JPH11229654A - Slat conveyor and transport carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slat conveyor and a transport carriage having high safety and high space efficiency. SOLUTION: A plurality of slat members 30, 31 are circulated and driven, and a slat conveyor 20 transporting a transport substance mounted on the transport substance mounting face of each slat member 30, 31 is attached to the slat member 31. A stopper member 32 projected from the transport substance mounting face and a lift mechanism 35 projecting the stopper member 32 upward from the transport substance mounting face are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slat conveyor and a carriage having the slat conveyor.

[0002]

2. Description of the Related Art Conventionally, techniques in such a field include:
Japanese Unexamined Utility Model Publication No. 6-40284 discloses a vehicle disclosed in Japanese Utility Model Laid-Open Publication No. 6-40284, which is applied to a multistory parking lot. The transport vehicle includes a plurality of wheels that roll on guide rails provided on a transport path, and travels with a vehicle mounted between an entrance / exit port and a parking section. The front wheels of the vehicle are supported by a front-wheel traverse conveyor provided on the transport trolley, and the rear wheels of the vehicle are supported by a rear-wheel traverse conveyor. Each of these conveyors is a roller conveyor driven by a motor in a direction perpendicular to the traveling direction of the transport vehicle (left and right of the transport vehicle).

[0003] When a vehicle is transferred between a transport trolley and an entrance / exit port or each parking section, both conveyors are operated simultaneously by rotating the motor forward or backward. Further, a front wheel locking means for locking the front wheels of the automobile is provided on the front-wheel traverse conveyor. The front wheel locking means slides two wheel holding members formed in a wedge-shaped cross section independently from the front and rear of the front wheel, and holds the front wheel of the vehicle between the two wheel holding members. Thereby, when the transport vehicle carrying the vehicle travels from the entrance / exit port to the parking section, it is possible to restrict the vehicle from moving in the front-rear direction on the transport vehicle.

[0004]

However, in the above-mentioned prior art, the stopper (front wheel locking means) for restricting the movement of the conveyed article is provided on the conveyor (front-wheel lateral feed conveyor), so that the safety is reduced. There were issues in terms of space efficiency and space efficiency. That is, in the above-described transport vehicle applied to the multi-story parking lot, the stopper, that is, the front wheel locking means always protrudes from the upper surface of the conveyor (transport vehicle), and the upper surface of the transport vehicle is not completely flat. When the occupant has to walk near the transport trolley, the stopper sometimes hinders the occupant from walking, in particular, the passage of a wheelchair and the infant. In addition, it is necessary to secure a space for providing a stopper on the upper surface of the transport vehicle.

Accordingly, an object of the present invention is to provide a slat conveyor and a transport trolley having high safety and high space efficiency.

[0006]

According to a first aspect of the present invention, there is provided a slat conveyor for driving a plurality of slat members in a circulating manner to convey a load placed on a load mounting surface of each slat member. A stopper member attached to the slat member and capable of protruding from the load-bearing surface, and a lift mechanism for projecting the stopper member upward from the load-bearing surface.

According to a further aspect of the present invention, there is provided a transport trolley capable of carrying a load in a first direction and transporting the load in a second direction.
A slat conveyor for circulating and driving the plurality of slat members, and transporting the load placed on the load carrying surface of each slat member in the second direction; and a stopper member attached to the slat member and capable of projecting from the load mounting surface. And a lift mechanism for projecting the stopper member upward from the load-carrying surface.

[0008] In the slat conveyor and the transport carriage provided with the slat conveyor, for example, a conveyed object is mounted on the conveyed object mounting surface of the slat member, but the conveyed object is conveyed without circulating the slat members. In the case where (transfer) is not performed, the lift mechanism is operated to cause the stopper member to protrude from the load-carrying surface. As a result, since the stopper member protruding from the load carrying surface comes into contact with the load, the load is securely held on the conveyor surface, and
The movement of the conveyed object in the direction perpendicular to the conveying direction (the longitudinal direction of the slat member) is reliably restricted. When carrying (transporting) a load carried on the load carrying surface, the lift mechanism is not operated, and the stopper member does not protrude from the load carrying surface. Thereby, the conveyed article can be smoothly transported (transferred). Further, if the lift mechanism is not operated when no load is loaded on the load mounting surface, the upper surface of the slat member, that is, the conveyor surface is kept flat.

[0009] For example, it is preferable to apply the transport vehicle provided with the slat conveyor as a transport vehicle in a multistory parking lot. In this case, the stopper member provided on the slat member functions as a bogie, and reliably restricts the vehicle mounted on the carrier from moving back and forth on the carrier while the carrier is traveling. can do. In addition, when the operation of the lift mechanism is released when the carriage is stopped, the stopper member does not protrude from the load-carrying surface, so that the slat conveyor can be operated to transfer the vehicle to a parking space or the like. If the stopper member does not protrude from the load-carrying surface, the conveyor surface becomes flat, and the stopper member does not hinder the occupant's walking. Further, by providing the slat conveyor with a stopper member functioning as a bogie, a space for providing the bogie on the upper surface of the transport vehicle becomes unnecessary.

[0010] In this case, it is preferable that the stopper member is attached to a slat member which is separated from each other at a predetermined interval among a plurality of slat members. Under such a configuration, for example, every three slat members are provided with stopper members. By arranging the appropriate number of stopper members in accordance with the type of the conveyed article, the number of the stopper members and the number of the slat members to which the stopper members are attached is reduced, so that the manufacturing cost of the slat conveyor can be reduced. it can.

