Plate mounting device and plate mounting method

Abstract

To provide a plate mounting device capable of improving the efficiency of the work of mounting a splice plate on an upper flange and a lower flange.SOLUTION: A plate mounting device 1 is used to mount a plate P that connects beams to each other to a beam B. The plate mounting device 1 includes a base 2 that is long in the vertical direction, a lower adjustment unit 3 that is attached to a lower portion of the base 2, supports a lower plate P1 that is attached to a lower flange F1 of the beam B, and adjusts the horizontal position of the lower plate P1, and an upper adjustment unit 4 that is attached to an upper portion of the base 2, supports an upper plate P2 that is attached to an upper flange F2 of the beam B, and adjusts the height position of the upper plate P2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a plate mounting device and a plate mounting method, and more particularly to a plate mounting device and a plate mounting method used for mounting a plate that connects beams to each other to a beam. [Background technology]

[0002] Conventionally, at construction sites, the ends of multiple beams are joined together. The beams are, for example, H-shaped steel with flanges on the top and bottom of the web, and the ends of the beams are joined together by bridging the H-shaped steel with a splice plate and tightening it with bolts. Generally, beams are assembled in a factory with splice plates attached to the upper and lower flanges of one of the H-shaped steel beams to be joined (temporarily fastened).The beams are then transported from the factory to the construction site, where they are joined to columns or to each other.

[0003] When installing a splice plate in a factory, a worker adjusts the position of the mounting hole of the splice plate so that it matches the position of the flange hole of the beam material. Then, while supporting the splice plate with one hand, the worker inserts a bolt into the flange hole and the mounting hole, and fastens the splice plate to the flange with the bolt and nut, thereby temporarily fixing the splice plate to the flange. In this way, the worker must attach the splice plate to the flange of the beam while supporting the splice plate with one hand, which reduces work efficiency.

[0004] In order to improve the efficiency of the work, a splice plate installation jig is proposed in Patent Document 1. In the splice plate installation jig, the splice plate is placed on the upper side of the lower flange, and the splice plate is placed on two splice plate support rods, thereby supporting the splice plate and the splice plate. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-012791 A Summary of the Invention [Problem to be solved by the invention]

[0006] In recent years, the size of H-shaped steel used at construction sites has increased. As H-shaped steel has become larger, the size and weight of splice plates have also increased. When attaching a splice plate, which is a heavy object, to the lower flange, it is necessary to transport the splice plate near the lower flange using a cart and support the splice plate while attaching it. In addition, when attaching a splice plate, which is a heavy object, to the upper flange, crane work is required. Crane work requires work such as moving and slinging, which may reduce work efficiency. As a result of the increase in size of the splice plate, there has been a demand for improved work efficiency in attaching the splice plate to the lower flange and the upper flange.

[0007] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a plate mounting device and a plate mounting method that can improve the efficiency of the work of mounting a plate to an upper flange and a lower flange. [Means for solving the problem]

[0008] The above problem is solved by the plate mounting device of the present invention, which is used to attach plates that connect beams to each other to a beam, and which comprises a base that is long in the vertical direction, a lower adjustment unit attached to the lower part of the base, supporting a lower plate to be attached to the lower flange of the beam and capable of adjusting the horizontal position of the lower plate, and an upper adjustment unit attached to the upper part of the base, supporting an upper plate to be attached to the upper flange of the beam and capable of adjusting the height position of the upper plate. With the above-described configuration, the efficiency of the work of attaching the plate to the upper flange and the lower flange can be improved. More specifically, the plate mounting device of the present invention includes a lower adjustment unit for adjusting the horizontal position of the lower plate, and an upper adjustment unit for adjusting the height position of the upper plate. Therefore, the upper adjustment unit makes it possible to efficiently mount the upper plate to the beam without using a crane to mount the upper flange of the beam. Furthermore, the lower adjustment unit makes it possible to efficiently adjust the horizontal position of the lower plate relative to the lower flange following the operation of mounting the upper plate to the upper flange. Therefore, the lower plate can be efficiently mounted to the beam.

[0009] In this case, the lower adjustment unit has a lift member that rises and falls relative to the base, and a mounting member that is movable horizontally relative to the lift member and on which the lower plate is placed, and the upper adjustment unit has a hanging member that rises and falls relative to the base, and a holding member that is attached to the hanging member and holds the upper plate. With the above-mentioned configuration, the lower adjustment unit can easily adjust the height position of the lower plate by the lift member, and can easily adjust the horizontal position of the lower plate by the placement member. Furthermore, the upper adjustment unit can easily support the upper plate by the holding member, and can easily adjust the height position of the upper plate by the hanging member.

[0010] In this case, the mounting member has a base portion on which the lower plate is placed, and a moving portion capable of moving the base portion horizontally relative to the lift member, and the moving portion may be a caster attached to the base portion. With the above-described configuration, the horizontal position of the lower plate can be easily adjusted using the casters with a simple configuration.

[0011] In this case, the lift member has a fixed portion fixed to the base, a table portion on which the mounting member is placed, and a lifting portion for raising and lowering the table portion relative to the fixed portion, and the table portion has a frame-shaped stopper that protrudes upward from the upper surface of the table portion and surrounds the moving portion in the horizontal direction, and the moving portion is capable of moving horizontally within a frame surrounded by the frame-shaped stopper. With the above-described configuration, by providing the frame-shaped stopper on the lift member, it is possible to prevent the placement member from falling off the lift member when the horizontal position of the lower plate is adjusted by the placement member.

[0012] In this case, the lift member has a first annular portion penetrating in the vertical direction, the mounting member has a second annular portion arranged at a position overlapping the first annular portion when viewed from above and penetrating in the vertical direction, and the lower adjustment unit has a locking member penetrating the first annular portion and the second annular portion and restricting horizontal movement of the mounting member relative to the lift member. With the above-mentioned configuration, when the lower adjustment unit is not performing the horizontal position adjustment work, the mounting member can be fixed to the lift member, thereby preventing the mounting member from moving inadvertently when the base is moved or the height position of the upper unit is adjusted.

