JP2005290782A - Detaching fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detaching fixture which facilitates detachment of a tube member or a clip member functioning as a mounting tool for mounting a temporary building sheet on pipe members. <P>SOLUTION: The detaching fixture is formed of a plate-like grip portion G1, and first and second projected pieces G2, G4 protruding like a plate from both longitudinal ends of the grip portion G1. The first and second projected pieces G2, G4 each have a width narrower than that of the grip portion G1, and the tip of each of the lug pieces is formed like a thin plate so as to be insertable into a gap between the tube member or the clip member and a member under the same. Further the first projected piece G2 has a bent portion at its proximal end and a protrusion G3 having a predetermined height is formed on a convexly curved side of the bent portion. Furthermore the second projected piece G4 is extended from one end portion of the longitudinal end face of the grip portion G1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a removal jig for facilitating removal of a fixture such as a clip for fixing a sheet material such as a temporary tent stretched above a building to a beam member.

Temporary building seat fixtures are known in which the temporary building sheet can be easily attached to and detached from the pipe material constituting the framework of the temporary building, and the seat can be securely and firmly stretched in a sealed state (for example, patents) Reference 1).
JP 2000-45534 A (page 2-3, FIG. 4, FIG. 6)

  The fixture of the temporary construction sheet of Patent Document 1 is configured to sandwich a sheet wound around a pipe material from two sides with two sandwich pieces having an arcuate cross section. Then, a spring engaging groove to which a zigzag spring can be attached and detached is provided at the hinge part of both sandwiching pieces, and when the spring is attached to this engaging groove, the sheet is pressed and clamped by the elasticity of the spring, and the pipe material is It is fixed. When such a fixture is used, it is easy to attach and detach the spring, so that the sheet can be easily fixed to the pipe member using the tube-like fixture and can be easily detached. .

However, since the fixture of patent document 1 has a special structure, it was difficult to obtain, and there was a problem that it would be expensive if manufactured by itself.
On the other hand, if a commercially available clip material or the like is used as a fixture for fixing the seat, such a fixture can be obtained easily and inexpensively. For example, the tube material 81 and the clip 82 used to fix the sheet 80 in FIGS. 13 and 15 are commercially available products, and can be obtained easily and inexpensively. The sheet 80 can be firmly fixed to the tubular member.

However, such a fixture such as the tube member 81 and the clip 82 pushes the tubular member and the sheet member into the cylindrical member having a C-shaped cross section having a predetermined length so that the space between the tubular member and the tubular member is reduced. The sheet is fixed by sandwiching the sheet. And when it was going to peel off a cylindrical material from the sheet | seat and the tubular member forcibly pushed into the inside of a cylindrical material, considerable force was required. Therefore, when removing the sheet from the tubular member, if an attempt is made to peel it off with only the force of a finger, the burden on the operator is increased. And nevertheless, a dedicated jig or the like for facilitating the removal of the tube material 81 and the clip 82 has not been known.

  In view of the above problems, the present invention is a work for removing a tubular material having a substantially C-shaped cross section, such as a commercially available tube material 81 and a clip 82, from the tubular member, that is, the fitting member from the fitting member. An object of the present invention is to provide a removal jig for facilitating the removal work.

  According to the detachment jig according to claim 1, the subject is a detachment jig for detaching the fitting member fitted to the ridge, and includes a plate-like grip portion and the grip portion. A first projecting piece portion and a second projecting piece portion each extending in a plate shape from the end in the longitudinal direction of the first projecting portion, and the first projecting piece portion and the second projecting side portion are the grips. A locking portion that is formed narrower than the portion and can be inserted into the gap between the fitting member and the protruding portion is formed at each tip, and the first protruding piece portion has a bent portion. In addition, a protrusion having a predetermined height is provided on the surface of the bent portion that has a convex shape, and the second protrusion piece extends from one end of the end face in the longitudinal direction of the grip portion. That is solved.

  As described above, the removal jig according to the first aspect has the thin plate-like first protruding piece portion that can be inserted into the gap between the fitting member and the fitting member. Since the first protrusion has a bent portion, and a protrusion is formed on the surface of the bent portion on the convex side, the protrusion of the first protrusion is used as a fulcrum. The tip can be rotated. Therefore, after the first projecting piece is inserted into the gap between the fitting member and the fitting member, the projection is brought into contact with the surface of the fitting member, and the pressing force is applied to the grip portion using the projection as a fulcrum. Is added, the tip of the first projecting piece is raised together with the fitting member from the surface of the fitting member by the lever principle. Thereby, the fitting member can be detached from the fitting member with less force. Therefore, the burden on the operator is reduced and the fitting member can be easily removed.

