JPH0762407B2 - Multi-level parking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-story parking apparatus having three or more parking floors and a plurality of laterally-arranged parking spaces.

[0002]

2. Description of the Related Art Hitherto, there has been known a multi-level parking apparatus having a plurality of parking stages and a plurality of rows of parking spaces in a lateral direction in order to effectively utilize a site used for a parking lot. For example, in the case of a pit-type three-dimensional parking device, a plurality of rows of pits built underground and parking tiers constructed on the ground for the second floor are arranged side by side. This multi-level parking device includes a traversing pallet that is horizontally movable horizontally on the floor of the first floor above the ground, and a lower stage pallet that can move between the pit and the first floor above the ground by one stroke. It is equipped with an upper lift pallet that can be moved up and down between the first and second floors by the stroke of the first floor. In other words, this pit-type three-dimensional parking system is a three-tiered parking system with one basement floor and two floors above the ground, and an empty space for one pallet is required on the first floor above the ground. In this case, the number of parked vehicles has a capacity of (3n-1).

[0003]

In the conventional pit type multi-level parking apparatus, it takes a lot of time to construct a pit, construction costs are high, and construction takes days. Moreover, it is often impossible to physically build a pit in the center of the city, not only because it costs time and money but also because of the relationship with the neighboring land.
Therefore, in order to achieve a high accommodation capacity without using a pit, it is necessary to increase the number of parking stairs by providing three or more parking steps on the ground.

However, if the height of the multi-story parking system is increased, 2
Since the lifting stroke of the pallets on each floor above the floor becomes longer depending on the number of floors, special consideration must be given to the lifting drive of the pallets. That is, in the multi-storied parking system with a high-rise structure, since the lifting and lowering operation of the pallet has a long stroke,
Since it is difficult to handle the chain for each pallet with the suspension method using a chain, a wire rope type lifting drive unit is generally adopted. When using the wire rope type elevator drive unit, in order to eliminate the counterweight, the wire rope that suspends the pallet is wound around the drum, and this drum is rotated by the motor to wind or wind the wire rope around the drum. It is configured to feed and raise and lower the pallet.

However, in the wire rope type elevating / lowering unit, it is necessary to use a drum having a large outer diameter in order to comfortably wind the wire rope, and moreover, the winding approach angle of the wire rope to the drum changes. The pallet hoisting pulley supporting the middle portion of the wire rope in the length direction is adversely affected, and there is a problem in durability and tensile strength of the wire rope due to winding the wire rope around the drum.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a multi-story parking system capable of realizing a highly reliable chain suspension structure even when a pallet moves in a long stroke on each floor due to the increase in the number of parking floors. is there.

[0007]

SUMMARY OF THE INVENTION The present invention, which was developed to achieve the above object, has a multi-level parking system having three or more parking stages and a plurality of parking spaces in the lateral direction. A pallet that can traverse is provided in the parking space on the bottom floor, and an empty space for at least one pallet is provided on the bottom floor, and the parking space on the top floor of each row is the top floor by a chain-type lifting drive. To the lowest floor, an upper floor pallet is provided that can be lifted up and down, and a traverse frame that can traverse is provided in the parking space on the middle floor of each row, and at least one pallet is vacant on this intermediate floor. An intermediate pallet that has a space and is suspended in the traverse frame by a chain-type lifting drive unit so that it can be lifted and lowered within a stroke range from the middle floor to the bottom floor. It is provided.

The chain-type lifting drive unit includes a pair of front and rear chains connected to one side of the pallet,
A pair of front and rear chains connected to the other side of the pallet, a drive sprocket that winds each chain, a lift drive motor that rotates the drive sprocket, and a drive sprocket that is sent out when the pallet rises. A chain reservoir for accommodating a slack side surplus portion of the chain that hangs down; and a chain guide portion that is provided in the vicinity of the meshing portion of the chain with the drive sprocket and guides the chain so that the chain meshes with the drive sprocket. is doing.

