JP2006182564A - Method for stacking work on pallet and its device as well as shelf device and skid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for placing works directly on a pallet, and to provide its device. <P>SOLUTION: The method for placing on the pallet P the works W stacked on a framed skid comprises a step of placing the pallet P on a pallet supporting frame body 7 which can supports the pallet P, a step of placing on the pallet P the skid on which the works are stacked, a step of lifting the works W on the skid using a plurality of front, rear, right and left work lifting parts 17 which are provided for a work lifting device 13 arranged on the lower side of the pallet supporting frame body 7 and which are movable up and down relative to the pallet supporting frame body 7, a step of removing the slid from the pallet P when the works W are being lifted up by the plurality of work lifting parts 17, and a step of moving down the work lifting parts 17 relative to the pallet P and placing the works W directly on the pallet P. Its device is also provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a placing method and apparatus for placing a plate-like workpiece placed on a skid directly (without a skid) on a pallet, and a shelf apparatus and a placing method provided with the above apparatus. It relates to the skid used.

Conventionally, when supplying plate-like workpieces to various plate material processing machines such as turret punch presses, laser processing machines, press brakes, etc., the pallet on which the workpieces are placed is taken out of the shelf device and placed on the pallet. The workpiece is supplied to the plate material processing machine. The shelf device includes a pallet support frame (elevator) that can be moved up and down to a height position corresponding to each shelf on the front side of a shelf frame having a plurality of shelves that can enter and exit the pallet. A pallet is put in and out of each shelf by a traverser that is movably provided (see, for example, Patent Document 1).
JP-A-5-43015

  Conventionally, when a plate-like workpiece is placed on a pallet and the pallet is accommodated in a shelf in a shelf device, the workpiece is placed on a skid in which square materials and the like are combined in a cross beam shape so that the workpiece can be easily conveyed by a forklift. In the mounted state, each skid is mounted on the pallet. Accordingly, the stacking height of the workpieces on the pallet is a size obtained by adding the thickness of the number of stacked workpieces to the vertical dimension of the skid, and when the vertical dimension of the shelf is small, the storage rate of the workpiece with respect to the shelf is reduced. There is. That is, there is a problem that the skid is an obstacle in order to suppress the height dimension of the shelf device and improve the work storage rate.

  Therefore, the work is directly placed on the pallet. However, in order to directly load a work on the pallet, the work must be manually placed on the pallet from the skid, which requires time and labor.

  The present invention has been made in view of the conventional problems as described above, and is a method of placing a work loaded on a frame-shaped skid on a pallet, and the pallet is mounted on a pallet support frame capable of supporting the pallet. And (b) a step of placing a skid loaded with a workpiece on the pallet, and a plurality of workpieces provided in a workpiece lifting device disposed below the pallet support frame (C) a step of lifting the workpiece on the skid by the workpiece holding portion, and a state in which the workpiece is lifted by the workpiece lifting portion. (D) removing the skid from the pallet, and lowering the work holding upper part relative to the pallet support frame to place the work on the pallet. It consists of the steps of contacting placed to step (e) is characterized in.

  Further, a method of placing a workpiece loaded on a frame-shaped skid on a pallet, the step of placing the pallet on a pallet support frame that can support the pallet (a), and on the pallet, A step (b) of placing a skid loaded with a workpiece, and a plurality of workpiece holding upper portions provided in a workpiece lifting device disposed below the pallet support frame body are moved up and down relative to the pallet support frame body. (C) the step of lifting the workpiece on the skid by a plurality of workpiece holding upper and lower, left and right, and when the workpiece is lifted by the plurality of workpiece holding upper portions, In order to remove the skid, the skid is moved in one direction in the front-rear direction or the left-right direction (d), and the skid is moved by moving the skid in the one direction. (E) the process of lowering only the workpiece holding upper part in the state of harm and supporting the workpiece by the other plural workpiece holding upper parts, and the skid passed through the position of the relatively lower workpiece holding upper part. Thereafter, the lowered workpiece holding upper part is again raised relatively to support the workpiece (f), and the steps (e) and (f) are performed at least once to remove the skid from the pallet ( g) and a step (h) in which the work holding portion is lowered relative to the pallet and the work is directly placed on the pallet.

