JP2014084580A - Scaffold and beam material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold which can be easily carried into and installed in a construction site in a room, can be easily removed and carried out from the room after completion of construction work, and can cope with various sites different in height of an obstacle installed indoors or different in height of a ceiling.SOLUTION: A scaffold 1 used for construction of a ceiling part in a room of a building has scaffold support bases 2 which can store scaffold plates 48 constituting a work floor 52 of the scaffold 1, beam materials 41 supporting the scaffold plates 48, and materials used for the construction o the ceiling par 55, tools, and the like, inside the scaffold. The beam material 41 stored inside the scaffold support base 2 is constituted so as to be dividable into a plurality of beam bodies 42, 43, the scaffold support base 2 is movably supported by a plurality of wheels 40, and the beam material 41 is formed so as to have a prescribed length by connecting the plurality of beam bodies 42, 43 by a joint material 44.

Description

  The present invention relates to a scaffold and a beam member, and in particular, installed in a room without moving obstacles such as desks, chairs, and office equipment installed in a room of a building, with respect to a ceiling portion above the obstacle. The present invention relates to scaffolds and beam materials that are effective for various types of construction work.

  Avoid various obstacles such as desks, chairs, and office equipment installed in the room when performing various types of work such as replacement of ceiling panels, replacement of piping and wiring, and expansion of ceilings in the building interior. By using this scaffold, various constructions are performed on the ceiling above the obstacle without moving the obstacle.

  For example, install a pair of stepladders avoiding obstacles on both sides of the obstacle, bridge the scaffolding board with the obstacle straddled between the upper parts of both stepladders, cover the upper part of the obstacle with a curing sheet, Various work is being done on the ceiling above the obstacles.

  However, in the scaffolding as described above, the weight of the stepladder and the scaffolding plate is very heavy, so that the worker carries in and installs it on the site, and removes it from the site after completion of the construction and carries it out. It takes a lot of work.

  Other examples of scaffolds are described in Patent Documents 1 and 2. The scaffold described in Patent Document 1 is a movable scaffold, and is an upper side that is horizontally attached between the four columns provided vertically and the upper ends of two adjacent columns among the four columns. Material, pipe material attached to the upper part of the upper cross member, a plurality of rectangular plate-like scaffolding plates attached to the upper part of the pipe material via gripping metal fittings, and an oblique attachment between the upper cross member and each column It is equipped with reinforcement brace.

  The scaffold described in Patent Document 2 is a movable scaffold, and includes two work floors that can be folded, four legs that support the two work floors, and lower ends of the legs. Casters provided, slanters attached diagonally between each leg and each work floor, reeds attached between the two legs of each work floor, and two of the two work floors And a connecting rod attached between the legs.

  Since the scaffolds described in Patent Documents 1 and 2 are configured to be movable, it takes time for the operator to carry in and install the construction site, and to remove and remove the construction site after completion of the construction. There is nothing wrong.

  However, the scaffold described in Patent Document 1 is provided with a reinforcing bar diagonally attached between two support columns, and the scaffold described in Patent Document 2 has an oblique slant between the work floor and the leg. It is attached and the horizontal and connecting rods are horizontally mounted between the two legs, so that they may be in the way and cannot be installed depending on the size and height of obstacles installed indoors. is there. In that case, the obstacles must be moved and installed, the scaffolding must be removed after the completion of the construction, and the obstacles must be returned to their original positions, which is very laborious.

  In order to cope with the above problems, the inventors of the present application have proposed a technique related to “a scaffolding support platform, a scaffold, and a renewal construction method” in Patent Document 3. This technology has a box shape with an open top, and at least a part of a plurality of side plates covering the periphery, a support base body that can be expanded from a vertical state to a horizontal state, and a state in which the side plates are horizontally expanded A scaffolding support provided with a supporting member that is supported on the base is used.

  By adopting such a technology, materials and tools used for the construction of the ceiling can be stored inside the support base body, so it is necessary to carry in and install it at a predetermined position in the room, and remove it from the room and carry it out. Can be easily performed. In addition, as in the techniques described in Patent Documents 1 and 2, there is no recumbent or connecting reed so that they do not get in the way and move obstacles installed in the room. It can be installed indoors.

  However, since the technique described in Patent Document 3 is used by expanding the side plate of the support base body of the scaffold support base and spanning the work floor between the upper parts of the side plates of the support base body of the adjacent scaffold support base, The load on the support base body of the scaffold support base becomes uneven, and it is difficult to stably support the work floor. In addition, the work floor spanned between the upper parts of the scaffolding supports is not uniform in rigidity, strength, and quality, and may not support the weight of workers and the weight of materials and tools used for construction. .

Japanese Utility Model Publication No. 7-19488 No. 7-35998 JP 2011-80334 A

  The present invention has been made in view of the conventional problems as described above, and can be easily carried in and installed in an indoor construction site, and can be easily removed from the room and carried out after completion of the construction. It is possible to stably support the work floor of the work floor used for the construction, and further to homogenize the rigidity, strength and quality of the work floor, which is used for the weight of the worker and the construction An object of the present invention is to provide a scaffold and a beam that can stably support the weight of materials and tools.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention is a scaffold used for the construction of a ceiling portion in a building interior, and is used for the construction of a scaffolding plate that constitutes the working floor of the scaffolding, a beam material that supports the scaffolding plate, and a ceiling portion. A scaffold support that can store materials, tools, and the like, and the beam material stored in the scaffold support is configured to be divided into a plurality of beam bodies, and the scaffold support includes a plurality of wheels. The beam material is formed to have a predetermined length by connecting a plurality of beam main bodies with a joint material.

