JP6493120B2 - Pallet transport device - Google Patents

Description

  The present invention relates to a pallet transport device that transports a pallet while standing.

  In transporting this type of pallet, there is a demand for transporting a substantially rectangular pallet on a transport path in an upright state rather than a laid state in order to reduce the transport space. For example, in the apparatus disclosed in Patent Document 1, a plurality of pallets are arranged on a pallet base while standing upright. The pallet cradle is formed of a first leg portion and a second leg portion that are connected in a substantially L shape in a side view, and is attached to a fixed frame that forms the outer shape of the apparatus. The first leg portion is configured by a flat plate-like member extending toward the carriage, and gradually inclines downward as it goes from the front end facing the carriage to the rear end. Further, the second leg portion is configured by a flat plate-like member standing from the rear end of the first leg portion. And in a well-known technique, a pallet is arrange | positioned as an inclination attitude | position with respect to a floor surface, leaning on the front end of a 1st leg part. Then, the worker rotates the lower part of the pallet so that it jumps up on the pallet cradle with the upper side as a base point, thereby raising the pallet and placing it on the pallet cradle. Therefore, by providing a known device near the conveyance path, the pallet can be moved toward the conveyance path while standing.

JP 2003-176026 A

  By the way, in the apparatus of a well-known technique, when raising a pallet, it is necessary for an operator to rotate so that a pallet may jump up on a pallet stand. For this reason, the configuration of the publicly known technique forces a heavy work that is heavy on the operator, and is particularly unsuitable when the pallet is heavy or when the same operation is repeated. The present invention was devised in view of the above points, and the problem to be solved by the present invention is to transport the pallet upright while reducing the burden on the worker as much as possible by using a mechanical mechanism. There is to do.

  As means for solving the above-mentioned problems, the pallet transport device according to the first aspect of the present invention is a transport device capable of transporting an upright square pallet toward a predetermined location. The pallet transport device includes a transport path that leads to a predetermined place, and a carry-in device that transports the pallet loaded in a laid state on a cart to the transport path while standing. And the carry-in device is arranged in the carry-in portion where the cart carried into the side of the conveyance path can be placed, the entrance provided on one side of the carry-in portion and allowing the cart to enter the carry-in portion, and the carry-in device And an upright portion for raising the pallet. Then, the pallet is transferred to the transfer path while being lifted up by the function of the standing part (mechanical mechanism). In this type of configuration, it is desirable that the burden on the operator can be reduced as much as possible.

  Therefore, in the present invention, the upright portion includes a rod-like or flat-plate-like tilt arm provided to be able to stand or tilt, a holding claw provided on the tilt arm that can be advanced and retracted in and out of the carry-in portion, and the tilt arm. It has a raising / lowering mechanism for standing or tilting, and an advancing / retreating mechanism for moving the holding claw forward / backward with respect to the carry-in part. And the tilting arm stands upright at the base point provided on the other side of the carry-in part opposite to the entrance, and the side of the pallet in the carry-in part while tilting from the base part toward one side of the carry-in part It is set as the structure which can be displaced between the inclination attitude | positions arrange | positioned in this. In addition, the raising / lowering mechanism is routed via a traction unit provided on the other side of the carry-in unit, a slider that can be moved between one side and the other side of the carry-in unit, and the traction unit and the tilt arm. And a second wire routed through the slider and the tilting arm. The tilting arm is in a standing posture when the first wire is pulled by the pulling unit, and by pulling the second wire while moving the slider to the other side of the loading unit, the pulling force of the first wire is increased. It can be displaced in a tilted posture. The advancing / retreating mechanism includes a first inclined plate that gradually inclines downward toward the outside of the carry-in portion, and a second inclined plate that inclines downward gradually toward the inside of the carry-in portion. An advance / retreat mechanism is provided in the middle of the movement path of the holding claw when the tilting arm is tilted. By tilting the tilting arm, the holding claw is moved to the outside of the carry-in portion along the first inclined plate. Then, it is set as the structure which moves inward of a carrying-in part along a 2nd inclined board.

  In the present invention, the tilt arm is tilted via the second wire by moving the slider while being pressed by the cart when the cart is loaded into the loading section. At this time, the holding claw is moved to the outside of the carry-in part while avoiding the pallet in the carry-in part by the first inclined plate, and then engaged with the pallet while being moved inward of the carry-in part by the second inclined plate, The pallet is held by the tilting arm in the tilting posture. And when carrying out the cart from the carry-in part, the pallet is moved to the other side of the carry-in part while being in a standing posture together with the tilting arm by the pulling of the first wire by the pulling part, and arranged in the conveyance path. . In the present invention, the pallet can be transferred to the conveyance path while being raised by further moving the holding claw mechanically while utilizing the carry-in input of the carriage and the force for raising the tilting arm.

  The pallet carrying device of the second invention is the pallet carrying device of the first invention, wherein the carry-in part extends from one side to the other side on the facing side of the tilting arm across the carriage at the time of carry-in. And a regulating mechanism that regulates the positional deviation of the pallet in the carry-in unit. The regulating mechanism has a protruding arm portion that protrudes into the loading portion on the entrance side of the pallet loaded into the loading portion, and the protruding arm portion is located above or outside the loading portion due to the pressing of the pallet during loading. The movement to the one side of the carrying-in part is regulated and arranged. Therefore, in the present invention, when the carriage is carried into the carry-in part, the projecting arm part moves upward or outward by pressing from the pallet so as to retreat from the movement path of the pallet, and the pallet is disposed in the carry-in part. In this state, it is configured to protrude into the carry-in portion on the entrance side of the pallet. In the present invention, the positional displacement of the pallet in the carry-in portion can be suitably prevented by mechanically moving the restricting mechanism while using the carry input of the carriage and arranging it at an appropriate position.

  The pallet transport device according to a third aspect of the present invention is the pallet transport device according to the first or second aspect, wherein the traction portion has a first weight portion attached to the carry-in portion so as to be movable up and down, and the first wire. However, it is routed via the first weight and tilting arm. By pulling the first wire by lowering the first weight portion, the tilting arm is in a standing posture, and the first weight is raised by pulling the first wire in the opposite direction by tilting the tilting arm. It is supposed to be configured. The carry-in portion is fixed to the base point portion and extends in a direction orthogonal to the carry-in direction of the carriage, a projecting portion that projects in a direction perpendicular to the direction in which the rotary shaft portion extends, and the rotary shaft portion And a second weight portion provided in the. As the rotary shaft rotates about the axis due to the tilting arm, the second weight part gradually rises, and the projecting part is carried in a position where it can be placed below the pallet while gradually moving from above to below. It is set as the structure which protrudes in a part.

  Therefore, in the present invention, when the carriage is carried into the carry-in section, the rotating shaft portion rotates while the tilting arm is tilted, and the projecting portion is moved downward, and then the cart is carried above the projecting portion. . At the time of unloading the carriage from the carry-in part, the tilting arm is in a standing posture by pulling the second wire by lowering the first weight part, and the rotating shaft part reversely rotates while lowering the second weight part. Thus, the projecting portion is configured to move upward while supporting the pallet. In the present invention, the tilting arm can be erected together with the pallet using the force of lowering (falling) the first weight part. At this time, the protruding portion of the rotating shaft portion can support the pallet while utilizing the weight of the second weight portion. Thus, in this invention, since there exists assistance of the protrusion part using a 2nd weight part, a tilting arm can be made to stand with a pallet using the 1st weight part of moderate weight.

  A pallet transport device according to a fourth aspect of the present invention is the pallet transport device according to any one of the first to third aspects of the present invention, and includes a carry-out device that transfers the pallet in an upright state on the transport path to another cart. . This unloading device includes an unloading unit on which another cart carried into the side of the conveyance path can be arranged, an exit provided on one side of the unloading unit and allowing the other cart to exit from the unloading unit, And a support mechanism for supporting the pallet to be displaced from the standing state to the lying state.

  The support mechanism has a rear support portion provided on the other side of the carry-out portion opposite to the exit port across the pallet on the conveyance path. The rear support portion is movable in a direction approaching or separating from the pallet, and gradually tilts away from the pallet as it goes downward, and a second arm that hangs downward from the first arm And a pressing roller portion projecting from the second arm toward the pallet, and a holding piece portion bending from the lower end of the second arm portion toward the pallet. The second arm is movable in a direction approaching or separating from the pallet while rotating with the lower end of the first arm as a base point.

