JP5784850B1 - Basket cart transport device - Google Patents

Abstract

The present invention provides a cart transport apparatus that does not require digging a pit under the floor, allows the floor surface and the transport surface to be continuous, and can smoothly transport the cart with a small amount of power. A drive unit for transporting the car between the car carts 1 is provided on the floor surface, and the drive unit includes a car car right side contact driving unit 6 and a car cart left side contact driving unit 7, and the car cart The right side contact driving unit 6 and the car cart left side contact driving unit 7 are arranged such that driving tires 8 each having a driving shaft in the vertical direction are arranged in pairs with their running surfaces facing each other. The driving tire 8 of the contact driving unit 6 rotates rightward while being brought into contact with the traveling surface of the car cart 1 below the right side surface of the cart 1 by a spring force, and at the same time, the driving tire 8 of the car cart left side surface driving unit 7 is rotated. The driving tire 8 is rotated counterclockwise while being in contact with the traveling surface of the car cart 1 below the left side surface of the car cart 1 by a spring force, thereby conveying the car cart 1 in the traveling direction of the transport path. [Selection] Figure 3

Description

  The present invention relates to a cart transport apparatus having a simple structure in which it is not necessary to dig a pit under the floor and the floor surface and the transport surface are continuous. In particular, the cart transportation apparatus according to the present invention can be suitably used as a basket carriage front-packing apparatus that can sequentially arrange and arrange the carts after the carriage car that has been stopped.

  2. Description of the Related Art Conventionally, many carts for carrying a large number of small luggage are used. Such a cart is moved to a work position by being pushed by a human hand in order to take out or load a load. However, frequent movement of a large number of carts has a problem in terms of work efficiency due to the heavy burden of human labor.

  In consideration of such a problem, many conveyor systems that move a cart without depending on human effort have been proposed (see Patent Documents 1 to 3). Patent Documents 1 to 3 are all systems that carry a carriage on a conveyor having a drive chain, and propose a system that can easily retract the carriage from a conveyance line. In the systems of Patent Documents 1 to 3, the chain conveyor is divided to have a plurality of areas, and spacers are provided in the gaps between the chain conveyors to smoothly transfer the carriage.

  However, since the systems of Patent Documents 1 to 3 use a chain conveyor to transport the cart, it is necessary to dig a pit below the floor in order to make the conveyor transport surface and the floor surface (loading path) continuous. There was a problem that the degree of freedom was low and it could not be easily introduced into existing facilities. In addition, since a cart full of luggage is placed on the conveyor for transport, a large drive source is required, which increases the equipment cost. In addition, the spacer provided in the gap between the chain conveyors is likely to cause a certain level difference between the transport surface and the spacer due to an assembly error, and if the wheel of the carriage is not properly aligned, the wheel will make the level difference well. There was a problem that the carriage could not be overcome and the truck was clogged.

Patent No. 5107471 Patent No. 5107472 Japanese Patent No. 5173046

  The present invention has been made to solve the above-described problems of the prior art, and its purpose is that there is no need to dig a pit under the floor, the floor surface and the conveying surface are continuous, and it is easy even for existing facilities. It is an object of the present invention to provide a cart transport apparatus that can be introduced into the car and that can transport the car cart smoothly with small power and has a simple structure and low equipment cost.

  As a result of intensive studies to achieve the above object, the present inventor does not carry the cart on the chain conveyor as in the prior art, but drives the drive tires below the right and left sides of the cart, respectively. It has been found that the cart can be easily forwarded with a relatively small amount of power by the method of transporting while pressing with a spring force and rotating in contact. Moreover, since this method does not provide a drive unit below the conveyance surface, it has been found that there is no need to dig a pit under the floor, and the floor surface and the conveyance surface can be easily made continuous.

