JP6012677B2 - Opening and closing device for scaffold curing sheet - Google Patents

Description

  In the present invention, a construction sheet (also referred to as a curing sheet) installed so as to cover a construction site such as a construction site such as a building, a demolition site, or a repair site from the outside is made of pipe material such as a single pipe or various scaffold materials. A scaffold curing sheet that can be installed (tensioned) on a formed scaffold without being covered with wind, and the installed sheet can be opened and closed like a curtain. The present invention relates to an opening / closing and tensioning system, that is, a curing sheet opening / closing / tensioning device.

  Conventionally, the installation technique of the curing sheet | seat which enabled it to open and close after installing the sheet | seat for construction in the external scaffold temporarily installed in the construction site is known by patent documents 1-3.

  However, the open / close structure of a construction sheet known from Patent Documents 1 to 3 is complicated by requiring a power source such as a hoisting machine for opening and closing or a transmission mechanism for opening and closing. Due to the mechanism and structure, there are many aspects that are not appropriate as temporary facilities such as scaffold curing sheets that are disassembled and removed after use.

  In view of this point, the inventor of the present application firstly provides a curing sheet for on-site construction with a very simple structure that does not use any power transmission mechanism such as a power source and a pulley, and tensions the temporary scaffold (installs tension). An application for opening / closing and tensioning a scaffold curing sheet at a construction site, which can be opened and closed freely like a so-called curtain in units of longitudinal sheets. Proposed previously as -246144.

The scaffold curing sheet opening / closing and tensioning device according to the previously proposed invention (hereinafter simply referred to as the “prior invention”) is a curing system having a grommet on the outer peripheral edge of a scaffold temporarily constructed using pipe material or the like at a construction site. In order to stretch the sheet, the curing sheet was stretched using two to three types of hanger rails laid between the vertical pipe members of the scaffold. That is, the hanger rail is provided with a clamp portion coupled to the pipe material at both ends of the rail or inside the both ends, and the eyelet of the seat is hung on the front side of the middle portion of the rail. A substantially L-shaped hook for stopping and supporting is projected, and a runner member is slidably laid over the rail.
And the usage mode of the said hanger rail is the upper hanger rail and the lower hanger rail in the uppermost part and the lowest part of these two vertical-pipe pipe material of the parallel in order to stretch a curing sheet | seat on a scaffold, and these intermediate parts. And it is the aspect which constructs an intermediate hanger rail. In other words, hooks attached to each hanger rail are provided in different directions for each hanger rail so as to hook the eyelets of the curing sheet stretched at the upper, lower, and intermediate portions of the scaffold. That is, the curing sheet stretching apparatus according to the previous invention is an apparatus in which dedicated hanger rails having different hook directions at the upper, lower, and intermediate portions of the scaffold are indispensable.
In the apparatus of the above-mentioned invention, by adjusting the position of the rail in the vertical direction on the pipe material by tensioning and relaxing the clamp part of the lower hanger rail as an example with respect to the vertical pipe material, The degree of tension can be adjusted, and when the seat is relaxed, the runner member can be slid on the rail, and the seat can be opened and closed between the vertical pipe materials. .

In the device of the previous invention, in addition to the jaw opening and closing type bolt fastening clamp used for the pipe material such as a single pipe, the clamp portion and the substantially U-shaped clamping piece for holding the vertical pipe material and the clamping It is possible to use a wedge-type clamp that is coupled to a piece so as to surround and close the pipe member. Further, as the clamp portion, a wedge member provided at both ends of a handrail of a wedge-tightening type scaffolding or a horizontal member (both pipe members) could be applied. The scaffold strut in this case is provided with a wedge receiver coupled to the wedge member.

  In the previous invention, the vertical pipe member is installed between two vertical pipe members, and is sandwiched between the lower hanger rails, and is located above the vertical portion of the vertical pipe member. An upper hanger rail that hooks the eyelets on the lower end side of the provided curing sheet, and a lower hanger rail that holds the eyelets on the upper end side of the curing sheet provided below the hanger rail, The combined form is formed, and this combined rail is an example of an intermediate hanger rail.

  In the intermediate hanger rail, the upper intermediate hanger rail hook has a substantially L-shaped vertical piece facing downward, while the lower intermediate hanger rail hook has a substantially L-shaped vertical piece facing upward. The upper and lower hooks incline the vertical pieces of both in a parallel posture, and avoid interference in the insertion and removal of the eyelet to each hook.

