JP4468114B2 - Pallet moving aid - Google Patents

Description

The present invention relates to a pallet moving aid for facilitating movement of an empty pallet on which no load is loaded.

  The load pallet is generally made of virgin plastic such as wood or vinyl chloride or plastic waste material so as to withstand the load of the product to be loaded, and is heavy. Usually, when a product is loaded on a pallet, it can be easily moved using a forklift or the like dedicated to pallet transportation. However, when trying to move a pallet that is not loaded with products, the pallet alone usually has a weight of about 20 to 50 kg, and it is not easy to move it by human power alone. In particular, it is troublesome for a woman without power to move an empty pallet, which is dangerous because of the weight of the pallet.

  In addition, empty pallets need to be stored by stacking or standing in multiple stages to save space when they are not needed, but at this time they are moved using a forklift for intensive movement. However, in some cases, it is necessary to move the product on a small scale and use the pallet for work in the factory. However, using a forklift is uneconomical and cumbersome.

Therefore, with respect to the industrial truck for easily moving the pallet, a pallet truck that moves by moving the lifting platform between the top plate and the floor plate of the pallet is disclosed in Patent Document 1, Patent Document 2 discloses a pallet truck that easily improves the approach of the platform, and these techniques hold the pallet parallel to the floor surface so that a small-diameter load wheel hits the pallet. The present invention provides a pallet truck that can be moved in and out of the pallet while the pallet is stationary.
Further, Patent Document 3 discloses an unmanned traveling vehicle that can perform straight, oblique, and traverse with two drive wheels in a state in which the floor plate of the pallet is parallel to the ground.

  On the other hand, as a general auxiliary tool for moving a pallet, Patent Document 4 discloses a cart provided with a free caster that can move in all directions while a floor plate of the pallet is parallel to the ground. Further, Patent Document 5 discloses a triangular carriage for a round container having three free casters, and Patent Document 6 discloses an auxiliary tool with a caster capable of fixing a load such as a cardboard box or a container. Furthermore, Patent Document 7 discloses an auxiliary tool including a movable portion in which the stacking portion and the movable portion can freely rotate around the support portion. Further, Patent Document 8 discloses an assisting device for moving a handicapped person that includes a wheel that can be rotated and that allows a handicapped person to move in any direction, and any of these can move in any direction. However, it is not an auxiliary tool suitable for easily fixing and moving an empty pallet during a moving operation.

U.S. Pat. No. 2,274,164 Japanese Patent Publication No. 35-6068 JP 60-148774 A Utility Model Registration No. 3021013 Japanese Utility Model Publication No. 7-31559 JP 2003-291818 A JP 2000-198446 A Utility Model Registration No. 3089409

  When moving a pallet with no cargo loaded in a narrow work place, if the floor plate of the pallet is parallel to the ground, it will not be easy to move because surrounding objects will interfere and In addition, since the pallet is moved by bending the waist close to the floor surface, the working posture is poor and low back pain is likely to occur. Furthermore, since the pallet main body is displaced on the auxiliary tool, the pallet main body is dropped from the auxiliary tool, so that the operation of moving the pallet becomes complicated and time is required.

Thus, in view of the above problems, it is possible to easily move an empty pallet even in a narrow work space, even if it is difficult for a worker who cannot move a product, in a narrow work space, and the pallet is not bulky. There has been a strong demand for a moving aid that can be easily stored and moved and can be easily inserted into an empty pallet.
Therefore, the present invention is lightweight because the empty pallet is moved upright, can be easily attached to and detached from the pallet, and can stably move the empty pallet freely in any direction by one person. An object is to provide an auxiliary tool.

