JPH03119271A - Horizontal circulating-type parking device - Google Patents

Abstract

PURPOSE:To make transfer between breadthwise and lengthwise conveying passages smooth in simple structure by providing a plurality of breadthwise conveying passages that are connected with the lengthwise conveying passages, by providing driving rollers between the breadthwise conveying passages and by providing eccentric rollers on points where both of the passages cross each other. CONSTITUTION:Three or more breadthwise conveying passages 1 and 2 are installed side by side, and each one of end parts thereof and each one of another end parts thereof are connected respectively to lengthwise conveying passages 3 and 4. Driving rollers 11... are provided to a space between the adjoining breadthwise conveying passages 1 and 2, and pallets 5 and 5 are transferred lengthwise, being supported with the rollers at a height higher than the height as being supported in the breadthwise conveying passages 1 and 2. To points B... where the lengthwise conveying passages 3 and 4 and the breadthwise conveying passages 1 and 2 cross each other, eccentric rollers 13... are provided and supporting height of the pallet is then vertically moved between the position that is lower than the supporting height and higher than the supporting height in the breadthwise conveying passages 1 and 2, and the pallets 5 and 5 are transferred, while being raised up between the breadthwise conveying passages 1 and 2 of the cross points B... and the driving rollers 11... of the intermediate points A and A.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a horizontal circulation parking device.

(Prior Art) A parking device is configured so that a plurality of pallets carrying vehicles can be circulated through two horizontal transfer paths arranged in parallel with each other and two vertical transfer paths that connect the two horizontal transfer paths. The horizontal circulation type is generally known (Special Publication Publication No. 45-3102
(See Publication No. 3). In this case, the horizontal transfer path is provided with a pair of parallel horizontal transfer rails that support the pallet, and the pallet is transferred using the horizontal transfer rails as a guide. In addition, in the vertical transfer path, as shown in Fig. 9, multiple sets of two moving rails c and d are arranged on an endless conveyor chain b suspended from a pair of sprockets a and a. Usually, a pallet e is supported by a pair of moving rails c and d, and is transferred between the two horizontal transfer paths by the running of a conveyor chain b.

That is, the distance between the pair of moving rails c and d corresponds to the distance W between the pair of lateral transfer rails in the lateral transfer path. By running the conveyor chain b, a pair of moving rails c and d on the vertical transfer path are connected to the horizontal transfer rail, and the pallet e is transferred between the two transfer paths.

By the way, the circulation transfer of pallets in the above-mentioned horizontal circulation parking device is performed by forming an empty space at either end of the vertical transfer path. In other words, pallet e can be transferred along the horizontal transfer path by feeding the pallet e into the empty space from the horizontal transfer path. Therefore, from the state in which the set of moving rails C1d located on the carrier side of the conveyor chain b is connected to one of the horizontal transfer rails,
When the moving rail C1d, which was located on the return side of the conveyor chain b, is moved to the state connected to the other horizontal transfer rail to form an empty space, the set of moving rails C1d located on the return side of the conveyor chain b is connected to the one horizontal transfer rail in the empty space. It must be stopped at the location where it is connected.

In this case, in the method of arranging multiple sets of two moving rails, the interval between adjacent sets of moving rails is All must be constant so as to correspond to the spacing S between adjacent lateral transfer rails between both lateral transfer paths arranged in parallel. Therefore, the length of the conveyor chain b is (4W+4S) since four sets of moving rails c and d are arranged with a distance S between them.

In addition, as a horizontal circulation type parking device, horizontal transfer rails and vertical transfer rails are provided to intersect with each other, and wheels for horizontal transfer and wheels for vertical transfer are separately provided on the pallet, and a part of the vertical transfer rails is also provided. An auxiliary roller that can be rotated in the horizontal transfer direction is provided in the notch, and when the pallet is transferred from the horizontal transfer rail to the vertical transfer rail, the wheels for vertical transfer are temporarily mounted on the auxiliary roller.
There is also a device in which wheels for vertical transportation can run smoothly on vertical transportation rails (see Japanese Patent Laid-Open No. 64-6473). Further, in this device, the vertical conveyance of the pallet is carried out by running a conveyor chain equipped with a locking member that locks the pallet.

