JP6777950B2 - Variable dimensional palette - Google Patents

Description

The present invention relates to a variable size pallet, for example, a variable size pallet in which the mounting area can be adjusted according to the size of a load.

Conventionally, a dimensionally variable pallet configured so that the size (area) of the mounting surface can be adjusted according to the size of the load has been known, and the configuration is disclosed in Patent Document 1.
Here, the dimensionally variable pallet described in Patent Document 1 will be described with reference to FIG.

As shown in FIG. 18A, in the variable dimensional pallet 200, a plurality of plate members 210 having crossbars 216 attached to the back surfaces of both ends thereof are arranged in parallel in the Y-axis direction, and between the plate members 210, the same at both ends. A plate material having a crosspiece 216 attached to the back surface is interposed in the divided plate materials 211a and 211b divided into two in the middle of the longitudinal direction (X-axis direction), and the adjacent plate materials 210 and the divided plate materials 211a and 211b are "doglegged" respectively. It is configured to be freely displaceable in the vertical and horizontal directions (XY directions) by being connected by the link mechanism 212 of the above.

The "V-shaped" link mechanism 212 is attached to the plate material 210 and the divided plate materials 211a and 211b at a plurality of locations separated by a required interval in the X-axis direction, and is adjacent to the plate materials 210 and the divided plate materials 211a and 211b. Are combined and integrated.
Then, the link mechanism 212 enables the plate members 210 on both sides to operate in the Y-axis direction and the divided plate members 211a and 211b in the X-axis direction with respect to the plate member 210 arranged in the center. ing.

Further, on the back surface of the variable dimensional pallet 200, a pair of crosspieces 218 composed of an inner crosspiece 219 and an outer crosspiece 220 adjacent to each other so as to be slidable are arranged parallel to the Y direction.
Further, the inner rail 219 and the outer rail 220 are provided with a plurality of bolt holes in the longitudinal direction thereof, and bolts are inserted into arbitrary bolt holes of the inner rail 219 and arbitrary bolt holes of the outer rail 220 to form nuts. The inner rail 219 and the outer rail 220 can be integrated by tightening the bolts.

Then, when the plate material 210 and the divided plate materials 211a and 211b are extended (or reduced), the plate material 210 and the divided plate materials 211a are fixed by inserting bolts into arbitrary bolt holes of the inner rail 219 and the outer rail 220. The 211b can be fixed in an extended (or contracted) posture.

According to the variable dimensional pallet 200 configured as described above, the size of the mounting surface can be adjusted according to the size of the luggage as shown in FIG. 18B, and the loading platform of a warehouse, a truck, or the like can be adjusted. Can be efficiently placed in the space of. As a result, by using the variable size pallet 200, energy saving in the distribution process can be realized (the number of deliveries can be reduced and the distribution cost (cost such as fuel cost and labor cost) can be reduced). ..
Further, according to the variable size pallet 200, the size of the mounting surface can be changed (because it is not necessary to prepare a pallet for each size of luggage), so that the pallet can be reused efficiently. (Resource saving can be realized).

However, the above-mentioned conventional dimensionally variable pallet (see FIG. 18) has the following technical problems.
Specifically, the dimensionally variable pallet 200 of the above-mentioned prior art is configured so that only the divided plate members 211a and 211b arranged on the side surface of the plate member 210 are displaced in the X direction.
Therefore, as shown in FIG. 18B, when the mounting surface of the variable dimensional pallet 200 is enlarged, the ends of the divided plate members 211a and 211b protrude from the plate material 200 (left and right shown). There is a technical problem that the rigidity of the end portions (the region indicated by the broken line W in the drawing) of the protruding divided plate members 211a and 211b cannot be secured due to the uneven shape of the edge portion.

As a result, in the variable dimensional pallet 200, when the mounting surface is enlarged, a heavy load may not be mounted on the ends (region indicated by the broken line W) of the divided plate members 211a and 211b.
Further, in the variable size pallet 200, even if a large number of small luggages are to be placed in the state where the mounting surface is enlarged (the state shown in FIG. 18B), the luggages are placed in the area indicated by the broken line W. I couldn't put it.
That is, in the variable dimensional pallet 200, even if the mounting surface is enlarged, a so-called dead space in which luggage cannot be placed is created, and the mounting surface cannot be effectively utilized.

Further, when adjusting the size of the mounting surface, the above-mentioned variable dimensional pallet 200 moves the link mechanism 212 to change the size of the mounting surface, and then on the back surface of the plate material 210 and the divided plate materials 211a and 211b. It is necessary to insert and fasten bolts into the bolt holes of the provided rails 218 (inner rails 219 and outer rails 220) (hereinafter referred to as "locking work"), which is troublesome and adjustment work. It took a long time and it was not easy to use.
In addition, it was impossible to change the dimensions of the pallet and fix the dimensions after placing a certain amount of luggage on the mounting surface.

In order to solve the above problems, it is necessary to have a configuration in which the entire area can be changed without forming unnecessary irregularities on the edge portion of the mounting surface.
Patent Document 2 discloses a configuration of a vise workbench in which the area of the work mounting surface can be changed, although the purpose of use is different from that of the pallet.
FIG. 19 shows a perspective view of the workbench disclosed in Patent Document 2, and FIG. 20 shows a partial cross-sectional view of the main part thereof.

The workbench 300 shown in FIG. 19 includes a top machine 301 and a support body 302 that is a leg that supports the top machine 301 at a predetermined height position.
The top body 301 has a pair of elongated vise beam plates 303, 304 arranged substantially in parallel, and at both ends in the longitudinal direction of the vise beam plates 303, 304, in a direction orthogonal to the vise beam plates 303, 304. It is elongated and is provided with a pair of advancing / retreating mechanism portions 310 and 311 that support the vise beam plates 303 and 304.
As shown in the figure, handles 328 for the operator to operate are provided on one end side of the advance / retreat mechanism portions 310 and 311 in the longitudinal direction, and the pair of handles are aligned in the same direction. The advancing / retreating mechanism units 310 and 311 are held in a substantially parallel state by the support body 302.
Further, by rotating the pair of handles in either the left or right direction, the pair of advancing / retreating mechanism units 310 and 311 are operated, and the position of one vise beam plate 303 is fixed to the other vise beam. The board 304 moves forward and backward.

More specifically, as shown in FIG. 20 (only the advancing / retreating mechanism unit 310 is shown), the advancing / retreating mechanism unit 310 (311) has a support member 321 extending orthogonal to the longitudinal direction of the vise beam plates 303 and 304. ing. The support member 321 is formed of, for example, a metal material in a square pipe shape, and a groove portion 321a extending linearly along the longitudinal direction of the support member 321 is formed on the upper surface thereof.