According to the scaffold of the present invention, since the beam material supporting the scaffold plate is configured to be divided into a plurality of beam bodies, the beam material can be easily carried into and out of the construction site in a short time, efficiently. It can be carried out. Also, by dividing the beam material into multiple beam bodies, it can be stored inside the scaffolding support platform, so the beam material can be carried into the indoor construction site using the scaffolding support platform, and unloaded from the construction site. In addition, it is possible to carry in and out of the indoor construction site using an elevator whose height is limited.
In addition, since the scaffolding support can be moved on the floor in the room via wheels, it is easy to carry in and out the scaffolding components housed inside the scaffolding support, materials used for the construction of the ceiling, tools, etc. In addition, it can be carried out efficiently in a short time.
Furthermore, since the beam material is formed to have a predetermined length by connecting a plurality of beam main bodies with a joint material, the beam material can be easily divided and assembled in a short time and efficiently.

  Furthermore, in the present invention, the beam body is made of fiber reinforced plastic, the joint material is made of steel, and the beam body and the joint are fitted with the joint material fitted to an end of the beam body. It is good also as being connected with the material by the connection pin.

  According to the scaffold of the present invention, since the beam body is formed of fiber reinforced plastic, the beam material can be reduced in weight, and even if a plurality of beam bodies are connected by a joint material and a connection material, they are made of steel. The same strength as that of a single beam is obtained.

  Further, in the present invention, a stopper portion is provided at the center portion in the longitudinal direction of the joint material so as to protrude outward, so that the end surface in the longitudinal direction of the beam body can come into contact with the end surface of the stop portion. It may be configured.

  According to the scaffold of the present invention, the fitting length of the joint material to the inside of the beam main body can be set to a predetermined length by bringing the longitudinal end surface of the beam main body into contact with the stopper portion. A plurality of beam main bodies can be reliably connected through the joint material.

  Furthermore, in the present invention, the scaffold plate may be a honeycomb plate member having an aluminum honeycomb structure.

  According to the scaffold of the present invention, the rigidity, strength, and quality of the scaffold board can be homogenized, so that the work floor constituted by a plurality of scaffold boards can be used for the weight of the operator, materials and tools used for the construction of the ceiling portion. Etc. can be stably supported.

  Further, the present invention is characterized by comprising a plurality of beam bodies made of fiber reinforced plastic, a steel joint material for connecting between the beam bodies, and a connecting pin for connecting between the joint material and each beam body. To do.

  According to the beam material of the present invention, the whole can be reduced in weight and at the same level of strength as a single steel beam material.

  As described above, according to the scaffold and the beam material of the present invention, it is possible to carry in an indoor construction site and remove it from the construction site easily, efficiently in a short time. In addition, the work floor can be supported stably, and the rigidity, strength, and quality of the work floor can be homogenized, so the weight of workers and the weight of materials and tools used for construction can be stabilized. Can be supported.

It is the top view which showed one Embodiment of the scaffold by this invention. It is a front view of FIG. It is a right view of FIG. It is a front view of the scaffold support stand of FIG. FIG. 5 is a right side view of FIG. 4. FIG. 5 is a plan view of FIG. 4. It is explanatory drawing which showed the relationship between the fixed frame of a scaffold support stand, and a movable frame. It is the elements on larger scale of FIG. It is sectional drawing of the locking mechanism of the scaffold support stand of FIG. It is a top view of the beam material of one embodiment of this invention. It is the sectional view on the AA line of FIG. 10, and the BB line. It is a perspective view of the scaffold board | plate of FIG. FIG. 13 is a rear view of FIG. 12. It is a result of the bending test of the test bodies 1-3 of a beam material. It is explanatory drawing which showed the relationship between the load and displacement of the test bodies 1-3 of a beam material. It is a result of the bending test of the test bodies 1-4 of a scaffold board. It is explanatory drawing which showed the relationship between the load and displacement of the test bodies 1-4 of a scaffold board.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of a scaffold and a beam material according to the present invention. This scaffold 1 is used for various kinds of construction (for example, renewal construction such as replacement of ceiling boards, replacement of piping and wiring, expansion construction, etc.) for the ceiling portion 55 in the room of a building. It is effective for performing various constructions on the ceiling 55 above the obstacle 57 without moving the obstacle 57 such as a desk, chair, and various office equipment installed on the floor 56. is there.

  As shown in FIGS. 4 to 6, the scaffold support base 2 includes a support base body 3 having a space 4 inside and a plurality of wheels 40 that movably support the support base body 3, and the support base body 3. Various materials, tools, and the like used for the construction of the scaffold plate 48, the beam member 41, and the ceiling portion 55 constituting the scaffold 1 are accommodated in the space 4 inside.