[0009]

[Operation] When the drive sprocket is rotated in the direction of raising the pallet by the lifting drive motor, the excess portion on the slack side of the chain meshing with the drive sprocket is fed to the chain reservoir while being guided by the chain guide portion, and the chain reservoir is retained. It is housed compactly inside the chain reservoir while being properly collapsed by the internal chain collapse part. When the drive sprocket is rotated in the direction of lowering the pallet, the slack side surplus portion of the chain housed in the chain reservoir is guided by the chain guide part and is fed out from the chain reservoir as the drive sprocket rotates. The amount of excess chain inside the chain reservoir decreases.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The multilevel parking apparatus 10 shown in FIG. 6 includes a fixed frame 11 constructed on the ground. The fixed frame 11 is constructed by combining a vertical column frame 12 as a frame element, a horizontal beam frame 13 and an appropriate reinforcing material, and is constructed from the first floor (bottom floor) in the height direction. The number of parking steps is three or more up to the i-th floor (top floor), and there are a plurality of rows (1 to n rows) of parking spaces in the lateral direction when viewed from the front. The parking space 15 located on the bottom floor of each row has an entrance / exit that is wide enough to allow a vehicle to be loaded and unloaded in the front-rear direction. Note that, as shown in FIG. 7, a plurality of (1 to k) parking spaces may be provided in the depth direction.

In this multilevel parking apparatus 10, traversable lower floor pallets 19 are arranged in a parking space 15 on the lowest floor of each row. The number of lower pallets 19 is 1 rather than the number of columns n
There is only 20 vacant spaces for one pallet on the bottom floor.
Is secured. Further, the uppermost floor pallet 22 of the same number as the number of rows is provided in the parking space 21 on the uppermost floor of each row. In addition, in the parking space 23 on the middle floor of each row, the number of rows n
One less intermediate pallet 24 is provided. Therefore, an empty space 25 for one pallet is secured on each intermediate floor.

The lower floor pallet 19 is used for the multilevel parking system 1.
0 can be moved in the horizontal direction by a traverse drive mechanism (not shown) along a guide member (not shown) extending in the left-right direction when viewed from the front. That is,
All lower floor pallets 19 should have at least 2 available spaces
A stroke range corresponding to a width of 0 can be traversed.

On the other hand, the upper floor pallet 22 is a chain type elevator drive unit 3 for the upper floor pallet shown in FIGS. 1 and 3.
By 0, the stroke range from the uppermost floor to the lowermost floor can be lowered and raised. FIG. 3 shows a state in which the upper floor pallet 22 is raised to the uppermost floor, and FIG. 5 shows a state in which the upper floor pallet 22 is lowered to the lowermost floor and landed.

The lift drive unit 30 for the upper floor pallet is wound around the pallet lifting guide pulleys 31, 32, 33, 34 provided on the uppermost floor vertical beam frame 13a and the guide pulleys 31, 32 located on one side. It is provided with a pair of front and rear chains 41 and 42 that are hung, and a pair of front and rear chains 43 and 44 that are wound around the guide pulleys 33 and 34 on the other side. The chains 41 to 44 are, as shown in FIG.
Both are roller chains in which a large number of links 45 are rotatably connected by pins 46. These chains 41 to 44 have such a length that the upper pallet 22 can be lowered from the uppermost floor to the lowermost floor.

The upper floor pallet 22 is connected to one end of each chain 41 to 44, and the upper floor pallet 22 is suspended by the chains 41 to 44. Chains 41-
The drive sprocket 5 is provided at the intermediate portion in the lengthwise direction on the other end side of 44.
It is wound around 1, 52, 53, 54. The drive sprockets 51 to 54 are fixed to the lifting drive shaft 55 and rotate integrally with each other. Lift drive shaft 55
Are bearings 56 provided on the uppermost vertical beam frame 13a.
It is rotatably supported by 57.

The elevating drive shaft 55 is rotated by an elevating drive motor 60 as a drive source. A power transmission mechanism 61 is provided between the lifting drive motor 60 and the lifting drive shaft 55. The power transmission mechanism 61 of the illustrated example includes a speed reducer 62 provided on the lifting drive motor 60, a primary side sprocket 63 attached to the output shaft of the speed reducer 62, and a secondary side sprocket provided on the lifting drive shaft 55. 64 and these sprockets 6
A winding transmission body 65 such as a chain wound around 3, 64
And so on. The motor 60 is the horizontal beam frame 1 on the top floor.
It is supported by 3b.