Further, in the internal space of the support member 321, a straight rod-shaped vise screw 313 extending along the longitudinal direction thereof is rotatably provided around an axis. Further, in the support member 321, a slide member 315 having a female screw portion 315a screwed to the vise screw 313 is provided.
Further, on the upper surface of the support member 321, a vise beam plate 303 is arranged via a spacer block 322 on one end side in the longitudinal direction thereof, and the vise beam plate 303 and the spacer block 322 are attached to the support member 321. On the other hand, it is fixed by a bolt screw 323. On the other hand, on the other end side, a vise beam plate 304 is arranged via a spacer block 324, and the vise beam plate 304 and the spacer block 324 have a groove portion 321a with respect to the slide member 315 in the support member 321. It is fixed by a bolt screw 325 via the bolt screw 325.

As a result, when the vise screw 313 rotates in any direction around the axis, the slide member 315 moves forward and backward according to the rotation direction, and the vise beam plate 304 moves with the slide member 315 depending on the groove portion 321a. It is configured as follows.
Further, a handle 328 is provided at the end of the vise screw 313 on the side of the vise beam plate 303 so that the operator rotates the handle 328 so that the vise screw 313 rotates about an axis. It has been done.

According to the workbench 300 configured in this way, as shown in FIG. 19, by turning the pair of handles 328 provided on the left and right front in the same direction, the vise beam plate 304 is compared with the vise beam plate 303. The area of the work mounting surface formed by the vise beam plates 303 and 304 can be changed by moving forward and backward.

Japanese Unexamined Patent Publication No. 8-217701 Japanese Unexamined Patent Publication No. 52-155498

However, when the configuration of the workbench 300 (top machine 301) is applied to the pallet as it is, there are the following technical problems.
That is, in the configuration of the workbench 300 shown in FIGS. 19 and 20, in the advancing / retreating mechanism units 310 and 311 for moving the vise beam plate 304 forward and backward, the work mounting surface by the pair of vise beam plates 303 and 304 The total length of the support member 321 that supports the vise beam plates 303 and 304 does not change even if the size of the vice beam plates is changed. In addition, a support machine 302 that supports the support member 321 (advance / retreat mechanism unit 310, 311) so that the position does not shift is also required.
Therefore, when the size of the work mounting surface by the pair of vise beam plates 303 and 304 is reduced, the shape of the base (support member 321 and support machine 302) does not change even if there is no unevenness on the upper edge. , There was a problem that the overall dimensions did not change when applied to the pallet.

Further, in the workbench disclosed in Patent Document 2, the workbench is sandwiched between a pair of vise beam plates 303 and 304, and the entire dimensions are maintained by fastening screws, whereas the workbench has a variable size pallet. Therefore, there is a difference in application that the pallet size must be changed before the work is placed and the pallet size must be maintained after the work is placed.
In order to enable the above-mentioned applications, the workbench disclosed in Patent Document 2 has a large number of component parts, and as a result, there are many places where friction is generated between the parts. There is a problem that there is a high possibility that problems such as insufficient power transmission will occur.
Furthermore, due to the configuration of the application, it is necessary to make a sufficient margin between each part, and there is a problem in maintaining the dimensions after the variable when using the pallet.
In addition, due to the above-mentioned problems, it is possible to realize the basic requirements for using the pallet with variable dimensions, such as low-cost manufacturing, ease of variable dimensions, and maintenance of changed dimensions. It was difficult.

The present invention has been made to solve the above technical problems, and an object of the present invention is a dimensionally variable pallet capable of changing the size of a mounting surface on which luggage is placed, and the mounting surface of the mounting surface. An object of the present invention is to provide a dimensional variable pallet that can reduce the dead space in which luggage cannot be placed even if the size is changed.

In order to solve the above-mentioned problems, in the variable size pallet according to the present invention, one plate-shaped deck board is arranged on the upper surface side, or a plurality of plate-shaped deck boards are arranged in parallel and on the lower surface side. A plurality of block members in which one or a plurality of plate-shaped baseboards are arranged in parallel with the deckboard, and the deckboard and the baseboard are arranged on both ends in the longitudinal direction and in the center thereof, respectively. The two deck board units are provided with two deck board units each having a rectangular mounting surface formed by fixing to the upper and lower surfaces, and the two deck board units are composed of a reference deck board unit and a movable deck board unit. The reference deck board unit and the movable deck board unit are arranged in parallel on the floor surface, and the width dimension of the reference deck board unit in the arrangement direction is formed longer than the width dimension of the movable deck board unit. It is a variable pallet, which is provided at least on both ends in the longitudinal direction of the deck board unit, and is rotatable about an axis in the unit with the reference deck board unit side as a base end toward the movable deck board unit side. A plurality of shafts having a screw groove formed on the peripheral surface at least in a predetermined range along the axial direction on the movable deck board unit side by being inserted into through holes formed in the plurality of block members. A rod and a female screw portion that is screwed into a screw groove formed on the peripheral surface of the shaft rod at a predetermined position on the movable deck board unit side and is held so as not to rotate together with the rotation of the shaft rod. The movable deck board unit that holds the female screw portion by rotating the plurality of shaft rods around the shaft is relative to the reference deck board unit along the longitudinal direction of the shaft rod. It is characterized in that a part of the reference deck board unit is arranged in the center of the pallet as the size of the pallet changes by moving in the direction of separation or proximity.
Further, in order to solve the above-mentioned problems, in the dimensionally variable pallet according to the present invention, one plate-shaped deck board is arranged on the upper surface side, or a plurality of plate-shaped deck boards are arranged in parallel, and the lower surface is arranged. One or more plate-shaped baseboards are arranged in parallel with the deckboard on the side, and the deckboard and the baseboard are arranged on both ends in the longitudinal direction and in the center thereof, respectively. It is provided with three deck board units each having a rectangular mounting surface formed by fixing to the upper and lower surfaces of the block member, and the three deck board units are reference arranged on one end side or both end sides of the pallet. It is composed of a deck board unit and at least one movable deck board unit, the reference deck board unit and the movable deck board unit are arranged in parallel on a floor surface, and the width dimension of the deck board unit in the arrangement direction is , A variable pallet that is formed differently between adjacent deckboard units and has the longest width dimension in the arrangement direction of the deckboard units arranged in the middle, at least on both ends of the deckboard unit in the longitudinal direction. The reference deck board unit side is used as a base end and is rotatably extended around the axis in the unit toward the movable deck board unit side, and penetrations formed in the plurality of block members. A plurality of shaft rods inserted into the holes and having screw grooves formed on the peripheral surface at least in a predetermined range along the axial direction on the movable deck board unit side, and the shaft rods at predetermined positions on the movable deck board unit side. It has a female screw portion that is screwed into a screw groove formed on the peripheral surface of the shaft and is held so as not to rotate together with the rotation of the shaft rod, and by rotating the plurality of shaft rods around the shaft. The movable deck board unit that holds the female screw portion moves along the longitudinal direction of the shaft rod in a direction relative to or close to the reference deck board unit, and the dimensions of the pallet change and the pallet is changed. It is characterized in that a part of the deck board unit is arranged in the center.
According to such a configuration, the movable deck board unit can be easily moved in a direction relatively separated or close to the reference deck board unit by the rotation operation of the shaft rod.
That is, the area of the entire pallet can be freely changed, and the dead space in which luggage cannot be placed can be reduced.
Further, since two or more shaft rods are provided, the load when rotating the shaft can be reduced, the operator can more easily perform the variable work of the pallet area, and the rigidity of the pallet can be improved. ..

