Roll material carrier

Abstract

To provide a roll material carrier that reduces a heavy labor involved in carrying and storing roll materials that can be handled manually, such as advertising printing materials and wallpaper, and is easy to handle without damaging the roll materials.SOLUTION: In order to solve the above-described problem, a roll material carrier includes a base, a handle, and a roll material support section. The handle is formed by a grip section and a grip support section, and includes a coupling part in which the base and the grip support section are joined in L-shape or are integrally molded. The grip section is disposed receding from an edge on a base side face side, and the roll material support section is inserted into a hollow portion of a roll material core section, and a roll material is handled by human power.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a roll material carrier that can be manually handled for use with advertising printing materials, wallpaper, and the like. [Background technology]

[0002] Resin or paper film-like sheets are used for advertising printing materials, wallpaper, textiles, packaging materials, wrapping materials, tents, etc. In this case, the film-like sheets are manufactured in the form of rolled materials. The size of the rolled materials at the time of manufacture is a winding diameter of about 110.3 mm to 8,000 mm, a width in the longitudinal direction of the rolled material of about 1,000 mm to 10,000 mm, and a weight ranging from less than 1 kg to more than 1,000 kg. These may be cut into shorter widths depending on the respective applications.

[0003] Large-sized industrial roll materials used for mass production in factories are transported using forklifts or dedicated roll lifters.

[0004] On the other hand, small-scale printers, designers, builders, agricultural businesses, and packers often use roll materials with a maximum diameter of about 180 mm and a maximum weight of about 30 kg, which can be handled manually. The reason why these sizes are generally set is because the printing presses used by small-scale printers are mass-produced based on these sizes.

[0005] Frequent manual transport of rolled materials weighing about 30 kg is very hard work, and there is a risk of damaging the rolled materials if they are dropped during transport. In addition, if the material is dropped on the transporter's feet, there is a risk of injury, such as a fracture.

[0006] Roll materials are often packed in rectangular boxes, and if they are stored side-by-side against a wall with their lengthways facing up, there is a risk of them falling over one another. Also, if they are stacked side-by-side on the floor, the roll materials at the bottom may be crushed, and the roll materials at the bottom will be more difficult to remove.

[0007] Prior art has been disclosed that has been invented to make roll material easier to handle when transporting it. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Utility Model Application Publication No. 63-194851 [Patent Document 2] JP 2013-107694 A Summary of the Invention [Problem to be solved by the invention]

[0009] Patent document 1 discloses a cart for storing paper rolls, which is characterized by having multiple blocks with axles that can be connected in the vertical direction fixed onto a loading platform with wheels on the underside, and by stacking and connecting blocks with axles and cylindrical connecting parts in the vertical direction to the fixed blocks to form a support for inserting small paper roll tubes.

[0010] The roll storage cart of Patent Document 1 makes it possible to stably transport and store multiple roll materials at the same time. However, no consideration is given to lifting the roll materials up to the roll storage cart, and there is a problem of reducing the burden of lifting them manually. In addition, the handling of multiple roll materials is assumed, and there is a problem of poor space efficiency when storing a single roll material.

[0011] Patent Document 2 discloses a transportation material that can reduce the effort required to remove roll products and reduce the amount of waste after transportation. The transport plate for roll products has a protrusion that can move in and out of the hollow part of the roll product, and is configured to easily fix and release the roll product. However, there is a problem that it is burdensome to manually load the roll product onto the transport plate. In addition, it is assumed that multiple roll materials will be loaded, and there is a problem that the space efficiency is poor when storing a single roll material.

[0012] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a roll material transport device that reduces the heavy labor involved in transporting and storing roll materials that can be handled by hand, such as advertising printing materials and wallpaper, is easy to handle, and can be handled without damaging the roll material. [Means for solving the problem]

[0013] In order to solve the above problems, the roll material transport device of the present invention comprises a base, a handle, and a roll material support part, the handle being composed of a grip part and a grip support part, the base and the grip support part being joined or integrally molded in an L-shape at a joint, the grip part being arranged retreating from the rear edge of the base towards the tip, the roll material support part being inserted into the hollow part of the roll material core, and the roll material being handled by human power.