  Therefore, in the present invention, when another carriage is carried into the carry-out portion, the other carriage is brought into contact with the lower portion of the pallet in the standing state and tilted. At this time, the pallet tilts while pushing up the rear support part to the other side of the carry-out part while being supported by the holding piece part on the bottom surface side of the pallet. Further, when the pallet is placed on another carriage, the pressing roller portion is pressed onto the pallet so that the second arm is held in a lifted state. And at the time of carrying out another cart from the carry-out part, the pressing roller part slides down from the pallet, so that the second arm contacts and presses the pallet while rotating around the lower end of the first arm. did. In the present invention, the pallet in the standing state can be tilted toward the other cart while being supported by the rear support portion of the support mechanism while using the carrying input of the cart. Further, the pallet can be pushed out to an appropriate place on another carriage by using the pressing force of the second arm provided on the rear support portion.

  The pallet conveying device of the fifth invention is the pallet conveying device of the fourth invention, wherein the support mechanism is provided on one side of the unloading portion with respect to the pallet on the conveying path and has a front support portion that hangs downward. The front support portion is movable in a direction approaching or separating from the pallet with the upper end portion as a base point. Therefore, in the present invention, when another cart is carried into the carry-out part, the upper side of the pallet is inclined while being pressed against the front support part. In the present invention, the pallet in the standing state can be tilted toward the other cart while being carefully tilted by the front support portion and the rear support portion.

  According to the first aspect of the present invention, the mechanical pallet can be used to convey the pallet in an upright state while reducing the burden on the worker as much as possible. According to the second aspect of the invention, the pallet can be more reliably raised and conveyed in an appropriate posture. According to the third invention, the burden on the worker can be further reduced. Further, according to the fourth invention, it is possible to carry out the conveyed pallet while reducing the burden on the worker as much as possible using a mechanical mechanism. Further, according to the fifth aspect, the conveyed pallet can be carefully carried out.

It is a schematic side view of the conveying apparatus before carrying a trolley. It is a schematic side view of the conveying apparatus in the middle of carrying a trolley | bogie. It is a schematic side view of the conveying apparatus after carrying out a trolley | bogie. It is a front perspective view of the conveying apparatus which shows a carrying-in apparatus. It is a back perspective view of the conveying apparatus which shows a carrying-in apparatus. It is a perspective view of a part of carrying-in apparatus which shows the 2nd weight part at the time of descent | fall. It is a perspective view of a part of carrying-in apparatus which shows the 2nd weight part at the time of a raise. It is a perspective view of a part of carrying-in apparatus which shows the slider of a raising / lowering mechanism. It is a perspective view of a part of carrying-in apparatus which shows an advancing / retreating mechanism. It is the schematic of a part of carrying-in apparatus which shows a movement of a holding nail. It is a perspective view of a part of carrying-in apparatus which shows the 1st weight part at the time of descent | fall. It is a perspective view of a part of carrying-in apparatus which shows the 1st weight part at the time of a raise. It is the schematic of the carrying-in apparatus part and carriage part part which show a control mechanism. It is a schematic top view of the carrying-in apparatus part and cart part which show a control mechanism. It is a front perspective view of the conveying apparatus which shows the carrying-out apparatus concerning Example 2. FIG. It is a perspective view of a part of carrying-out apparatus which shows the back support part concerning Example 2. FIG. It is a perspective view of a part of carrying-out apparatus which shows the front support part concerning Example 2. FIG. It is a schematic side view which shows the conveying apparatus before the carrying-out operation | work concerning Example 2. FIG. It is a schematic side view which shows the conveying apparatus of the unloading work first stage concerning Example 2. FIG. It is a schematic side view which shows the conveying apparatus in the middle of the carrying-out operation | work concerning Example 2. FIG. It is a schematic side view which shows the conveying apparatus of the unloading work final stage concerning Example 2. FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In each of the drawings, reference symbol F in front of the transport device, reference symbol B in the rear of the transport device, reference symbol UP in the upper transport device, reference symbol DW in the lower transport device, reference symbol R in the right transport device, and reference symbol L in the left transport device. Is attached. Here, FIGS. 1 to 14 exclusively show the carrying-in apparatus of the embodiment, and FIGS. 15 to 21 exclusively show the carrying-out apparatus of the second embodiment.

<Example 1>
1 is a device capable of transporting a substantially rectangular pallet P1, and includes a transport path 2 and a carry-in device 10. In this embodiment, in order to reduce the conveyance space as much as possible, the pallet P1 is erected and conveyed to a storage place as a predetermined place while being arranged on the conveyance path 2. At this time, by the action (mechanical mechanism) of the standing portion 16 provided in the carry-in device 10, the pallet P1 on the carriage T1 is transferred to the conveyance path 2 while being erected, but in this type of configuration, It is desirable that the burden on the worker can be reduced as much as possible. Therefore, in this embodiment, the mechanical pallet mechanism described later is used to convey the pallet P1 in an upright state while reducing the burden on the worker as much as possible. Hereinafter, each configuration will be described in detail.

[Pallet / Carriage]
Here, the pallet P1 is a member having a square shape in a top view having an appropriate thickness with reference to FIGS. 1 and 4 as a standard. The outer peripheral surface of the pallet P1 has a bottom surface 2p that is in contact with the conveyance path 2, a top surface 4p that is an opposite side of the bottom surface 2p, and a pair of side surfaces that extend vertically (left side surface 6p, right side surface 8p). ). And the holding hole 10p which can insert the holding nail | claw 20 of the standing part 16 mentioned later is provided in the outer peripheral surface (for example, left side 6p) of the pallet P1. The cart T1 is a substantially rectangular parallelepiped member having wheels on the bottom surface side with reference to FIG. 1, and a pallet P1 in a laid state can be arranged on the top surface side. And the dimension of the upper surface of the cart T1 in the front-rear direction is slightly shorter than the pallet P1, and therefore the bottom surface 2p side of the pallet P1 protrudes from the cart T1 when the pallet P1 is stacked on the cart T1. It becomes.

[Conveyance path]
With reference to FIG. 4, the conveyance path 2 is a roller conveyor-like path extending in the left-right direction, and can convey the pallet P1 in an upright state to a predetermined place provided on the right side. A shaft portion (not shown) extending in the left-right direction and a cylindrical transfer roller 4 that can rotate around the shaft center of the shaft portion are provided on the left front surface of the transport path 2. These are disposed above a rotation shaft portion 10i described later. The conveyance path 2 is gradually inclined downward from the left side toward the right side, and the pallet P1 in an upright state can be smoothly moved on the roller conveyor-shaped conveyance path 2. Note that the shape of the conveyance path 2 as viewed from above is a shape that can convey the pallet P1 and is typically linear, but can be curved (meandered) at an appropriate place.

[Import equipment]
The carrying-in apparatus 10 is an apparatus which transfers the pallet P1 piled up in the state laid down on the trolley | bogie T1 to the conveyance path 2 with reference to FIGS. 1-4. Referring to FIG. 4, the carry-in device 10 includes a carry-in portion 12 and an entrance 14, and includes a later-described standing portion 16 (tilt mechanism XM, advance / retreat mechanism YM) and a restriction mechanism ZM as mechanical mechanisms. . The carry-in part 12 is a part in which the cart T1 carried in the left end and the front of the conveyance path 2 can be arranged, and a pair of carry-in frame parts (first carry-in frame part 2i, second carry-in frame part 4i) and a pair of A carry-in column portion (first carry-in column portion 6i, second carry-in column portion 8i) and a rotation shaft portion 10i are provided (details of each portion will be described later). Here, the entrance 14 is a portion that allows the carriage T1 to enter the carry-in portion 12, and is formed between the front ends of the carry-in frame portions 2i and 4i described later. With reference to FIG. 4, the entrance 14 is made wider than the inside of the carry-in portion 12 because the front end portion of the second carry-in frame portion 4 i arranged on the right side is gradually bent toward the right side. .