(Problem to be solved by the invention) However, in the pallet vertical transfer means using the conveyor chain and the moving rail, the distance S between the adjacent horizontal transfer rails between the two horizontal transfer paths installed in parallel is When it is wide, the amount L of protrusion of sprocket a from the horizontal transfer rail (the distance from the moving rail d stopped at the connection position to the horizontal transfer rail to the sprocket a) increases accordingly.

In other words, in order to tension the conveyor chain b between the moving rails c and d located at the ends of the carrier side and the return side, the sprocket a must be made to protrude greatly from the moving rail at the connection position. No. In this case, a simple calculation results in L -172·S.

As mentioned above, a large protrusion means that when both ends of pallet e are supported by a pair of moving rails c and d, sprocket a is lower than pallet e's stopping position in the vertical transfer path. This means that the parking lot protrudes significantly outward, which means that extra space that does not contribute to parking must be taken up. In particular, even if a rectangular parking space is secured within a building to install a horizontal circulation parking system, the pillars of the building often protrude from the walls at the corners of this space, and the corners of the parking system The sprocket a and the column that will be located there will likely interfere with each other.

Therefore, in order to avoid this interference, the lateral transfer rails can actually only be placed far inside the pillars, and the actual situation is that the utilization efficiency of the parking space is low.

In addition, in the case of the above-mentioned vertical transfer means using a conveyor chain and a moving rail, it is necessary to secure a running space for the moving rail on the return side of the conveyor chain, which increases the height of the vertical transfer means and ultimately increases the overall parking device. height increases.

On the other hand, a configuration in which the horizontal transfer rail and the vertical transfer rail are crossed solves the above-mentioned problems, but it requires wheels for vertical transfer, auxiliary rollers for transitioning from the horizontal transfer rail to the vertical transfer rail, and In addition to requiring a separate conveyor chain for vertical transfer, there may be dimensional errors such that the wheels for vertical transfer are higher than the wheels for horizontal transfer, or the horizontal transfer rail is higher than the vertical transfer rail. If there is a deflection that increases the height, it is impossible to transition from horizontal transfer to vertical transfer using the auxiliary rollers.

To deal with this, it is conceivable to make the wheels for vertical transfer lower than the wheels for horizontal transfer, but if you take into account the risk of them running onto the auxiliary rollers, there is a limit to increasing the height difference between the side wheels. As a result, it is necessary to improve the dimensional accuracy of each part constituting the parking device, and a difficult design is required to reduce the deflection of the rails, pallets, and other supporting structural members of the parking device.

That is, the first object of the present invention is to make it possible to relatively easily fit the driving portion of the vertical transfer path within the range of the movement locus of the pallet without particularly strict requirements for dimensional accuracy for the parking device. Therefore, it is possible to improve the utilization efficiency of parking spaces for accommodating vehicles, and also to reduce the height of the entire parking device.

A second object of the present invention is to solve the following problem while solving the first problem described above when three or more lateral transfer paths are arranged in parallel.

First, all of the moving rails on a conventional vertical transfer path move simultaneously, so it is not possible to arrange two or more pallets on this vertical transfer path. In other words, these pallets are vertically transported at the same time by the movement of the moving rails, so if there is a pallet at the end of the vertical transport path, for example, there is a problem such as the pallet falling off the vertical transport path.

Further, for example, when three horizontal transfer paths are installed in parallel, the interval between the first horizontal transfer path and the second horizontal transfer path is different from the interval between the second horizontal transfer path and the third horizontal transfer path. When the pallet is moved vertically, the pallet cannot be vertically transferred if the distance S between the corresponding sets of moving rails shown in FIG. 9 is constant. Therefore, it is necessary to arrange a large number of moving rails on one conveyor chain in order to accommodate the above-mentioned difference in spacing.

A third object of the present invention is to solve the first problem described above when three or more horizontal transfer paths are installed in parallel, while also allowing vertical transfer to occur in an intermediate horizontal transfer path excluding the horizontal transfer paths at both ends. The objective is to prevent pallets from passing through the lateral transfer path as they are.

