JP7265252B2 - Pallet supporter - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet supporter for stacking a plurality of pallets vertically spaced apart to be used for cargo handling work by a forklift or the like.

Conventionally, pallets used for loading and unloading work by forklifts, etc., are loaded with cargo on the top surface, and the forks of the forklift, etc. can be pulled out and inserted into the fork pockets provided on the sides. For example, it is possible to improve the efficiency of cargo handling operations such as loading and unloading of cargo to and from transport equipment such as transport trucks, and loading and unloading of cargo to and from warehouses and yards.

In such a pallet, when a plurality of loads are piled high on the upper surface and the position of the center of gravity becomes high, the balance of the loads stacked above tends to be lost, and there is a risk that the load may collapse during cargo handling work. There is a risk that the cargo placed in the upper part of the container will not be able to withstand the load of the cargo stacked above, and will be crushed and damaged.

Therefore, there is known a pallet supporter that allows two pallets loaded with cargo at appropriate heights to be stacked vertically apart from each other. For example, the pallet supporter disclosed in Patent Document 1 includes a pair of gate-shaped side frame members and a pair of connecting members that connect the pair of side frame members. It is an assembly type metal pallet supporter in which U-shaped mounting pieces are provided at the lower ends of the pillars. This pallet supporter has a pair of gate-shaped side frame members at the upper ends thereof, on which the upper pallet can be placed. By partially covering the corners of the pallet, it is fitted to the side surface of the lower pallet. In addition, the side frame members that are erected by being attached to the side surfaces of the lower pallet are connected to each other by a pair of connecting members at the upper ends of the pillars, so that the pallet and the pallet supporter are integrated to form a substantially cubic shape. The shape is formed, and the supporting strength of the upper pallet is secured.

Japanese Utility Model No. 51-158063 (page 3, FIG. 1)

In the pallet supporter of Patent Document 1, the mounting pieces provided at the lower ends of the columns of the side frame members are fitted so as to cover the corners of the pallet using part of the inner surface of the fork pocket, thereby enabling cargo handling. Although the side frame members can be attached without interfering with the use of the fork pockets during work, the side frame members are attached to the side surfaces of the pallet that are perpendicular to the side surface of the pallet that has the fork pockets (left and right side surfaces in the fork insertion direction). Part of the piece is exposed. Therefore, when the pallet moves during cargo handling work, the mounting piece may come into contact with other pallets placed around the pallet, cargo, or the inner wall of transportation equipment such as a container of a transportation truck, resulting in damage to the contact point. . Further, if the side frame members are displaced or tilted due to contact of the mounting pieces with the surroundings, there is a risk that the support of the upper pallet may become unstable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pallet supporter capable of preventing the side frame members from coming into contact with the surroundings as the pallet moves.

In order to solve the above problems, the pallet supporter of the present invention includes:
It comprises two side frame members attached to face the side surface of the lower pallet having fork pockets, and a connecting member connecting the two side frame members to each other, and the upper pallet is placed above the connecting member. A pallet supporter that can be placed,
Each of the two side frame members includes a pair of vertically extending pillars, an upper connecting rod that horizontally connects the upper ends of the pillars, and a lower connecting rod that horizontally connects the lower ends of the pillars. It has a brace-like reinforcing rod that connects the upper connecting rod and the lower connecting rod while intersecting in the vertical direction, and two on each side of the lower pallet. Two mounting pieces to be inserted into the fork pockets are provided so as to be narrower than the width of both ends of the side surface of the lower pallet ,
The connecting members include a pair of front and rear connecting rods extending in the front-rear direction, a front connecting rod connecting the front ends of the front and rear connecting rods to each other in the left-right direction, and a rear part connecting the rear ends of the front-to-back connecting rods to each other in the left-right direction. a connecting rod and a brace-like reinforcing rod configured in a substantially rectangular frame shape and connecting the front connecting rod and the rear connecting rod while intersecting in the front-rear direction, and the two side frame members. Each of the upper ends of the four columns has an inserting portion that can be inserted from above,
Furthermore, the connecting member is provided with rectangular placement plates projecting outward from the columns at the four corners, and all of the placement plates are arranged outside the columns to prevent the upper pallet from moving in the horizontal direction. A rising piece formed in an L-shape in top view for regulation is provided along the outer peripheral edge of the mounting plate ,
Each mounting piece provided on the side frame member has a plate-like portion having a length equal to or longer than half of the horizontal dimension of the inner upper surface of the fork pocket and capable of coming into contact along the inner upper surface; An inward integral U-shaped part composed of three members: one hanging piece extending downward from the outer end of the plate-like portion and one lower plate-like portion extending along the inner and lower surfaces of the fork pocket from the lower end of the hanging piece. It is characterized by being configured in the shape of
According to this feature, the side frame members are attached to the inside of both ends of the side surfaces of the lower pallet by inserting the mounting pieces into the fork pockets, so that the side surfaces perpendicular to the side surfaces having the fork pockets to which the side frame members are attached. Since the side frame members are not exposed as a whole, it is possible to prevent the side frame members from coming into contact with the surroundings as the pallet moves during cargo handling work.