[0014] The roll material carrier of the present invention is also characterized in that the handle support portion is provided with a reinforcing member that prevents roll material with a wound diameter of 180 mm or less from interfering with the joint.

[0015] The roll material transport device of the present invention is further characterized in that the base has a step portion in the thickness direction at the tip portion opposite the handle portion, on the top surface (hereinafter referred to as the "loading surface") or on both the loading surface and the bottom surface, and the step portion is inserted into and fixed to the connecting member.

[0016] The roll material carrier of the present invention is also characterized in that the position of the handle can be changed in the longitudinal direction of the roll material on the handle support portion.

[0017] The roll material carrier of the present invention is also characterized in that the distance from the upper end of the handle to the loading surface of the base is 330 mm or more and 370 mm or less. Effect of the Invention

[0018] With the roll material transport device of the present invention, when the longitudinal direction of the roll material is horizontal and the support part of the roll material transport device is inserted and the roll material is manually lifted, the handle grip part of the roll material transport device attached to one end is held with one hand and the other hand is used to support the roll material at a position closer to the other end than the center of gravity of the roll material, allowing the roll material to be lifted without having to squat deeply, which has the effect of reducing strain on the lower back.

[0019] In addition, with the roll material carrier of the present invention, when lifting a roll material, both hands are positioned at a relatively similar height, and the force applied to both hands is nearly uniform, making it easier to handle the roll material.

[0020] The roll material carrier of the present invention has the effect of being applicable to roll material that can be handled manually, with a maximum diameter of approximately 180 mm and a maximum weight of approximately 30 kg.

[0021] According to the roll material transport device of the present invention, it is possible to connect the roll material transport devices to each other using the connecting member. In addition, by arranging the connecting member on a wall, it is possible to fix the roll material transport device to the wall and store the roll material. Furthermore, by arranging the connecting member on a dolly for transporting luggage, it is possible to transport the roll material stably when it is loaded on the dolly.

[0022] According to the roll material transport device of the present invention, by providing a step portion at the tip portion of the base with the same thickness as the connecting member, no step is created when the tip portion of the base is inserted into the connecting member, and there is no interference between the roll material and the connecting member.

[0023] Conventionally, when lifting a roll of material leaning against a wall with both hands, one hand is placed on the bottom of the roll so that the weight of the roll is applied to it, and the other hand is placed near the center of the roll. In this case, most of the weight is applied to the hand that is placed on the bottom of the roll. Also, when handling a roll of material in a nearly horizontal position, most of the weight is applied to the hand that is placed in the center, and the weight distribution on both hands is not even.

[0024] According to the roll material carrier of the present invention, by setting the distance from the top of the grip of the handle to the loading surface of the base, i.e., the distance from the base of the thumb to one end of the roll material when gripped in the hand, at 350±20 mm, a person with an average build of 150 cm to 180 cm tall will have their hands positioned at approximately the same distance from both ends of a roll material of a length that can be normally handled by hand (50 inches = approximately 1,370 mm or less). At that time, the force exerted by the weight of the roll material can be distributed to both hands. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a perspective view of a roll material carrier 10 according to the present invention. [Diagram 2] FIG. 1 is a plan view of a roll material carrier 10 according to the present invention. [Diagram 3] FIG. 1 is a side view of a roll material carrier 10 according to the present invention. [Figure 4] FIG. 2 is a usage diagram showing a state in which a roll material support part 16 of the roll material carrier 10 according to the present invention is inserted into a hollow part of a roll material core RC. [Diagram 5] FIG. 1 is a diagram showing a conventional state in which a roll material R is lifted only by human power. [Figure 6] FIG. 1 is a diagram showing a state in which a roll material R is lifted using the roll material carrier 10 of the present invention. [Figure 7] FIG. 13 is a diagram showing a state in which a roll material R is fixed to a wall surface WL and stored by utilizing a step portion 122 of the roll material carrier 10 of the present invention. [Figure 8]1 is a side view showing a state in which a plurality of roll materials R are coupled together and loaded onto a cart 50 by utilizing a stepped portion 122 of the roll material carrier 10 of the present invention. FIG. [Figure 9] 1 is a plan view showing a state in which a plurality of roll materials R are connected together for transport or storage by utilizing a stepped portion 122 of the roll material carrier 10 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] An embodiment of a roll material carrier 10 according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the roll material carrier 10 according to the present invention. The roll material carrier 10 according to the present invention is composed of a base 12, a handle 14, and a roll material support part 16. The handle 14 is composed of a grip part 142 and a grip support part 144. The roll material support part 16 is disposed on the loading surface of the base 12. The material of the roll material carrier 10 may be any of resin, metal, and wood, but it is desirable that it is lightweight because a maximum of about 30 kg of roll material R is lifted by human power. Therefore, if it is metal, a lightweight material such as aluminum is preferable.