  The first carry-in frame portion 2i on the left side and the second carry-in frame portion 4i on the right side are each formed of a prismatic member that is long in the front-rear direction, with reference to FIG. The carriage T1 can be carried in between 2i and 4i. The inner surfaces of the respective carry-in frame portions 2i and 4i facing the cart T1 are formed in a roller conveyor shape, and the cart T1 can be smoothly guided into the carry-in portion 12. Further, at the rear ends of the respective carry-in frame portions 2i and 4i, bearing portions 12i into which a rotation shaft portion 10i described later can be inserted are provided. The carry-in frame portions 2i and 4i are respectively supported by a prismatic pedestal portion 14i, and each pedestal portion 14i is longer in the rear than the corresponding carry-in frame portion. And each base part 14i protrudes back from the rear end of each carrying-in frame part 2i, 4i, and the conveyance path 2 can be supported by the rear part of each base part 14i. Then, on the rear portion of the left pedestal portion 14i, referring to FIG. 5, a shaft portion (not shown) that protrudes leftward, and a cylindrical support roller 16i that can rotate around the shaft center of this shaft portion. The second weight portion 44i of the rotating shaft portion 10i described later is supported by the support roller 16i.

  Further, in this embodiment, referring to FIG. 4, each carry-in frame portion 2 i, 4 i can be provided with a configuration related to each mechanism described later. For example, a guide rail 20i and a retaining portion 22i are provided in the first carry-in frame portion 2i arranged on the left side. The guide rail 20i is a recessed portion for slidably mounting a slider 2x described later, and extends in the front-rear direction on the upper surface of the first carry-in frame portion 2i. The retaining portion 22i is a cubic portion projecting from the front upper surface of the first carry-in frame portion 2i, and a receiving bolt 24i capable of receiving the slider 2x projects from the rear end. The second carry-in frame portion 4i disposed on the right side is a portion corresponding to the carry-in frame portion of the second invention, and is provided with a mounting plate portion 26i on which a later-described regulating mechanism ZM can be disposed. The mounting plate portion 26i is formed of a substantially rectangular flat plate that stands up from the front upper surface of the second carry-in frame portion 4i, and can be arranged in front of the pallet P1 arranged in the carry-in portion 12.

  Further, the left first carry-in column portion 6i and the right second carry-in column portion 8i are each a prismatic portion that stands up behind the conveyance path 2 with reference to FIG. 4 and FIG. It is connected to the rear end of the corresponding pedestal portion 14i. An auxiliary roller conveyor 6 is attached to the upper part of the pair of carry-in column portions 6i and 8i in a bridging manner, and the auxiliary roller conveyor 6 can support the upper part of the pallet P1 during conveyance. Further, referring to FIG. 5, a reinforcing frame portion 50i made of square bar is fixed to the lower ends of the pair of carry-in column portions 6i and 8i so as to be reinforced. A support column 7i that protrudes rearward is provided on the upper side of the first carry-in column portion 6i. Further, a support bolt 36i protrudes from the front surface of the first carry-in column portion 6i, and the tilting arm 18 of the standing portion 16 described later is supported by the support bolt 36i.

[Rotating shaft]
Referring to FIGS. 4 and 5, the rotation shaft portion 10 i is configured by a columnar member that is long in the left-right direction, and includes a pair of protrusions 40 i and 42 i and a second weight portion 44 i. The rotary shaft portion 10i is inserted into the bearing portion 12i at the rear end of each carry-in frame portion 2i, 4i and can rotate around the axis, and the left end of the rotary shaft portion 10i is the first carry-in frame portion 2i. It is arranged to protrude outward. And a pair of protrusion part 40i, 42i is a short columnar site | part protruded in the direction orthogonal to the direction where the rotating shaft part 10i is extended, and is arrange | positioned at appropriate intervals in the left-right direction. The pair of projecting portions 40i and 42i are movable in the vertical direction with the rotation of the rotating shaft portion 10i, and are disposed so as to project upward when the tilting arm 18 described later is in a standing posture. Yes. Here, in the present embodiment, the position of the rotating shaft portion 10i where the protruding portions 40i and 42i are disposed above is set as the basic position of the rotating shaft portion 10i. Then, at the time of carrying in the pallet P1, which will be described later, while the rotary shaft portion 10i is rotated, each of the projecting portions 40i, 42i is moved downward and forward, so that the carry-in portion can be arranged below the pallet P1. 12 is projected.

  6 and 7, the second weight portion 44i is configured by a substantially rectangular parallelepiped member (weight), and the rotary shaft portion 10i is interposed via the first connection piece 46i and the second connection piece 48i. Installed on. The first connecting piece 46i is formed of a thin flat plate material fixed to the left end of the rotating shaft portion 10i, and an axis A1 extending left and right is provided at the end portion. The first connecting piece 46i protrudes rearward at the rotation shaft portion 10i at the basic position, and gradually rises forward with the rotation of the rotation shaft portion 10i and then stands upward. Moreover, the 2nd connection piece 48i is comprised with the thick flat plate material, The front end is rotatably attached to the surroundings of the axis | shaft A1 of the 1st connection piece 46i. The second connecting piece 48i is disposed so as to protrude rearward and downward from the first connecting piece 46i at the rotation shaft portion 10i at the basic position, and is gradually lifted upward in accordance with the rotation of the rotation shaft portion 10i to be substantially horizontal. Become.

  And the 2nd weight part 44i is attached to the front part lower end so that rotation is possible around the axis | shaft A2 extended in the left-right provided in the middle of the 2nd connection piece 48i. In the present embodiment, with reference to FIG. 6, in the rotation shaft portion 10 i at the basic position, the second weight portion 44 i is disposed so as to protrude rearward from the rotation shaft portion 10 i via the connecting pieces 46 i and 48 i. . At this time, the second weight portion 44i is supported by the support roller 16i provided on the left pedestal portion 14i while slightly rising from the second connecting piece 48i. Referring to FIG. 7, as the rotary shaft portion 10i rotates, the first connecting piece 46i gradually moves upward and rises, and the second connecting piece 48i is gradually lifted and displaced to a substantially horizontal state. To do. At this time, the second weight portion 44i is lifted while being supported by the second connecting piece 48i.

[Standing part]
Referring to FIG. 4, the upright part 16 is a part for raising the pallet P <b> 1 disposed in the carry-in part 12, and the tilting arm 18 and the holding claw 20, and the vertical mechanism XM and forward / backward movement as a mechanical mechanism A mechanism YM is provided. The tilting arm 18 is formed of a long prismatic (bar-shaped) member, and includes a fixed bracket 18a and a pressing arm 18b with reference to FIG. In this embodiment, with reference to FIGS. 4 and 5, the lower end of the tilting arm 18 is fixed to the left end of the rotation shaft portion 10i as the base point BP, and can be displaced between the standing posture and the tilting posture. Deploy. The left end of the rotation shaft portion 10i as the base point portion BP is a left end portion protruding from the first carry-in frame portion 2i and a portion inside the first connection piece 46i. The tilting arm 18 in the standing posture stands upright from the base portion BP while tilting slightly rearward, and is supported by the support bolt 36i of the first carry-in column portion 6i. Further, the tilting arm 18 in the tilting posture is tilted forward from the left end of the rotating shaft portion 10i and is disposed on the left side of the pallet P1 disposed in the carry-in portion 12 as will be described later.

  The fixed bracket 18a is a flat plate-shaped member fixed perpendicular to the extending direction of the tilting arm 18 with reference to FIG. The fixing bracket 18a is provided with an engaging claw 18c that can be engaged with a holding claw 20 described later. The pushing arm 18b is a short cylindrical portion protruding rightward from the lower rear surface of the tilting arm 18 with the tilting arm 18 in the standing posture as a reference. As shown in FIG. 2, the pressing arm 18b is disposed at a position where the pressing arm 18b can come into contact with the pallet P1 when the tilting arm 18 is tilted. In the present embodiment, when the tilting arm 18 and the rotating shaft portion 10i are fixed, when the tilting arm 18 in the standing posture is tilted, the rotating shaft portion 10i rotates following the tilting operation. Further, when the tilting arm 18 in the tilted posture is raised, the rotary shaft portion 10i rotates in reverse following the rising operation.

