JPH094263A - Pallet-fall preventive device for mechanical type parking facility - Google Patents

Abstract

PURPOSE: To lower the whole height of facilities by controlling movement to an upper section of a pallet on a parking rack, regulating movement in the direction of the transfer of the pallet on the parking rack and restraining movement in the direction orthogonal to the direction of the transfer of the pallet on the parking rack. CONSTITUTION: In a pallet P at the place of the completion of the delivery from a lifting-lowering base to a parking rack 3, upward movement is controlled by an upward control means 61, movement in the direction of transfer is regulated by a transfer-direction control means 62, and movement in the direction orthogonal to the direction of transfer is restrained by an orthogonal-direction control means. Consequently, when vibrational load in the horizontal direction, etc., acts on the pallet P, the horizontal displacement of the pallet P on the parking rack 3 is controlled, and the falling of the pallet P at the time of load action from the horizontal direction is prevented. The transfer-direction control means 62 follows up to the movement of the pallet P even to the slight vertical movement of the pallet P, and engagement between the abutting section 65e of the second control means 2b and a wheel track section Pa on the anti-lifting-lowering path side of the pallet P is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents a pallet from falling from a parking rack in a mechanical parking facility in which a vehicle is transferred between the pallet and a parking rack by a slide fork between the elevator and the parking rack. Pallet drop prevention device.

[0002]

2. Description of the Related Art Generally, in a mechanical parking facility, an elevating table for mounting a pallet on which a vehicle is mounted, an elevating device for elevating the elevating table along a hoistway by a string member such as a chain, and the above elevating table. Are arranged in layers next to the hoistway,
A plurality of parking shelves for accommodating vehicles together with a pallet, and an extendable telescopic slide fork that is provided on the elevating table and horizontally transfers the pallet between the elevating table side parking shelves and a pallet transfer. Sometimes equipped with a vertical displacement means for vertically moving the elevator with the elevator or vertically displacing only the slide fork with a jack, etc., and with the elevator stopped to the side of the parking rack, the pallet is moved from the elevator to the parking rack. At the time of delivery, the pallet mounting level of the lifting platform is higher than the loading level of the parking shelf, the slide fork is extended to transfer the pallet to the parking shelf, and then the pallet loading level of the lifting platform is higher than the loading level of the parking shelf. The pallet is moved to a lower position to transfer the pallet to the parking rack, while the pallet is transferred from the parking rack to the lifting platform. The slide fork is extended at a position lower than the loading level of the parking rack, and then the pallet loading level of the elevator is moved to a position higher than the loading level of the parking rack to slide the pallet on the parking rack. After being lifted by a fork, the slide fork is contracted to transfer the pallet to the lift table.

And, in such a mechanical parking facility,
Equipped with a pallet drop prevention device that prevents pallets from falling from the top of the parking rack. In the pallet drop prevention device, a convex stopper extending in a direction orthogonal to the pallet transfer direction is provided on a parking shelf, and a recessed portion that extends in the pallet in a direction orthogonal to the transfer direction and is engageable with the stopper. When the pallet is delivered, that is, when the extended slide fork (the pallet mounting level of the lift) is positioned from a position higher than the mounting level of the parking shelf to a lower position and the pallet is lowered onto the parking shelf, By engaging the recesses of the pallet with the stoppers of the parking rack, the movement of the pallet in the transfer direction is regulated.

[0004]

However, in the case where the movement of the pallet in the transfer direction is restricted by utilizing the vertical displacement operation of the slide fork as described above, when the vehicle is delivered, the slide fork (pallet) is on the parking rack. Since it is necessary to increase the vertical displacement of the slide fork so as not to interfere with the stopper of the above, the arrangement pitch between the upper and lower parking shelves naturally becomes large, and the height of the entire mechanical parking facility increases. Have

Therefore, for example, as disclosed in Japanese Utility Model Publication No. 4-17728, a first restricting piece for restricting the movement of the pallet to the side opposite to the hoistway is provided on the parking shelf and is orthogonal to the transfer direction of the pallet. A second restricting piece that opposes both ends and restricts the movement of the pallet in a direction orthogonal to the transfer direction, and a third restricting piece that restricts the movement of the pallet to the hoistway side are provided. By lowering the height of the restriction piece to be smaller than the height of the pallet to reduce the vertical displacement of the slide fork, the pitch between the upper and lower parking shelves can be reduced to lower the overall height of the mechanical parking facility. A pallet fall prevention device configured to do so has been conventionally known.

However, even in the above-described pallet drop prevention device, although the pallet is prevented from falling by restricting the movement of the pallet in the transfer direction (hoistway side and counter hoistway side) and in the direction orthogonal thereto, the pallet is prevented. If the pallet is not regulated in the vertical direction and a vibration load is applied to the pallet from the vertical direction of the pallet, the locking of the pallet by the regulation pieces may be released and the pallet may float from the parking rack. Moreover, considering that a fairly large vibration load in the vertical direction acts on the pallet due to a direct earthquake, there is a risk that the pallet will easily overrun the third restriction piece having a low height and fall. Even if a large vibration load is applied, it is highly necessary to restrain the pallets in the vertical direction on the parking shelves, and improvement of the pallet fall prevention device has been earnestly desired.

The present invention has been made in view of the above points, and an object thereof is to regulate not only the movement of the pallet in the transfer direction and the direction orthogonal to the transfer direction but also the movement in the vertical direction. By doing so, it is possible to reliably prevent the pallet from falling when a vibration load in the horizontal direction (the transfer direction and the direction orthogonal thereto) and the vertical direction is applied to the pallet while reducing the arrangement pitch between the upper and lower parking shelves. To do.

[0008]

In order to achieve the above-mentioned object, a solution means provided by the invention as claimed in claim 1 is a pallet drop preventing device for a mechanical parking facility, in which a pallet on which a vehicle is placed is installed along a hoistway. And a plurality of parking shelves, which are arranged in layers adjacent to the hoistway of the hoist, and each house a vehicle together with a pallet, and the hoist provided on the hoist, and the parking on the side of the hoist An extendable slide fork that horizontally transfers the pallet to and from the shelf,
The slide fork is provided between the lift table and the parking shelf, and includes vertical displacement means for vertically shifting the slide fork when the pallet is transferred, and the slide fork with the lift table stopped laterally of the parking shelf. It is premised on a mechanical parking facility in which the vehicle is transferred together with the pallet between the elevating table and the parking rack by expanding and contracting and vertically displacing the vehicle. And an upper restricting means for restricting upward movement of the pallet on the parking shelf when the pallet is transferred from the elevator to the parking shelf by the slide fork, and a transfer direction of the pallet on the parking shelf. And a perpendicular direction regulating means for regulating the movement of the pallet in the direction orthogonal to the conveying direction on the parking rack.

The solution taken by the invention according to claim 2 is as follows.
The upper regulating means of the invention according to claim 1 is provided at a portion that does not hinder the delivery of the pallet and at a portion that can reliably regulate the upward movement of the pallet, and specifically, the upper regulating means. Means are provided so as not to overlap with the pallet and the parking rack when viewed from the transfer direction during transfer of the pallet (that is, so as not to interfere with each other), and the pallet and the parking rack are viewed from the top and bottom at the pallet transfer completion position. The configuration is provided at positions where they overlap (that is, interfere with each other).