Further, the reference deck board unit and the plurality of movable deck board units may be arranged in parallel, and in that case, the female screw portions having different pitches of the screw grooves are held in each movable deck board unit. In addition, the pitch of the screw groove is formed larger as the movable deck board unit is farther from the reference deck board unit, and extends to the plurality of movable deck board units with the reference deck board unit side as the base end. It is desirable that the pitch of the screw grooves formed on the peripheral surface of the shaft rod is gradually changed so as to be screwed into the female screw portion held by each movable deck board unit.
With this configuration, the movable deck board unit that is farther from the reference deck board unit is separated faster, so that the pallet area can be expanded in a short time.
On the other hand, when it is desired to reduce the pallet area, the pallet area can be reduced in the same short time by rotating the shaft rod in the opposite direction.

Further, among the reference deck board unit and the movable deck board unit arranged in parallel, at least one rail member fixed to the deck board unit at one end and extended toward the deck board unit at the other end is provided. It is desirable that the deck board unit to which the rail member is not fixed can slide along the rail member.
According to such a configuration, each deck board unit can be supported not only by the shaft rod but also by the rail member, and the rigidity can be further improved.

Further, the plurality of deck board units are divided into at least two in the longitudinal direction of the deck board, and are provided so as to be rotatable around the axis from the divided unit on one end side toward the unit on the other end side. A shaft rod having a screw groove formed on its peripheral surface in a predetermined range along the axial direction of the unit on the other end side and the unit on the other end side are held in a state where they do not rotate together with the rotation of the shaft rod. It has a female screw portion that is screwed into a screw groove formed on the peripheral surface of the shaft rod, and by rotating the shaft rod around the shaft, the other end side of the divided unit on one end side is used. It is desirable for the units to move apart or closer together.
With this configuration, the pallet area can be changed not only in the uniaxial direction but also in the biaxial direction, the pallet area can be further adjusted to the loading area of the luggage, and the dead space can be reduced.

Further, a plurality of legs provided on the back surface of the plurality of deck board units and forming a predetermined gap between the plurality of deck board units and the floor surface are provided, and the plurality of legs are provided on all four side surfaces. It is desirable that a fork insertion portion into which the fork of the lifter can be inserted is formed between the two.
By providing the plurality of legs in this way, a gap can be formed below the deck board unit. In particular, by forming the legs with a coma-shaped member, the front, rear, left and right side surfaces of the variable size pallet communicate with the gap, and the lifter fork can be inserted from all sides, greatly improving convenience. Can be done.
Further, since the lifter fork can support and lift the entire pallet from the lower surface of the pallet, damage to the pallet can be minimized.

Further, between a plurality of adjacent deck board units, a long intermediate member extending along the longitudinal direction of the deck board and having the shaft rod inserted in a direction orthogonal to the longitudinal direction, and the deck. A stopper means for limiting the moving distance of the board unit and the intermediate member along the shaft rod is provided, and the gap between the deck board unit and the intermediate member is set to a predetermined dimension or less by the stopper means. Is desirable.
By providing the intermediate member and the stopper means in this way, it is possible to obtain a dimensional distance to be changed without leaving a large gap on the upper and lower surfaces of the pallet.
By limiting the clearance dimension between the deck board unit and the intermediate member to, for example, the fork width of the lifter or less, the pallet can be stably supported by the fork of the lifter.

In addition, it is desirable that the shaft rod is marked with a scale, whereby the pallet size can be changed accurately.
Further, it is desirable to have a fork insertion portion into which a lifter fork can be inserted at least on one side of any one of the plurality of deck board units.
By having the fork insertion portion in this way, the fork of the lifter can be inserted into the pallet to perform the work.

According to the present invention, in a dimensional variable pallet that can change the size of the mounting surface on which luggage is placed, even if the size of the mounting surface is changed, the dead space in which the luggage cannot be placed can be reduced. ..

FIG. 1 is a perspective view showing an embodiment of a dimensional variable pallet according to the present invention. FIG. 2 is a perspective view of the back surface side of the dimensional variable pallet of FIG. FIG. 3 is an enlarged view of the rear end side back surface of the dimensionally variable pallet of FIG. FIG. 4 is an enlarged view looking at the rear end of the dimensional variable pallet of FIG. FIG. 5 is a perspective view of the rear end side of the variable dimensional pallet of FIG. FIG. 6 is a partially enlarged view of the front end side of the dimensional variable pallet of FIG. FIG. 7 is a side view schematically showing the configuration of the feeding means. FIG. 8 is a perspective view showing a state in which a scale is marked on the shaft rod. FIG. 9 is a perspective view showing a modified example of the dimensional variable pallet according to the present invention. FIG. 10 is a perspective view showing another modified example of the dimensional variable pallet according to the present invention. FIG. 11 is a perspective view showing still another modification of the dimensionally variable pallet according to the present invention. FIG. 12 is a plan view partially showing FIG. FIG. 13 is a plan view partially showing still another modification of the dimensionally variable pallet according to the present invention. FIG. 14 is a front view showing a state in which the lifter fork is inserted into the dimensionally variable pallet according to the present invention. FIG. 15A is a front view showing a state in which the lifter fork is inserted from the front side into still another modification of the dimensionally variable pallet according to the present invention, and FIG. 15B is a front view showing a state in which the lifter fork is inserted from the side surface side. It is a side view which shows the state which inserted. 16 (a) and 16 (b) are plan views schematically shown for explaining the operation of still another modification of the dimensional variable pallet according to the present invention. 17 (a) and 17 (b) are plan views schematically showing a dimensionally variable pallet for explaining the operation following FIG. FIG. 18 is a plan view of a conventional variable dimensional pallet. FIG. 19 is a perspective view of a conventional workbench in which the area of the mounting surface can be changed. FIG. 20 is a partial cross-sectional view of the main part of the workbench of FIG.

