JP5197180B2 - Stacking equipment - Google Patents

Description

  The present invention relates to a stacking apparatus for stacking a plurality of carts.

  Conventionally, for example, a stacking device described in Patent Document 1 below is known.

  This conventional stacking device is a gate-type lifting body that can be moved up and down in the machine frame, and is provided at the lower end of both legs of the lifting body and can be moved to a support position and a non-support position, and is located at the support position. And a support body that is a claw for holding the carriage, and a carriage guide rail that extends from the entrance opening of the machine frame to the back at the bottom of the machine frame.

The cart stacked in this stacking device has a pair of left and right handles erected on the rear side of the frame, and a stage for receiving the frame of the cart to be stacked on top of each handle without misalignment. A product engaging portion is formed, and a step product engaging portion is provided on the front side of the frame to hold the frame of the cart to be stacked, and the front and rear step product engaging portions prevent displacement between the upper and lower carts. Is done.
Japanese Patent Laid-Open No. 11-59906 (FIG. 1, FIG. 2, etc.)

  However, in the conventional stacking device, stacking can be performed if the cart has front and rear stacking engagement portions for preventing misalignment. For example, in the case of a cart that does not have such front and rear stacking engagement portions. May not be stacked.

  This invention is made in view of such a point, and provides the stacking apparatus which can appropriately stack a several trolley | bogie in the state by which the wheel of one trolley | bogie is mounted on the trolley | bogie main body of another trolley | bogie. For the purpose.

  The stacking device according to claim 1 includes a carriage main body, a wheel support provided on the carriage main body so as to be rotatable about a vertical axis, and a wheel rotatably supported by the wheel support. A stacking device that stacks a plurality of carts in a state in which the wheels of one cart are placed on the cart body of another cart, and the wheels are rotated by rotating the wheels while the wheels are placed. The rotating body for changing the direction of the wheel by rotating the support body relative to the main body of the carriage, the lifting body that can be lifted and lowered, and the lifting body can be lifted and lowered and can be moved to the support position and the non-supporting position. Yes, the support body that supports the main body of the carriage in the state of being in the support position, and can be moved up and down together with the lifting body, and can be moved to the restriction position and the non-restriction position. The rear wheel support is the base Those comprising a regulating member for regulating the rotating relative to the body.

  The stacking device according to claim 2 is the stacking device according to claim 1, wherein the restricting body abuts against the wheel by moving to the restricting position when the support is located at the supporting position. The rotation with respect to the cart body is regulated.

  The stacking device according to claim 3 is the stacking device according to claim 2, wherein the carriage has at least four wheels on the front, rear, left, and right, and the rotating body for changing the direction of the two wheels on the rear side. It changes so that it may become opposite to the direction of two said wheels of a front side, and a control body contact | abuts to each said wheel and controls rotation with respect to the trolley | bogie main body of a wheel support body.

  The stacking device according to claim 4 is the stacking device according to any one of claims 1 to 3, wherein the rotating body for changing the direction is a rotating plate portion that rotates with a wheel placed on the upper surface. And a wheel guide plate portion which is erected on the upper surface of the rotating plate portion and forms a pair which is spaced apart from each other.

  According to the first aspect of the present invention, since the regulating body regulates that the wheel support body of the carriage whose direction of the wheel is changed by the orientation changing rotary body with respect to the carriage body, the plurality of carriages are It is possible to appropriately stack the wheels of one truck so as to be placed on the truck body of another truck.

  According to the second aspect of the present invention, the restricting body is brought into contact with the wheel by moving to the restricting position when the support is in the support position, thereby restricting the rotation of the wheel support with respect to the cart body. Thus, the rotation of the wheel support relative to the cart body can be appropriately restricted.

  According to the third aspect of the present invention, a plurality of carts having at least four front, rear, left and right wheels can be appropriately stacked in a state where the wheels of one cart are placed on the cart body of another cart.

  According to the invention which concerns on Claim 4, the direction of a wheel can be changed appropriately by rotating a rotation board part in the state which located the wheel between the wheel guide board parts which make a pair.

  An embodiment of the stacking apparatus of the present invention will be described with reference to the drawings.

  1 to 6, reference numeral 1 denotes a stacking device. The stacking device 1 stacks a plurality of carts 2 in a plurality of stages in the vertical direction (stacker operation) and a plurality of stacked units. This is a cart stacker that performs a cut-out operation (one-car cut operation) for cutting out the carts 2 one by one.