  Further, referring to FIG. 3, the holding claw 20 is a part capable of holding the pallet P1, and is slidably attached to the fixed bracket 18a of the tilting arm 18 as shown in FIGS. The holding claw 20 is formed of a substantially rectangular flat plate member, and includes a roller portion 20a and a rail portion 20b. Referring to FIG. 10, rail portion 20b is a convex portion extending left and right on the back side of holding claw 20, and engaging claw 18c of fixed bracket 18a is slidably engaged. Further, a flat plate portion 20 c that protrudes while extending in the left-right direction is provided on the surface of the holding claw 20. A shaft (reference numeral omitted) extending in the front-rear direction is provided at the left end of the flat plate portion 20c, and a roller portion that can rotate by coming into contact with each inclined plate 20y, 30y of the advance / retreat mechanism YM described later on this shaft. 20a is provided. In the present embodiment, the holding claw 20 is attached to the tilting arm 18 orthogonally via the fixed bracket 18a. At this time, the holding claw 20 is slidably attached to the fixed bracket 18a via the rail portion 20b with the roller portion 20a side facing left. Then, the right end of the holding claw 20 can be inserted into the holding hole 10p of the pallet P1 and engaged with it while moving the right end of the holding claw 20 inward of the carry-in portion 12 by an advancing / retreating mechanism YM described later.

[Tilting mechanism]
The raising / lowering mechanism XM is a mechanism that raises or tilts the tilting arm 18 with reference to FIGS. 1 to 4, and includes a slider 2x, a pulling portion (6x), a first wire 11x, and a second wire 12x. Have. 4 and 8, the slider 2x is formed of a substantially rectangular flat plate member as viewed from above, and is slidably attached to the guide rail 20i of the first carry-in frame portion 2i. The slider 2x is provided with a contact bar 4x that protrudes to the right. The contact bar 4x protrudes into the loading portion 12 and is disposed at a position where it can contact the carriage T1. . In the present embodiment, the slider 2x is disposed in a state in which the slider 2x is in contact with the receiving bolt 24i at the front portion of the first carry-in frame portion 2i before the carriage T1 is carried in. When the carriage T1 described later is carried in, the slider 2x is pushed by the carriage T1 together with the contact rod 4x to move backward.

  Moreover, with reference to FIG.4, FIG.11 and FIG.12, a traction part is a site | part which pulls the 1st wire 11x mentioned later, and is comprised with the 1st weight part 6x (the upper weight part 10x, the lower weight part 20x). Has been. The first weight portion 6x is attached to a guide column 9i provided at the rear portion of the carry-in portion 12 so as to be movable up and down. Here, the guide column 9i is composed of a prismatic member that stands up and down, and its upper side is fixed to the right surface of the support column 7i of the first carry-in column 6i, and its lower side is connected to the reinforcing frame 50i. It is fixed. A flat stopper piece si projects and is fixed to the front surface of the guide post 9i in the middle of the vertical direction.

  The first weight portion 6x is a weight that pulls the first wire 11x with reference to FIGS. 11 and 12, and includes an upper weight portion 10x and a lower weight portion 20x that are individual weights. The upper weight portion 10x is a flat plate-like weight that is long on the left and right, and a flat plate-like upper support plate 13x is attached to the rear thereof. A plurality of rollers 14x are provided on the front surface of the upper support plate 13x so as to sandwich the right and left surfaces of the guide column 9i, and each roller 14x is provided between the upper weight portion 10x and the upper support plate 13x. Is arranged. The lower weight portion 20x is a flat plate-like weight that is long in the vertical direction, and is attached to the flat plate-like lower support plate 22x. Also on the front surface of the lower support plate 22x, a plurality of rollers 24x are provided so as to sandwich the right and left surfaces of the guide column 9i. A support surface portion 23x bent backward is provided on the left side of the lower support plate 22x, and the movable pulley 26x and the lower weight portion 20x are fixed to the support surface portion 23x. The movable pulley 26x is rotatably attached to a shaft (reference numeral omitted) that protrudes to the left end at the upper end of the support surface portion 23x, and can be moved up and down together with the lower weight portion 20x via a first wire 11x described later.

  In this embodiment, referring to FIG. 11, the upper weight portion 10x is attached to the guide column 9i via the upper support plate 13x while being arranged on the front surface of the guide column 9i and above the stopper piece si. The lower weight portion 20x is attached to the guide column 9i via the lower support plate 22x while being disposed below the stopper piece si. In this state, the upper weight portion 10x can move upward, but the downward movement is restricted by the stopper piece si. Unlike this, the lower weight portion 20x is freely movable in the vertical direction without coming into contact with the stopper piece si.

[First wire]
Referring to FIG. 5, the first wire 11x is a single wire member, and is routed behind the tilting arm 18 via a plurality of pulleys (XB, 26x). The first wire 11x is routed via the pulling portion (6x) and the tilting arm 18, so that the tilting arm 18 can be brought into a standing posture by pulling the first wire 11x. That is, in the present embodiment, one end of the first wire 11x is fixed in the middle of the rear surface of the tilting arm 18 in the standing posture, and the other end of the first wire 11x is fixed to the rear portion of the support column 7i. Then, the first wire 11x is wound around the rear fixed pulley XB provided on the front side surface of the support column 7i while being routed rearward and upward from the tilting arm 18, and then the rear portion of the support column 7i and the rear fixed pulley XB. The cable is wound around the movable pulley 26x of the lower weight portion 20x while being routed downward. Thus, the first wire 11x is pulled backward by the lowering (falling) of the first weight portion 6x, and the tilting arm 18 can be held in the standing posture by pulling the first wire 11x backward. Further, the tilting arm 18 tilts and the first wire 11x is pulled forward, whereby the first weight portion 6x is pulled upward. At this time, after the lower weight portion 20x is raised by the first wire 11x and comes into contact with the upper weight portion 10x, both the weight portions 10x and 20x move to the upper end of the guide column 9i.

[Second wire]
The second wire 12x is also a single wire member with reference to FIG. 4, and is routed in front of the tilting arm 18 via a plurality of pulleys (X1, X2). By routing the second wire 12x via the tilt arm 18 and the slider 2x, the tilt arm 18 can be displaced from the standing posture to the tilted posture by pulling the second wire 12x. That is, in this embodiment, referring to FIG. 8, after fixing one end of the second wire 12x to the front end of the slider 2x, the second wire 12x is connected to the first fixed pulley at the front end of the first carry-in frame portion 2i. Fold back while wrapping around X1. Referring to FIG. 5, the second wire 12x is routed upward after passing through the second fixed pulley X2 placed vertically on the left surface of the first carry-in frame portion 2i. The other end is fixed in the middle of the front surface of the tilting arm 18. By doing so, the slider 2x moves rearward and the second wire 12x is pulled, so that the tilting arm 18 can be tilted forward against the pulling of the first wire 11x. In the state where the slider 2x is not pressed, the slider 2x moves forward via the second wire 12x and returns to the original state as the tilting arm 18 stands by pulling the first wire 11x.

[Advance / Retreat Mechanism]
The advancing / retreating mechanism YM is a mechanism for advancing and retracting the holding claw 20 with respect to the carry-in unit 12 with reference to FIGS. 4, 9 and 10, and includes a plurality of base parts (first base part 4 y to third base part). The base portion 8y), the first inclined plate 20y, and the second inclined plate 30y are included. Here, referring to FIG. 9, the first base portion 4 y is a substantially horizontal U-shaped frame body as viewed from above, and is arranged to project leftward from the outer surface (left surface) of the first carry-in frame portion 2 i. The The second base portion 6y is a prismatic portion that stands up from the first base portion 4y, and the third base portion 8y is a prismatic portion that projects forward from the second base portion 6y. . Here, the first base portion 4y is provided with front and rear groove portions 5y extending linearly in the front-rear direction, and the second base portion 6y is bolted to an appropriate position of the front-rear groove portion 5y in the front-rear direction. Can do. An upper and lower groove portion 7y extending in the vertical direction is also provided on the front surface of the second base portion 6y, and the third base portion 8y can be bolted to an appropriate position of the vertical groove portion 7y in the vertical direction. A substantially L-shaped support plate portion 10y is provided on the upper right side of the second base portion 6y. A pin-like support pin 12y that rises upward is provided on the lower surface of the support plate portion 10y, and a support shaft 14y that extends in the front-rear direction is provided at the upper end of the support plate portion 10y.