Hereinafter, embodiments of the variable dimensional pallet according to the present invention will be described with reference to the drawings. The variable dimensional pallet according to the present invention is used by being mounted on a floor surface, and a rectangular mounting surface is formed by a plurality of plate-shaped deck boards arranged in parallel on the upper surface thereof, and the front surface is formed. Luggage is placed on the written surface.
FIG. 1 is a perspective view showing an embodiment of a dimensional variable pallet according to the present invention. FIG. 2 is a perspective view of the back surface side of the dimensional variable pallet of FIG.
In addition, the positive direction of the x-axis shown in FIG. 1 is the front side, the negative direction is the rear side, and the y-axis direction is the width (left and right) direction.

The variable dimensional pallet 1 shown in FIG. 1 includes a first deck board unit 3A (reference deck board unit) in which a plurality of plate-shaped deck boards 2 are arranged in parallel on the upper surface, and a second deck board unit 3B (movable deck board unit). ) And a third deck board unit 3C (movable deck board unit).
As shown in FIG. 1, the first deck board unit 3A has a plurality of plate-shaped deck boards 2 extending in the width direction arranged in parallel on the upper surface side thereof, and a plurality of plates on the lower surface side as shown in FIG. Baseboards 18 and 19 are arranged in parallel. The plurality of deck boards 2 and the base boards 18 and 19 are fixed to the upper and lower surfaces of the block members 4 and 5 provided on the left and right end sides thereof and the block members 10 and 11 provided in the center, respectively. There is.
Of the baseboards 18 and 19, the baseboard 19 is provided so that a pallet that is heavily worn can be used for a long period of time and the size change can be smoothly performed. That is, the base board 19 is provided as a receiving material in the vicinity of the separation portion between the units. Further, the base board 19 may be formed of the same material as the base board 18 (for example, wood), but is preferably formed of a material stronger than the base board 18 (for example, iron) to make the pallet durable. The sex can be further improved.

Further, in the second deck board unit 3B, a plurality of deck boards 2 are arranged in parallel on the upper surface side as shown in FIG. 1, and base boards 18 and 19 are arranged on the lower surface side as shown in FIG. .. The plurality of deck boards 2 and the base boards 18 and 19 are fixed to the upper and lower surfaces of the block members 7 provided on the left and right end sides thereof and the rail plate 15 provided in the center, respectively.

Further, in the third deck board unit 3C, a plurality of deck boards 2 are arranged in parallel on the upper surface side as shown in FIG. 1, and a plurality of base boards 18 and 19 are arranged in parallel on the lower surface side as shown in FIG. Have been placed. The plurality of deck boards 2 and the base boards 18 and 19 are fixed to the upper and lower surfaces of the block members 8 and 9 provided on the left and right end sides thereof and the block members 12 and 13 provided in the center, respectively. There is.

In this way, since each deck board unit has a configuration in which the deck board 2 and the base boards 18 and 19 are connected by a block member, a predetermined height is provided between the deck board 2 and the base boards 18 and 19. A vertical gap (not shown) will be formed.
This gap communicates with the fork insertion portion 1a, which is an opening formed at the front and rear ends of the variable pallet 1 in the x direction, and by inserting the lifter fork from the fork insertion portion 1a, all decks are connected. The board unit is supported by a lifter fork and can be lifted.

Further, the second deck board unit 3B is movable so as to be separated from or close to the first deck board unit 3A in the front-rear direction (x-axis direction).
Further, the third deck board unit 3C is also movable so as to be separated from or close to the first deck board unit 3A in the front-rear direction (x-axis direction).
Specifically, as shown in FIG. 2, on the back surface side of the variable dimensional pallet 1, a plurality of (three in the figure) rail plates 15 extending orthogonally to the longitudinal direction (pallet width direction) of the deck board 2 However, they are arranged at predetermined intervals in a state where the width direction is erected. In the present embodiment, each rail plate 15 is arranged in a state of being sandwiched between the block members 4 and 5 at both left and right ends of the first deck board unit 3A and the block members 10 and 11 at the center so as to be slidable from the left and right. At the same time, they are fixed to the block members 7 at both left and right ends of the second deck board unit 3B, and their front end sides pass through the second deck board unit 3B and extend to the third deck board unit 3C side.

In the second deck board unit 3B, the block members 6 and 7 are arranged in a state where rail plates 15 extending from both the left and right sides of the first deck board unit 3A are narrowly held and fixed from the left and right.
As a result, the second deck board unit 3B fixed to the block members 6 and 7 is slidable in the front-rear direction with respect to the first deck board unit 3A.

Further, in the third deck board unit 3C, the central block members 12 and 13 slide the rail plate 15 extending from the center of the first deck board unit 3A through the second deck board unit 3B from the left and right. They are arranged so that they are sandwiched as much as possible. Further, the block members 8 and 9 on the left and right sides sandwich the rail plate 15 extending from the left and right sides of the first deck board unit 3A through the second deck board unit 3B so as to be slidable from the left and right. Have been placed.
As a result, the third deck board unit 3C fixed to the block members 8, 9, 12, 13 is made slidable in the front-rear direction with respect to the first deck board unit 3A.

Further, in the variable dimensional pallet 1, the feed is provided as a structure for an operator to easily move the second deck board unit 3B and the third deck board unit 3C with respect to the first deck board unit 3A. The means 16 is provided.
In the present embodiment, the feeding means 16 is provided on both the left and right sides of the variable dimensional pallet 1 as shown in FIG.
The configuration of each feeding means 16 will be described with reference to a partially enlarged view of FIGS. 3 to 6 and a schematic view of FIG. 7.
FIG. 3 is an enlarged view of the rear end side of the variable dimensional pallet 1 (partially the baseboards 18 and 19 are removed for explanation), and FIG. 4 is an enlarged view of the rear end of the variable dimensional pallet 1 as viewed. FIG. 5 is a perspective view of the rear end side of the variable dimensional pallet 1, and FIG. 6 is a partially enlarged view of the front end side of the variable dimensional pallet 1. Further, FIG. 7 is a side view schematically showing the configuration of the feeding means 16.

Each feeding means 16 has a shaft rod 20 extending in the front-rear direction of the pallet and axially routed across all deckboard units. The shaft rod 20 is rotatably provided around an axis on both the left and right sides of the variable dimensional pallet 1.
Further, the block members 4, 6 and 8 arranged on the left and right sides of the variable dimensional pallet 1 are formed with through holes penetrating in the front-rear direction, respectively, and the shaft rod 20 is the block members 4, 6 , 8 is inserted through the through hole in a rotatable state. By providing the block members 4, 6 and 8 through which the shaft rod 20 is inserted in this way, the straightness of the shaft rod 20 in each deck board unit is maintained.
Further, since the shaft rod 20 is axially routed from the first deck board unit 3A to the third deck board unit 3C through the second deck board unit 3B on each of the left and right ends of the pallet, basically. The rigidity of the pallet can be maintained only by the shaft rod 20. Further, as described above, since the plurality of rail plates 15 are extended from the first deck board unit 3A to the third deck board unit 3C in the same manner as the shaft rod 20, the lifter has stronger rigidity as a pallet. It is configured to have sufficient resistance to thrusting and lifting movements by the fork.