The attachment pieces are characterized in that they are provided inside the support columns so as to face each other.
According to this feature, by arranging the pair of struts on the outside of the mounting piece inserted into the fork pocket, in other words, in the vicinity of the fork pocket, the entire side surface perpendicular to the side surface having the fork pocket to which the side frame member is mounted is mounted. And since the side frame members are not exposed at the corners of the lower pallet, it is possible to further prevent the side frame members from coming into contact with the surroundings as the pallet moves during cargo handling work.

The post is characterized in that the lower end thereof is arranged above the bottom surface of the lower pallet when the mounting piece is inserted into the fork pocket.
According to this feature, the lower end of the post is prevented from directly contacting the floor surface, the ground, or the like, so that the state in which the mounting piece is inserted into the fork pocket is stably maintained.

FIG. 4 is a perspective view showing how the pallet supporter according to the first embodiment of the present invention is attached to the pallet; FIG. 4 is a side view of the pallet supporter in Embodiment 1 attached to the pallet, viewed from the side having the fork pocket. FIG. 4 is a side view of the pallet supporter in Embodiment 1 attached to the pallet, viewed from the side perpendicular to the side having the fork pocket. FIG. 4 is a perspective view showing a procedure for attaching the pallet supporter to the pallet in Embodiment 1; FIG. 4 is a perspective view showing a procedure for attaching the pallet supporter to the pallet in Embodiment 1; 4 is a perspective view showing a state in which a pallet is placed above the pallet supporter in Embodiment 1. FIG. (a), (b) is a figure which shows the mode of the cargo-handling operation|work of the pallet stacked by the pallet supporter. FIG. 10 is a perspective view showing how the pallet supporter in Example 2 of the present invention is attached to the pallet;

A form for implementing a pallet supporter according to the present invention will be described below based on an embodiment.

A pallet supporter according to a first embodiment will be described with reference to FIGS. 1 to 7. FIG. In the following description, left and right sides of the pallet supporter are defined as viewed from the front side of FIG.

As shown in FIG. 1, a pallet supporter 1 according to the present invention is a prefabricated metal plate attached to a lower pallet P1 (hereinafter simply referred to as pallet P1) used for cargo handling work by a forklift or the like. By placing the upper pallet P2 (hereinafter simply referred to as the pallet P2) above the pallet supporter 1, the two pallets P1 and P2 are spaced apart vertically. It can be stacked (see Fig. 6).

The pallets P1 and P2 are resin pallets of the same configuration, and have a substantially square shape when viewed from above. A pair of left and right fork pockets 110, 110 penetrating in the front-rear direction are provided on the side surfaces 101, 101, and no fork pockets are provided on the left and right side surfaces 102, 102.例文帳に追加2, the inner peripheral surface of the fork pocket 110 includes an inner upper surface 110a, an inner lower surface 110b, an inner lateral surface 110c, an inner lateral surface 110d, and an inner surface 110d. an inner angled surface 110e inclined between the left-right direction outer end of the inner lower surface 110b and the lower end of the inner side surface 110c, an inner angled surface 110f inclined between the left-right direction inner end of the inner lower surface 110b and the lower end of the inner side surface 110c; consists of The opening edge of the fork pocket 110 includes a tapered surface 111b continuing to the inner lower surface 110b, a tapered surface 111c continuing to the inner side surface 110c, a tapered surface 111d continuing to the inner side surface 110d, and a tapered surface continuing to the inner angular surface 110e. A tapered surface 111f continuous with 111e and an inner angle surface 110f is formed, and these tapered surfaces function as guides to facilitate insertion of the fork into the fork pocket 110. As shown in FIG.

As shown in FIGS. 1 to 3, the pallet supporter 1 includes side frame members 2, 2 attached to face front and rear side surfaces 101, 101 of a pallet P1, and upper ends of the side frame members 2, 2. and a connecting member 3 that connects to each other. Since the side frame members 2, 2 have the same configuration, the side frame member 2 attached to the front side surface 101 of the pallet P1 will be described, and the description of the side frame member 2 attached to the rear side surface 101 will be omitted. .