[0013] In this case, the holding member has an insertion portion extending in the vertical direction and capable of being inserted into a through hole formed in the upper plate, and a rotating portion rotatably attached to the lower end of the insertion portion, and the rotating portion is switchable between an insertion state in which it extends along the insertion portion and is inserted into the through hole formed in the upper plate, and a holding state in which it rotates from the insertion state relative to the insertion portion to hold the upper plate. With the above-described configuration, the upper plate can be easily supported with a simple structure.

[0014] In this case, the base has a base member that supports the lower adjustment unit, a support member extending upward from the base member, a ceiling member provided at the upper end of the support member, and a running member attached to the base member and allowing the base to run, and the hanging member is an electric balancer that is attached to the ceiling member, and a power supply support portion for supporting the power supply of the electric balancer is provided in the middle part of the support member in the vertical direction. With the above-mentioned configuration, the base can be easily moved horizontally by the running member. In addition, a remote control, which is required for lifting work, is not required, and the height position of the upper plate can be easily adjusted with a simple configuration. Furthermore, by providing the power supply for the electric balancer in the middle of the support column, the working space can be made larger. Also, by locating the electric balancer and the power supply in close proximity, the cable connecting the electric balancer and the power supply can be shortened, eliminating the need to pull an extra cable.

[0015] Furthermore, the above problem is solved by a plate mounting method using the plate mounting device of the present invention, which includes a holding step of holding the upper plate with the holding member, a lifting step of lifting the upper plate with the lifting member, an upper plate mounting step of attaching the upper plate to the upper flange of the beam material, a mounting step of placing the lower plate on the mounting member, a lower position adjustment step of adjusting the horizontal position of the lower plate with the mounting member, and a lower plate mounting step of attaching the lower plate to the lower flange of the beam material. With the above-described configuration, the efficiency of the work of attaching the plate to the upper flange and the lower flange can be improved.

[0016] In this case, in the placement process, the lower lower plate attached to the underside of the lower flange is placed on the placement member, and the upper lower plate attached to the upper side of the lower flange is placed higher than the lower lower plate via a spacer, and in the lower position adjustment process, the horizontal positions of the lower lower plate and the upper lower plate are adjusted by moving the placement member while the lower lower plate and the upper lower plate are spaced apart in the vertical direction by the spacer. With the above configuration, the horizontal positions of the lower lower plate (main plate) and the upper lower plate (additional plate) can be adjusted while the spacer is used to keep them apart. This makes it easy to position the main plate and the additional plate in a position to sandwich the lower flange. Effect of the Invention

[0017] According to the plate mounting device and the plate mounting method using the plate mounting device of the present invention, the efficiency of the work of mounting a plate to an upper flange and a lower flange can be improved. [Brief description of the drawings]

[0018] [Figure 1] 1 is a diagram showing a state in which a plate is attached to a beam material by the plate attachment device of this embodiment. FIG. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a perspective view of a lower adjustment unit. [Figure 4] FIG. 4 is a top view of the lower adjustment unit. [Diagram 5] FIG. 4 is a side view of the lower adjustment unit. [Figure 6] FIG. [Figure 7] FIG. 4 is a partial enlarged view of the upper adjustment unit. [Figure 8] FIG. 11 is a process diagram of a plate mounting method. [Figure 9] FIG. [Figure 10]FIG. [Figure 11] FIG. 13 is a diagram showing an upper position adjustment process. [Figure 12] 13A to 13C are diagrams showing an upper plate mounting process. [Figure 13] FIG. [Figure 14] FIG. 13 is a diagram showing a lower position adjustment process. [Figure 15] 11A and 11B are diagrams showing a lower plate mounting process. [Figure 16] FIG. 13 is a diagram showing a state in which the lower plate and the upper plate are held simultaneously. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, a plate mounting device 1 according to one embodiment of the present invention (hereinafter, this embodiment) will be described with reference to Figs. 1 to 16. In the following description, as shown in Fig. 1, the "up-down direction" refers to the up-down direction when lifting the plate P. Furthermore, the "front-rear direction" refers to the front-rear direction when looking at the beam B side from the plate mounting device 1 side. Furthermore, the "left-right direction" refers to the direction perpendicular to the "up-down direction" and the "front-rear direction", and refers to the left-right direction when looking at the beam B side from the plate mounting device 1 side.

[0020] <Plate mounting device> As shown in FIG. 1, the plate attachment device 1 is used to attach a plate P to a beam B for connecting columns or beams together. In detail, the plate mounting device 1 is a device used for mounting a lower plate P1 to a lower flange F1, which is the lower flange F of the beam B, and for mounting an upper plate P2 to an upper flange F2, which is the upper flange F of the beam B.

[0021] Here, the beam B and the plate P will be described in detail. The beam B is, for example, a steel beam member made of H-shaped steel, and a plurality of beams B are joined at the construction site. A long steel beam is formed by joining the ends of the plurality of beams B to each other. The beams B are joined to each other by plates P that connect the columns or beams together. For example, a plurality of beams B are joined to each other by bolting the ends of the flanges F together via the plates P.

[0022] Beam B is in a state where plate P is attached to the flange F of beam B to be joined (temporarily fastened) at a steel beam component factory. Then, beam B is transported from the factory to the construction site with plate P attached to flange F, and beam B is joined to a column or other beams at the construction site by bolting plate P.

[0023] The plate P is, for example, a splice plate, which is a long steel plate-like member for connecting beams together. The plate P is mainly composed of a lower plate P1 attached to the lower flange F1 and an upper plate P2 attached to the upper flange F2.

[0024] The lower plate P1 is composed of a lower main plate P11 (lower lower plate) attached to the lower side of the lower flange F1, and a lower auxiliary plate P12 (upper lower plate) attached to the upper side of the lower flange F1. At the construction site, for example, the lower main plate P11 is bolted to the underside of the lower flange F1, and the lower support plate P12 is bolted to the upper side of the lower flange F1, thereby joining the beams together.