Further, the shaft rod 20 has a thin shaft portion 20a having a screw groove having a small diameter and pitch, and a screw groove having a larger diameter and pitch formed on the front end side thereof (for example, twice the pitch of the fine shaft portion 20a). It has a thick shaft portion 20b having the above. That is, in one shaft rod 20, the pitch of the screw grooves formed on the peripheral surface is changed stepwise (two steps in the present embodiment).
As shown in FIG. 7, the thin shaft portion 20a of the shaft rod 20 is inserted through the through hole of the block members 4 and 6, and the thick shaft portion 20b is inserted through the through hole of the block member 8. There is.

Further, in the first deck board unit 3A on the rear end side of the pallet, the block member 4 is divided into blocks 4a and 4b in the front-rear direction as shown in FIG. 3, and the circumference of the thin shaft portion 20a is formed in the gap between them. A flange portion 21 formed by projecting radially on the surface is rotatably provided around the axis. That is, the flange portion 21 allows the shaft rod 20 to rotate only around the shaft without moving in the front-back and left-right directions of the pallet.
The flange portion 21 may be integrally formed with the shaft rod on the peripheral surface of the thin shaft portion 20a (it does not need to be screwed), or the flange portion 21 may be formed on the screwed thin shaft portion 20a. The nut may be screwed and fixed by welding or the like to form the nut.

Further, a handle insertion hole 23 is formed on the rear end surface of the block member 4b as shown in FIG. 4, and the handle insertion hole 23 communicates with the rear end of the thin shaft portion 20a as shown in FIG. .. The rear end of the thin shaft portion 20a has, for example, a hexagonal shape, and as shown in FIG. 5, a handle member 24 having an engageable socket at the tip thereof is inserted through the handle insertion hole 23, and the tip is inserted into the handle insertion hole 23. The shaft rod 20 can be easily rotated around the shaft by engaging with the rear end of the thin shaft portion 20a and rotating the handle member 24 around the shaft.

Further, as shown in FIG. 6, in the second deck board unit 3B, the block member 6 is divided into a block 6a and a block 6b in the front-rear direction, and a small nut screwed into the screw groove of the thin shaft portion 20a between them. 25 (female screw portion) is held so as not to rotate together with the rotation of the shaft rod 20. That is, the thin shaft portion 20a is inserted into the through holes of the blocks 6a and 6b in a state of being screwed into the small nut 25.
As a result, when the shaft rod 20 rotates around the shaft, the small nut 25 moves in the front-rear direction relative to the shaft rod 20 (thin shaft portion 20a), so that the second deck board provided with the small nut 25 is provided. The unit 3B moves in either the front-back direction with respect to the first deck board unit 3A.

Further, as shown in FIG. 6, in the third deck board unit 3C, the block member 8 is divided into a block 8a and a block 8b in the front-rear direction, and a large nut screwed into the screw groove of the thick shaft portion 20b between them. 26 (female screw portion) is held so as not to rotate together with the rotation of the shaft rod 20. That is, the thick shaft portion 20b is inserted into the through holes of the blocks 8a and 8b in a state of being screwed into the large nut 26.
As a result, when the shaft rod 20 rotates around the shaft, the large nut 26 moves in the front-rear direction relative to the shaft rod 20, so that the third deck board unit 3C provided with the large nut 26 is the first deck. It moves in either the front-back direction with respect to the board unit 3A.

It should be noted that the screw groove pitch of the large nut 26 provided in the third deck board unit 3C (thick) is larger than the screw groove pitch of the small nut 25 provided in the second deck board unit 3B (screw groove pitch of the thin shaft portion 20a). Since the screw groove pitch of the shaft portion 20b) is large, as shown in FIGS. 7A and 7B, the third deck is larger than the moving distance (speed) of the second deck board unit 3B with respect to the rotation of the shaft rod 20. The moving distance (speed) of the board unit 3C increases. Therefore, it is possible to avoid interference between the second deck board unit 3B and the third deck board unit 3C, and the distance (interval) between the deck board units can be made substantially equal.

Further, since the shaft rods 20 are provided on both the left and right sides of the pallet as described above, the shaft rods 20 on both the left and right sides are required to smoothly move the second deck board unit 3B and the second deck board unit 3B. Must be rotated in the same direction around the axis at the same time.
Here, by marking the scale 27 on the shaft rod 20 in advance as shown in FIG. 8, it is possible to accurately know the moving distance of the deck board unit by operating the handles on both the left and right sides (rotating operation of the shaft rod 20). , The accuracy of the work of expanding the pallet area can be improved.

When it is desired to expand the pallet area in the dimensionally variable pallet 1 configured in this way, the operator inserts the handle member 24 from the handle insertion hole 23 formed in the rear end surface of the block 4b of the first deck board unit 3A. The shaft rod 20 is rotated around the shaft in a predetermined direction.
As a result, the second deck board unit 3B fixed to the block member 6 moves in a direction away from the first deck board unit 3A at a predetermined speed based on the screw groove pitch of the thin shaft portion 20a.
Further, since the screw groove pitch of the thick shaft portion 20b is larger than the screw groove pitch of the thin shaft portion 20a of the shaft rod 20, the third deck board unit 3C fixed to the block member 8 has a screw of the thick shaft portion 20b. It separates from the first deck board unit 3A at a faster speed based on the groove pitch.
That is, since the deck board unit separated from the first deck board unit 3A whose position is fixed is separated faster, the pallet area can be expanded in a short time.
On the other hand, when it is desired to reduce the pallet area, the operator can rotate the shaft rod 20 in the opposite direction using the handle member 24, so that the pallet area can be reduced in the same short time.
Even in the state where the pallet area is most reduced, the pallet width is larger than the length of the shaft rod 20, so that the dimension of the variable pallet 1 changes within a predetermined range equal to or larger than the length dimension of the shaft rod 20.

