending the roller chain by locking the engaging projection of the roller chain suspended from the first pallet elevating body side, and the first pallet elevating body is located at a position other than the lowest position. And a mechanism for retracting to a rotation angle position in which the engagement protrusion is not locked in the state described in (1), wherein the second support member is provided in a state where the second pallet lifter is stored in the pit. Only when it is at the position, the rotation angle position for suspending the roller chain by locking the engaging projection of the roller chain suspended from the sprocket to the second pallet lifting body side, and The multi-stage multilevel parking device according to any one of claims 1 to 3, further comprising a mechanism for retracting to a rotation angle position where the two pallet lifting members are not at the lowermost position and the engagement protrusions are not locked. 5. The second support means is rotatable about a rotation center fixed to the lower surface of the first pallet lifter and is in contact with the lower surface of the first pallet lifter. The first pallet lifting / lowering body of the first pallet elevating body includes a third supporting member having a predetermined length, which is urged and provided at a tip thereof with a locking portion for locking the engaging projection of the roller chain. When the second pallet lift is moved up while the lowermost pallet is at the position of the road surface, the engagement protrusion of the roller chain, which is wound on the first pallet lift by the sprocket, is locked. The roller chain is suspended on the third support member in a state where the roller chain is locked to the lower portion, and the third support member is moved to the lower surface of the first pallet lifting body by the weight of the suspended roller chain. To bias And rotates downward, multistage multilevel parking apparatus according to claim 2, wherein. 6. The lowering pallet of the first or second pallet elevating / lowering body, wherein the lowering pallet of the first or second pallet elevating body is not lowered even after the traction force of the roller chain is removed. The multi-stage multi-story parking device according to any one of claims 1 to 5, including means.