[0025] The lower main plate P11 is attached to the lower surface of the lower flange F1 by a fastener A such as a bolt. The weight of the lower main plate P11 is, for example, about 50 kg per plate. The lower main plate P11 is formed with a mounting hole P11a for inserting the fastener A therethrough. The lower support plate P12 is obtained by dividing the lower main plate P11 into two in the longitudinal direction. The lower support plate P12 is attached to the upper surface of the lower flange F1 by a fastener A at a position where it sandwiches the web W. The lower support plate P12 is formed with a mounting hole P12a for inserting the fastener A therethrough.

[0026] The lower main plate P11 and the lower support plate P12 are attached to the lower flange F1 while being spaced apart in the vertical direction. In other words, the lower main plate P11 and the lower support plate P12 are attached to the lower flange F1 by the fastener A so as to sandwich the lower flange F1 from above and below while being spaced apart by the thickness of the lower flange F1.

[0027] The upper plate P2 is composed of an upper main plate P21 (upper upper plate) attached to the upper side of the upper flange F2, and an upper attachment plate P22 (upper lower plate) attached to the upper side of the upper flange F2. At the construction site, for example, the upper main plate P21 is bolted to the upper side of the upper flange F2, and the upper attachment plate P22 is bolted to the lower side of the upper flange F2, thereby joining the beams together.

[0028] The upper main plate P21 is attached to the upper surface of the upper flange F2 by fasteners A such as bolts and nuts. The weight of the upper main plate P21 is, for example, about 50 kg per plate. The upper main plate P21 is formed with mounting holes P21a for inserting the fasteners A therethrough. The upper support plate P22 is obtained by dividing the upper main plate P21 into approximately two in the longitudinal direction. The upper support plate P22 is attached to the upper surface of the upper main plate P21 by a fastener A at a position where the upper support plate P22 sandwiches the web W. The upper support plate P22 is formed with a mounting hole P22a for inserting the fastener A therethrough.

[0029] In this embodiment, an example will be described in which the plate mounting device 1 is used in a factory to temporarily fasten the plate P to the flange F of the beam B. However, the plate mounting device 1 is not limited to this, and may be used when joining beams B to each other at a construction site or when joining a beam B to a column. In the present embodiment, an example will be described in which the upper main plate P21 and the upper attachment plate P22 are attached to the upper side of the upper flange F2. However, the present invention is not limited to this, and the upper main plate P21 may be attached to the upper side of the upper flange F2, and the upper attachment plate P22 may be attached to the lower side of the upper flange F2. 1 and 9, an example will be described in which a splice plate (web plate P3) is attached in advance to the web W of the beam material B. However, the plate attachment device 1 is not limited to this, and may be used to attach the web plate P3 to the web W of the beam material B.

[0030] As shown in FIG. 1, the plate attachment device 1 is installed on a factory floor and is used to attach a plate P to a beam B placed on a workbench. The plate mounting device 1 mainly comprises a base 2 that is long in the vertical direction, a lower adjustment unit 3 that is attached to the lower part of the base 2, supports a lower plate P1 to be attached to the lower flange F1 of the beam B, and can adjust the horizontal position of the lower plate P1, and an upper adjustment unit 4 that is attached to the upper part of the base 2, supports an upper plate P2 to be attached to the upper flange F2 of the beam B, and can adjust the height position of the upper plate P2.

[0031] The lower plate P1 is supported by the lower adjustment unit 3 and is moved vertically and horizontally to be attached to the lower flange F1. The upper plate P2 is supported by the upper adjustment unit 4 and is moved vertically and horizontally to be attached to the upper flange F2. Since the worker can easily adjust the positions of the lower plate P1 and the upper plate P2 by using the plate mounting device 1, even if the plate P is a heavy object, the plate P can be easily mounted to the flange F. Therefore, the efficiency of the work of mounting the plate P to the beam material B is improved.

[0032] <Base> 1 and 2, the base 2 is a vertically long frame and has a generally U-shape with an open front side in side view. The base 2 has a base member 10 that supports the lower adjustment unit 3, a support member 20 that extends upward from the base member 10, a ceiling member 30 provided on the upper end of the support member 20, and a running member 40 that is attached to the base member 10 and allows the base 2 to run.

[0033] 1 and 2, the base member 10 is composed of a plurality of long rectangular tubular members, and supports the lower adjustment unit 3 from below. A running member 40 is attached to the lower surface of the base member 10.

[0034] 1 and 2, the support member 20 is composed of a long rectangular tubular member extending in the vertical direction, and supports the ceiling member 30. The support member 20 has a right support portion 21 extending upward from the right side of the rear end portion 10a of the base member 10, and a left support portion 22 extending upward from the left side of the rear end portion 10a of the base member 10.

[0035] A power supply support part 23 for placing a power supply 85 of a hanging member 80 (described later) is provided in a vertical intermediate part 20a of the support member 20. By placing the power supply 85 on the power supply support part 23, the base 2 can be moved more easily than in the case where the power supply 85 is placed directly on the floor. In addition, because the power supply support part 23 is provided in the vertical intermediate part 20a of the support member 20, it is possible to save space more than in the case where the power supply 85 is placed on the base member 10.

[0036] The power supply support part 23 is a plate-like member having a power supply support surface 23a, and is fixed to the right support part 21 and the left support part 22 so as to span between the right support part 21 and the left support part 22. Since the power supply support surface 23a is disposed forward of the right support part 21 and the left support part 22, it is possible to prevent the worker from coming into contact with the power supply 85 when the worker moves the base 2 behind the base 2.

[0037] A gripping portion 24 for an operator to grip is provided at an intermediate portion 20a of the support member 20. The grip portion 24 is a rod-shaped member having a substantially L-shape in a side view, and is provided on each of the right support portion 21 and the left support portion 22. The grip portion 24 is provided at a position below the power supply support portion 23, and is fixed to the right support portion 21 and the left support portion 22.