[0010] The solution taken by the invention of claim 3 is as follows.
It is an object of the present invention to simplify the configuration of the upper regulating means according to the second aspect of the present invention.
A shelf rail having supporting surfaces extending along the pallet transfer direction is provided on both end lower surfaces of the pallet so as to support the lower end surfaces of both ends of the pallet in a direction orthogonal to the pallet transfer direction. Further, the upper regulating means is provided with a hanging portion that hangs downward from both ends of the pallet, and a horizontal portion that extends horizontally from the lower end of the hanging portion toward the shelf rail side. The rail support surface is overlapped when viewed from above the support surface.

A solution taken by the invention according to claim 4 is as follows.
An orthogonal direction regulating means for regulating movement of the pallet in the orthogonal direction is constituted by using the constituent features of the invention according to claim 3, and specifically, the orthogonal direction regulating means is transferred onto each shelf rail. The movement of the pallet in the direction orthogonal to the transfer direction is regulated by the contact between the shelf rails and the hanging parts.

The solution taken by the invention described in claim 5 is as follows.
In addition to the constituent features of the invention according to claim 1, claim 3 or claim 4, the vertical direction displacement operation of the slide fork is used to operate the transfer direction regulating means,
Specifically, the transfer direction restricting means has a stopper member that restricts the movement of the pallet to the side opposite to the hoistway by contacting a locking tool provided on the pallet at the position where the transfer of the pallet to the parking rack is completed. When the pallet moves to the engaging position that engages the pallet so as to regulate the movement of the pallet to the hoistway side at the transfer completion position of the pallet to the parking rack, the engagement with the pallet is released during the transfer of the pallet. And a second restricting unit that operates at a retracted position for retracting. Then, the second restricting means is provided so as to move to the retracted position and the engagement position in accordance with the vertical displacement operation of the slide fork by the vertical displacement means.

Further, the solution means taken by the invention of claim 6 is intended to make the transfer direction restricting means of the invention of claim 5 inexpensive, and more specifically,
The locking tool of the pallet is specified so that it serves as the horizontal part of the upper regulating means.

[0014]

According to the above-mentioned structure, according to the first aspect of the present invention,
The pallet at the transfer completion position from the elevator to the parking rack is restricted from moving upward by the upper restricting means, restricted from moving in the transfer direction by the transfer direction restricting means, and further moved in the transfer direction by the orthogonal direction restricting means. Since the movement in the orthogonal direction is regulated, the horizontal movement of the pallet on the parking rack is regulated by the transfer direction regulation means and the orthogonal direction regulation means when a horizontal vibration load is applied to the pallet. The pallet is prevented from falling when a load is applied from the horizontal direction, and when a vertical oscillating load is applied to the pallet, the upward movement of the pallet on the parking rack is regulated by the upper regulating means so that the pallet is prevented from moving upward. The pallet is reliably prevented from rising from the top, and the pallet remains on the parking shelf even if a large vertical vibration load is applied due to a direct earthquake. Fall of the pallet is prevented when a load acting in the vertical direction is reliably restrained in a downward direction. Moreover, since the upward movement of the pallet is regulated by the upper regulation means, the regulation portion in the horizontal direction (the transfer direction and the direction orthogonal to the transfer direction) on the parking rack, for example, the stopper and the concave portion, etc. Even if the required height in the engaging direction (vertical direction) required to restrict the movement of the pallet in the horizontal direction by the concave-convex engagement is made low, mutual disengagement is sufficiently avoided. Therefore, the vertical height of the restriction portion of the horizontal direction regulation means (transportation direction regulation means and orthogonal direction regulation means) can be kept low, and the vertical displacement amount of the slide fork during the pallet transportation by the vertical displacement means can be reduced. Also, the interference with the regulation portion of the horizontal regulation means is reliably avoided.

According to the second aspect of the present invention, the upper regulating means does not overlap the pallet and the parking rack when viewed from the pallet transfer direction, and the pallet and the parking rack do not overlap when viewed from above and below at the pallet delivery completion position. Since it is provided at the wrapping position, the upward movement of the pallet can be easily regulated by contacting the pallet or the parking rack with the upper regulating means when the vibration load in the vertical direction is applied to the pallet. The structure of the restricting means can be simplified, and the upper restricting means is prevented from interfering with the parking rack or the pallet when the pallet is transferred, so that the pallet can be transferred smoothly.

According to the third aspect of the present invention, the upper restricting means is provided at a position where the horizontal part of the lower end of the hanging portion overlaps the supporting surface of the shelf rail when viewed from above the supporting surface. The upper regulating means has a simple fixed structure including a hanging portion and a horizontal portion, and in regulating the upward movement of the pallet, it is not necessary to move the upper regulating means with an actuator, a biasing means, etc. The cost increase can be suppressed in providing the.

According to the fourth aspect of the present invention, the orthogonal direction regulating means moves the pallet in a direction orthogonal to the transfer direction by contact between the shelf rails and the hanging portions at the delivery completion position of the pallet to the parking shelf. Since it is configured to regulate, the orthogonal regulation means is also used as the hanging portion of the upper regulation means, and it is not necessary to provide a separate member when providing the orthogonal regulation means.

According to the fifth aspect of the present invention, the pallet is moved to the side opposite to the hoistway by contact between the pallet locking tool and the stopper member of the first restricting means of the parking rack at the delivery completion position to the parking rack. On the other hand, the movement of the pallet to the hoistway side is regulated by the engagement of the second regulating means of the parking rack that moves from the retracted position to the engagement position at the delivery completion position of the pallet to the pallet. ing. In that case, the second restricting means is moved to the retracted position during the transfer to the parking rack and to the engagement position at the transfer completion position to the parking rack in accordance with the vertical displacement operation of the slide fork by the vertical displacement means. Since the second restricting means is reliably prevented from engaging with the pallet during transfer of the pallet and the pallet can be moved smoothly, the pallet can be reliably engaged with the pallet at the delivery completion position. Along with the regulation of the movement of the pallet to the side opposite the hoistway by the first regulation means, the movement of the pallet in the transfer direction is regulated reliably. Moreover, since the operation of the second restricting means is performed in association with the vertical displacement operation of the slide fork,
It is not necessary to separately provide an actuator or a biasing means for operating the second restricting means between the two positions, and it is possible to suppress an increase in cost when providing the second restricting means.

Further, in the invention of claim 6, since the pallet locking tool also serves as the horizontal portion of the upper regulating means, it is not necessary to separately provide the locking tool, and the number of parts is reduced.

[0020]

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

FIG. 16 shows an elevator type multi-level parking facility A of a lower entry type as a mechanical parking facility according to an embodiment of the present invention. In the figure, 1 is a building, 2, ...
A plurality of storage spaces provided in a hierarchical manner on the left and right sides of the space excluding the lower end portion and the upper end portion inside the building 1, and a parking rack 3 is installed in each of the storage spaces 2 and A pallet P, on which the vehicle C is mounted, is placed at 3.