[0027] The base 12 and the grip support part 144 are joined by integral molding into an L-shape at the joint 18. Alternatively, they may be joined by a rigid joint such as welding or by screwing. In particular, when the material is resin, it is preferable to integrally mold them into an L-shape in consideration of strength.

[0028] 2 is a plan view of the roll material carrier 10 according to the present invention. A roll material support part 16 is disposed on the base 12. Like the joint part 18 between the base 12 and the handle support part 144, the roll material support part 16 is disposed by integral molding. Alternatively, in the case of metal or wood, the roll material support part 16 may be fixed by rigid joint or screwing.

[0029] The roll material carrier 10 is designed to lift roll material R weighing up to about 30 kg by human power. Therefore, the expected dimensions of the roll material R are a width, i.e., a length in the longitudinal direction of the roll material, of 50 inches (about 1,370 mm), and an inner dimension of the paper tube of the roll material core RC of 3 inches φ (about 76 mm φ). If the material is PVC film, which is the most popular, when 50 m of the film is wound, the roll material R will have a diameter of about 170 mm φ and a weight of about 25 kg. Many printing machines used by small-scale printing companies, design companies, or packaging companies are compatible with this size. Therefore, roll material R transported by human power is also widely available in this size even if it is made of other materials, including construction materials and agricultural materials, and is subject to the application of the roll material carrier 10 of the present invention.

[0030] Further, roll materials R having widths smaller than the above, such as 900 mm and 500 mm, are also available, but their weight is sufficiently lighter than 30 kg and falls within the range of application of the roll material carrier 10 of the present invention.

[0031] The length (width) in the extension direction of the handle portion 142 of the base 12 is set to less than 170 mm, taking into consideration the connection of the roll material transport device 10 described later. Also, there is no particular limit to the length (depth) in the vertical direction of the handle portion 142 of the base 12, but it is set to 205 mm, taking into consideration the width of a typical dolly 50 used manually when connecting the roll material transport device 10 described later and space efficiency.

[0032] The roll material support part 16 is formed in a circular or polygonal shape with a diameter of less than 3 inches in plan view. However, if the roll material support part 16 is polygonal, the corners of the roll material support part 16 are likely to come into contact with the roll material core RC when the roll material support part 16 is inserted into the hollow part of the roll material core RC, which may make the roll material support part 16 difficult to handle. Therefore, a circular shape is preferable.

[0033] The grip support portion 144 is preferably formed in a hollow or H-shaped steel shape to reduce the weight of the roll material carrier 10. In order to minimize the weight, an H-shaped steel shape is more preferable since it requires less use. In this case, the joint portion 18 with the base 12 on the center side of the H-shaped steel shape serves as a reinforcing member 146 for the flat plate portion. The reinforcing member 146 is formed in a circular shape with a maximum roll material diameter of 180 mmφ toward the back of the base 12 to avoid interference with the roll material R in the vicinity of the joint portion 18.

[0034] The grip support portion 144 is formed to be recessed by a maximum of 10 mm from the side surface in the width direction of the base 12, taking into consideration that when the roll material carrier 10 described below is connected, roll materials R with different winding diameters will be adjacent to each other.

[0035] The grip 142 is disposed receding from the edge (rear) of the base 12 on which the grip support portion 144 is disposed toward the tip end where the step portion 122 is provided. This is to improve convenience by making it easier to insert fingers between the wall surface or the like and the grip 142 and to grip it when the side surface (rear) of the base 12 on the grip 142 side is placed against a wall surface, a printing machine, or other equipment.

