JPH0694741B2 - Pallet removable mechanical parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pallet-removable mechanical parking device in which a pallet for mounting on a vehicle is removably provided in a cage frame of the mechanical parking device. It relates to the installed parking device.

[Prior art]

Conventionally, when using, for example, a circulation type three-dimensional parking apparatus, it has been usual to move a car forward into a cage to store it, and to retract it to leave the car. Therefore, in order to prevent the danger of moving backward and leaving the vehicle directly on the main road, it is necessary to install a turntable for changing the direction at the entrance / exit of the multi-story parking system, which leads to a decrease in land use efficiency and economic efficiency. There was a problem in terms.

For this reason, in recent years, as shown in FIGS. 2 to 4, the vehicle-mounted pallet 10 has been constructed so that it can be separated from the cage frame 11, and in the pit 21, the lifting frame 30, the traverse frame 40 and the turning frame 50 can be separated. Equipped with a lifting traverse device 100,
A parking device has been proposed in which the pallet 10 is lifted and freely rotated by a required angle.

[First problem to be solved by the invention] However, when the mechanical parking device becomes a tandem parking device in which two or more mechanical parking devices are arranged in a tandem, the parking devices of all the machines are simply replaced by the pallet removable mechanical parking device described above. It is not possible to replace it with a device so that the cars stored in all the cars can leave the car in a positive state.

That is, as shown in FIG. 5, both sides of the parking equipment 1 in the vehicle entry direction face the road 2 like a parallel parking device installed in a valley of a building in a big city, and are free from the entrances 5 and 5 '. In the case of a parking device that allows cars to be put in and taken out of, a car with a rear-row parking device that has entered from the doorway 5 can also be put out from the doorway 5 or a car with a front-row parking device that has been put in from the doorway 5'from the doorway 5 '. When you take it out,
The front row parking device and the rear row parking device must be of a turntable built-in type, and the front lane parking device and the rear lane parking device must be respectively configured with the lanes 3 and 4, and as shown in FIG. In the case of a parallel parking system, if the cage of the front parking system does not exist at the entrance / exit position, the road 3'may be similarly formed (the rear parking system may not have the road). As is clear from FIGS. 3 and 7, the lateral width of the pit 21 is larger than the lateral width of the cage, and the swivel frame 5 of the elevating and traversing device 100 is
Since the lateral width of 0 (the part that engages with the pallet 10) is smaller than the lateral width of the cage, a large gap is created between the side surface of the pit and the swivel frame 50 when the cage is not located at the entrance / exit position, and the swivel frame 50 It cannot be used as the roadway of an automobile.

A first aspect of the present invention has been made in view of the above points, and an object thereof is to provide a parking device in which a pallet-removable mechanical parking device can be used regardless of the position of the machine in the parallel parking device. And

[Means for Solving the First Problem] In the first aspect of the present invention, in short, an elevator traverse turning device for raising and lowering a vehicle mounting pallet is conventionally provided in a pit, whereby a vehicle can be freely moved together with the vehicle mounting pallet. Although it was turning, a roadway plate was installed transversely above this vertical traverse turning device to drive the car when the front-row parking device facing the doorway was in operation or the cage of the front-row parking device was stopped at the doorway. When the road plate is evacuated to the side and the vehicle is moved in and out of the rear-row parking device, the road plate is configured as a passage so that the front-row parking device is detachable from the pallet.

If the rear-row parking device also faces the entrance, the problem can be solved by using the same structure as the front-row parking device.

〔Example〕

An embodiment of the device according to the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the device of the present invention, and shows a case where the cages 12 and 13 of the front row and rear row parking devices in the tandem parking device are both stopped at the position of the doorway 5, and FIG. When the cage 12 of the front row parking device does not exist at the position of the doorway 5 (that is, the cage 12 has the notch at the position of the doorway 5), and only the cage 13 of the rear row parking device stops at the position of the doorway 5 Represents 9 is a sectional view taken along the line II-II of FIG. 1, FIG. 10 is a sectional view taken along the line III-III of FIG. 8, and FIG. 11 is the pallet of the cage of the front-row parking device in FIG. A sectional view is shown. In the figure, the same reference numerals as those in FIGS. 2 to 7 indicate the same elements, but 60 and 60 'are pits 21.
A guide frame 61, 61 'is laid laterally of the parking facility 1 on the support frame 60, 60'. As shown in FIGS. 12 and 13, 62 is a roller 62a, 62b, 62c, 62d near the four corners of the back surface.
, Which are guided by the guide rails 61 and 61 ', respectively, to move, and bearings are provided on the rear surface of the roadway plate 62.
A shaft 64 is rotatably provided in the front-rear direction via 63,
Rollers 62a and 62b are fixed to both ends of the shaft 64, and a chain 68 is wound around a sprocket 66 also fixed to the shaft 64 and a sprocket 67 fixed to the shaft end of the motor 65, so that the motor 65 is driven. It is driven (the explanation is omitted because the road plate 62 'has the same structure). And 70 is a fixed step.