  As shown in FIG. 14, the cart 2 includes a cart body 3 having a substantially rectangular shape and a substantially plate shape on which a load (not shown) such as a case is placed on the upper surface, and four corners of the cart body 3. The wheel support 4 is provided so as to be rotatable about a vertical axis 6, and the four front, rear, left and right free wheels are supported by each wheel support 4 so as to be rotatable about a horizontal axis 7. And wheels 5. The cart body 3 is composed of a horizontal plate portion 8 which is a substantially rectangular outer shape on which the load is placed on the upper surface and is slightly long in the front-rear direction, and a standing plate portion which is erected on the outer peripheral end of the horizontal plate portion 8. It has a certain vertical plate part 9. The horizontal flat plate portion 8 is formed with two slightly long holes 8a in the front-rear direction.

  Then, based on the stacking operation of the stacking apparatus 1, the plurality of carts 2 are arranged such that four wheels 5 in the front, rear, left and right of one cart (upper cart among the carts adjacent to the top and bottom) 2 Stacked in the stacking area 10 as being placed in direct contact with the upper surface of the four corners of the horizontal plate portion 8 of the bogie body 3 of the lower bogie 2). (See FIG. 2 and the like).

  At the time of stacking, the front, rear, left and right four wheels 5 are inward and do not protrude outward from the outer peripheral end of the cart body 3 in plan view, but directly on the horizontal plate 8 of the cart body 3. It is placed and the fall from the horizontal plate portion 8 is prevented by the contact with the vertical plate portion 9.

  As is clear from FIG. 14, when the carriage 2 is moved, the front, rear, left and right four wheels 5 of the carriage 2 are in a rearward direction with respect to the movement direction, and the rear two wheels 5 are substantially the same. Half part protrudes toward the back from the rear end part of cart body 3 by plane view. Further, as shown in FIG. 8, the vertical axis Y passing through the axis of the vertical axis 6 does not intersect the horizontal axis X passing through the axis of the horizontal axis 7, and the horizontal axis X is the vertical axis Y. It is located more backward in the moving direction.

  The stacking apparatus 1 includes a machine frame 11 that is formed in a box shape from a frame material or the like and has a stacking region 10 that is a space inside. A bogie entrance 12 is formed in one side of the machine frame 11, and a bogie exit 13 is formed in the lower part of the other side of the machine frame 11.

  Both side portions which are a part of the carriage entrance 12 can be opened and closed by a pair of opening / closing bodies 14 such as a pair of manual guide gates facing each other (see FIG. 6). Each opening / closing body 14 is provided in the machine casing 11 so as to be rotatable about 90 degrees at an open position and a closed position about a vertical axis 15.

  The carriage 2 is stacked in the stacking area 10 in the machine frame 11 with both the opening / closing bodies 14 in the closed position and the both sides of the carriage entrance 12 being closed. If the cart 2 already stacked in step 2 is transported to the stacking area 10 in the machine frame 11 or if the cart 2 filled with the stacking area 10 is full, etc. Rotate 14 to the open position to open the entire carriage entrance 12.

  A pair of first guide rails 21 for guiding the wheels 5 of the carriage 2 are laid at the bottom of the entrance-side standby area 16 communicating with the lower part of the carriage entrance 12 of the machine frame 11. Each of the first guide rails 21 includes an inclined portion 21a that is inclined upward toward the carriage inlet 12 and a horizontal portion 21b that is connected to the upper end of the inclined portion 21a. Each of the first guide rails 21 is a pair of a guide bottom surface 22 for guiding the wheel 5 and a pair of the guide bottom surfaces 22 that stand upright and opposite to each other in the width direction to prevent the wheel 5 from falling from the guide bottom surface 22. And a guide side surface 23.

  In addition, a pair of second guide rails 26 for guiding the wheels 5 of the carriage 2 are horizontally extended over the bottom of the stacking area 10 and the bottom of the exit side standby area 17 communicating with the carriage outlet 13 of the machine frame 11. Is laid. Each of the second guide rails 26 is, like the first guide rail 21, a guide bottom surface 27 that guides the wheels 5, and stands upright at both ends in the width direction of the guide bottom surface 27 so as to be spaced apart from each other and the wheels 5 from above the guide bottom surface 27. It has a pair of guide side surfaces 28 that prevent it from falling.