[0038] 1 and 2, the ceiling member 30 is composed of multiple long rectangular tubular members, and supports the upper adjustment unit 4 from above. The ceiling member 30 is provided on the upper ends of the right support column 21 and the left support column 22, and extends forward from the right support column 21 and the left support column 22. The ceiling member 30 has an attachment portion 31 for attaching the upper adjustment unit 4. The attachment portion 31 is provided at a middle portion 30a in the front-rear direction. A front end portion 30b of the ceiling member 30 is supported on the middle portion 20a of the support member 20 by a reinforcing portion 32.

[0039] 1 and 2, the running member 40 is composed of a plurality of running casters and supports the base member 10 from below. The running member 40 is attached to the lower surface of the base member 10 and supports the base member 10 so that it can run. An operator can adjust the horizontal position of the plate P relative to the beam B by gripping the gripping portion 24 and moving the base 2 relative to the beam B by the traveling member 40.

[0040] <Lower adjustment unit> As shown in Figs. 1 to 5, the lower adjustment unit 3 is attached to the lower portion of the base 2, supports the lower plate P1 from below, and adjusts the horizontal position or height position of the lower plate P1. As shown in Figure 3, the lower adjustment unit 3 has a lift member 50 that rises and falls relative to the base 2, a mounting member 60 that is movable horizontally relative to the lift member 50 and supports the lower plate P1, and a locking member 70 that restricts the horizontal movement of the mounting member 60 relative to the lift member 50.

[0041] The lower plate P1 is supported from below by the mounting member 60. The height position of the lower plate P1 is adjusted by moving the lower plate P1 in the vertical direction by the lift member 50. The horizontal position of the lower plate P1 is adjusted by moving the lower plate P1 in the horizontal direction by the mounting member 60. Then, the height position and horizontal position of the lower plate P1 relative to the beam B are adjusted, whereby the lower plate P1 is attached to the lower flange F1. An operator can easily adjust the height position and horizontal position of the lower plate P1 by raising and lowering the lift member 50 of the lower adjustment unit 3 and moving the placement member 60 horizontally.

[0042] The lift member 50 is, for example, a known hydraulic table lifter, which supports the mounting member 60 from below and raises and lowers the mounting member 60 relative to the base 2. In other words, the lift member 50 raises and lowers the lower plate P1 placed on the mounting member 60 relative to the base 2. As shown in Figures 3 to 5, the lift member 50 has a fixed portion 51 fixed to the base 2, a table portion 52 on which the mounting member 60 is placed, a lifting portion 53 for raising and lowering the table portion 52 relative to the fixed portion 51, a first annular portion 54 provided on the table portion 52, and a storage portion 55 for storing items such as tools.

[0043] 3 and 5, the fixed part 51 is fixed to the upper surface of the base member 10 by bolts, welding, or the like. A lifting part 53 is provided on the upper surface of the fixed part 51. A pedal 53d and a lever 53e for operating a hydraulic cylinder 53c of the lifting part 53, which will be described later, are attached to a rear end part 51a of the fixed part 51. In addition, a storage part 55 is attached to the rear end part 51a of the fixed part 51.

[0044] As shown in FIGS. 3 to 5, the table portion 52 is a table-shaped member, and has a table upper surface 52a on which the mounting member 60 is placed. The table portion 52 is attached to the upper portion of the lifting portion 53, and is raised and lowered steplessly by the operation of the lifting portion 53 between a lowered position indicated by a two-dot chain line in FIG.

[0045] The table portion 52 has a frame-shaped stopper 52b protruding upward from the table upper surface 52a. As shown in Fig. 4, the frame-shaped stopper 52b is provided at a position that surrounds a moving portion 62 (described later) of the mounting member 60 in the horizontal direction, and is attached to the table upper surface 52a. More specifically, four frame-shaped stoppers 52b are provided at positions covering the moving parts 62 provided at the four corners of the mounting member 60 from the outside in the horizontal direction, and are spaced apart from the moving parts 62.

[0046] In this way, since the moving part 62 can move in the horizontal direction within the frame surrounded by the frame-shaped stopper 52b, the mounting member 60 can move in the front-rear and left-right directions inside the frame-shaped stopper 52b. The frame-shaped stopper 52b can prevent the mounting member 60 from falling off the table part 52 of the lift member 50. Moreover, by dividing the frame-shaped stopper 52b into four, it is possible to suppress the dropping of the mounting member 60 with a simple configuration. Note that the frame-shaped stopper 52b may be configured to completely surround the periphery of the moving part 62 by forming a single annular member.

[0047] 5, the lifting unit 53 is provided on the fixed unit 51 and has a leg 53b that is substantially X-shaped in a side view and rotates around a fulcrum shaft 53a, and a hydraulic cylinder 53c for rotating the leg 53b. The table unit 52 is attached to the upper end of the leg 53b. The lifting unit 53 also has a pedal 53d that activates the hydraulic cylinder 53c to raise the table unit 52, and a lever 53e that lowers the table unit 52. The worker can raise the table unit 52 by stepping on the pedal 53d. In addition, the raised table unit 52 can be lowered by operating the lever 53e.

[0048] 5, the first annular portion 54 is a ring-shaped member having a first through hole 54a that penetrates in the up-down direction, and is fixed to the table upper surface 52a. A locking member 70 is inserted into the first through hole 54a.

[0049] 3, the storage section 55 is provided for storing items such as tools. The storage section 55 has a storage box 55a capable of storing items, a storage mounting plate 55b to which the storage box 55a is detachably attached, and a storage support section 55c that supports the storage mounting plate 55b. The storage box 55a is a box-shaped member capable of storing items such as tools and the locking member 70, and is detachably attached to the storage attachment plate 55b. The storage attachment plate 55b is a plate-shaped member that is long in the left-right direction, and is attached to the storage support part 55c. The storage support part 55c is a rod-shaped member that is approximately inverted U-shaped and long in the up-down direction when viewed from the front, and is attached to the rear end part 51a of the fixing part 51.