The sensor means 7 is mounted on the uppermost vertical beam frame 13a.
0 is provided. The sensor means 70 in the illustrated example includes a sensor 71 for detecting a pallet rising end and an emergency rising end detecting sensor 72. A sensor striker 73, which is an example of a detected portion, is fixed to an intermediate portion in the length direction of the chain 43.

The sensor striker 73 is the upper pallet 2
When 2 is raised to a predetermined upper limit position (raised end), it comes into contact with the sensor 71 for detecting the pallet raised end,
It is possible to detect that the upper pallet 22 has reached the rising end. When the sensor 71 for detecting the rising end does not detect the sensor striker 73 for some reason, the emergency rising end detecting sensor 72 replaces the sensor 71 for detecting the rising end and the upper floor pallet 22 reaches the rising end. Detect what you have done.

A box-shaped chain reservoir 77 is provided below the drive sprockets 51 and 52 on one side. Chain holder 7 is also provided below the drive sprockets 53, 54 on the other side.
8 are provided. As shown as a representative of one chain reservoir 77 in FIG. 3, the upper end side of the chain reservoir 77 is open, and the chain discharge portion 80 of the drive sprockets 51 and 52 is located above this opening. Chain holder 7
The vertical length of 7, 78 depends on the ascending / descending stroke of the upper pallet 22, and the excess portions 41a to 44a of the chain.
The size is large enough to accommodate.

At the bottoms of the chain reservoirs 77 and 78, mountain-shaped chain breaking portions 81 are provided. The upper end of the chain breaking portion 81 has drive sprockets 51 to 54.
When the slack side surplus portions 41a to 44a of the chain, which project toward the chain discharging portion 80 of the chain and hang down from the chain discharging portion 80, come into contact with the chain breaking portion 81, the surplus portions 41a to 44a are distributed back and forth. However, they are stacked inside the chain reservoirs 77 and 78 without causing a rod-shaped reservoir phenomenon.

The tips of the excess portions 41a to 44a of the chain are connected to a chain fixing portion 85 (a part of which is shown in FIG. 3) provided inside the chain reservoirs 77 and 78. Inside the chain reservoirs 77 and 78, a sensor 86 for detecting the descending end and a sensor 8 for detecting the descending end for emergency use.
7 is provided. When the upper floor pallet 22 reaches the landing state shown in FIG. 5, the sensor 86 for detecting the descent end detects the excess portions 41a to 44a of the chain that hang down in a U shape inside the chain reservoirs 77 and 78. It is possible to detect that the upper-floor pallet 22 has landed by touching. When the sensor 86 for detecting the lowering edge does not detect the landing of the upper floor pallet 22 for some reason, the emergency lowering edge detecting sensor 87 replaces the sensor 86 for detecting the lowering edge and detects the upper floor pallet 22. It is designed to detect landing. These sensors 86 and 87 constitute sensor means 88 for detecting the falling edge.

A chain guide portion 90 is provided near the drive sprockets 51 to 54. As shown in FIG. 8 in which a part of the chain guide portion 90 is enlarged, the chain guide portion 90 of the illustrated example has drive chain sprockets 51 to 54.
A chain jump prevention guide 91 extending downward from above along the outer peripheral portion of and a winding prevention guide 92 located below each drive sprocket 51-54.

The gap 93 between the chain jump prevention guide 91 and the winding-in prevention guide 92 is defined by the drive sprocket 51.
~ 54 while curving along the outer periphery of the drive sprocket 51-54, downward, that is, the drive sprocket 5
It extends in the tangential direction of 1 to 54. Therefore, the drive sprocket 51 to the inner surface of the upper portion of the chain jump prevention guide 91
A corner curved portion 94 is formed along the outer peripheral portion of 54. By using the chain jump prevention guide 91 and the entanglement prevention guide 92 having such shapes, the chain 4
When the chains 1 to 44 move in the direction of the arrow F in FIG. 8, the chains 41 to 44 are smoothly and surely driven.
Since it is possible to mesh with 54, it is possible to prevent a so-called tooth skipping phenomenon.