[First and second inclined plates]
9 and 10, the first inclined plate 20 y is configured by a flat plate member that is gradually inclined downward toward the outside of the carry-in portion 12. The second inclined plate 30y is formed of a flat plate member that is curved in an approximately L shape in a side view, and the lower side thereof is gradually inclined downward as it goes inward of the carry-in portion 12. Therefore, the first inclined plate 20y and the second inclined plate 30y are attached to the corresponding base portions while facing the carry-in portion 12 side. The first inclined plate 20y is attached to the support plate portion 10y of the second base portion 6y, and is disposed in the moving path of the roller portion 20a of the holding claw 20 when the tilt arm 18 described later is tilted. The upper end of the first inclined plate 20y is rotatably attached around the support shaft 14y of the support plate portion 10y, and the back side of the first inclined plate 20y is supported by the support pins 12y. The upper end of the second inclined plate 30y is bent toward the left, and the upper end is attached to the upper surface of the front portion of the third base portion 8y. The lower side of the second inclined plate 30y is disposed below and in front of the first inclined plate 20y, and further disposed in the moving path of the roller portion 20a. By arranging the inclined plates 20y and 30y in this way, the roller portion 20a of the holding claw 20 comes into contact with the first inclined plate 20y and the second inclined plate 30y in this order when the inclined arm 18 described later is inclined. It becomes. In the present embodiment, the first inclined plate 20y is disposed in the middle of the movement path of the holding claw 20 when the tilting arm 18 stands up. For this reason, in the present embodiment, the first inclined plate 20y contacts the holding claws 20 in the middle of standing and is pressed upward to rotate around the support shaft 14y of the support plate portion 10y and retreat upward. It is configured.

[Regulatory mechanism]
The restriction mechanism ZM is a mechanism for restricting the positional deviation of the pallet P1 toward the entrance 14 shown in FIG. 4 with reference to FIGS. 13 and 14, and is provided in the second carry-in frame portion 4i of the carry-in portion 12. Can do. The restriction mechanism ZM includes a rod-like protruding arm portion 2z, a retracting roller 4z, and a restriction arm 6z. The retracting roller 4z is a roller that is rotatably attached to the tip of the protruding arm portion 2z, and the regulating arm 6z is a rod-shaped portion that is bent toward the tip while branching in a substantially L shape from the middle of the protruding arm portion 2z. It is. In the present embodiment, the proximal end side of the projecting arm portion 2z is attached to the attachment plate portion 26i of the second carry-in frame portion 4i, and the distal end side of the projecting arm portion 2z is disposed to project into the carry-in portion 12. At this time, the retracting roller 4z is arranged on the front side, and the regulating arm 6z side is arranged on the rear side. A mounting shaft 27i that protrudes rearward is provided on the rear surface of the mounting plate portion 26i, and the proximal end side of the protruding arm portion 2z is rotatably mounted around the mounting shaft 27i. Thus, the protruding arm portion 2z can be rotated upward with the mounting shaft 27i as a base point, and forward movement is restricted by the mounting plate portion 26i.

  Referring to FIG. 13, the retracting roller 4 z of the projecting arm portion 2 z comes into contact with the pallet P <b> 1 to be carried in when the cart T <b> 1 is carried into the carry-in unit 12 described later. At this time, the retracting roller 4z rides on the pallet P1 while rotating around the axis of the projecting arm 2z by pressing from the pallet P1, so that the projecting arm 2z moves upward and retracts from the movement path of the pallet P1. To do. Referring to FIG. 14, when pallet P1 is arranged in carry-in portion 12, retracting roller 4z rolls off from pallet P1, and the leading end side of protruding arm portion 2z protrudes to carry-in portion 12 side. In this state, since the restricting arm 6z of the projecting arm 2z is disposed in front of the pallet P1, even if the pallet P1 tries to move to the front entrance 14 side, the pallet P1 comes into contact with the restricting arm 6z and the movement is halfway. Will be regulated.

[Pallet loading work]
With reference to FIGS. 1 to 3, the pallet P <b> 1 loaded in the state of being laid on the carriage T <b> 1 is conveyed from the entrance 14 of the carry-in device 10 to the carry-in unit 12. The pallet P <b> 1 is transferred to the conveyance path 2 while standing, and then conveyed to a predetermined place via the conveyance path 2. At this time, the pallet P1 on the carriage T1 is moved up to the conveying path 2 by the action (mechanical mechanism) of the standing device 16 of the carry-in device 10, but in this type of configuration, the burden on the operator is reduced. It is desirable to reduce as much as possible.

  Therefore, in this embodiment, when the carriage T1 is loaded into the loading section 12 shown in FIGS. 1 and 2, the tilting arm 18 is moved via the second wire 12x by moving the slider 2x while pressing the carriage T1 with the carriage T1. Tilt. At this time, the holding claw 20 moves to the outside of the loading portion 12 while avoiding the pallet P1 in the loading portion 12 by the first inclined plate 20y, and then moves to the inside of the loading portion 12 by the second inclined plate 30y. By engaging with the pallet P1, the pallet P1 is held by the tilting arm 18 in the tilting posture. When the carriage T1 is unloaded from the carry-in unit 12, the pallet P1 is moved to the rear of the carry-in unit 12 while being in the standing posture together with the tilting arm 18 by the pulling of the first wire 11x by the pulling unit (6x). It is arranged on the road 2. As the tilting arm 18 stands, the rotating shaft portion 10i rotates in the reverse direction while lowering the second weight portion 6x, so that the projecting portions 40i and 42i shown in FIG. 4 move upward while supporting the pallet P1. To do.

  In other words, in this embodiment, the slider 2x is pushed by the carriage T1 together with the contact rod 4x and pulls the second wire 12x while moving backward, so that the tilting arm 18 resists pulling of the first wire 11x. Tilt toward the front. At this time, the tilting arm 18 is tilted and the first wire 11x is pulled forward. With reference to FIG. 11 and FIG. 12, after the lower weight portion 20x is lifted and comes into contact with the upper weight portion 10x, Both of these weight parts (first weight part 6x) rise to the upper end of the guide column 9i. Referring to FIG. 10, as the tilt arm 18 tilts, the roller portion 20a of the holding claw 20 contacts the first inclined plate 20y and the second inclined plate 30y in this order. At this time, the holding claw 20 moves to the left of the carry-in part 12 along the first inclined plate 20y while avoiding the pallet P1 in the carry-in part 12 (see arrow D1 in FIG. 10). Furthermore, it is inserted into the holding hole 10p of the pallet P1 while being moved along the lower part of the second inclined plate 30y (rightward) into the carry-in portion 12 (see arrow D2 in FIG. 10). Further, referring to FIG. 2, while rotating the rotary shaft portion 10 i according to the tilting operation of the tilting arm 18, the protruding portions 40 i and 42 i are protruded into the carry-in portion 12 and arranged below the pallet P <b> 1.

  Further, referring to FIG. 13 and FIG. 14, the positional deviation of the pallet P <b> 1 arranged in the carry-in unit 12 is regulated by the regulation mechanism ZM or the like. In the present embodiment, when the carriage T1 is carried into the carry-in portion 12, the roller portion 20a of the projecting arm portion 2z rides on the pallet P1 while rotating by pressing from the pallet P1, so that the projecting arm portion 2z is Then, it moves upward and retreats from the moving path of the pallet P1. And by arrange | positioning the pallet P1 in the carrying-in part 12, the roller part 20a rolls off from the pallet P1, and the front end side of the protrusion arm part 2z protrudes in the carrying-in part 12 side. In this state, the restricting arm 6z of the projecting arm portion 2z is disposed in front of the pallet P1, and therefore, even if the pallet P1 tries to move to the front entrance 14 side, the pallet P1 comes into contact with the restricting arm 6z and the movement is halfway. Be regulated. Thus, in this embodiment, the right side of the pallet P1 is positioned by the restriction mechanism ZM, and the left side of the pallet P1 is held by the holding claws 20. Further, the pressing arm 18b of the tilting arm 18 is pressed against the upper surface of the pallet P1, so that the pallet P1 can be maintained in an appropriate posture.

  When the carriage T1 is unloaded from the loading portion 12 shown in FIG. 3, the tilting arm 18 stands up by pulling the first wire 11x using the lowering (falling) of the first weight portion 6x. In the middle of standing of the tilting arm 18, referring to FIG. 12, the upper weight portion 10x and the lower weight portion 20x are both lowered (dropped), and the first wire 11x is strongly pulled. Further, at the end of the tilting arm 18 standing up, referring to FIG. 11, since the lowering of the upper weight portion 10x is restricted by the stopper piece si, the first wire 11x is pulled by the lowering (falling) of only the lower weight portion 20x. To do. Thus, the tilting arm 18 can be gently raised by weakening the traction force of the first wire 11x in the middle. Further, referring to FIG. 3, the rotating shaft portion 10 i rotates in the reverse direction while lowering the second weight portion 6 x while following the rising operation of the tilting arm 18, so that each of the projecting portions 40 i and 42 i moves the pallet P <b> 1. Move upward while supporting. As the tilting arm 18 rises, the slider 2x moves forward via the second wire 12x and returns to its original state. Thus, in this embodiment, the pallet P <b> 1 is erected by the function of the standing portion 16, and is transferred onto the conveyance path 2 through the transfer roller 4 of the conveyance path 2. Then, the pallet P <b> 1 in the standing state is transported to a predetermined place while passing on the transport path 2.