[0050] The mounting member 60 supports the lower plate P1 from below, and moves horizontally relative to the table portion 52 of the lift member 50. In other words, the mounting member 60 supports the lower plate P1, and moves the lower plate P1 horizontally relative to the base 2. As shown in Figures 3 to 5, the mounting member 60 has a base portion 61 on which the lower plate P1 is placed, a moving portion 62 that can move the base portion 61 horizontally relative to the lift member 50, and a second annular portion 63 provided on the base portion 61.

[0051] 3, the base portion 61 has a "K" shape (two E's placed back to back) when viewed from above, and supports the lower plate P1 from below. Making the base portion 61 into a "K" shape increases the stability of the lower plate P1 while ensuring a working space when attaching the fastener A to the lower plate P1 and the lower flange F1. Note that the shape of the base portion 61 is not limited to this, and it may be an H-shape, an E-shape, a straight line, etc.

[0052] 3, the moving parts 62 are casters, for example, multiple ball casters, attached to the underside of the base part 61. To be more specific, four moving parts 62 are attached to the underside of the base part 61 at the four corners, and one moving part 62 is attached to the underside of the center part of the base part 61. As shown in Fig. 5, the frame-shaped stopper 52b is formed at approximately the same height as the moving part 62. Therefore, as shown in Fig. 4, the moving part 62 is movable inside the frame-shaped stopper 52b in the horizontal direction. In this manner, the moving part 62 abuts against the inside of the frame-shaped stopper 52b in the horizontal direction, so that the mounting member 60 can move stably on the lift member 50.

[0053] 5, the second annular portion 63 is a ring-shaped member having a second through hole 63a penetrating in the up-down direction, and is fixed to the rear end surface 61a of the base portion 61. The second annular portion 63 is provided at a position overlapping with the first annular portion 54 in a top view. In other words, the first through hole 54a and the second through hole 63a are disposed at a position where they overlap vertically. A locking member 70 is inserted into the second through hole 63a.

[0054] The locking member 70 penetrates the first annular portion 54 and the second annular portion 63, and restricts the horizontal movement of the mounting member 60 relative to the lifting member 50. More specifically, the locking member 70 is inserted into the first through hole 54a of the first annular portion 54 and the second through hole 63a of the second annular portion 63, and restricts the horizontal movement of the base portion 61 relative to the table portion 52. In this way, when the lower adjustment unit 3 is not performing adjustment of the horizontal position of the lower plate P1, the locking member 70 can be inserted through the first annular portion 54 and the second annular portion 63 to fix the mounting member 60 to the lift member 50. Therefore, it is possible to prevent the mounting member 60 from moving inadvertently when the base 2 is moved or the height of the upper adjustment unit 4 is adjusted.

[0055] <Upper adjustment unit> As shown in Figs. 1, 2 and 6, the upper adjustment unit 4 is attached to the upper portion of the base 2, supports the upper plate P2 from above, and adjusts the height position of the upper plate P2. As shown in FIG. 6, the upper adjustment unit 4 has a hanging member 80 that rises and falls relative to the base 2, and a holding member 90 that is attached to the hanging member 80 and holds the upper plate P2.

[0056] The upper plate P2 is supported from above by a holding member 90. The upper plate P2 held by the holding member 90 is moved up and down by the hanging member 80, thereby adjusting the height position of the upper plate P2. Furthermore, the base 2 is moved horizontally by the traveling member 40, thereby adjusting the horizontal position of the upper plate P2. Then, by adjusting the height position and horizontal position of the upper plate P2 relative to the beam B, the upper plate P2 is attached to the upper flange F2.

[0057] An operator can easily adjust the height and horizontal positions of the upper plate P2 by raising and lowering the upper adjustment unit 4 using the hanging members 80 and by moving the base 2 horizontally. In this embodiment, the horizontal position of the upper plate P2 is configured to be adjusted by the base 2, but this is not limited to the above. For example, the hanging member 80 may be attached movably to the ceiling member 30 of the base 2. The upper adjustment unit 4 may be configured to adjust the horizontal position of the upper plate P2 by moving the hanging member 80.

[0058] The hanging member 80 is, for example, an electric balancer. As shown in Fig. 6, the hanging member 80 is attached to the ceiling member 30 of the base 2, supports the holding member 90 from above, and raises and lowers the holding member 90 relative to the base 2. In other words, the hanging member 80 raises and lowers the upper plate P2 held by the holding member 90 relative to the base 2.

[0059] As shown in Figure 6, the hanging member 80 has a main body 81 of an electric balancer, a connection portion 82 extending downward from the main body 81, a coupling portion 83 provided at the lower end of the connection portion 82, an attachment portion 84 for attaching the main body 81 to the attachment portion 31 of the ceiling member 30, a power source 85 for operating the main body 81, and a cable 86 connecting the main body 81 and the power source 85.

[0060] The main body 81 is suspended from the ceiling member 30 of the base 2 by attaching the attachment portion 84 to the attachment receiving portion 31. The attachment portion 84 may be attached to the ceiling member 30 of the base 2 so as to be movable in the front-rear or left-right directions. The main body 81 includes a drive motor 81a therein, and is configured to use the drive motor 81a to wind and unwind the connection portion 82. The main body 81 has a balance function that can hold the holding member 90 and the upper plate P2 in a state close to zero gravity when the holding member 90 and the upper plate P2 are suspended from the connection portion 82.

[0061] The connection part 82 is, for example, a metal chain, and is a string-like long member having the strength to suspend the holding member 90. The connection part 82 extends downward from the main body part 81, and a linking part 83 is attached to the lower end part. The connecting portion 83 is, for example, a metal hook, and detachably connects the holding member 90. The upper plate P2 is supported by the connection portion 82 via the holding member 90 and the connecting portion 83, and moves in the vertical direction relative to the main body portion 81 as the connection portion 82 moves. The mounting portion 84 is, for example, a metal hook, and is detachably attached to the mounting portion 31 of the ceiling member 30.

[0062] The power supply 85 is a battery device for driving the drive motor 81 a of the main body 81 , and is placed on the power supply support portion 23 of the base 2 . The cable 86 is a power cable for electrically connecting the main body 81 and the power source 85. The cable 86 may be wound around the support member 20 so as not to get in the way when adjusting the position of the upper plate P2.

