JP2007076756A - Transport device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transport device capable of moving the forefront of a transport conveyor from a warehouse quickly to the rear body of a truck even in case a step exists between the floor surface of the warehouse and the floor surface of the truck rear body. <P>SOLUTION: The transport device is equipped with a carriage 20 coupled with the forefront of the transport conveyor able to expand and contract in the transporting direction, a first wheel 61 installed at one end in the moving direction of the carriage 20 and movable in the vertical direction relative to the carriage 20, and a second wheel 62 installed nearer the other end in the moving direction of the carriage 20 than the first wheel 61 and movable in the vertical direction relative to the carriage 20, and even in case step exists between the floor surface MF of the warehouse and the floor surface TF of the rear body of the truck TR, the carriage 20 can be moved to the rear body of the truck TR by moving the wheels 61 and 62 in the vertical direction relative to the carriage 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transport device for transporting, for example, a pneumatic tire for an automobile from a warehouse into a truck bed.

In general, this type of transport device is provided in a warehouse and is connected to the front end of a transport conveyor that can be expanded and contracted in the transport direction and supported by two pairs of front and rear wheels. And the movable carriage is moved in the loading direction of the truck by moving the moving carriage from the warehouse into the loading platform of the truck, and the leading edge of the conveying conveyor is arranged in the loading platform of the truck. The thing is known (for example, refer patent document 1).
JP-A-7-228357

  Incidentally, since the height of the floor of the truck bed differs depending on the type of the truck, a step is generated between the floor of the warehouse and the floor of the truck bed. Therefore, in the transfer apparatus, a slope plate whose one end is raised and lowered according to the height of the floor surface of the loading platform is provided on the floor surface of the warehouse. For example, when the floor surface of the loading platform is higher than the floor surface of the warehouse, the slope plate One end side of the carriage is raised to a height equal to the floor surface of the loading platform, and the leading ends of the movable carriage and the conveyor are moved into the loading platform of the truck. For this reason, it is necessary to operate the slope plate in order to move the movable carriage into the truck bed, and there is a problem that it takes time for the operation of the slope plate.

  In addition, when the slope plate is not used, a spacer according to the height of the floor of the loading platform is arranged under the rear wheel of the truck, but it is necessary to replace the spacer according to the type of truck. There is a problem that it takes time for the spacer replacement work.

  The present invention has been made in view of the above-described problems, and the object of the present invention is to provide the inside of a truck bed from the warehouse even when a step is generated between the floor of the warehouse and the floor of the truck bed. Another object of the present invention is to provide a transport device that can move the front end of the transport conveyor in a short time.

  In order to achieve the above object, the present invention comprises a transport conveyor that can be expanded and contracted in the transport direction, and a movable carriage that is connected to the front end side of the transport conveyor and is movable in the transport direction of the transport conveyor. In the transfer device that can move the tip of the transfer carriage to any position in the transfer direction, the first wheel provided on one end side in the moving direction of the moving carriage, and the first wheel provided on the other end side in the moving direction of the moving carriage from the first wheel. There are provided two wheels, a first moving mechanism for moving the first wheel in the vertical direction with respect to the moving carriage, and a second moving mechanism for moving the second wheel in the vertical direction with respect to the moving carriage.

  As a result, the moving carriage is provided with wheels on one end side and the other end side in the moving direction, and each wheel moves in the vertical direction with respect to the moving carriage by each moving mechanism. If the floor of the loading platform of the truck that is provided and stops at one end in the moving direction of the moving carriage is lower than the floor of the warehouse, the moving carriage moves to one end in the moving direction, and the first wheel is the floor of the warehouse. The first wheel is moved downward, the moving carriage is further moved to one end in the moving direction, and the second wheel is separated from the floor of the warehouse and moved away from the floor. When placed above the floor surface, the second wheel can be moved downward to ground each wheel to the floor surface of the cargo bed, and the tip of the movable carriage and the conveyor can be moved into the truck bed. it can. That is, even when a step is generated between the floor of the warehouse and the floor of the truck bed, the movable carriage is moved into the truck bed by moving each wheel vertically relative to the movable carriage. be able to.

  According to the present invention, even when a step is generated between the floor surface of the warehouse and the floor surface of the truck bed, by moving each wheel in the vertical direction with respect to the movable carriage, the mobile carriage is loaded on the truck bed. Therefore, the front end of the conveyor can be moved from the warehouse side into the truck bed in a short time, which is extremely advantageous in improving work efficiency.