〔The invention's effect〕

With such a configuration, when the front-row parking device is in operation or the cage 12 of the front-row parking device is stopped at the position of the doorway 5, the road plate 62 is driven by the motor 65 to rotate the sprocket 67, the chain 68, and the sprocket 66. Then, it is driven via the shaft 64 (the same applies to the case of the road plate 62 ') and retracted to the left and right as shown in FIG. The pallet 10 can be turned, while the car 12 in and out of the rear-row parking device is provided with the notch of the cage 12 of the front-row parking device at the doorway 5 and the road plate 62 (the road plate 62). (The same applies to the case of ') is guided to the guide rails 61, 61' by the motor 65 and drawn to the entrance / exit 5. As shown in FIGS. 8 and 10, the car can be freely loaded / unloaded into / from the cage 13 of the rear-row parking device. By letting Wear.

[Second problem to be solved by the invention] However, even with the same parallel parking system, as shown in FIG. 14, a doorway 5 of a vehicle is provided in a vertical parking system of a type provided on the side surface of the front parking system. In the case of a parking device, when moving a vehicle in and out of the rear-row parking device, the car must be turned 90 ° in the front-row parking device, so even if the front-row parking device is provided with a freely traversable road plate. However, there is a drawback that the parking device cannot be fully used.

A second aspect of the present invention has been made in view of the above points. Regardless of which position of a tandem parking device has an entrance / exit of a vehicle, both front and rear parking devices can be used efficiently and safely. An object is to provide a mechanical parking device.

[Means for Solving the Second Problem] In the second aspect of the present invention, in short, a road plate is provided so as to traverse above the pallet elevating traverse device of the front-row parking device, and the road plate is rotated. The turntable can be freely constructed or can be lifted and lowered independently of the pallet elevating and traversing device so that the direction of the vehicle can be freely changed in the front-row parking device.

When the rear-row parking device also faces the doorway, the structure of the first or second front-row parking device of the present invention may be appropriately adopted depending on the position of the doorway.

〔Example〕

An embodiment of the device according to the present invention will be described below with reference to the drawings.

FIG. 15 is a front view showing an embodiment of the device of the present invention, and FIG. 15 (a) shows the case where the cage 12 of the front-row parking device is stopped at the position of the doorway 5, and FIG. 15 (b). Represents the case where the cage 12 of the front row parking device is not present at the position of the doorway 5. FIG. 16 is a plan view showing an embodiment of the device of the present invention,
FIG. 16 (a) is a plan view of FIG. 15 (a), FIG. 16 (b) is a plan view of FIG. 15 (b), and FIG. 16 (c) is a roadway in FIG. 16 (b). It is a top view showing the state at the time of moving a car into and out of a plate. FIG. 17 is a principle view showing an example of the structure and drive mechanism of the roadway plate according to the present invention, FIG. 18 is an enlarged plan view of the roadway plate according to the present invention, and FIG. 19 is IV-IV in FIG. It is a line sectional view. In the figure, the same reference numerals as those in FIGS. 1 to 13 designate the same components, 71,7
Reference numeral 1'denotes a carriage which is guided by guide rails 61, 61 'via rollers 71a, 71'a and moves in interlocking movement in opposite directions. Both ends of the carriage are parallel to the guide rails 61, 61'. 71b, 7
1'b has a U-shape in a portion where the carriages 71 and 71 'face each other so as to have a space 71c enough to allow the turning frame 50 of the elevating traverse turning device 100 installed in the pit 21 to enter and exit. Has been formed. 72 and 72 'are roadway plates according to the present invention, and holes 71d and 7
Pins 72a, 7 which are held on the carriages 71, 71 'by being fitted in and removed from 1'd
2'a is provided, and projections 72b, 72'b and holes 72c, 72'c are provided on the surfaces where the roadway plates 72 and 72 'face each other, and the projection 72' is provided in the hole 72c. d, hole 72'c has a protrusion 7
2b are respectively inserted and removed so that the roadway plates 72 and 72 'are integrated or separated. 73 is an extension piece 7 extending downward at one end of the rear surface of the carriage 71, 71 '.
A chain in which 1e and 71'e are connected endlessly, as shown in FIG. 17, a sprocket 74 rotatably provided near the lower ends of the guide rail 61 and a rotatably provided in the pit 21. It is wound around the sprockets 75 and 76 that are attached. 77 is a chain that is endlessly wound around a sprocket 78a of a geared motor 78 fixed in the pit 21 and a sprocket (not shown) coaxial with the sprocket 76, and 79 is a stopper provided on the guide rail 61 or the like. is there.

