JP2827133B2 - Wagon unloading device installed in elevator cage in wagon transport equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention is provided, for example, in hospitals and factories, etc., and provides documents such as medical supplies and medical records, or mechanical parts, tools, product materials, and semi-finished products in the process of being manufactured. The transported objects such as are stored in a relatively large wagon with casters, and this wagon is moved along a transport path configured by laying a plurality of conveyors,
Alternatively, between the floors of each floor of the hospital or factory, the robot is moved on a cage capable of vertically moving in an elevator connecting the floors, and the transferred object is moved to a predetermined room of a building, a work place, or the like. More particularly, the present invention relates to a wagon carrying device for carrying out the wagon to a floor of each floor from within a cage of the elevator.

<Conventional technology> As shown in FIGS. 9 (a) to 9 (c), this type of conventional wagon unloading device has a cage bottom 10 capable of vertically moving inside an elevator connecting floors of a building.
0, a base 102 provided with a pinion 101 that can rotate at the center thereof, and a rack surface 103 that can be engaged with the pinion 101 so that the rack 102 can reciprocate horizontally with respect to the base 102. It has one slide base 104 and a second slide base 105 which can slide with respect to the first slide base 104 and can be connected to the bottom of the wagon with casters. Then, after the cage reaches the floor of the predetermined floor, and the upper surface and the upper surface of the floor stop at the same height, the wagon in the cage is connected to the second slide base 105 and the second slide It was carried out with the sliding movement of the base 105 to the outside.

<Problems to be Solved by the Invention> By the way, when carrying out the above-described wagon, a preceding wagon waiting for being horizontally transported by a horizontal conveyor (not shown) is placed on an external floor near an elevator. It may be stopped. In such a case, in the above-described conventional wagon unloading device, the operation of unloading the succeeding wagon was performed while pushing out the preceding wagon with the second slide base 105. Therefore, there is a problem that the preceding wagon is flipped off by the second slide base 105 connected to the succeeding wagon and moves to a position that is inconvenient for the next conveyance by the horizontal conveyor. Further, in the above-described conventional transport device, since the pinion 101 and the rack surface 103 are used, the first slide base 104 is configured to slide the first slide base 104 to both sides of the pinion 101 on both sides thereof. Become. Therefore, since the moving stroke of the first slide base cannot be long, it is difficult to select a convenient position for the next horizontal transfer on the unloaded floor, and when the wagon is moved to a horizontal conveyor, it is difficult to select the position. Since the transfer to the horizontal conveyor cannot be performed as it is during the unloading operation, various facilities necessary for the transfer may have to be separately provided.

The present invention aims to solve the above problems,
It is another object of the present invention to provide a wagon unloading device provided in an elevator cage in a wagon transport facility that solves the problem.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention provides, for example, a chuck 34 as a connecting body that can be detachably connected to a hook 33 as a connected member attached to the wagons 6, 6a. A hook of the preceding wagon 6a attached to the end of the carry-out section and waiting on the predetermined floor 7
33, the chuck 34 of the carry-out section is connected to carry out the subsequent wagon 6.

Also, the first and second slide bases 8, which are a part of the unloading section, allow the wagon 6 in the cage 3 to be easily unloaded to predetermined positions on external floors 7, 7 located on both sides of the elevator 2.
9 to increase the travel stroke, for example, a wagon
Chucks 34, 34 which are detachably connected to hooks 33, 33 which are connected members attached to 6, 6a, are attached to both ends in the longitudinal direction of the first slide base 8, and are near both ends of the base 4. An endless timing belt 12 having a rack surface 11 on its outer surface is supported by a pair of pulleys 10 and 10 arranged in a movable manner so as to be able to circulate and move.
An end timing belt 20 having a rack surface 18 that can be engaged with and connected to the rack surface 11 of the endless timing belt 12 on the lower surface is fixed to a pair of fixing members 19 and 19 disposed near both ends.