  And between the guidance termination | terminus part of the 1st guide rail 21, and the guidance start end part of the 2nd guide rail 26, the two wheels 5 of the rear side of the trolley | bogie 2 are mounted on the upper surface, and the trolley | bogie 2 is. The wheel support 4 is centered on the shaft 6 with respect to the cart body 3 by rotating about 180 degrees about the vertical axis (not shown) located on the same straight line as the shaft 6, that is, about the vertical axis Y. Rotating bodies 31 for changing the direction such as a pair of rotary tables are arranged so as to change the direction of the two rear wheels 5 to be opposite to the direction of the two front wheels 5. In other words, the orientation changing rotator 31 is disposed at the bottom of the stacking region 10 and in the vicinity of the carriage entrance 12.

  As shown in FIGS. 7 and 8, each orientation changing rotator 31 is attached to a rotating portion 33 of a rotary cylinder 32 that is a rotator driving means for rotating the orientation changing rotator 31. Each orientation changing rotator 31 has a substantially disc-shaped rotating plate portion 34 that rotates in a state in which the wheel 5 of the carriage 2 is placed on the upper surface by the operation of the rotary cylinder 32. Is mounted horizontally on the upper surface of the rotating portion 33 of the rotary cylinder 32, and the upper surface of the rotating plate portion 34 is connected to the guide bottom surface 22 of the horizontal portion 21b of the first guide rail 21 and the guide bottom surface 27 of the second guide rail 26. Located on the same plane.

  A pair of wheel guide plate portions 35 that are spaced apart from each other and on which the wheel 5 that has moved on the guide bottom surface 22 is inserted are erected on the upper surface on one side of the rotating plate portion 34. Each wheel guide plate portion 35 has a first plate portion 35a positioned parallel to the moving direction of the wheel 5 of the carriage 2 (in the direction of the arrow in FIG. 7) and a separation distance toward the moving direction of the wheel 5. The second plate portion 35b is inclined with respect to the moving direction of the wheel 5 so as to decrease.

  On the other hand, the stacking device 1 causes the cart 2 positioned in the entrance side standby region 16 to pass through the cart entrance 12 when the cart 2 is loaded into the stacking region 10 in the machine frame 11. The first carriage moving means 41 is provided that moves on the guide rails 21 and 26 along the moving direction (conveying direction) up to 10, that is, for example, until it contacts the cylinder-type stopper means 40. In addition, the stacking device 1 allows the cart 2 positioned in the stacking region 10 to pass through the cart outlet 13 when the cart 2 is unloaded from the stacking region 10 in the machine frame 11, and the exit side standby region 17. Until the second guide rail 26 is moved along the moving direction (conveying direction). The carriage 2 that has moved to the exit-side waiting area 17 is restricted from moving in the opposite direction, that is, toward the carriage outlet 13 side of the machine frame 11 by contact with the anti-back stopper 43 that is a stopper means (see FIG. 3). ).

  Here, as shown in FIG. 9, the first carriage moving means 41 includes a moving body 46 such as an attachment unit that can move to a position in the entrance side standby area 16 and a position in the stacking area 10, and the moving body. It has a rodless cylinder 47 which is a moving body driving means for moving 46 along the guide part 48 together with the carriage 2.

  The movable body 46 is provided with a main body member 49 and a hook that is provided on the main body member 49 so as to be rotatable about a horizontal axis 50 and is engaged with the main body 3 while being inserted into the hole 8a of the main body 3. And a shaft-shaped first stopper member 52 that is provided on the main body member 49 and restricts the hook member 51 from rotating more than necessary by contact with the hook member 51. The hook member 51 is formed in a substantially plate shape, a central connecting portion 53 is rotatably connected to the main body member 49 via a shaft 50, and a weight member 54 is attached to one end portion. The main body member 49 is provided with a shaft-like second stopper member 55 that restricts the hook member 51 from rotating more than necessary due to contact with the weight member 54.

