Transport jig

Abstract

To eliminate complicated work such as arrangement, collection, and rearrangement of squared timbers in a temporary placing area for temporarily placing material / equipment at a construction site and in an unloading area.SOLUTION: A jig A of the present invention comprises a holding member 1 and a connection member 2. The holding member 1 is fixed to each of squared timbers S, each inter-squared timber S is connected by the connection member 2, and thereby the jig is attached to the inter-squared timber S. Each of the squared timbers S is made to be conveyed together with material / equipment by lifting the material / equipment together with each of the squared timbers S in conveyance operation of the material / equipment with a cargo conveyance device provided with a fork.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a handling jig, and particularly to a handling jig used for the handling operation of capital equipment and materials. The capital equipment and materials used in construction work at a construction site are temporarily placed at a temporary storage location via a pair of sawhorses, and the capital equipment and materials are lifted and transported by a cargo handling and transporting device with forks.

Background Art

[0002] At a construction site, gypsum boards, ALC panels, and other sheet-shaped capital equipment and materials are temporarily stacked on the floor or ground of the temporary storage location, and these are transported from the temporary storage location to the unloading location using a cargo handling and transporting device with forks such as a forklift or a hand pallet. Also, depending on the situation at the construction site and the construction process, the temporary storage location of the capital equipment and materials may be changed. In this case as well, the capital equipment and materials are similarly transported to the new temporary storage location by the cargo handling and transporting device.

[0003] In order to lift and transport the capital equipment and materials temporarily placed at the temporary storage location using a cargo handling and transporting device with forks, a gap is required to insert the forks between the floor or ground of the temporary storage location and the capital equipment and materials. Usually, a pair of sawhorses is laid on the floor or ground of the temporary storage location, and the capital equipment and materials are placed on these sawhorses. In this case, the pair of sawhorses is arranged in parallel with an appropriate interval between the two sawhorses so as to support the vicinity of both ends of the capital equipment and materials according to the length of the capital equipment and materials. Also in this case, depending on the length of the capital equipment and materials, that is, when the length of the capital equipment and materials is relatively long, another sawhorse may be placed at the center of the capital equipment and materials so that the center of the capital equipment and materials does not bend. Thus, the capital equipment and materials are temporarily stacked at the temporary storage location via a pair of sawhorses, and these sawhorses ensure a gap between the floor or ground of the temporary storage location and the capital equipment and materials. When transporting the capital equipment and materials, the forks of the cargo handling and transporting device are inserted into the gap formed by the sawhorses under the capital equipment and materials to lift the capital equipment and materials, the cargo handling and transporting device travels to the unloading location, and the capital equipment and materials are unloaded onto a pair of sawhorses arranged similarly at the unloading location.

[0004] Traditionally, wooden pillars (such as rafters or railway ties) were used as this type of lintel, but recently, lightweight, easy-to-handle, and highly durable synthetic resin lintels are often used. This type of lintel has been proposed in Patent Documents 1 and 2.

[0005] This wooden ring is called "Ace Mambo" (registered trademark), and is a plastic molded product with strip-shaped components formed in a wave-like pattern. The dimensions of this wooden bell are approximately 100-150mm in width, 490-590mm in length, 100mm in height, and weigh 430-550g. By using this type of corrugated plastic molded product, the overall weight can be reduced compared to conventional wooden columnar products, and it is also easier for workers to grasp, improving both work efficiency and safety compared to conventional methods. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Utility Model Registration No. 2577643 Gazette [Patent Document 2] Patent No. 3826233 [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] By the way, when using corrugated plastic molded products as the shims, their light weight and ease of handling mean that when transporting equipment from a temporary storage location, the equipment is lifted using the forks of the cargo handling device at the temporary storage location, the driver of the cargo handling device collects the shims to be laid on the floor or ground, places them on top of the equipment, drives the cargo handling device, and then at the unloading location, the shims are again placed on the floor or ground in the same way before unloading. In other words, the driver has to repeatedly get on and off the cargo handling device, collect the shims, and place them each time the equipment is moved, making the work complicated. In this case, the materials and equipment are transported to the vicinity of the unloading site using a cargo handling device, and then handed over to workers waiting at the unloading site. These workers may then adjust the position using a hand pallet, but even in this case, the timbers must be rearranged each time, making the work complicated. Furthermore, the process of placing, collecting, and rearranging these wooden blocks is undesirable because it involves reaching under the lowest piece of equipment (between the floor or ground and the lowest piece of equipment) while the equipment is being lifted in multiple layers using a forklift. This poses a risk of workers being trapped under the equipment if it collapses.