The auxiliary tool for pallet movement according to the present invention is characterized by the following configuration.
The auxiliary tool for pallet movement of the invention according to claim 1 of the present application is a pallet composed of a top plate on which a load is placed and a lower plate in contact with the ground, and the distance between the top plate and the lower plate is wide or narrow, A pallet moving auxiliary tool that is inserted and fixedly moved at the interval, wherein the pallet moving auxiliary tool includes a rectangular plate-shaped auxiliary tool body, and a leaf spring member fixed to the upper surface of the auxiliary tool body. The leaf spring member comprises four casters fixed to the four corners of the lower surface, and the leaf spring member has a dogleg-shaped leaf spring portion opposed to a recess inserted into the gap between the empty pallets, and the auxiliary tool body. It is characterized by comprising a leaf spring fixing part fixed to the upper surface of the above-mentioned, and the above-mentioned U-shaped leaf spring part is provided side by side toward the long side of the rectangular plate-shaped auxiliary tool body.
The auxiliary tool for moving a pallet according to a second aspect of the invention is characterized in that the leaf spring member is composed of two types of a wide or narrow width-shaped leaf spring part and a leaf spring fixing part. The leaf spring fixing portion and the narrow leaf spring fixing portion are fixed at a right angle, fixed to the upper surface of the auxiliary tool body with a screw, and the leaf spring member is rotatable by 90 degrees. And
The auxiliary tool for pallet movement of the invention according to claim 3 is configured to fix a rectangular cushioning material in the vicinity of the four casters on the lower surface along the long side of the rectangular plate-shaped auxiliary tool body, The height of the cushioning material is slightly lower than the height of the caster.
The auxiliary tool for moving a pallet according to a fourth aspect of the invention is characterized in that the cushioning material is selected from elastomers, rubbers, springs, foams, and fiber assemblies.
The auxiliary tool for pallet movement according to a fifth aspect of the present invention is characterized by having a punched hole at the end and / or the center of the rectangular plate-shaped auxiliary tool main body.
The auxiliary tool for pallet movement according to a sixth aspect of the present invention is characterized in that casters are provided at positions of intersections at which intersection lines of casters that are fixed to the four corners of the lower surface intersect.

The auxiliary tool for moving a pallet of the present invention comprises a leaf spring member in which a leaf spring member is inserted into an interval of an empty pallet and a leaf spring fixing portion fixed to the upper surface and a leaf spring fixing portion fixed to the upper surface. The leaf spring part is attached to the long side of the rectangular auxiliary tool body, so that the leaf spring member can be easily attached to and detached from the empty pallet, and the pallet is raised with a small force. And can be moved stably in all directions easily even in a narrow work space.
Further, the pallet moving auxiliary tool of the present invention is placed on the pallet or is placed substantially vertically on the ground, and the pallet moving auxiliary tool is placed in the space between the luggage placing plate and the floor side plate. The auxiliary tool in which the leaf spring member on the upper surface is inserted is grounded by a caster so that the pallet does not fall down and can be stably moved in the target direction.

The pallet is composed of a top plate for placing the load and a lower plate in contact with the ground. Usually, the pallet has a wide width of 100 to 110 mm between the top plate and the lower plate, and an interval of 80 to 90 mm. There are two types of narrow widths. When the leaf spring member is inserted into the wide or narrow interval of the pallet, the pallet moving auxiliary tool of the present invention is configured such that the wide leaf spring fixing portion and the narrow leaf spring fixing portion are perpendicular to each other. The leaf spring member is fixed at a position, fixed to the upper surface of the auxiliary tool body with a screw, and the leaf spring member can be rotated by 90 degrees. The two types of leaf spring members, the long one (L1) and the short one (L2), can be easily replaced.

The auxiliary tool for moving a pallet according to the present invention will be described with reference to the drawings.
1 is a top perspective view of a pallet movement aid according to the present invention, FIG. 2 is a bottom perspective view of the pallet movement aid according to the present invention, and FIG. 3 is a top plan view of the pallet movement aid according to the present invention. Is a bottom plan view of the auxiliary tool for pallet movement of the present invention, FIG. 5 is a sectional view taken along the line of the auxiliary tool for pallet movement of the present invention, and FIG. 6 is a partially exploded sectional view of the auxiliary tool for pallet movement of the present invention. is there.