  Then, when the catching member 51 of the moving body 46 is in a vertical state along the vertical direction by the weight of the weight member 54, the carriage 2 is supplied to the entrance-side standby region 16 by, for example, manual operation of the operator. Then, the hook member 51 is pushed in front of the carriage body 3 in the moving direction and rotates about 90 degrees in one direction around the shaft 50. After that, when the hook member 51 is separated from the cart body 3, the hook member 54 rotates about 90 degrees in the other direction by the weight of the weight member 54 to return to the original vertical state, and the upper end portion which is the other end portion of the hook member 51. Is inserted through the hole 8a of the cart body 3, and the hooking member 51 is hooked and engaged with the inner surface of the cart body 3. When the hooking member 51 is moved by the operation of the cylinder 47, the carriage 2 moves along with the hooking member 51 along the horizontal moving direction until it comes into contact with the cylinder-type stopper means 40 in the machine frame 11, and thus The carriage 2 is carried into the stacking area 10 by the movement of the moving body 46. Note that after the carriage 2 is carried in, the hook member 51 of the moving body 46 is moved to a position in the original entrance-side waiting area 16 by the operation of the cylinder 47.

  The second carriage moving means 42 has the same configuration as the first carriage moving means 41, and a moving body 46 such as an attach unit that can move to a position in the stacking area 10 and a position in the exit side standby area 17; It has a rodless cylinder 47 which is a moving body driving means for moving the moving body 46 along with the carriage 2 along the guide portion 48. The moving body 46 includes a main body member 49, a hook member 51, a first stopper member 52, a second stopper member 55, and a weight member 54. Then, the carriage 2 is carried out of the stacking area 10 by the movement of the moving body 46 based on the operation of the cylinder 47.

  As shown in FIG. 10, the anti-back stopper 43 is formed in a substantially plate shape, has an abutment surface 61 on one end surface, and rotates about 10 degrees around a horizontal axis 63 on the support member 62. It is attached as possible. Further, since the anti-back stopper 43 is attached to the support member 62 via the shaft 63 at a portion closer to one end side than the center, the anti-back stopper 43 is directed toward one end side by rotation based on its own weight, that is, toward the moving direction of the carriage 2. It becomes an upward inclined state.

  When the carriage 2 is carried out of the stacking area 10 by the second carriage moving means 42 when the anti-back stopper 43 is inclined due to its own weight, the anti-back stopper 43 is When it is pushed by the cart body 3 and rotated about 10 degrees in one direction around the shaft 63, and then separated from the cart body 3, it rotates about 10 degrees in the other direction by its own weight and returns to its original tilted state. The contact surface 61 is in a state of facing the rear surface in the movement direction of the carriage body 3. As a result, the abutment of the abutment surface 61 and the rear surface of the carriage body 3 restricts the movement of the carriage 2 in the exit side standby region 17 in the counter-movement direction.

  On the other hand, the stacking device 1 can be moved up and down together with the lifting body 71 in the machine frame 11, that is, in the stacking area 10, and can be moved to the support position and the non-supporting position. In such a state, a pair of forks and other supports 72 that support the cart body 3 from below, and can be moved up and down together with the elevating body 71 and can be moved to the restricted position and the non-restricted position. A plurality of, for example, four restricting bodies 73 such as four wheel lock bars are provided for restricting the wheel support 4 of the carriage 2 after the direction of the wheels 5 from being changed by the rotating body 31 relative to the carriage main body 3.

  As shown in FIGS. 11 to 13, each lifting body 71 is a lifting frame or the like that can be lifted and lowered within the machine frame 11, and the lifting body 71 has an upper limit position, an intermediate position, and an intermediate position along the guide portion 74 of the machine frame 11. It can be moved up and down to the lower limit position. As shown in FIG. 13 and the like, each lifting body 71 is attached to a lifting body drive means 75 that can extend and retract in the vertical direction to lift and lower the lifting body 71.

  The elevating body driving means 75 is composed of, for example, two extendable cylinders connected to each other, that is, a first cylinder 76 and a second cylinder 77. The first cylinder 76 has a cylinder body 76a and a rod 76b that goes in and out of the cylinder body 76a, and an upper end portion of the rod 76b is attached to the lifting body 71. The second cylinder 77 has a cylinder body 77a having an upper end attached to the lower end of the cylinder body 76a of the first cylinder 76, and a rod 77b that goes in and out of the cylinder body 77a. The lower end of the rod 77b The part is attached to the cylinder support part 78.

  Then, when both the first cylinder 76 and the second cylinder 77 are extended as shown in FIG. 13A, the lifting body 71 is located at the upper limit position, and as shown in FIG. When the second cylinder 77 is extended and the second cylinder 77 is extended, the elevating body 71 is positioned at an intermediate position, and when both the first cylinder 76 and the second cylinder 77 are contracted as shown in FIG. The body 71 is located at the lower limit position.