The storage spaces 2 and 2 on both the left and right sides are provided adjacent to a hoistway 4 extending in the vertical direction. In the hoistway 4, an elevator platform 6 that constitutes an elevator 5 has four corners formed by wire ropes 7. , Is arranged so that it can be lifted and lowered so as to be connected to one end of the parking rack 3. When moving in and out, the lifting platform 6 is raised to the side of the target parking rack 3 so that the vehicle C can be moved between the parking rack 3 and the parking rack 3. The pallet P is delivered (transferred) together. In addition, 8 ... Is a driven pulley, 9 is a driving pulley driven by a motor (not shown), 10 is a balance weight connected to the other end of each wire rope 7, and each driven pulley 8 and driving pulley 9 are the building 1 A machine room 11 is installed in the machine room 11 with a space of an upper end portion inside.

At the lower end of the building 1, there is formed a loading / unloading port 12 for loading and unloading the vehicle C, and a vehicle loading / unloading space 13 following the hoistway 4 is provided at the back of the loading / unloading port 12. ing. A pit 14 is recessed on the floor surface at the lower end of the hoistway 4, and a vehicle turning device 17 having a turntable 16 provided on a base body 15 is installed in the pit 14, and the vehicle turning device 17 operates. Thus, the direction of the vehicle C that has entered the pallet P on the turntable 16 is changed using the loading / unloading space 13. Then, the elevator 5 and the vehicle turning device 17
As a result, an elevator type multi-level parking device B for loading and unloading the vehicle C is configured.

Further, as shown in FIGS. 1 and 9 to 12, the building 1 has four columns 18, which are erected on the ground.
, And a steel frame structure assembled by ropes such as a large number of beams 19 horizontally bridged between adjacent columns 18, 18, and an exterior panel provided outside the steel frame structure. (Not shown) and the like, and each of the parking shelves 3 supports each storage space 2 so as to support the lower and front end surfaces of the pallet P in the direction orthogonal to the transfer direction of the pallet P.
Two shelf rails 3a, 3 installed horizontally on both sides of the
The two shelf rails 3a are formed in a substantially U-shaped cross section with their backs facing each other and opening outward. The upper surface of each shelf rail 3a is a support surface 3 that extends from the front and rear lower surfaces of the pallet P along the transfer direction of the pallet P.
b. 9 and 10, reference numeral 20 denotes a shelf column to which one end of each shelf rail 3a is attached.

The lifting table 6 includes two vertical frames 21,
21 and two horizontal frames 22, 22 are provided with a lifting table body 23, and in the middle of the lifting table body 23, two vertical frames 24, 24 and two horizontal frames 2 are provided.
A support frame 26 framed with 5, 25 is a lift table main body 23.
A receiving portion 27 that is mounted so as to be movable upward with respect to the support frame 26 and that mounts and supports the pallet P between the vehicle turning device 17 and the four corners when the vehicle C is turned by the vehicle turning device 17. ... is attached. Support frames 28, 28 are attached to the front and rear ends of the lift main body 23, one end of each wire rope 7 is connected to both ends of each support frame 28, and the lift 6 is suspended and supported in the hoistway 4. ing. Guide rollers 29, 29 are supported on both ends of each of the support frames 28 via brackets 30, and each of the guide rollers 29 engages with the flange 20a of the H-shaped rope, which is each of the shelf posts 20, to raise and lower the platform 6. The flange 20a is adapted to roll in the vertical direction in accordance with the ascending / descending operation of. In addition, on the front side (lower end in FIG. 9), which is the vehicle entry side of the lift table main body 23, there is provided a boarding / alighting deck 31 on which the vehicle C and a person get in and out.

Inside the both supporting frames 28, 28 of the lifting table 6 (elevating table main body 23), a pair of horizontally movable slide forks 32, 32 are arranged, and the lifting table 6 slides on both slides. The vehicle C is mounted on the forks 32, 32 together with the pallet P to move up and down the hoistway 4.

Each of the slide forks 32 is provided with a base fork 33 fixed to the vertical frames 21 and 21 of the lifting table body 23, and the base fork 33 has two base frames 33a and 33a arranged in parallel. Are connected by a plate 33b, and a plurality of guide rollers 34, 35 are mounted on the inside of each base frame 33a so as to be rotatable at predetermined intervals.

A middle fork 36 is movably supported on the upper part of the base fork 33. The middle fork 36 connects two middle frames 36a, 36a having a substantially I-shaped cross section by a plate 36b. The two middle frames 36a are guided by the guide rollers 34, 35 of the base fork 33 to move back and forth with respect to the base fork 33.

The middle fork 36 movably supports a top fork 37 on which an empty pallet P or a vehicle-mounted pallet P is mounted, and the top forks 37 are arranged in parallel so as to face each other. The upper surfaces of two substantially C-shaped top frames 37a, 37a are connected by a support plate 37c. Like the base fork 33, a plurality of guide rollers 34, 35 are mounted on both sides of the top fork 37 so as to be rotatable at predetermined intervals, and the top fork 37 moves forward and backward with respect to the middle fork 36. Is guided by the guide rollers 34 and 35. Further, the upper surface of the support plate 37c is located above the upper surface of the middle fork 36, and the upper surface of the support plate 37c is in contact with the lower surface of the pallet P (the lower surface of a rut portion Pa described later). Pallet P
Is supported in the mounted state.

As shown in FIG. 13, three sprocket wheels 3 are provided on the back side of each base fork 33.
8, 39, 40 are arranged, and the respective sprockets 38, 3 are arranged.
A chain 41 is wound around the shafts 9, 40, and both ends of the chain 41 are connected to the front and rear ends of the middle fork 36, respectively. In addition, the above-mentioned middle fork 36
Two sprockets 42 and 43 are arranged on the back side of the
A chain 44 is wound around the sprocket 42 on the tip end side, and both ends of the chain 44 are connected to the base ends of the base fork 33 and the top fork 37, respectively, while the sprocket 43 on the other base end side is connected. Another chain 45 is wound around, and one end of the chain 45 is connected to the base fork 33 and the top fork 3.
7 are respectively connected to the tips.

Both ends of a shaft 46 are connected to the sprockets 38, 38 of the pair of base forks 33, 33, and a driven sprocket 47 is attached to the shaft 46, while the lift table body of the lift table 6 is mounted. A drive motor 48 having a drive sprocket 49 attached to an output shaft 48 a is installed on the drive shaft 23.
An endless chain 50 is wound around the driven sprocket 9 and the driven sprocket 47. Then, when the vehicle C (pallet P) is carried in and out, the lifting platform 6 is stopped to the side of the parking shelf 3, and the three chains 41, 44, 45 are caused to run by the forward / reverse operation of the drive motor 48. As a result, the middle fork 36 and the top fork 37 are moved forward and backward on one side of the parking shelves 3, 3 on both sides thereof, and this forward / backward movement, that is, the expansion / contraction operation of the slide fork 32 and the vertical movement by the vertical movement mechanism (positioning device 57) described later are performed. The vehicle C (pallet P) is transferred between the lift table 6 and the parking rack 3.