  The support base body 3 includes a rectangular plate-like bottom plate 5, a fixed frame 7 fixed to the upper portion of the bottom plate 5, a movable frame 11 supported by the fixed frame 7 so as to be able to extend and contract in the vertical direction, and the movable frame 11 up and down. The lock mechanism 23 is fixed to a predetermined position in the direction, and a space 4 having upper and side portions opened inside the fixed frame 7 and the movable frame 11 is provided.

At the four corners of the bottom surface of the bottom plate 5, wheels 40 are rotatably and pivotably attached, and the support base body 3 is supported by these wheels 40 so as to be movable on the floor 56 in the room. The scaffold support 2 can be installed at a predetermined position in the room by moving the scaffold support 2 on the floor 56 in the room.
In addition, you may comprise the wheel 40 not only in the four corners of the lower surface of the baseplate 5, but between the adjacent wheels 40 and 40, the center part of the baseplate 5, etc. may be provided. Moreover, the wheel 40 does not necessarily need to be provided, and may be provided according to necessity.

  The fixed frame 7 is composed of four square pipe-shaped vertical frames 8 formed of square steel pipes or the like standing vertically at the four corners of the upper surface of the bottom plate 5 and the lower ends of the adjacent vertical frames 8 and 8. Are formed from flat steel plates or the like that are respectively connected in the horizontal direction, and flat steel plates or the like that are horizontally connected between the center portions of the four lower horizontal frames 9a to 9d and the adjacent vertical frames 8 and 8 respectively. It is comprised from the four plate-shaped upper horizontal frames 10a-10d formed.

  As shown in FIG. 7, the movable frame 11 includes four round pipe-like vertical frames 12 formed from round steel pipes or the like that are slidably attached to the inner surfaces of the vertical frames 8 of the fixed frame 7. And four horizontal frames 13a to 13d in the form of square pipes formed from square steel pipes or the like that are horizontally installed between the upper ends of the adjacent vertical frames 12 and 12, respectively.

  By sliding each vertical frame 12 of the movable frame 11 in the vertical direction and moving the movable frame 11 in the vertical direction, the vertical position of the movable frame 11 can be adjusted, and the height of the scaffold support 2 can be adjusted. Can do.

  Of the four upper horizontal frames 10a to 10d of the fixed frame 7, the upper horizontal frame 10a provided at a portion corresponding to one side surface of the support base body 3 is an adjacent vertical frame as shown in FIGS. 8 and 8 are detachably attached via a connecting means 14.

  The connecting means 14 removably connects the other end of the upper horizontal frame 10a to the other adjacent vertical frame 8 and the hinge 15 that rotatably connects one end of the upper horizontal frame 10a to the adjacent vertical frame 8. Bolts and nuts 16 to be made.

  Of the four horizontal frames 13a to 13d of the movable frame 11, the horizontal frame 13a provided at a portion corresponding to one side surface of the support base body 3 is located between adjacent vertical frames 12 and 12, as shown in FIG. It is detachably attached via the connecting means 14.

  Similarly to the connecting means 14 of the fixed frame 7, the connecting means 14 includes a hinge 15 that rotatably supports one end of the horizontal frame 13a on one adjacent vertical frame 12, and the other adjacent to the other end of the horizontal frame 13a. The bolts and nuts 16 are detachably connected to the vertical frame 12.

  The bolts and nuts 16 on the other side of the lateral frame 13a of the fixed frame 7 and the lateral frame 13a of the movable frame 11, which are provided at a portion corresponding to one side surface of the support base body 3, are removed, respectively. By rotating the horizontal frame 13a around the hinge 15 on one end side, one side surface of the support base body 3 can be opened, and the side of the support base body 3 can be opened from the side of the support base body 3 through this opening. The scaffolding plate 48, the beam member 41, the material and the like can be stored in the inner space 4.

  As shown in FIGS. 4 to 6, square pipe-shaped beam material support portions 6 having a predetermined height are provided in two rows at predetermined intervals at the center of the upper surface of the bottom plate 5. Each beam member 41 can be supported vertically in the space 4 by fitting the end portion of each beam member 41 housed in the inner space 4 to each beam member support 6.

  In addition, each beam material support portion 6 may set the size of each beam material support portion 6 so that the end portion of the beam material 41 is fitted to the inner surface side of each beam material support portion 6, You may set the magnitude | size of each beam material support part 6 so that each beam material support part 6 may be fitted in the inner surface side of the beam material 41. FIG.

As shown in FIGS. 2, 3, and 7, of the four horizontal frames 13 a to 13 d of the movable frame 11, the two opposing horizontal frames 13 a and 13 c are the two other opposing horizontal frames. A vertical beam 41 for supporting the scaffold plate 48 is installed between the horizontal frames 13b, 13d to 13b, 13d of the adjacent scaffold support bases 2 and 2 installed in the vertical direction, which is installed at a position higher than 13b and 13d. A lateral beam 41 for supporting the scaffold plate 48 is installed between the lateral frames 13a, 13c to 13a, 13c of the adjacent scaffold support bases 2, 2 installed in the lateral direction.
The vertical direction means the vertical direction in FIG. 1, and the horizontal direction means the horizontal direction in FIG.