Next, the operation of the device of the present invention will be described.

First, when the front-row parking device is operating or the cage 12 of the front-row parking device is stopped at the position of the doorway 5, the roadway plates 72, 72 'are mounted on the carriages 71, 71', and the geared motor is used. Since the chain 73 rotates counterclockwise in FIG. 17 via the chain 77 and the sprocket 76 by 78, it is retracted to the left and right as shown in FIGS. 15 (a), 16 (a) and 17 It is possible to freely circulate the cage 12 of the front-row parking device vertically like a normal pallet removable parking device, and as shown by the chain double-dashed line in FIG. In addition, if the pallet 10 is swung by the well-known lift traverse swivel device 100 so as to be placed on the road plate 72, 72 ', it is possible to freely load and unload the vehicle. When the loading and unloading of the automobile is completed, the pallet 10 can be returned to its original state by turning 90 degrees to the position shown by the solid line in FIG.

Next, when the vehicle is loaded into or unloaded from the rear-row parking device, the notch of the cage 12 of the front-row parking device is located at the doorway 5, and the roadway plates 72 and 72 'together with the carriages 71 and 71' are connected to the guard motor. By rotating the chain 73 in the clockwise direction in FIG. 17 via the chain 77 and the sprocket 76 by 78, the guide rails 61 and 61 'are guided, respectively, and the carriages 71 and 71' hit the stopper 79 at the center of the pit. The pulling protrusions 72b, 72'b and the holes 72c, 72'c are engaged with each other and integrated as shown in FIG. 16 (b). In this state, the vehicle can be mounted on the roadway plates 72, 72 'in a forward direction from the cage 13 of the rear-row parking device. Then, this time, the up / down traverse turning device 100 is used to drive the roadway plate 72,
72 'is lifted and turned 90 ° to the state shown in Fig. 16 (c). In this state, if the back side of the entrance / exit 5 side and the back side of the roadway plate are supported by projections or the like (not shown), the car can get on the roadway plate 72, 72 ′ from the entrance / exit 5 or the roadway plate Car entrance and exit 5 from 72,72 '
You can go out and do whatever you want. And the roadway plate 72 integrated by the lifting traverse turning device 100,
When the 72 'is turned in the opposite direction from the state shown in Fig. 16 (c) to the state shown in Fig. 16 (b), the vehicle on the roadway plates 72, 72' is stored in the cage 13 of the rear-row parking device in a forward direction. You can also do it.

〔The invention's effect〕

With such a configuration, even a road portion of the front-row parking device can be freely turned by a well-known lifting traverse turning device, so that even if a doorway is provided in a special vertical row provided on the side surface of the front-row parking device. Even in the case of the parking system, vehicles can be efficiently put in and out of the rear parking system.

Next, another embodiment of the device according to the present invention will be described.