It is preferable that the lift mechanism has a width corresponding to a predetermined number of slat members, and that only the upper stopper member protrudes upward from the load-carrying surface. If such a configuration is adopted, it is necessary to operate as many stopper members as necessary to hold the conveyed object on the conveyor surface or to regulate the movement of the conveyed object according to the type of the conveyed object. Can be. For example, when a transport trolley equipped with the slat conveyor is applied as a transport trolley in a multilevel parking lot, the lift mechanism is provided below the slat member on which the front wheels of the automobile are mounted. Thus, only the stopper member that should be brought into contact with the front wheel of the automobile can be projected from the load-carrying surface among all the stopper members.

Further, it is preferable that a guide member is further provided to cover the one end of the upper circulating path of the slat member from the one end of the upper circulating path to the other end of the upper circulating path along the conveyed object mounting surface and support the stopper member. With such a configuration, the stopper member comes into contact with the guide member when the slat member driven by circulation passes through the side circulation path and the lower circulation path. No longer protrude laterally or downwardly. Therefore,
The slat conveyor can be operated smoothly.

Further, it is preferable that the stopper member is rotatably supported around a mounting shaft mounted on the slat member along the transport direction of the load. By employing such a configuration, it is possible to extremely easily form the stopper member that can protrude from the transported object mounting surface. Further, a stopper that operates reliably can be realized with a simple structure.

Further, it is preferable that the lift mechanism comprises a driven portion fixed to the stopper member and extending downward, and a driving portion which is in contact with the driven portion and which can move up and down with respect to the load carrying surface. Under such a configuration, in conjunction with the ascending operation of the driving portion corresponding to the cam, the driven portion in contact with the driving portion also moves upward. Then, since the stopper member is rotated around the mounting axis by the movement of the driven portion, the distal end of the stopper member protrudes from the load-carrying surface. Thus, the stopper member can be reliably operated with a simple structure.

Preferably, two stopper members are provided for each slat member, and the mounting shaft is disposed at a predetermined interval in the center of the slat member.
Under such a configuration, the stopper member protrudes in a V-shape from the load carrying surface. Thus, for example, when transporting a cylindrical transported object, the transported object can be reliably held on the conveyor surface, and the movement of the transported object can be reliably restricted. For example, if a transport vehicle equipped with this slat conveyor is applied as a transport vehicle in a multilevel parking lot, the stopper member will function as a bogie that clamps the wheels of the vehicle from the front and back, and is mounted on the transport vehicle. It is possible to reliably restrict the moved vehicle from moving back and forth on the upper surface of the transport vehicle while the transport vehicle is traveling.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a slat conveyor and a carriage according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view showing an example of a multi-story parking lot to which the carrier according to the present invention is applied. An entry / exit port 51 for an automobile 60 (see FIG. 9) to enter / exit is provided on the entry / exit floor of the multi-story parking lot 50 shown in FIG. An elevator 52 is arranged beside the entrance / exit port 51,
The car 60 that has entered the entrance / exit 51 is transferred to the elevator 52. A conveyor 51 composed of a slat conveyor, a roller conveyor or the like for supporting a front wheel 61 and a rear wheel 62 of an automobile 60 is provided at the entrance / exit port 51 and the elevator 52.
a and 52a are arranged side by side in two rows. Access port 51
Delivery of the vehicle 60 between the vehicle and the elevator 52 is performed by operating these conveyors 51a and 52a. The car 60 is transported by the elevator 52 between the entrance / exit and the parking floor.

Each of the parking floors is provided with a plurality of parking sections 53 for accommodating the automobiles 60.
Is transported to a predetermined parking section 53. On each parking floor of the multi-story parking lot 50, two parking section rows 54 in which parking sections 53 are arranged side by side are provided in parallel. The automobiles 60 are accommodated in the respective parking sections 53 in a state of being connected to each other in front and rear. In each parking section 53, two rows of conveyors 53a are arranged side by side. When the vehicle 60 is transferred between the transport vehicle 1 and each parking section 53, these conveyors 53a are operated.
A transport path 55 serving as a travel path of the transport trolley 1 is formed between the two parking section rows 54 provided in parallel. In the transport path 55, two guide rails 56 are laid in parallel, and the transport trolley 1 is mounted on the parking section 5 along the guide rails 56 in a state in which an automobile 60 as a load is mounted.
3 can be moved in the juxtaposed direction (first direction).

As shown in FIG. 1, the carriage 1 is equipped with a slat conveyor 20 and a roller conveyor 40 which are driven in a direction (second direction) perpendicular to the running direction. Slat conveyor 20 and roller conveyor 4
0 are on the same plane, and the car 60
A front wheel 61 is supported by the slat conveyor 20 and a rear wheel 62
Are mounted on the carrier 1 while being supported by the roller conveyor 40. That is, the slat conveyor 20 and the roller conveyor 40 function as a mounting portion on which the automobile 60 as a conveyed object is mounted. Carriage 1 and elevator 52
Alternatively, when the vehicle 60 is delivered to and from each parking section 53, the conveyor 52a of the elevator 52 or the parking section 5
The third conveyor 53a is operated, and at the same time, the slat conveyor 20 and the roller conveyor 40 are operated. Thereby, the transport trolley 1 can transfer the automobile 60 as a transported object to each of the parking sections 53 and the elevators 52 arranged on the left and right.