On the upper surface of the auxiliary tool body of the auxiliary tool for pallet movement, as shown in FIG. 1, two types of leaf spring members 2 and 3 are attached symmetrically in order to distribute the force equally to the left and right. Since there are two types of gaps between the top plate on the load carrying side of the pallet made of plates and the lower plate in contact with the ground, the leaf spring member 2 for wideness is formed on the upper surface of the auxiliary tool body. A leaf spring member 3 for narrow width is provided, and they are integrally rotatable. As shown in FIG. 3, the leaf spring member 3 is attached to the upper surface so as to be rotatable by 90 degrees.

By attaching the leaf spring members 2 and 3 in a freely rotatable manner, the gap between the top plate and the lower plate of the pallet (hereinafter referred to as “pallet gap”) can be inserted corresponding to both wide and narrow widths. can do. For example, when the pallet gap is narrow, the leaf spring member 3 having a narrow width L2 is inserted. Further, in order to change the narrow width L2 of the leaf spring members 2 and 3 to the wide width L1, the central thumbscrew 4 of the leaf spring members 2 and 3 is loosened and rotated 90 degrees, and the width of the pallet gap to be moved After the adjustment, the thumbscrew 4 is tightened and fixed.

An even number of at least four casters are attached to the lower surface of the pallet moving auxiliary tool at symmetrical positions from the center. In order to disperse the weight of the pallet, it is preferable to add at least five casters, preferably with one central caster. By arranging such casters, a low center of gravity is achieved when the pallets are loaded and stabilized, and the pallet load is uniformly distributed to the casters so that the pallet moving aid is stably moved. The number of casters may be any number as long as it has one central part and four or more peripheral parts, but a total of five casters is preferable from the viewpoint of economic efficiency.
As such a caster, a free caster using a free wheel or a ball caster using a sphere can be preferably used. More preferably, the ball caster according to the latter method is suitable.

Moreover, as shown in FIG. 4 , it is preferable to fix and attach a rectangular cushioning material in the vicinity of the four casters on the lower surface along the long side of the auxiliary tool for moving the pallet . The height of the cushioning material (distance to the ground plane) is set slightly lower than the height of the caster (distance to the ground plane).
If the cushioning material is not attached, when the two casters are in contact with the floor when the pallet is set up, the auxiliary tool may move in an unintended direction, and the pallet is moved. When the casters are sometimes out of the horizontal state due to unevenness of the ground, the pallet may roll over, and the two casters may move unintentionally when lying on the pallet, which is extremely dangerous. However, by attaching the cushioning material to the above position and designing it to a height, each piece of the two cushioning materials fixed along the long side of the auxiliary tool, when the pallet can stand up, Since the two casters are in contact with the floor after standing up to a nearly vertical position in contact with the floor, there is no risk of the auxiliary tool moving in an unintended direction, and when the pallet is moved Even if the caster is out of the horizontal state due to unevenness of the pallet, the cushioning material provided along the long side of the auxiliary tool supports the pallet, so there is no risk that the pallet will roll over and the auxiliary Since each piece of the two cushioning materials fixed along the long side of the equipment can lie down in contact with the floor, the two casters may move unintentionally Since there can be moved safely palette.
The most suitable arrangement is two leaf spring members on the upper surface of the auxiliary tool body, five casters provided at the intersections where four diagonals of the four casters on the lower surface intersect , and the lower four of the casters . This is when four rectangular cushioning materials are provided in the vicinity of each caster . The cushioning material includes elastomer, rubber, springs (spring, leaf spring, disc spring, etc.), foam, fiber aggregate (felt, woven fabric, knitted fabric, nonwoven fabric, etc.) and the like.

As described above, the auxiliary tool body to which two leaf spring members , five casters and four cushioning materials are attached is easily made of virgin plastic or plastic waste material which is strong and durable, such as polyvinyl chloride. It can be molded and can be used stably for a long time even if pallet transportation is repeated. Further, as shown in FIG. 3, the auxiliary tool for moving the pallet is provided with a punching hole to such an extent that its strength is not impaired, thereby saving the material cost of the plastic, reducing the weight during movement, It serves as a handle for lifting the auxiliary tool and improves workability.