A plurality of rollable rollers 51 are attached to the two shelves 20, 20 on the side of each of the parking shelves 3 by mounting brackets 52 corresponding to each of the parking shelves 3, while on the other hand, on the side of the lift table 6 described above. A slide guide 53 is attached to both ends of the front and rear support frames 28, 28, and a fluid pressure cylinder 54 is installed at the base end of each slide guide 53. Further, as shown in enlarged detail in FIGS. 14 and 15, a plate-shaped guide member 55 is connected to the tip of a piston rod 54a extending in the horizontal direction of the fluid pressure cylinder 54 by a coupling fitting 55a. 5
The guide member 55 is horizontally moved along the upper and lower guide grooves 53a, 53a of the slide guide 53 by the expansion and contraction operation of 4.

A guide groove 56 for engaging and guiding the roller 51 is formed at the tip of the guide member 55, and the guide groove 5 is formed.
6 is a first guide groove portion 56a extending in the horizontal direction and the first guide groove portion 56a.
A second guide groove portion 56b which is continuous with the guide groove portion 56a and extends obliquely downward toward the inside of the groove;
At the open end of 6a, an inclined surface 56c for increasing the groove width outward is formed.

Further, the roller 51, the guide member 55 and the fluid pressure cylinder 54 constitute a positioning device 57 as a vertically displacing means. The positioning device 57 has a side of the parking shelf 3 on which the vehicle C is to be carried in and out, and its side. Two parking spaces are provided on the opposite side to the parking shelf 3 side with a predetermined interval.
Then, in a state where the lifting platform 6 is stopped to the side of the parking shelf 3,
The four guide members 55, ... At the four corners of the lift table 6 are advanced by the synchronous extension operation of each fluid pressure cylinder 54, and the roller 51 is moved by the inclined surface 56c of the guide groove 56 as a guide along with the extension operation. By engaging with the first guide groove 56a, as shown in FIG. 7, the vehicle mounting level Lf of both slide forks 32 is displaced to a position lower than the vehicle mounting level Lt of the parking shelf 3, and further this positioning is performed. From the state, the guide member 55 is advanced by the synchronous extension operation of each fluid pressure cylinder 54 to engage the roller 51 with the second guide groove portion 56b of the guide member 55, whereby the vehicle mounting level Lf of both slide forks 32 is set. Is displaced to a position higher than the vehicle mounting level Lt of the parking shelf 3, whereby the lifting platform 6 is positioned in two stages in the vertical direction. That.

Next, a procedure for loading and unloading the vehicle C in the elevator type multi-level parking facility A will be described with reference to FIGS. 7 and 8.

First, the case where the vehicle C is stored in FIG. 7 will be described. An empty pallet P on the elevator platform 6 of the elevator 5 waiting for the descending movement of the storage vehicle C that has entered the vehicle storage space 13 from the storage opening 12 Vehicle turning device 1 so that the passenger can get in the vehicle and exit the vehicle in preparation for exit.
After the direction of the vehicle C is changed by the operation of 7, the elevating table 6 is raised to the side of the intended parking rack 3 to store the vehicle, as shown in FIG. In this state, the vehicle mounting level Lf of the slide fork 32 is located below the vehicle mounting level Lt of the parking shelf 3 (shelf rail 3a). At this time, the four guide members 55, ... Provided at the four corners of the lifting table 6 are retracted so as not to interfere with the rollers 51 ,.

Then, as shown in FIG. 7B, the four fluid pressure cylinders 54, ... Are synchronously extended to move the four guide members 55 ,. The guide member 55 is advanced to the side, and is engaged with the second guide groove 56b through the first guide groove 56a of each guide member 55 at once. As a result, the vehicle mounting level Lf of each slide fork 32 becomes higher than the vehicle mounting level Lt of the parking shelf 3, and in this state, the lifting platform 6 is stably leveled from four sides by the four positioning devices 57, .... Positioned. In addition, at the initial stage of this engagement, the roller 51 moves the inclined surface 5 of the guide member 56.
6c, the roller 51 is guided to the first guide groove portion 56.
It can be smoothly and reliably engaged with the second guide groove portion 56b via a.

After that, as shown in FIG. 7C, both slide forks 32, 32 are extended by the drive of the drive motor 48, and the warehousing vehicle C is transferred to the storage space 2 together with the pallet P. At this time, since the slide forks 32 are positioned above the parking rack 3 with a distance as described above, interference with the parking rack 3 is prevented when the pallet P is transferred. Further, when both slide forks 32, 32 are extended together with the pallet P mounted on the vehicle, a tilting moment is generated in the lift table 6, but as described above, the lift table 6 is positioned by the positioning devices 57 ,. Therefore, the tilting moment is received by each positioning device 57 to prevent the elevator 6 from tilting, so that the warehousing vehicle C can be stably delivered between the elevator 6 and the parking rack 3.

Thereafter, as shown in FIG. 7D, the respective guide members 55 are retracted by the contraction operation of the respective fluid pressure cylinders 54, and the respective rollers 51 are moved from the second guide groove portions 56b of the respective guide members 55. The first guide groove 56a is switched and engaged. As a result, the vehicle mounting level Lf of each slide fork 32 becomes lower than the vehicle mounting level Lt of the parking shelf 3, and the stored vehicle C is delivered to the parking shelf 3 together with the pallet P. In this way, the vertical displacement of the slide fork 32 when the storage vehicle C is delivered is determined by the positioning device 57.
Since it is performed by the positioning operation of (1), it is not necessary to separately use an elevating means such as a jack, and the equipment cost can be reduced.

After that, as shown in FIG. 7 (e), both the slide forks 32, 32 are contracted by the driving of the drive motor 48, and then, as shown in FIG. 7 (f), each of the guide members. 55 is retracted by the contraction operation of each fluid pressure cylinder 54 to disengage each roller 51 from the guide groove 56,
Then, when there is a warehousing, the lifting platform 6 is lowered to the side of the vehicle loading / unloading space 13, while when there is a warehousing, the lifting platform 6 is moved to the parking shelf 3 in which the target unloading vehicle C is stored.
Up and down to the side of.

On the other hand, when the vehicle C is to be unloaded, FIG.
As shown in FIG. 1, first, the empty lift table 6 is moved up and down to the side of the parking shelf 3 where the exit vehicle C is parked. In this state, the vehicle mounting level Lf of the slide fork 32 is located below the vehicle mounting level Lt of the parking shelf 3.
At this time, as shown in FIG. 8A, the guide members 55 at the four corners of the lifting table 6 are retracted so as not to interfere with the rollers 51 on the parking shelf 3 side.

Then, as shown in FIG. 8B, the four fluid pressure cylinders 54, ...
.. are advanced to the parking shelves 3, 3 on both sides, and the rollers 5 are inserted into the first guide groove portions 56a of the respective guide members 55.
1 is engaged. As a result, the lift table 6 is stably positioned horizontally from four directions by the four positioning devices 57, .... At the initial stage of this engagement, the roller 51
Is guided by the inclined surface 56c of the guide groove 56, so that the roller 51 is smoothly and surely engaged with the first guide groove portion 56a.