  As shown in FIGS. 2, 3, and 7, horizontal frames 13 b and 13 d to 13 b of the scaffold support 2, 2 adjacent to each other in the vertical direction are arranged in the upper central portion of each of the horizontal frames 13 a to 13 d of the movable frame 11. The end portion of the beam member 41 laid between 13d and the end portion of the beam member 41 laid between the horizontal frames 13a, 13c to 13a, 13c of the scaffolding support bases 2 and 2 adjacent in the lateral direction are respectively Clamp members 17 that are fixed to the upper portions of the frames 13a to 13d are provided.

  The clamp member 17 includes a fixing plate 18 provided at an upper center portion of each of the horizontal frames 13 a to 13 d, support plates 19 and 19 provided at intervals on both sides of the fixing plate 18, and a fixing plate 18 on each support plate 19. Butterfly bolt 20 screwed so as to be able to move forward and backward, a countersunk plate 21 attached to the tip of butterfly bolt 20, and a lock nut 22 that fixes butterfly bolt 20 to support plate 19. .

  The ends of the beam members 41 are placed on the upper portions of the horizontal frames 13a to 13d, and the butterfly bolt 10 of the clamp member 17 is advanced in the direction of the fixed plate 18 so that the beam is fixed between the fixed plate 18 and the push plate 19. By tightening the end portion of the material 41 and fixing it to the support plate 19 with the butterfly bolt 20 and the lock nut 22, the end portion of the beam material 41 can be fixed to the upper part of each of the horizontal frames 13 a to 13 d.

  As shown in FIGS. 7 to 9, the lock mechanism 2 is provided at a plurality of locations (in the present embodiment, at predetermined intervals) above the upper and lower frames 10 a to 10 d of each vertical frame 8 of the fixed frame 7. Lock holes (first lock hole 24, second lock hole 25, and third lock hole 26) provided to penetrate each vertical frame 8 in the width direction at three locations, and in each of the lock holes 24 to 26. Lock pins (first lock pin 27, second lock pin 28, and third lock pin 29) provided so as to be insertable / removable, and the lock pins 27-29 are removably supported in the lock holes 24-26. Lock pin guide 31, the compression spring 37 that urges the lock pins 27 to 29 in the direction of insertion into the lock holes 24 to 26, and the lock pins 27 to 29 against the urging force of the compression spring 37. In each lock hole 24-26 And a fixing pin 38. for fixing the escaped position.

  The lock pin guide 31 has a rectangular U-shaped lower plate 32 and plate-shaped side plates 34 and 35 erected vertically at both ends of the lower plate 32, and has one side plate. 34 is integrally connected to the surface of each vertical frame 8 of the fixed frame 7 by welding or the like.

  Pin insertion holes 34 a and 35 a for inserting the lock pins 27 to 29 are respectively provided in the central portions of the side plates 34 and 35 of the lock pin guide 31, and the pin insertion holes of one side plate 34 are provided. One side plate 34 is connected to each vertical frame 8 of the fixed frame 7 so that 34 a matches the lock holes 24 to 26 of each vertical frame 8 of the fixed frame 7.

  A cylindrical stopper portion 36 having a larger diameter than the pin insertion hole 35a is integrally connected to the inner surface side of the other side plate 35 of the lock pin guide 31. The outer peripheral surface of each of the lock pins 27 to 29 is connected to the stopper portion 36. By abutting the washer 39 attached to the lock pin 27, the further movement of the lock pins 27 to 29 in the left direction in the figure is restricted. The washer 39 is restricted from moving in the right direction in the figure by a fixing pin 38 fixed to the outer peripheral surface of each of the lock pins 27 to 29.

  A compression spring 37 is attached to the left side of the washer 39 in the drawing of each lock pin 27 to 29, and the urging force of the compression spring 37 causes each lock pin 27 to 29 to move rightward in the drawing through the washer 39. It comes to be pressed. Each of the lock pins 27 to 29 is restricted from moving further in the right direction in the drawing when the washer 39 abuts against the inner surface of one side plate 34 of the lock pin guide 31.

  A fixing groove 33 having a predetermined width and depth is provided in a portion on the right side of the end surface of the stopper portion 36 on one side surface of the lower plate 32 of the lock pin guide 31, and each lock pin 27. By engaging the fixing pins 38 fixing the 29 washers 39, the lock pins 27 to 29 can be fixed in a state of being removed from the lock holes 24 to 26. Specifically, the lever 30 attached to the rear end of each lock pin 27 to 29 is grasped by hand, and each lock pin 27 to 29 is washed against the urging force of the compression spring 37 in the left direction in the figure. The lock pins 27 to 29 are rotated clockwise in order to engage the fixing pins 38 in the fixing grooves 33 until the pins 39 come into contact with the end surfaces of the stopper portions 36.

  The first lock pins 27 are inserted into the first lock holes 24 by the biasing force of the compression springs 37, and the second lock pins 28 and the third lock pins 29 are resisted against the biasing force of the compression springs 37. Each first lock pin 27 can be arranged in a state of penetrating each vertical frame 8 in the horizontal direction by removing from the second lock hole 25 and each third lock hole 26 and fixing in that state by the fixing pin 38. The lower end of each vertical frame 12 of the movable frame 11 can be supported by each first lock pin 27, and the height of the scaffold support 2 can be set to h1.