The auxiliary tool for moving a pallet according to the present invention comprises a leaf spring member having a leaf-shaped leaf spring portion opposed to a concave portion in which a leaf spring member is inserted into an interval between empty pallets, and a leaf spring fixing portion fixed to the upper surface. Since the leaf spring member is installed along the long side of the rectangular plate-shaped auxiliary tool body, the leaf spring member can be easily attached to the space between the empty pallets. Can stand. Further, the casters 7 and 8 on the lower surface of the moving auxiliary tool can support the pallet weight uniformly and in a distributed manner, and the casters are movable in all directions, so that they can be moved freely even in a narrow work space. It is possible to easily remove the auxiliary tool from the pallet after moving the empty pallet to the destination. In addition, the leaf spring member of the pallet moving auxiliary tool of the present invention has a configuration that can be rotated 90 degrees, so that the leaf spring member has a long interval (L1) with respect to two types of empty pallets. The two types of leaf spring members (L2) can be easily replaced.
Furthermore, a punching hole for reducing the weight of the auxiliary tool body can be provided. When the pallet is laid down and placed at a moving place, the cushioning material attached with the casters works on the lower surface of the pallet moving auxiliary tool to stop the unexpected movement of the pallet. Remove the auxiliary tool for moving the pallet from the pallet after laying the pallet easily. By using the pallet moving auxiliary tool of the present invention, the pallet moving operation is remarkably improved.

  Hereinafter, examples of the auxiliary tool for pallet movement according to the present invention will be described. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

Reference numeral 1 is a plastic auxiliary tool body having a rectangular plate shape in plan view, and reference numeral 2 is a pair of wide widths (width L1) attached symmetrically to the upper surface of the main body 1 with an interval of 20 cm or more. a leaf spring member, reference numeral 3 is also a leaf spring member of a narrow width (L2) of the pair mounted symmetrically with an interval of at least 20cm on the upper surface of the body 1.
As shown in FIGS. 1, 3, and 5, the leaf spring members 2 and 3 are fixed to a leaf spring portion 2-1 and 3-1, which are two types of wide or narrow leaf springs. The leaf spring fixing portion 2-2 for wide width and the leaf spring fixing portion 3-2 for narrow width are fixed at right angles, and the auxiliary tool body 1 The leaf spring members 2 and 3 are fixed to the upper surface with screws and can be rotated by 90 degrees.
The said V-shaped leaf spring part 2-1, 3-1 is a V-shaped shape where the recessed part inserted by the space | interval of an empty pallet opposes. By the way, as described above, there are two types, one having a wide pallet spacing of 100 to 110 mm and one having a narrow width of 80 to 90 mm, so that the wide width L1 of the leaf spring member 2 is larger than 110 mm. The width of the tip of the leaf spring member 2 is designed to be smaller than 100 mm, the narrow width L2 of the leaf spring member 3 is greater than 90 mm, and the width of the tip of the leaf spring member 2 is 80 mm. Designed for smaller widths. Therefore, when the leaf spring members 2 and 3 are inserted into the pallet interval, the tip portions of the springs 2 and 3 smaller than the width of the pallet interval can be easily inserted, and after the insertion, the concave portions are opposed to each other. The spring-shaped spring parts 2-1 and 3-1 are designed to have a width larger than the wide width L 1 or the narrow width L 2. An empty pallet can be easily attached by pressing the inner walls of the top and bottom plates outward. In addition, as shown in FIG. 6, the code | symbol 9 shows a caster fixture.

When the pallet is placed parallel to the ground, after inserting the auxiliary tool of the present invention into the pallet, lifting the end of the pallet on the opposite side where the auxiliary tool is inserted raises the auxiliary tool at one end of the pallet. Since the caster is grounded, the pallet can be easily made substantially perpendicular to the ground, and in this state, it is easy to move easily using the caster.
At this time, even if the caster 7 in contact with the ground and the caster 8 at the center part move too much and the pallet is not stable, the pallet can be stably set up by the cushioning material 6 attached to both ends of the auxiliary tool. The height of the caster is slightly higher than the height of the cushioning material. However, when the load of the auxiliary equipment is applied as a whole, the pallet is stable and stands almost perpendicular to the ground due to the presence of the cushioning material. Can do. At this time, it is necessary to pay close attention to the balance between the height of the caster and the height of the cushioning material.