Thereafter, as shown in FIG. 8C, both slide forks 32, 32 are extended by the drive of the drive motor 48. At this time, since the slide forks 32 are positioned below the parking shelf 3 with a distance as described above, interference with the parking shelf 3 is prevented when the pallet P is transferred.

Thereafter, as shown in FIG. 8D, the guide members 55 are further advanced by the expansion operation of the fluid pressure cylinders 54, and the rollers 51 are moved to the first guide groove portions 56a of the guide members 55. To the second guide groove 56b by switching. As a result, the vehicle mounting level Lf of each slide fork 32 becomes higher than the vehicle mounting level Lt of the parking shelf 3, and the unloading vehicle C is delivered to the slide fork 32 together with the pallet P. At this time, the slide fork 32
When the loading vehicle C is mounted, an overturning moment is generated in the lifting platform 6, but since the lifting platform 6 is positioned by the positioning devices 57, ... By preventing the elevator table 6 from being tilted by receiving it, the outgoing vehicle C can be stably delivered between the elevator table 6 and the parking shelf 3.

After that, as shown in FIG. 8 (e), after the slide forks 32, 32 are contracted by the drive motor 48 to transfer the unloading vehicle C to the lift table 6,
As shown in FIG. 8F, the guide members 55 are retracted by the contraction operation of the fluid pressure cylinders 54, and the rollers 51 are moved from the second guide groove portion 56b of the guide groove 56 to the first guide groove portion 56a. The elevator table 6 is removed at a stretch, the elevator table 6 is lowered to the side of the vehicle loading / unloading space 13, and the vehicle loading / unloading port 12 is withdrawn. When there is a subsequent delivery, the target delivery vehicle C is raised to the side of the parking shelf 3 in which it is stored and the delivery vehicle C is delivered in the same manner as described above. The storage vehicle C is installed in and the storage is carried out in the same manner as in the above storage.

As a characteristic part of the present invention, as shown in FIG. 1, between the pallet P and the parking rack 3, there is provided a pallet drop prevention device 60 for preventing the pallet from dropping from the parking rack 3. It is provided. The pallet fall prevention device 60 uses the slide fork 23 to move the pallet P
An upper restricting means 61 for restricting upward movement of the pallet P on the parking shelf 3 when the pallet P is transferred from the lift 6 to the parking shelf 3, and a transfer direction of the pallet P on the parking shelf 3. Transfer direction restricting means 62 for restricting movement to the hoistway side and counter hoistway side, and orthogonal direction restricting means 63 for restricting movement of the pallet P on the parking shelf 3 in a direction orthogonal to the transfer direction. Is equipped with. In addition, the pallet P is
A pair of left and right rut portions Pa, which roll the wheels of the vehicle C on the pallet P, and left and right ends of the pallet P, which are connected to the left and right outer sides of the rut portions Pa, are recessed upward. Concave portions Pb, Pb, and a central concave portion Pd that is connected to the inside of each of the rutted portions Pa in the left-right direction and has a substantially central portion of the pallet P concave upward in a substantially trapezoidal shape. Become.

The upper regulating means 61 is shown in FIGS.
As also shown in FIG. 5, the front and rear ends of the pallet and the rack rails 3a are provided at the overlapping portions where they overlap each other when viewed from above and below at the transfer completion position of the pallet P to the parking rack 3. Is a hanging portion 61a that hangs downward from both front and rear ends of the central recessed portion Pd of the pallet P,
The shelf rail 3a side (inward) from the lower end of the hanging part 61a
And a horizontal portion 61b extending in the horizontal direction toward
When the pallet P is transferred to the shelf rail 3a, the horizontal portion 61b overlaps the supporting surface 3b of the shelf rail 3a when viewed from above the supporting surface 3b. , The shelf rail 3 under the support surface 3b of the shelf rail 3a and during the transfer of the pallet P
Interference with a is prevented.

The orthogonal direction restricting means 63 is configured so as to serve as both the support surface 3b of each of the shelf rails 3a and the hanging portion 61a of the upper restricting means 61, and the pallet P transferred onto each of the shelf rails 3a. The movement in the direction orthogonal to the transfer direction is restricted by the contact between the outer end of the support surface 3b of each shelf rail 3a and the hanging portion 61a.

The transfer direction restricting means 62 is provided at a substantially central position of each shelf rail 3a, and at the transfer completion position of the pallet P to the parking shelf 3, the upper restricting means also serves as a locking tool for the pallet P. The first restricting means 62a having a rib-shaped stopper member 64 for restricting the movement of the pallet P to the side opposite the hoistway by abutting the end of the horizontal portion 61b of the side 61 opposite the hoistway, and the inner side of each shelf rail 3a. Of the pallet P is moved to an engaging position for engaging the pallet P so as to restrict the movement of the pallet P to the hoistway side at the delivery completion position of the pallet P, and the pallet P is engaged with the pallet P during the transfer. The second restricting means 62 operating in the retracted position for releasing and retracting
b. As shown in FIG. 3, the second restricting means 62b is rotated about the center of gravity of the inner surface of the vertical wall 3c of each shelf rail 3a at the substantially center position in the pallet transfer direction through the shaft 65a at the substantially center position in the longitudinal direction. A freely supported plate 65b extending in the pallet transfer direction, and the plate 65b
Between one end (hoistway side end) of the plate 65 and the shelf rail located closer to the hoistway side than the one end of the plate 65.
The other end of b (the end on the side opposite to the hoistway) protrudes above the support surface 3b, that is, the urging spring 65c that urges the plate 65b to move from the retracted position to the engaged position, and the other end of the plate 65b. A protrusion 65d that abuts the lower surface of the rut portion Pa of the pallet P on the side opposite to the hoistway by the urging force of the urging spring 65c to position the plate 65b at the engaging position, and the other end of the plate 65b. And a contact portion 65e facing the inclined surface on the side opposite to the hoistway of the central recessed portion Pd of the pallet P when the plate 65b is positioned at the engagement position by the urging force of the urging spring 65c. ing. Then, the plate 65
b is a vertical displacement operation of the slide fork 32 by each of the positioning devices 57, that is, a vertical displacement operation of positioning the vehicle mounting level Lf of the slide fork 32 at a position above and below the vehicle mounting level Lt of the parking shelf 3. It is configured to move to the retracted position and the engaged position in accordance with the above. In this case, the plate 65b has one end side of the plate 65b on the outer side of the middle frame 36a that accommodates the guide rollers 34 and 35 between the outer middle frame 36a of the middle fork 36 and the outer base frame 33a of the base fork 33. It is designed to be slidably stored.

The operation of the plate 65b accompanying the vertical displacement operation of the slide fork 32 when transferring the pallet P will be described with reference to FIGS. 5 and 6. In this case, since the top fork 37 is omitted in the drawing,
The upper surface of the middle fork 36, which is lower than the top fork 37, is set to the vehicle mounting level Lf ′, and the middle fork 3
The vehicle mounting level Lf ′ of No. 6 is positioned so as to be substantially the same height as the vehicle mounting level Lt of the parking shelf 3 even if the slide fork 32 is displaced upward.