As shown in FIGS. 2 and 3, the side frame member 2 includes a pair of vertically extending struts 20, 20, an upper connecting rod 21 connecting upper ends of the struts 20, 20 in the left-right direction, and a strut. A lower connecting rod 22 that connects the lower end portions of 20 and 20 to each other in the horizontal direction, and a brace that is configured in a substantially rectangular frame shape and connects the upper connecting rod 21 and the lower connecting rod 22 while intersecting in the vertical direction. Structural strength is enhanced by the reinforcing rods 23 having a shape. Further, a pair of left and right mounting pieces 24 to be inserted from the front into fork pockets 110, 110 provided on the front side surface 101 of the pallet P1 are provided inside the lower ends of the pillars 20, 20 in the left-right direction and below the lower connecting rod 22. , 24 are provided. The column 20 is formed of a hollow quadrangular column, and an insertion portion 34 of the connecting member 3, which will be described later, can be inserted from above into an opening 20a at the upper end of the column (FIGS. 4 and 4). 5).

Next, the mounting pieces 24, 24 will be explained. Since the mounting pieces 24, 24 have substantially the same configuration, the mounting piece 24 inserted into the right fork pocket 110 on the front side surface 101 of the pallet P1 will be described, and the mounting piece 24 inserted into the left fork pocket 110 will be described. A description of the piece 24 is omitted.

As shown particularly in the enlarged portion of FIG. 2, the mounting piece 24 is formed by bending a metal plate to form an upper plate portion extending substantially horizontally along the inner upper surface 110a of the fork pocket 110. 24a, a hanging plate portion 24b as a hanging piece extending downward from the right end of the upper plate portion 24a, and a lower plate portion extending substantially horizontally along the inner lower surface 110b of the fork pocket 110 from the lower end of the hanging plate portion 24b. It is formed in a substantially U-shape when viewed from the side from the lower plate portion 24c. The upper plate portion 24a extends more than half of the inner upper surface 110a of the fork pocket 110. As shown in FIG. That is, the lateral dimension L1 of the upper plate portion 24a is set to be at least half the lateral dimension L2 of the inner upper surface 110a of the fork pocket 110 (L1≧L2×1/2). Further, the lateral dimension L3 of the lower plate portion 24c is formed to be shorter than the lateral dimension L1 of the upper plate portion 24a (L1>L3). Furthermore, the longitudinal dimension L4 (see FIG. 3) of the mounting piece 24 is preferably longer than the vertical dimension L5 between the inner upper surface 110a and the inner lower surface 110b of the fork pocket 110 (L4>L5). 2, the longitudinal dimension L4 of the mounting piece 24 is at least twice as long as the vertical dimension L5 of the fork pocket 110. As shown in FIG.

The upper surface of one end (front end) of the upper plate portion 24a of the mounting piece 24 is fixed by welding to the lower surface of the lower connecting rod 22, and the lateral outer side surface of one end (front end) of the hanging plate portion 24b is It is held by being welded and fixed to the inner side surfaces in the left-right direction of the lower ends of the pillars 20 , 20 .

When the mounting piece 24 is inserted into the fork pocket 110, the upper surface of the other end (rear end) of the upper plate portion 24a contacts the inner upper surface 110a of the fork pocket 110, and the other end of the lower plate portion 24c The lower surface of the portion (rear end portion) is in contact with the inner lower surface 110b of the fork pocket 110, and the mounting piece 24 is accommodated within the fork pocket 110 when viewed from the front-rear direction. That is, the strut 20 is arranged in the vicinity of the fork pocket 110, and the entire side frame member 2 is arranged inside the left and right ends of the front side surface 101 of the pallet P1 in the left-right direction.

Further, when the mounting piece 24 is inserted into the fork pocket 110, the left-right outer side surface of the hanging plate portion 24b is spaced leftward from the left-right outer inner side surface 110c of the fork pocket 110. As shown in FIG. A laterally outer corner portion 24d of the attachment piece 24 formed by the hanging plate portion 24b and the lower plate portion 24c is positioned at a boundary portion between the inner lower surface 110b of the fork pocket 110 and the laterally outer inner corner surface 110e. are doing.