  A work loading device for directly loading a work loaded on a frame-shaped skid onto a pallet, the pallet support frame capable of supporting the pallet, and a pallet supported on the pallet support frame. In order to lift a workpiece loaded on a frame-shaped skid, a workpiece lifting device disposed below the pallet support portion of the pallet support frame, and a workpiece lifting device provided in the workpiece lifting device And a plurality of workpiece holding portions that can move up and down relatively.

  Further, in the work placing apparatus, an appropriate number of work holding parts among the plurality of work holding parts can be individually moved up and down.

  In the workpiece mounting device, the workpiece support position when the workpiece is lifted by a plurality of workpiece lifting portions in the workpiece lifting device can be changed in accordance with the size of the workpiece. Is.

  The pallet support frame is provided with a plurality of pallets into and out of the pallet, and a pallet support frame that can be moved up and down to a position corresponding to each of the shelf positions. A shelf apparatus movably provided with a traverser for entering and exiting a pallet, and placed on a pallet supported by the pallet support frame below the vertical movement region in which the pallet support frame moves up and down A workpiece lifting device for lifting the workpiece on the skid, and a plurality of workpiece lifting portions provided in the workpiece lifting device so as to be movable up and down relative to the pallet support frame. It is characterized by.

  Further, in the shelf apparatus, an appropriate number of workpiece holding portions among the plurality of workpiece holding portions can be individually moved up and down.

  Further, in the shelf apparatus, the work holding upper portion of the work lifting device is configured to be capable of changing the position in accordance with the dimensions of the work.

  Further, in the shelf apparatus, shelves capable of entering and exiting the pallet are provided in a plurality of stages in the vertical direction and in a plurality of rows in the left and right directions, and the pallet support frame is provided in a movable frame movable in the left and right direction so as to be movable up and down The workpiece lifting device is provided in the moving frame at a position below the pallet support frame.

  A skid used in a method for loading a workpiece onto a pallet, wherein one end side of a plurality of stringers provided in parallel to support the workpiece is provided integrally with a transverse beam member, and the stringer member The other end side is open.

  A skid used for a work loading method on a pallet, wherein one end side of a plurality of cross-girder members provided in parallel to support the work is provided integrally with the cross-girder member, and the cross-girder member The other end side is open.

  Further, in the skid, the stringer member is provided with a hole or a notch part through which a fork in a forklift can freely enter and exit.

  According to the present invention, the skid placed on the pallet can be easily taken out from between the pallet and the workpiece loaded on the skid, and the workpiece can be easily loaded directly on the pallet. Thus, the conventional problems as described above can be solved.

  Referring to FIG. 1, a shelf apparatus 1 according to an embodiment of the present invention is a shelf 3 in which a pallet P having a frame structure on which plate-like workpieces W are loaded can be put in and out as in a conventional general shelf apparatus. A shelf frame 5 having a plurality of stages is provided. On the front side (left side in FIG. 1) of the shelf frame 5, a skid (not shown in FIG. 1) in which a plate-like workpiece W is loaded is placed on the pallet P by a loading device such as a forklift. At this time, there is provided a workpiece placing device capable of removing the skid from between the pallet P and the workpiece W and placing the workpiece W directly on the pallet P.

  More specifically, on the front side of the shelf frame 5, the pallet support frame (elevator) 7 is movable up and down (movable in the Z-axis direction) so as to move up and down to a height position corresponding to each shelf 3. And an elevating drive device 9 for moving the pallet support frame 7 up and down. The pallet support frame 7 is provided with a traverser 11 for moving the pallet P in and out of each shelf 3 so as to be movable back and forth (movable in the Y-axis direction).