The slat conveyor 20 and the roller conveyor 40 are fixed to the frame 2 of the carrier 1 as shown in FIG. As shown in the figure, the frame 2 includes two vertical frame members 3 extending in parallel with each other on the same plane, and two horizontal frame members 3 fixed to the front end and the rear end of each vertical frame member 3. It is composed of a frame member 4 and a reinforcing frame (not shown), and is configured as a rectangular frame. The vertical frame member 3 and the horizontal frame member 4 are made from a long square pipe. In addition, each vertical frame member 3
, A bearing portion 6 for supporting the wheel 5 is arranged one by one in the front and rear. Therefore, the bearings 6 are arranged at the four corners of the frame 2.

As shown in FIG. 3, the wheel 5 includes a metal wheel 5a and a urethane tire 5b mounted around the wheel 5. By providing the urethane tire 5b, transmission of the generated vibration to the building or the like of the multi-story parking lot is mitigated. The wheels 5 disposed at the rear of the transport vehicle 1 are driven by a traveling drive unit 16 installed on a base plate passed between the left and right vertical frame members 3. As a result, the transport vehicle 1 mounts the automobile 60 on the slat conveyor 20 and the roller conveyor 40 as mounting units, and the multi-story parking lot 50 is mounted via the four wheels 5.
Can travel on a guide rail 56 laid on the transport path 55 of the vehicle.

The bearing portion 6 includes a bearing frame 7 having a U-shaped cross section as shown in FIG. The bearing frame 7 is arranged with the opening facing upward. An axle 9 is mounted on the upper part of the bearing frame 7 via a bearing 8.
Are rotatably supported. The wheel 5 is fixed to an end of the axle 9. Inner surface of the side wall of the bearing frame 7,
The vertical frame member 3 is inserted into a space partitioned by the inner surface of the bottom wall and the bearing 8 (axle 9). At both end sides of the vertical frame member 3, the bottom wall is removed over a predetermined region, and the portion from which the bottom wall is removed is disposed in the bearing frame 7 as shown in FIG. 3.

The vertical frame member 3 is connected to a bearing frame 7 of each bearing 6 via an air spring 10 as an elastic member. This air spring 10
It is a step bellows type air spring. The air spring 10 is inserted into the vertical frame member 3 from a portion where the bottom wall of the vertical frame member 3 is removed. The upper end of the air spring 10 is fixed to the inner surface of the upper wall of the vertical frame member 3. The lower end of the air spring 10 is fixed to the inner surface of the bottom wall of the bearing frame 7 via the pedestal 11. The air spring 10 is connected to the preload chamber 13 via an air control valve or the like. As shown in FIG.
The preload chamber 13 is housed inside the vertical frame member 3 between the front and rear bearings 6. In addition, related devices (not shown) such as an air compressor for supplying air are fixed on a base plate extending between the left and right vertical frame members 3. Further, an air release valve (not shown) is attached to the air spring 10.

When the carrier 1 travels, the preload chamber 1
Air is supplied from 3 to extend the air spring 10. At this time, the vertical frame member 3 is, as shown in FIG.
The bearing frame 7 rises from the inner surface of the bottom wall. In this case, the weight of the slat conveyor 20 and other peripheral devices supported by the frame, the weight of the automobile 60, and the like all act on the air cylinder 10 as sprung weights. The generated vibration can be suppressed very effectively. It is sufficient that the stroke of the air spring 10 is about 30 mm.

On the other hand, when the air release valve is opened and the air cylinder 10 is completely contracted, the vertical frame member 3 descends, and its bottom surface is formed on the shoulder of the pedestal 11, as shown in FIG. Abuts on the upper surface of the vehicle height adjustment stopper 12. The vehicle height adjusting stopper 12 is formed by lowering the shoulder of the pedestal 11 by one step, and can be formed extremely easily. The upper surface of the vehicle height adjustment stopper 12 and the bearing frame 7
Are lower than the height of the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40 and the height of the conveyor surfaces of the elevator 52 and the parking space 53 when the vertical frame member 3 is completely lowered. Are determined to match.

As a result, when the air spring 10 is contracted, the frame 2 is positioned in the height direction, and at the same time, the slat conveyor 20 and the roller conveyor 40 fixed to the frame 2 are also positioned in the height direction. Therefore, when the vehicle 60 is transferred between the transport trolley 1 and the elevator 52 or the parking space 53, the height of the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40 and the height of the conveyor surfaces of the elevator 52 and the parking space 53 Can be easily and reliably matched. The bearing frame 7 may be used as the vehicle height adjustment stopper 12. In this case, when the air spring 10 is contracted to bring the bottom surface of the vertical frame member 3 into contact with the inner surface of the bottom wall of the bearing frame 7, the height of the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40, the height of the elevator 52 The air cylinder 10 and the like may be arranged so that the height of the conveyor surface of the parking section 53 matches the height of the conveyor section.