Further, when attaching the side frame member 2 to the pallet P1, the attachment is performed along the tapered surface 111e that is continuous with the inner angular surface 110e on the outer side in the left-right direction in one of the fork pockets 110, 110 provided on the side surface 101 of the pallet P1. The corner 24d of the piece 24 is guided. Accordingly, the corner portion 24d of the mounting piece 24 can be inserted in a state of being aligned with the boundary portion between the inner lower surface 110b of the fork pocket 110 and the inner angular surface 110e on the outer side in the left-right direction. In the side frame member 2 of this embodiment, the lateral dimension between the corners 24d, 24d of the mounting pieces 24, 24 is the same as the inner and lower surfaces 110b of the fork pockets 110, 110 provided on the side surface 101 of the pallet P1. Since the lateral dimension between the boundary portion with the outer inner angular surface 110e is substantially the same, by inserting the mounting piece 24 into the fork pocket 110 with the corner portion 24d thereof aligned, the other fork can be removed. The corner 24d of the mounting piece 24 is also aligned with the pocket 110. As shown in FIG.

In this way, when the mounting pieces 24, 24 are inserted into the fork pockets 110, 110, the mounting pieces 24, 24 are attached by the inner angular surfaces 110e, 110e on the laterally outer sides of the fork pockets 110, 110 which are inclined upward. Since the movement to the left-right direction outside is respectively restricted, the positional deviation of the side frame member 2 to the left-right direction with respect to the pallet P1 is prevented.

Also, as particularly shown in FIG. 3, in a state where the mounting pieces 24, 24 are inserted into the fork pockets 110, 110, the facing surface 20c of the post 20 and the lower connecting surface 20c of the post 20 are connected to the front and rear side surfaces 101, 101 of the pallet P1. The opposing surfaces 22a of the rods 22 are substantially in contact with each other.

Also, the vertical dimension between the lower surface of the lower plate portion 24c of the mounting piece 24 and the lower end 20b of the post 20 is larger than the vertical dimension between the lower surface of the lower plate portion 24c of the mounting piece 24 and the bottom surface 103 of the pallet P1. Since the mounting pieces 24, 24 are small, the lower ends of the side frame members 2, that is, the lower ends 20b, 20b of the struts 20, 20 are arranged above the bottom surface 103 of the pallet P1 when the mounting pieces 24, 24 are inserted into the fork pockets 110, 110. be.

As shown in FIGS. 1 to 3, the connecting member 3 includes a pair of front and rear connecting rods 30, 30 extending in the front-rear direction, and a front connecting rod connecting front ends of the front and rear connecting rods 30, 30 in the left-right direction. 31 and a rear connecting rod 32 that connects the rear end portions of the front and rear connecting rods 30, 30 to each other in the left-right direction to form a substantially rectangular frame shape. Structural strength is enhanced by brace-like reinforcing rods 33 that are connected while intersecting the direction.

As shown in FIGS. 4 and 5, at the front and rear ends of the front and rear connecting rods 30, 30 are provided at the upper ends of the four pillars 20 that extend downward and constitute the front and rear side frame members 2, 2. Insertion portions 34 are provided to be inserted into the openings 20a from above. The fitting portion 34 is fitted into the opening 20a of the post 20 by a so-called fitting type.

Rectangular mounting plates 35 projecting outward in the left-right direction are provided at the front and rear end portions of the front and rear connecting rods 30 , 30 . In addition, a pair of rising pieces 35a, 35a are formed on the outer peripheral edge of the placing plate 35 in an L-shape when viewed from above, and the corners of the pallet P2 placed above the pallet supporter 1 are placed on each placing plate. By being placed on the plate 35, the vertical movement of the pallet P2 is restricted by the rising pieces 35a, 35a, so that the pallet P2 can be prevented from being shifted or dropped (see FIG. 6). .

Next, a procedure for pallet handling work using the pallet supporter 1 will be described. Here, a case where the pallets P1 and P2 stacked by the pallet supporter 1 are loaded into a container C of a transportation truck by a forklift will be described as an example.

First, as shown in FIG. 4, the mounting pieces 24, 24 are inserted into the fork pockets 110, 110 of the front and rear side surfaces 101, 101 of the pallet P1, respectively, and the side frame members 2, 2 are erected. Next, as shown in FIG. 5, the inserting portions 34 of the connecting member 3 are inserted from above into the openings 20a at the upper ends of the four support columns 20 constituting the side frame members 2, 2, and face each other. The side frame members 2, 2 are connected integrally to complete the mounting of the pallet supporter 1 to the pallet P1. At this time, the side frame members 2, 2 are in a state in which the opposing surfaces 20c, 20c of the pillars 20, 20 and the opposing surface 22a of the lower connecting rod 22 are substantially in contact with the front and rear side surfaces 101, 101 of the pallet P1. , the side frame members 2, 2 are prevented from tilting in the front-rear direction with respect to the pallet P1.