Further, in order to ensure that the chuck 34 of the unloading section can be disengaged from the hook 33 of the wagon 6, 6a, for example, the hook
33 has a rod-shaped engaging portion extending in the width direction of the wagons 6, 6a, while the chuck 34 is configured to be able to move up and down, and has an L-shaped locking portion 35; At the tip, a displacement shaft 36 supported so as to be able to be displaced only inward and to always maintain an upright state is provided.
Are arranged so as to be in contact with the hook 33 in the ascending state and not in the descending state.

<Operation> Since the present invention is configured as described above, during the operation of unloading the wagon 6 from the cage 3 of the elevator 2,
Since the preceding wagon 6a existing outside is connected to the unloading section, the preceding wagon 6a can stop at a predetermined position without being flipped. Therefore, the preceding wagon 6a is on floor 7
It is possible to wait at a position convenient for the next conveyance by a horizontal conveyor (not shown) in the above.

In the present invention, when the unloading section slides out of the elevator 2, the endless timing belt 20 on the unloading section can slide and move to near the end of the endless timing belt 12 on the base 4 side. Stroke can be long. Therefore, a convenient position for the next conveyance by the horizontal conveyor can be selected in a wide range, which is advantageous in terms of layout.

The present invention is directed to the displacement shaft when the chuck 34 serving as a connecting body on the carrying-out portion abuts the hook 33 serving as a connected member of the wagon 6a.
When the hook 36 is displaced inward and the hook 33 is positioned inside the locking portion 35, the displacement shaft 36 returns to the upright state, and the chuck 34 and the hook 33 are connected to each other. The chuck 34 and the hook 33 can be automatically connected during the sliding movement of the chuck 34.

<Embodiments> Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

1 to 8 of the accompanying drawings show an embodiment of the present invention, and FIGS. 1 (a) to 1 (c) show an operation in which a wagon is carried out of an elevator cage to a predetermined floor. Front view of the unloading device and the wagon for explaining
(A) to (c) are schematic front views of the unloading device for explaining the operation of the unloading device, and FIG. 3 shows the connection state and positional relationship between the unloading device and the wagon by traversing the unloading device. FIG. 4 is an enlarged front view of the unloading device, FIG. 5 is an enlarged plan view of the same, FIGS. 6 (a) to 6 (e) are explanatory views of the connection and detachment operations of the chuck and the hook, FIG. 7 is an enlarged front view showing a main part of the first slide base, FIG.
The figure is a partially enlarged front view showing the linked state of the base and the first slide base.

As clearly shown in FIGS. 1 and 2, the unloading device 1 of the present embodiment includes a base 4 disposed on a bottom 3a of a cage 3 which can move vertically within an elevator 2 connecting each floor of a building. , Connected to the base 4 and casters 5,5
And an unloading unit for unloading the attached wagon 6 from inside the cage 3 of the elevator 2 to an external floor 7. The unloading section is configured to be slidable horizontally with respect to the base 4, and to be further horizontally slidable with respect to the first slide base 8 in the same direction. And a second slide base 9 which can be detachably connected to the bottom of wagons 6, 6a with casters 5.

As clearly shown in FIGS. 3, 4 and 8, the base 4 is buried in the bottom 3a of the cage 3 of the elevator 2 with its upper part being slightly exposed, and inside the vicinity of both ends in the longitudinal direction. The pulleys 10, 10 and the pulleys 10, 10 are arranged. The rack surface 11a and the outer surface are formed on the inner surface of the rack surface 11a, which is formed with a number of concave and convex strips extending in the width direction for meshing with the outer periphery of the pulleys 10, 10. An endless timing belt 12 having a rack surface 11 similar to the rack surface 11a, a motor 15 connected to a transmission pulley 13 provided on the one pulley 10 by a transmission belt 14, and guide rails provided on both sides in the width direction.
Consists of 16,16.