  Further, the removal jig according to claim 1 has a thin plate-like second projecting piece portion that can be inserted into a gap between the fitting member and the fitted member, and the second projecting piece portion includes: It is formed narrower than the grip portion and extends from one end portion of the end surface in the longitudinal direction of the grip portion. In short, the second projecting piece extends from the corner of the grip. Accordingly, after inserting the second projecting piece portion into the gap between the fitting member and the fitting member, if a force for rotating the grip portion around the longitudinal direction is applied, the second portion is accompanied accordingly. The projecting piece is rotated, the portion inserted in the gap between the fitting member and the fitting member is turned, and the gap is widened. That is, since the grip part is formed wider than the second protrusion part, when the grip part is rotated, the second protrusion part is rotated with less force by the lever principle. The gap between the fitting member and the fitting member can be widened. Therefore, the burden on the operator is reduced and the fitting member can be easily removed.

  At this time, as described in claim 2, it is preferable that the plate surface of the grip portion is formed with a raised portion along the longitudinal direction. If comprised in this way, the plate | board surface of a grip part will be made into the shape along the operator's palm, and it will be easy to hold and it will be easy to apply force. Therefore, the burden on the operator is reduced and the fitting member can be easily removed.

As described above, according to the present invention, the following effects can be obtained.
(A) When the first projecting piece is inserted into the gap between the fitting member and the fitting member, the protrusion is brought into contact with the surface of the fitting member and a pressing force is applied to the grip portion, the lever According to the principle, the fitting member can be detached from the fitting member with less force. Therefore, the burden on the operator is reduced and the fitting member can be easily removed.
(B) When the second projecting piece is inserted into the gap between the fitting member and the fitting member and the gripping portion is rotated, the fitting member and the fitting member are reduced with less force by the lever principle. Can be widened.
(C) When the raised portion is formed along the longitudinal direction on the plate surface of the grip portion, it is easy to grip and the operator can easily apply the above-mentioned pressing force and turning force. Therefore, the burden on the operator is reduced and the fitting member can be easily removed.

  Embodiments of the present invention will be described with reference to the drawings. Further, the arrangement, shape, and the like described below do not limit the present invention, and various modifications can be made in accordance with the spirit of the present invention.

1 to 16 are views showing an embodiment of the present invention. FIG. 1 is a plan view of a temporary tent according to the embodiment. FIGS. 2 and 3 are cross-sectional views of the temporary tent according to the embodiment. AA sectional view, FIG. 3 is a sectional view taken along the line BB of FIG. 1, FIGS. 4 to 7 are explanatory views showing a method of stretching the seat of the embodiment, and FIG. 8 is a temporary scaffold with rails, roller mounts, garters FIG. 9 is an explanatory view showing a method for joining garter parts according to the embodiment, FIG. 10 is a perspective view showing a joint portion between the garter and the connecting material, and FIGS. 11 and 12 are garters according to the embodiment. FIG. 13 is an explanatory view showing a state in which the sheet of the embodiment is fixed from above the garter.
14 is an explanatory view showing a removal jig used to release the fixed state of the sheet, FIG. 15 is an explanatory view showing a procedure for removing the clip using the removal jig, and FIG. 16 is a temporary tent of the embodiment. It is explanatory drawing which shows arrangement | positioning of the drain provided in the sheet | seat of this.

(Configuration of temporary tent and beam member for temporary tent)
The temporary tent S of this embodiment includes a rail support member 20 fixed to a bracket 10 supported by a temporary scaffold T, a rail 30 fixed to the rail support member 20, and a roller mount attached to the rail 30. 40, a garter 50 attached to the upper surface of the roller mount, a connecting member 60 that connects adjacent garters 50 at a predetermined interval, a bundle member 70 that can be attached to and detached from the garter 50, the garter 50, and the connecting member 60. And a drainage drain 90 provided on the sheet 80, and a drainage drain 90 provided on the sheet 80.
The rail 30 described above corresponds to the rail member of the present invention, the garter 50 corresponds to the beam member of the present invention, and the seat 80 corresponds to the sheet member of the present invention.

  As shown in FIG. 1, the temporary tent S is supported by temporary scaffolds T <b> 1 and T <b> 2 provided at positions facing each other across the building H. 1 to 3, the sheet 80 is not shown. In FIG. 1, the bracket 10 and the roller mount 40 shown in FIGS. 2 and 3 are not shown.