  In the previous invention, before the lower hanger rail in the scaffolding, a tension adjusting bar having the same clamping part as the clamping part provided at both ends is installed on the vertical pipe material of the scaffolding, and the curing sheet is attached to the bar. The installation form is such that it is turned through the lower side and hooks on the lower side of the seat are hooked on the hooks of the lower hanger rail.

  As described above, in the previous invention, in order to stretch the curing sheet having eyelets on the outer peripheral edge to the scaffold temporarily provided with a pipe material or the like, the upper portion constructed by the clamp portion between the vertical pipe materials of the scaffold The hook of the lower hanger rail is hooked to the eyelet of the curing sheet, and the clamp is tightened or loosened against the pipe material to adjust the vertical position of the rail on the vertical pipe material. By adjusting the degree of tension of the curing sheet, and when the curing sheet is loosened, the runner member on the rail is slid left and right so that the curing sheet can be opened and closed between vertical pipe materials. Without using a special power source or mechanism, the scaffold curing sheet can be installed in a tensioned state with a pin on the scaffold, and this sheet can be loosened like a so-called curtain In that it can be placed freely opened and closed with respect to the scaffold, but there was one breakthrough, it was found that there is also a problem to be solved yet.

  That is, the problem is that the structure of the upper hanger rail and the lower hanger rail and the intermediate hanger rail installed on the vertical pipe material of the scaffold in the previous invention is the eyelet member provided on the runner member provided in the rail. Since the direction of the hook for stopping is different, it is not a single part, so the type and number of parts for the scaffold curing net installation device increases, and the transportation and management of the parts are complicated. In addition, when installing, it requires extra care in order not to make a mistake in the application position of each hanger rail to be used, and it is difficult to perform an efficient installation work of the curing sheet.

Japanese Patent No. 3869852 Japanese Patent No. 5285472 Tokusho 2010-159617

  Therefore, the present invention is the same as the previous invention in that it has a simple configuration that does not use any power transmission mechanism such as a power source or a pulley, but compared with the previous invention, the form of each hanger rail is made common and the number of parts is reduced. It is an object of the present invention to provide a scaffold curing sheet opening / closing / clamping device that reduces the number of types, thereby reducing the cost of components and enabling efficient sheet installation work.

  The invention was made to solve the above problems. The structure of the scaffold curing sheet opening / closing and tightening device is constructed by stretching a curing sheet having eyelets on the outer peripheral edge to a scaffold temporarily constructed using pipe material or the like at the construction site. In order to do so, a tension rail is installed between the vertical pipe materials of the scaffold, and the tension rail has clamp portions coupled to the pipe material at both ends thereof, and both ends of the rails. An upward hook and a downward hook that hook and support the eyelet of the seat are projected on the front side of the runner member that is slidably laid between the tension rail and the tension rail. At least the uppermost part and the lowermost part of the ground pipe material are installed at the clamp part, and upward and downward provided by the installed tension rail. The eyelet of the curing sheet is hooked on the hook, and the tension of the sheet is adjusted by adjusting the position of the clamp portion on the vertical pipe material, and the runner member is slid on the rail. Thus, the curing sheet can be opened and closed between the vertical pipe materials.

  In the present invention, the clamp portion includes a generally U-shaped sandwiching member that holds the vertical pipe material, and a wedge member that is driven into a through hole provided on the open side of the sandwiching member and coupled to the sandwiching member. A wedge-type clamp is used in which the clamping member and the wedge member are coupled to close the pipe material in an annular shape. In the present invention, a jaw fastening type bolt fastening clamp can be used for the clamp part.

In this invention, the said clamp part is formed so that a front position or a back position can be selected with respect to a vertical pipe material. For this reason, the clamp part is attached to both ends of the rail member so that it can rotate 180 degrees around the axis of the pipe material, and when selecting the front or rear of the vertical pipe material from the current position, it is rotated 180 degrees to It is designed to be connected to pipe material.
Moreover, the said clamp part is provided so that the height of the clamp part on either side may become a vertically symmetrical position regarding the central axis of a rail member. This is to prevent the clamp portions of adjacent tension bars from interfering with each other on the same vertical pipe material when the tension bar of the present invention is continuously installed in the left-right direction of the scaffold.

  According to the present invention, the clamp portion provided at the left and right ends of the tension rail is provided to be rotatable on an axis parallel to the central axis of the rail, and is disposed on the front surface of the runner member slidably provided at the middle portion of the tension rail. The hooks that have a generally L-shaped hook are provided in double with the vertical pieces facing up and down, so the upper hanger rail and the lower hanger required by the previous invention with a single tension rail All of the rails and intermediate hanger rails can be used together, so that the types of parts can be reduced. In addition, when the scaffold is installed on the vertical pipe material, a single specification tension rail may be used at any of the upper, lower, and intermediate portions of the scaffold, so that the seat can be installed efficiently.