2 to 5, FIG. 7, and FIG. 8, the first slide base 8 is connected to the guide rails 16 of the base 4 so as to be slidable in the longitudinal direction. The guide rails 17, 17 and a rack surface 18 that can mesh with the rack surface 11 of the endless timing belt 12 of the base 4 are formed on the lower outer surface, and are supported by fixing members 19, 19 disposed at both longitudinal ends thereof. The end portion of the end timing belt 20 and the sprocket 21 disposed at the right end in the longitudinal direction (FIGS. 2 and 5) of the intermediate portion are put on the intermediate portion, and the left ends of the base 4 and the second slide base 9 (FIGS. The chain 21a having both ends fixed thereto (FIG. 5) and a position slightly shifted in the width direction of the second slide base 9 at the left end in the longitudinal direction (FIG. 2 and FIG. 5). Sprockets 22 placed
The intermediate part, and the base 4 and the second slide base 9
And a chain 22a having both ends fixed to each right end (FIGS. 2 and 5). That is, as shown in FIG.
One of the above chains 21a (shown by a dashed line)
Is the first slide base 8 from the left end of the base 4 in FIG.
It is turned back through the right end sprocket 21 and fixed to the left end of the second slide base 9. Also, the other chain 22a
2 (shown by a two-dot chain line) is folded back from the right end of the base 4 through the sprocket 22 at the left end of the first slide base 8 and fixed to the right end of the second slide base 9. The unloading device 1 configured as described above drives the second slide base 9 by driving the endless timing belt 12 of the base 4.
Is moved horizontally, for example, to the left with respect to the base 4, when the chain 22a between the right end of the base 4 and the sprocket 22 is moved.
At the same time, the chain 22a between the sprocket 22 and the right end of the second slide base 9 is shortened, so that the second slide base 9 also slides horizontally to the left, as shown in FIG. 2 (b). State. When the first slide base 8 is moved horizontally to the right with respect to the base 4, contrary to the above case, the chain 21a operates in the same manner as described above, and the first slide base 8 and the second slide base 8 are moved. The slide base 9 moves to the right, and the state shown in FIG.

Since the endless timing belt 12 of the base 4 and the endless timing belt 20 of the first slide base 8 are both formed of a belt material, they each slightly expand and contract in the longitudinal direction. Therefore, a situation where the respective rack surfaces 11 and the rack surfaces 18 do not surely mesh with each other may occur. In this embodiment, an adjustment mechanism for extending and contracting the end timing belt 20 is provided so that such a situation does not occur. As shown in FIG. 7, the adjusting mechanism fixes the end of the timing belt 20 with the fixing member 23 when the one fixing member 19 is turned upward, and the other fixing member is the other fixing member. When the end 19 is folded upward, the end of the end timing belt 20 is held by a movable holding body 24, and the holding body 24 is fixed so as to be pulled in a horizontal direction by a screw 24a. In other words, by rotating the screw 24a, if the end of the end timing belt 20 is strongly pulled, the end timing belt 20 slightly expands, and conversely, if the end is loosened, the end timing belt 20 contracts. The rack surfaces 11 of the endless timing belt 12 can be reliably engaged with each other. Further, in this embodiment,
An engagement holding mechanism for ensuring the engagement between the rack surface 11 and the rack surface 18 is provided. The meshing and holding mechanism includes a fourth
7, a holding plate 25 arranged along the lower side of the endless timing belt 12 of the base 4 as shown in FIG. 7 and FIG.
The first slide base 8 includes a holding body 26 disposed along the upper end of the end timing belt 20 and the rack surface 11.
With the rack surface 18 meshed with the endless timing belt
12 and the end timing belt 20 are regulated so as not to separate from each other.