  1 to 8 show an embodiment of the present invention. FIG. 1 is a side view of a transfer device, FIG. 2 is a side view of a main part of the transfer device, and FIG. 3 is a view of the transfer device when moving in a warehouse. 4 and 5 are side views of the main part of the transfer device when moving from the warehouse into the truck bed, and FIG. 6 is the transfer when loading tires near the floor in the truck bed. FIG. 7 is a side view of the main part of the apparatus, FIG. 7 is a side view of the main part of the transport apparatus when loading tires near the top board in the truck bed, and FIG. 8 is a rear view of the truck. It is a principal part side view of the conveying apparatus at the time of stacking.

  The transport device of the present embodiment is provided in a warehouse for storing the tire TA, and is connected to the transport conveyor 10 that can be expanded and contracted in the transport direction and the front end side of the transport conveyor 10, and moves in the transport direction of the transport conveyor 10 A movable carriage 20 is provided.

  The conveyor 10 includes a first conveyor 11 fixed by a support 11 a provided on the floor of the warehouse, a second conveyor 12 supported by the first conveyor 11 so as to be movable in the conveying direction of the conveyor 10, And a third conveyor 13 supported by the two conveyors 12 so as to be movable in the conveyance direction of the conveyance conveyor 10. That is, when the second conveyor 12 and the third conveyor 13 move in the transport direction, the transport conveyor 10 expands and contracts in the transport direction. Each of the conveyors 11, 12, and 13 is a well-known roller conveyor. The conveyor 10 extends toward the track TR and is inclined downward from the warehouse toward the track TR. The truck TR is stopped with the back of the loading platform directed to the warehouse. That is, when the tire TA is placed on the first conveyor 11, the tire TA is conveyed to the loading platform side of the truck TR by the inclination of the conveyors 11, 12, and 13.

  The moving carriage 20 includes a carriage main body 30, a drive conveyor 31 fixed to the upper side of the carriage main body 30, a mounting conveyor 32 fixed to the carriage main body 30 and disposed on the front end side of the drive conveyor 31, and the moving carriage 20. The first tilting member 41 is provided on one end side in the moving direction and supported by the cart body 30 so as to be tiltable in the vertical direction, and is provided on the other end side in the moving direction of the moving cart 20 relative to the first tilting member 41. A second tilting member 42 supported by the main body 30 so as to be tiltable in the vertical direction, a first cylinder 51 as a first moving mechanism for tilting the first tilting member 41, and a second movement for tilting the second tilting member 42. A second cylinder 52 as a mechanism, a first wheel 61 provided on one end of the moving carriage 20 in the moving direction, and supported rotatably at one end of the first tilting member 41, and one end of the second tilting member 42 To be rotatable Provided between the second wheel 62 held, the third wheel 63 provided on the other end side in the moving direction of the moving carriage 20 with respect to the second wheel 62, and the first wheel 61 and the second wheel 63. It has the 4th wheel 64, the well-known motor 70 as a drive mechanism for driving the 1st wheel 61 and the 4th wheel 64, and the work bench | platform 80 which can mount an operator. Here, one movement direction is a direction from the warehouse toward the loading platform of the truck TR.

  The cart body 30 is made of a metal frame and is supported by the wheels 61, 62, 63, 64 so as to be movable in the transport direction of the transport conveyor 10.

  The drive conveyor 31 is disposed so as to extend in the transport direction of the transport conveyor 10 and a pair of frames 31a in the width direction and spaced from each other in the transport direction of the transport conveyor 10, and is rotatably supported by each frame 31a. And a plurality of rollers 31b. Each frame 31a is connected to the tip of the third conveyor 13 by a connecting member 31c. Each connecting member 31c is connected to each frame 31a so as to be rotatable in the vertical direction, and is connected to the third conveyor 13 so as to be rotatable in the vertical direction. Each roller 31b is driven by a motor (not shown). The drive conveyor 31 is inclined upward from the warehouse over the loading platform of the truck TR. That is, the drive conveyor 31 can convey the tire TA sent from the third conveyor 13 to the loading platform side of the truck TA.

  The loading conveyor 32 is disposed with a pair of width direction frames 32a provided so as to extend in the conveying direction of the conveying conveyor 10 and spaced from each other in the conveying direction of the conveying conveyor 10, and can be rotated by each frame 32a. And a plurality of supported rollers 32b. The loading conveyor 32 is inclined downward from the warehouse toward the loading platform of the truck TR. The placement conveyor 32 is provided with a stopper member 32c for restricting the movement of the tire TA. That is, the tire TA sent from the drive conveyor 31 is placed on the placement conveyor 32, and the movement of the truck TR toward the loading platform is restricted by the stopper member 32c.