As described above, according to the present embodiment, the movable deck board unit (second deck board unit 3B, third deck board unit 3C) can be easily changed to the reference deck board unit (second deck board unit 3B, third deck board unit 3C) by the rotation operation of the shaft rod 20. It can be moved relative to or closer to the first deck board unit 3A).
That is, the area of the entire pallet can be freely changed, and the dead space in which luggage cannot be placed can be reduced.
Further, since the variable dimensional pallet 1 described above can be configured with a small number of parts, it can be manufactured at low cost.
Further, since the number of parts is small, the friction between the parts is small, and there is no problem such as catching or insufficient force transmission when changing the dimensions. Therefore, the dimensions can be easily changed by turning the handle member 24.
Further, by removing the handle member 24 after changing the dimensions, it becomes difficult to rotate the shaft rod 20, and the changed dimensions do not change carelessly. Therefore, the changed dimensions can be used as a pallet while maintaining the changed dimensions. can do.
Further, even after a certain amount of luggage is placed on the mounting surface, the dimensions can be changed and fixed, and it can be applied to other logistics equipment (for example, roll box pallets).

In the above embodiment, the rotation of the shaft rod 20 axially passed through the plurality of deck board units causes the two movable deck board units to move apart or close to each other at different speeds with respect to the reference deck board unit. The pallet area was changed.
However, in the variable dimensional pallet according to the present invention, the number of movable deck board units to be moved by the rotation of the shaft rod 20 and the area of each unit are not limited.
Further, since the moving speed of each deck board unit is also determined by the pitch of the screw grooves constituting the shaft rod 20 as described above, the movable deck board unit on the side farther from the first deck board unit 3A has a screw groove. If the pitch of is large, the pitch dimensions can be set arbitrarily.

Further, in the above embodiment, the screw groove pitch is changed depending on the size of the diameter of the shaft rod 20, so that the moving distance (moving speed) of the second deck board unit 3B and the third deck board unit 3C is different. However, the present invention is not limited to the configuration.
For example, even if the shaft diameter of the shaft rod 20 is constant, such as changing from a single-threaded screw to a double-threaded screw on the same shaft rod 20, the screw groove pitch may be changed in the middle.

The variable dimensional pallet 1 is composed of two deck board units, that is, a first deck board unit 3A and a second deck board unit 3B, and a second deck board unit 3B is provided with respect to the first deck board unit 3A whose position is fixed. When moving in the direction of separation or proximity, for example, the configuration may be as shown in FIG.
In this case, the shaft rod 20 may be configured without changing its diameter and the pitch of the screw grooves.
Further, in the above-described embodiment, the baseboards 18 and 19 are provided on the lower surface side of each deck board unit 3A, 3B and 3C, and the baseboards 18 and 19 are installed with respect to the ground so that the dimensional variable pallet 1 Is maintained in a flat state, but the present invention is not limited to that form. For example, even if the baseboards 18 and 19 are not provided, the dimensional variable pallet 1 may be placed in a flat state. In that case, it is desirable that the ground contact surface near the separation portion between the units is reinforced by using a different material. Specifically, for example, when the entire pallet is made of resin, it is desirable to insert metal or the like into the inner side of the installation surface to reinforce it.

Further, in the above-described embodiment, the pallet is expanded or contracted only in one direction in the front-rear direction (x direction), but the dimensionally variable pallet according to the present invention is limited to that form. is not.
That is, as shown in FIG. 10, in addition to expansion and contraction in the front-back direction (x direction), expansion and contraction in the width direction (y direction) can also be configured. Note that FIG. 10 is a perspective view of a plurality of deck boards 2 covering the upper surface of the pallet with some deck boards 2 removed. Further, the deck board 2 shown in FIG. 10 is a wide board.
In this case, as shown in the figure, the deck board 2 and the base board 18 may be divided in the width direction (y direction), and the feeding means 16 may be provided on both ends in the front-rear direction (x direction).
In the illustrated configuration example, the dimensional variable pallet 1 is divided into three deck board units 3A, 3B, and 3C in the x-axis direction, and is divided into two deck board units 3D and 3E in the y-axis direction. ..

The deck board units 3B and 3C are configured to move forward and backward with respect to the deck board unit 3A in the front-rear direction (x direction) along the shaft rod 20 as described in the embodiment.
Further, the deck board unit 3D is configured to move forward and backward with respect to the deck board unit 3E along the shaft rods 30 extending in the width direction (y-axis direction) provided on both ends of the pallet in the x-axis direction. ing. That is, the shaft rod 30 is rotatably provided around the shaft, and a screw groove is formed on the peripheral surface in a predetermined range in the length direction thereof, and the deck board unit 3D is screwed into the screw groove of the shaft rod 30. The nut in contact (not shown) is held so as not to rotate together with the rotation of the shaft rod 30. Therefore, when the shaft rod 30 is rotated around the shaft, the deck board unit 3D provided with the nut screwed to the shaft rod 30 moves back and forth with respect to the deck board unit 3E. That is, according to such a configuration, in addition to expansion and contraction in the front-rear direction (x direction), expansion and contraction can be performed in the width direction (y direction).

Further, in the above embodiment, the first deck board unit 3A, which is a reference deck board unit, is arranged at one pallet end, and the movable deck board is arranged along the shaft rod 20 extending in the x-axis direction with the first deck board unit 3A as the base end. It is assumed that the second deck board unit side 3B and the third deck board unit 3C, which are units, move forward and backward with respect to the first deck board unit 3A.
However, the dimensionally variable pallet of the present invention is not limited to the form thereof. For example, a reference deck board unit may be arranged at both ends of the pallet, and a movable deck board may be arranged between them. ..
In this case, for example, as shown in FIG. 11, a deck board unit 3F and a deck board unit 3G, which are reference deck board units, are arranged at the pallet end, and a deck board unit 3H, which is a movable deck board, is arranged between them. The configuration is conceivable. Note that FIG. 12 is a plan view partially showing the configuration of FIG. 11.
In this configuration, rotatable shaft rods 20A and 20B are extended around the shaft from each of the deck board unit 3F and the deck board unit 3G toward the deck board unit 3H, and each shaft is extended to the deck board unit 3H side. The nut 25, which is screwed into the screw groove of the rods 20A and 20B, is held so as not to rotate together with the rotation of the shaft rods 20A and 20B.
With this configuration, the deck board unit 3H, which is a movable deck board, can be moved forward and backward by rotating the shaft rods 20A and 20B from the deck board unit 3F side or the deck board unit 3G side, respectively.