As clearly shown in FIGS. 3 to 6, the aforementioned second slide base 9 is a guide rail of the first slide base 8.
Guide rails 27, 27 on both sides linked to be slidable in the longitudinal direction at 17, 17, a pair of plate-like guide plates 28, 28 erected at predetermined intervals on the guide rails 27, 27, Pulleys 29, which are pivotally supported near the longitudinal ends of the guide plates 28, 28,
An endless belt 31 having a rack surface 31a on an outer surface for connecting with a connecting tool 30 at the bottom of the wagon 6 and a circulating movement of the endless belt 31
A motor 32 (see FIG. 5) connected to one of the pulleys 29 by a transmission belt 32a and a pair of hooks 33, 3 provided at both ends in the longitudinal direction, one pair in the width direction at both ends of the wagon 6.
3, and two pairs of chucks 34, 34 and two chucks 34, 34 each arranged in the width direction at both ends in the longitudinal direction so as to be detachably engaged with the hooks 33, 33 (only one pair is shown in FIG. 3). 34
(Only one set is shown in FIG. 3). The chuck
34 uses a substantially L-shaped locking portion 35 and a linear spring (not shown) so that the outer end of the locking portion 35 can be used as a fulcrum and can be rotationally displaced only inward. And a displacement shaft 36 capable of maintaining the state. The connecting tool 30 has a rack surface that can be removably engaged with the rack surface 31a of the endless belt 31, connects the endless belt 31, and moves the wagon 6 by circulating the endless belt 31. it can. Further, the chucks 34, 34 at both ends on one side are integrally formed at both ends of an elevating rod 37 which can be raised and lowered by an elevating mechanism, and those at both ends on the other side are provided as separate bodies, respectively, in the width direction. Chucks 34, 34 paired with
34 are connected by connecting rods 38, 38, respectively (see FIGS. 4 and 5). Then, as shown in FIGS. 6A to 6E, before the unloading unit starts the unloading operation,
From the state of FIG. 6 (a), it rises by a certain distance as shown in FIG. 6 (b). When the unloading operation starts and the chuck 34 comes into contact with the hook 33, the displacement shaft 36 falls down inward (see FIG. 6C), and when the hook 33 reaches the base 35 side, the displacement shaft 36
Is returned to the original standing state by the urging force of a linear spring (not shown), so that the chuck 34 and the hook 33 are connected (see FIG. 6 (d)). When the unloading operation is completed, the chuck 34 is lowered, and the connection between the chuck 34 and the hook 33 is released (see FIG. 6 (e)). As shown in FIGS. 3 to 5, the elevating mechanism of the elevating rod 37 is provided with rollers 39, 39 abutting on the lower edge of the elevating rod 37 at the ends thereof, and the lower end thereof is provided on the one guide plate 28. Pivotally displaceable on the outer surface,
A pair of links 40, 40 provided at a fixed interval from each other,
As interposed between the rollers 39, 39, the interlocking plate 41 whose both ends are rotatably connected to the rotation shafts of the rollers 39, 39, and the outer peripheral surface abuts the lower edge of the interlocking plate 41, Axis 42
And a cam plate 43 that can rotate around the center. As shown in FIG. 4 and FIG.
The ascending / descending operation is guided by up / down guides 44 provided between the elevating rod 37 and the guide plate 28 in the vicinity of both ends of the one guide plate 28. The up-down guide 44 includes a pair of guided rods 45, 45 fixed to the lifting rod 37.
And the guide plate 28 is positioned between the guided rods 45, 45.
And a locking plate 4 which is provided integrally below the guide rod 46 and can lock the lower ends of the guided rods 45, 45.
Consists of seven. Incidentally, the elevating rod 37 shown in FIGS. 4 and 5 is at the lowered position.

In FIG. 5, reference numeral 48 denotes a motor for rotating the shaft 42, which can be rotated forward and backward. In FIG. 3, reference numerals 49, 49 denote guide rollers attached to the bottom of the wagons 6, 6a, which are configured to roll in contact with the outer surfaces of the guide plates 28, 28, so that the wagons 6, 6a are horizontal. This is for guiding so as to be able to move correctly along the transport path.