This invention is made | formed based on said knowledge, and has the structure of the following (1)-(7).
(1) A plurality of substantially rectangular parallelepiped-shaped carts including a wheeled panel, a front panel, a rear panel, an opposing right side panel, and a left side panel that surround and surround the front panel are transported to the top of the car. A cart carriage pre-packing device in which subsequent carts after the carriage transport is stopped are sequentially packed, and a drive unit for transporting the cart is provided on the floor surface. A car cart right side contact driving part and a car cart left side contact driving part respectively provided on the right side and the left side of the transport path, the car cart right side contact driving part and the car cart left side contact driving part are respectively A drive tire having a drive shaft in a vertical direction, and the drive tire of the car cart right side contact driving unit and the drive tire of the car cart left side contact driving unit are directed toward each other with their traveling surfaces facing each other. The drive tire of the right side contact driving part of one of the paired car carts that exists in a pair on a straight line perpendicular to the traveling direction of the cart is pressed against the lower side of the right side surface of the cart by a spring force. The driving tire of the other left side contact driving unit of the cart that is paired with the other side of the car is left in contact with the traveling surface pressed by the spring force below the left side of the car cart. A basket cart pre-packing device that rotates and thereby transports a cart that is pressed by a pair of these drive tires in the traveling direction of the transport path.
(2) At least two pairs of driving tires for the right side contact driving unit of the cart and the left side contact driving unit of the cart are provided, and these pairs are arranged in the traveling direction of the transport path. The basket cart front-packing device according to (1), characterized in that it is provided with a distance between drive shafts equal to or less than the length of the side surface in the traveling direction.
(3) A photoelectric sensor is provided to detect that the tip of the cart reaches a straight line within 1 meter before the straight line connecting the first pair of driving tires on the transport path of the cart. (1) or (2), which is characterized in that the cart stuffing device.
(4) When the conveyance is each car truck that is stopped sequentially in a predetermined scheduled position at predetermined longitudinal intervals, the tip of the cage base vehicle reaches the front within 50cm in the traveling direction from the end of the expected stop position The basket cart front-packing device according to any one of (1) to (3), wherein a photoelectric sensor is provided to sense the above.
( 5 ) A first photoelectric sensor that detects that the tip of the car cart reaches within 50 cm in the direction of travel from the tip of the planned stop position of the first car cart is the next car cart following the top car cart. A second photoelectric sensor is provided for sensing that the tip of the cart reaches within 50 cm in the direction of travel from the tip of the planned stop position of the car, and when the next car cart stops at the planned stop position, the right side surface thereof And there are two pairs of driving tires that contact the left side, respectively, and when the first photoelectric sensor does not sense and the second photoelectric sensor senses, the two driving tire pairs are switched on. Then, when sensing is sensed by the first photoelectric sensor, the pair of the two driving tires is switched off, (1) to (4), Gore truck before packing apparatus.
(6) has one transport path (1) to (5) a basket carriage before packing apparatus in which a plurality connecting car bogie before packing apparatus according to any one of basket one basket carriage forward moving device truck and characterized by connecting the car bogie before filling apparatus in a manner to adjoin the cage trolley left side contact driving portion of the right side contact driving part and the other car bogie before packing apparatus, to form a transport route of the plurality of the same traveling direction Car cart stuffing equipment.
(7) do not overlap each other in the driving tires of the car bogie left side contact driving portion of the cage trolley right side contact driving portion of one car bogie before packing apparatus to adjoin the other car bogie forward moving device is viewed from above The basket cart front-packing device according to ( 6 ), characterized in that it is arranged in a staggered manner in a traveling direction with a width smaller than a diameter of two drive tires and a width larger than one diameter.

  In the apparatus of the present invention, the drive unit of the drive unit that transports the cart is provided on the right and left sides of the transport path of the cart, and is not provided on the lower side of the transport path of the cart, so that a pit is not dug under the floor. The floor surface and the conveyance surface can be made continuous, and can be easily introduced not only in a new facility but also in an existing facility. In addition, the apparatus of the present invention is not a chain conveyor system that receives and transports the weight of the cart as it is as a transport means of the cart, but is a system in which the driving tire is brought into contact with the right side surface and the left side surface of the cage cart and forwardly fed. As a result, the power of the drive source is relatively small and the operation cost is low. Furthermore, since the apparatus of the present invention does not have a level difference on the conveyance surface as in the chain conveyor system, there is no difficulty in movement due to the level difference and no need for spacer installation.

FIG. 1 is a schematic view of an example of a cart used in the cart transport apparatus of the present invention. FIG. 2 is a schematic view of a part of the cart transportation device of the present invention as seen from the rear, in which the right side surface of the cart and the traveling surface of the drive tire are in contact with each other. FIG. 3 is a schematic plan view of an example of the cart transportation apparatus of the present invention. FIG. 4 is another schematic plan view of an example of the cart transportation apparatus of the present invention. FIG. 5 is another schematic plan view of an example of the cart transportation apparatus of the present invention. FIG. 6 is a schematic plan view of an example of the cart transportation device provided with a plurality of the cart transportation devices of the present invention. FIG. 7 shows an example of a control flow of the cart transportation apparatus of the present invention. FIG. 8 shows an example of a control flow of the cart transportation apparatus of the present invention. FIG. 9 shows an example of a control flow of the cart transportation apparatus of the present invention. FIG. 10 shows an example of a control flow of the cart transportation apparatus of the present invention.