FIG. 20 is a plan view showing another embodiment of the device of the present invention,
FIG. 21 is an enlarged plan view of the front-row parking device in FIG. 20, and FIG. 22 is a sectional view taken along the line VV in FIG. 21, in which the same reference numerals as those in FIGS. 1 to 19 are the same. 80 is a turntable provided in the pit 21 of the front-row parking device so as to be able to move up and down by a mechanism described later,
The central portion has an opening 80a through which the revolving frame 50 (that is, the portion that engages with the pallet 10) of the well-known ascending / descending traverse revolving device 100 can pass, and mainly an annular elevating frame having a space 81a inside. 81, a circular revolving frame 82 that also has a space 82a inside, and the aforementioned opening 80a in the center, and the opening 8 that traverses the space 82a.
It is composed of, for example, a self-propelled transverse plate 83, 83 'that opens and closes 0a. Reference numeral 84 is a motor provided in the pit 21 of the front-row parking device, and rotates a gear 84a fixed to the motor shaft. Reference numeral 85 is a motion conversion device provided at four corners in the pit 21 of the front-row parking device, such as a screw jack having a gear 85a for converting rotational motion into linear motion, and the lifting frame 81 described above is the motion conversion device. Supported by. Reference numeral 86 denotes a gear rotatably provided in the pit 21, and the tension of a chain 87 endlessly wound around the gear 85a of the motion conversion device 85, the gear 84a of the motor 84, and the gear 86 can be adjusted. Although not shown, it is movably attached. Rollers 88 and 89 are rotatably provided inside the space 81a of the elevating frame 81, and the rotating frame 82 is supported by the rollers 88 and 89. And this roller 88, 89
One of the two is a driving roller driven by a driving device (not shown) as in the case of a normal turntable. A guide roller 90 is also provided rotatably on the inner side of the space 81a of the elevating frame 81 to guide the swivel frame 82 so that the swivel frame 82 can smoothly rotate. 91
Is a guide rail provided inside the space 82a of the revolving frame 82 so as to be able to move up and down, for example, via a lift lifter 92. The guide rail 91 guides the rollers 83a and 83'a to move the traverse plates 83 and 83 '. You can do it. Then, in the pit 21, the conventional vertical traverse turning device shown in FIG.
100 are provided. When the entrance / exit 5 faces only the front row parking device, the conventional rear pallet removable mechanical parking device may be used as the rear parking device. Since the same processing can be performed, the description is omitted.

Next, the operation of the device of the present invention will be described.

First, during operation of the front-row parking device, as shown in FIGS. 22 and 23, the turntable 80 and the vertical traverse turning device 100 are turned on and off.
Since both are in the lowered position in the pit 21, the cage 12 of the front-row parking device can freely perform vertical circulation operation.

Next, when the car is put in the cage 12 of the front-row parking device, first, an appropriate empty cage of the front-row parking device is stopped at the position of the doorway 5. Then, the turning frame 50 of the elevation traverse turning device 100 provided in the pit 21 is attached to the turntable 8
The pallet 10 of the empty space 12 is lifted by passing through the opening 80a of 0 and lifted and rotated by 90 ° to the state shown in FIG. In this state, the automobile 95 can be freely placed on the pallet 10 from the doorway 5 as shown in FIG. 24. After the placement, the revolving frame 50 is rotated 90 ° together with the pallet 10 to turn the turntable 80. When passing through the opening 80a and lowered, the pallet 10 on which the vehicle is placed is placed in the cage frame of the front-row parking device, and the pallet 10 of the front-row parking device is loaded.
12 can be freely vertically circulated. When the vehicle is to be unloaded, if the pallet 10 is rotated in the same manner, the unloaded operation can be easily performed.

Next, when the vehicle is to be stored in the cage 13 of the rear-row parking device, first, the notch portion of the cage 12 of the front-row parking device is connected to the doorway 5
And bring the appropriate empty cage of the rear-row parking device to the lowest position. And this time the motor
Drive 84 to rotate gear 84a, chain 87, gear 85a
The motion conversion device 85 is operated via the to raise the elevating frame 81 to the boarding height position of the doorway 5. After that, the traverse plates 83, 83 'are self-propelled along the guide rails 91 to close the openings 80a, and the lifting lifters 92 are operated,
Raise the traverse plates 83, 83 ', and finally, as shown in FIG. 25, align the height positions of all the surfaces of the turntable 80 with the boarding height position of the doorway 5, and make the pit 21 almost completely. To cover. In this state, the vehicle can be freely placed on the turntable 80 from the doorway 5, and after the vehicle is placed, one of the rollers 88 or 89 is actuated to turn the turning frame 82 90 ° with the vehicle. As shown in FIG. 26, the front end of the automobile 95 is attached to the cage 13 of the rear-row parking device.
Point in the direction of. Then, the automobile 95 can freely enter the cage 13 of the rear-row parking device.