Next, the cargo B is loaded on the upper surface 100 of the pallet P1 at an appropriate height. At this time, as shown in FIG. 3, the side frame members 2, 2 are not attached to the left and right side surfaces 102, 102 of the pallet P1. It is easy to load the cargo B. Since the side frame members 2, 2 do not interfere with the upper surface 100 of the pallet P1, the above-described pallet supporter 1 can be attached after loading the cargo B on the upper surface 100 of the pallet P1. .

Next, the forks of a forklift (not shown) are inserted into the fork pockets 110, 110 of the pallet P2 on which the cargo B is loaded on the upper surface 100, lifted up and transported, and the pallet P2 is placed above the pallet supporter 1 attached to the pallet P1. are placed and stacked (see FIG. 6).

Next, the forks of a forklift are inserted into the fork pockets 110, 110 of the pallet P1, and the pallets P1, P2 stacked by the pallet supporter 1 are lifted up together. At this time, by arranging the forks of the forklift to be inserted into the fork pockets 110, 110 of the pallet P1 below the upper plate portions 24a, 24a, the pallet supporter 1 can be moved together with the pallet P1 through the upper plate portions 24a, 24a. Since it can be lifted directly, the pallet P2 placed above the pallet supporter 1 can be stably supported. When the pallet P1 is lifted directly by bringing the forks of the forklift truck into contact with the inner upper surfaces 110a, 110a of the fork pockets 110, 110, the load from the pallet supporter 1 and the pallet P1 (upper pallet supporter 1) is applied to the forks. (including the load of the placed pallet P2) is applied to the inner and lower surfaces 110b, 110b of the fork pockets 110, 110 that come into contact with the lower surfaces of the lower plate portions 24c, 24c of the mounting pieces 24, 24 of the side frame members 2, respectively. Since the load from the pallet supporter 1 is applied, stress is generated in the opposite vertical direction between the inner upper surfaces 110a, 110a and the inner lower surfaces 110b, 110b of the fork pockets 110, 110, and deformation such as bending occurs in the fork pockets 110, 110. There is fear. The pallet supporter 1 of this embodiment can directly lift the pallet P1 together with the pallet P1 via the upper plate portions 24a, 24a extending along the inner upper surfaces 110a, 110a of the fork pockets 110, 110. The load from the pallet supporter 1 acting on the inner and lower surfaces 110b, 110b of the fork pockets 110, 110 is distributed from the inner upper surfaces 110a, 110a of the fork pockets 110, 110 to the forks via the upper plate portions 24a, 24a. , stress concentration on the inner and lower surfaces 110b, 110b of the fork pockets 110, 110 is suppressed to prevent deformation of the pallet P1. The placed pallet P2 can be stably supported. Furthermore, the upper plate portions 24a, 24a are in contact with the plate surfaces along the inner upper surfaces 110a, 110a of the fork pockets 110, 110, so that the fork pockets 110, 110 can be reinforced by the upper plate portions 24a, 24a, and the contact area is reduced. is ensured to be large, and stress concentration on the inner upper surfaces 110a, 110a of the fork pockets 110, 110 is suppressed.

Next, the stacked pallets P1 and P2 are transported integrally by the pallet supporter 1 and placed on the floor near the entrance of the container C of the transport truck (see FIG. 7(a)). At this time, the side frame members 2, 2 are arranged laterally inward of the left and right ends of the front and rear side surfaces 101, 101 of the pallet P1 in the forward and rearward direction of the forklift and the right side surface 102 of the pallet P1. can be placed close to the inner wall of the container C. The pallets P1 and P2 placed on the floor near the entrance of the container C are moved to the back of the container C using a pallet loader (not shown) that is inserted into a groove formed on the floor of the container C. be able to.

In addition, by placing the pallets P1 and P2 stacked by other pallet supporters 1 in a state in which the left side surface 102 of the pallet P1 is brought close to the inner wall of the container C, the pallet supporter 1 stacks the pallets in the container C. The stacked pallets P1 and P2 can be arranged side by side in two rows on the left and right, and the space in the vertical and horizontal directions within the container C can be effectively used (see FIG. 7(b)).

In this way, the pallet supporter 1 of this embodiment has the mounting pieces 24, 24 inserted into the fork pockets 110, 110, and the side frame members 2, 2 are positioned wider than the left and right ends of the front and rear side surfaces 101, 101 of the pallet P1. Since the side frame members 2, 2 are not exposed on the entirety of the left and right side surfaces 102, 102 orthogonal to the front and rear side surfaces 101, 101 of the pallet P1 to which the side frame members 2, 2 are attached, cargo handling work is facilitated. It is possible to prevent the side frame members 2, 2 from coming into contact with the surroundings as the pallet P1 moves.