[0008] The present invention aims to solve these conventional problems by providing a transport jig that eliminates the need for the cumbersome tasks of placing, collecting, and rearranging wooden blocks commonly used to temporarily place materials and equipment at temporary storage and unloading locations when transporting materials and equipment used in construction work at a construction site using a forklift-equipped material handling device. This improves the efficiency of material and equipment transport work and ensures the safety of transport work. [Means for solving the problem]

[0009] To achieve the above objective, the present invention In the transportation of construction materials and equipment used in construction work at a construction site, where materials and equipment are temporarily placed in a temporary storage area via a pair of wooden blocks, and these materials and equipment are lifted and transported using a forklift, the transportation jig used for the pair of wooden blocks is as follows: A pair of clamping members that apply pressure and clamp each of the aforementioned wooden blocks from both sides in the width direction, A connecting member is provided and fixed between each of the aforementioned clamping members, Equipped with, Each of the pair of clamping members is formed with a downward-facing U-shaped or U-shaped cross-section and consists of a pair of clamping portions and a connecting portion that connects each of the clamping portions. The clamping member is fixed to each of the timbers, and the timbers are connected by the connecting member and mounted between the timbers. In the transportation of the aforementioned equipment and materials, the equipment and materials are lifted together with the aforementioned wooden blocks, and the wooden blocks are transported together with the equipment and materials. This is the gist of it.

[0010] In this case, the pair of clamping members are specified as follows: (1) A pair of clamping members are made of synthetic resin material. (2 )one The inner surface of each clamping portion of the pair of clamping members forms a friction engagement surface made of a material with a high coefficient of friction or a cross-sectional shape with a high frictional force, so as to be able to hold the wood clamped between the clamping portions.

[0011] In this case, the connecting member is specified as follows: (1) The connecting member is made of synthetic resin material. (2) The connecting member consists of two members, and is configured such that the other member can be extended and retracted relative to the other member and fixed in any extended or retracted state, and has a length adjustment function for adjusting the length of the connecting member. (3) The unit also includes a scale that indicates the length of the connecting member between one member, the other member, or both members. [Effects of the Invention]

[0012] According to the transport jig of the present invention, with the above configuration, A downward-facing U-shaped cross-section. This invention involves fixing a pair of clamping members to a pair of wooden blocks, connecting the blocks with connecting members, and attaching them between the blocks. During the transportation of materials and equipment, the materials and equipment are lifted together with the blocks, and the blocks are transported together with the materials and equipment. This eliminates the need for the cumbersome tasks of placing, collecting, and rearranging wooden blocks, which are commonly used to temporarily place materials and equipment at temporary storage and unloading locations, when transporting materials and equipment used in construction work with a forklift-equipped material handling device at a construction site. This improves the efficiency of materials and equipment transportation and ensures the safety of transportation operations. case It produces a different effect. [Brief explanation of the drawing]

[0013] [Figure 1] A diagram showing the configuration of a transport jig according to one embodiment of the present invention. [Figure 2] This diagram shows the configuration of the length adjustment function of the transport jig ((a) is a top view, (b) is a bottom view). [Figure 3]Figure showing a basic usage example of the same transport jig [Figure 4] This shows a basic usage example of the same transport jig. In particular, it is a figure showing a state in which equipment and materials are lifted and transported together with the sawhorses by a cargo handling and transport device at the temporary storage location. [Figure 5] This shows a basic usage example of the same transport jig. In particular, it is a figure showing a state in which equipment and materials are unloaded together with the sawhorses by a cargo handling and transport device at the unloading location. [Figure 6] Figure showing a usage example using the length adjustment function of the same transport jig [Figure 7] Figure showing an application example of the usage example of the same transport jig

Embodiments for Carrying Out the Invention

[0014] Next, embodiments for carrying out this invention will be described with reference to the drawings. FIG. 1 shows a transport jig according to an embodiment of this invention.