  The configuration in which the pallet support frame 7 provided with the shelf frame 5 and the traverser 11 so as to be reciprocally movable is known as a general automatic warehouse, and the pallet P used in the automatic warehouse is also known. Since the structure is also known, a detailed description and operation of the structure of the shelf frame 5, the pallet support frame 7, the pallet P, etc. will be omitted.

  A work W on a skid (not shown in FIG. 1) placed on the pallet P on the pallet support frame 7 is placed below the vertical movement region where the pallet support frame 7 moves up and down. A workpiece lifting device 13 for relatively lifting is arranged. As shown in FIGS. 2 and 3, the workpiece lifting device 13 includes a plurality of base members 15 that are long in the left-right direction (X-axis direction). An upper part (work support part) 17 for lifting the work is provided.

  The work holding upper part 17 has a columnar configuration standing on the base member 15, and is provided so as to be movable up and down relatively with respect to the pallet support frame 7. Is lifted so as to relatively push up the workpiece W loaded on the frame-shaped skid 19 of the cross beam structure on the pallet P from the lower side. .

  As shown in FIGS. 2 and 3, the skid 19 has a plurality of girder members (longitudinal or lateral girder members) 19A provided long in parallel in the Y-axis direction and a plurality of girder members (horizontal in the X-axis direction). Alternatively, a vertical girder member) 19B is placed in parallel, and the girder members 19A and 19B are integrated to form a frame-like frame. The skid 19 having this configuration has a configuration in which the girder members 19A and 19B are overlapped, so that the height dimension is relatively large.

  The work holding upper portion 17 is erected on the base member 15 by engaging engagement pins 21 provided at a lower end portion with engagement holes 23 provided at a plurality of locations of the base member 15. . Therefore, by selectively engaging the engaging pins 21 of the workpiece holding upper portion 17 with the plurality of engaging holes 23 provided in the base member 15, the workpiece holding upper portion 17 is made to have the dimensions of the workpiece W. The position can be changed to the corresponding position.

  Further, the workpiece lifting device 13 includes a plurality of workpiece lifting portions (work supporting portions) 25A and 25B for lifting the workpiece W in the vicinity of the substantially central portion of the pallet support frame 7 in the front-rear direction (FIG. 1, FIG. 4 are arranged adjacent to each other in the left-right direction and in FIG. 2 in the up-down direction, that is, the Y-axis direction. The work holding upper portions 25A and 25B are configured to be individually movable up and down by the operation of the lifting actuator.

  Since the configuration for moving the front and rear workpiece holding upper portions 25A and 25B up and down is the same, only one configuration will be described. More specifically, a base plate 27 (see FIG. 5) is disposed at a position below the pallet support frame body 7 and substantially at the center of the pallet support frame body 7. Is provided with a pair of left and right toggle link mechanisms 29 that pivotally connect the lower link 29A and the upper link 29B. The workpiece holding upper portion 25A (25B) is erected on an elevating link 31 whose left and right sides are pivotally supported on the upper link 29B in the toggle link mechanism 29.

  Further, a fluid pressure cylinder 33 as an example of an elevating actuator is provided between the left and right toggle link mechanisms 29 in order to move the elevating link 31 and the workpiece holding upper portions 25A and 25B up and down via the toggle link mechanism 29. Is interposed. In other words, the cylinder side of the fluid pressure cylinder 33 is pivotally attached to one toggle link mechanism 29, and the tip of the piston rod that extends and contracts in the fluid pressure cylinder 33 is pivotally attached to the other toggle link mechanism 29. It is.