[0036] 3 is a side view of the roll material carrier 10 according to the present invention. The height of the roll material support part 16 needs only to be able to catch the roll material R, and there is no problem if it is 30 mm or more. However, taking into consideration the ease of insertion when rolling, the stability when the roll material R is inserted, and the stability when the roll material R is tilted when lifting it, a height of 50 mm or more and 100 mm or less is preferable.

[0037] The base 12 has a step 122 in the thickness direction from the loading surface or both the loading surface and bottom surface of the base 12 at the tip portion opposite the handle 142. The step 122 can be inserted into a connecting member 20 described later to prevent the long roll material R from falling over and to ensure stable fixed storage. The step 122 may be formed on both the loading surface and bottom surface as shown in FIG. 3(a) and inserted and fixed into a "U"-shaped connecting member 20. The step 122 may also be formed only on the loading surface as shown in FIG. 3(b) and inserted and fixed into a connecting member 20 arranged in an "inverted L" shape.

[0038] When lifting roll material R manually, the position of both hands relative to the roll material R affects how easily it can be lifted. Therefore, an important factor is the distance H from the upper end of grip portion 142 of handle 14 to the loading surface of base 12 with which the bottom surface of roll material R abuts. The applicable range of distance H will be described later.

[0039] 4 is a usage diagram showing a state in which the roll material support part 16 of the roll material carrier 10 according to the present invention is inserted into the hollow part of the roll material core RC. When handling a roll material R with a hollow diameter of 31 inches in the roll material core RC and a length of 50 inches, the clearance between the roll material support part 16 and the roll material core RC is 2 mm or more and 5 mm or less, which is a suitable dimension for achieving both ease of insertion of the roll material core RC into the roll material support part 16 and stability of the roll material R when the roll material carrier 10 is tilted.

[0040] For roll material R with a maximum diameter of 180 mm, the length of the grip support part 144 from the back of the base 12 toward the tip should extend as close as possible to the roll material core RC, so that the point of force is closer to the roll material core RC when tilting and lifting the roll material R, making it easier to lift. However, the closer the tip position of the joint part 18 of the grip support part 144 is to the roll material core RC, the higher the possibility of interference with the roll material R, taking into account the dimensions of the base 12 described above. For this reason, it is preferable to set the tip position of the joint part 18 of the grip support part 144 at a position that is 10 mm or more and 50 mm or less closer to the roll material core RC than the outer diameter of the roll material R with a maximum applicable diameter of 180 mm.

[0041] FIG. 5 shows a conventional state in which a worker M lifts a roll material R using only human strength. When lifting a long roll material R, one hand places on the bottom surface of the roll material R that is in contact with the floor, and the other hand is placed at a position away from the center of gravity of the roll material R relative to the bottom surface where one hand is placed, and this balances the roll material R and increases stability when lifting it. The further the other hand is from the center of gravity, the greater the stability when lifting. On the other hand, as both hands are farther away from the side of the body and the distance w2 increases, it becomes increasingly difficult to apply force when lifting.

[0042] In addition, if the other hand is placed closer to the center of gravity of the one hand, the center of gravity of the roll material R will move away from the center of the body of the worker M, making the roll material R unbalanced and difficult to handle when lifting it. In addition, the burden on the other hand will increase.

[0043] In order to place both hands on either side of the center of gravity of the roll material R, it is necessary to tilt the roll material R as much as possible, stretch both hands vertically, and increase the distance h2. As the inclination angle of the roll material R is increased and the angle θ2 of both hands from the horizontal exceeds 45 degrees and approaches vertical, most of the weight of the roll material R is placed on the hand holding the bottom surface. In that case, the other hand is only supporting the roll material R to prevent it from falling over, and the weight distribution on both hands is not balanced, and the load is placed on only one side of the body, which can cause back pain. In addition, the fact that the hand that places the bottom surface of the roll material R must be lowered is also a major factor in the onset of back pain.