(Means for Solving the Problems) The present invention solves the above-mentioned first problem by using rollers to transport the pallets in the vertical transport path, thereby solving the problems caused by using the endless conveyor chain described above. Furthermore, in order to smoothly transition the pallet from horizontal transportation to vertical transportation using the rollers,
The vertical transfer height of the pallet is made higher than the horizontal transfer height, and the pallet can be transferred to the vertical transfer state while being lifted using an eccentric roller.

That is, the specific means for that purpose is a plurality of lateral transfer paths arranged in parallel, each extending in the lateral direction, and the above-mentioned method connecting one end of the plurality of lateral transfer paths and the other ends of the plurality of lateral transfer paths, respectively. A horizontal circulation parking device in which a circulation path for circulating a plurality of pallets on which vehicles are placed is formed by two vertical transfer paths extending in the vertical direction perpendicular to the horizontal direction,
In each of the above-mentioned vertical transfer paths, the pallet is supported at a position higher than the pallet support height in the horizontal transfer path and is transferred vertically at an intermediate portion between adjacent horizontal transfer paths that does not intersect with the horizontal transfer path. Drive rollers are disposed at the intersections of each vertical transfer path and horizontal transfer path, and the center of rotation is eccentric with respect to the center of the roller, and due to rotation, the pallet support height increases to the pallet support height on the horizontal transfer path. The pallet is characterized by being provided with an eccentric roller that moves up and down between a lower position and a higher position than that of the pallet, and lifts and transfers the pallet between the lateral transport path at the crossing area and the drive roller at the intermediate area. It is something.

In addition, the means for solving the second problem is that the horizontal transfer path is
In the horizontal circulation parking device, which is provided at least one of the above, the eccentric rollers provided at each intersection of the vertical transfer path and the horizontal transfer path are provided with individual driving means that drive each independently of the other. It is something to do.

A means for solving the third problem is that in a horizontal circulation parking system in which three or more lateral transfer paths are provided, an intermediate lateral transfer path provided between the lateral transfer paths at both ends has no A blocking position that contacts a pallet vertically transferred from one of the horizontal transfer paths on both sides to prevent the pallet from being transferred to the other horizontal transfer path; The apparatus is characterized in that a movable stopper is provided that is movable between the blocking position and a retracted position to permit transfer to the transfer path.

(Operation) In the means for solving the first problem, the pallet that is laterally transferred to the intersection of the vertical transfer path and the horizontal transfer path is raised higher than the supporting height in the horizontal transfer path due to the rotation of the eccentric roller. While being lifted up, it begins to be transported vertically and rides on the drive roller at the intermediate location.

The rotation of this drive roller transports the pallet vertically to the next intersection, and at the next intersection, the pallet, which has been unloaded from the intermediate drive roller to the eccentric roller, is transferred horizontally to the intersection by the rotation of the eccentric roller. It will be moved to the street.

That is, the drive roller and eccentric roller, which serve as means for vertically transporting the pallet, are located at the intermediate portion of adjacent horizontal transport paths and at the intersection of the vertical and horizontal transport paths, and support the pallet from below. Therefore, the means for vertically transporting the pallet does not protrude beyond the movement trajectory of the pallet.

Furthermore, the space required to arrange the drive roller and eccentric roller may be vertically narrower than that of the conventional conveyor chain and moving rail, so the height of the vertical transfer means can also be lowered. can.

Further, since the eccentric roller serving as the vertical transport means moves the pallet up and down, there is no need to provide a separate up and down movement means.

Therefore, since the vertical transfer path is basically composed of rollers, the deflection of the vertical transfer rail does not have an adverse effect on the height difference between the horizontal transfer path and the vertical transfer path as in the past. Moreover, even if there is a variation in the height difference, it can be dealt with by increasing the amount of eccentricity of the eccentric roller in advance.