Further, by arranging the forks of the forklift to be inserted into the fork pockets 110, 110 of the pallet P1 in the cargo handling work below the upper plate portions 24a, 24a, the pallet supporter can be operated together with the pallet P1 via the upper plate portions 24a, 24a. 1 can be directly lifted, the load from the pallet supporter 1 can be applied to the forks via the upper plate portions 24a, 24a, and the pallet P2 placed above the pallet supporter 1 can be stably supported. be able to.

In addition, since the upper plate portion 24a extends more than half of the inner upper surface 110a of the fork pocket 110, the fork can be easily arranged below the upper plate portions 24a, 24a, and the upper plate relative to the inner upper surface 110a of the fork pocket 110 can be easily arranged. The contact area of the portions 24a, 24a can be secured, and the pallet P2 placed above the pallet supporter 1 can be stably supported.

In addition, since the mounting piece 24 includes the hanging plate portion 24b extending downward from the upper plate portion 24a, the structural strength of the mounting piece 24 is enhanced, and the horizontal movement of the fork is restricted by the hanging plate portion 24b. can do.

Further, by inserting the mounting piece 24 into the fork pocket 110, the upper plate portion 24a and the lower plate portion 24c can be brought into contact with the inner upper surface 110a and the inner lower surface 110b of the fork pocket 110, respectively. , 2 can be stably attached to the front and rear sides 101, 101 of the pallet P1.

Moreover, since the mounting piece 24 is formed in a substantially U-shape in a side view from the upper plate portion 24a, the hanging plate portion 24b, and the lower plate portion 24c, the structural strength is high. Furthermore, since the mounting piece 24 has the upper plate portion 24a and the hanging plate portion 24b arranged and fixed by welding along the corner formed by the support 20 and the lower connecting rod 22, the structural strength of the mounting piece 24 is increased. further enhanced.

Further, since the mounting piece 24 is formed in a substantially U-shape when viewed from the side, it is difficult to prevent the use of the fork pocket 110 when the mounting piece 24 is inserted into the fork pocket 110 . Further, the lateral dimension L3 of the lower plate portion 24c is formed to be shorter than the lateral dimension L1 of the upper plate portion 24a, so that the lower plate portion 24c does not hinder insertion of the fork into the fork pocket 110 easily.

Also, the mounting pieces 24, 24 are provided opposite to each other in the left-right direction of the pair of struts 20, 20, and the struts 20, 20 are inserted into the fork pockets 110, 110, respectively. In other words, by being arranged in the vicinity of the fork pockets 110, 110, not only the entire left and right side surfaces 102, 102 of the pallet P1, but also the corners of the pallet P1 including the left and right ends of the front and rear side surfaces 101, 101 of the pallet P1. Since the side frame members 2, 2 are not exposed even at the pallets P1, it is possible to further prevent the side frame members 2, 2 from coming into contact with the surroundings as the pallet P1 moves during cargo handling work.

Further, the side frame members 2, 2 are arranged such that the lower ends 20b, 20b of the struts 20, 20 are arranged above the bottom surface 103 of the pallet P1 with the mounting pieces 24, 24 inserted into the fork pockets 110, 110. As a result, the mounting pieces 24, 24 are stably maintained in the state in which they are inserted into the fork pockets 110, 110, since direct contact with the floor surface, the ground, etc. of the container C is prevented. Therefore, the side frame members 2 are prevented from being laterally displaced from the pallet P1 and tilting in the longitudinal direction, and the support strength of the pallet P2 by the pallet supporter 1 can be ensured.

Further, the connecting member 3 is formed in a substantially rectangular frame shape, and by inserting the fitting portions 34 from above into the openings 20a at the upper ends of the four support columns 20 constituting the side frame members 2, 2, respectively. Since the side frame members 2, 2 facing each other are integrally connected by the substantially rectangular frame-shaped connecting member 3, distortion and twisting of the side frame members 2, 2 with respect to the connecting member 3 are corrected, and the pallet P1 and the pallet Together with the supporter 1, it is easy to form a substantially cubic shape, and the support strength for the pallet P2 can be exhibited reliably. In addition, since the fitting portion 34 is fitted into the opening 20a of the column 20 in a so-called spigot-type manner, there is no need to use fasteners such as screws, and the assembling workability is good.

Further, since the pallet supporter 1 is an assembly type composed of a pair of side frame members 2, 2 and a connecting member 3, it can be stored compactly when not in use.