First, referring to FIG. 5, the case where the pallet P (vehicle-mounted pallet P or empty pallet P) is paid out to the parking shelf 3 when the vehicle C is loaded / unloaded will be described. When mounted on the table 6 and not mounted on the parking shelf 3, as shown in FIG. 4A, the plate 65b includes a stopper piece 66 provided on the shelf rail 3a and a biasing spring 65c. It abuts by the urging force and is held at a position beyond the engagement position.

Then, as shown in FIG. 5B, the pallet P is transferred to the storage space 2 by the slide fork 32 from a position above the parking rack 3 at a distance.
At the time of transferring the pallet P, the rut portion Pa on the side opposite to the hoistway of the pallet P is brought into sliding contact with the upper surface of the other end of the plate 65b so that the lower surface of one end of the plate 65b can be slidably contacted with the lower side of the outer side portion of the middle plate 36a. Plate 65b is laid down to the retracted position side. At this time, the vehicle mounting level Lf of each slide fork 32 is higher than the vehicle mounting level Lt of the parking shelf 3 by the positioning device 57, that is, the vehicle mounting level Lf ′ of the middle fork 36 is the vehicle mounting level of the parking shelf 3. It is located at a position that substantially matches Lt.

Thereafter, as shown in FIG. 5C, the middle plate 36a is further extended by the slide fork 32, so that the lower surface of one end of the plate 65b is slidably contacted with the lower side of the outer side portion of the middle plate 36a to retract the plate 65b. On the other hand, the pallet P is transferred to the parking rack 3 side to the transfer completion position in the transfer direction.

Thereafter, as shown in FIG. 5 (d), each slide fork 32 is displaced downward by the positioning device 57 so that the slide fork 32 is mounted on the vehicle at the level L.
By positioning f at a position lower than the vehicle mounting level Lt of the parking shelf 3, that is, at a position where the vehicle mounting level Lf ′ of the middle fork 36 is lower than the vehicle mounting level Lt of the parking shelf 3, one end of the plate 65b is moved. By rotating the plate 65b downward, the projection 65d at the other end of the plate 65b is brought into contact with the lower surface of the rut portion Pa of the pallet P on the side opposite to the hoistway, and the plate 65b is positioned at the engaging position. In this state, the parking shelf 3 of the pallet P
The delivery to is completed. At this time, the abutting portion 65e at the other end of the plate 65b opposes the abutment surface on the side opposite to the hoistway of the central recessed portion Pd of the pallet P so that it can abut, and the abutment of the both allows the pallet P to be raised and lowered. Movement to the roadside is restricted.

Then, as shown in FIG. 5E, the slide fork 32 is contracted while the lower surface of one end of the plate 65b is in sliding contact with the lower side of the outer side of the middle plate 36a, and the pallet P is completely dispensed. In this state,
Even if the pallet P moves upward due to a vibration load in the gap range (see FIGS. 1 and 3) between the horizontal portion 61b of the upper regulating means 61 and the shelf rail 3a, the plate 65b is urged by the urging spring 65c. Stopper piece 66
The protrusion 65d continues to contact the lower surface of the rut portion Pa while following the movement of the pallet P until it contacts. Therefore, even if the pallet P is slightly raised, the plate 65b
Since the contact portion 65e at the other end opposes the slope of the central recessed portion Pd opposite the hoistway side, the pallet P does not move to the hoistway side.

Further, as described above, although the plate 65b is rotatably supported by the shaft 65a, it is supported substantially at the center of gravity of the plate 65b.
Even if an oscillating load is generated in an emergency such as when the plate 65 is disengaged or cut, an abnormal rotational force is not generated in the plate 65b, and the engagement between the plate 65b and the pallet P is not largely disengaged.

Next, the case where the pallet P is pulled in from the parking rack 3 when the vehicle C is loaded and unloaded in FIG. 6 will be described. When the pallet P is placed on the parking rack 3, (a) in FIG. As shown in FIG. 6, the plate 65b is positioned at the engagement position where the projection 65d at the other end is brought into contact with the lower surface of the rut portion Pa on the side opposite to the hoistway of the pallet P, and the plate 65b is brought into contact with the contact portion 65e at the other end. The pallet P is abutted against the inclined surface on the side opposite to the hoistway of the central recess Pd of the pallet P.
The movement of the car to the hoistway side is restricted.

Next, as shown in FIG. 6B, each slide fork 32 is displaced downward by the positioning device 57, and the vehicle level Lf 'of the middle fork 36 is mounted.
Is placed at a position lower than the vehicle mounting level Lt of the parking shelf 3, and in this state, the slide fork 32 is extended so that the lower surface of one end of the plate 65b is attached to the middle plate 36.
It is brought into sliding contact with the lower side of the outer side of a.

Thereafter, as shown in FIG. 6 (c), the slide forks 32 are displaced upward by the positioning device 57 so that the middle fork 36 is mounted on the vehicle at the level Lf '.
Is positioned at a high position that substantially matches the vehicle mounting level Lt of the parking shelf 3, one end of the plate 65b is rotated upward, and the protrusion 65d at the other end of the plate 65b is a rut portion of the pallet P on the side opposite to the hoistway. The plate 65b is separated from the lower surface of Pa, and the plate 65b is positioned at the retracted position. In this state, the pallet P is replaced on the slide fork 32.

Thereafter, as shown in FIG. 6D, the slide fork 32 is contracted while the lower surface of one end of the plate 65b is in sliding contact with the lower side of the outer side of the middle plate 36a, so that the lower surface of one end of the plate 65b is moved. The middle plate 36a falls off from the lower side of the outer side, one end of the plate 65b is rotated downward by the urging force of the urging spring 65c, and the other end of the plate 65b contacts the lower surface of the rut portion Pa of the pallet P on the side opposite to the hoistway. In this state, the plate 65
b is positioned on the retreat position side where the movement of the pallet P to the hoistway 4 side is not restricted. At this time, the top fork 37 is retracted (contracted) at almost double speed of the middle fork 36. When the lower surface of one end of the middle plate 36a falls off from the lower side of the outer side of the middle plate 36a, the pallet P is moved above the other end of the plate 65b. The rut part P on the hoistway side
The lower surface of the middle plate 36a is located, and the plate 65b is not positioned at the engaging position when the lower surface of the middle plate 36a has fallen off from the lower side of the outer side.

Thereafter, as shown in FIG. 6 (e), the slide fork 32 is contracted to pull in the pallet P placed on the slide fork 32, and the pulling in of the pallet P is completed. When the pallet P is pulled in, the contact between the lower surface of the rut portion Pa on the side opposite to the hoistway of the pallet P and the other end of the plate 65b is released, and the plate 6 is released.
5b contacts the stopper piece 66 of the shelf rail 3a and is held at a position beyond the engagement position.