Further, in the above-described embodiment, among the blocks arranged in pairs so as to sandwich the left and right sides of the rail plate 15, the shaft rod 20 is inserted through the inner block, but the dimensional variable pallet of the present invention has a configuration. If there is, it is not limited to the configuration.
For example, as shown in FIGS. 11 and 12, rail plates 15 provided at both ends in the pallet width direction (y direction) are arranged inside, shaft rods 20A and 20B are arranged outside the rail plate 15, and further outside. The block members 31 and 32 may be arranged in the block members 31 and 32.
With this configuration, the shaft rods 20A and 20B have a configuration in which both sides thereof are sandwiched between the block members 31 and 32 and the rail plate 15, and the fork of the lifter is thrust when it is inserted into the fork insertion portion 1a. The shaft rods 20A and 20B can be protected from impacts caused by such factors. Further, since the block members 33 and 34 into which the shaft rods 20A and 20B are inserted are sandwiched between the block members 31 and 32 and the rail plate 15 on both the left and right sides thereof, the rigidity is increased and the thruster thrusts by the fork of the lifter. It is possible to prevent the handle insertion hole (the portion where the handle 24 is inserted in FIG. 12) from being damaged due to such an impact.

Further, in the above-described embodiment, the shaft rods 20 are provided on both end sides of the deck board unit, and the pallet dimensions are changed by rotating the two shaft rods 20 at the same time. The variable palette is not limited to its configuration.
For example, in addition to the shaft rods 20 at both ends of the deck board unit, one or more shaft rods 20 may be provided between them (the rigidity of the pallet is further improved by such a configuration).
Alternatively, as shown in the plan view of FIG. 13, one shaft rod 20 is arranged on the center side of the deck board, and this one shaft rod 20 is rotated around the axis by using the handle member 24, and the first shaft rod 20 is rotated. The second deck board unit 3B or the like may be moved with respect to the one deck board unit 3A. In this case, as a guide member for preventing rotation, preferably, both ends (at least one side) of the deck board unit are used so that the second deck board unit 3B or the like does not rotate relative to the axis of the first deck board unit 3A. , The rail member 15 is provided.
The rail member 15 is fixed to either the first deck board unit 3A or the second deck board unit 3B, and the other deck board unit is made slidable with respect to the rail member 15. With this configuration, even with one shaft rod 20, the dimensions can be easily changed while maintaining the pallet surface flat.

Further, in the above-described embodiment, in each deck board unit, a gap S1 having a predetermined height is formed between the deck board 2 and the base boards 18 and 19 as shown in FIG. Therefore, as shown in the drawing, the lifter fork F is inserted into the gap S1 from the front surface or the rear surface of the dimensional variable pallet 1 and lifted.
Alternatively, as shown in FIGS. 15 (a) and 15 (b), a plurality of legs 35 for supporting the deck board unit may be provided under the base boards 18 and 19. By providing the leg portion 35, a gap S2 is newly formed below the deck board unit. At this time, by forming the leg portion 35 with the coma-shaped member, the front, rear, left and right side surfaces of the variable dimension pallet 1 communicate with the gap S2 as shown in FIGS. 15A and 15B. (Because the fork insertion portion is formed between the legs 35), the fork F of the lifter can be inserted from all sides, and the convenience is greatly improved. Further, since the lifter fork F can support and lift the entire pallet from the lower surface of the pallet instead of supporting only the deck board 2 and lifting the entire pallet as shown in FIG. 14, damage to the pallet is minimized. be able to.

Further, in the above-described embodiment, the maximum dimension when the first deck board unit 3A and the second deck board unit 3B are separated from each other, or the second deck board unit 3B and the third deck board The maximum dimension when separated from the unit 3C is not particularly limited.
However, as shown in FIG. 15B, when the lifter fork F is inserted along the longitudinal direction of the deck board 2 and the baseboards 18 and 19, the gap between the deckboard units is the width of the fork F. If it is larger than, the support of the pallet by the fork F becomes unstable.
Therefore, as shown schematically in FIG. 16A, the gap between the deck board units extends in the longitudinal direction of the deck board 2 between the deck board units 3A and 3B so that the clearance dimension between the deck board units does not become larger than the width of the fork F. It is desirable to provide the provided long intermediate member 36. Note that FIG. 16A shows an intermediate member 36 provided between the first deck board unit 3A and the second deck board unit 3B.

In FIG. 16A, a block member 36a is provided at one end of the intermediate member 36, and between the block member 36a and the block member 6b, the peripheral surface of the shaft rod 20 is directed outward, for example. A first stopper member 37 (stopper means) that projects in an annular shape is provided. The first stopper member 37 is provided so as not to move at least in the axial direction of the shaft rod 20 (may be integrally formed with the shaft rod 20), and is locked to the side surface of the block member 36a to be an intermediate member. It is designed to limit the movement distance of 36.

Further, in the intermediate member 36, a second stopper member 38 (stopper means) extending long toward the second deck board unit 3B, which is a movable deck board unit, is provided on the side surface of the block member 36a. As shown in the figure, the second stopper member 38 has a hook-shaped portion 38a whose tip is bent inward, and the hook-shaped portion 38a has a block member 6a when the pallet area is expanded. It is attached so as to lock against. Further, by engaging the hook-shaped portion 38a of the second stopper member 38 with respect to the block member 6a in this way, the moving distance of the second deck board unit 3B with respect to the intermediate member 36 is limited.

In such a configuration, for example, when the pallet area is expanded from the state of FIG. 16A, the shaft rod 20 is rotated in a predetermined direction around the shaft. At this time, as shown in FIG. 16B, the first deck board unit 3A moves in the direction of being separated from the intermediate member 36 and the second deck board unit 3B. Then, the intermediate member 36 stands still until the first stopper member 37 comes into contact with the block member 36a at the end of the intermediate member 36, and the gap dimension between the first deck board unit 3A and the intermediate member 36 is the lifter. It is limited to the dimension Y1 which is smaller than the fork width.

As shown in FIG. 16B, when the first stopper member 37 comes into contact with the block member 36a of the intermediate member 36 and the shaft rod 20 is continuously rotated around the axis, FIG. 17A shows. As shown, the second deck board unit 3B moves so as to be separated from the intermediate member 36 (the intermediate member 36 is restricted from moving upward by the first stopper member 37).
Then, as shown in the drawing, the second deck board unit 3B can move until the hook-shaped portion 38a of the second stopper member 38 is locked to the block member 6a, and the intermediate member 36 and the second deck board unit 3B are connected to each other. The clearance dimension between them is limited to the dimension Y2 which is smaller than the fork width of the lifter.
In this way, the distance between the first deck board unit 3A and the second deck board unit 3B can be expanded to the dimensions Y1 + Y2, and the gap can be limited to Y1 and Y2 smaller than the fork width. , Lifting work by the lifter fork F can be performed stably.