  As shown in FIG. 3, brackets 10 are attached to substantially the same height at the upper ends of the vertical frame members R1 and R2 inside (building side) the temporary scaffolds T1 and T2. As shown in FIG. 8, the bracket 10 includes a vertical frame member 11 and a substantially horizontal horizontal frame member 12 fixed to the vertical frame member 11. The vertical frame member 11 and the vertical frame members R1 and R2 are fixed by a single pipe connecting member 13, and the horizontal frame member 12 extends from the upper end of the vertical frame member 11 toward the building. As shown in FIG. 8, one flange surface of the U-shaped rail support member 20 is fixed to the upper side of each horizontal frame member 12 via a single tube clamp 14. A rail 30 is fixed to the tip of the other flange portion of the rail support member 20.

As described above, the rail 30 is supported by a plurality of vertical frame members R1 arranged on a substantially straight line at a plurality of positions via the bracket 1 and the rail support member 20, and is held substantially horizontally. Similarly, another rail 30 is supported by a plurality of vertical frame members R2 arranged on a substantially straight line via a bracket 1 and a rail support member 20 at a plurality of locations, and is held substantially horizontally. That is, the rails 30 are erected on the building side from the temporary scaffolds T1 and T2, respectively, and the two rails 30 are erected substantially in parallel with the building H interposed therebetween.
In this embodiment, the rail 30 is a plated steel pipe having a diameter of 48.6 mm made of a steel material having a thickness of 2.3 mm.

As shown in FIG. 8, the roller base 40 has a base part 42 joined to a traveling part 41. The traveling portion 41 is formed by arranging a plurality of rollers 44 in a U-shape inside a roller receiving member 43 having a lip groove steel cross-sectional shape. A member on a lower end surface of a garter 50 described later is joined to the gantry 42.
The roller mount 40 is mounted by inserting the rail 30 into a space surrounded by each rotatable roller 44 arranged in a substantially U-shape. When mounted in this manner, the rail 30 is brought into contact with and supported by the rotation surface of the roller 44 from three directions, and the roller mount 40 can travel along the rail 30. In addition, since a plurality of rollers 44 are arranged along the length direction of the roller receiving member 43, the roller receiving member 43 is mounted in parallel to the rail 30.

  The garter 50 is a member that is bridged between a pair of rails 30, 30 that are laid substantially in parallel across the building H. The garter 50 is composed of one upper chord member 51 and two lower chord members 52, 52 that are substantially equilateral triangular thin plates. Each beam plate 53 is joined to each apex. Both ends of the garter 50 are attached to the gantry 42 of the roller gantry 40. And the garter 50 is made to run freely over the building by attaching the roller mounts 40, 40 at both ends to the substantially parallel rails 30, 30, respectively. In the present embodiment, the garter 50 is configured to run freely using the roller mount 40 as shown in FIG. 6. However, the garter 50 is not limited to such a shape, and any configuration can be used as long as it can run with respect to the rail 30. Such a configuration may be adopted.

Each of the upper chord material 51 and the lower chord material 52, 52 is a plated steel pipe made of a steel material having a thickness of 1.6 mm. Its diameter is 19.1 mm.
The beam plate 53 is made of a steel plate having a thickness of 3.2 mm, and the dimension from the base to the apex of the substantially equilateral triangle is 200 mm. The beam plate 53 corresponds to the connecting material of the present invention. The beam plates 53 are arranged at 455 mm intervals in the length direction of the garter 50. That is, they are arranged at a pitch that is half the module dimension (910 mm). The plate surface of the beam plate 53 is substantially perpendicular to the length direction of the garter 50.

The beam plate 53 and the upper chord material 51 or the lower chord material 52, 52 are joined via a reinforcing plate 54, respectively. The reinforcing plate 54 is a steel plate having a thickness of about 50 mm and a thickness of 3.2 mm. One end surface of the reinforcing plate 54 is welded to the plate surface of the beam plate 53, and the end surface adjacent to the welded surface is the upper chord member 51 or the lower chord member 52, It is welded to the side surface of 52.
Further, the beam plate 53 is provided with a circular opening 53a having a diameter of 50 mm at substantially the center thereof, thereby reducing the weight of the member. Further, a plurality of bolt joint holes 53b having a diameter of 13 mm are provided around the circular opening 53a. Three of the bolt joint holes 53b are provided centering on a position 60 mm away from the center of the circular opening 53a toward each vertex of the triangle. Further, the other bolt joint hole 53b is provided on a perpendicular line from the center of the circular opening 53a to each side of the triangle and at a position 25 mm inside from each side.