  Further, as shown in FIGS. 11 and 12, at the lower end of each lifting and lowering body 71, a support body drive that can extend and contract in the horizontal direction is made to move the support body 72 to the support position and the non-support position along the horizontal direction. A support cylinder 81 as a means is attached.

  The support cylinder 81 has a cylinder main body 81a attached to the lower end of the elevating body 71 and a rod 81b that goes in and out of the cylinder main body 81a. The tip of the rod 81b of the support cylinder 81 can be moved forward and backward with respect to the lower side of the carriage body 3 of the carriage 2 by the operation of the support cylinder 81, that is, can be moved to the support position and the non-support position. A body 72 is attached.

  Each support body 72 has a vertical and vertical mounting plate portion 82 along the guide direction of the guide rails 21 and 26 that is the moving direction of the carriage 2, and this mounting plate portion 82 is provided on the support cylinder 81. Attached to the tip of the rod 81b. At a plurality of, for example, two locations on the lower end of the mounting plate portion 82, support plate portions 83 that are claw portions that support the cart main body 3 in a state of entering the lower portion of the cart main body 3 project toward the opposite side. ing.

  Further, at both ends in the longitudinal direction of the mounting plate portion 82 of each support 72, a restriction body that is a restriction body drive means that can extend and contract in the horizontal direction moves the restriction body 73 to the restriction position and the non-restriction position along the horizontal direction. A body cylinder 86 is attached (see FIG. 11).

  The restriction body cylinder 86 has a cylinder body 86a attached to the end of the attachment plate portion 82 of the support body 72, and a rod 86b that goes in and out of the cylinder body 86a. A restricting body 73 that can be brought into contact with and separated from the wheel 5 of the carriage 2 by the operation of the restricting body cylinder 86, that is, can be moved to the restricting position and the non-regulating position, at the tip end of the rod 86b of the restricting body cylinder 86. Is attached.

  Each regulating body 73 has a round shaft shape that regulates the rotation of the wheel support body 4 with respect to the cart body 3 by directly contacting the wheel 5 by moving to the regulation position when the support body 72 is located at the support position, for example. It has a rod-shaped part 87. That is, the wheel 5 is locked to the cart body 3 by the rod-shaped portion 87 of the restricting body 73. Further, the base end portion of the rod-shaped portion 87 is attached to the distal end portion of the rod 86b of the restrictor cylinder 86, and the distal end side of the rod-shaped portion 87 protrudes from the mounting plate portion 82 of the support 72 to the carriage 2 side. The protruding length from the mounting plate portion 82 and the protruding length of the support plate portion 83 from the mounting plate portion 82 are substantially the same.

  Further, the stacking apparatus 1 includes control means (not shown) for controlling the cylinders 32, 47, 76, 77, 81, 86 and the like, and the control means includes optical system sensors that are a plurality of detection means. Electrically connected. That is, for example, the stacking apparatus 1 includes a seating sensor 91, a carry-in confirmation sensor 92, a seating sensor 93, a carry-in confirmation sensor 94, a seating sensor 95, a full sensor 96, a full release sensor 97, and the like.

  Next, the operation of the stacking apparatus 1 will be described.

  For example, when the operator manually supplies the carriage 2 to the entrance-side standby area 16, the carriage 2 is moved to the carriage body 3 when the two front wheels 5 have climbed the inclined portion 21 a of the first guide rail 21. Is stopped by the hooking engagement between the inner surface of the first carriage moving means 41 and the hooking member 51 of the moving body 46 of the first carriage moving means 41. At this time, the presence sensor 91 is turned on, and the supply to the entrance standby area 16 is completed.

  Then, when the cylinder 47 of the first carriage moving means 41 is operated in a state where the hook member 51 is hooked and engaged with the inner surface of the carriage body 3, the carriage 2 is carried into the stacking area 10 and is brought into the stopper means 40. Stops in contact.

  At this time, when the presence sensor 93 is turned on and the carry-in confirmation sensor 92 is turned off, the loading into the stacking area 10 is completed. When the presence sensor 93 is turned on and the carry-in confirmation sensor 92 is turned on after a lapse of a predetermined time, an abnormality is assumed. The front, rear, left and right four wheels 5 of the carriage 2 carried into the stacking region 10 are in a state of facing backward with respect to the moving direction.