Therefore, in the above embodiment, the pallet P at the transfer completion position from the lift 6 to the parking rack 3 is restricted from moving upward by the upper restricting means 61 and moved in the transfer direction by the transfer direction restricting means 62. Is regulated, and further, the orthogonal direction regulation means 63 regulates the movement in a direction orthogonal to the transportation direction. Therefore, when a horizontal vibration load is applied to the pallet P, the transportation direction regulation means 3
The horizontal movement of the pallet P on the parking shelf 3 is regulated by the 2 and the orthogonal direction regulation means 33, so that the pallet P can be prevented from falling when a load is applied from the horizontal direction, and the pallet P can be vertically moved. When a vibration load is applied, the upward movement of the pallet P on the parking rack 3 is regulated by the upper regulation unit 61, and the floating of the pallet P from the parking rack 3 is reliably prevented. Even if a large vertical vibration load is applied, the pallet P is reliably restrained in the vertical direction on the parking shelf 3, and the pallet P can be prevented from falling when the vertical load is applied. Moreover, since the upward movement of the pallet P is regulated by the upward regulation means 61,
Even if the required height in the engaging direction (vertical direction) required to regulate the movement in the horizontal direction (the transfer direction and the direction orthogonal to the transfer direction) on the parking shelf 3 is reduced, the mutual relationship is maintained. The unlocking is sufficiently avoided, and the horizontal direction regulating means (the transfer direction regulating means 62 and the orthogonal direction regulating means 63).
Even if the vertical displacement of the slide fork 23 at the time of transferring the pallet by the positioning device 57 is reduced, the interference with the restriction portion of the horizontal direction regulation means is reliably avoided, and the vertical portion of The arrangement pitch between the parking shelves 3 and 3 can be reduced, and the height of the elevator type multi-level parking facility A can be reduced. In particular, the transfer direction regulating means 62 of the above embodiment follows the movement of the pallet P even if the pallet P is slightly moved up and down, and the contact portion 65e of the second regulating means 62b and the rut portion of the pallet P on the side opposite the hoistway. Since the engagement with Pa is maintained, even if the upper regulation means 61 has a small regulation margin (gap), the fall prevention function of the pallet P is not impaired.

Further, the above-mentioned upper regulating means 61 is arranged so that the pallet P and the shelf rail 3a at the delivery completion position of the pallet P.
Are provided at positions where they overlap each other when viewed from above and below, so that when a vertical vibration load is applied to the pallet P, the upper regulating means 61 is brought into contact with the shelf rail 3a to move the pallet P upward. Is easily regulated, and the structure of the upper regulating means 61 can be simplified.
Further, since the upper regulating means 61 is provided on the outer side of the vertical wall 3c of the shelf rail 3a in which the overlap is avoided when viewed from the transfer direction of the pallet P to the pallet P and the shelf rail 3a, the transfer of the pallet P is performed. Sometimes upward regulation means 6
1 does not interfere with the shelf rail 3a, and the pallet P can be transferred smoothly. Further, the upper regulating means 61 has a horizontal portion 61 at the lower end of the hanging portion 61a when viewed from above the supporting surface 3b of the shelf rail 3a.
Since it is provided at a position where b is overlapped, the upper restricting means 61 has a simple fixed structure including the hanging part 61a and the horizontal part 61b, and the upper restricting means is restricted in restricting the upward movement of the pallet P. Does not need to be moved by an actuator, a biasing means, or the like, and the cost can be reduced when the upper regulating means 61 is provided.

Further, the orthogonal direction regulating means 63 moves the pallet P in the direction orthogonal to the transfer direction by abutting the rack rails 3a and the hanging portions 61a at the position where the transfer of the pallet P to the parking shelf 3 is completed. Since it is configured to regulate, the orthogonal direction regulation means 63 is the upper regulation means 61.
Since it is also used as the hanging portion 61b, it is not necessary to provide a separate member when providing the orthogonal direction regulating means 63, and the cost can be reduced when providing the orthogonal direction regulating means 63.

Moreover, the movement of the pallet P to the side opposite to the hoistway is regulated by contacting the horizontal portion 61b of the pallet P with the stopper member 64 of the first regulating means 62a of the parking rack 3 at the delivery completion position to the parking rack 3. On the other hand, the movement of the pallet P to the hoistway side is such that the pallet P at the other end of the plate 65b of the second restricting means 62b which moves from the retracted position to the engaged position at the delivery completion position of the pallet P to the parking shelf 3.
Is regulated by engagement with the central recessed portion Pd.
In that case, the second restricting means 62b causes the positioning devices 57 to
When the slide fork 32 is vertically displaced by the operation of the pallet P, the pallet P is moved to the retracted position during the transfer to the parking rack 3 and to the engagement position when the transfer to the parking rack 3 is completed. Sometimes the second regulation means 62
While b is reliably prevented from engaging with the pallet P, the pallet P can be transported smoothly, while the pallet P is reliably engaged with the pallet P at the delivery completion position.
The movement of the pallet P in the transfer direction can be reliably regulated in combination with the regulation of the movement of the pallet P to the side of the hoistway by the first regulation means 62a. Moreover, the second restricting means 62
Since the operation of b is performed in accordance with the vertical displacement operation of the slide fork 32, it is not necessary to separately provide an actuator or a biasing means when operating the second restricting means 62b between two positions, and the second restricting means is not required. Cost reduction can be achieved in providing 62b. Further, the upper regulating means 61
The horizontal portion 61b of the stopper member 6 of the first restricting means 62a.
Since it is also used as a locking tool for the pallet P that abuts against 4, it is not necessary to separately provide a locking tool, and the number of parts can be reduced.

The present invention is not limited to the above embodiment, but includes various other modifications.
For example, in the above embodiment, the first restricting means is configured so that the horizontal portion 61b of the upper restricting means 61 is brought into contact with the stopper member 64 of the transfer direction restricting means 62. Locking tools that come into contact with each other may be separately provided at both ends of the pallet.

[0067]

As described above, according to the pallet drop prevention device of the mechanical parking equipment of the first aspect of the invention, the pallet is moved upward by the upward regulating means at the position where the delivery of the pallet from the elevator is completed. Since the movement is regulated, the movement in the transportation direction is regulated by the transportation direction regulation means, and the movement in the direction orthogonal to the transportation direction is regulated by the orthogonal direction regulation means, the pallet when a load is applied from the horizontal direction. In addition to being able to prevent the falling of the pallets by the transfer direction regulation means and the orthogonal direction regulation means, the upward regulation means can surely prevent the pallet from being lifted when a load is applied from the up and down direction and a large load effect due to a direct earthquake, etc. Sometimes, the pallet can be securely restrained on the parking shelf to prevent the pallet from falling when a load is applied from the vertical direction. Moreover, by providing the upper regulating means, the vertical height of the regulating portion of the horizontal regulating means can be kept low, and the vertical displacement amount of the slide fork by the vertical displacing means can be reduced, so that the arrangement between the upper and lower parking shelves is reduced. The pitch can be reduced and the height of the entire mechanical parking facility can be reduced.