A sloping surface 97 that spreads in a "H" shape is provided at the lower end of the gap 93 between the chain jump prevention guide 91 and the winding prevention guide 92, and the slack side surplus portions 41a to 44a of the chain are formed. When moving in the direction of the arrow R in the bent state, the surplus portions 41a to 44a are raised while being straightened, so that the chains 41 to 44 can smoothly mesh with the drive sprockets 51 to 54. I am trying.

Lifting / driving unit 30 for the upper floor pallet having the above structure
When the drive sprockets 51 to 54 are rotated by rotating the lifting drive motor 60, the chains 41 to 44 are rotated according to the rotation direction of the drive sprockets 51 to 54.
The upper floor pallet 22 moves up and down in the stroke range from the rising end shown in FIG. 3 to the falling end shown in FIG. When the upper floor pallet 22 descends and lands on the floor, the slack side surplus portions 41a to 44a of the chain come into contact with the sensor 86 for detecting the lowering end, whereby the lifting drive motor 60 is stopped and the upper floor pallet 2
2 stops at the landing position.

When the lift drive motor 60 is rotated in the opposite direction, the upper pallet 22 rises, and the sensor striker 73 contacts the sensor 71 for detecting the rising end when the pallet 22 has risen to the rising end shown in FIG. Thus, the rotation of the lifting drive motor 60 is stopped, and the upper floor pallet 22 is stopped at the rising end.

Next, the intermediate pallet drive mechanism 100 for driving the intermediate pallet 24 will be described with reference to FIGS.
Will be described with reference to. The intermediate pallet 24 can move a stroke range corresponding to at least the width of the empty space 25 (see FIG. 6) in the horizontal direction, and can lower and raise the stroke range from the middle floor to the bottom floor. It is configured to be able to.

As shown in FIGS. 2 and 4, the intermediate pallet drive mechanism 100 includes a traverse frame 110. A traverse drive wheel 111 and a follower wheel 112 are provided at the front and rear of the traverse frame 110, respectively. The driving wheel 111 and the driven wheel 112 are in rolling contact with guide rails 115 and 116 extending in the horizontal direction, respectively, so that the transverse frame 110 can travel along the guide rails 115 and 116. Guide rails 115 and 116
Is fixed to the column frame 12.

The drive wheel 111 is the transverse drive shaft 12
It is attached to 0. A traverse drive sprocket 121 is attached to the traverse drive shaft 120. Traverse drive chain 1 wrapped around traverse drive sprocket 121
22 is wound around an output sprocket 124 provided on the output shaft of a traverse drive motor 123 with a speed reducer. Therefore, when the traverse drive shaft 120 rotates due to the traverse drive motor 123 rotating, the traverse frame 110 travels rightward or leftward due to the drive wheels 111 rotating.

The traverse frame 110 is provided with a chain-type lifting drive unit 130 for intermediate pallets. The lifting drive unit 130 includes guide pulleys 131, 132, 13 for lifting pallets provided on the traverse frame 110.
3,134 and guide pulleys 131,1 located on one side
A pair of front and rear chains 141 and 142 wound around 32
And a pair of front and rear chains 143 and 144 wound around the guide pulleys 133 and 134 on the other side.
Each of the chains 141 to 144 is a roller chain similar to the chains 41 to 44 for the upper floor pallet described above.
These chains 141 to 144 are formed on the intermediate pallet 24.
Has a length capable of descending from the middle floor to the bottom floor.

An intermediate pallet 24 is connected to one end side of each of the chains 141 to 144.
The intermediate pallet 24 is hung by the number 4. The lengthwise intermediate portion on the other end side of each chain 141 to 144 is wound around the drive sprockets 151, 152, 153, 154. The drive sprockets 151 to 154 are fixed to the elevating drive shaft 155 and rotate integrally with each other. The elevating drive shaft 155 is attached to the traverse frame 110.
It is rotatably supported by bearings 156 and 157 provided on the.