[0015] As shown in FIG. 1, this transport jig A (hereinafter referred to as this jig A) is used for a pair of sawhorses S in the transport operation of equipment and materials that are temporarily stored at a temporary storage location via a pair of sawhorses at a construction site and are lifted and transported by a cargo handling and transport device with a fork. It is composed of a pair of clamping members 1 and a connecting member 2. In this embodiment, this jig A is applied to the corrugated sawhorses exemplified in the background art section of this specification, and in the following description, the pair of sawhorses S refers to this corrugated sawhorse.

[0016] The pair of clamping members 1 of this jig A pressurize and clamp from both sides in the width direction of each sawhorse S. Each clamping member 1 is formed of a synthetic resin material into a downward U-shaped cross-section or a U-shaped cross-section, and is composed of a pair of clamping portions 11 and a connecting portion 12 that connects each clamping portion 11.

[0017] In this case, each pair of clamping members 1 is molded from a lightweight, highly compressive plastic such as polypropylene to avoid burdening the overall jig A during transport and handling. Each clamping member 1 may be formed integrally with the connecting member 2, which will be described later, or it may be formed separately from the connecting member 2. When each clamping member 1 is formed integrally with the connecting member 2, each clamping member 1 is integrally molded at both ends of the connecting member 2, with only a pair of clamping portions 11 spaced apart to allow for pressure clamping of the apple wood S, and together with a part of the connecting member 2 (both ends), it forms a U-shaped or U-shaped cross-section. When each clamping member 1 is formed separately from the connecting member 2, each clamping member 11 is formed as a single unit, with a U-shaped or U-shaped cross-section.

[0018] In this case, each clamping portion 11 of each clamping member 1 is a rectangular flat plate capable of clamping each convex portion s1 and s2 from both sides, spanning both sides of the plinth wood S, that is, one convex portion s1 protruding from one side of the corrugated shape of the plinth wood S and one convex portion s2 that is continuous with the convex portion s1 and protrudes from the other side. The distance between each clamping portion 11 (internal dimension) is formed to be approximately the same as or slightly smaller than the distance between each convex portion s1 and s2, so that each convex portion s1 and s2 can be pressed from both sides. The connecting portion 12 between each clamping portion 11 is formed as part of the connecting member 2 if each clamping member 1 is formed integrally with the connecting member 2, and is formed as a rectangular flat plate between the upper ends of each clamping portion 11 if each clamping member 1 is formed separately from the connecting member 2. Although each clamping portion 11 is assumed to be formed as a rectangular, flat plate, its shape is arbitrary as long as it can clamp each of the convex portions s1 and s2 of the plinth wood S from both sides.

[0019] Furthermore, the inner surfaces of each clamping portion 11 of this pair of clamping members 1 are friction engagement surfaces 11f made of a material with a high coefficient of friction or a cross-sectional shape with a high frictional force, so as to be able to hold the wood S clamped between the clamping portions 11. In the former case, a plate or sheet made of rubber or the like with a high coefficient of friction is attached to the inner surface of each clamping portion 11. In the latter case, the inner surface of each clamping portion 11 is formed by an uneven shape with high frictional force, a wedge-shaped convex shape, or a combination thereof. This prevents the wood S held between the clamping portions 11 from falling out.

[0020] The connecting member 2 of this jig A is fixed across each clamping member 1 to connect them, and is made of synthetic resin material and can be formed into any shape as long as it can support each clamping member 1 (at both ends of the connecting member 2).

[0021] In this case, the connecting member 2 is made of a lightweight, highly compressive plastic such as polypropylene so as not to be burdensome to carry and handle as a whole jig A. This connecting member 2 is formed as a horizontally elongated rectangular flat plate. As previously described, when the connecting member 2 is formed integrally with each clamping member 1, the connecting member 2 is formed as a horizontally elongated rectangular plate, and a pair of clamping portions 11 are integrally molded at both ends of its lower surface at intervals that allow for pressure clamping of the lintel S. When each clamping member 1 is formed separately from the connecting member 2, the connecting member 2 is formed as a single horizontally elongated rectangular flat plate, and clamping members 1, formed in a U-shape or U-shaped cross-section, are joined to both ends of its lower surface by fastening means such as bolts, adhesives, heat compression, or heat welding.