  Therefore, by operating the front and rear fluid pressure cylinders 33, the front and rear work holding upper portions 25A and 25B can be moved up and down individually, and the vicinity of the center of the work W can be lifted at the substantially center of the pallet P. It can be done. The configuration for moving the workpiece holding portions 25A and 25B up and down is not limited to the configuration described above, and each workpiece holding portion can be moved up and down directly by the operation of an appropriate actuator such as a fluid pressure cylinder. It is also possible to have a moving configuration. That is, various configurations can be adopted as the configuration for moving the workpiece holding upper portions 25A and 25B up and down.

  Further, the base plate 27 can be adjusted in position, for example, the base plate 27 can be adjusted on the slider whose position can be adjusted in the left-right direction and / or the front-rear direction. Even when the workpiece W is placed on one side of the upper side, the center position of the workpiece W can be easily accommodated.

  In the configuration as described above, the workpiece holding portion 17 is arranged so that the left and right workpiece holding portions 17 are located slightly outside the skid 19 in the left and right direction in accordance with the size in the left and right direction of the skid 19 on which the workpiece W is loaded. Adjust the position. In the present embodiment, since the right workpiece holding portion 17 in FIG. 2 is disposed at the reference position, the position of the workpiece holding portion 17 located on the left side in FIG. In other words, the position is adjusted according to the size of the workpiece W.

  Next, the pallet support frame 7 is lowered to a transfer height position at which the work W can be placed on the pallet support frame 7 by a forklift or the like above the work lifting device 13. As described above, when the pallet support frame 7 is stopped at the transfer height position, the skid 19 loaded with the workpiece W is transferred to the position of the pallet support frame 7 by a transfer device such as a forklift. Then, the skid 19 is placed on the pallet P previously placed on the pallet support frame 7 (see FIG. 6A).

  Thereafter, by lowering the pallet support frame 7, the work lifting upper portion 17 in the work lifting device 13 and the work lifting upper portions 25 </ b> A and 25 </ b> B in a previously raised state are lifted relative to the pallet support frame 7. The workpiece W on the skid 19 is supported by the workpiece holding portions 17, 25A and 25B, and the workpiece W is relatively lifted from the skid 19 (see FIG. 6B). At this time, the large workpiece W is supported by a plurality of workpiece holding upper portions 17 located on both the left and right sides of the skid 19, and the substantially central portion of the workpiece W is supported by the workpiece holding upper portions 25A and 25B. It is supported without causing large deflection.

  As described above, the skid 19 is removed from the pallet P when the workpiece W is supported by the plurality of workpiece holding upper portions 17, 25 </ b> A, 25 </ b> B in the workpiece lifting device 13. At this time, if the skid 19 is moved to the front side (left side in FIG. 7) in order to remove the skid 19, the work holding upper portions 25A and 25B located inside the skid 19 interfere with the skid 19. The fluid pressure cylinder 33 is actuated to lower the rear workpiece holding portion 25A. After the skid 19 passes forward on the lower workpiece holding portion 25A in the lowered state, the workpiece holding portion 25A is raised again to support the workpiece W (FIGS. 7A and 7B). 8 (A)).

  After that, the front work holding portion 25B is lowered, and the skid 19 passes forwardly on the lowered work holding portion 25B so that the skid 19 is removed forwardly between the pallet P and the work W. It will be. After the skid 19 is removed from between the workpiece W and the pallet P, the workpiece W is supported by the front workpiece holding upper portion 25B, and the pallet support frame body 7 is raised to raise the workpiece holding portions 17, 25A, 25B. The workpiece W supported by the workpiece holding upper portions 17, 25 </ b> A, 25 </ b> B is directly placed on the pallet P on the pallet support frame 7. (See FIGS. 9 and 10).

  As described above, after the workpiece W is directly placed on the pallet P, the pallet support frame 7 is moved up and down to perform positioning corresponding to the shelf 3 at a desired height position in the shelf frame 5. The pallet P loaded into the shelf 3 by the traverser 11 provided in the pallet support frame 7 is stored in the pallet P on which the workpiece W is directly placed.