[0063] In this way, by using the hanging member 80 as an electric balancer, the vertical position of the upper plate P2 can be easily adjusted even when the upper plate P2 is a heavy object. In addition, by using the hanging member 80 as an electric balancer, remote control operation for raising and lowering the upper plate P2 is not required, improving work efficiency. The hanging member 80 is not limited to an electric balancer, but may be an electric hoist, an electric chain block, or a manual chain block.

[0064] 6 and 7, the holding member 90 is attached to the connecting portion 83 of the hanging member 80 and serves to hold the upper plate P2 so that it can be raised and lowered. A plurality of holding members 90 are provided on the connecting portion 83 via connecting plates 90a for connecting to the connecting portion 83. Although two holding members 90 are provided for the connecting portion 83, the number may be one, or three or more, as long as the upper plate P2 can be suspended in a well-balanced manner. Furthermore, the holding member 90 is attached to the connecting portion 83 via a connecting plate 90a, but may be attached to the connecting portion 83 directly.

[0065] As shown in FIG. 7, the holding member 90 has an insertion portion 91 extending in the vertical direction, and a rotating portion 92 rotatably attached to the lower end of the insertion portion 91. The rotating portion 92 extends along the insertion portion 91 and is switchable between an insertion state in which it is inserted into mounting holes P21a, P22a formed in the upper plate P2 and a holding state in which it rotates from the insertion state relative to the insertion portion 91 and holds the upper plate P2 from below. In other words, the holding member 90 has a substantially L-shape in side view when the rotating portion 92 is in the holding state, and has a substantially I-shape in side view when the rotating portion 92 is in the insertion state.

[0066] 7, the insertion portion 91 is a metal member that is elongated in the vertical direction and has a generally U-shaped cross section when viewed from above. The insertion portion 91 is formed to a size that allows it to be inserted into the mounting hole P21a of the upper main plate P21 and the mounting hole P22a of the upper add-on plate P22. A connection ring 91a is provided at the upper end of the insertion portion 91. The connection ring 91a is attached to a connection hole 90b formed in a lower portion of the connection plate 90a, whereby the holding member 90 is suspended from the connection portion 83 of the hanging member 80 via the connection plate 90a.

[0067] 7, the rotating part 92 is a metal member that is elongated in the front-rear direction and has a generally U-shaped cross section when viewed from the front. The rotating part 92 is attached to the lower end of the insertion part 91 so as to be rotatable about a rotating shaft 92a that extends in the left-right direction. Normally, the rotating portion 92 is in a held state, and when an operator rotates the rotating portion 92 relative to the insertion portion 91, the rotating portion 92 is switched from the held state to the inserted state. The rotating portion 92 in the inserted state is stored in the internal space of the insertion portion 91. The rotating portion 92 is inserted through the mounting hole P21a of the upper main plate P21 and the mounting hole P22a of the upper add-on plate P22, and then switched to a holding state, thereby supporting the upper plate P2 from below.

[0068] Thus, the plate mounting device 1 of the present invention includes a lower adjustment unit 3 for adjusting the horizontal position of the lower plate P1, and an upper adjustment unit 4 for adjusting the height position of the upper plate P2. Therefore, the upper adjustment unit 4 makes it possible to efficiently mount the upper plate P2 to the upper flange F2 without the need for a large-scale crane operation. In addition, the lower adjustment unit 3 makes it possible to adjust the horizontal position of the lower plate P1 following the operation of mounting the upper plate P2 to the upper flange F2, and therefore allows the lower plate P1 to be efficiently mounted to the lower flange F1.

[0069] <Method of mounting a plate using a plate mounting device> Next, a method for attaching the plate P using the plate attachment device 1 will be described with reference to Fig. 8 to Fig. 16. In this embodiment, an example will be described in which the plate P is temporarily fixed to the flange F of the beam material B using the plate attachment device 1 in a factory.

[0070] As shown in FIG. 8, this method includes a "holding process (S1)", a "lifting process (S2)", an "upper position adjustment process (S3)", an "upper plate attachment process (S4)", a "placing process (S5)", a "lower position adjustment process (S6)", and a "lower plate attachment process (S7)". Regarding the other steps in the mounting operation of the plate P, a description thereof will be omitted.

[0071] The order of each process is not limited to this. For example, the worker may first adjust the position of the lower plate P1 and perform the installation work, or may adjust the positions of both the upper and lower plates P and then install each plate P. The worker may also use the plate installation device 1 to install the lower plate P1 and the upper plate P2 at the same time. In addition, in this embodiment, the web plate P3 is attached to the web W of the beam B in advance, but the worker may attach the web plate P3 to the web W of the beam B using the plate attachment device 1.

[0072] As shown in FIG. 9, a worker attaches a plate P to a beam B placed on a workbench (not shown) using a plate attachment device 1 installed on the factory floor. A flange hole F1a for inserting the fastener A is formed in the lower flange F1 of the flange F. In addition, a flange hole F2a for inserting the fastener A is formed in the upper flange F2 of the flange F. The worker adjusts the positions of the lower plate P1 and the upper plate P2 relative to the beam B, inserts the fastener A into the flange holes F1a, F2a, and attaches the plate P to the beam B. In each step, the worker appropriately moves the base 2 to a location where the work can be easily performed.

[0073] In the "holding step (S1)", as shown in Fig. 9, a worker holds the upper plate P2 with a holding member 90. More specifically, the worker switches the rotating portion 92 from a holding state to an insertion state by rotating the rotating portion 92 relative to the insertion portion 91. Then, the worker inserts the insertion portion 91 and the rotating portion 92 in the insertion state into the mounting holes P21a, P22a of the upper plate P2. After that, the worker switches the rotating portion 92 to the holding state and causes the holding member 90 to support the upper plate P2.