[0022] Furthermore, while the connecting member 2 of this jig A can basically be formed as a single, continuous plate of a fixed length, the spacing between the pair of wooden blocks S changes depending on the length of the materials and equipment to be loaded onto the pair of wooden blocks S. Therefore, the length of the connecting member 2 needs to be changed accordingly. In this case, it is possible to provide multiple types of connecting member 2 with different lengths in this jig A, or it is possible to provide a length adjustment function to the connecting member 2 of this jig A so that its length can be adjusted. Figure 2 shows the length adjustment function of the connecting member 2.

[0023] As shown in Figure 2, the length adjustment function of the connecting member 2 of this jig A is configured such that the connecting member 2 consists of two members 21 and 22, and the other member 22 is extendable and retractable relative to one member 21 and can be fixed in any desired extended or retracted state. In addition, a scale 23 is provided to display the length of the connecting member 2 between one member 21, the other member 22, or both members 21 and 22.

[0024] In this case, one member 21 consists of a long, narrow rectangular flat plate having a predetermined length. One clamping member 1 is provided at one end of the lower surface of this one member 21. A guide pin 211 is projected from the center of this lower surface, and a stopper 212 is provided on this guide pin 211. The other member 22 consists of a long, narrow rectangular flat plate having approximately the same length as the one member 21. The other clamping member 1 is provided at the other end of the lower surface of this other member 22 (the end opposite to the one end of the one member 21). In this other member 22, a long, narrow hole is formed through the center in the width direction between the clamping member 1 at one end and the other end, allowing the guide pin 211 of the one member 21 to be inserted, and a slide guide 220 for the slide pin 211 is provided. In this way, the other member 22 is slidably superimposed on the other member 21 by the engagement of the guide pin 211 and the slide guide 220, and the length of the connecting member 2 is assembled so that it can be adjusted to match the length between the pair of timbers S. In this case, guide portions may also be provided in a convex shape along both long edges on the lower surface of the one member 21, and the other member 22 may be fitted and positioned between these guide portions of the one member 21. Furthermore, a scale 23 is provided on the upper surface of the other member 22 to indicate the length between the other end of the one member 21 and the other end of the other member 22 when the other member 22 is extended or contracted from the other end of the one member 21, or the length of the entire connecting member 2. The length of the jig A can be confirmed using this scale 23. However, the maximum length of the connecting member 2 should be such that, as will be described later, when the jig A is lifted up together with the materials and equipment by a material handling device, the deflection of the ends of the jig A does not hinder the transport of the materials and equipment and each timber S.

[0025] Furthermore, when using this jig A with materials exceeding the maximum length of the connecting member 2, that is, when the materials are large and wooden blocks are laid at both ends and in the center of the lower part of the materials, the overall length can be adjusted by using two of these jigs A, attaching one between the wooden block at one end and the wooden block in the center, and attaching the other between the wooden block at the other end and the wooden block in the center, or by combining multiple jigs A to extend the length.

[0026] Thus, the jig A is formed by a pair of clamping members 1 and connecting members 2, which are either integrally formed or formed separately and joined together by the fastening means described above. Each clamping member 1 is placed over and fixed to each timber S, and the timbers S are connected to each other by the connecting members 2 and attached between each timber S. In the transportation of materials and equipment, the materials and equipment are lifted together with each timber S, and each timber S is transported together with the materials and equipment. In other words, with the jig A, the forks of the material handling and transporting device are lifted from below the jig A (connecting member 2) at the bottom of the materials and equipment, bringing the upper surface of the forks into contact with the outer surface of the connecting member 2 that connects each timber S, thereby lifting the jig A and each timber S together with the materials and equipment simultaneously, allowing the material handling and transporting device to move along with them.

[0027] Figures 3 to 7 show examples of the use of this jig A for a pair of wooden blocks placed in a temporary storage area for materials and equipment at a construction site.