According to the pallet drop prevention device of the mechanical parking equipment of the second aspect of the present invention, the pallet delivery completion position without the pallet and the parking rack overlapping each other when the upper regulating means is viewed from the pallet transfer direction. Since it is provided between the pallet and the parking rack so that the pallet and the parking rack overlap when viewed from above and below, it is possible to easily regulate the upward movement of the pallet and simplify the structure of the upper regulating unit. In addition to being able to plan, the pallets can be transferred smoothly.

According to the pallet fall prevention device of the mechanical parking equipment of the third aspect of the present invention, when the pallet is transferred, the horizontal portions of the lower ends of the hanging portions at both ends of the pallet overlap the support surface of the shelf rail from below. Since it was made, the upper regulating means is a fixed type simple structure of the hanging part and the horizontal part,
It is possible to reduce the cost of the upper regulating means that does not require an actuator or a biasing means.

According to the pallet drop prevention device of the mechanical parking equipment of the fourth aspect of the present invention, the orthogonal direction for restricting the movement of the pallet in the direction orthogonal to the transfer direction by the contact between each shelf rail and the hanging portion. Since the restricting means is configured, the cost of the orthogonal direction restricting means can be reduced by also serving as the hanging part of the upper restricting means.

According to the pallet drop prevention device of the mechanical parking equipment of the fifth aspect of the invention, the second regulating means for regulating the movement of the pallet in the transfer direction by the first regulating means is slid by the vertical displacement means. Since the pallet is moved to the retracted position for smooth movement and the engagement position for engaging with the pallet in accordance with the vertical displacement operation of the fork, the actuator for activating the second restricting means, the urging means, etc. are unnecessary, The cost of the second restricting means can be reduced.

Further, according to the pallet fall prevention device of the mechanical parking facility of the invention as defined in claim 6, since the pallet locking device is also used as the horizontal portion of the upper regulating means, it is necessary to separately provide the locking device. It is possible to reduce the number of parts because it is eliminated.

[Brief description of drawings]

FIG. 1 is a front view of a pallet fall prevention device according to an embodiment of the present invention, as viewed from the side opposite to the hoistway with the pallet being cut at a rut portion on the side opposite to the hoistway.

FIG. 2 is a perspective view of a pallet fall prevention device when a pallet on a parking rack is viewed obliquely from the front.

FIG. 3 is a perspective view of second restricting means when the pallet on the parking rack is viewed obliquely from the upper rear side.

4 is a cross-sectional view taken along line XX of FIG.

5 (a) to 5 (e) are operation explanatory views of a second restricting means showing a delivery procedure at the time of entering the vehicle.

6 (a) to 6 (e) are operation explanatory views of the second restricting means showing the delivery procedure when the vehicle is leaving.

7 (a) to 7 (f) are operation explanatory diagrams showing a delivery procedure at the time of entering the vehicle.

8 (a) to (f) are operation explanatory views showing a delivery procedure when the vehicle is leaving.

FIG. 9 is a cross-sectional plan view of the elevator-type multi-story parking facility.

FIG. 10 is a side view of the elevator.

FIG. 11 is a plan view of a slide fork.

FIG. 12 is a side view of the slide fork.

FIG. 13 is a perspective view showing a telescopic mechanism of a slide fork.

FIG. 14 is a side view of the positioning device.

FIG. 15 is a plan view showing the positioning device with a part thereof cut away.

FIG. 16 is a schematic configuration diagram of an elevator type multi-level parking device.

[Explanation of symbols]

 3 Parking Shelf 3a Shelf Rail 3b Supporting Surface 4 Hoistway 6 Lifting Table 32 Slide Fork 57 Positioning Device (Vertical Displacement Means) 61 Upper Limiting Means 61a Hanging Part 61b Horizontal Part (Locking Tool) 62 Transfer Direction Regulation Means 62a First Regulation Means 62b Second regulating means 63 Orthogonal direction regulating means 64 Stopper member A Elevator type multi-level parking facility (mechanical parking facility) C Vehicle P Pallet

Claims (6)

[Claims] 1. An elevating table for raising and lowering a pallet on which a vehicle is placed along an ascending / descending path, and a plurality of parking shelves arranged in layers adjacent to the ascending / descending path of the elevating table, each accommodating the vehicle together with the pallet. , An extendable and retractable slide fork that is provided on the lift table and horizontally transfers the pallet to and from a parking shelf on the side of the lift table, and is provided between the lift table and the parking shelf. A vertical displacement means for vertically shifting the slide fork during transfer is provided, and the slide fork is extended / contracted and vertically displaced in a state where the lift base is stopped to the side of the parking rack, thereby moving the lift rack and the parking rack. In a mechanical parking facility in which a pallet is transferred between a vehicle and a pallet, when the pallet is transferred from the lift to the parking shelf by the slide fork, the pallet on the parking shelf is Upward regulation means for regulating the movement of the pallet toward the above direction, a transportation direction regulation means for regulating the movement of the pallet in the transportation direction on the parking shelf, and a direction orthogonal to the transportation direction of the pallet on the parking shelf. A pallet drop prevention device for a mechanical parking facility, which is provided with an orthogonal direction regulation means for regulating movement to a pallet. 2. The upper regulating means is provided so as not to overlap the pallet and the parking rack as viewed from the transfer direction during the transfer of the pallet, and at the transfer completion position of the pallet, the pallet and the parking are viewed from above and below. The pallet fall prevention device for mechanical parking equipment according to claim 1, wherein the pallet fall prevention device is provided at a position overlapping the shelf. 3. The parking rack is provided with shelf rails having support surfaces extending from the lower end surfaces of the pallet in the pallet transfer direction so as to support the lower end surfaces of both ends of the pallet in a direction orthogonal to the pallet transfer direction. The upper regulating means includes a hanging portion that hangs downward from both ends of the pallet, and a horizontal portion that horizontally extends from the lower end of the hanging portion toward the shelf rail side. The pallet fall prevention device for a mechanical parking facility according to claim 2, wherein the wrapping overlaps the support surface of the shelf rail when viewed from above the support surface. 4. The orthogonal direction regulating means is provided so as to regulate movement of a pallet transferred onto each of the shelf rails in a direction orthogonal to the transfer direction by abutting between each of the shelf rails and the hanging portion. A pallet fall prevention device for mechanical parking equipment according to claim 3. 5. The transfer direction restricting means has a stopper member for restricting the movement of the pallet to the side opposite to the hoistway by contacting a locking tool provided on the pallet at a transfer completion position of the pallet to the parking rack. (1) When the pallet is engaged with the pallet so as to regulate the movement of the pallet to the hoistway side at the delivery completion position of the pallet to the parking shelf, the pallet is engaged during the transfer of the pallet. And a second restricting unit that operates to a retracted position to release and retract. The second restricting unit moves to the retracted position and the engaging position as the slide fork is vertically displaced by the vertical displacement unit. The pallet fall prevention device for mechanical parking equipment according to claim 1, claim 3 or claim 4, which is provided so as to do so. 6. The pallet fall prevention device for a mechanical parking facility according to claim 5, wherein the pallet locking device also serves as a horizontal portion of the upper regulating means.