As described above, in the transport trolley 1, the frame 2 that receives a load such as a load and the bearing portion 6 that supports the axle 9 are provided.
Are connected via an air spring 10 as an elastic member. Therefore, the vibration generated due to the rolling of the wheel 5 and the vibration generated when the wheel 5 gets over the seam of the guide rail 56 are absorbed by the air spring 10 functioning as a suspension. Therefore, the vibration generated when the transport trolley 1 travels is reduced, and as a result, the vibration transmitted to the vehicle 60 as a transported object and the building of the multi-story parking lot 50 provided with the transport trolley 1 can be reduced. . Further, since the air spring 10 is used as the elastic member functioning as a suspension, the control thereof is easy.

As shown in FIG. 5, a coil spring 14 may be used as the elastic member. Thereby, the mechanism for preventing vibration can be formed as a simple and inexpensive mechanism. In this case, as shown in the drawing, an air cylinder 15 may be provided inside the coil spring 14 as a vehicle height adjusting mechanism for determining the frame height. In this case, the height of the frame may be determined by raising the vertical frame member 3 against the urging force of the elastic member by the air cylinder 15. The frame height may be determined by descending against the urging force of the member.

Even with such a configuration, when the vehicle 60 is transferred between the transport vehicle 1 and the elevator 52 or the parking space 53, the height of the transport vehicle 1 and the height of the elevator 52 or the parking space 53 are increased. It is easy to match the sizes. Note that, instead of the air cylinder 15, a hydraulic cylinder or a device driven by a motor may be used. Further, even when the air spring 10 is used as the elastic member, a vehicle height adjusting mechanism using such an air cylinder, a hydraulic cylinder or the like is provided in the bearing 6, and the vertical frame member 3 is biased by the elastic member. The height of the frame is determined by raising it against the vertical frame member 3.
May be determined against the urging force of the elastic member to determine the frame height.

Next, the slat conveyor 20 according to the present invention will be described.
Will be described.

As shown in FIG. 6, the slat conveyor 20 includes an endless chain 24 circulatingly driven by a sprocket 23, and a plurality of slat members 30, 31 continuously attached to the endless chain 24. The sprocket 23 is attached to a drive shaft and a driven shaft (neither is shown) supported by mutually facing conveyor frames 21 and 22 formed of channel members. The endless chain 24 includes a chain guide 2 fixed inside the conveyor frames 21 and 22.
1a and 22a (see FIG. 8), and are spun and driven by rotating a sprocket 23 attached to a drive shaft by a conveyor drive unit 29 including a motor, a speed reduction mechanism, and the like. Note that the conveyor driving section 29 is fixed on a base plate provided between the slat conveyor 20 and the roller conveyor 40.

As shown in FIG. 7, the endless chain 24 is a roller chain in which roller links 25 and pin links 26 are connected alternately and continuously. As shown in the drawing, attachments 2 for attaching slat members 30, 31 are provided on inner link plates 25a, 26a forming roller links 25 and pin links 26.
5b and 26b are formed. This attachment 2
5b and 26b are formed by extending the center of the bottom of the link plates 25 and 26 and bending the extended portions at right angles. Therefore, the inner link plates 25a and 26a have an L-shaped cross section.

The slat members 30, 31 are attached to the mounting bolt 2
8a and the inner link plate 2 via the nut 28b
5a, 26a are fixed to the attachments 25b, 26b. As shown in FIG. 2 and FIG.
Are fixed to the endless chain 24 in a state where they are separated from each other at a predetermined interval. That is, the slat conveyor 20 is provided with every third slat member 31. Therefore, between the two slat members 31, 2
The number of slat members 30 will be arranged.

As shown in FIG. 7, the slat members 30, 3
1 is made from a long square pipe. The overall length of the slat members 30, 31 is set to be somewhat longer than the outer diameter of the front wheel 61 so that the front wheel 61 of the automobile 60 can be supported with a margin. Also, the slat member 30,
For example, the width of the slat member 31 is determined such that the width of the four slat members 30, 31 corresponds to the width of the front wheel of a general automobile 60. The upper surface of the slat member 30 is
The transported object mounting surface 30a on which the front wheel 61 is mounted.
Similarly, the upper surface of the slat member 31 is also attached to the front wheel 6 of the automobile 60.
The slat member 31a is further provided with a rectangular opening 31b in the slat member 31a. The opening 31b has one end at one end and the other end in the longitudinal direction of the slat member 31.
Each is provided.

Each of the slat members 31 is provided with two stopper members 32 which can protrude from the conveyed object mounting surface 31a through the opening 31b and function as a car stop for the automobile 60 mounted on the transport vehicle 1. Can be The stopper member 32 is formed from a short square pipe as shown in FIG.
1b is set slightly shorter than the opening length, and the entire width is equal to the opening 3
The opening height of the slat member 31 is set slightly shorter than the opening width of the slat member 31. Also, mounting holes 32a are provided on both side surfaces of the stopper member 32.
Are drilled. The stopper member 32 is housed inside the slat member 31 via the opening 31. And
The mounting shaft 34 is inserted through the mounting hole 32 and the mounting hole 31c formed at a predetermined interval near the center of the slat member 31. The mounting shaft 34 extends in the transport direction of the vehicle 60, that is, in the operation direction of the slat conveyor 20. Thereby, the stopper member 32 is rotatably supported by the slat member 31 via the mounting shaft 34.