[0044] FIG. 6 shows the state when lifting a roll material R using the roll material carrier 10 of the present invention. When using the roll material carrier 10 of the present invention, when a worker M lifts a long roll material R, one hand grips the handle 142 of the roll material carrier 10 attached to the bottom surface of the roll material R that abuts against the floor. When the other hand is placed at a position away from the center of gravity of the roll material R with respect to the bottom surface on which the roll material carrier 10 is attached, the roll material R is balanced and the stability increases when lifting. The further the other hand is from the center of gravity, the greater the stability increases when lifting. When the worker M uses the roll material carrier 10, one hand can be placed at a position close to the center of gravity of the roll material R by the length from the top end of the handle 142 of the roll material carrier 10 to the loading surface of the base 12, that is, the distance H. At the same time, the other hand can be placed at a position close to the side of the body.

[0045] The other hand can be placed at a position farther away from the center of gravity compared to the conventional method of lifting roll material R without using the roll material carrier 10 of the present invention. By using the roll material carrier 10, both hands can place the center of gravity of the roll material R at a distance w1 close to the width of the body, close to the center of the body, i.e., the trunk. By placing both hands at positions as equally far from the center of gravity as possible and lifting the roll material R with the center of gravity close to the center of the body, it is possible to create a state in which it is easy to apply force when lifting.

[0046] If the worker M can hold the roll material R with both hands on either side of the center of gravity of the roll material R at a distance w1 close to the distance between the sides of the body, the vertical distance h1 between the hands will be shortened. In this case, the angle θ1 of both hands from the horizontal will be smaller than the angle θ2, so the load on both hands will be closer to equal. Therefore, the roll material R can be lifted using the large muscles of the trunk in a balanced manner, so the lifting sensation of the worker M is very good. If the large muscles of the trunk can be used in a balanced manner, the factors that cause back pain can be reduced. In addition, the fact that there is no need to lower the hands that are placed on the bottom of the roll material R can also reduce the factors that cause back pain.

[0047] From the above, it can be seen that the distance H from the upper end of the grip portion 142 of the handle 14 to the loading surface of the base 12 with which the bottom surface of the roll material R abuts is important in order to place the hand that touches the bottom side of the roll material R in a position close to the center of gravity of the roll material R and maintain the left-right balance as much as possible. In order to determine the distance H, an experiment was conducted to find the dimensions of the roll material carrier 10 that provides an excellent lifting sensation, using four male and female workers M with different physiques. The distance w1 between both hands when an excellent lifting sensation is obtained using the roll material carrier 10 of the present invention, the angle θ1 of both hands from the horizontal, and the position of both hands from the center of gravity of the roll material R were measured, and the distance H that provides the best lifting sensation for each physique was calculated. The results are shown in Table 1.

[0048] [Table 1] From the above results, it was found that by setting the distance H to a dimension of 330 mm or more and 370 mm or less in accordance with the physique, a worker M having a physique close to average can obtain the roll material carrier 10 with the best lifting sensation. Since the best lifting sensation differs depending on the physique, it is preferable that the position of the grip part 142 can be changed in the longitudinal direction of the roll material at the grip support part 144. For example, the grip support part 144 is provided with a plurality of holes through which the screw members such as screws, bolts or pins can be inserted, and the grip part 142 can be separated and fixed with the screw members such as screws, bolts or pins. This eliminates the need to prepare roll material carriers 10 of a plurality of different shapes, which is efficient. EXAMPLES

[0049] 7 is a diagram showing a state in which a roll material R is fixed to a wall surface WL and stored by utilizing the step portion 122 of the roll material carrier 10 of the present invention. When a U-shaped connecting member 20 is fixed with a screw member to a baseboard BB provided at the joining point of the wall surface WL and the floor surface FL of a building, and the step portion 122 of the roll material carrier 10 is inserted into the opening of the connecting member 20 and fixed for storage, it is possible to prevent the roll material R from falling over, and an effect of improving safety is achieved.

[0050] If the length of the step portion 122 from the tip of the base 12 in the depth direction is 8 mm or more, it is possible to hold and fix the roll material R having a height of 50 inches.