  Each second lock pin 28 is inserted into each second lock 25 hole by the biasing force of the compression spring 37, and each third lock pin 29 is resisted against the biasing force of the compression spring 37. The second lock pins 28 can be arranged in a state of penetrating the vertical frames 8 in the horizontal direction by being detached from the state and fixed in that state by the fixing pins 38, and the movable frames 11 can be arranged by the second lock pins 28. The lower end of each vertical frame 12 can be supported, and the height of the scaffold support 2 can be set to h2.

  Further, by inserting each third lock pin 29 into each third lock hole 26 by the urging force of the compression spring 37, each third lock pin 29 can be arranged in a state of passing through each vertical frame 8. The lower ends of the vertical frames 12 of the movable frame 11 can be supported by the third lock pins 29, and the height of the scaffold support 2 can be set to h3.

  As shown in FIGS. 10 and 11, the beam member 41 of the present embodiment includes rectangular pipe-shaped beam bodies 42 and 43 formed of fiber reinforced plastic (FRP) such as carbon fiber reinforced plastic (CFRP), It is comprised from the steel joint material 44 which connects the beam main bodies 42 and 43. FIG.

  In the present embodiment, a first beam main body 42 having a length of 1500 mm and a second beam main body 43 having a length of 750 mm are used, and the second beam main body 43 is connected to both ends of the first beam main body 42 with the joint material 44. By connecting each of them, a beam member 41 having a length of 3000 mm is formed.

  At both ends of the first beam main body 42, pin insertion holes 42a penetrating the first beam main body 42 in the width direction are provided. A connecting pin is provided between the pin insertion hole 42a and the pin insertion hole 44a of the joint member 44. The joint material 44 can be connected to both ends of the first beam main body 42 by inserting 46 and tightening with the nut 47.

  A pin insertion hole 43a that penetrates the second beam main body 43 in the width direction is provided at one end of the second beam main body 43, and a connecting pin is provided between the pin insertion hole 43a and the pin insertion hole 44a of the joint member 44. The second beam main body 43 can be connected to both ends of the first beam main body 42 via the joint material 44 by inserting 46 and tightening with the nut 47.

  The joint material 44 has a cross-sectional C shape that can be fitted to the inner surface side of the end portion of the first beam main body 42 and the inner surface side of the end portion of the second beam main body 43. The C-shaped steel having a length of 600 mm is used as the material of the joint material 44.

  A stopper portion 45 having a predetermined height is provided on the outer surface of the central portion in the longitudinal direction of the joint material 44, and the end surface of the first beam main body 42 is brought into contact with one side surface of the stopper portion 45. By bringing the end surface of the second beam main body 43 into contact with the other side surface, the joint material 44 is substantially the same length on the inner surface side of the end portion of the first beam main body 42 and the inner surface side of the end portion of the second beam main body 43. Can be fitted.

  Pin insertion holes 44a penetrating between both flanges of the joint material 44 are provided at both ends in the longitudinal direction of the joint material 44, and both ends of the joint material 44 are connected to the inner surface side of the end of the first beam main body 42, and In a state of being fitted to the inner surface side of the end portion of the second beam main body 43, the connecting pin 46 is inserted between the pin insertion hole 42a of the first beam main body 42 and the pin insertion hole 44a of the joint material 44, The connection beam 46 is inserted between the pin insertion hole 43a of the two-beam main body 43 and the pin insertion hole 44a of the joint material 44, and a nut 47 is screwed into each connection pin 46 and tightened to tighten the first beam main body 42. And the second beam main body 43 can be connected in series via the joint material 44.

  The beam member 41 is formed to a length of 3000 mm by connecting the second beam body 43 to both ends of the first beam body 42 via joint members 44. In this state, the beam member 41 is an obstacle such as an indoor desk. 57 between the horizontal frames 13b, 13d-13b, 13d of the vertically adjacent scaffolding support bases 2 and 2 installed so as to avoid 57, and between the horizontal frames 13a, 13c-13a of the horizontal support bases 2, 2 adjacent to the horizontal direction. , 13c.

  As shown in FIGS. 12 and 13, the scaffold plate 48 is a honeycomb plate member having an aluminum honeycomb structure having a predetermined strength and weight, and in this embodiment, the length is 1500 mm, the width is 500 mm, and the thickness is A honeycomb plate material of 25 mm is used. The honeycomb plate material includes a surface material 49, a back material 50, and a honeycomb core 51 interposed between the surface material 49 and the back material 50. A plurality of circular protrusions 49 a for preventing slip are provided on the surface of the surface material 49, and a tape 30 a for preventing slip is attached to both edges of the surface of the back material 50. As the scaffolding plate 48, for example, a Nicham panel manufactured by Fujikake Planning Co., Ltd., an Aluminum Honeycomb manufactured by Argosy International Inc, or the like can be used.

Next, a procedure for installing the scaffold 1 at a predetermined position in the room using the scaffold support 2 configured as described above, the beam member 41, and the scaffold plate 48 will be described.
(1) As shown in FIG. 4 to FIG. 6, various materials and tools used for the construction of the scaffold plate 48, the beam member 41, and the ceiling portion in the space 4 inside the support base body 3 of each scaffold support base 2. Etc. The beam member 41 is housed in the space 4 in a state of being divided into a first beam body 42 and a second beam body 43.