When the pallet area is reduced from the maximum expanded state as shown in FIG. 17A, the shaft rod 20 is rotated in the opposite direction around the shaft. As a result, first, as shown in FIG. 17B, the first deck board unit 3A moves in the direction approaching the second deck board unit 3B, and the intermediate member 36 comes into contact with the first deck board unit 3A.
Further, from the state of FIG. 17B, the intermediate member 36 and the first deckboard unit 3A approach the second deckboard unit 3B, and as shown in FIG. 16A, the second deckboard unit 3B is in the middle. The pallet area is minimized by contacting the member 36.
Further, even if the intermediate member 36 moves up and down along the shaft rod 20 in the state of FIG. 16 (b) and the states of FIGS. 17 (a) and 17 (b), the gap dimension is the dimensions Y1 and Y2 or more. Must not be.
Further, in the configuration examples shown in FIGS. 16 and 17, the gap dimensions Y1 and Y2 have been described as being smaller than the fork width of the lifter, respectively, but the sizes of the gap dimensions Y1 and Y2 are not limited. By providing the intermediate member and the stopper means as described above, it is possible to obtain the dimensional distance to be changed without leaving a large gap on the upper and lower surfaces of the pallet.

Further, in the above-described embodiment, the deck board is shown as a long plate shape, but the shape is not limited.
That is, any board may be used as long as it forms the upper surface of each deck board unit, and for example, a square board may be used as shown in FIG.

In the case of variable pallets, the deck board unit that actually displaces (moves) when the pallet size is changed due to the size, weight, friction, etc. of each deck board unit is (reference deck board unit or movable deck board). It is not possible to identify (whether it is a unit).
However, in the above-described embodiment, for convenience of explanation, they are distinguished by the names of a reference deck board unit and a movable deck board unit. Therefore, in the variable dimensional pallet according to the present invention, not only when the movable deck board unit is displaced (moved) with respect to the stationary reference deck board when the dimension is changed, but also with respect to the stationary movable deck board unit. It can also be applied when the deck board unit is displaced (moved) or both are displaced (moved).

1 Variable dimensional pallet 1a Fork insertion part 2 Deck board 3A First deck board unit 3A (reference deck board unit)
3B 2nd deck board unit 3B (movable deck board unit)
3C Third deck board unit 3C (movable deck board unit)
4 block member 4a block 4b block 5 block member 6 block member 6a block 6b block 7 block member 8 block member 8a block 8b block 9 block member 10 block member 11 block member 12 block member 13 block member 15 rail plate 18 baseboard 19 base Board 20 Shaft rod 20a Fine screw part 20b Thick screw part 21 Flange part 25 Small nut (female screw part)
26 Large nut (female screw part)
27 Scale 35 Leg 37 First stopper member (stopper means)
38 Second stopper member (stopper means)

Claims (6)

One plate-shaped deck board is arranged on the upper surface side, or a plurality of plate-shaped deck boards are arranged in parallel, and one or more plate-shaped base boards are arranged in parallel with the deck board on the lower surface side. A rectangular mounting surface formed by fixing the deck board and the base board to the upper and lower surfaces of a plurality of block members arranged on both end sides in the longitudinal direction and in the center thereof. comprises two deck board units each having,
The two deck board units are composed of a reference deck board unit and a movable deck board unit, and the reference deck board unit and the movable deck board unit are arranged in parallel on the floor surface, and the reference deck in the arrangement direction. A dimensionally variable pallet formed in which the width dimension of the board unit is longer than the width dimension of the movable deck board unit .
It is provided at least on both ends in the longitudinal direction of the deck board unit, and is rotatably extended around the axis in the unit toward the movable deck board unit side with the reference deck board unit side as the base end. A plurality of shaft rods inserted into through holes formed in the plurality of block members and having screw grooves formed on the peripheral surface at least in a predetermined range along the axial direction on the movable deck board unit side, and the movable deck. At a predetermined position on the board unit side, it has a female screw portion that is screwed into a screw groove formed on the peripheral surface of the shaft rod and is held so as not to rotate together with the rotation of the shaft rod.
The movable deck board unit that holds the female screw portion by rotating the plurality of shaft rods around the shaft is relatively separated or close to the reference deck board unit along the longitudinal direction of the shaft rod. A dimensional variable pallet characterized in that a part of the reference deck board unit is arranged in the center of the pallet as the size of the pallet changes. One plate-shaped deck board is arranged on the upper surface side, or a plurality of plate-shaped deck boards are arranged in parallel, and one or more plate-shaped base boards are arranged in parallel with the deck board on the lower surface side. A rectangular mounting surface formed by fixing the deck board and the base board to the upper and lower surfaces of a plurality of block members arranged on both end sides in the longitudinal direction and in the center thereof. Equipped with three deck board units, each with
The three deck board units are composed of a reference deck board unit arranged on one end side or both end sides of the pallet and at least one movable deck board unit, and the reference deck board unit and the movable deck board unit are on the floor. The width dimensions of the deck board units arranged in parallel on the surface and in the arrangement direction are formed so as to be different between the adjacent deck board units, and the width dimensions of the deck board units arranged in the middle in the arrangement direction are The longest variable dimensional palette
It is provided at least on both ends in the longitudinal direction of the deck board unit, and is rotatably extended around the axis in the unit toward the movable deck board unit side with the reference deck board unit side as the base end. A plurality of shaft rods inserted into through holes formed in the plurality of block members and having screw grooves formed on the peripheral surface at least in a predetermined range along the axial direction on the movable deck board unit side, and the movable deck. At a predetermined position on the board unit side, it has a female screw portion that is screwed into a screw groove formed on the peripheral surface of the shaft rod and is held so as not to rotate together with the rotation of the shaft rod.
The movable deck board unit that holds the female screw portion by rotating the plurality of shaft rods around the shaft is relatively separated or close to the reference deck board unit along the longitudinal direction of the shaft rod. A dimensional variable pallet characterized in that a part of the deck board unit is arranged in the center of the pallet as the size of the pallet changes. Of the reference deck board unit and the movable deck board unit arranged in parallel, at least one rail member fixed to the deck board unit at one end and extended toward the deck board unit at the other end is provided.
The dimensionally variable pallet according to claim 1 or 2 , wherein the deck board unit to which the rail member is not fixed is slidable along the rail member. A plurality of legs provided on the back surface of the plurality of deck board units and forming a predetermined gap between the plurality of deck board units and the floor surface are provided.
The dimension according to any one of claims 1 to 3 , wherein a fork insertion portion into which a lifter fork can be inserted is formed between the plurality of legs on all four sides. Variable palette. A long intermediate member extending along the longitudinal direction of the deck board and having the shaft rod inserted in a direction orthogonal to the longitudinal direction between a plurality of adjacent deck board units, and the deck board unit. And a stopper means for limiting the moving distance of the intermediate member along the shaft rod.
The dimensional variable pallet according to any one of claims 1 to 4 , wherein the gap dimension between the deck board unit and the intermediate member is made equal to or less than a predetermined dimension by the stopper means. The dimensional variable pallet according to any one of claims 1 to 5 , wherein a scale is marked on the shaft rod.

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