  As described above, in the present embodiment, the pallet P1 is transferred to the conveyance path 2 while standing by using the carry-in input of the carriage T1 and the force for raising the tilting arm 18 and further moving the holding claw 20 mechanically. can do. At this time, in the present embodiment, the tilting arm 18 can be erected together with the pallet P1 by using the force of lowering (falling) the first weight portion 6x as the pulling portion. Furthermore, in the present embodiment, the projecting portions 40i and 42i of the rotating shaft portion 10i can support the pallet P1 while utilizing the weight of the second weight portion 44i. For this reason, in this embodiment, since there is assistance of the protrusions 40i and 42i using the second weight portion 44i, the tilting arm 18 is raised together with the pallet P1 using the first weight portion 6x having an appropriate weight. Can do. Further, in the present embodiment, the positional displacement of the pallet P1 in the carry-in portion 12 can be suitably prevented by mechanically moving the restriction mechanism ZM while using the carry-in input of the carriage T1 and arranging it at an appropriate position. it can. For this reason, according to the present embodiment, it is possible to transport the pallet P1 in an upright state while reducing the burden on the worker as much as possible using a mechanical mechanism.

<Example 2>
Since the transport apparatus 1A according to the second embodiment has substantially the same basic configuration as the transport apparatus 1 according to the first embodiment, a detailed description thereof is omitted by assigning corresponding reference numerals to common structures and the like. Referring to FIG. 15, the transport apparatus 1 </ b> A of the present embodiment includes a transport path 2 that is the same as that of the first embodiment, a carry-in device (not shown) that is the same as that of the second embodiment, and a carry-out device 30. In the present embodiment, the pallet P1 is carried from the carry-in device and moved on the transport path 2, and is taken out to another cart T2 by the carry-out device 30 provided at a predetermined place. At this time, the operation (mechanical mechanism) of the support mechanism SM provided in the carry-out device 30 allows the pallet P1 to be taken out on the other cart T2, while this type of configuration reduces the burden on the worker as much as possible. It is desirable to be able to do it. Therefore, in this embodiment, the transported pallet P1 is carried out while reducing the burden on the worker as much as possible by using a mechanical mechanism described later. Hereinafter, each configuration will be described in detail.

[Unloading device]
Referring to FIG. 15, the carry-out device 30 is a device that transfers the pallet P1 in an upright state on the conveyance path 2 (2A) to another cart T2 while laying it down. The carry-out device 30 includes a carry-out unit 32 and a exit port 34, and a support mechanism SM (described later) that is a mechanical mechanism. Here, an auxiliary transport path 2 </ b> A as a part of the transport path 2 is provided in the carry-out device 30. The auxiliary transport path 2A is a short transport path having substantially the same configuration as the transport path 2, and is disposed on an extension line of the transport path 2 while facing in the left-right direction in a later-described unloading section 32.

  And the carry-out part 32 is a site | part which can arrange | position the other trolley | bogie T2 carried in the right end and the front of the conveyance path 2 with reference to FIG. The unloading portion 32 includes a pair of unloading frame portions (first unloading frame portion 2o, second unloading frame portion 4o), a pair of unloading column portions (first unloading column portion 6o, second unloading column portion 8o), A frame body portion 10o is provided. The left first carry-out frame portion 2o and the right second carry-out frame portion 4o are each composed of a prismatic member elongated in the front-rear direction, and another carriage T2 is provided between the carry-out frame portions 2o and 4o. Can be entered. The exit 34 is a part that allows the other carriage T2 to exit or enter the unloading portion 32, and is formed between the front ends of the unloading frame portions 2o and 4o.

  Moreover, with reference to FIG. 15, the 1st carrying-out pillar part 6o and the 2nd carrying-out pillar part 8o are square pillar-shaped parts which stand up behind 2 A of auxiliary conveyance paths, respectively, The lower end is a corresponding carrying-out frame part. It is connected. In the present embodiment, the first carry-out column portion 6o is provided in the left first carry-out frame portion 2o, and the second carry-out column portion 8o is provided in the right second carry-out frame portion 4o. The pair of carry-out column portions 6o and 8o are provided with a reinforcing column 20o and a support shaft portion 22o as a configuration for the second auxiliary roller conveyor 36 and a support mechanism SM described later. The second auxiliary roller conveyor 36 is arranged in a bridge shape between the upper ends of the pair of carry-out column portions 6o and 8o. The reinforcing column 20o is formed of a prismatic member that is long on the left and right, and can be attached in a bridging manner between the pair of carry-out column portions 6o and 8o. In the present embodiment, a plurality of bolt holes BH are provided on the upper inner surfaces of the carry-out post portions 6o, 8o in parallel vertically, and the reinforcing struts 20o are bolted to appropriate bolt holes BH in the vertical direction. Can be stopped. The support shaft portion 22o is formed of a columnar member that is long on the left and right, and is held by a pair of holding portions 21o that protrude from the front surface of the reinforcing support 20o. The pair of holding portions 21o are provided separately on the left and right at the front portion of the reinforcing column 20o, and can support the support shaft portion 22o in a balanced manner in the left-right direction. Then, with reference to FIG. 16, a rear support portion 4 s of a support mechanism SM described later can be rotatably held on the support shaft portion 22 o.

  And the frame part 10o is comprised by the substantially cube-shaped frame, and is arrange | positioned so that a pair of unloading pillar part 6o, 8o may be enclosed. And the front side part of the frame body part 10o is comprised by the substantially reverse U-shaped front frame part 12o, and the lower end of this front frame part 12o is being fixed to the corresponding carrying-out frame part. The front frame portion 12o is disposed in front of the auxiliary conveyance path 2A, and a support shaft 16o and a support plate 17o are provided above the front frame portion 12o with reference to FIG. The support shaft 16o is composed of a columnar member extending in the left-right direction, and is disposed in front of the upper center of the front frame portion 12o. The support plate 17o is formed of a substantially rectangular flat plate projecting downward from the front frame portion 12o behind the support shaft 16o, and a pair of support bolts 18o project forward on the front surface thereof.

[Support mechanism]
15 to 17, the support mechanism SM is a mechanism that supports the pallet P1 that is going to be displaced from a standing state to a laid state. As a mechanical mechanism, the support mechanism 2s and the back support are supported. 4s is provided. Referring to FIGS. 15 and 17, the front support portion 2 s is configured by a substantially rectangular member that is long in the vertical direction when viewed from the front. The front support portion 2s has an appropriate hardness and can maintain its shape as much as possible when contacting the pallet P1. A band-shaped support band body 3s is integrally provided on the rear surface of the front support part 2s, and the lower side of the support band body 3s is gradually bent backward as it goes downward while leaving the front support part 2s. doing. In the present embodiment, the upper side of the front support portion 2s is disposed in front of the auxiliary conveyance path 2A while being rotatably attached to the support shaft 16o of the front frame portion 12o. In this way, the front support portion 2s can move in the direction approaching or separating from the pallet P1 in the upright state, with the support shaft 16o at the upper end portion as a base point. Further, the upper rear side of the front support portion 2s is back supported by each support bolt 18o protruding from the support plate 17o.

  Further, referring to FIG. 15, the rear support portion 4s is provided on the rear side of the carry-out portion 32 opposite to the exit port 34 with the auxiliary conveyance path 2A interposed therebetween. Referring to FIGS. 15 and 16, the rear support portion 4 s is configured by a substantially rectangular frame in front view, and includes a pair of first arms 6 s and 7 s and a pair of second arms 8 s and 9 s. The pressing roller portion 10s, the holding piece portion 12s, the first shaft portion 21s, the second shaft portion 22s, and the weight portion 24s are provided. The pair of first arms 6s and 7s is formed of a substantially rectangular flat plate that is long in the vertical direction. Referring to FIG. 16, a pair of first connecting portions J1 is provided at the upper ends of the first arms 6s and 7s, and a pair of second arms is provided at the lower ends of the first arms 6s and 7s. A connecting portion J2 is provided (in FIG. 16, only the right first arm is shown for convenience). The pair of first connecting portions J1 (the pair of second connecting portions J2) are ring-shaped portions that are arranged at appropriate intervals in the left-right direction at the ends of the first arms 6s, 7s, and correspond as described later. A shaft part can be inserted.