Next, in the means for solving the second problem, since the eccentric rollers at each intersection part are driven independently of each other,
Even if a plurality of pallets are arranged on the vertical transfer path, each pallet can be vertically transferred independently, and for example, a pallet located at the end of the vertical transfer path will not fall off from the vertical transfer path. In addition, in the case of a vertical transfer means using a drive roller and an eccentric roller, even if the distance between adjacent horizontal transfer paths is large or small, it is only necessary to increase or decrease the number of drive rollers arranged according to the size. The configuration of the transport means is not complicated.

Next, in the means for solving the third problem, the vertical transfer range of the pallet can be restricted by the movable stopper, and the pallet can be vertically transferred from the - horizontal transfer path to the desired horizontal transfer path. become able to.

(Effects of the Invention) Therefore, according to the means for solving the first problem, since the vertical pallet transport means is configured by the drive roller and the eccentric roller, the structure of the parking device is not complicated and high dimensional accuracy is required. The pallet can be smoothly transferred between the horizontal transfer path and the vertical transfer path without being
The vertical transport means can be placed within the range of the movement locus of the pallet to improve the efficiency of parking space utilization.

Further, according to the means for solving the second problem, since the vertical transport means is configured using a drive roller and an eccentric roller, when three or more horizontal transport paths are installed in parallel, it is possible to Even if the interval between the horizontal transfer paths is large or small, the structure of the vertical transfer means is not complicated, and since the eccentric rollers at each crossing point are driven independently of each other, multiple It is now possible to place pallets,
It will be possible to increase the number of parking spaces.

Furthermore, according to the means for solving the third problem, since the movable stopper is provided, the vertical transfer range of the pallet can be regulated and the pallet can be smoothly sent to a desired horizontal transfer path.

(Example) Embodiments of the present invention will be described below based on the drawings.

<Example 1> As shown in FIG. 1, the horizontal circulation parking device of this example includes first and second horizontal transfer paths 1 and 2 that extend in the horizontal direction and are arranged in parallel with each other, and these two The first and second vertical transfer paths 3 and 4 extend in the vertical direction perpendicular to the horizontal direction so as to connect one end of the horizontal transfer path 11.2 and the other end of the horizontal transfer path 11.2, respectively. A rectangular circulation path is formed in which the pallets 5 are circulated in a fixed direction.

This parking device is installed in the basement of a building, and has a vehicle entry/exit section (above ground) on the opposite side of the first horizontal transfer path 1 across the first vertical transfer path 3. Vehicle elevating means (not shown - omitted) is provided to communicate with the underground parking floor.

The above-mentioned both lateral transfer paths 1.2 include a pair of lateral transfer rails 6.6 that support a plurality of pallets 5 and guide the lateral transfer thereof, and a lateral transfer rail 6.6 extending in parallel in the lateral direction, and a lateral transfer rail 6.6 for lateral transfer of the pallets 5. means 7.7, respectively. That is,
On the lower surface of the pallet 5, single-flange wheels 8 for transferring the horizontal transfer rails 6.6 are provided at the four corners, and on both sides there are couplers 9.9 that can be connected to laterally adjacent pallets 5. A plurality of pallets 5 are connected and transferred horizontally in the horizontal transfer paths 1 and 2.

This coupler 9 can be disengaged by relative vertical movement and vertical movement of adjacent pallets 5.5. The lateral transfer means 7 is of a known crank arm type. That is, rollers provided at both ends of a crank arm that rotates around a vertical axis engage with groove members in the longitudinal direction of the pallet provided on the lower surface of the pallet 5, and the pallet 5 is laterally transferred by rotation of the crank arm. Further, the lateral transfer rail 6 is fixed on the underground floor 10 as shown in FIG.

On the other hand, in the vertical transfer paths 3 and 4, as shown in FIG. 2, a plurality of Drive roller 11
are arranged, and a plurality of free rollers 12 and a plurality of eccentric rollers 1 are arranged at the intersection B of the horizontal transfer path 1゜2 and the vertical transfer paths 3 and 4.
3 are arranged. All of these rollers 11 to 13 have their axes in the horizontal transport direction, and are arranged in two rows on the left and right at intervals in the vertical transport direction.