  When the carriage 2 preceding the exit-side waiting area (cart pickup area) 17 is not waiting, the cylinder 47 of the second carriage moving means 42 is activated, so that the carriage 2 is removed from the stacking area 10. It is carried out and carried into the exit side standby area 17.

  At this time, when the presence sensor 95 is turned on and the carry-in confirmation sensor 94 is turned off, the carry-in to the exit-side waiting area 17 is completed. When the presence sensor 95 is turned on and the carry-in confirmation sensor 94 is turned on after a lapse of a predetermined time, an abnormality is assumed. The carriage 2 carried into the exit side standby area 17 is prevented from backflow by the anti-back stopper 43.

  On the other hand, when the carriage 2 is waiting in the exit-side waiting area 17, the carriage 2 temporarily stands by in the stacking area 10 and is transferred to the next process by a robot hand or the like, thereby exiting the waiting area. When the carriage 2 disappears from the carriage 17, the carriage 2 is conveyed from the stacking area 10 to the exit side standby area 17 by the operation of the cylinder 47 of the second carriage moving means 42.

  Further, when the carriage 2 is waiting in the entrance side standby area 16, the stacking area 10 and the exit side standby area 17, when a predetermined time elapses, a stacking operation is performed and the carriage 2 is stacked in the stacking area 10. Pile up. It should be noted that the stacking operation may be performed when the operator presses a button for forced stacking.

  In addition, when the carriage 2 is stacked in the stacking area 10 and the carriage 2 is not supplied to the entrance-side standby area 16 and the carriage 2 disappears from the exit-side standby area 17, a cutting operation is performed. The carts 2 in the stacking area 10 are cut out one by one to the exit side waiting area 17.

  Further, when the number of stages of the carts 2 stacked in the stacking area 10 reaches the specified number, the full sensor 96 is turned on and the stacking operation is stopped. At this time, carry-in of the cart 2 to the stacking area 10 is stopped, and the cart 2 in the stacking area 10 is cut out to the exit side waiting area 17, or both the opening and closing bodies 14 are rotated to the open position to The cart 2 which is opened and stacked is taken out from the stacking area 10.

  Reloading from the entrance standby area 16 is not accepted until the full release sensor 97 is turned off. It is also possible to carry the stacked cart 2 into the stacking area 10 with the entire cart entrance 12 open, but only when the cart 2 is not in the stacking area 10.

  Next, the stacking operation will be described with reference to FIG.

  FIG. 15 (a) shows one truck 2 carried into the stacking area 10, and before the start of the stacking operation, as shown by the solid line, the four front and rear wheels 5 of the truck 2 are It is in a state of facing backward (counter-moving direction) with respect to the moving direction that has moved.

  When the carts 2 are stacked, first, the direction of the two rear wheels 5 is opposite to the direction of the two front wheels 5 as shown by a two-dot chain line in FIG. The rear wheel 5 is directed forward and the front wheel 5 is directed rearward. That is, the front, rear, left and right four wheels 5 of the carriage 2 face inward and are in a non-projecting state that can be stacked without projecting outward from the outer peripheral end of the carriage body 3 in plan view.

  That is, when the direction changing rotator 31 rotates based on the operation of the rotary cylinder 32, the two rear wheels 5 placed on the direction changing rotator 31 support the wheel about the shaft 6 in the vertical direction. It rotates about 180 degrees with respect to the cart body 3 together with the body 4 so that the direction of the two rear wheels 5 is opposite to the direction of the two front wheels 5.

  Next, as shown in FIG. 15 (b), when the support body cylinder 81 is operated in a state where the lifting body 71 is located at the lower limit position, the support body 72 moves from the non-support position to the support position, The support plate portion 83 of the support body 72 advances to four locations below the cart body 3 of the carriage 2, and the rod-shaped portion 87 of the regulation body 73 faces the front, rear, left and right four wheels 5 of the carriage 2.

  Subsequently, when the restriction body cylinder 86 is operated in a state where the support body 72 is located at the support position, the restriction body 73 moves from the non-restriction position to the restriction position, and as a result, the rod-shaped portion 87 of the restriction body 73 is moved to the carriage. 2, the rotation of the wheel support 4 with respect to the cart body 3 is restricted, and the four wheels 5 in the front, back, left and right of the cart 2 are locked to the cart body 3 by the regulation body 73. .