  The cart transportation apparatus of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to these.

  As the cart used in the cart transport apparatus of the present invention, a substantially rectangular parallelepiped shape that can be stacked in order on a floor panel with wheels and moved by being pushed by a human hand is preferably used. be able to. For example, as shown in FIG. 1, a floor panel 2 with wheels, a front panel 3, a rear panel 4, and two opposing right side panels 5, a left side panel (not shown) ), Which is also called a roll box, an easy container, or a pipe cargo depending on the product. The basket cart used in the present invention is preferably of a type having a front, rear and side width of 60 cm to 2 m and a height of 1 to 3 m. In addition, the cart used in the present invention preferably has a portion that can be pressed and contacted by the drive tire (a portion that can transmit the driving force) over the length of the side surface in the lower portion of both side surfaces. FIG. 1 also schematically shows a portion in which the drive tire of the cart carriage right side contact driving unit of the cart carriage transport device of the present invention, which will be described later, is in contact with the lower side of the basket carriage right side.

  Next, a cart transportation device provided with a drive unit for transporting the above cart on the floor will be described with reference to FIG. FIG. 3 is a schematic plan view of an example of the cart transportation apparatus of the present invention. In the figure, reference numeral 1 denotes a cart, and an arrow indicates a traveling direction of the cart 1. Reference numeral 6 denotes a car cart right side contact drive unit, and 7 denotes a car cart left side contact drive unit, which constitute a drive unit for transporting the car cart. The car cart right side contact driving unit 6 and the car cart left side contact driving unit 7 are respectively installed on the right side and the left side of the transport path of the car cart 1 and are moved in the traveling direction on the right side and left side of the car cart, respectively. It has a drive tire 8 that transmits force.

  The drive tire 8 has a drive shaft in the vertical direction as shown in FIG. 2, and is rotated by a drive source 9 such as an electric motor. As shown in FIG. 2, a plurality of drive tires 8 may be used by being stacked on the same drive shaft. In FIG. 1 and FIG. 2, the traveling surface of the drive tire 8 of the car cart right side contact driving unit 6 is a portion that can be pressed and contacted by the spring force of the spring pressing means 10 below the right side surface 5 of the car cart 1 (drive force transmission). Only the mode of being pressed so as to come into contact with the possible portion) is shown, but the traveling surface of the driving tire 8 of the car cart left side contact driving unit 7 on the opposite side is also the same as that of the left side surface of the car cart 1 at the same time. It is pressed so as to come into contact with the lower pressing contactable part (drive force transmitting part) by the spring force of the spring pressing means. At this time, the cage cart is in a state where both sides of the right side surface and the left side surface are sandwiched and pressed by the drive tire 8, and in this state, the drive tire 8 of the cage cart right side surface contact drive unit 6 rotates to the right, At the same time, when the drive tire 8 of the left side contact portion 7 of the car cart rotates counterclockwise, the car cart pressed by the two drive tires can be fed forward in the traveling direction of the transport path. In this way, the method of the present invention does not receive and transport the weight of the cart as it is like the chain conveyor system, but transmits the driving force by pressing both sides of the cart at the same time. The cart can be moved forward with small power.

  As shown in FIG. 3, the drive tire 8 of the car cart right side contact driving unit 6 and the drive tire 8 of the car cart left side drive unit 7 are on a straight line perpendicular to the traveling direction of the car cart with their running surfaces facing each other. Exist in pairs. The number of drive tire pairs depends on the distance of the transport path, but is preferably at least 2, more preferably at least 3, and even at least 4. Further, when a plurality of pairs of drive tires are provided, it is preferable that the pairs of drive tires are provided at a distance between drive shafts that is equal to or less than the length in the traveling direction of the side surface of the cart in the traveling direction of the transport path. As a result, at least one pair of driving tires can be stably pressed between the side surfaces of the cart and the driving force can be transmitted, and the forward movement of the cart in the traveling direction can be performed smoothly.