The stopper member 32 is provided with a driven leg 33 which constitutes a lift mechanism 35 for projecting the stopper member 32 upward from the load carrying surface 31a.
As shown in FIG. 7, the driven leg 33 is
And a rubber roller 33b rotatably supported by the support portion 33a via a pin 33c. The support portion 33a extends in a direction (downward in the figure) perpendicular to the longitudinal direction of the stopper member. . Support section 33a
Is fixed at a position separated by a predetermined distance from the mounting hole 32 toward the endless chain 24. As a result, when the driven leg 33 is lifted, the stopper member 32 rotates around the mounting shaft 34, so that the stopper member 32 can easily and reliably protrude from the load-bearing surface 31a.

As described above, two stopper members 32 are provided for each slat member, and the mounting shaft 34 is
The slat member 31 is disposed at a central portion of the slat member 31 at a predetermined interval. Therefore, if the driven leg 33 is lifted, the stopper member 32 projects in a V-shape from the load carrying surface 31a. Therefore, the stopper member 32 is
The vehicle 60 mounted on the transport trolley 1 will function as a car stop that clamps the front wheel 61 of the vehicle 0 from the front and rear.
However, it is possible to reliably prevent the front-rear movement on the upper surface of the transport vehicle 1 while the transport vehicle 1 is traveling. Further, a stopper member 32 functioning as a car stop is provided on the slat conveyor 20.
Is provided, a space for providing a bogie on the upper surface of the transport vehicle 1 becomes unnecessary.

As shown in FIGS. 7 and 8, the driven leg 33
Protrudes downward from the bottom surface of the slat member 31 via a rectangular opening 31d formed in the bottom surface of the slat member 31. The entire length of the opening 31d is set shorter than the entire length of the opening 31b. Thereby, the slat member 31
However, when it is located in the upper circulation path of the slat conveyor 20, the bottom surface of the stopper member 32 contacts the inner surface of the bottom wall of the slat member 31a. Further, as described above, the overall height of the stopper member 32 is set slightly shorter than the overall height of the slat member 31. Therefore, when the slat member 31 is located in the upper circulation path, the upper surface of the stopper member 32 and the load mounting surface 31a are substantially flush with each other. Opening 31
The roller 33b of the driven leg portion 33 protruding from the upper surface d is provided with a lift driving plate 3 which can move up and down with respect to the load carrying surfaces 30a, 31a of the slat members 30, 31 located in the upper circulation path.
Contact 6

The lift driving plate 36 includes the slat member 30,
It is a plate disposed between the upper circulation path 31 and the lower circulation path 31 in parallel with the load carrying surfaces 30a, 31a. That is, as shown in FIG. 6, the lift driving plate 36 includes a lowermost point (roller 33 b) of the driven leg 33 fixed to the stopper member 32 located in the upper circulation path, and a stopper located in the lower circulation path. It is arranged between the uppermost point of the member 32. As shown in FIG. 2, the slat conveyor 20 is provided with two lift driving plates 36 at predetermined intervals with a center line in the longitudinal direction of the carriage being interposed therebetween.
The distance between the centers of the two lift driving plates 36 in the transport direction of the slat conveyor 20 is approximately equal to the length of the wheel span of the vehicle 60 to be mounted. Also, lift drive plate 3
6 is a predetermined number (for example, 6) of slat members 30
It has a width corresponding to (31). As a result, only the stopper member 32 located above the lift driving plate 36 projects upward from the load carrying surface 31a, and the front wheel 6
As a result, the number of stopper members 32 required to hold the front wheels 61 of the automobile 60 can be operated.

The lift driving plate 36 is provided on the conveyor frame 2.
Projections protrude from the openings 21b and 22b formed in the carriages 1 and 22 in the front-rear direction of the carriage. At both ends of the lift driving plate 36, shafts 37a of air cylinders 37 fixed to the conveyor frames 21 and 22 are fixed. In addition,
The device for raising the lift driving plate 36 is the air cylinder 3
The apparatus is not limited to 7, and a device driven by a hydraulic cylinder or a motor may be used. By actuating the air cylinder 37, the lift driving plate 36 is moved to the load carrying surface 30 of the slat members 30, 31 located in the upper circulation path.
a, 31a.

As a result, as shown in FIG. 8, in conjunction with the lifting operation of the lift driving plate 36 corresponding to the cam, the driven leg 3 is brought into contact with the lift driving plate 36 via the roller 33b.
3 also moves upward smoothly. Then, the stopper member 32 is rotated around the mounting shaft 34 by the movement of the driven leg 33, so that the end of the stopper member 32 on the endless chain 24 side protrudes from the load carrying surface 31a.
As described above, the lift mechanism 35 including the driven leg 33 and the lift driving plate 36 has a simple structure and can reliably operate the stopper member 32.

Further, the slat conveyor 20 is provided with a guide member 38 for supporting the stopper member 32 so as to cover the side of the side circulation path of the slat members 30, 31 and the lower part of the lower circulation path (FIG. 9). 6). The guide member 38 covers from one end of the upper circulation path of the slat members 30, 31 to the other end of the upper circulation path via the lower circulation path along the load carrying surfaces 30a, 31a. In the carrier 1, one narrow guide member 38 is fixed to each of the conveyor frame 21 and the conveyor frame 22 so as to cover both ends of the slat members 30 and 31. The entire conveyor surface of the slat members 30 and 31 may be covered with a guide member 38 corresponding to the length between the frame 22 and the guide member 38. Accordingly, when the slat member 31 driven to be circulated passes through the side circulation path and the lower circulation path, the stopper member 32 comes into contact with the guide member 38, so that the stopper member 32 is moved from the load mounting surface 31a. It does not protrude laterally or downward. Therefore, the slat conveyor 20 can be operated smoothly. Note that a resin sheet or the like having a smooth surface may be adhered to the upper surface of the guide member 38.