  Next, as shown in FIG. 15 (c), when the first cylinder 76 and the second cylinder 77 are operated to raise the elevating body 71 from the lower limit position to the upper limit position, the carriage 2 has the wheels 5 of the restriction body 73. While being locked by the rod-shaped portion 87, it is supported by the support plate portion 83 of the support 72 and lifted to a predetermined height position. Further, the next carriage 2 is carried from the entrance side standby area 16 below the raised carriage 2.

  Subsequently, as shown in FIG. 15 (d), when only the first cylinder 76 is operated and the elevating body 71 is lowered from the upper limit position to the intermediate position, the carriage 2 is placed on the next lower carriage 2. Is done. That is, the front, rear, left and right four wheels 5 of the upper cart 2 are placed in direct contact with the upper surfaces of the four corners of the horizontal plate portion 8 of the cart body 3 of the lower cart 2.

  After that, when the regulating body cylinder 86 is operated, the regulating body 73 moves from the regulated position to the non-regulated position, and as a result, the rod-shaped portion 87 of the regulating body 73 is separated from the wheel 5 and the wheel 5 is locked by the regulating body 73. Canceled.

  Next, as shown in FIG. 15E, when the support cylinder 81 is actuated, the support 72 is moved from the support position to the non-support position, and as a result, the support plate portion 83 of the support 72 is moved to the cart body 3. The rod-shaped portion 87 of the restricting body 73 is retracted from the position facing the wheel 5.

  Subsequently, as shown in FIG. 15 (f), only the second cylinder 77 is operated to lower the elevating body 71 from the intermediate position to the lower limit position, and then the support cylinder 81 and the regulating body cylinder 86 are sequentially moved. Operate. Then, when the first cylinder 76 and the second cylinder 77 are operated to raise the elevating body 71 to the upper limit position, the two stacked carts 2 are lifted to a predetermined height position. The cart 2 is carried in. By repeating such operations, a plurality of carts 2 are stacked in the stacking area 10.

  Next, the cut-out operation will be described with reference to FIG.

  FIG. 16A shows the cart 2 that has been stacked and supported by the support plate portion 83 of the support 72 located at the support position in a state in which the elevating body 71 is positioned at the upper limit position.

  Then, when cutting out the stacked carriage 2, as shown in FIG. 16 (b), when the first cylinder 76 and the second cylinder 77 are operated to lower the lifting body 71 from the upper limit position to the lower limit position, The stacked carts 2 are lowered together with the lifting body 71, the front wheels 5 of the bottom cart 2 are placed on the second guide rail 26, and the rear wheels 5 of the bottom cart 2 are changed in direction. Is placed on the rotating body 31 for use.

  Next, the restriction body 73 is moved from the restriction position to the non-regulation position by the operation of the restriction body cylinder 86 to release the lock of the wheel 5 by the rod-shaped portion 87 of the restriction body 73, and then the support body cylinder 81 is actuated. The support plate 83 is retracted from below the cart body 3 by moving the support 72 from the support position to the non-support position.

  Thereafter, as shown in FIG. 16C, after raising and lowering the body 71 from the lower limit position to the intermediate position, the support body 72 is moved to the support position, and then the regulation body 73 is moved to the regulation position to move the wheel. Lock 5

  Next, as shown in FIG. 16D, when the elevating body 71 is raised from the intermediate position to the upper limit position, the stacked carriage 2 is supported by the support plate portion 83 of the support body 72 and has a predetermined height. It is lifted to the position and is separated from the bottom carriage 2.

  Then, the single carriage 2 located at the lowermost stage is carried out from the stacking area 10 and cut out when the cylinder 47 of the second carriage moving means 42 is operated. At this time, the wheel 5 on the rear side of the carriage 2 moves on the second guide rail 26 after rotating about 180 degrees on the rotating body 31 for changing direction and changing its direction to the rear. Alternatively, the rear wheel 5 may be moved on the second guide rail 26 without changing the direction on the rotating body 31 for changing the direction and facing forward. By repeating such operations, the stacked carts 2 are cut out one by one.