  The first tilting member 41 is formed so as to extend in the moving direction of the movable carriage 20, and the center side in the length direction is supported by the carriage main body 30 so as to be tiltable in the vertical direction. One end side of the first tilting member 41 extends to one end side in the moving direction of the moving carriage 20, and the other end side of the first tilting member 41 extends to the other end side in the moving direction of the moving carriage 20.

  The second tilting member 42 is formed so as to extend in the moving direction of the movable carriage 20, and the center side in the length direction is supported by the carriage main body 30 so as to be tiltable in the vertical direction. One end side of the second tilting member 42 extends to one end side of the moving carriage 20 in the moving direction, and the other end side of the second tilting member 42 extends to the other end side of the moving carriage 20 in the moving direction.

  The first cylinder 51 is a well-known electric cylinder. One end of the first cylinder 51 is connected to the carriage body 30 so as to be rotatable in the vertical direction, and the other end is connected to the other end of the first tilting member 41 so as to be rotatable in the vertical direction. ing. The other end of the first cylinder 51 is the tip of the rod. That is, the movement of the rod of the first cylinder 51 causes the other end side of the first tilting member 41 to tilt in the vertical direction.

  The second cylinder 52 is a well-known electric cylinder. One end of the second cylinder 52 is connected to the carriage body 30 so as to be rotatable in the vertical direction, and the other end is connected to the other end portion of the second tilting member 42 so as to be rotatable in the vertical direction. ing. The other end of the second cylinder 52 is the tip of the rod. That is, the movement of the rod of the second cylinder 52 causes the other end side of the second tilting member 42 to tilt in the vertical direction.

  The first wheel 61 is composed of a pair of rubber tires that are spaced from each other in the width direction of the movable carriage 20, and is rotatably supported by one end of the first tilting member 41.

  The second wheel 62 is composed of a pair of rubber tires that are spaced from each other in the width direction of the movable carriage 20, and is rotatably supported at one end of the second tilting member 42. The second wheel 62 is disposed on the other end side in the movement direction of the movable carriage 20 with respect to the first wheel 61.

  The third wheel 63 is composed of a pair of rubber tires spaced from each other in the width direction of the movable carriage 20, and is rotatably supported by the carriage body 30.

  The fourth wheel 64 is composed of a pair of rubber tires spaced from each other in the width direction of the movable carriage 20 and is rotatably supported by the carriage body 30.

  The motor 70 is fixed to the cart body 30, and is provided on the first tilt member 41 so that the first chain 71 for transmitting the rotational force of the motor 70 to the fourth wheel 64 and the rotational force of the fourth wheel 64 can be rotated. The second chain 72 for transmitting to the sprocket 41a and the third chain 73 for transmitting the rotational force of the sprocket 41a to the first wheel 61 are provided.

  The work table 80 is provided on one end side in the moving direction of the movable carriage 20 and is fixed to the carriage body 30. The work table 80 is fixed to the cart body 30 so that the height of the chest from the waist of the worker on the work table 80 and the height of the tire TA on the loading conveyor 32 are substantially equal.

  The transport device configured as described above is used for loading tires TA in the warehouse onto a truck TR that is stopped with the rear of the loading platform facing the warehouse. The truck TR has a box-shaped cargo bed and opens a rear portion of the cargo bed for loading the tire TA. Further, the floor surface TF of the loading platform of the truck TR is lower than the floor surface MF of the warehouse.

  When the tires TA are loaded on the truck TR, first, as shown in FIG. 3, the vertical positions of the wheels 61, 62, 63, 64 with respect to the movable carriage 20 are equalized on the floor MF of the warehouse. The movable carriage 20 is moved to the truck TR side. That is, the movable carriage 20 is moved to one end side in the movement direction. Thereby, the conveyance conveyor 10 is extended in the conveyance direction.

  Next, as shown in FIG. 4, when the first wheel 61 is disposed above the loading platform away from the floor MF of the warehouse, the movable carriage 20 is stopped, and the first tilting member 41 is moved by the first cylinder 51. Tilt one end side downward. Thereby, the 1st wheel 61 currently supported by the one end part of the 1st tilting member 41 contacts the floor surface TF of a loading platform.