Next, when the vehicle of the rear-row parking device is to be unloaded, the vertical traverse device 100 of the rear-row parking device reverses the direction of the vehicle to face the front-row parking device, and then the entry position of the doorway 5 The vehicle is moved onto the turntable 80 which has been raised to the position, and the driving roller 88 or 89 turns the revolving frame 82 90 degrees together with the vehicle so that the front end of the vehicle is directed toward the doorway 5. In this state, the vehicle can be freely unloaded to the doorway 5, and thereafter the guide rail 91 is lowered together with the traverse plates 83 and 83 'by the lift lifter 92, and the motor 84 is used by the motion conversion device 85 to move the lift frame. 81 is lowered, then traverse plate by self-propelled
If the openings 83a are formed by distancing 83, 83 'from each other to the left and right, the initial state shown in FIG. 22 can be restored.

〔The invention's effect〕

If a turntable that can be moved up and down independently of the conventional traverse swing device is provided in this way, even if the doorway facing the front row parking device is on the side of the parking device, it can be freely moved inside the parking device. Since the direction of the vehicle can be changed, it is possible to obtain a tandem parking apparatus capable of efficiently and safely entering and leaving the vehicle.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a tandem parking system showing an embodiment of the device of the present invention, FIG. 2 is a side view of a conventional pallet removable mechanical parking system, and FIG. 3 is an I-I of FIG. FIG. 4 is a perspective view of the elevation traverse turning device in FIG. 2 and FIG. 3, FIG. 5 and FIG. 6 are plan views showing the type of the parallel parking device, and FIG. FIG. 8 is a plan view of the cage frame in FIGS. 3 and 4, FIG. 8 is an overall perspective view showing a case where only the cage of the rear-row parking device is stopped at the entrance / exit position in the device of the present invention, and FIG. 9 is II- of FIG. II sectional view, FIG. 10 shows No. 8
FIG. 11 is a sectional view taken along the line III-III in FIG. 11, FIG. 11 is a sectional view showing a state where the pallet of the cage of the front-row parking device is swung in FIG. 9, and FIG. 12 is an enlarged plan view of the road plate, FIG. Is a side view of FIG. 12, FIG. 14 is an explanatory view for explaining the second problem according to the present invention, and FIG. 15 is a front view of a parallel parking system showing an embodiment of the present invention device. FIG. 15 (a) shows the case where the cage of the front row parking device is stopped at the entrance / exit position, and FIG. 15 (b) shows the case where the cage of the front row parking device is not present at the entrance / exit position. FIG. 16 is a plan view showing an embodiment of the device of the present invention, FIG. 16 (a) is a plan view of FIG. 15 (a), and FIG. 16 (b) is a plan view of FIG. 15 (b). , FIG. 16 (c) shows a state in which a vehicle is put in and taken out of the roadway plate in FIG. 16 (b). FIG. 17 is a principle diagram showing an example of a structure of a road plate and a drive mechanism according to the present invention,
FIG. 18 is an enlarged plan view of a road plate according to the present invention,
19 is a sectional view taken along the line IV-IV in FIG. 18, FIG. 20 is a plan view showing another embodiment of the device of the present invention, FIG. 21 is an enlarged plan view of a portion of the front row parking device in FIG. 20, Figure 22 is number 21
The sectional view taken along the line V-V in FIG. 23, FIG. 23, FIG. 24 and FIG. 26 are transverse sectional views of the tandem parking system according to the present invention, and FIG. 23 shows that the cage of the front parking system is stopped at the entrance / exit position. Alternatively, FIG. 24 shows a state in which a vehicle is in and out of the cage of the front row parking device, and FIG. 26 shows a state in which a vehicle is in and out of the cage of the rear row parking device. FIG. 25 is a cross-sectional view of the turntable showing a state in which the turntable according to the present invention operates. 1 ... Parking facility 5 ... Gateway 10 ... Vehicle pallet 12 ... Cage for front row parking device 13 ... Cage for rear row parking device 100 ... Elevating and traversing device 62,62 ', 72,72' ... Road plate 21 ... Pit 95 … Car 71,71 ′… Bogie 80… Turntable 81… Elevation frame 50,82… Swivel frame 83,83 ′… Transverse plate