The lift drive shaft 155 is rotated by a lift drive motor 160 as a drive source. A power transmission mechanism 161 is provided between the lifting drive motor 160 and the lifting drive shaft 155.
The power transmission mechanism 161 in the illustrated example is a lifting drive motor 160.
162, a primary side sprocket 163 attached to the output shaft of the reduction gear 162, and a secondary side sprocket 164 provided on the lifting drive shaft 155.
And a winding transmission member 165 such as a chain wound around these sprockets 163 and 164. The motor 160 is supported by the transverse frame 110.

The traverse frame 110 is provided with sensor means 170. The sensor means 170 in the illustrated example includes a sensor 171 for detecting a pallet rising end and an emergency rising end detecting sensor 172. A sensor striker 173, which is an example of a detected portion, is fixed to an intermediate portion of the chain 143 in the length direction.

The sensor striker 173 makes it possible to detect that the intermediate pallet 24 is located at the ascending end by contacting the sensor 171 for detecting the ascending end when the intermediate pallet 24 ascends to a predetermined intermediate floor. ing. When the sensor 171 for detecting the rising end does not detect the sensor striker 173 for some reason, the emergency rising end detecting sensor 172 replaces the sensor 171 for detecting the rising end and the intermediate pallet 24 reaches the rising end. Detect that.

A box-shaped chain reservoir 177 is provided below the drive sprockets 151 and 152 on one side.
A chain reservoir 178 is also provided below the drive sprockets 153 and 154 on the other side. These chain reservoirs 177 and 178 have the same shape as the chain reservoirs 77 and 78 of the upper pallet lifting drive unit 30 described above, and the chain collapse portions 181 are respectively provided at the bottoms of the chain reservoirs 177 and 178. It is provided. The chain breaking portion 181 is a slack side excess portion 141a to 144 of the chain that hangs from the drive sprockets 151 to 154.
Chain holders 177 and 178 while sorting a back and forth
I'm trying to stack them inside. Chain holder 17
The vertical length of 7, 178 depends on the lifting stroke of the intermediate pallet 24, and the surplus portions 141a to 141 of the chain.
The size is large enough to accommodate 44a.

Excessive parts 141a-14 of the slack side of the chain
The tips of 4a are connected to chain fixing portions 185 (illustrated in part in FIG. 4) provided inside the chain reservoirs 177 and 178, respectively. Chain holder 1
A sensor 186 for detecting the falling end is provided inside 77, 178,
An emergency down edge detection sensor 187 is provided. The sensor 186 for detecting the descending end detects the chain reservoirs 177, 17 when the intermediate pallet 24 is landed on the lowest floor.
It is possible to detect that the intermediate pallet 24 has landed by contacting the sensor 186 with the surplus portions 141a to 144a of the chain that hang down in a U shape in the inside of No. 8. The emergency falling edge detection sensor 187 is
When the sensor 186 for detecting the falling edge does not detect the landing of the intermediate pallet 24 for some reason, the sensor 186 for detecting the falling edge detects the landing of the intermediate pallet 24. These sensors 186 and 187 form sensor means 188 for detecting the falling edge.

A chain guide portion 190 is provided near the drive sprockets 151-154. The chain guide portion 190 has the same shape as the chain guide portion 90 for the upper floor shown in FIG.
And a entanglement prevention guide 192 so that the chains 141 to 144 can be smoothly and surely engaged with the drive sprockets 151 to 154.

Lifting / driving unit 13 for the intermediate pallet having the above structure
0 rotates the lifting sprocket motors 160 to rotate the drive sprockets 151 to 154, so that the chains 141 to 144 are lifted or hung depending on the rotation direction of the drive sprockets 151 to 154. Moves up and down the stroke range from the middle floor to the bottom floor. When the intermediate pallet 24 descends and lands, the slack side surplus portions 141a to 14a of the chain
4a comes into contact with the sensor 186 for detecting the lowering end, the lifting drive motor 160 stops, and the intermediate pallet 24 stops at the landing position.

When the lifting drive motor 160 is rotated in the opposite direction, the intermediate pallet 24 is lifted up, and when the intermediate pallet 24 is lifted up to a predetermined intermediate floor, the sensor striker 173 contacts the sensor 171 for detecting the rising end so that the lifting drive motor is driven. 1
The rotation of 60 stops, and the intermediate pallet 24 stops at the rising end.