The operation of the embodiment configured as described above will be described.

When the cage 3 in the elevator 2 carrying the wagon 6 stops on a predetermined floor 7, the motor of the base 4 is moved in a state where the connecting member 30 at the bottom of the wagon 6 and the endless belt 31 of the second slide base 9 are connected. The rotation of 15 causes the pulleys 10, 10 and the endless timing belt 12 to circulate. When the endless timing belt 12 circulates and moves, the first slide base 8 has the rack surface 18 of the endless timing belt 20 meshed with the rack surface 11 of the endless timing belt 12, for example, as shown in FIG. As shown in b), the second slide base 9 slides leftward with respect to the first slide base 8 at the same time by the above-described operation of the chain 22a,
The wagon 6 is carried out to a floor 7 near the elevator 2. When the preceding wagon 6a is stopped to be transported to the floor 7 by a horizontal conveyor (not shown) (see FIGS. 1A to 1C), the second slide base 9 The chucks 34, 34 provided on the leading end side of the subsequent wagon 6 in the traveling direction of the subsequent wagon 6 are connected to the hooks 33,
33 (see FIGS. 6 (c) and (d)). Therefore, the leading wagon 6a and the trailing wagon 6 are respectively connected to the second slide base 9, and when the leading wagon 6a and the trailing wagon 6 reach predetermined positions on the floor 7, the endless timing belt 12 of the base 4 moves. Is stopped and the lifting rod 37 is lowered to release the connection between the chucks 34, 34 and the hooks 33, 33. Subsequently, the endless timing belt 12 of the base 4 is rotated in the direction opposite to the direction at the time of unloading to return to the original state.

The present invention is not limited to the above-described embodiment. For example, in the present embodiment, the carry-out unit is constituted by the first slide base 8 and the second slide base 9; Alternatively, only the base 9 may be provided, and the rack surface 18 may be formed on the lower outer surface, and the end timing belts 20, 20 may be fixed to fixing members 19, 19 disposed at both ends in the longitudinal direction. In this case, it is not necessary to provide the chains 21a and 22a. In addition, although the sliding movement direction of the unloading unit is both directions in the above-described embodiment,
It may be configured to move in only one direction. further,
The lifting mechanism of the chucks 34 may use another mechanism using a cylinder or the like.
The connection mechanism between the hook 33 and the connected member may be changed to a different mechanism from that of the above-described embodiment. In addition, in the above embodiment, in order to connect the wagon 6 and the second slide base 8, the connecting tool 30 and each rack surface of the endless belt 31 are configured to mesh with each other. A plurality of hooks may be provided on the wagon 6, and another mechanism may be used, such as a pin provided on the bottom of the wagon 6 so that the hook and the pin can be disengaged.

<Effect> Since the present invention is configured as described above, during the operation of unloading the wagon from the elevator cage, the unloading of the preceding wagon stopped on the external floor at the position where the subsequent wagon should be unloaded. The leading wagon can be stopped at a predetermined position without being flipped. Therefore, the preceding wagon can be kept waiting at a position convenient for the next transport by the horizontal conveyor on the floor. Further, when the carry-out section slides out of the elevator, the end timing belt on the carry-out section can be displaced to near the end of the endless timing belt on the base side, so that the movement stroke can be lengthened. Therefore, it is possible to select a wide range of convenient locations for transportation by the horizontal conveyor, and when transferring to the horizontal conveyor, it is possible to transfer the wagon as it is to the horizontal conveyor as it is, without separately providing various facilities required for the transfer. This is also advantageous in terms of layout, for example. further,
When the chuck on the unloading device abuts the hook on the wagon side, the displacement shaft is displaced inward, and when the hook is located inside the base portion, the displacement shaft returns to the upright state, and the chuck as the connecting body and the connected member Since the barrel hook is connected, there is an effect that the chuck and the hook can be automatically connected during the sliding movement of the unloading section to the outside of the elevator.