That is, the drive rollers 11 in the intermediate portion A are for supporting the pallet 5 at a position higher than the pallet support height in the horizontal transfer paths 1 and 2 and transferring it vertically, and three drive rollers are provided in each row. ing. Free roller 12 at the intersection B
The pallets 5 can be supported at a position lower than the pallet support height in the horizontal transfer paths 1 and 2, and four pallets are provided in each row. The eccentric rollers 13 are disposed on the front and rear sides of the free roller row, that is, on the front and rear ends of the intersection B in the vertical transport direction, one each on the left and right.

The rotation center of each eccentric roller 13 is eccentric with respect to the roller center, and the pallet support height moves up and down between a position lower and a higher position than the pallet support height in the horizontal transfer paths 1 and 2 due to rotation. It is supposed to be done.

The height relationship of the above three types of rollers 11, 12, and 13 is as follows.
Specifically shown in the figure. That is, in the same figure,
The reference line g indicates the height of the lower surface of the pallet 5 transferred through the horizontal transfer paths 1 and 2, and the eccentric roller 13 is at the same height as the free roller 12 at its bottom dead center, and It is set to be at the same height as the drive roller 11 at the top dead center.

Further, as shown in FIGS. 4 and 5, the eccentric roller 13 has a ring 13b made of rubber or plastic fitted onto the roller body 13a so as to be slidable in the rotational direction, and this ring 13b is attached to the roller body 13a. It is held between both sides by flanges 13C and 13c fixed to the sides. A rotating shaft 13d is integrally provided in the roller main body 13a so that the rotation center Dc is eccentric by a predetermined amount e with respect to the roller center Re.

Therefore, in the case of this eccentric roller 13, the roller body 13H
As the ring 13b rotates, the ring 13b rotates accordingly, but when the ring 13b is in contact with the lower surface of the pallet 5, it may slip slightly on the outer peripheral surface of the roller body 13a due to the frictional force between the ring 13b and the pallet 5. is possible, and an excessive forward driving force is not applied to the pallet 5 during vertical transportation.

In the case of this embodiment, as shown in FIG.
4, they are rotated synchronously. That is, the eccentric rollers 1B, 1B at one end of the vertical transfer paths 3, 4 are connected to both ends of a drive shaft 15 in the horizontal transfer direction, and the output shaft of the drive motor 14 is connected to this drive shaft 15 via a gear. There is. The drive rollers 11 and eccentric rollers 13 in each of the other rows are connected via bevel gears to a rotating shaft 16 in the vertical transport direction, which is connected to the drive shaft 15 via a bevel gear.

Note that illustration of each of the above bevel gears is omitted.

Furthermore, two regulating rollers 17 are provided at both ends of the vertical transfer paths 3 and 4, respectively, and are rotatable around vertical axes.

That is, the regulating roller 17 comes into contact with the front or rear side of the pallet 5 that is being transported horizontally to the crossing point B, and guides the horizontal transport, and also guides the horizontal transport of the pallet 5 that is being transported vertically to the crossing point B. Alternatively, it comes into contact with the rear side surface to prevent overrun.

FIG. 6 is a graph showing the vertical transfer speed of the pallet 5,
The driving roller 11 and the eccentric roller 13 are in an accelerated operation state where the transfer speed increases as the distance from one intersection point B increases, an intermediate constant speed operation state, and a transfer speed decreases as the distance from the other intersection point B approaches. The rotation is controlled so that a decelerated operating state is obtained.

Next, the operation of the parking device will be explained.

- Pallet Circulation - In this parking device, the pallets 5 are circulated by forming empty spaces in which no pallets are present at two of the four intersection points B, which are diagonally located. . In other words, the two empty spaces are used to simultaneously perform lateral transfer in opposite directions on both lateral transfer paths 1 and 2.
In addition, two empty spaces will be used to construct transfer routes 3 and 4 for both lines.
By repeating the simultaneous vertical transfer in opposite directions, the desired pallet 5 is moved to the intersection point B next to the loading/unloading section, and then by horizontal transfer in the direction of the loading/unloading section, it is moved to the intersection point The pallet 5 of B will be carried out to the warehousing/unloading section. The pallet 5 can be carried in from the loading/unloading section to the circulation path by lateral transfer in the opposite direction to that in the case of unloading.