  As can be understood from the above description, according to the present embodiment, the workpiece W loaded on the frame-shaped skid 19 can be easily placed on the pallet P by removing the skid 19. Since the pallet P on which the workpiece W is directly placed is stored in the shelf 3, the workpiece W is loaded on the pallet P by an extra height corresponding to the vertical dimension of the skid 19. As a result, the work storage rate of the shelf 3 can be improved.

  By the way, in the above description, the case where the dimension of the workpiece W is large and the vicinity of the center portion of the workpiece W is supported by the workpiece holding upper portions 25A and 25B has been described. However, when the size of the workpiece W is small and there is no fear of large deflection, the workpiece W is supported only by the plurality of workpiece holding portions 17 on both the left and right sides, and the workpiece holding portions 25A and 25B near the center portion. Supporting the workpiece W can be omitted. Therefore, in this case, the skid 19 can be removed more easily.

  FIG. 11 shows a second embodiment. The shelf frame 45 in the shelf device 41 according to the second embodiment includes a plurality of shelves 43 in the vertical direction (Z-axis direction) and in multiple rows in the left-right direction (direction perpendicular to the paper surface, that is, the X-axis direction). In this configuration, a moving frame 49 that is guided by a rail 47 that is long in the left-right direction and is movable in the left-right direction is provided on the front side (right side in FIG. 11) of the shelf frame 45. The moving frame 49 is provided with a pallet support frame (elevator) 51 having substantially the same configuration as the pallet support frame 7 described above so as to be movable up and down. The pallet support frame 51 includes the traverser. A traverser 53 having substantially the same structure as that of No. 11 is provided to be movable back and forth.

  In the shelf apparatus, as in the above-described configuration, the moving frame 49 is movable in the left-right direction on the front side of the shelf frame 45 having a plurality of shelves 43 and a plurality of rows, and the traverser 53 is movable back and forth. Since the structure in which the pallet support frame 51 is provided on the moving frame 49 so as to be movable up and down is well known as an automatic warehouse or the like, the detailed description of the shelf frame 45 and the moving frame 49 is omitted. To do.

  In the second embodiment, when the skid 19 loaded with the work W is placed on the pallet P, the moving frame 49 is used to remove the skid 19 from between the work W and the pallet P. Is provided with a workpiece lifting device 55. More specifically, in the present embodiment, a plurality of lifting actuators 57 such as fluid pressure cylinders are provided in the base member 49B of the moving frame 49 at a position below the region in which the pallet support frame 51 moves up and down. It is a configuration.

  According to the above configuration, after the skid 19 loaded with the work W is placed on the pallet P on the pallet support frame 51 in the lowered state, the lift actuator 57 is operated to move the lift actuator 57 to the lift actuator 57. By moving a vertical operation rod 59 such as a piston rod as an example of a workpiece holding portion (work supporting portion) that can be moved up and down upward, the workpiece holding portions 17 and 25A in the workpiece lifting device 13 are moved upward. Similarly to 25B, the workpiece W can be lifted relatively, and the skid 19 can be removed from between the workpiece W and the pallet P.

  Therefore, also in the second embodiment, the same effect as that of the above-described embodiment can be obtained. It is desirable that the lifting actuators 57 are provided so that their positions can be adjusted in the front-rear and left-right directions.

  By the way, in the said 1st, 2nd embodiment, after mounting the skid 19 which loaded the workpiece | work W on the pallet P on the pallet support frame body which can move up and down on the front side of a shelf frame, it is a workpiece lifting apparatus. A case has been described in which the workpiece W is lifted up, and the skid 19 is removed in this state, and then the pallet P is stored in the shelf of the shelf frame by the traverser provided on the pallet support frame so as to be movable back and forth.