  The pair of second arms 8s and 9s is also made of a substantially rectangular flat plate that is long in the vertical direction with reference to FIG. 15, and a ring-shaped third connection with reference to FIG. A portion J3 is provided (in FIG. 16, only the right second arm is shown for convenience). The lower ends of the second arms 8s and 9s are bent forward, and holding pieces 12s are formed at the bent ends of the second arms 8s and 9s. A curved piece 13s that curves backward is attached to the front surface of the holding piece portion 12s, and the curved piece 13s is disposed so as to face the bottom surface of the pallet P1. In addition, a first holding portion 16s is provided on the front surface of each of the second arms 8s and 9s in the middle of being placed in the vertical direction. The first holding portion 16s has a cylindrical pressing roller portion that is long on the left and right. 10s can be attached. A second holding portion 18s is provided on the rear surface of each of the second arms 8s and 9s in the middle of the vertical direction, and the second holding portion 18s has a columnar second shaft portion that is long on the left and right. 22s can be attached. A flat plate-like third holding portion 19s protruding rearward is provided at the lower end of each of the second arms 8s, 9s. The third holding portion 19s has a flat weight portion that is long in the left-right direction. 24s (weight) can be attached.

  In the present embodiment, referring to FIG. 15, the first arms 6s and 7s are respectively attached to the left end side and the right end side of the support shaft portion 22o. At this time, referring to FIG. 16, the pair of first connecting portions J1 provided at the upper ends of the first arms 6s and 7s can be rotatably attached to the support shaft portion 22o while being arranged on the left and right of the holding portion 21o. . In this state, each of the first arms 6s and 7s is gradually inclined backward as it goes downward, and is attached to the support shaft portion 22o. Thus, the first arms 6s and 7s are arranged so as to be able to rotate (swing) rearward from the support shaft portion 22o.

  Next, the upper ends of the corresponding second arms 8s and 9s are rotatably attached to the lower ends of the first arms 6s and 7s. At this time, referring to FIG. 16, the pair of second connecting portions J2 provided at the lower ends of the first arms 6s and 7s are arranged on the left and right of the third connecting portion J3 provided at the upper ends of the second arms 8s and 9s. However, the columnar first shaft portion 21s extending in the left-right direction is rotatably inserted into these connecting portions. In this state, the second arms 8s and 9s are attached in a state of hanging downward from the lower ends of the first arms 6s and 7s. Thus, the second arms 8s and 9s are arranged so as to be able to rotate (swing) back and forth around the first shaft portion 21s provided at the lower ends of the first arms 6s and 7s.

  Then, with reference to FIGS. 15 and 16, the pressing roller portion 10s is attached to the first holding portion 16s of each of the second arms 8s and 9s and is arranged in a bridging shape in the left-right direction. The pressing roller portion 10s is attached to the left and right first holding portions 16s via a shaft (reference number omitted) extending left and right at the center thereof, and is rotatable around the shaft. Next, the cylindrical second shaft portion 22s is attached to the second holding portion 18s of each of the second arms 8s and 9s and is arranged in a bridging manner in the left-right direction. The second shaft portion 22s protrudes from the second arms 8s and 9s and protrudes leftward and rightward. Then, the left end and the right end of the second shaft portion 22s are arranged so as to be able to contact the corresponding carry-out column portions 6o, 8o, so that the over-rotation forward of the second arms 8s, 9s can be restricted. . Next, the weight portion 24s is attached to the third holding portion 19s of each of the second arms 8s and 9s and arranged in a bridging manner in the left-right direction. The weight of the weight portion 24s can be appropriately set according to the weight of the pallet P1 to be pressed.

[Pallet unloading work]
With reference to FIG. 18, the pallet P <b> 1 in the standing state is transported from the transport path 2 into the carry-out device 30 and arranged on the auxiliary transport path 2 </ b> A. At this time, the front support portion 2s of the support mechanism SM is disposed in front of the pallet P1, and the rear support portion 4s of the support mechanism SM is disposed behind the pallet P1. Therefore, the pallet P1 is taken out on the other cart T2 by the action of the support mechanism SM (mechanical mechanism) provided in the carry-out device 30. In this type of configuration, it is desirable that the burden on the operator can be reduced as much as possible.

  Therefore, in the present embodiment, with reference to FIG. 19, when the other cart T <b> 2 is carried into the carry-out portion 32, the other cart T <b> 2 is brought into contact with the lower portion of the pallet P <b> 1 in the standing state and tilted. By doing so, the pallet P1 is tilted while pushing the rear support part 4s to the other side of the carry-out part 32 while being supported by the holding piece part 12s on the bottom surface side of the pallet P1. At this time, the bottom surface of the pallet P1 smoothly tilts along the curved piece 13s on the front surface of the holding piece 12s. At the same time, the upper side of the pallet P1 is tilted along the front support portion 2s while being pressed against the front support portion 2s. At this time, the upper part of the pallet P1 smoothly tilts along the support band 3s while pushing the front support part 2s slightly forward.

  Thus, referring to FIG. 20, the pallet P1 is placed on another cart T2 while being supported by the support portions 2s and 4s. At this time, the pressing roller portion 10s is pressed onto the pallet P1, whereby the second arms 8s and 9s are held in a lifted state. Referring to FIG. 21, when the other carriage T2 is unloaded from the unloading unit 32, the pressing roller unit 10s slides down while rolling from the pallet P1, so that the second arms 8s and 9s are moved to the second The arm 8s, 9s contacts and presses against the pallet P1 while rotating with the lower ends of the arms 8s and 9s as the base point. By doing so, even if the pallet P1 protrudes behind the other cart T2, it can be pushed out to an appropriate position on the other cart T2 by pressing the second arms 8s and 9s (weight portion 24s). .

  As described above, in this embodiment, the pallet P1 in the standing state can be tilted toward the other cart T2 while being supported by the rear support portion 4s of the support mechanism SM using the carry-in input of the other cart T2. it can. Further, the pallet P1 can be pushed out to an appropriate place on the other cart T2 by using the pressing force of the second arms 8s and 9s provided on the rear support portion 4s. In the present embodiment, the standing pallet P1 can be tilted toward the other cart T2 while being carefully tilted by the front support portion 2s and the rear support portion 4s. For this reason, according to the present Example, the pallet P1 conveyed can be carried out using the mechanical mechanism and reducing the burden on the worker as much as possible.

  The pallet conveyance device of the present embodiment is not limited to the above-described embodiment, and can take other various embodiments. For example, in this embodiment, although the structure of the carrying-in apparatus 10 was illustrated, it is not the meaning which limits the structure (a shape, a dimension, an arrangement position, a structural member, etc.) of the apparatus. For example, the carry-in part only needs to be able to carry a cart and a pallet, and the carry-in frame part and the carry-in pillar part can be omitted or added as appropriate. The shape of the tilting arm is not particularly limited as long as it can stand up together with the pallet, and various shapes such as a bar shape and a flat plate shape can be taken. Further, if the pallet can be raised without difficulty by the tilting arm, the assistance by the rotating shaft portion (second weight portion, protruding portion) can be omitted. In addition, a single or several protrusion part can be provided in a rotating shaft part, and this protrusion part can take various shapes, such as rod shape and flat plate shape which can support a pallet. In addition, a reel-like member (balancer) that can wind up the first wire can be used as the pulling portion. Moreover, one weight part can also be used as the first weight part. In addition, the structure of the mechanical mechanism used for various mechanisms can be appropriately changed as long as the same operation can be reproduced. For example, as the restricting mechanism, a projecting portion that can slide in and out of the carry-in portion can be used, and this restricting mechanism can be omitted as appropriate.

  In the present embodiment, the configuration of the carry-out device 30 is exemplified, but the configuration (shape, dimensions, arrangement position, constituent members, etc.) of the same device is not limited. For example, the carry-out section only needs to be able to carry in another cart and pallet, and the carry-out frame section and the carry-out pillar section can be omitted or added as appropriate. Moreover, the structure of the mechanical mechanism used for the support mechanism can be appropriately changed as long as the same operation can be reproduced. Further, the carry-out device can be provided with at least one of a front support part and a rear support part. Moreover, the front support part may be comprised with the substantially inverted U-shaped frame, for example. Further, the support band body can be omitted from the front support portion, and in this case, the front support portion itself may be curved. Further, one or more carry-out devices can be provided in the middle of the conveyance path, and the carry-out device can be provided on the opposite side of the carry-in device (for example, on the rear side of the conveyance path in this embodiment).