  As shown in FIG. 3, the cart transportation apparatus of the present invention may be provided with a photoelectric sensor 11 that senses the car cart that enters the apparatus of the present invention (specifically, blocks linear light between 11). preferable. The photoelectric sensor 11 is preferably within 1 meter before the straight line connecting the drive shafts of the first drive tire pair of the first pair of drive tires (specifically, the straight line connecting 12 to each other) in the traveling direction of the cart, more preferably It is configured to sense that the tip of the car cart reaches a straight line 10 cm to 100 cm in front (specifically, a straight line connecting 11 to 11 cm). Thus, by detecting in advance the cart that has entered the vehicle, it is possible to appropriately control the start / stop of the rotation of the drive tire that follows.

  As shown in FIG. 5 and FIG. 3, the cart transportation apparatus of the present invention is configured such that when a plurality of carts are transported and each cart is sequentially stopped at a predetermined predetermined position at a predetermined longitudinal interval, It is preferable to provide a photoelectric sensor 12 that senses that the tip of the cart reaches within 50 cm, more preferably, 10 cm to 50 cm before the tip of the planned position. The photoelectric sensor 12 is arranged in parallel with the tip of the transporting cart, and specifically, configured to sense the cart that blocks the linear light between 12 as shown in FIG. When the above-described photoelectric sensor 12 detects the cart, position information of the cart is acquired. The position of the photoelectric sensor 12 is variable, and is determined by the stop interval of the cart. The photoelectric sensor 12 serves as a start / stop switch for the drive tire. By appropriately controlling the start and stop of rotation of the drive tire by the photoelectric sensor 12, a plurality of carts can be moved smoothly while avoiding a collision between the carts.

  As shown in FIG. 6, the cart transportation device of the present invention can connect a plurality of the above-described cart transportation devices having a single transportation path. In this case, the right side surface of the transportation cart of the one cart transportation device. It is preferable that the cart transportation device is connected in a manner in which the contact driving unit and the cart carriage left side contact driving unit of the other cart transportation device are adjacent to each other to form a plurality of transportation paths in the same traveling direction. For example, in the cart transport apparatus of FIG. 6, three transport paths in the same traveling direction are formed. As a result, it is possible to take out and load a large number of carts.

  As described above, when connecting a plurality of cart transport devices having one transport path, the cart cart right side contact driving unit and the cart cart left side contact driving unit are connected to the cart cart right side contact driving unit and the cart cart left side. The surface contact driving units may be connected adjacently in an independent manner, but in order to increase space efficiency, as shown in the two driving unit connection units in the center of FIG. The driving tires of the contact portion and the left side contact driving portion of the cart do not overlap with each other when viewed from above, and are staggered with a width smaller than a diameter of two driving tires and a width larger than one diameter in the traveling direction. It is preferable to arrange in a shape.

  Next, an example of the control method of the cart transportation apparatus of the present invention will be illustrated using FIGS. 5 and 7 to 10. The cart transport apparatus shown in FIG. 5 is used. In the figure, PH1 to PH5 indicate the above-described photoelectric sensors, and Motor1 to Motor4 indicate the pair of driving tires described above. In addition, START and END in the control flow in FIGS. 7 to 10 mean start and end, respectively, and PH1 to PH5 ON and OFF mean that PH1 to PH5 are sensed and no sense, and Motor1 to Motor4 are on. , OFF means that the motors 1 to 4 are switched on and off, respectively, and N and Y mean “NO” and “YES”, respectively.

  FIG. 7 shows a control flow from the time when the car cart enters the car cart transport device until PH1 is sensed until PH2 is sensed, and FIG. 8 shows a control flow from after PH2 is sensed to after PH3 is sensed. FIG. 9 shows a control flow from sensing PH3 to sensing PH4, and FIG. 10 shows a control flow from sensing PH4 to the end of the cart transportation apparatus. The control flows shown in FIGS. 7 to 10 are merely examples, and other control flows can be employed depending on the purpose.

  Although the cart transportation device of the present invention can be used for any cart transportation device, as shown in FIGS. 3 to 5, the carriage cart continues to enter and the transportation of the leading cart cart is stopped. It is suitable as a pre-packing device for a car cart that is sequentially pre-packed and arranged.

