JP6074151B2 - Pallet transport device - Google Patents

Description

  The present invention relates to a pallet transport device used for, for example, a parking facility that stores and transports an automobile and a warehouse facility that stores and transports goods.

  For example, Patent Document 1 and Patent Document 2 are known as conventional techniques for allowing a pallet used for the above purpose to freely travel in both a vertical direction and a horizontal direction.

Japanese Patent Publication No. 7-29681 Japanese Patent No. 4091786

  By the way, the thing of patent document 1 provides the short rail of one direction rotatably in each crossing part of the cross-shaped rail provided in the back surface of a pallet, and provided on the floor surface of the position corresponding to each of this short rail. By changing the direction of the wheel in the vertical or horizontal direction, the short rail is changed in the vertical or horizontal direction. On the other hand, the short rail must be pivotally supported.

  In Patent Document 2, a pair of vertical rails and a tray for moving a tray in a vertical direction by rolling each tray roller is supported by pivotally supporting rollers at substantially four corners on the lower surface side of the tray. A pair of horizontal rails for moving in the horizontal direction are provided, a linear horizontal rotating rail is pivotally supported at a position different from each roller on the lower surface of the tray, and the rotating rail is changed by the rotating rail direction changing device. Therefore, it is necessary to install rollers in the vertical and horizontal directions at the four corners of the lower surface of the tray and a rotating rail at one central portion of the lower surface of the tray.

  According to the above configuration, since a plurality of movable accessories are attached to the bottom surface of the pallet or tray, the structure becomes complicated, making it difficult to maintain and inspect the accessories. The work which removes from a parking shelf or a storage shelf is needed.

  Further, in order to smoothly change the direction, it is necessary to make the rotation center of the roller and the pallet side groove or rail coincide with each other to some extent. Therefore, there is a problem that high pallet stop position accuracy is required during operation.

  Therefore, the present invention simplifies the structure by eliminating the movable part on the bottom surface of the pallet, improves the overall cost reduction and maintainability, and eliminates the need for increasing the stop position accuracy during operation. It is to provide.

In order to solve the above-described problems, the present invention provides a conveying device in which a plurality of pallets for conveyance can be moved in a vertical direction and a horizontal direction on a floor surface. A rail is provided, and a swivel seat with a vertical swivel support shaft is provided at a position on the floor surface corresponding to the crossing portion of the rail, and an inclined support shaft with an upward high end facing the crossing portion of the rail on each swivel seat. And a roller having a part of the outer periphery fitted into the rail at the high end of the inclined support shaft, a driving means for driving the inclined support shaft, and a direction changing action means. Linking means for reversing the swivel seat by 90 degrees is provided, the swivel shaft center of the swivel seat is shifted from the center of the rail width of the pallet, and the swivel directions of the rollers face each other in the vertical and horizontal directions. Roller in the opposite direction To adopt a configuration in which to so that.

  As described above, according to the pallet transport apparatus of the present invention, since there is no pallet transport movable part on the lower surface of the pallet, the structure is extremely simplified, and the overall cost reduction, maintenance, and inspection work are facilitated. Maintainability can be improved.

Since the inclined support shaft of the pallet transport roller is inclined, it can be used both for load support and for horizontal guidance, and as a drive means at the lower lower end of the support shaft as the support shaft is inclined. A motor can be connected to eliminate interference between the motor and the lower surface of the pallet, and a small-diameter roller can be used.
As a result, the pallet can be transported stably.

  Also, since the center of the pivot axis is deviated from the center of the rail width of the pallet, when the roller passes the intersection of the rail (inner), there is a margin in the gap between the roller and the side of the rail, and the roller The turning resistance when turning while rotating is reduced, and smooth turning is possible.

  Further, since the turning direction of each (a pair of left and right) rollers is a symmetric direction, there is no side slip when turning the pallet, and stable and smooth conversion can be achieved.

It is a bottom view of a pallet. It is a partially notched top view which shows the conveying apparatus of a pallet. It is an enlarged plan view which shows turning of a roller. It is the top view which turned the roller. It is a vertical front view which shows the relationship between a roller and a rail. It is a partially cutaway enlarged front view showing a driving side roller. It is an enlarged bottom view which shows the relationship between a driven roller and a guide. It is an enlarged bottom view which shows the relationship between a roller and a guide.

Embodiments of the present invention will be described with reference to the accompanying drawings.
A in FIG. 1 to FIG. 8 showing the first embodiment of the present invention is a pallet.

  The pallet A is used for, for example, a parking facility for storing or transporting a car and a warehouse facility for storing or transporting an article, and the back surface (lower side) of the pallet A is used. A groove-shaped rail a is provided in a cross-beam shape.

  In the illustrated case, the groove shape of the rail a is widened so that both sides parallel to each other downward (Mt. Fuji shape or trapezoidal shape). Although smooth fitting can be ensured without the roller 5 being caught by the open lower edge, it is not necessarily limited and may be a U-shape.