Pallet erected substantially vertically on the ground, since the aid of the upper surface of the leaf spring member 2 (broad) or leaf spring member 3 (narrow) are interdigitated, movement aid of the lower surface of the caster 7, 8 can support the pallet weight uniformly and dispersedly.
Since the caster is movable in all directions, it can be freely moved even in a narrow work space. Further, after the pallet is moved to the destination, the pallet moving auxiliary tool can be detached from the pallet and easily moved with a punching hole for reducing the weight of the auxiliary tool body. When a load is applied to the cushioning material substantially perpendicular to the ground to stop the movement of the pallet, and when the pallet is laid down and placed in a moving place, the pallet can be easily laid and the auxiliary tool can be easily detached. As described above, the use of the auxiliary tool of the present invention can significantly improve the operation of moving the pallet.

The top perspective view of the auxiliary tool for pallet movement of the present invention The bottom perspective view of the auxiliary tool for pallet movement of the present invention Top plan view of the auxiliary tool for pallet movement of the present invention The bottom plan view of the auxiliary tool for pallet movement of the present invention Sectional view (longitudinal direction) of the auxiliary tool for pallet movement of the present invention The exploded sectional view of the auxiliary tool for pallet movement of the present invention

1 Auxiliary tool body 2 Leaf spring member (wide)
2-1 U-shaped leaf spring
2-2 Leaf spring fixing part 3 Leaf spring member (narrow width)
3-1. A leaf spring part
3-2 Leaf Spring Fixing Section 4 Thumb Screw 5 for Fixing Leaf Spring Member 5 Punching Hole 6 Cushioning Material 7 Caster 8 Auxiliary Tool Caster 9 Caster Mounting Tool 10 Pallet Moving Auxiliary Tool
L1 leaf spring spacing (wide)
L2 leaf spring member spacing (narrow width)

Claims (6)

A pallet consisting of a top plate on which a load is placed and a lower plate in contact with the ground has a wide or narrow space between the top plate and the lower plate. There,
The auxiliary tool for moving the pallet includes a rectangular plate-shaped auxiliary tool body, a leaf spring member fixed symmetrically to the upper surface of the auxiliary tool body, and four casters fixed to the four corners of the lower surface. The leaf spring member comprises a leaf spring part having a square shape facing a recess inserted between the empty pallets, and a leaf spring fixing part fixed to the upper surface of the auxiliary tool body. A pallet moving auxiliary tool, characterized in that a letter-shaped leaf spring part is provided along the long side of the rectangular plate-shaped auxiliary tool body. The leaf spring member is composed of a wide or narrow leaf spring and a leaf spring fixing portion, and the wide leaf spring fixing portion and the narrow leaf spring fixing portion are perpendicular to each other. 2. The pallet moving auxiliary tool according to claim 1, wherein the pallet moving auxiliary tool is fixed to the upper surface of the auxiliary tool main body with a screw, and the leaf spring member is rotatable by 90 degrees. A rectangular cushioning material is fixed in the vicinity of the four casters on the lower surface along the long side of the rectangular plate-shaped auxiliary tool body, and the height of the cushioning material is slightly lower than the height of the casters. The auxiliary tool for pallet movement according to claim 2. 4. The pallet moving aid according to claim 3 , wherein the cushioning material is selected from elastomers, rubbers, springs, foams, and fiber assemblies. The pallet movement auxiliary tool according to claim 3, wherein the rectangular plate-shaped auxiliary tool main body has a punching hole at an end and / or a central portion thereof. 4. The pallet moving aid according to claim 3, wherein a caster is provided at a position of an intersection where an intersecting line of casters fixed at four corners of the lower surface intersects.

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