Next, a pallet supporter according to a second embodiment will be described with reference to FIG. The same components as those shown in the above embodiments are denoted by the same reference numerals, and overlapping descriptions are omitted.

A pallet supporter 201 according to the second embodiment will be described. As shown in FIG. 8, the side frame member 202 of the pallet supporter 201 is composed of a pair of vertically extending struts 220, 220 and a connecting rod 221 connecting the upper ends of the struts 220, 220 to each other in the horizontal direction. It is configured in a substantially rectangular frame shape. Further, a pair of left and right mounting pieces 24, which are inserted from the front into fork pockets 110, 110 provided on the front side surface 101 of the pallet P1, are provided inside the lower ends of the pillars 220, 220 in the left-right direction and below the connecting rod 221. 24 are provided. The top and bottom dimensions of the support columns 220 and 220 of the side frame members 202 and the upper ends of the connecting rods 221 are set so as not to protrude above the upper surface 100 of the pallet P1.

The connecting member 203 has a pair of substantially rectangular frame-like legs 234 , 234 extending downward from the front and rear ends of the front and rear connecting rods 30 , 30 . In addition, by inserting the insertion portions formed at the lower ends of the legs 234, 234 into the openings at the upper ends of the four pillars 220 constituting the front and rear side frame members 202, 202 from above, respectively, the connection is achieved. The side frame members 202 , 202 facing each other are integrally connected by the member 203 . The inserting portions formed at the lower ends of the legs 234, 234 are inserted into the openings of the struts 220 in a spigot-type manner, and have substantially the same configuration as that of the first embodiment (see FIGS. 4 and 5). Therefore, illustration is omitted.

According to this, since the upper ends of the pillars 220 and 220 of the side frame members 202 and the connecting rod 221 do not protrude above the upper surface 100 of the pallet P1, the side frame members 202 and 202 are attached to the pallet P1 when not in use. Can be stacked and stored compactly. Further, when assembling the pallet supporter 201, only the side frame members 202, 202 need to be connected by the connecting member 203, and the assembling workability is good.

Note that the connecting member 203 may have the legs 234, 234 separately configured. Also, the leg portions 234, 234 may be configured to be foldable and held parallel to the front and rear connecting rods 30, 30. As shown in FIG.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and any changes or additions within the scope of the present invention are included in the present invention. be

For example, in the above embodiment, when the mounting piece 24 is inserted into the fork pocket 110, the upper surface of the upper plate portion 24a contacts the inner upper surface 110a of the fork pocket 110, and the lower surface of the lower plate portion 24c contacts the fork pocket 110. Although it has been described as contacting the inner lower surface 110b, the vertical dimension between the upper surface of the upper plate portion 24a and the lower surface of the lower plate portion 24c of the mounting piece 24 is larger than the vertical dimension L5 of the fork pocket 110 (see FIG. 2). It can also be made slightly larger. According to this, the mounting piece 24 is inserted while being vertically compressed between the inner upper surface 110a of the fork pocket 110 and the tapered surface 111b continuous with the inner lower surface 110b. The side frame members 2, 2 can be stably attached by the front and rear side surfaces 101, 101 of the pallet P1. The mounting piece may be press-fitted in the fork pocket 110 by elastic restoring force in the left and right directions.

The lateral dimension between the corners 24d, 24d of the mounting pieces 24, 24 is configured to be smaller than the lateral dimension between the boundary portion between the inner bottom surface 110b and the laterally outer inner angular surface 110e of the fork pockets 110, 110. may have been In this case, the corner 24d of one of the mounting pieces 24 of the side frame members 2, 2 is inserted into one of the fork pockets 110, 110 passing through the side surfaces 101, 101 of the pallet P1 in the front-rear direction. By doing so, the side frame members 2, 2 can be attached to the front and rear side surfaces 101, 101 of the pallet P1 so as to face each other.

Further, in the above-described embodiment, the attachment piece is described as one in which the upper plate portion and the hanging plate portion are arranged along the corner formed by the support column and the lower connecting rod and fixed by welding. However, at least either the upper plate portion or the hanging plate portion should be arranged and fixed along the support or the lower connecting rod. Incidentally, the fixing method is not limited to welding fixing, and fixing with screws or the like may also be used.

Also, the mounting piece may have any shape as long as it can be inserted into the fork pocket. In the folded state, the upper plate portion may be in contact with the inner upper surface of the fork pocket, and the lower end of the hanging plate portion may be in contact with the inner lower surface of the fork pocket.