  In this case, each lock pin (the first lock pin 27, the second lock pin 28, and the third lock pin 29) of the lock mechanism 23 of the support base body 3 of each scaffold support base 2 is resisted against the urging force of the compression spring 37. The lock pins 27 to 29 are removed from the lock holes (the first lock hole 24, the second lock hole 25, and the third lock hole 26), and the fixing pin 38 is fixed to the lock pin guide 31. By engaging with the groove 33, the lock pins 27 to 29 are fixed in a state of being removed from the lock holes 24 to 26, and the movable arm 11 of the support base body 3 of each scaffold support base 2 is set at the lowest position. Keep it.

(2) As shown in FIG. 1 to FIG. 3, by moving each scaffold support 2 on the floor 56 in the room via the wheels 40, each scaffold support 2 is installed in a room or the like. Avoiding the obstacle 57, it is installed so as to surround the obstacle 57 at the four corners outside the obstacle 57, and by finely adjusting the position of each scaffold support 2, the distance between the adjacent scaffold supports 2, 2 is increased. Set to predetermined dimensions.

(3) Remove the upper and lateral frames 10a of the fixed frame 7 corresponding to one side surface of the support base body 3 of each scaffold support base 2 and the bolts and nuts 16 on the other end side of the horizontal frame 13a of the movable frame 11, By rotating the frames 10a and 13a through the hinge 15 on one end side, one side surface of the support base body 3 is opened, and the scaffolding plate 48 and the beam member 41 are opened from the space 4 inside the support base body 3 through the opening. Various materials and tools used for the construction of the first beam main body 42, the second beam main body 43, and the ceiling portion are taken out. Then, the frames 10a and 13a are rotated and returned to their original positions, and the bolts and nuts 16 are tightened to fix the frames 10a and 13a, and one side surface of the support base body 3 is closed.

(4) By removing the first locking pin 27, the second locking pin 28, or the fixing pin 38 of the third locking pin 29 of the lock mechanism 23 of the support base body 3 of each scaffold support base 2 from the fixing groove 33, The first lock pin 27, the second lock pin 28, or the third lock pin 29 is inserted into the first first lock hole 24, the second lock hole 25, or the third lock hole 26 by the urging force of the compression spring 37, The first lock pin 27, the second lock pin 28, or the third lock pin 29 is disposed in a state where each vertical frame 8 of the fixed frame 7 is penetrated, and the movable frame 11 is disposed in the first lock pin 27, the second lock pin. The height of each scaffold support 2 is set to h1, h2, or h3 by setting it to a predetermined position in the vertical direction corresponding to the position of 28 or the third lock pin 29.

(5) The joint material 44 is fitted to both ends of the first beam main body 42 taken out from the support base body 3 of each scaffold support base 2, and each end surface of the first beam main body 42 is a stopper portion of each joint material 44. 45, a connecting pin 46 is inserted between the pin insertion hole 42a at each end of the first beam body 42 and the pin insertion hole 44a of the joint member 44, and the nut 47 is screwed together. The joint members 44 are respectively connected to both end portions of the first beam main body 42 by tightening.

(6) Each joint material 44 is fitted to the end of the second beam main body 43, the end surface of each second beam main body 43 is brought into contact with the other side surface of the stopper portion 45 of each joint material 44, and each second The connecting pin 46 is inserted between the pin insertion hole 43a of the beam main body 43 and the pin insertion hole 44a of the joint material 44, and the nut 47 is screwed and tightened to be connected to each end of the first beam main body 42. The second beam main body 43 is connected via the material 44 to form a beam material 41 having a predetermined length.

(7) One beam member 41 is installed between the horizontal frames 13b, 13d to 13b, 13d of the scaffold support bases 2 and 2 adjacent in the vertical direction, and the horizontal frames of the scaffold support bases 2 and 2 adjacent in the horizontal direction 13a, 13c to 13a, 13c, one beam member 41 is installed, and the end of each beam member 41 is moved forward by the butterfly bolt 20 of each clamp member 17, and between the fixed plate 18 and the push plate 21 Then, the ends of the beam members 41 are fastened from the width direction, and the butterfly bolt 20 is fixed to the support plate 19 with the lock nut 22 to fix the ends of the beam members 41 to the upper portions of the horizontal frames 13a to 13d.

(8) Two beam members 41, 41 are installed from the lateral direction between the central portions of the two beam members 41, 41 in the vertical direction.

(9) A plurality of scaffold plates 48 are bridged between the upper lateral beam member 41 and the central upper beam member 41 so that no gap is formed between the left and right scaffold plates 48, 48, A plurality of scaffolding plates 48 are arranged between the lower lateral beam member 41 and the lower lower beam member 41 in the center, so that no gap is formed between the left and right scaffolding plates 48, 48, and the upper side. A plurality of scaffold plates 48 are bridged so as not to form gaps, and the plurality of scaffold plates 48 form a rectangular plate-like work floor 52 that covers the obstacle 57.