-Transition from horizontal transport to vertical transport- When the pallet 5 is horizontally transported to one intersection area B, the drive roller 11 and the eccentric roller 13 are rotationally driven. As a result, the pallet 5 is first moved by the front and rear eccentric rollers 13,
13, the horizontal transfer rail 6 is moved as shown in FIG.
While being lifted from the ground, vertical transport begins. in this case,
Since the collar 8a of the wheel 8 of the pallet 5 contacts the side surface of the horizontal transfer rail 6, the pallet 5 is not vertically transported until the collar 8a rides on the horizontal transfer rail 6. In contrast, the ring 13b of the eccentric roller 13 mainly performs the action of simply lifting the pallet 5 by sliding on the outer circumferential surface of the roller body 13a, and does not apply excessive vertical transport force to the pallet 5. Therefore, problems such as damage to the wheels 8 and the eccentric roller 13 or wear between the lower surface of the pallet 5 and the eccentric roller 13 do not occur.

In addition, since the eccentric roller 13 initially rotates slowly as shown in FIG. 6, it does not apply a large impact to the pallet 5 when lifting the pallet 5, and
This prevents the collar 8a from colliding with the side surface of the lateral transfer rail 6 with great force.

After the collar 8a of the wheel 8 rides on the horizontal transfer rail 6, the pallet 5 is vertically transferred as it is by the rotation of the eccentric roller 13 and rides on the drive roller 11 of the intermediate portion A. By rotation with the eccentric roller 13, it is vertically transferred from the above-mentioned one crossing point B to the other crossing point B.

At this time, when the pallet 5 separates from the eccentric roller 13 located at the rear end in the vertical transport direction, the rear end moves toward the free roller 12.
As a result, there is no problem in vertically transporting the pallet 5.

Transition from one vertical transport to horizontal transport - When the pallet 5 is vertically transported from the intermediate part A to the other crossing part B, its front end rides on the eccentric roller 13 on the near side of the crossing part B. Therefore, this eccentric roller 1
3 and the drive roller 11, the pallet 5 continues to be transported vertically, and the front end of the pallet 5 rides on the free roller 12 from the eccentric roller 13 on the front side, and is further transported vertically on the free roller 12. To go.

In this way, the front end of the pallet 5 rides on the eccentric roller 13 on the far side, and the rear end moves away from the drive roller 11 and rides on the eccentric roller 13 on the near side. and,
Due to the rotation of the eccentric rollers 13, 13 on the far side and the front side, the pallet 5 is further vertically moved while moving up and down, comes into contact with the regulating roller 17 in front of it, and rides on the horizontal transfer rail 6 at the intersection point B. It turns out. In this case, since the eccentric roller 13 is driven at a reduced speed as shown in FIG. 6, the pallet 5 is smoothly placed on the lateral transfer rail 6 without colliding with the regulating roller 17 or the like with a large force.

Therefore, after that, the pallet 5 can be transferred to the horizontal transfer state by the operation of the horizontal transfer means 7.

<Example 2> The parking device of this example is shown in FIGS. 7 and 8, and 3
Horizontal book transfer paths 20, 21, 22 are arranged in parallel, and a vertical transfer path 23, 24 is provided for vertically transferring the pallet 5 between the first to third horizontal transfer paths 20 to 22. .

The interval between the first lateral transfer path 20 and the second lateral transfer path 21 is narrow (
The vertical transfer stroke between the two horizontal transfer paths 20 and 21 is short), and the interval between the second and third horizontal transfer paths 21 and 22 is wide (the vertical transfer stroke between the two horizontal transfer paths 21 and 22 is long) is set. In the vertical transfer path 23.24, each intersection portion of the horizontal transfer paths 20 to 22 and the vertical transfer path 23.24, that is, each of the first to third intersection portions B, B2. B
The roller configuration of No. 3 is the same as that of Example 1, but the first lateral transfer path 20 and the second lateral transfer path 21 are
Two drive rollers 11 in each row are provided in the first intermediate portion A1 between the two, and three drive rollers in each row are provided in the second intermediate portion A2 between the second lateral transfer path 21 and the third lateral transfer path 22. 11 are provided.