  In addition, a swivel seat 2 having a vertical swivel support shaft is provided at a position corresponding to each crossing portion of the rail a on the floor surface 1 serving as a conveyance path for the pallet A.

  In addition, the swivel seat 2 is provided with an inclined support shaft 3 supported by bearings 4 with the upward high end facing the intersection of the rail a, and the rail a (groove) is provided at the high end of each inclined support shaft 3. ) Is provided with a roller 5 into which a part of the peripheral surface is fitted.

  A motor 6 as a driving means is connected to the lower end of the inclined support shaft 3, and the roller 5 is driven by the operation of the motor 6.

  In the case shown in the drawing, the motor 6 is provided so as to drive only one of the one side row in parallel and the other side row (to be driven and driven), but is not limited thereto.

  Further, each swivel seat 2 is reversibly turned 90 degrees via the interlocking means D by the direction changing action means C.

  In the case shown in the drawing, the action means C includes a rotating shaft 8 that rotates reversibly by the operation of the motor 7 and a rotating plate 9 that is fixed at the middle to the rotating shaft 8. In the case shown in the figure, a protruding piece 10 whose ends are fixed to both swivel seats 2 in one longitudinal row, a plate piece 11 whose intermediate portion is fixed to both swivel seats 2 in the other vertical row, and a vertical direction A first rod 13 in which both ends are connected to each other through a pin 12 on both ends of the protruding piece 10 and the plate piece 11, a protruding end of the rotating plate 9, and a remaining one side protruding end of the plate piece 11 are connected to the pin 14. And the second rod 15 having both ends connected to each other, and the plate 7 is rotated by the motor 7, and the projection 10 is rotated via the first rod 13 as the plate 11 rotates. The seat 2 is turned 90 degrees, and the roller 5 of the turning seat 2 is changed between a vertical feed and a horizontal feed. While it tuned to so that, without being limited to the above method, may be pivoted to employ other methods to feed in the vertical direction and the horizontal direction of the rollers 5.

  Further, since the turning directions of the left and right rollers 5 are made to turn in the symmetric direction instead of the same direction, as shown in FIG. 4, the turning direction of each turning seat 2 becomes the arrow direction (A) in FIG. Since the roller 5 pivots in a symmetric direction, for example, there is no need to send out a side slip of the pallet A when turning in the direction from the vertical direction to the horizontal direction, and the conveyance direction of the pallet A can be changed stably.

When configured as described above, the pallet A can be conveyed in the vertical direction by setting the rotation direction of the roller 5 to the vertical direction as shown in FIG. 4, and the rotation direction of the roller 5 can be changed as shown in FIG. The pallet A can be transported in the horizontal direction by setting it in the horizontal direction, and when each roller 5 reaches each crossing portion of the rail a, each swivel seat 2 is turned 90 degrees via the interlocking means D by the action means C. Let

Then, the roller 5 is turned 90 degrees together with the swivel seat 2, and the rotation direction of the roller 5 is changed from the vertical direction to the horizontal direction or from the horizontal direction to the vertical direction, and the conveying direction of the pallet A is changed.
In the figure, 16 is a support plate for attaching the bearing 4 and the motor 6 to the swivel seat 2.

  In the embodiment of the present invention, as shown in FIG. 7, the turning center of the swivel seat 2 is installed so as to be shifted from the width center of the rail a of the pallet A.

  When configured as described above, when the roller 5 passes through the intersection of the rail a as shown in FIG. 8, a marginal gap X is created in the gap between the roller 5 and the side surface of the rail a, and the roller 5 rotates while rotating. The turning resistance at the time of movement (indicated by the movement locus Y of the roller 5) is reduced, and smooth turning can be ensured.

A Pallet a Rail C Action means D Interlocking means 1 Floor surface 2 Rotating seat 3 Inclined support shaft 4 Bearing 5 Roller 6 Motor 7 Motor 8 Rotating shaft 9 Rotating plate 10 Protruding piece 11 Plate piece 12, 14 Pin 13 First rod 15 Second rod

Claims (1)

In a transfer device in which a plurality of transfer pallets can be moved in the vertical and horizontal directions on the floor surface, a groove-shaped rail is provided on the back surface of each pallet, and a floor corresponding to the intersection of the rails. A swivel seat with a vertical swivel support shaft is provided at a position on the surface, and each swivel seat supports an inclined support shaft with an upward high-point end facing the intersection of the rails, and the high-end end of the tilt support shaft. Provided with a roller whose outer peripheral part fits into the rail, a drive means for driving the inclined support shaft, and an interlocking means for reversibly turning each swivel seat by 90 degrees by a direction changing action means, The pivot axis center of the swivel seat is shifted from the center of the rail width of the pallet, and the rollers in the positions where the respective swirling directions of the rollers are opposed in the vertical direction and the horizontal direction are swung in the reverse direction. Features of pallet Feeder.

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