In this embodiment, in order to construct the garter 50 which is a long member manually, a garter in which a plurality of garter parts 55 which can be attached to and detached from each other are connected in the length direction is assembled and constructed on the work floor. Each garter part 55 has a maximum length of 3640 mm and a maximum weight of 11 kg. The garter part 55 corresponds to the assembly member of the present invention.
In transporting these members, it is said that the weight of each member needs to be 10 kg so that the operator does not feel pain when holding the member by hand. That is, 10 kg is a guideline value for preventing the worker from feeling pain. The garter part 55 of the present embodiment has a maximum weight of 11 kg, which exceeds the weight of this guideline, but the excess amount is slight. Therefore, even if the worker carries the garter part 55 of the present embodiment, the work is not so painful. Moreover, the garter parts shorter than 3640 mm are 10 kg or less, and do not make a worker feel pain at the time of conveyance.

  As described above, the structural members of the temporary tent S can be transported to the work floor by human power and can be assembled or dismantled on the work floor. It can be handed over, and temporary tents can be installed and dismantled. Therefore, the cost is reduced. Temporary tents can also be installed at sites where heavy equipment installation space cannot be secured.

The temporary tent of the present embodiment varies in size depending on the size of the building or site. In order to cope with such a case, it is preferable that a plurality of types of garter parts 55 are prepared. Thereby, garters of various lengths can be easily assembled. For example, a garter part having an integer multiple or a fraction of an integer is prepared based on the unit module dimensions. In this embodiment, the module size of the building is 910 mm, and the size is developed based on 455 mm, which is a half of the module size. To do. If it does in this way, the garter of the dimension corresponding to the building where the module was developed can be assembled easily. However, in the present embodiment, in consideration of workability and ease of installation / disassembly as described above, the maximum length of the garter part is 3640 mm, which is four times the module size.
In addition, since both ends of the garter are fixed to the above-described gantry 42, an assembly member used for both ends of the garter may be prepared with a length only for the end considering the fixing margin.

  FIG. 9 shows a method for joining the garter parts 55. Beam plates 53 are attached to both ends of each garter part 55, and this beam plate 53 is overlapped with the beam plate 53 at the end of the garter part 55 to be joined. At the same time, the openings of the ends of the upper chord material 51 and the lower chord material 52, 52 are opposed to the corresponding openings of the upper chord material and the lower chord material of the member to be joined. Then, both ends of a rod-shaped pin member P having a predetermined length are inserted into the openings facing each other, and the pin member P is housed in the steel pipe from both sides as indicated by arrows. If it does in this way, the upper chord material 51 and the lower chord material 52 will be connected linearly via the pin member P.

  At least one protrusion Q is formed in the approximate center of the pin member P. When the protrusion Q is formed, the pin member P inserted into the steel pipe from the end thereof is not inserted deeper than the position of the protrusion Q into the steel pipe. Therefore, the pin member is always held so that the substantially central portion of the pin member P is positioned on the connecting surface of the garter part 55, that is, the boundary surface of the steel pipe facing the steel pipe, and no positional deviation occurs.

  Then, the bolt M is inserted into the bolt joint hole 53b of the overlapped beam plate 53, the nut N is tightened, and the beam plates 53 are fixed to each other. In FIG. 9, only one bolt is tightened, but the bolt M may be a number that can obtain a sufficient joint strength, and may be attached to all the bolt joint holes 53 b or a part of the bolt joint holes. You may attach only to 53b. In addition to bolts, any detachable fastening material can be used.

  As shown in FIG. 1, the connecting member 60 is connected to the substantially central portion of each adjacent garter 50. The connecting member 60 holds the adjacent garters at a predetermined interval and supports the sheet 80 from the inside of the temporary tent when covered with the sheet 80. The reason for providing such a connecting material 60 will be described later.

  In FIG. 10, the junction part of the connection material 60 and the garter 50 is shown. The connecting material 60 of the present embodiment is formed in a planar frame shape by connecting an upper chord material 61 and a lower chord material 62 by a rectangular connecting plate 63. The connecting plate 63 is provided at least at both ends of the connecting material 60, and an opening 63a and a bolt joint hole 63b are provided at predetermined positions thereof. Therefore, in order to join the connecting material 60 to the garter 50, the beam plate 53 of the garter 50 and the connecting plate 63 of the connecting material 60 are overlapped. Then, the bolt M may be inserted into the bolt joint holes 53b and 63b, and the nut N may be attached and fixed.

  The bundle member 70 is a member that is used when level adjustment is performed by joining the garter 50. The bundle member 70 includes a garter bundle 72 and a level adjustment bundle 73. The length adjustment holes 72a formed in the trunk portion of the garter bundle 72 at intervals of 100 mm, and the trunk portion of the level adjustment bundle 73 are 100 mm. It is possible to adjust to a desired length by aligning the length adjusting holes 73a formed at intervals and inserting and fixing bolts.