On the other hand, the roller conveyor 40 is a roller 4 rotatably supported by a conveyor frame 22 and a conveyor frame 42 which are shared with the slat conveyor 20.
2 is driven to rotate by a chain 43. The chain 43 is circulated by the conveyor drive unit 29. Therefore, if the conveyor driving unit 29 is rotated forward or backward, the roller conveyor 40 is driven simultaneously and in the same direction as the slat conveyor 20. Roller 4
2 is the slat member 3 of the slat conveyor 20
The length is set longer than the total length of 0 and 31. Thus, when the front wheel 61 of the vehicle 60 is placed on the slat conveyor 20, the rear wheel 62 is reliably placed on the roller conveyor 40 regardless of whether the distance between the axles of the vehicle 60 is short or long. Can be. The conveyor on which the rear wheel 62 is placed is not limited to a roller conveyor, but may be a slat conveyor, a belt conveyor, or the like.

As shown in FIG. 2, a horizontal cover plate portion 21c extends from the upper end of the conveyor frame 21 toward the front of the carrier 1. Further, the conveyor frame 22 has a U-shaped cross section, and the central cover plate portion 22c covers the upper part of the conveyor driving portion 29. Further, from the upper end of the conveyor frame 41 of the roller conveyor 40, a horizontal cover plate portion 41 is formed.
c is extended toward the rear of the carrier 1. Each of the cover plate portions 21c, 22c, 41c is substantially at the same level as the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40. Therefore, the stopper member 3
2 does not protrude from the load carrying surface 31a,
The entire upper surface of the carrier 1 is almost completely flat.

Thus, the transport vehicle 1 can be applied to, for example, a (three-dimensional) parking lot in which the transport vehicle directly enters the entrance / exit port, and the vehicle 60 is placed on the transport vehicle 1 by the driver's operation. . In this case, the stopper member 3
In a state in which the vehicle 2 does not protrude from the load carrying surface 31a, the upper surface of the transport vehicle 1 is almost completely flat, so that the vehicle 60 can be smoothly placed on the transport vehicle 1 by the operation of the occupant. There is no risk of breaking the member 32. Further, since the upper surface of the transport vehicle 1 is almost completely flat, the occupant who gets off the vehicle or gets into the vehicle can walk very smoothly. In particular, high safety can be ensured even when a wheelchair passes or an infant walks.

Hereinafter, with reference to FIG.
The transport procedure of the vehicle 60 at 0 will be described. Here, a case will be described as an example where a car that has entered a warehouse is transported to a predetermined parking section.

First, when the automobile 60 enters the entrance / exit port 51 and the front wheels 61 and the rear wheels 62 are positioned on the conveyor 51a provided at the entrance / exit port, the conveyor 51a and the conveyor 52a provided in the elevator 52 are provided. Is activated. Thereby, the automobile 60 is transferred from the entrance / exit port 51 to the elevator 52, and is also conveyed by the elevator 52 to a predetermined parking floor. Elevator 5
When 2 stops, the transport trolley 1 provided on the parking floor is moved to the side of the elevator 52.

When the transport vehicle 1 arrives at the side of the elevator 52, the conveyor 52a, the slat conveyor 20, and the roller conveyor 40 are operated, and the automobile 60 is transferred from the elevator 52 to the transport vehicle 1. At this time, the air spring 10 of the transport vehicle 1 is completely contracted, and the heights of the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40 are equal to the height of the conveyor surface of the conveyor 52a. When the center lines of the automobile 60 and the transport vehicle 1 in the longitudinal direction substantially coincide with each other, the conveyor 52a,
The slat conveyor 20 and the roller conveyor 40 are stopped.

In this state, the lift mechanism 35 is operated to raise the stopper 32 member. First, the air cylinder 37 is operated to raise the lift driving plate 36. As a result, in conjunction with the lifting operation of the lift driving plate 36, the driven leg 33, which comes into contact with the lift driving plate 36 via the roller 33b, also smoothly moves upward. The movement of the driven leg 33 causes the stopper member 32 to move
Since the stopper member 32 rotates around, as shown in FIG. 9, the stopper member 32 projects from the load carrying surface 31a (conveyor surface). As a result, the front wheels 61 of the automobile 60 are sandwiched by the two stopper members 32, and the traveling preparation of the carrier 1 is completed.

The air control valve is opened and the preload chamber is opened at the time when the vehicle 60 is transferred to the transport vehicle 1, before the transport vehicle 1 starts running, at the same time as the travel starts, or after the travel starts. Air is supplied from 13 to the air spring 10. As a result, the air spring 10 extends as shown in FIG. 3, so that the frame 2 of the carrier 1 is in a state of being raised from the inner surface of the bottom wall of the bearing frame 7.
In this state, the transport trolley 1 carries the vehicle 60 from the elevator 52 to a predetermined parking section 53 while traveling.