  However, a pallet support frame having a similar structure to the pallet support frame 7 is provided at a position away from the shelf frames 5 and 45, and a work having a similar structure to the work lifting device 13 is provided below the pallet support frame. A work placement device having a lifting device is provided. Then, after the workpiece W is directly placed on the pallet P by performing the same operation as described above in the workpiece placement device, the pallet P on which the workpiece W is placed is supported by the pallet by an appropriate transport device such as a forklift. It is also possible to adopt a configuration in which the frames 7 and 51 are carried in.

  That is, a work placing device for placing the work W directly on the pallet P at a close position such as the front side of the pallet support frames 7 and 51 is provided, and the skid 19 is placed at the position of the work placing device. The pallet P can be transferred onto the pallet support frames 7 and 51 after the workpiece W is directly placed on the pallet P. As already understood, in order to improve the storage rate of the work W with respect to the shelf, the timing for removing the skid 19 loaded with the work W in order to place the work W directly on the pallet P is Even when a work is placed on a pallet on a pallet support frame that can move up and down on the front side of the frame, or before the pallet is placed on the pallet support frame.

  FIG. 12 shows a third embodiment, and the same reference numerals are given to components having the same functions as the components of the above-described embodiment, and redundant description is omitted.

  In the third embodiment, a plurality of workpiece holding upper portions (work supporting portions) 17 are erected on a plurality of base members 15, and the workpiece holding upper portions 25A and 25B that are individually movable up and down are omitted. It is. The configuration of the skid 19 is such that one end side of a plurality of string members 19A provided in parallel to support the workpiece W is integrally provided on the cross beam member 19B on the same plane, and the string member 19A is provided. The other end side is open.

  Therefore, the skid 19 does not overlap the stringer member 19A and the crossgirder member 19B, and the overall configuration can be reduced. When the workpiece W is lifted by the plurality of workpiece lifting portions 17 in the workpiece lifting device 13, the skid 19 can be easily pulled out from the lower side of the workpiece W in the Y-axis direction (forward direction). is there.

  By the way, in the skid 19, the other end part of the stringer member 19A is open, and the other end part of each stringer member 19A is a free end. Therefore, it is also conceivable that the same girder member as the cross girder member 19B is detachably attached to the other end of the vertical girder member 19A. In this case, when the skid 19 is pulled out from the lower side of the workpiece W, the beam member attached to the other end portion of the stringer member 19A is removed, and the other end portion of the stringer member 19A is set as a free end as described above. Thus, the skid 19 can be easily pulled out from the lower side of the workpiece W.

  By the way, when the skid 19 on which the workpiece W is placed is to be loaded and placed on the pallet P placed on the pallet support frame 7 by a forklift, the pallet support frame 7 is lowered in advance to When the work support portion 17 protrudes relatively upward from the pallet P, the fork of the forklift that supports the skid 19 is lowered to support the work W on the skid 19 with a plurality of work pieces. It can be supported by the part 17. That is, when the pallet support frame 7 is lowered in advance and the plurality of workpiece support portions 17 are relatively raised with respect to the pallet P, the fork and the pallet in the forklift do not interfere with each other on the skid 19. Drawing can be performed.

  However, when the skid 19 on which the work W is placed is placed on the pallet P placed on the pallet support frame 7, the fork of the forklift that supports the skid 19 and the pallet P interfere with each other. become. Therefore, in the skid 19, the distance between the pair of string members 19A is set equal to the distance between the forks in the forklift, and the holes 19H (see FIG. It is desirable that a notch is provided and the skid 19 is supported by inserting a fork into the hole 19H.

  With the above-described configuration, the skid 19 can be placed on the pallet P without causing interference between the fork and the pallet P in the forklift.

  FIG. 13 shows a configuration of a skid 19 in which a plurality of cross-girder members 19B are provided in parallel, and one end side of each cross-girder member 19B is provided integrally with the vertical girder member 19A. That is, in this configuration, the skid 19 can be easily pulled out in the left-right direction (X-axis direction), and the same effect as in the above-described embodiment can be easily achieved.