The bundle plate 71 is fixed to the tip of the garter bundle 72 and has substantially the same shape as the beam plate 53. Therefore, in order to join the bundle member 70 and the garter 50, the beam plate 53 and the bundle plate 71 are overlapped and joined with a bolt. Further, the level adjustment bundle 73 performs fine adjustment of the level by turning a position adjustment screw 75 screwed to a long nut 74 (not shown) joined to the lower end of the level adjustment bundle 73 and moving it forward or backward in the length direction. be able to.
FIG. 11 is an exploded perspective view for explaining a method of joining the garter bundle 72, the level adjustment bundle 73, and the garter 50. FIG. Moreover, FIG. 12 is explanatory drawing which shows the bundle member 70 assembled on the work floor. The level adjustment procedure will be described later in the column of the installation method of the temporary tent and the temporary tent beam member.

  The sheet 80 is supported by the garter 50 and the connecting material 60, is covered so as to cover the garter 50 and the connecting material 60, and is fixed to the upper chord material 51 of the garter 50. As the sheet 80 of the present embodiment, a known waterproof sheet is used. An alignment mark is printed in advance on the sheet 80 at a position fixed to the garter 50. Further, the attachment portion that comes into contact with the upper chord material 51 is pre-stretched and reinforced.

As will be described later, in the method for stretching the sheet 80 according to the present embodiment, a plurality of garters 50 are gathered together at one place on the rail, and the garters 50 and the adjacent garters 50 are in close proximity to each other. Install so that 80 is in a slack state. The garter 50 is moved to expand the sheet 80. When the garter 50 is moved to a predetermined position, the sheet 80 is tensioned substantially horizontally. Therefore, the alignment mark of the present embodiment is printed at an interval obtained by adding a fixing margin for fixing the sheet to the upper chord material 51 to the distance between the adjacent garters 50 in a state where the sheet 80 is tensioned.
When such an alignment mark is printed, the sheet 80 is fixed to the garter 50 in a slack state with the alignment mark as a reference, and when the sheet 80 is expanded after that, the sheet 80 is stretched almost horizontally. Can be done. Accordingly, there is no need to measure and attach at which position of the seat each time it is attached, and the attaching operation is simplified. Further, the sheet can be fixed at an accurate position, and the stretched sheet can be tensioned substantially horizontally.

The alignment marks of the present embodiment are printed on both side edges of the sheet 80 at a predetermined interval. The alignment marks may be fixed to both ends of the upper chord material of the garter 50, and the alignment marks are positioned at the positions. The position is not limited to such a position, and printing may be performed at any position as long as the fixing position of the sheet 80 can be determined. In addition, printing is performed not only on both side edges of the sheet 80 but also on the inner side of the sheet 80 so that the fixing position on the inner side that is fixed to the intermediate portion in the longitudinal direction of the garter 50 can be accurately positioned. You may keep it.
The alignment mark is not limited to printing, and any alignment mark can be used as long as the alignment position can be recognized. For example, a method of attaching a predetermined positioning member may be used.

  FIG. 13 shows a state in which the sheet 80 of the embodiment is covered from the top of the garter 50 and a part thereof is fixed. In this figure, the shape of the garter covered with the sheet 80 is indicated by a dotted line. A method of fixing the sheet 80 to the upper chord material 51 is as follows. A tube material 81 having a substantially C-shaped cross section having a predetermined length is fitted onto the upper chord material 51 from above the sheet 80. As a result, the sheet 80 is sandwiched and fixed between the upper chord member 51 and the tube member 81. And the clip 82 is further fitted from the outer side of the tube material 81 to the part where the both ends of the tube material 81 are easy to come off, and it fixes more firmly.

The tube material 81 and the clip 82 are detachable clamping members. The tube material 81 is made of an elastic resin product, and the sheet 80 and the upper chord material can be pushed in between the opening portion of the C-shaped cross section and sandwiched. The clip 82 is sandwiched by the spring member 82b from the outside of the tubular member 82a having a short C-shaped cross section, and can be sandwiched or removed by pivoting and rotating the spring member 82b to one end of the tubular member 82a. Is.
The procedure for releasing the fixed state of the seat 80 and the removal jig G used for the release will be described later.