The work floor 52 of the scaffold 1 is installed by the above procedures (1) to (9), and various constructions are performed on the ceiling portion 55 above the obstacle 57 by using the work floor 52. be able to.
When various constructions for the ceiling portion 55 are completed, the scaffold plates 48 constituting the work floor 52 are then removed, the beam members 41 installed between the longitudinal beam members 41, 41, and the adjacent scaffold support bases. 2 and 2 horizontal frames 13b, 13d to 13b and 13d between the vertical beam members 41 and the adjacent scaffolding supports 2 and 2 horizontal frames 13a and 13c to 13a and 13c. The horizontal beam members 41 are removed.

  Then, by removing the nut 47 and the connecting pin 46 from the beam member 41, the beam member 41 is divided into the first beam body 42, the second beam body 43, and the joint material 44, and the lock mechanism of the support base body 3 of each scaffold support base 2 23 lock pins (first lock pin 27, second lock pin 28, and third lock pin 29) from each lock hole (first lock hole 24, second lock hole 25, and third lock hole 26). At the same time, the movable arm 11 of the support base body 3 of each scaffold support base 2 is set at the lowest position.

  Next, the lower horizontal frame 9a, the upper horizontal frame 10a and the horizontal frame 13a of the movable frame 11 on one side of the support base body 3 of each scaffold support base 2 are respectively connected to the bolts and nuts 16 on the other end side. By removing and rotating the frames 9a, 10a, 13a around the hinge 15, one side surface of the support base body 3 is opened, and the scaffolding plate 48 is inserted into the space 4 inside the support base body 3 through this opening. The materials and tools used for the construction of the first beam main body 42, the second beam main body 43, and the ceiling portion 55 of the beam member 41 are stored, and after the storage is completed, the frames 9a, 10a, 13a are returned to their original positions. The bolts and nuts 16 are fixed, and one side of the support base body 3 is closed. And each scaffold support stand 2 is moved on the floor 56, removed from the construction site, and carried out of the room.

  In the scaffold 1 and the beam member 41 of the present embodiment configured as described above, the scaffold support 2 is configured to be movable on the indoor floor 56 and in the space 4 inside the scaffold support 2. In addition, the scaffold plate 48 constituting the work floor 52 of the scaffold 1, the first beam main body 42, the second beam main body 43, the joint material 44, construction materials, tools, and the like of the beam material 41 that supports the scaffold plate 48 are stored. Since the scaffolding support 2 is used, the members, construction materials, tools, etc. constituting the scaffold 1 can be carried into the indoor construction site and removed from the indoor construction site. .

  Therefore, the installation work of the scaffold 1 at the indoor construction site and the removal work of the scaffold 1 from the indoor construction site can be performed easily, in a short time, and efficiently. Construction can be performed efficiently.

  In addition, since the scaffold board 48 constituting the work floor 52 is made of an aluminum honeycomb structure honeycomb plate material, the rigidity, strength, and quality of the scaffold board 4 can be homogenized, and the scaffold board 48 can be made lightweight. It can also be converted.

  Accordingly, the storage work of the scaffolding plate 48 in the space 4 of the scaffolding support base 2, the removal work from the space 4, the installation work between the beam members 41 of the scaffolding plate 48, the space between the beam members 41 of the scaffolding plate 48. Removal work can be easily performed. Further, when the scaffold plate 48 is used as the work floor 52, the weight of the worker and the weight of materials and tools used for the construction can be sufficiently supported, and the safety of the worker can be ensured.

  In addition, the beam member 41 that supports the scaffold plate 48 is formed of a fiber reinforced plastic (FRP) such as a carbon fiber reinforced plastic (CFRP), a first beam main body 42 and a second beam main body 43, and a first beam main body 42. Since the second beam main body 43 is connected to the steel joint material 44, the beam material 41 can be significantly reduced in weight as compared with the case where the entire beam material 41 is made of steel. The same strength as that of the made beam 41 can be obtained.

  Accordingly, the work of storing the beam material 41 in the space 4 of the scaffold support base 2, the work of taking out from the space 4, the beam material 41 between the horizontal frames 13b, 13d to 13b, 13d of the adjacent scaffold support base 2, 2, Work erected between the horizontal frames 13a, 13c to 13a, 13c, removal work between the horizontal frames 13b, 13d to 13b, 13d of the adjacent scaffold support bases 2, 2 and between the horizontal frames 13a, 13c to 13a, 13c, etc. Can be easily performed.

  In addition, since the beam member 41 can be divided into the first beam main body 42 and the second beam main body 43, the beam member 41 is carried into the indoor construction site in a long state and is taken out from the indoor construction site. There is no need to carry out, and it is possible to easily carry in the work of carrying the beam 41 into the indoor construction site and carry out the work from the indoor construction site. Further, since the beam member 41 can be divided into the first beam main body 42 and the second beam main body 43, it is carried into the indoor construction site using an elevator whose height is restricted, and from the indoor construction site. It becomes possible to remove, and the work of carrying in and carrying out the beam 41 can be further facilitated.

  In addition, since the height of the scaffold support 2 can be adjusted, the height of the scaffold support 2 can be adjusted by adjusting the height of the scaffold support 2 with respect to various obstacles 57 having different heights installed indoors. The work floor 52 can be installed to cover the obstacle 57 without moving the object 57 and without interfering with the obstacle 57 above the obstacle 57. It becomes possible to respond.

  Further, the height of the work floor 52 can be adapted to various ceiling portions 55 having different heights by adjusting the height of the scaffold support 2 for various construction sites having different heights of the ceiling portion 55. Therefore, it is possible to cope with various construction sites where the height of the ceiling portion 55 is different.