  Further, by providing a hole 19H or a notch through the plurality of cross beam members 19B and inserting the fork into the hole to support the skid 19, the fork and pallet P in the forklift can be The skid 19 can be placed on the pallet P without causing interference.

  In FIG. 14, the work W and a plurality of stringers 19 </ b> A long in the Y-axis direction are integrally bound by a binding tool such as a belt or a band, and the binding by the binding tool is performed on the pallet P. The case where it cancels | releases is shown. In this case, when the workpiece W is supported by the plurality of workpiece support portions 17, the drawing of each stringer member 19A is released.

  FIG. 15 shows a modification of the form shown in FIG. 14, in which the work W and a plurality of cross beam members 19B are bound by a binding tool such as a belt or a band, and the above binding is released on the pallet P. This shows the case. In this case, each cross beam member 19B is pulled out in the X-axis direction.

It is side explanatory drawing which showed schematically and conceptually the shelf apparatus which concerns on 1st Embodiment of this invention. It is a plane explanatory view showing roughly the positional relationship of the pallet support frame and work lifting device concerning a 1st embodiment of the present invention. It is front explanatory drawing which shows roughly the positional relationship of the pallet support frame which concerns on 1st Embodiment of this invention, and a workpiece lifting apparatus. It is right side explanatory drawing which shows roughly the positional relationship of the pallet support frame which concerns on 1st Embodiment of this invention, and a workpiece lifting apparatus. It is front explanatory drawing of a workpiece holding upper part. It is operation | movement explanatory drawing when lifting a workpiece | work with a workpiece | work lifting apparatus and removing the skid which has mounted the workpiece | work. It is operation | movement explanatory drawing when lifting a workpiece | work with a workpiece | work lifting apparatus and removing the skid which has mounted the workpiece | work. It is operation | movement explanatory drawing when lifting a workpiece | work with a workpiece | work lifting apparatus and removing the skid which has mounted the workpiece | work. It is operation | movement explanatory drawing when lifting a workpiece | work with a workpiece | work lifting apparatus and removing the skid which has mounted the workpiece | work. It is operation | movement explanatory drawing when lifting a workpiece | work with a workpiece | work lifting apparatus and removing the skid which has mounted the workpiece | work. It is side explanatory drawing which showed schematically and conceptually the shelf apparatus which concerns on 2nd Embodiment. It is side explanatory drawing which showed schematically and conceptually the shelf apparatus which concerns on 3rd Embodiment. It is side explanatory drawing which showed schematically and conceptually the shelf apparatus which concerns on 4th Embodiment. It is side explanatory drawing which showed schematically and conceptually the shelf apparatus which concerns on 5th Embodiment. It is side explanatory drawing which showed schematically and conceptually the shelf apparatus which concerns on 6th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,41 Shelf device 3,43 Shelf 5,45 Shelf frame 7,51 Pallet support frame 11 Traverser 13,55 Work lifting device 17,25A, 25B Work holding upper part 19 Skid 29 Toggle link mechanism 33 Fluid pressure cylinder 49 Moving frame 57 Actuator for lifting 59

Claims (12)