  Next, the reason for providing the connecting material 60 will be described. FIG. 16 is a plan view of the temporary tent S. In this figure, the garter 50 covered with the sheet 80, the rail 30, and the connecting material 60 are indicated by dotted lines, and the temporary scaffold T and the building H are not shown. As shown in FIG. 16, the seat 80 is provided with drains 90 a to 90 h that communicate the outside and the inside of the temporary tent S. Then, drain hoses 91a to 91h (not shown) communicating with the inside of the temporary tent S are connected to the drains 90a to 90h, respectively. The drain hose can be removed so that it does not interfere with the construction work when drainage is not required. When the drainage hose is removed, a waterproof cap or the like can be fitted to the drains 90a to 90h and blocked.

  When rainwater accumulates on the seat 80, if the accumulated rainwater flows into the drain 90 well, it can be discharged out of the tent by the drainage hose 91. In the temporary tent S of the present embodiment, since the sheet 80 is fixed and supported on the upper chord material 51 of the garter 50 as described above, rainwater is distributed to both sides of the garter 50 with the upper chord material 51 as a boundary. Similarly, rainwater is distributed to both sides of the connecting material 60. That is, by providing the connecting material 60, the rectangular construction surface surrounded by the adjacent garter 50, the connecting material 60, and the rail 30 becomes one drainage load area, and the drainage load area is divided into two. And the drainage load area | region becomes another in the drainage burden area | region adjacent on these borders 60 as a boundary.

The applicant of the present application first conducted a trial experiment of a temporary tent in a configuration in which the connecting material 60 was not provided. At this time, the drain position was provided as in FIG. That is, two drains 90 are provided on the surface surrounded by the adjacent garter 50 and the pair of rails 30. In addition, the test was performed in other arrangements. As a result, it has been found that rainwater does not necessarily flow into the drain 90 and drainage cannot be reliably performed in a configuration in which no connecting material is provided.
That is, according to the result of the experiment, when the connection 60 is not provided, that is, when the drainage burden area is wide, a local puddle is formed in the drainage burden area. Such puddles were not generated at constant positions. Once such a puddle is formed, the rainwater collected there is not drained indefinitely unless the operator moves it to the drain position and drains it. As described above, the load on the portion of the sheet 80 where rainwater is concentrated and the member that supports the sheet 80 is increased, and the durability of the temporary tent S is adversely affected. In addition, it adversely affects the workability of construction work.

Therefore, as a result of repeated efforts, the applicant of the present application connected the central portions of the adjacent garters 50 with the connecting material 60 to divide the drainage burden area into two parts so that rainwater can be distributed to both sides with the connecting material as a boundary. . And as shown in FIG. 16, each drain 90a thru | or 90h was located in the drainage burden area | region, ie, the intersection of the diagonal of the rectangular composition surface surrounded by the adjacent garter 50, the connecting material 60, and the rail 30. . In this way, it has been found that drainage failure such as local puddles does not occur and drainage from each of the drains 90a to 90h is good.
In addition, when the support span of the garter 50 is made longer, the connecting material 60 is not necessarily the center of the garter 50. For example, the support span of the garter 50, that is, the distance between the rails 30 and 30 is divided into three. It may be provided at a position. At this time, if the drain 90 is positioned at the intersection of the adjacent garter 50, the connecting material 60, and the diagonal of the rectangular composition surrounded by the connecting material adjacent to the connecting material 60, the drainage failure does not occur.

(Installation method of temporary tent and beam member for temporary tent)
Hereinafter, a procedure for installing the temporary tent S of the present embodiment will be described.
(1) First, the structural members of the bracket 10 and the temporary tent S are carried on the temporary scaffold T or the work floor of the building H. Constituent members include rail support member 20, rail 30, roller mount 40, garter part 55, tether 60, garter bundle 72, level adjustment bundle 73, sheet 80, drain hose 91, sheet fixture (tube member 81, Clip 82). In addition, necessary tools and connecting members are carried up.

(2) Next, a rail is installed. That is, the bracket 10 is fixed to the vertical frame member R of the temporary scaffold T, and the rail 30 is fixed on the bracket 10 via the rail support member 20.
(3) Next, assemble the garter parts. That is, the beam plates 53 at the ends of the garter parts 55 are connected to assemble the garter 50 having a predetermined size and quantity. Then, the roller mounts 40 are attached to both ends of the garter 50.
(4) Next, the garter is bridged between the rails. That is, each roller mount 40 is attached to the rail 30 and a desired number of garters 50 are mounted.