The elevator drive unit 30, the intermediate pallet drive mechanism 100, and the traverse drive mechanism for moving the lower floor pallet 19 of the above-structured multi-level parking apparatus 10 are drive-controlled by a controller using a microcomputer or the like (not shown). That is, when a row and floor of a pallet to be loaded and unloaded is specified, an empty space is created immediately below the pallet so that the pallet can descend to the lowest floor, and then the pallet is moved to the lowest level. Can be lowered to the lower floor.

For example, when it is desired to leave the automobile 200 on the uppermost pallet 22 in the fourth row from the left in FIG. 6, the intermediate pallet 24 and the lower pallet 24 located below the upper pallet 22. By traversing 19 horizontally for 1 stroke as indicated by arrow A in FIG. 11, an empty space is secured just below the upper floor pallet 22 on which the automobile 200 is riding. In this state, the upper floor pallet 22
Is dropped in the direction of arrow B and landed on the bottom floor, the vehicle 200 can be brought out from the entrance on the bottom floor. The reverse operation to the above is performed at the time of warehousing. Since a series of these operations are automatically performed by the controller, the operator only has to operate the parking position designation button provided on the operation panel.

When the upper pallet 22 (or the intermediate pallet 24) descends, the chain reservoirs 77, 78 (17)
The slack side excess portions 41a to 44a (141a to 144a) of the chain accumulated in the inside of the chain sprocket 51 to 54 (151 to 154) are accumulated in the chain 77, 78 (177, 178). It is fed out from. In this case, the chain reservoir 77, 78 (17
7, 178) inside the chain excess parts 41a-44
Even when a (141a to 144a) rises in a bent state, the surplus portions 41a to 44a (141a) are formed by the C-shaped inclined surface 97 at the bottom of the chain guide portion 90 (190).
~ 144a) is released from the bent state and straightened and guided by the drive sprockets 51-54 (151-154), the chains 41-44 (141-144) are smoothly and reliably driven by the drive sprockets 51-54 (. 151 ~
154).

When the upper pallet 22 (or the intermediate pallet 24) rises, the slack side excess portion 4 of the chain
1a to 44a (141a to 144a) from the drive sprockets 51 to 54 (151 to 154) to the chain reservoir 7
It is dropped inside 7,78 (177,178). In this case, the surplus portions 41a to 44a (141a to
144a) falls on the chain breaking portion 81 (181), and thereby the excess portions 41a to 44a (141a to 1)
44a) is bent and distributed back and forth,
The chains are accumulated in the chain reservoirs 77, 78 (177, 178) in order from the bottom. For this reason, it is possible to prevent the excessive portions 41a to 44a (141a to 144a) of the chain from being in an undesired laminated state such as rising in a rod shape.

When the pallet 22 (24) is raised, the chains 41 to 44 (141 to 14) are moved.
4) is guided by the chain jump prevention guides 91 and 191 in a direction in which the drive sprockets 51 to 54 (151 to 154) are kept in mesh with each other.
(141 to 144) surely drive sprocket 51 to 5
4 (151 to 154) and the excess portions 41a to 44a (141a to 144a) of the chain are smoothly sent to the chain reservoirs 77, 78 (177, 178).

As shown in FIG. 9, a chain holding pulley 211 rotatably supported by a bearing 210 may be used for the chain guide portions 90 and 190, or as shown in FIG. Straight chain jump prevention guides 91 and 19
Even if the number is 1, the purpose of the chain guide portions 90 and 190 can be achieved.

Further, the chains 41 to 44, 141 to 14
4 is not limited to a roller chain, and may be, for example, a chain chain type chain in which elliptical ring-shaped links used in a chain block are sequentially connected.

The multilevel parking apparatus 10 shown in FIG.
As described above, the rank may be different in each column (1 to n columns). In this case, the upper floor pallet 2 is on the top floor of each row.
2 are arranged, and the lower floor pallet 1 is placed on the bottom floor of each row.
9 and an empty space 20 for one pallet. In addition, an intermediate pallet 24 and an empty space 25 for one pallet are provided on the intermediate floor of each row. Further, as shown in FIG. 13, in the multi-story parking apparatus 10 having a plurality of parking spaces (1 to k stations) in the depth direction, the present invention can be applied to the case where the number of floors is different for each station.