[0074] In the "lifting step (S2)", as shown in FIG. 10, a worker lifts the upper plate P2 with the lifting members 80. More specifically, the worker grips the upper plate P2 and lifts it up to the mounting position of the upper plate P2. At this time, the force lifting the upper plate P2 is assisted by the drive motor 81a of the main body 81, so that the worker can easily lift the upper plate P2 up to the mounting position. In this way, by lifting the upper plate P2 with the lifting members 80, the worker can easily adjust the vertical position of the upper plate P2.

[0075] In the "upper position adjustment process (S3)", as shown in Fig. 11, a worker adjusts the horizontal position of the upper plate P2 using the traveling member 40. More specifically, while the upper plate P2 is in a lifted state, the worker grasps the gripping portion 24 to move the base 2 and adjust the horizontal position of the upper plate P2. Specifically, the worker positions the mounting holes P21a, P22a of the upper main plate P21 and the upper attachment plate P22 so that they overlap vertically with the flange hole F2a of the upper flange F2. In this way, the worker can move the base 2 using the traveling member 40 and easily adjust the horizontal position of the upper plate P2.

[0076] The upper position adjusting step (S3) may be performed before the holding step (S1) or the lifting step (S2). When the suspending member 80 is provided movably with respect to the base 2, the worker may adjust the horizontal position of the upper plate P2 by moving the suspending member 80 in the horizontal direction. Furthermore, when it is not necessary to adjust the horizontal position of the upper plate P2 in the upper position adjusting step (S3), only the adjustment of the height position of the upper plate P2 in the lifting step (S2) may be performed.

[0077] In the "upper plate attachment process (S4)", as shown in Fig. 12, a worker attaches the upper plate P2 to the upper flange F2 of the beam material B. In detail, the worker inserts fasteners A such as bolts through the respective attachment holes P21a, P22a of the upper main plate P21 and the upper attachment plate P22 and the flange hole F2a of the upper flange F2, and fastens the nuts to attach the upper plate P2 to the upper flange F2.

[0078] 13, in the "mounting step (S5)", an operator places the lower plate P1 on the mounting member 60. More specifically, the operator places the lower main plate P11, which is attached to the underside of the lower flange F1, on the base portion 61 of the mounting member 60. Then, the operator places the lower auxiliary plate P12, which is attached to the upper side of the lower flange F1, above the lower main plate P11, via a spacer S.

[0079] The spacer S is a rubber-like elastic member, and is interposed between the lower main plate P11 and the lower support plate P12. The spacer S has spacer holes that penetrate vertically, and is temporarily fixed to the lower main plate P11 and the lower support plate P12 by bolts. The worker first places the lower main plate P11 on the base portion 61 of the mounting member 60. Then, the worker places the spacer S on the upper surface of the lower main plate P11, and places the lower support plate P12 on the spacer S. After that, the worker inserts bolts into the mounting holes P11a, P12a and the spacer holes of the lower main plate P11 and the lower support plate P12, and tightens the nuts. In this way, the spacer S can easily maintain the distance between the lower main plate P11 and the lower support plate P12.

[0080] In the "lower position adjustment step (S6)", the worker adjusts the height position or horizontal position of the lower plate P1 using the mounting member 60. More specifically, the worker operates the lifting unit 53 of the lift member 50 while the lower plate P1 is placed on the base 61 of the mounting member 60 to adjust the height position of the lower plate P1. Specifically, the worker steps on the pedal 53d of the lifting unit 53 to drive the hydraulic cylinder 53c, and rotates the leg 53b to raise the table unit 52 so that the lower plate P1 is at approximately the same height as the lower flange F1. In this way, the worker can easily adjust the height position of the lower plate P1 while the lower plate P1 is placed on the base 61. In the lower position adjusting step (S6), when there is no need to adjust the height position of the lower plate P1, only the horizontal position of the lower plate P1 may be adjusted.

[0081] In the "lower position adjustment step (S6)", the worker moves the base 2 by the traveling member 40 to a position where it is easy to adjust the horizontal position of the lower plate P1. Then, the worker pulls out the locking member 70 from the first annular portion 54 and the second annular portion 63 to release the lock so that the mounting member 60 can move relative to the lift member 50. The pulled-out locking member 70 may be stored in the storage box 55a of the storage section 55. 14, while the lower plate P1 is placed on the base portion 61, the worker moves the base portion 61 to adjust the horizontal position of the lower plate P1. Specifically, the worker positions the mounting holes P11a, P12a of the lower main plate P11 and the lower support plate P12 so that they overlap vertically with the flange hole F1a of the lower flange F1. The worker can move the base portion 61 using the moving part 62 to easily adjust the horizontal position of the lower plate P1.

[0082] At this time, the worker adjusts the horizontal positions of the lower main plate P11 and the lower add-on plate P12 by moving the mounting member 60 while the lower main plate P11 and the lower add-on plate P12 are vertically separated by the spacer S. By adjusting the horizontal positions of the lower main plate P11 and the lower add-on plate P12 via the spacer S in this way, the lower main plate P11 and the lower add-on plate P12 can be easily positioned at a position where they sandwich the lower flange F1.

[0083] In the "lower plate attachment process (S7)", as shown in Fig. 15, a worker attaches the lower plate P1 to the lower flange F1 of the beam material B. In detail, the worker inserts fasteners A such as bolts through the respective attachment holes P11a, P12a of the lower main plate P11 and the lower auxiliary plate P12 and the flange hole F1a of the lower flange F1, and fastens the nuts to attach the lower plate P1 to the lower flange F1.

[0084] Thus, in the mounting method of the plate P using the plate mounting device 1 of the present invention, the upper adjustment unit 4 makes it possible to efficiently mount the upper plate P2 to the upper flange F2 without requiring a large-scale crane operation. Also, the lower adjustment unit 3 makes it possible to adjust the horizontal position of the lower plate P1 relative to the lower flange F1 following the operation of mounting the upper plate P2 to the upper flange F2, thereby enabling the lower plate P1 to be efficiently mounted to the lower flange F1.