(5) Next, the sheet 80 is stretched on the garter 50. First, all the garters 50 are gathered in one place on the rail and covered with the sheet 80. Then, the position of the alignment mark printed on the sheet in advance is aligned with the position of the upper chord material 51 of each garter 50 to fix the sheet to the upper chord material 51 of the garter 50. At this time, since the garters 50 are gathered together, the sheet 80 is in a state of sagging between the garters 50. 4 and 5 show the temporary tent S in this state. Thereafter, after the fixing operation of the sheet 80 and all the garters 50 is completed, the garter 50 is slid in the direction A in FIGS. 4 and 5 to expand the sheet 80 arranged in a bellows shape. Tension. 6 and 7 show the temporary tent S in this state.

(6) Next, in a state where the sheet 80 is in tension, each roller mount 40 is fixed to the rail 30. Although description is omitted in the column of the configuration of the temporary tent S, the roller mount is formed with a hole through which a rod-shaped fixing pin can be inserted from above at a position located directly above the rail 30. . In addition, fixing holes through which the fixing pins can be inserted are formed in the rail 30 at predetermined intervals. By providing this fixing hole in correspondence with the interval between the alignment marks on the sheet, the sheet 80 is stretched and stretched, and the roller mount 40 and the rail are inserted with a single fixing pin. It can be prevented from moving. In this method, since the fixing holes are formed in the rail 30 in advance, positioning becomes easy. However, in addition to this, the roller mount 40 may be fixed at a desired position using a known clamp or the like. .

(7) Next, the bundle member 70 is joined to the intermediate part of each garter 50, and level adjustment is performed. As shown in FIGS. 11 and 12, the bundle plate 71 fixed to one end of the garter bundle 72 and the beam plate 53 of the garter 50 are joined by bolts. Then, the length adjustment hole 72a and the length adjustment hole 73a are aligned so that the level of the garter 50 is closest to the design position, and a bolt is inserted to join the garter bundle 72 and the level adjustment bundle 73. . Then, the level adjustment bundle 73 is installed on the rooftop or work floor of the building covered with the sheet 80, the work floor of the temporary scaffold, etc. (shown as F in FIG. 12). In this way, after adjusting the approximate level, the level is finely adjusted by the position adjusting screw 75 provided at the lower end of the level adjusting bundle 73.

(8) Then, after performing level fine adjustment, the lower ends of the garter bundle and the roller mounts 4 at both ends of the garter 50 are respectively joined by the brace material 76 to give tension. Thereby, the deflection of the garter 50 is improved, and the garter 50 is held in a substantially straight state.
(9) Next, the intermediate portions of the adjacent garters 50 are connected by the connecting material 60.
(10) Finally, the drainage hose 91 is connected to the drain 90 to secure a drainage channel.

(Sheet release method and removal jig)
A method of releasing the fixation of the sheet 80 when dismantling the temporary tent of the present embodiment and a removal jig used therefor will be described.
FIG. 13 shows a state in which the worker has partially released the fixed state of the sheet 80. To release the fixed state of the sheet, the clip 82 is first removed, and then the tube member 81 is removed. . At this time, the worker performs work using the removal jig G.
FIG. 14 shows a perspective view and a side view of the removal jig G. FIG. The detaching jig G includes a plate-shaped grip portion G1 having a size that is just suitable for gripping with one hand, a thin plate-shaped projection portion G2 that protrudes from one end thereof at a predetermined angle, and a ridge formed at the base of the projection portion G2. A portion G3 and a thin plate-like protrusion G4 protruding at the end opposite to the protrusion G2 are provided.

  A belt-like raised portion is formed at the approximate center of the grip portion G1 along the longitudinal direction of the grip portion G1. And the hole part is formed in the both ends of this protruding part, and formation of a protruding part is made easy. By providing such a raised portion, the grip portion G1 has a shape adapted to the shape of a palm when grasped with one hand. And if it forms in this way, when rotating the grip part G1 so that it may mention later, it is easy to apply pressing force and turning force. Therefore, the burden on the operator is reduced.

  Each of the protrusions G2 and G4 is formed narrower than the grip portion G, and the tip thereof is formed in a thin plate shape so that it can be easily inserted into the gap under the tube material 81 or the clip 82. The protruding portion G2 is bent at the base portion thereof, and a protruding portion G3 is formed on the surface of the bent portion on the convex side. The protruding portion G4 has a plate surface protruding in the same plane as the plate surface of the grip portion G1, and extends from a corner portion which is one end portion of the end surface in the longitudinal direction of the grip portion G1. Thereby, the side edge of the grip part G1 and the side edge of the projection part G4 are connected linearly without a step. The protrusion G4 may protrude in the same direction as the protrusion G2, but is preferably connected to a corner of the grip part G1. If it is connected to the corner of the grip portion G1, the protrusion G4 is rotated with the rotation of the grip portion G1, and the lever is used to widen the gap under the tube material 81 or the clip 82. The principle can be used, and the gap under the tube material 81 or the clip 82 can be expanded with less force.