  In the above description, four scaffold support bases 2 are installed at the four corners outside the obstacle 57, and the horizontal frames 13b, 13d to 13b, 13d of the scaffold support bases 2 and 2 adjacent in the vertical direction are lateral. The beam members 41 are respectively installed between the horizontal frames 13a, 13c to 13a, 13c of the scaffold support bases 2 and 2 adjacent to each other in the direction, and from the lateral direction between the central portions of the two beam members 41, 41 in the vertical direction. Although the beam member 41 is installed, depending on the size and shape of the obstacle 57, the scaffold 1 having the above configuration may be further formed on the upper side, the lower side, the left side, or the right side of the scaffold 1.

  In order to confirm whether or not the beam member 41 and the scaffold member 48 of the present embodiment satisfy the approval criteria shown in “Temporary Equipment Certification Criteria and its Explanation (Temporary Industrial Association)”, A bending test was performed on the test body (test bodies 1 to 3) and the test body of the scaffold 48 (test bodies 1 to 4).

  In the specimens 1 to 3 of the beam member 41, two 750 mm long CFRP square pipes (corresponding to the second beam body 43) are connected by a steel joint member 44 to have a total length of 1500 mm. It was used. For the test bodies 1 to 4 of the scaffold material 48, a honeycomb plate material having an aluminum honeycomb structure having a length of 1500 mm was used. The beam member 41 had a distance between fulcrums of 1200 mm, and the scaffold member 48 had a distance between fulcrums of 1300 mm, and a load was applied to the center of each.

  The test results of the beam member 41 are shown in FIGS. 14 and 15, and the test results of the scaffold member 48 are shown in FIGS. FIG. 14 shows the relationship between the load and displacement of the specimens 1 to 3 of the beam member 41, and FIG. 15 shows the quasi-standard values (defined displacement and maximum proof stress at 2.2 kN) of the temporary industry association and the beam member 41. FIG. 16 shows the relationship between the load and displacement of the test specimens 1 to 4 of the scaffold 48, and FIG. 17 shows the provisional stipulated value of the temporary industry association (the provision at 2.2 kN). Displacement, maximum proof stress), and experimental values of the specimens 1 to 4 of the scaffold 48.

  From the results of these tests, it can be seen that the beam member 41 and the scaffold member 48 used in the scaffold 1 of the present embodiment have almost no variation in the initial rigidity and the maximum proof stress, and satisfy the quasi-use value of the temporary industry association. I understood.

DESCRIPTION OF SYMBOLS 1 Scaffolding 2 Scaffolding support base 3 Support base body 4 Space 5 Bottom plate 6 Beam material support part 7 Fixed frame 8 Vertical frame 9a-9d Lower horizontal frame 10a-10d Upper horizontal frame 11 Movable frame 12 Vertical frame 13a-13d Horizontal frame 14 Connection Means 15 Hinge 16 Bolt / Nut 17 Clamp Member 18 Fixing Plate 19 Support Plate 20 Butterfly Bolt 21 Push Plate 22 Lock Nut 23 Lock Mechanism 24 First Lock Hole 25 Second Lock Hole 26 Third Lock Hole 27 First Lock Pin 28 First 2 lock pin 29 third lock pin 30 lever 31 lock pin guide 32 lower plate 33 fixing groove 34 side plate 34a pin insertion hole 35 side plate 35a pin insertion hole 36 stopper portion 37 compression spring 38 fixing pin 39 washer 40 wheel 41 beam material 42 first 1 beam body 42a pin insertion hole 4 The second beam body 43a pin insertion hole 44 Joint member 44a pin insertion hole 45 stopper portion 46 connecting pin 47 nut 48 scaffolding plate 49 surface member 49a projection 50 back surface member 50a tape 51 honeycomb core 52 working floor 55 ceiling 56 Floor 57 obstacle

Claims (5)

A scaffold used for the construction of a ceiling in a building,
A scaffolding plate that can store therein a scaffolding plate that constitutes the working floor of the scaffolding, a beam material that supports the scaffolding plate, materials used for the construction of the ceiling, tools, etc.
The beam material housed inside the scaffold support base is configured to be divided into a plurality of beam bodies,
The scaffold support is movably supported by a plurality of wheels,
The said beam material is formed with the predetermined length by connecting a some beam main body with a joint material, The scaffold characterized by the above-mentioned.   The beam body is made of fiber reinforced plastic, the joint material is made of steel, and the beam body and the joint material are connected in a state where the joint material is fitted to an end of the beam body. The scaffold according to claim 1, wherein the scaffold is connected by a pin.   A stopper portion is provided at the center portion in the longitudinal direction of the joint material so as to protrude outward, and the end surface in the longitudinal direction of the beam body can be brought into contact with the end surface of the stoper portion. The scaffold according to claim 1 or 2, characterized by the above.   The scaffold according to any one of claims 1 to 3, wherein the scaffold plate is a honeycomb plate member having an aluminum honeycomb structure.   A beam material comprising a plurality of beam bodies made of fiber reinforced plastic, a steel joint material for connecting the beam bodies, and a connecting pin for connecting the joint material and each beam body.