In this way, the eccentric rollers 13 at each of the first to third intersection points are driven independently of each other.

That is, first, one set of drive rollers 11, 11 in the first intermediate region A1, and another set of drive rollers 11, 11 in the same region.
, and the central set of drive rollers 11 of the second intermediate section A2.
．． 11 are first to third drive motors 25, 2, respectively.
It is connected to both ends of the first to third drive shafts 28, 29 and 30 which are rotationally driven at 6.27. and,
The eccentric roller 13 of the first crossing point B1 is connected to the rotary shaft 31 connected to the first drive shaft 28, and the eccentric roller 13 of the second crossing point B2 is connected to the rotating shaft 31 connected to the first drive shaft 28, and the eccentric roller 13 of the second crossing point B2 is connected to the rotating shaft 31, together with a set of driving rollers 11.11 of the second intermediate point A2. The eccentric roller 13 at the third intersection part B3 is connected to the rotating shaft 32 connected to the second drive shaft 29, and the eccentric roller 13 at the third intersection part B3 is connected to the remaining one set of drive rollers 11 at the second intermediate part A2.
11 and a rotating shaft 33 connected to a third drive shaft 30, respectively.

In the vertical transfer path 23, 24, the central second
On both sides of the horizontal transfer path 21 (second intersection point B2), there are first and second grooves that regulate the transfer range of the pallet 5 that is vertically transferred.
A movable stop 34,35 is provided. That is, the first movable stopper 34
an upright position (blocking position) that abuts against the pallet 5 vertically transferred from the intersection point B+) and prevents the pallet from being transferred to the third lateral transfer path 22 (third intersection point B3), and this second lateral transfer path The pallet 5 is supported on the floor 10 so as to be able to be raised and lowered between a collapsed position (retracted position) that allows vertical transport of the pallet 5 between the pallet 21 and the third lateral transport path. The second movable stopper 35 has an undulating position that prevents the pallet 5 vertically transferred from the third lateral transfer path from being vertically transferred to the first lateral transfer path 20, and an undulating position that prevents the pallet 5 from being vertically transferred from the third lateral transfer path to the first and second lateral transfer paths 20. Similar to the first movable stopper 34, the movable stopper 34 is provided so as to be able to be raised and lowered between a lowered position that allows vertical transfer between the two movable stoppers 34 and 21.

Further, the contact portion of the movable stopper 34 , 35 with the pallet 5 is constituted by a roller supported rotatably around a vertical axis, and the pallet 5 that is laterally transferred through the second lateral transfer path 21 is connected to the movable stopper 34 . It also comes in contact with both sides to guide its lateral transfer.

In the parking device of this embodiment, the pallets 5 are arranged so that two empty spaces are created throughout the circulation path.

Therefore, in the above-mentioned parking device, for example, if there is an entry/exit section next to the intersection B1 of the first horizontal transfer path 20 and the first vertical transfer path 23, the pallet 5 to be carried out will be transferred to the first horizontal transfer path 23. and the second horizontal transfer path 21, the first and second both horizontal transfer paths 20.21 and the vertical transfer path 23.2.
The pallet 5 may be circulated in the same manner as in the first embodiment using the rectangular circulation path formed by the pallets 4 and 4. In other words, the above-mentioned circulation movement can be performed by providing an empty space at the diagonally intersecting portion of the circulation path. In this case, the first and second drive motors 25 and 26 are operated and the third drive motor 27 is stopped, and the pallet 5 is not vertically transferred between the first intersection point B and the second intersection point B2. Therefore, the first movable stopper 34 is placed in the collapsed position, and the second movable stopper 35 is placed in the upright position in order to prevent the pallet 5 from moving from the second intersection area B2 to the third intersection area B3.