  When the operator uses the protruding portion G2, the operator inserts the protruding portion G2 into the gap below the tube material 81, and makes the raised portion G3 contact the sheet surface to which the tube material 81 is attached. Apply a force to push the lever toward the seat surface. In this way, by the lever principle, the protruding portion G2 is rotated with the raised portion G3 as a fulcrum and lifted from the seat surface, and the tube material 81 is peeled off from the seat 80 and the upper chord material 51.

  FIG. 15 shows a procedure for removing the clip 82 using the projection G4. First, as shown in FIG. 15A, the protruding portion G4 is inserted into the gap between the spring member 82b and the tubular member 82a. Next, as shown in FIG. 15B, the projection G4 is rotated about the extending direction. At this time, by rotating the wide grip portion G1, the protrusion G4 can be rotated with a smaller force to widen the gap between the spring member 82b and the cylindrical member 82a. Then, the spring member 82b is rotated and removed. And as shown in FIG.15 (c), the projection part G4 is inserted in the clearance gap between the cylinder material 82a and the tube material 81, and similarly the projection part G4 is rotated, and the clearance gap between the cylinder material 82a and the tube material 81 is made. The tube material 82a is expanded and peeled off from the tube material 81.

It is a top view of the temporary tent of an Example. It is sectional drawing of the temporary tent of an Example. It is sectional drawing of the temporary tent of an Example. It is explanatory drawing which shows the tensioning | laying method of the sheet | seat of an Example. It is explanatory drawing which shows the tensioning | laying method of the sheet | seat of an Example. It is explanatory drawing which shows the tensioning | laying method of the sheet | seat of an Example. It is explanatory drawing which shows the tensioning | laying method of the sheet | seat of an Example. It is a perspective view which shows the state which attached the rail, the roller mount frame, and the garter to the temporary scaffold. It is explanatory drawing which shows the joining method of the garter parts of an Example. It is a perspective view which shows the junction part of a garter and a connection material. It is explanatory drawing which shows the bundle member for adjusting the level of the garter of an Example. It is explanatory drawing which shows the bundle member for adjusting the level of the garter of an Example. It is explanatory drawing which shows the state by which the sheet | seat of the Example was fixed from the garter. It is explanatory drawing which shows the removal jig | tool which cancels | releases the fixing state of a sheet | seat. It is explanatory drawing which shows the procedure which removes a clip using a removal jig | tool. It is explanatory drawing which shows arrangement | positioning of the drain provided in the sheet | seat of the temporary tent of the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bracket, 11 Vertical frame material, 12 Horizontal frame material, 13 Single pipe connection material, 14 Single pipe clamp, 20 Rail support material, 30 Rail, 40 Roller mount, 41 Running part, 42 mount part, 43 Roller receiving material, 44 Roller, 50 Garter, 51 Upper chord material, 52 Lower chord material, 53 Beam plate, 53a Circular opening, 53b Bolt joint hole, 54 Reinforcement plate, 55 Garter parts, 60 Connecting material, 61 Upper chord material, 62 Lower chord material, 63 Connecting Plate, 63a opening, 63b Bolt joint hole, 70 Bundle member, 71 Bundle plate, 72 Garter bundle, 72a Length adjustment hole, 73 Level adjustment bundle, 73a Length adjustment hole, 74 Length nut, 75 Position adjustment screw, 76 brace material, 80 sheets, 81 tube material, 82 clips, 82a tube 82b Spring material, 90, 90a to 90h Drain, 91, 91a to 91h Drain hose, G jig, G1 gripping part, G2 protruding part, G3 raised part, G4 protruding part, F working floor, H building, M bolt, N nut, P pin member, Q protrusion, R, R1, R2 vertical frame material, S temporary tent, T, T1, T2 temporary scaffold

Claims (2)

A removal jig for detaching the fitting member fitted to the ridge,
A plate-like grip portion, and a first projecting piece portion and a second projecting piece portion each extending in a plate shape from an end portion in the longitudinal direction of the grip portion,
The first projecting piece portion and the second projecting side portion are formed to be narrower than the grip portion, and can be inserted into the gap between the fitting member and the protruding portion at each tip. Part is formed,
The first protruding piece portion has a bent portion, and a protruding portion having a predetermined height is provided on a surface of the bent portion on the side having a convex shape,
The removal jig, wherein the second projecting piece portion extends from one end portion of the end surface in the longitudinal direction of the grip portion.   The removal jig according to claim 1, wherein a protruding portion is formed along a longitudinal direction on a plate surface of the grip portion.

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