[0028] Figures 3, 4, and 5 show a basic example of the use of the jig A. As shown in Figure 3, a pair of wooden blocks S are installed at predetermined intervals according to the length of the materials and equipment in a temporary storage area (floor or ground) at a construction site, and the jig A is attached to these wooden blocks S. In this case, each clamping member 1 of the jig A is placed over each wooden block S from above. As a result, the convex parts s1 and s2 protruding from both sides of the corrugated shape of each wooden block S are pressed and clamped downwards by the approximately U-shaped or approximately U-shaped clamping parts 11 of each clamping member 1, and the friction engagement surfaces 11f on the inner surface of each clamping part 11 are frictionally engaged with the convex parts s1 and s2, thereby fixing each clamping member 1. In addition, the wooden blocks S are connected to each other by the connecting members 2 between the clamping members 1, and each wooden block S is integrated.

[0029] In this way, the materials and equipment are stacked on top of each wooden block S. When transporting the materials and equipment, as shown in Figure 4, the forks F11 of the cargo handling device F are inserted into the gaps created by the wooden blocks S at the bottom of the materials and equipment, and the materials and equipment are lifted together with the main jig A (connecting member 2). The cargo handling device F then transports the main jig A together with the materials and equipment to the unloading location. During this transport, each wooden block S held by each clamping member 1 is compressed and clamped by each clamping part 11, the inner dimension between each clamping part 11 of each clamping member 1 is the same as or slightly smaller than the width of each wooden block S. Furthermore, each wooden block S is frictionally engaged by the friction engagement surface 11f on the inner surface of each clamping part 11, so that each wooden block S does not fall off each clamping member 1. Then, as shown in Figure 5, the materials and equipment are unloaded together with the main jig A at the unloading location. In this case, the equipment is unloaded to the unloading location via a pair of wooden supports S held beneath the equipment by the jig A. In this case, there is no need to place the pair of wooden supports S at the unloading location, and the equipment can be unloaded directly to the designated position. Therefore, the driver of the cargo handling device F does not need to get out of the cargo handling device F and place the wooden supports S at the unloading location. Moreover, the equipment is reliably unloaded to the designated position at the unloading location. Similarly, even if workers are waiting at the unloading location, there is no need for them to place the wooden supports S.

[0030] Thus, with this jig A, once the equipment is brought to the site, the jig A is attached to the wooden support beam S, and the equipment is placed on the beam beam S. After that, there is no need for the transporters or workers to retrieve or rearrange the beam beam S each time the equipment is moved.

[0031] Figure 6 shows an example of use when the jig A has a length adjustment function for the connecting member 2. As shown in Figure 6, the distance between the pair of wooden blocks S changes depending on the length of the materials, so in this case, the length of the connecting member 2 of the jig A is adjusted to match the distance between the pair of wooden blocks S. In this case, the other member 22 of the connecting member 2 is pulled out from one member 21 by the engagement guidance of the guide pin 211 of the one member 21 and the slide guide 220 of the other member 22, and fixed in an appropriate position by the stopper 212 of the one member 21. In this case, there is a scale 23 on the upper surface of the other member 22 that indicates the extension / retraction length from the one member 21 or the total length of the connecting member 2, so the total length of the connecting member 2 can be adjusted using this as a guide. In this way, even if the lengths of the materials are different and the distance between the pair of wooden blocks S changes, the length of the jig A can be adjusted accordingly, and it can be used in the same way as the basic usage example described above.

[0032] Figure 7 shows an example of the basic use of jig A. As shown in Figure 7, in this case, the length of the material is relatively long, and an additional support beam S is placed in the center of the material to prevent it from bending. In such a case, one support beam S at each end and the support beam S in the center are considered one pair of support beams S, and the other support beam S at each end and the support beam S in the center are considered the other pair of support beams S. Two jigs A are then attached between one pair of support beams S and between the other pair of support beams S. In this way, it is possible to accommodate the long length of the material and it can be used in the same way as the basic use example described above. Furthermore, in this case, if one or both of the two jigs A have a length adjustment function, the length of the jigs A can be adjusted to match the spacing between each support beam S, and it can be used in the same way as in each of the use examples described above.

[0033] As explained above, with this jig A, a pair of clamping members 1 are fixed to a pair of timbers S, and the timbers S are connected by a connecting member 2 and attached between the timbers S. During the transportation of materials and equipment, the materials and equipment are lifted together with the timbers S, and the timbers S are transported together with the materials and equipment. Therefore, when transporting materials and equipment used in construction work at a construction site using a forklift, the complicated tasks of placing, collecting, and rearranging timbers, which are commonly used to temporarily place materials and equipment at temporary storage and unloading locations, are eliminated, reducing the burden on workers and improving the efficiency of materials and equipment transportation. Furthermore, the amount of work that workers have to do, such as putting their hands under materials and equipment, is greatly reduced, eliminating or significantly reducing accidents such as getting hands caught in materials and equipment or being crushed under materials and equipment that collapse, thereby improving the safety of transportation work.