During the traveling of the carrier 1, vibrations caused by the rolling of the wheels 5 and vibrations generated when the wheels 5 cross over the joints of the guide rails 56 are absorbed by the air spring 10 functioning as a suspension. Is done.
Therefore, the vibration generated when the transport vehicle 1 travels is reduced, and consequently, the vehicle 60 or the transport vehicle 1
It is possible to reduce the vibration transmitted to the building of the multistory parking lot 50 provided with. During the travel of the transport trolley 1, the air control valve is appropriately operated to adjust the amount of air supplied to the air spring 10 so that the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40 (the carrying surfaces 30 a and 31 a). ) Is always kept horizontal. On the other hand, a front wheel 61 of an automobile 60 mounted on the transport vehicle 1
Is held by the two stopper members 32 protruding from the load carrying surface 31a, so that the forward and backward movement of the vehicle 60 during the traveling of the transport trolley 1 is reliably restricted.

The air control valve is closed before the transporting vehicle 1 approaches the parking section 53 where the automobile 60 is to be parked and starts deceleration, simultaneously with the start of deceleration, or at any timing after the start of deceleration. By opening the air release valve, the air spring 10 is completely contracted. As a result, the frame 2 of the transport trolley 1 descends with respect to the bearing frame 7, and the bottom surface of the vertical frame member 3, as shown in FIG.
It comes into contact with the upper surface of the vehicle height adjustment stopper 12. In this state, the height of the conveyor surfaces of the slat conveyor 20 and the roller conveyor 40 matches the height of the conveyor surface of the parking space 53.

When the carriage 1 arrives at the side of the parking section 53 and stops, the operation of the lift mechanism 35 is released, and
The stopper member 32 is lowered. As a result, the upper surface of the stopper member 32 is substantially at the same level as the load carrying surface 31a, and the conveyor surface is flat. Then, the slat conveyor 20, the roller conveyor 40, and the conveyor 53a of the parking section 53 are operated, and the automobile 60 is accommodated in the parking section 53. The transport trolley 1 waits until the next entry / exit instruction is issued. Note that the procedure for leaving a car in the multi-story parking lot 50 is performed in the same manner as the procedure described above.

The slat conveyor 20 and the carriage 1 described above may be applied to uses other than the multi-story parking lot. For example, if a slat conveyor for transporting a transported object having a cylindrical shape, and a transport trolley, the transported object is reliably held on the conveyor surface by the stopper member,
Since the movement of the conveyed goods is surely restricted, and the conveyor itself has the stopper member, it is possible to realize a slat conveyor and a transport vehicle with high safety and space efficiency.

Further, if the number of the stopper members 32 and the size (width) and number of the lift mechanisms 35 are appropriately determined according to the type of the conveyed article, the number of the stopper members and the number of the slat members to which the stopper members are attached is reduced. Since the number of lift mechanisms is also reduced, the manufacturing cost of the slat conveyor can be reduced. In addition, the slat conveyor 20
A stopper member 32 may be provided for all the slat members 30 and 31 included in.

[0056]

The trolley provided with the slat conveyor and the slat member according to the present invention is constructed as described above, and therefore has the following effects. That is, by providing the slat conveyor with a stopper member that can protrude from the load-bearing surface of the slat member and a lift mechanism that protrudes the stopper member upward, the slat conveyor and the conveyance having high safety and high space efficiency are provided. A truck can be realized.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a parking lot to which a transport vehicle according to the present invention is applied.

FIG. 2 is a perspective view showing a transport vehicle according to the present invention.

FIG. 3 is a partial cross-sectional view illustrating a main part of the transport vehicle of FIG. 2;

FIG. 4 is a partial cross-sectional view illustrating a main part of the transport vehicle of FIG. 2;

FIG. 5 is a partial cross-sectional view showing another embodiment of the transport vehicle.

FIG. 6 is a sectional view showing a slat conveyor according to the present invention.

FIG. 7 is a perspective view showing a main part of the slat conveyor of FIG. 6;

FIG. 8 is a partial sectional view showing a main part of the slat conveyor of FIG. 6;

FIG. 9 is a plan view showing a procedure for transporting the automobile in the multi-story parking lot of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conveyance trolley, 2 ... Frame, 5 ... Wheel, 6 ... Bearing part, 9 ... Axle, 10 ... Air spring (elastic member), 1
2 ... Vehicle height adjustment stopper, 20 ... Slat conveyor, 3
0, 31: slat member, 30a, 31a: load carrying surface, 32: stopper member, 33: driven leg (driven portion),
Reference numeral 34: mounting shaft, 35: lift mechanism, 36: lift drive plate (drive unit), 37: air cylinder, 38: guide member,
50: Multi-storey parking lot, 60: Car, 61: Front wheel.

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[Procedure amendment]

[Submission date] February 15, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 8

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0002

[Correction method] Change

[Correction contents]

[0002]

2. Description of the Related Art Conventionally, techniques in such a field include:
Japanese Unexamined Utility Model Publication No. 6-40284 discloses a vehicle disclosed in Japanese Utility Model Laid-Open Publication No. 6-40284, which is applied to a multistory parking lot. The transport vehicle includes a plurality of wheels that roll on guide rails provided on a transport path, and travels with a vehicle mounted between an entrance / exit port and a parking section. The front wheels of the vehicle are supported by a front-wheel traverse conveyor provided on the transport trolley, and the rear wheels of the vehicle are supported by a rear-wheel traverse conveyor. Each of these conveyors is a roller conveyor driven by a motor in a direction perpendicular to the traveling direction of the transport vehicle (left and right of the transport vehicle).