[Brief description of the drawings]

FIGS. 1 to 8 of the accompanying drawings show an embodiment of the present invention, and FIGS. 1 (a) to 1 (c) illustrate an operation in which a wagon is carried out from a cage in an elevator to a floor. 2 (a) to 2 (c) are schematic front views of the unloading device for explaining the operation of the unloading device, and FIG. 3 is a longitudinal view of the unloading device. 4 is an enlarged front view of the unloading device, FIG. 5 is an enlarged plan view of the same, and FIGS. 6 (a) to 6 (e) are enlarged front views showing the connection state and positional relationship between the unloading device and the wagon. FIG. 7 is an enlarged front view showing a main part of a first slide base, and FIG. 8 is a partially enlarged front view showing a connected state of a base and a first slide base. It is. 9 (a) to 9 (c) are schematic front views for explaining the operation of the conventional example. 1: unloading device, 2: elevator, 3: cage, 3a: bottom, 4
... base, 5: caster, 6,6a: wagon, 7: floor,
8: first slide base, 9: second slide base, 10: pulley, 11, 11a, 18: rack surface, 12: endless timing belt, 16, 17, 27: guide rail, 19: fixing member, 20: Ended timing belt, 28: guide plate, 33: hook, 34: chuck, 35: locking part, 36; displacement shaft, 37: lifting rod

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naofumi Osaki 1-12-3 Yushima Yushima, Bunkyo-ku, Tokyo Co., Ltd. Inside Japan Shooter (72) Inventor Yoshinobu Sunaga 1-12-3 Yushima, Bunshima-ku, Tokyo Co., Ltd. In Japan Shooter (56) References JP-A-63-282092 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) B66B 17/16-17/20 B66B 11/02

Claims (3)

(57) [Claims] 1. A base arranged at the bottom of a cage capable of vertically moving within an elevator connecting floors in a vertical direction, and a wagon with wheels on the base so as to be moved to a floor outside the elevator. In a wagon unloading device provided in an elevator cage in a wagon transport facility having an unloading portion provided so as to be reciprocally movable in a horizontal direction, the unloading portion detaches from a connected member attached to the wagon at at least one end in the moving direction. Having a connecting body that can be connected as much as possible, and connecting the connected body of the unloading section to a connected member attached to a preceding wagon waiting on a predetermined floor, while discharging the subsequent wagon. A wagon unloading device installed in the elevator cage of the featured wagon transport facility. 2. A base arranged at the bottom of a cage which is vertically movable in an elevator connecting the floors in a vertical direction, and a wagon with casters is mounted on the base so as to be movable to a floor outside the elevator. In a wagon unloading device provided in an elevator cage in a wagon transport facility having an unloading portion provided so as to be able to reciprocate in a horizontal direction, the unloading portion is detachably connected to a connected member attached to the wagon. While having a body at both ends in the longitudinal direction, a pair of pulleys arranged near both ends of the base support an endless timing belt having a rack surface on the outer surface so as to be able to circulate, and a pair of fixed members arranged near both ends of the carry-out portion. A timing member having on its lower surface a rack surface which can be engaged with and connected to a rack surface of the endless timing belt. Wagon unloading device provided in the elevator cage in the wagon conveying equipment, characterized in that to fix the belt. 3. The connected member of the wagon is a hook having a rod-shaped engaging portion extending in the width direction of the wagon, while the connecting member of the carrying-out portion is an L-shaped engaging portion, and Displaceable only inward at the tip of the stop portion, and, at all times, a chuck provided with a displacement shaft that is supported so as to be able to maintain an upright state, the chuck is configured to be able to move up and down, 3. The displacement shaft according to claim 1, wherein the displacement shaft is arranged so as to abut on the connected member in an ascending state and not in an ascending state. A wagon unloading device provided in an elevator cage in the wagon transport facility described in the above item.