  Subsequently, as shown in FIG. 5, the movable carriage 20 is moved again to one end in the movement direction, and when the second wheel 62 is disposed above the loading platform away from the floor MF of the warehouse, the movable carriage 20 is stopped. The second cylinder 52 tilts one end side of the second tilting member 42 downward. Thereby, the 2nd wheel 62 currently supported by the one end part of the 2nd tilting member 42 contacts the floor surface TF of a loading platform. Further, the movable carriage 20 can move on the floor surface TF of the truck TR by the first wheel 61 and the second wheel 62.

  That is, even when the floor surface TF of the loading platform of the truck TR is lower than the floor surface MF of the warehouse and a step is generated between the floor surface MF of the warehouse and the floor surface TF of the loading platform, the first wheel 61 and the second wheel 62 Are moved in the up-down direction with respect to the movable carriage 20, respectively, so that the movable carriage 20 can be moved into the loading platform of the truck TR.

  Subsequently, the movable carriage 20 is placed at a predetermined position in the loading platform of the truck TR, and an operator on the work bench 80 loads the tire TA on the loading conveyor 32 on the loading platform of the truck TR. Here, the tire TA is transported to the placement conveyor 32 via the transport conveyor 10 and the drive conveyor 31.

  When the loading position of the tire TA is near the floor surface TF of the loading platform, the first wheel 61 and the second wheel 62 are moved upward with respect to the moving carriage 20 as shown in FIG. The vertical positions of 62, 63 and 64 are made equal. Thereby, the worker can easily load the tire TA near the floor surface TF of the loading platform.

  Further, when the loading position of the tire TA is near the top plate RF of the loading platform, as shown in FIG. 7, the first wheel 61 and the second wheel 62 are moved downward with respect to the moving carriage 20 to move the moving carriage. 20 is moved upward with respect to the floor TF of the truck TR. Thereby, the work table 80 moves upward together with the movable carriage 20, and the worker can easily load the tire TA near the top plate RF of the loading platform.

  Furthermore, when the loading position of the tire TA is near the top plate RF at the rear of the loading platform, the second wheel 62 is moved downward with respect to the moving carriage 20 and the first wheel 61 is moved as shown in FIG. Is moved below the second wheel 62. Thereby, the movable carriage 20 can be moved upward so as not to incline with respect to the floor TF of the loading platform, and the worker can easily load the tire TA near the top plate RF.

  As described above, according to the present embodiment, the moving carriage 20 connected to the front end of the transfer conveyor 10 that can be expanded and contracted in the transfer direction, and the moving carriage 20 are provided on one end side in the moving direction, and are moved up and down with respect to the moving carriage 20. A first wheel 61 that is movable in the direction, and a second wheel 62 that is provided on the other end side of the moving carriage 20 with respect to the first wheel 61 and that is movable in the vertical direction with respect to the moving carriage 20. Therefore, even when a step is generated between the floor surface MF of the warehouse and the floor surface TF of the loading platform of the truck TR, by moving the wheels 61 and 62 in the vertical direction with respect to the moving carriage 20, the moving carriage 20 can be moved into the bed of the truck TR. That is, it is not necessary to provide a slope provided on the floor MF of the warehouse and extending from the floor MF of the warehouse to the floor TF of the loading platform of the truck TR. Can be moved.

  In addition, the first tilting member 41 tilted in the vertical direction by the first cylinder 51 causes the first wheel 61 to move in the vertical direction with respect to the moving carriage 20 and tilted in the vertical direction by the second cylinder 52. The second tilting member 42 moves the second wheel 62 in the vertical direction with respect to the moving carriage 20, so that the vertical direction of each wheel 61, 62 is limited even when the vertical design space is limited. The amount of movement can be increased.

  Further, since the tilting members 41 and 42 are tilted by the cylinders 51 and 52, respectively, the tilting members 41 and 42 can be reliably tilted with a simple structure, thereby reducing the manufacturing cost and durability of the apparatus. This is extremely advantageous for improving the performance.

  Moreover, since the drive mechanism 70 for driving the first wheel 61 is provided, the movable carriage 20 can be moved without manual operation, and the work of arranging the front end of the transport conveyor 10 in the loading platform of the truck TR is easy. Can be done.