Claims (9)

[Claims] 1. A tandem parking apparatus comprising a front row parking apparatus facing an entrance and a rear row parking apparatus, wherein a cage of the front row parking apparatus is provided with a pallet for mounting a vehicle on a cage frame in a removable manner. In the pit of the device, an elevating traverse turning device having a turning part for lifting and turning the vehicle-mounted pallet is provided, and a guide member in the lateral direction is provided above the elevating traverse device with a space allowing the turning part to move in and out. A pallet-detachable mechanical parking device characterized in that the lanes are laid respectively, and the roadway plate is movably provided by being guided by the guide member. 2. A tandem parking apparatus comprising a front-row parking apparatus facing an entrance and a rear-row parking apparatus, wherein a cage of the front-row parking apparatus is provided with a pallet for mounting a vehicle on a cage frame in a removable manner. In the pit of the device, an elevating traverse turning device having a turning part for lifting and turning the vehicle-mounted pallet is provided, and above the elevating traverse turning device, guide members are provided at intervals so that the turning part can move in and out. A trolley that is laid down and is guided by the guide member to move is provided on the guide member, and a roadway plate is detachably provided on the trolley, and the trolley includes the turning portion of the elevating traverse turning device. A pallet-detachable mechanical parking device characterized by having a space for entry and exit. 3. The pallet detachable mechanical parking apparatus according to claim 1 or 2, wherein the guide member is a guide rail. 4. A tandem parking apparatus comprising a front-row parking apparatus facing an entrance and a rear-row parking apparatus, wherein a cage of the front-row parking apparatus is provided with a pallet for mounting a vehicle on a cage frame in a removable manner. In the pit of the device, an elevating traverse device having a revolving part for lifting and revolving the vehicle-mounted pallet, and a turntable that can be raised and lowered are provided, and the central part of the turntable has the elevating traverse device. A pallet-detachable mechanical parking device, which has an opening through which parts come in and go out. 5. The pallet removable mechanical parking apparatus according to claim 4, wherein the turntable is provided with a mechanism for closing the opening. 6. A cage of a rear-row parking device is provided with a pallet for mounting a vehicle on a cage frame in a removable manner, and a pit of the rear-parking device has a swinging portion for lifting and swinging the pallet for mounting the vehicle. The pallet detachable mechanical parking apparatus according to claim 1, claim 2, or claim 4, wherein a device is provided. 7. When the rear-row parking device also faces the doorway, the cage of the rear-row parking device is provided with a pallet for mounting the vehicle on a cage frame in a detachable manner, and the pallet for mounting the vehicle in the pit of the rear-row parking device. An elevating and traversing device having a revolving unit for lifting and revolving is provided, and guide members are laid in the lateral direction above the elevating and traversing device at intervals so that the revolving unit can move in and out, and the guide member is guided. The pallet detachable mechanical parking apparatus according to claim 1, claim 2 or claim 4, wherein the roadway plate is movably provided. 8. When the rear-row parking device also faces the entrance / exit, the cage of the rear-row parking device is provided with a pallet for mounting the vehicle on a cage frame in a detachable manner, and the pit for the front-row parking device is mounted on the pallet for mounting the vehicle. An elevating traverse swivel device having a swivel part for lifting and swiveling the hoisting device is provided, and guide members are laid above the elevating traverse swivel device at intervals so that the swivel part can move in and out. A trolley provided to be moved by being guided by a guide member is provided, a roadway plate is detachably provided on the trolley, and the trolley has a space through which the swivel part of the elevating and traversing device can move in and out. A pallet detachable mechanical parking apparatus according to claim 1, claim 2 or claim 4. 9. When the rear-row parking device also faces the doorway, the cage of the rear-row parking device is provided with a pallet for mounting a vehicle on a cage frame in a removable manner, and the pallet for mounting the vehicle is mounted in a pit of the rear-row parking device. An elevating traverse swivel device having a swivel part for lifting and swiveling a turntable, and a turntable capable of elevating and lowering are provided, and an opening part through which the swivel part of the elevating traverse device turns in and out is provided in a central portion of the turntable. The pallet-detachable mechanical parking device according to claim 1, claim 2, or claim 4.