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

According to a first aspect of the present invention, there is provided a slat conveyor for driving a plurality of slat members in a circulating manner to convey a load placed on a load mounting surface of each slat member. A stopper member attached to the slat member and capable of protruding from the load carrying surface so as to regulate movement of the load in a direction perpendicular to the carrying direction; and a lift for projecting the stopper member upward from the load carrying surface. And a mechanism.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

According to a further aspect of the present invention, there is provided a transport trolley capable of carrying a load in a first direction and transporting the load in a second direction.
A slat conveyor for circulating the plurality of slat members and transferring the load placed on the load mounting surface of each slat member in the second direction, and a slat conveyor attached to the slat member and moving the load in the first direction. A stopper member is provided which can protrude from the load carrying surface so as to regulate, and a lift mechanism which causes the stopper member to protrude upward from the load carrying surface.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] In the slat conveyor and the transport carriage provided with the slat conveyor, for example, a conveyed object is mounted on the conveyed object mounting surface of the slat member, but the conveyed object is conveyed without circulating the slat members. In the case where (transfer) is not performed, the lift mechanism is operated to cause the stopper member to protrude from the load-carrying surface. As a result, since the stopper member protruding from the load carrying surface comes into contact with the load, the load is securely held on the conveyor surface, and
The movement of the conveyed object in the direction perpendicular to the conveying direction (the longitudinal direction of the slat member) is reliably restricted. When carrying (transporting) a load carried on the load carrying surface, the lift mechanism is not operated, and the stopper member does not protrude from the load carrying surface. Thereby, the conveyed article can be smoothly transported (transferred). Further, if the lift mechanism is not operated when no load is loaded on the load mounting surface, the upper surface of the slat member, that is, the conveyor surface is kept flat.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

As shown in FIG. 1, the carriage 1 is equipped with a slat conveyor 20 and a roller conveyor 40 which are driven in a direction (second direction) orthogonal to the traveling direction. Slat conveyor 20 and roller conveyor 4
0 are on the same plane, and the car 60
A front wheel 61 is supported by the slat conveyor 20 and a rear wheel 62
Are mounted on the carrier 1 while being supported by the roller conveyor 40. That is, the slat conveyor 20 and the roller conveyor 40 function as a mounting portion on which the automobile 60 as a conveyed object is mounted. Carriage 1 and elevator 52
Alternatively, when the vehicle 60 is delivered to and from each parking section 53, the conveyor 52a of the elevator 52 or the parking section 5
The third conveyor 53a is operated, and at the same time, the slat conveyor 20 and the roller conveyor 40 are operated. Thereby, the transport trolley 1 can transfer the automobile 60 as a transported object to each of the parking sections 53 and the elevators 52 arranged on the left and right.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction contents]

The stopper member 32 is provided with a driven leg 33 which constitutes a lift mechanism 35 for projecting the stopper member 32 upward from the load carrying surface 31a.
As shown in FIG. 7, the driven leg 33 is
And a rubber roller 33b rotatably supported by the support portion 33a via a pin 33c and fixed in a direction (downward in the figure) orthogonal to the longitudinal direction of the stopper member. . Support section 33a
Is fixed at a position separated by a predetermined distance from the mounting hole 32 toward the endless chain 24. As a result, when the driven leg 33 is lifted, the stopper member 32 rotates around the mounting shaft 34, so that the stopper member 32 can easily and reliably protrude from the load-bearing surface 31a.

Claims (8)

[Claims] 1. A slat conveyor for circulating and driving a plurality of slat members to convey a load placed on a load mounting surface of each of the slat members, wherein the slat conveyor is attached to the slat member and can protrude from the load mounting surface. A slat conveyor, comprising: a stopper member; and a lift mechanism for projecting the stopper member upward from the load-carrying surface. 2. The slat conveyor according to claim 1, wherein the stopper member is attached to a slat member of the plurality of slat members that is separated from each other at a predetermined interval. 3. The lift mechanism has a width corresponding to a predetermined number of the slat members, and causes only the stopper member located above to protrude upward from the transported object mounting surface. 3. The slat conveyor according to 1 or 2. 4. A guide member covering the one end of the upper circulating path of the slat member from the one end of the upper circulating path to the other end of the upper circulating path along the conveyed object mounting surface and supporting the stopper member. 2. The method according to claim 1, wherein
The slat conveyor according to any one of claims 1 to 3. 5. The apparatus according to claim 1, wherein the stopper member is rotatably supported around a mounting shaft mounted on the slat member along a transport direction of the conveyed object.
A slat conveyor according to any one of claims 1 to 4. 6. The lift mechanism includes a driven portion fixed to the stopper member and extending downward, and a driving portion that is in contact with the driven portion and that can move up and down with respect to the transported object mounting surface. The slat conveyor according to claim 5, characterized in that: 7. The slat member according to claim 2, wherein the stopper member is provided two by two for each slat member, and the mounting shaft is disposed at a predetermined distance from a central portion of the slat member. A slat conveyor according to claim 5 or 6, wherein 8. A transport cart capable of carrying a load in a first direction and transporting the load in a second direction, wherein a plurality of slat members are driven to circulate to transport each of the slat members. A slat conveyor for transferring the conveyed object placed on the object mounting surface in the second direction; a stopper member attached to the slat member and capable of protruding from the conveyed object mounting surface; And a lift mechanism for projecting upward from the carrier.