  In addition, since the work platform 80 on which the operator can be placed is provided on the movable carriage 20, when the movable carriage 20 is moved up and down with respect to the floor TF of the loading platform of the truck TR by the wheels 61 and 62, An operator on the work table 80 moves in the vertical direction together with the movable carriage 20. That is, the work table 80 can be moved in the vertical direction according to the vertical position at which the tire TA is loaded, which is extremely advantageous in reducing the burden on the worker 80. Further, since the work table 80 moves in the vertical direction together with the movable carriage 20, the height position of the tire TA on the loading conveyor 32 relative to the worker on the work table 80 does not change, and the burden on the worker is further increased. Can be reduced.

  Further, since the third wheel 63 is provided on the other end side in the moving direction of the moving carriage 20 with respect to the second wheel 62, for example, when the moving carriage 20 moves from the floor surface MF of the warehouse to the floor surface TF of the loading platform, Even when the two wheels 62 are not in contact with any of the floor surfaces MF and TF, the movable carriage 20 can be supported by the first wheels 61 and the third wheels 63. That is, even when the second wheel 62 is not in contact with the ground, the posture of the moving carriage 20 is stable, which is extremely advantageous in smoothly moving the moving carriage 20 from the warehouse to the truck TR.

  Furthermore, since the fourth wheel 64 is provided between the first wheel 61 and the second wheel 62, for example, when the moving carriage 20 moves from the floor surface MF of the warehouse to the floor surface TF of the cargo bed, the first wheel 61 Even if the floor is not in contact with any of the floor surfaces MF and TF, the movable carriage 20 can be supported by the second wheel 62 and the fourth wheel 64. That is, even when the first wheel 61 is not in contact with the ground, the posture of the moving carriage 20 is stable, which is extremely advantageous in smoothly moving the moving carriage 20 from the warehouse to the truck TR.

The side view of the conveying apparatus which shows one Embodiment in this invention Side view of main parts of transport device Side view of the main parts of the transfer device when moving in the warehouse Side view of the main part of the conveyor when moving from the warehouse to the truck bed Side view of the main part of the conveyor when moving from the warehouse to the truck bed Side view of the main parts of the conveyor when loading tires near the floor in the truck bed Side view of the main part of the conveyor when loading tires near the top plate in the truck bed Side view of the main part of the conveyor when loading tires near the top plate at the rear of the truck bed

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Conveyor, 11 ... 1st conveyor, 12 ... 2nd conveyor, 13 ... 3rd conveyor, 20 ... Moving cart, 30 ... Cart body, 31 ... Drive conveyor, 32 ... Loading conveyor, 41 ... 1st tilting member 42 ... 2nd tilting member, 51 ... 1st cylinder, 52 ... 2nd cylinder, 61 ... 1st wheel, 62 ... 2nd wheel, 63 ... 3rd wheel, 64 ... 4th wheel, 70 ... Drive mechanism, 71 ... motor, 80 ... work table, TA ... tyre, TR ... truck, MF ... floor surface of warehouse, TF ... floor surface of cargo bed, RF ... top plate of cargo bed.

Claims (6)

Equipped with a transfer conveyor that can be expanded and contracted in the transfer direction and a movable carriage that is connected to the front end side of the transfer conveyor and that can move in the transfer direction of the transfer conveyor. In a transport device
A first wheel provided on one end side of the moving carriage in the moving direction;
A second wheel provided on the other end side in the moving direction of the moving carriage with respect to the first wheel;
A first moving mechanism for moving the first wheel in a vertical direction with respect to the moving carriage;
And a second moving mechanism for moving the second wheel in a vertical direction with respect to the moving carriage. The first moving mechanism is supported by the moving carriage so as to be tiltable in the vertical direction, and a first tilting member that rotatably supports the first wheel at one end portion thereof, and the first tilting member is tilted in the vertical direction of the moving carriage. A first tilting mechanism,
The second moving mechanism is supported by the moving carriage so as to be able to tilt in the vertical direction, and a second tilting member that rotatably supports the second wheel at one end portion, and the second tilting member is tilted in the vertical direction of the moving carriage. The transport apparatus according to claim 1, comprising a second tilting mechanism. The transport device according to claim 1, further comprising a drive mechanism that drives at least one of the first wheel and the second wheel. The conveyance apparatus according to claim 1, 2, or 3, wherein a work table on which an operator can be placed is provided on the movable carriage. The transfer device according to claim 1, 2, 3 or 4, further comprising a third wheel on the other end side in the moving direction of the moving carriage with respect to the second wheel. The conveying device according to claim 1, 2, 3, 4 or 5, wherein a fourth wheel is provided between the first wheel and the second wheel.

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