  Although an example of the device of the present invention has been described above with reference to the drawings, as long as the driving force can be transmitted to the lower side of each side surface of the cart and the driving force can be transmitted while the driving tire is contacted and pressed, the cart can be forwarded. Any replacement, addition and / or deletion of some components of the apparatus of the present invention by the prior art falls within the scope of the present invention. For example, the means for transmitting the driving force by pressing the driving tire with a spring force and the photoelectric sensor can be changed to those having a conventionally known similar function.

  The cart transportation apparatus of the present invention can easily achieve the continuation of the floor surface and the conveying surface without digging a pit under the floor as in the chain conveyor type, and has a simple structure with low cost. This is extremely useful in the sorting industry.

DESCRIPTION OF SYMBOLS 1 Car trolley 2 Wheeled floor panel 3 Front panel 4 Rear panel 5 Right side panel 6 Cage trolley right side contact driving part 7 Cage trolley left side contact driving part 8 Driving tire 9 Driving source 10 Spring pressing means 11 Photoelectric sensor 12 Photoelectric sensor

Claims (7)

A plurality of substantially rectangular parallelepiped-shaped carts consisting of a wheeled panel, a front panel, a rear panel, an opposing right side panel, and a left side panel that surround and stand upright are conveyed, and the leading cart is transported. Is a basket cart pre-packing device in which the carts that follow after the vehicle is stopped are sequentially packed, and a drive unit that transports the carts is provided on the floor surface, and the drive unit is configured to transport the carts A right side contact driving part and a left side contact driving part of the cart, and the right side contact driving part of the cart and the left side contact driving part of the cart are respectively in the vertical direction. A driving tire having a driving shaft on the right side surface of the basket carriage and a driving tire of the left side surface contact driving section of the basket carriage with the driving surface facing each other. The drive tire of the right side contact driving portion of the car trolley that exists in a pair on a straight line perpendicular to the traveling direction is pressed against the lower side of the right side of the car trolley by a spring force. The drive tire of the other side of the car cart left side contact driving unit that makes a pair at the same time rotates in contact with the left side of the car and is rotated counterclockwise while being pressed against the lower side of the car cart left side by the spring force. A basket cart pre-packing device characterized in that the cart cart pressed by the pair of drive tires is conveyed in the traveling direction of the conveyance path. At least two pairs of drive tires for the right side contact driving unit of the cart and the left side contact driving unit of the cart are provided, and these pairs travel along the side of the cart in the traveling direction of the transport path. The basket cart front-packing device according to claim 1, wherein the cart is provided with a distance between drive shafts equal to or less than a length in a direction. A photoelectric sensor is provided that senses that the tip of the cart reaches a straight line that is within one meter before the straight line connecting the first pair of drive tires on the transport path of the cart. The basket cart front-packing device according to claim 1 or 2. If each car truck that is sent transportable is stopped sequentially in a predetermined scheduled position at predetermined longitudinal intervals, senses that reach the tip of the basket base vehicle in front within 50cm in the traveling direction from the end of the expected stop position The basket cart front-packing device according to any one of claims 1 to 3, wherein a photoelectric sensor is provided. A first photoelectric sensor is provided to detect that the tip of the car cart reaches within 50 cm in the direction of travel from the tip of the planned stop position of the first car cart, and the next car cart is scheduled to stop following the top car cart A second photoelectric sensor is provided for detecting that the tip of the cart reaches within 50 cm in front of the tip of the position, and when the next cart stops at the planned stop position, the right side and the left side There are two pairs of drive tires that contact each other, and when the first photoelectric sensor does not sense and the second photoelectric sensor senses, the two drive tire pairs are switched on, and then The front of the cart according to any one of claims 1 to 4, wherein when one photoelectric sensor senses sensing, the pair of the two drive tires is switched off. Because devices. A basket carriage before packing apparatus in which a plurality connecting car bogie before packing apparatus according to any one of claims 1 to 5 having a single conveyance path, basket one basket carriage forward moving device trolley right side contact driving unit and a cage trolley left side contact driving portion of the other car bogie forward moving device connecting the car bogie before filling apparatus in a manner to be adjacent car truck before filling, characterized in that the formation of the transport path of the plurality of the same traveling direction apparatus. Without overlapping each other in the driving tires of the car bogie left side contact driving portion of the cage trolley right side contact driving portion of one car bogie before packing apparatus to adjacent the other car bogie forward moving device is viewed from above, the traveling direction 7. The basket bogie pre-packing device according to claim 6 , wherein the cart is arranged in a staggered manner with a width smaller than a diameter of two driving tires and a width larger than one diameter.

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