Further, in the above-described embodiment, the mounting piece is inserted into the fork pocket, and the upper plate portion is in contact with the inner upper surface of the fork pocket. It is sufficient if the upper surface of the upper plate portion can contact the inner upper surface of the fork pocket when the fork inserted downward is lifted up, and the upper surface of the upper plate portion is below the inner upper surface of the fork pocket except during cargo handling may be spaced apart.

Also, in the above-described embodiment, the mounting piece is inserted into the fork pocket and is accommodated in the fork pocket when viewed from the front-rear direction. It may extend outside. In this case, it is preferable that the extending portion of the mounting piece extending outside the fork pocket does not protrude beyond the left and right ends of the front and rear sides of the pallet.

Moreover, in the above-described embodiment, the mounting pieces are arranged on the inner side of the columns in the left-right direction.

Further, although the side frame member in the above-described embodiment has been described as having a substantially rectangular frame shape with a pair of pillars, the present invention is not limited to this. good too.

Moreover, the connecting member is not limited to being formed in the shape of a rectangular frame, and may be, for example, a member that connects side frame members with a pair of rod-shaped members. Furthermore, the connecting member is not limited to having inserting portions that can be inserted from above into the openings at the upper ends of the pillars, and may be connected to the pillars using connecting fittings or the like.

Further, the pallet supporter is not limited to being made of metal, and may be made of, for example, resin as long as structural strength can be ensured.

Further, the pallet is not limited to one made of resin, and may be, for example, a wooden pallet, and the fork pockets may be provided on both the front and rear sides and the left and right sides of the pallet. Further, the fork pocket may be formed in a rectangular shape without an inclined inner angle surface, or the opening edge of the fork pocket may not be provided with a tapered surface for guiding.

1 pallet supporter 2 side frame member 3 connecting member 20 strut 20a opening 20b lower end 24 mounting piece 24a upper plate portion (plate-like portion)
24b hanging plate part (hanging piece)
24c lower plate portion (lower plate-like portion)
24d corner portion 34 insertion portion 101 side surface (side surface having fork pocket)
102 side (side perpendicular to side with fork pocket)
110 Fork pocket 110a Inner upper surface 110b Inner lower surface 110c, 110d Inner surface 110e, 110f Inner angular surface 111b-111f Tapered surface 201 Pallet supporter 202 Side frame member 203 Connecting member 220 Support 234 Leg P1 Lower pallet P2 Upper pallet

Claims (3)

It comprises two side frame members attached to face the side surface of the lower pallet having fork pockets, and a connecting member connecting the two side frame members to each other, and the upper pallet is placed above the connecting member. A pallet supporter that can be placed,
Each of the two side frame members includes a pair of vertically extending pillars, an upper connecting rod that horizontally connects the upper ends of the pillars, and a lower connecting rod that horizontally connects the lower ends of the pillars. It has a brace-like reinforcing rod that connects the upper connecting rod and the lower connecting rod while intersecting in the vertical direction, and two on each side of the lower pallet. Two mounting pieces to be inserted into the fork pockets are provided so as to be narrower than the width of both ends of the side surface of the lower pallet ,
The connecting members include a pair of front and rear connecting rods extending in the front-rear direction, a front connecting rod connecting the front ends of the front and rear connecting rods to each other in the left-right direction, and a rear part connecting the rear ends of the front-to-back connecting rods to each other in the left-right direction. a connecting rod and a brace-like reinforcing rod configured in a substantially rectangular frame shape and connecting the front connecting rod and the rear connecting rod while intersecting in the front-rear direction, and the two side frame members. Each of the upper ends of the four columns has an inserting portion that can be inserted from above,
Furthermore, the connecting member is provided with rectangular placement plates projecting outward from the columns at the four corners, and all of the placement plates are arranged outside the columns to prevent the upper pallet from moving in the horizontal direction. A rising piece formed in an L-shape in top view for regulation is provided along the outer peripheral edge of the mounting plate ,
Each mounting piece provided on the side frame member has a plate-like portion having a length equal to or longer than half of the horizontal dimension of the inner upper surface of the fork pocket and capable of coming into contact along the inner upper surface; An inward integral U-shaped part composed of three members: one hanging piece extending downward from the outer end of the plate-like portion and one lower plate-like portion extending along the inner and lower surfaces of the fork pocket from the lower end of the hanging piece. A pallet supporter characterized by being configured in a shape . 2. The pallet supporter according to claim 1, wherein the mounting pieces are provided inside the support columns so as to face each other. 3. The pallet supporter according to claim 1 , wherein the lower end of the post is arranged above the bottom surface of the lower pallet when the mounting piece is inserted into the fork pocket.

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