On the other hand, when there is a pallet 5 to be carried out on the third lateral transfer path 22, first, the second lateral transfer path 21 and the third lateral transfer path 22 are
The pallet 5 is circulated using a rectangular circulation path composed of a vertical transfer path 23, 24, and a vertical transfer path 23,24. In this case, the second and third drive motors 26 and 27 are operated with the first movable stopper 34 in the upright position and the second movable stopper 35 in the collapsed position. By the movement, the pallet 5 is moved to the second intersection site B2 on the first vertical transfer path 23 side. Next, with the first movable stopper 34 in the down position and the second movable stopper 35 in the upright position, the first lateral transfer path 20 and the second lateral transfer path 2 are moved.
Pallet 5 using one empty space between 1 and 1
The pallet 5 may be moved to the first intersection B1 next to the loading/unloading section by single-row feeding. In this case, the first and second
This causes the drive motors 25 and 26 to operate.

Note that when the intervals between the first to third lateral transfer paths are equal, when the pallet is carried out from the third lateral transfer path, the first to third lateral transfer paths are
The pallet may be circulated using a rectangular circulation path including a third horizontal transfer path and a vertical transfer path. In other words, in this case, by setting all the movable stoppers to the collapsed position and synchronously operating the first to third drive motors, two pallets can be moved simultaneously to the adjacent horizontal transfer path in the vertical transfer path. It will be transported vertically.

Furthermore, it goes without saying that the present invention can also be applied to a case where four or more horizontal transfer paths are arranged in parallel.

[Brief explanation of drawings]

1 to 6 relate to Embodiment 1 of the present invention, FIG. 1 is a plan view of the parking device, and FIG. 2 is a partially cross-sectional view of the same parking device, with the roller drive mechanism omitted. Side view shown, third
The figure is an explanatory diagram showing the height relationship of the rollers, Figure 4 is a side view showing the operation of the eccentric roller, Figure 5 is a sectional view of the eccentric roller,
FIG. 6 is a graph showing changes in the vertical transport speed of pallets, FIG. 7 is a plan view of a parking device according to Embodiment 2 of the present invention, and FIG. FIG. 9 is a side view showing a conventional vertical transfer means with the mechanism omitted. 1, 2. 20-22... Lateral transfer path 3.4,
23.24... Vertical transfer path 5... Pallet 6... Horizontal transfer rail 7... Horizontal transfer means 8... Wheels 11. ... Drive roller 12 ... Free roller 13 ... Eccentric roller 14.25-27 ... Drive motor 34.35.
...Movable stopper As AI + A2 ...Intermediate portion B, Bl~
B3...Intersection site and other 2

Claims (3)

[Claims] (1) A plurality of lateral transfer paths arranged in parallel with each other, each extending in the lateral direction; A horizontal circulation parking device in which a circulation path for circulating a plurality of pallets on which vehicles are placed is formed by two vertical transfer paths extending in the direction, and each of the vertical transfer paths has an adjacent horizontal transfer path. A drive roller that supports the pallet at a position higher than the pallet support height on the horizontal transfer path and vertically transfers the pallet is disposed at an intermediate portion that does not intersect with the horizontal transfer path. At the intersection of the road and the horizontal transfer path, the center of rotation is eccentric with respect to the center of the roller, and due to rotation, the pallet support height moves up and down between a position lower and a higher position than the pallet support height in the horizontal transfer path. A horizontal circulation type parking device, characterized in that an eccentric roller is disposed to lift and transfer the pallet between the horizontal transfer path at the intersection part and the drive roller at the intermediate part. (2) Three or more horizontal transfer paths are provided, and the eccentric rollers provided at each intersection of the vertical transfer path and the horizontal transfer path are
2. A horizontal circulation parking system according to claim 1, wherein separate drive means are provided which are driven independently of each other. (3) Three or more lateral transfer paths are provided, and on both sides of the intermediate lateral transfer path provided between the lateral transfer paths at both ends, the lateral transfer paths on both sides of the intermediate lateral transfer path are a blocking position that abuts against a pallet vertically transferred from one of the horizontal transfer paths to prevent the pallet from being transferred to the other horizontal transfer path; and the intermediate horizontal transfer path and the other horizontal transfer path. 2. The horizontal circulation system according to claim 1, wherein a movable stopper is provided which is movable between the blocking position and a retracted position to permit vertical transfer of the pallet between the horizontal circulation and the retracted position. type parking device.