  Moreover, although the conveying apparatus of this embodiment can be used suitably for the conveyance of the pallet which conveys components of vehicle seats, such as a vehicle, an aircraft, and a train, for example, it is not limited to it. In addition, the structure of a pallet and each trolley | bogie can be changed suitably. The other cart is a term used to distinguish from the cart loaded into the carry-in section. For example, the cart T1 can be used as another cart in this embodiment.

DESCRIPTION OF SYMBOLS 1 Conveyance apparatus 2 Conveyance path 4 Transfer roller 10 Carry-in apparatus 12 Carry-in part 10i Rotating shaft part 40i, 42i Projection part 44i Second weight part 14 Advance entrance 16 Standing part 18 Tilt arm 18a Fixing bracket 18b Pushing arm 20 Holding claw 20a Roller Portion 20b rail portion XM tilting mechanism 2x slider 4x contact rod 6x first weight portion 6x second weight portion 10x upper weight portion 11x first wire 12x second wire 20x lower weight portion YM advance / retreat mechanism 4y first base portion 6y Second base portion 8y Third base portion 10y Support plate portion 12y Support pin 14y Support shaft 20y First inclined plate 30y Second inclined plate ZM Restriction mechanism 2z Protruding arm portion 4z Retraction roller 6z Restriction arm 30 Unloading device 32 Unloading portion 34 Exit 36 Auxiliary roller conveyor SM Support mechanism 2s Front support 3s Support band 4s Rear support 6s, 7s First Over arm 8s, 9s second arm 10s pressing roller portion 12s holding pieces 13s hoop 24s weight portion P1 pallet T1 truck T2 other carriage BP base portion

Claims (5)

In a pallet transporting device capable of transporting a standing rectangular pallet to a predetermined place,
The transport device includes a transport path that leads to the predetermined place, and a loading device that transfers the pallet stacked in a state of being laid on a cart to the transport path while standing up,
The carry-in device has a carry-in portion in which the cart carried into the side of the conveyance path can be arranged, and an entrance provided on one side of the carry-in portion to allow the carriage to enter the carry-in portion. And an erecting mechanism for erecting the pallet disposed in the carry-in unit,
The standing mechanism has a rod-like or flat plate-like tilting arm that can be raised or tilted, a holding claw that is movable in and out of the carry-in portion and is provided on the tilting arm, and stands the tilting arm. Or a tilting mechanism for tilting and a forward / backward mechanism for moving the holding claw forward and backward with respect to the carry-in part, and the tilt arm is provided on the other side of the carry-in part opposite to the entrance It is configured to be displaceable between a standing posture that stands up and a tilting posture that is disposed on the side of the pallet in the loading portion while being tilted from the base portion toward one side of the loading portion,
The tilt mechanism includes a traction portion provided on the other side of the carry-in portion, a slider that is movable between one side and the other side of the carry-in portion, and the traction portion and the tilt arm. A first wire that is routed; a second wire that is routed through the slider and the tilt arm; and the tilt wire is pulled by the pulling portion of the first wire. It is possible to displace the tilted posture against the pulling force of the first wire by pulling the second wire while moving the slider to the other side of the loading portion.
The advance / retreat mechanism has a first inclined plate that gradually inclines downward toward the outside of the carry-in portion, and a second inclined plate that inclines downward gradually toward the inward of the carry-in portion. The holding claw is provided in the middle of the movement path of the holding arm when the tilting arm is tilted. By tilting the tilting arm, the holding claw is moved along the first inclined plate from the carry-in portion. After moving in the direction, it is configured to move inward of the carry-in portion along the second inclined plate,
When the carriage is carried into the carry-in section, the tilting arm is tilted via the second wire by moving the slider while being pressed by the carriage, and the holding claw is tilted by the first slope. The plate is moved to the outside of the carry-in unit while avoiding the pallet in the carry-in unit by the plate, and is then moved to the inside of the carry-in unit by the second inclined plate to engage with the pallet. The pallet is held on the tilting arm,
At the time of unloading the carriage from the carry-in part, the pallet moves to the other side of the carry-in part while being in a standing posture together with the tilting arm by pulling the first wire by the pulling part. Pallet transport device configured to be arranged in A carrying-in frame portion that extends from one side to the other side of the tilting arm across the cart at the time of carrying-in, and a regulating mechanism that regulates the positional deviation of the pallet in the carrying-in portion. And the regulating mechanism has a projecting arm portion projecting into the carry-in portion on the entrance side of the pallet carried into the carry-in portion, and the projecting arm portion presses the pallet during the carry-in And can be moved upward or outward of the carry-in part and arranged to be restricted from moving to one side of the carry-in part,
When the carriage is carried into the carry-in part, the projecting arm part is moved upward or outward by pressing from the pallet so as to retreat from the movement path of the pallet, and the pallet is placed in the carry-in part. The pallet transport device according to claim 1, wherein the pallet transport device is configured to protrude into the carry-in portion on the entrance side of the pallet in the arranged state. The traction portion has a first weight portion attached to the carry-in portion so as to be movable up and down, and the first wire is routed via the first weight portion and the tilt arm, By pulling the first wire by lowering the first weight portion, the tilting arm is in a standing posture, and the first wire is pulled in the opposite direction by tilting the tilting arm, thereby The weight is configured to rise,
The carry-in part is fixed to the base point part and extends in a direction perpendicular to the carry-in direction of the carriage, and a projecting part that projects in a direction perpendicular to the direction in which the rotary shaft part extends, A second weight portion provided on the rotation shaft portion, and as the rotation shaft portion rotates about an axis by tilting of the tilting arm, the second weight portion gradually rises and the protruding portion Is configured to protrude into the carry-in portion at a position where it can be arranged below the pallet while gradually moving from above to below,
When the carriage is carried into the carry-in section, the carriage is carried into the upper part of the projecting section after moving the projecting section while the rotating shaft rotates while the tilting arm is tilted. And
At the time of unloading the carriage from the carry-in part, the tilting arm is in an upright posture by pulling the second wire by lowering the first weight part, and the rotating shaft part is the second weight part. The pallet transport device according to claim 1, wherein the projecting portion is configured to move upward while supporting the pallet by rotating backward while lowering the pallet. The transport device comprises a carry-out device that transfers the pallet in an upright state on the transport path to another cart while lying down,
The unloading device is provided on one side of the unloading unit and can be moved out of the unloading unit, the unloading unit being capable of arranging the other unloaded cart loaded into the side of the transport path. And a support mechanism for supporting the pallet to be displaced from the standing state to the laid state,
The support mechanism has a rear support part provided on the other side of the carry-out part opposite to the exit port across the pallet on the conveyance path, and the rear support part is close to the pallet or A first arm that is movable in a separating direction and that gradually tilts away from the pallet as it goes downward, a second arm that hangs downward from the first arm, and the second arm to the pallet. A pressing roller portion that protrudes toward the pallet, and a holding piece portion that bends toward the pallet from the lower end of the second arm portion, and the second arm rotates around the lower end of the first arm. While being able to move in the direction of approaching or separating from the pallet,
When the other carriage is brought into the carry-out section, the pallet is placed on the holding piece portion on the bottom side of the pallet when the other carriage is brought into contact with the lower portion of the pallet in the standing state and tilted. While being supported, the rear support portion is tilted while being pushed up to the other side of the carry-out portion, and the pressing roller portion is pressed against the pallet when the pallet is placed on the other carriage. Being held in a state where the second arm is lifted,
When the other carriage is unloaded from the unloading portion, the pressing roller portion slides down from the pallet, so that the second arm contacts the pallet while rotating around the lower end of the first arm. The pallet transport device according to any one of claims 1 to 3, wherein the pallet transport device is configured to contact and press. The support mechanism has a front support portion that is provided on one side of the carry-out portion from the pallet on the transport path and hangs downward.
The front support portion is movable in a direction approaching or separating from the pallet with an upper end portion as a base point;
The pallet transport device according to claim 4, wherein when the other carriage is carried into the carry-out part, the upper side of the pallet is inclined while being pressed against the front support part.

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