[0051] Although the connecting member 20 is exemplified as being U-shaped, it may be in an inverted L-shape. It is preferable that the thickness of the connecting member 20 is the same dimension as the drop of the stepped portion 122, so that when the stepped portion 122 is inserted into the opening of the connecting member 20, no step is generated between the loading surface of the base 12 and the stepped portion 12, thereby preventing interference between the roll material R and the connecting member 20. EXAMPLES

[0052] Fig. 8 is a side view showing a state in which a plurality of roll materials R are coupled together and loaded onto a dolly 50 by utilizing the step portion 122 of the roll material transport device 10 of the present invention. Fig. 9 is a plan view showing a state in which a plurality of roll materials R are coupled together and transported or stored by utilizing the step portion 122 of the roll material transport device 10 of the present invention.

[0053] The standard dimensions of a typical dolly 50 with a handle that is normally used manually are a depth in the longitudinal direction of about 700 mm and a width in the lateral direction of about 450 mm. By disposing a connecting member 20 along the center line in the longitudinal direction of the dolly 50, eight roll material carriers 10, each with a base 12 having a width of 160 mm and a depth of 205 mm, can be loaded and fixed.

[0054] 8, in the roll material carrier 10, the step portion 122 is inserted into the connecting member 20 from the width direction of the cart 50, so if the connecting member 20 is "U" shaped, it is disposed with its opening facing in both width directions of the cart 50. Also, two "U" shaped connecting members 20 facing in both width directions may be integrated to form a connecting member shaped like an "H" laid down on its side.

[0055] The maximum diameter of the roll material R indicated by the dashed line in FIG. 9 is 170 mmφ. By selectively arranging roll material R having a diameter of 170 mmφ or less, it is possible to effectively utilize space. The roll material R having a diameter of 170 mmφ or less may be, for example, a roll material R that is in use.

[0056] Furthermore, the grip support parts 144 are formed up to 10 mm back from the side surface in the width direction of the base 12, taking into consideration that roll materials R with different winding diameters will be adjacent when the roll material carriers 10 are connected. For example, when a third roll material carrier 10 loaded with a roll material with a diameter of 170 mmφ is inserted from the right toward the center of the cart 50 from the right in the figure, the grip support parts 144 of the adjacent roll material carriers 10 can be prevented from interfering with the outer periphery of the roll material R. [Industrial Applicability]

[0057] The roll material carrier of the present invention can be used for transporting and storing roll materials that can be handled by human power, such as advertising printing materials and wallpaper. [Explanation of symbols]

[0058] 10 Roll material carrier 12 Pedestal 122 Step 14 Handle 142 Grip 144 Grip support 146 Reinforcement members 16 Roll material support section 18 Joint 20 Connecting members 50 Carts R Roll material RC roll core WL Wall FL floor surface BB Baseboard M worker H: Distance from the top of the handle grip to the base loading surface where the bottom of the roll material comes into contact h1: The height distance between the left and right hands when lifting a roll using the roll material carrier of the present invention h2 The distance in height between the left and right hands when lifting the roll directly with both hands w1: Horizontal distance between the left and right hands when lifting a roll using the roll material carrier of the present invention w2 The horizontal distance between the left and right hands when lifting the roll directly with both hands

Claims

1. With a pedestal, A handle and A roll material support portion; Equipped with The handle is A grip part and A grip support portion; It is composed of The base and the grip support part are joined or integrally formed in an L-shape at a joint part, The grip portion is The base is disposed so as to retreat from the rear edge toward the tip, Inserting a roll material support part into a hollow part of the roll material core and handling the roll material by human power; A roll material transport device comprising:

2. The grip support portion is The roll material having a winding diameter of 180 mm or less is provided with a reinforcing member that does not interfere with the joint portion.

2. The roll material carrier of claim 1 .

3. The base is A step portion is provided in the thickness direction from both the loading surface or the loading surface and the bottom surface at the tip portion opposite the grip portion, The step portion is inserted into the connecting member and fixed thereto; 3. The roll material carrier according to claim 1 or 2, characterized in that

4. The grip portion is The position of the grip support portion can be changed in the longitudinal direction of the roll material; 3. A roll material carrier according to claim 1 or 2.

5. The distance from the upper end of the grip to the loading surface of the base is Between 330mm and 370mm 3. The roll material carrier according to claim 1 or 2, characterized in that

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