[0048]

According to the present invention, a pallet that moves up and down with a long stroke in the vertical direction is securely hung by a chain due to the increase in the number of parking floors, and the chain is reliably secured with respect to the sprockets that drive each chain. Since it can be engaged and the slack side surplus part of the chain can be put together well, it is possible to increase the number of floors of the parking floor while using the chain suspension structure, and to make more effective use of the parking lot site, There is no increase in weight as in the case of using a counterweight, and there is no problem in durability or strength as in winding a wire rope on a drum.

[Brief description of drawings]

FIG. 1 is a perspective view of an elevator driving unit for an upper floor pallet of a parking device showing an embodiment of the present invention.

FIG. 2 is a perspective view of a lifting drive unit for an intermediate pallet of a parking device showing an embodiment of the present invention.

FIG. 3 is a side view showing, in a partial cross section, a lift drive unit for the upper pallet shown in FIG.

FIG. 4 is a side view showing a partial cross section of the intermediate pallet lift drive unit shown in FIG. 2;

FIG. 5 is a side view showing, in a partial cross section, a state in which the lift drive unit for the upper floor pallet shown in FIG. 1 is landed.

FIG. 6 is a front view showing the overall appearance of a multi-level parking device showing an embodiment of the present invention.

FIG. 7 is a side view of the multilevel parking apparatus shown in FIG.

8 is a side view of a chain guide unit used in the lifting drive unit shown in FIG.

FIG. 9 is a side view showing a modified example of the chain guide portion.

FIG. 10 is a side view showing another modification of the chain guide portion.

FIG. 11 is a front view showing an example when the multi-story parking apparatus shown in FIG.

FIG. 12 is a front view showing a modified example of the multi-level parking device.

FIG. 13 is a side view showing another modification of the multilevel parking apparatus.

[Explanation of symbols]

10 ... Multi-level parking device, 11 ... Fixed frame, 19 ... Lower floor pallet, 20 ... Empty space, 22 ... Upper floor pallet,
24 ... Intermediate pallet, 25 ... Empty space, 30 ... Lifting / lowering drive unit for upper pallet, 41, 42, 43, 44 ... Chain, 51, 52, 53, 54 ... Drive sprocket,
60 ... Lifting drive motor, 70 ... Sensor means, 77, 78
... Chain storage, 81 ... Chain collapse part, 90 ... Chain guide part, 100 ... Intermediate pallet drive mechanism, 110 ...
Traverse frame, 130 ... Lifting drive for intermediate pallet,
141, 142, 143, 144 ... Chain, 151,
152, 153, 154 ... Drive sprocket, 160 ...
Lifting drive motor, 170 ... Sensor means, 177, 178
… Chain storage, 181… Chain collapse part, 190… Chain guide part.

Claims (2)

[Claims] 1. A multi-story parking apparatus having a number of parking stages of three or more floors and a plurality of rows of parking spaces in the lateral direction, wherein a traversable lower floor pallet is provided in the lowermost parking space of each row. An empty space for at least one pallet is provided on the lowermost floor, and a chain-type lifting drive unit is installed in the uppermost parking space of each row so that the stroke range from the uppermost floor to the lowermost floor can be lifted and lowered. A pallet is provided, and a transverse frame that can traverse is provided in the parking space on the intermediate floor of each row, and an empty space for at least one pallet is provided on the intermediate floor. An intermediate pallet is provided that can be lifted up and down in the stroke range over the bottom floor, and the chain-type lifting drive is one side of the pallet. A pair of connected front and rear chains, a pair of front and rear chains connected to the other side of the pallet, a drive sprocket for winding each of the chains, a lifting drive motor for rotating the drive sprocket, and the pallet rising The chain sump that accommodates the slack side surplus portion of the chain that is sent out from the drive sprocket and hangs down when the A multi-story parking apparatus comprising: a chain guide unit that guides the vehicle. 2. The multi-level parking apparatus according to claim 1, wherein a chain collapsing portion is provided inside the chain reservoir to collapse a surplus side portion of the chain fed from the drive sprocket to the chain reservoir. .