  And according to such a stacking apparatus 1, the wheel support body 4 of the trolley | bogie 2 in which direction of the wheel 5 was changed in the rotating body 31 for direction change rotates centering on the axis | shaft 6 with respect to the trolley | bogie main body 3. FIG. Since the regulation body 73 regulates this, it is possible to appropriately stack a plurality of carriages 2 in a state in which the wheels 5 of one carriage 2 are placed on the carriage body 3 of another carriage 2. The carriage 2 can be stacked in a space efficient and stable manner in the stacking area 10 in the machine casing 11.

  Further, the restricting body 73 moves directly to the wheel 5 by moving to the restricting position when the support 72 is located at the supporting position, thereby restricting the rotation of the wheel supporting body 4 around the shaft 6 with respect to the cart body 3. Therefore, the regulation body 73 can appropriately regulate the rotation of the wheel support body 4 with respect to the carriage body 3.

  Furthermore, the direction of the wheel 5 of the carriage 2 can be appropriately changed by rotating the rotating plate part 34 in a state where the wheel 5 is positioned between the wheel guide plate parts 35 forming a pair of the rotating members 31 for changing the direction.

  In the above embodiment, the configuration in which the regulating body 73 abuts on the wheel 5 to regulate the rotation of the wheel support body 4 with respect to the cart body 3 has been described. For example, the regulating body 73 abuts on the wheel support body 4. The structure which controls rotation with respect to the trolley | bogie main body 3 of the wheel support body 4 may be sufficient.

  Further, the configuration in which the regulating body 73 is provided on the support body 72 via the regulating body cylinder 86 is not limited, and a configuration in which the regulating body 73 is provided on the elevating body 71 may be used.

It is a top view of the stacking apparatus which concerns on one embodiment of this invention. It is a side view of the same stacking apparatus. FIG. 3 is a view taken in the direction of arrow III in FIG. 1. FIG. 4 is a view taken along arrow IV in FIG. 2. FIG. 3 is a view taken in the direction of arrow V in FIG. 2. FIG. 6 is a view taken in the direction of arrow VI in FIG. It is a top view of the rotary body for direction change of the same stacking apparatus. It is a side view of the rotary body for upward change same as the above. It is a side view of the 1st trolley | bogie moving means of the same stacking apparatus. It is a side view of the anti-back stopper of the same stacking apparatus. It is a principal part top view of the same stacking apparatus. It is a principal part side view of the same stacking apparatus. It is a side view of the raising / lowering body drive means of the same stacking apparatus. It is a perspective view of the cart stacked by the same stacking apparatus. It is explanatory drawing of stacking operation | movement. It is explanatory drawing of cut-out operation | movement.

Explanation of symbols

1 stacking device 2 bogie 3 bogie body 4 wheel support 5 wheel 6 axis
31 Rotating body for changing direction
34 Rotating plate
35 Wheel guide plate
71 Lifting body
72 Support
73 Regulatory bodies

Claims (4)

A plurality of carts having a cart body, a wheel support body rotatably provided about the vertical axis on the cart body, and a wheel rotatably supported by the wheel support body. A stacking device that stacks the wheels in a state of being placed on the bogie body of another bogie,
A rotating body for changing the direction of rotating the wheel support relative to the main body of the carriage by rotating in a state where the wheel is placed, and changing the direction of the wheel;
A lifting body that can be lifted and lowered;
A support body that can be moved up and down together with the lift body and can move to a support position and a non-support position, and supports the carriage body in a state of being located at the support position;
It can be moved up and down together with the lifting body and can be moved to the restriction position and the non-restriction position, and the wheel support body of the carriage after the change of the wheel direction is restricted from rotating with respect to the carriage body in the state of being located at the restriction position. A stacking device comprising: 2. The stacking according to claim 1, wherein when the support body is located at the support position, the restriction body abuts on the wheel by moving to the restriction position and restricts rotation of the wheel support body with respect to the carriage body. apparatus. The carriage has at least four wheels on the front, rear, left and right.
The direction changing rotator changes the direction of the two rear wheels so as to be opposite to the direction of the two front wheels,
The stacking apparatus according to claim 2, wherein the restricting body abuts on each of the wheels to restrict the rotation of the wheel support relative to the cart body. The rotating body for changing the direction is
A rotating plate that rotates with the wheels placed on the top surface;
The stacking apparatus according to any one of claims 1 to 3, further comprising a pair of wheel guide plates that are erected on an upper surface of the rotating plate portion and that are spaced apart from each other.

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