[0085] 16, when the lower plate P1 and the upper plate P2 are attached at the same time, the worker performs a "placing step (S5)" before the "upper position adjustment step (S3)", and causes the plate attachment device 1 to hold the lower plate P1 and the upper plate P2. Then, the worker moves the base 2 to simultaneously perform the "upper position adjustment step (S3)" and "upper plate attachment step (S4)" and the "lower position adjustment step (S6)" and "lower plate attachment step (S7)". The worker may hold the upper plate P2 in a state in which the lower plate P1 is placed on the mounting member 60, or may place the lower plate P1 on the mounting member 60 in a state in which the upper plate P2 is being held.

[0086] <Other embodiments> The plate attachment device and the plate attachment method using the plate attachment device of the present invention are not limited to the above embodiment. In this embodiment, the case where a splice plate is attached as the plate P is described as an example. However, the present invention is not limited to this, and is also suitable for attaching plate members other than splice plates, or pillar members, cylindrical members, etc. other than plate members.

[0087] In the above embodiment, the plate mounting device and the plate mounting method using the plate mounting device according to the present invention have been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0088] 1 Plate mounting device 2 Base 3 Lower adjustment unit 4 Upper adjustment unit 10 Base material 10a Base rear end 20 Support member 20a middle part 21 Right support column 22 Left pillar part 23 Power supply support part 23a Power support surface 24 Gripping part 30 Ceiling materials 30a middle part 30b Front end 31 Mounting part 32 Reinforcement 40 Running member 50 Lifting materials 51 Fixed part 51a Rear end 52 Table section 52a Table top 52b Frame-shaped stopper 53 Lifting section 53a Fulcrum shaft 53b Legs 53c Hydraulic cylinder 53d Pedal 53e Lever 54 First Circular Section 54a First through hole 55 Storage section 55a Storage box 55b Storage mounting plate 55c Storage support part 60 Mounting member 61 Pedestal 61a Rear end surface 62 Mobile section 63 Second Circular Section 63a Second through hole 70 Locking member 80 Suspension members 81 Main body 81a Drive motor 82 Connection 83 Connecting part 84 Mounting part 85 Power supply 86 Cable 90 Retaining member 90a connection plate 90b connection hole 91 Insertion part 91a Connecting ring 92 Rotating part 92a Rotating shaft A Fixture B Beam material F flange F1 Lower flange F1a flange hole F2 Upper flange F2a flange hole W Web P-Plate P1 Lower plate P11 Shimomoto Plate P11a mounting hole P12 Lower plate P12a mounting hole P2 Upper plate P21 Uemoto Plate P21a mounting hole P22 Top Plate P22a mounting hole P3 Web Plate S Spacer

Claims

1. A plate mounting device used to mount a plate that connects beams to each other, A vertically long base and a lower adjustment unit attached to a lower portion of the base, supporting a lower plate to be attached to a lower flange of the beam, and capable of adjusting a horizontal position of the lower plate; a top adjustment unit attached to an upper portion of the base, supporting an upper plate to be attached to an upper flange of the beam, and capable of adjusting the height position of the upper plate.

2. The lower adjustment unit has a lift member that moves up and down relative to the base, and a placement member that is horizontally movable relative to the lift member and places the lower plate thereon, 2. The plate attachment device according to claim 1, wherein the upper adjustment unit has a hanging member that rises and falls relative to the base, and a holding member that is attached to the hanging member and holds the upper plate.

3. The mounting member has a base portion on which the lower plate is mounted and a moving portion capable of moving the base portion in a horizontal direction relative to the lift member, The plate mounting device according to claim 2 , wherein the moving portion is a caster attached to the base portion.

4. the lift member has a fixed portion fixed to the base, a table portion on which the mounting member is placed, and a lifting portion that lifts and lowers the table portion relative to the fixed portion, the table portion has a frame-shaped stopper that protrudes upward from an upper surface of the table portion and surrounds the moving portion in a horizontal direction, 4. The plate attachment device according to claim 3, wherein the moving portion is movable in a horizontal direction within a frame surrounded by the frame-shaped stopper.

5. The lift member has a first annular portion that penetrates in the vertical direction, the mounting member has a second annular portion that is provided at a position overlapping the first annular portion in a top view and penetrates in a vertical direction, 3. The plate mounting device according to claim 2, wherein the lower adjustment unit has a locking member that penetrates the first annular portion and the second annular portion and restricts horizontal movement of the placement member relative to the lift member.

6. the holding member has an insertion portion extending in a vertical direction and capable of being inserted into a through hole formed in the upper plate, and a rotating portion rotatably attached to a lower end of the insertion portion, The plate mounting device according to claim 2, characterized in that the rotating portion is switchable between an insertion state in which it extends along the insertion portion and is inserted into the through hole formed in the upper plate, and a holding state in which it rotates from the insertion state relative to the insertion portion to hold the upper plate from below.

7. The base includes a base member that supports the lower adjustment unit, a support member that extends upward from the base member, a ceiling member that is provided on an upper end of the support member, and a running member that is attached to the base member and runs the base; The hanging member is an electric balancer attached to the ceiling member, 3. The plate attachment device according to claim 2, wherein a power supply support portion for supporting a power supply of the electric balancer is provided at a vertical intermediate portion of the support member.

8. A method for mounting a plate using the plate mounting device according to claim 2, comprising the steps of: a holding step of holding the upper plate by the holding member; a lifting step of lifting the upper plate by the lifting member; an upper plate attachment process for attaching the upper plate to the upper flange of the beam; a placing step of placing the lower plate on the placing member; a lower position adjustment step of adjusting a horizontal position of the lower plate by the mounting member; and a lower plate attaching step of attaching the lower plate to the lower flange of the beam material.

9. In the placing step, a lower plate attached to a lower side of the lower flange is placed on the placement member, and an upper plate attached to an upper side of the lower flange is placed above the lower plate via a spacer; The plate mounting method described in claim 8, characterized in that in the lower position adjustment process, the horizontal positions of the lower lower plate and the upper lower plate are adjusted by moving the mounting member while the lower lower plate and the upper lower plate are spaced apart in the vertical direction by the spacer.

Images