A method of placing a workpiece loaded on a frame-shaped skid on a pallet,
(A) placing a pallet on a pallet support frame that can support the pallet;
(B) placing a skid loaded with a work on the pallet;
(C) A plurality of workpiece holding upper portions provided in a workpiece lifting device disposed below the pallet supporting frame body are provided so as to be movable up and down relatively with respect to the pallet supporting frame body, and the skid is supported by the workpiece holding upper portion. The process of lifting the upper workpiece,
(D) removing the skid from the pallet when the workpiece is lifted by the workpiece lifting unit;
(E) Lowering the work holding upper part relative to the pallet support frame and placing the work directly on the pallet;
A workpiece loading method for a pallet characterized by comprising the steps described above. A method of placing a workpiece loaded on a frame-shaped skid on a pallet,
(A) placing a pallet on a pallet support frame that can support the pallet;
(B) placing a skid loaded with a work on the pallet;
(C) A plurality of workpiece holding upper portions provided in a workpiece lifting device disposed on the lower side of the pallet support frame body are provided so as to be movable up and down relatively with respect to the pallet support frame body, Lifting the work on the skid by the upper part;
(D) a step of moving the skid in the front-rear direction or the left-right direction in order to remove the skid from the pallet when the workpiece is lifted by the plurality of workpiece holding portions;
(E) a step of relatively lowering only the workpiece holding portion that is in a state of inhibiting the movement of the skid by the movement of the skid in the one direction, and supporting the workpiece by a plurality of other workpiece holding portions;
(F) After the skid has passed the position of the relatively lowered workpiece holding upper portion, the step of supporting the workpiece by relatively raising the lowered workpiece holding upper portion again.
(G) A step of removing skid from the pallet by performing the steps (e) and (f) at least once.
(H) a step of lowering the workpiece holding portion relative to the pallet and placing the workpiece directly on the pallet;
A workpiece loading method for a pallet characterized by comprising the steps described above.   A workpiece loading device for directly loading a workpiece loaded on a frame-shaped skid onto a pallet, a pallet support frame capable of supporting the pallet, and a frame shape on the pallet supported by the pallet support frame A workpiece lifting device disposed below the pallet support portion of the pallet support frame for lifting the workpiece loaded on the skid, and the workpiece lifting device with respect to the pallet support frame A workpiece mounting device comprising a plurality of workpiece holding upper portions that can move up and down relatively.   4. The workpiece mounting apparatus according to claim 3, wherein an appropriate number of workpiece holding portions among the plurality of workpiece holding portions are configured to be individually movable up and down.   5. The work placement apparatus according to claim 3, wherein a work support position when the work is lifted by a plurality of work lifting portions in the work lifting device is configured to be changeable in accordance with the dimensions of the work. A workpiece placement device characterized by that.   A plurality of shelves capable of entering and exiting the pallet are provided, and a pallet support frame that can be moved up and down to a position corresponding to each shelf position is vertically movable, and the pallet is mounted on the pallet support frame with respect to each shelf. A shelf apparatus movably provided with a traverser for entering and exiting, wherein the pallet support frame is placed on a pallet supported by the pallet support frame below a vertically moving region in which the pallet support frame moves up and down. A workpiece lifting device for lifting a workpiece on a skid is provided, and a plurality of workpiece lifting portions provided in the workpiece lifting device are provided so as to be vertically movable relative to the pallet support frame. Shelf device.   7. The shelf apparatus according to claim 6, wherein an appropriate number of workpiece holding parts among the plurality of workpiece holding parts are configured to be individually movable up and down.   The shelf device according to claim 6 or 7, wherein a workpiece upper portion of the workpiece lifting device is configured to be position-changeable in accordance with a workpiece size.   9. The shelf apparatus according to claim 6, 7 or 8, wherein shelves from which pallets can be put in and out are provided in a plurality of stages in the vertical direction and in a plurality of rows in the horizontal direction, and the pallet support frame is a moving frame that is movable in the horizontal direction. A shelf apparatus characterized in that it can be moved up and down and the work lifting device is provided in the moving frame at a position below the pallet support frame.   A skid for use in a method of loading a workpiece onto a pallet, wherein one end of a plurality of stringers arranged in parallel to support the workpiece is provided integrally with a transverse beam and the other end of the stringer A skid characterized in that the part side is open.   A skid for use in a method of loading a work on a pallet, wherein one end of a plurality of cross-girder members provided in parallel to support a work is provided integrally with a vertical girder member, and the other end of the cross-girder member A skid characterized in that the part side is open.   The skid according to claim 10 or 11, wherein the stringer member is provided with a hole or a notch portion through which a fork in a forklift can freely enter and exit.