[0034] Furthermore, this jig A has the following advantages: (1) Since both the clamping member 1 and the connecting member 2 are made of synthetic resin material, the entire jig A is lightweight, making it easy to transport and handle. (2) Each pair of clamping members 1 is formed in a U-shape or U-shaped cross-section and consists of a pair of clamping parts 11 and a connecting part 12 that connects each clamping part 11. Therefore, each clamping member 1 can be placed over each timber S from above and fitted into place, and the jig A can be easily attached to each timber S. (3) The inner surfaces of each clamping portion 11 of the pair of clamping members 1 form friction engagement surfaces 11f made of a material with a high coefficient of friction or a cross-sectional shape with a high frictional force, so as to be able to hold the wood S clamped between each clamping portion 11, the wood S will not fall out of each clamping member 1 and the wood S can be reliably transported together with the equipment and materials. (4) The connecting member 2 consists of two members 21 and 22, and the other member 22 is configured to be expandable and contractible relative to the other member 21 and to be fixed in any expanded or contracted state, and has a length adjustment function to adjust the length of the connecting member 2, so that the length of the jig A (connecting member 2) can be adjusted to the spacing between a pair of wooden blocks S arranged to match the length of the materials and equipment, and the jig A can be easily and reliably attached to the wooden blocks S. In this case, a scale 23 indicating the length of the connecting member 2 is also provided between one member 21 or the other member 22 or both members 21 and 22, so that the length of the jig A can be easily adjusted.

[0035] In this embodiment, the jig A is exemplified as being applied to a corrugated wooden support beam made of synthetic resin. However, conventional wooden columnar timbers or railway ties can be similarly applied as support beams, and the same effects and advantages can be achieved even when applied to wooden columnar objects. [Explanation of Symbols]

[0036] A Transport jig 1 Clamping member 11 Clamping part 11f Frictional engagement surface 12 Connecting part 2 connecting members 21 One of the members 211 Guide pins 212 Stopper 22 Other member 220 Slide Guide 23 divisions S Rinki (Wave-shaped Rinki) s1, s2 convex part F. Cargo handling equipment F11 Fork

Claims

1. In the transportation of construction materials and equipment used in construction work at a construction site, where materials and equipment are temporarily placed in a temporary storage area via a pair of wooden blocks, and these materials and equipment are lifted and transported using a forklift, the transportation jig used for the pair of wooden blocks is as follows: A pair of clamping members that apply pressure and clamp each of the aforementioned wooden blocks from both sides in the width direction, A connecting member is provided and fixed between each of the aforementioned clamping members, Equipped with, Each of the pair of clamping members is formed with a downward-facing U-shaped or U-shaped cross-section and consists of a pair of clamping portions and a connecting portion that connects each of the clamping portions. The clamping member is fixed to each of the timbers, and the timbers are connected by the connecting member and mounted between the timbers. In the transportation of the aforementioned equipment and materials, the equipment and materials are lifted together with the aforementioned wooden blocks, and the wooden blocks are transported together with the equipment and materials. A transport jig characterized by the following features.

2. The transport jig according to claim 1, wherein the pair of clamping members are formed of a synthetic resin material.

3. The transport jig according to claim 1, wherein the inner surface of each clamping portion of the pair of clamping members forms a friction engagement surface made of a material with a high coefficient of friction or a cross-sectional shape with a high frictional force, so as to be able to hold the wood clamped between the respective clamping portions.

4. The transport jig according to claim 1, wherein the connecting member is made of a synthetic resin material.

5. The transport jig according to claim 1, wherein the connecting member consists of two members, and the other member is configured to be expandable and contractible relative to one member and to be fixed in any expanded or contracted state, and has a length adjustment function for adjusting the length of the connecting member.

6. The transport jig according to claim 5, further comprising a scale for indicating the length of a connecting member between one member, the other member, or both members.

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