The perspective view of an example of the installation aspect of the curing sheet installed by the apparatus which concerns on previous invention. FIG. 6 is a perspective view of another example of the setting mode of the curing sheet by the apparatus of FIG. FIG. 2 is a perspective view of an example of an upper hanger rail of the apparatus of FIG. FIG. 2 is a perspective view of an example of a lower hanger rail of the apparatus of FIG. FIG. 2 is a perspective view of an example of a clamp portion of the apparatus of FIG. FIG. 2 is a perspective view for explaining a latching state of a hook of a runner member and an eyelet of a curing sheet of the apparatus of FIG. The perspective view for demonstrating the form example and installation aspect of a fixed rail. The perspective view of an example of the tension rail 100 used for the opening / closing and tensioning device of the curing sheet which concerns on this invention. FIGS. 9A and 9B are partial enlarged plan views for explaining the posture change of the clamp portions 101 and 102 in the tension rail 100 of FIG. 8, in which FIG. 8A is rotated by 180 degrees from the position in the example, and FIG. The top view which shows a state. 8 is a perspective view for explaining a state in which the tension rail 100 in FIG. 8 is installed on a single vertical pipe (also referred to as a vertical pipe material) instead of the upper hanger rail 2 (see FIGS. 1 and 2) in the previous invention. Figure. The plane sectional view for explaining the combined state of clamp part 101 and vertical ground single pipe 1. The perspective view for demonstrating the state which clamps the clamp part 101 of FIG. It is a perspective view for demonstrating another example of the stopper piece 101h used by the clamp part 101 of FIGS. 9-12, (a) is a figure before use of the stopper piece 101h, (b) is a figure at the time of use. The perspective view of the example which replaces the lower hanger rail 4 of this invention with the tension rail 100 of this invention of FIG. The perspective view of the example which replaces and uses the tension rail 100 of this invention for the intermediate hanger rail 3 of previous invention. The perspective view of the example which uses together this invention tension rail 100 and the fixed rail 103 in the lower part of a vertical ground single pipe. The perspective view for demonstrating the fixed rail of FIG. The perspective view of the curing sheet | seat containing the entrance corner stretched by this invention curing sheet opening and closing and tensioning apparatus.

Next, prior to the description of the embodiments of the present invention, a curing sheet tensioning device according to the previous invention and examples of its usage will be described with reference to FIGS.
1-4, 1 is a single vertical pipe (hereinafter referred to as a pair) of two standing uprights in a scaffold constructed and installed with a pipe material such as a single pipe so as to surround a construction site. In this specification, it is also referred to as a vertical pipe material). The scaffold is composed of a plurality of pairs of single pipes 1 (vertical pipes 1) and horizontal (horizontal) pipe materials (not shown) that connect the single pipes 1 in the horizontal direction. 1, FIG. 2 shows two vertical pipe materials and a top horizontal handrail pipe 1A which form a pair in the scaffold structure.

  1 and 2, 2 is an upper hanger rail constructed near the uppermost portion between the left and right vertical pipe members 1, 1, and 3 is an intermediate hanger constructed near an intermediate portion of the pipe members 1, 1. Rails 4 are lower hanger rails installed near the lowest part of the single tubes 1, 1, and 5 in FIG. 2 is for pinching the curing sheet 6 stretched on the hanger rails 2, 3, 4 in the vertical direction. Each of the upper hanger rail 2, the intermediate hanger rail 3, and the lower hanger rail 4 and the tension adjusting bar 5 is a tension adjusting bar. Forming equipment for curing sheets. The curing sheet 6 (hereinafter sometimes simply referred to as the sheet 6) is provided with eyelets 6a that are used for stretching and connecting the sheet at an appropriate constant pitch on the outer peripheral edge thereof.

3 and 4, the upper hanger rail 2 is provided with two clamp portions 21 coupled to the handrail pipe 1 </ b> A in the rear direction near both left and right (lengthwise) ends of the rail member 2 a, and the rail Two fixing hooks 22 that are substantially L-shaped when viewed from the fixed side surface are provided at both left and right end portions.
Between the rail member 2a sandwiched between the left and right fixing hooks 22 and 22 provided at both ends of the rail member 2a, the rail member 2a is straddled and can be freely slid on the rail member 2a. A plurality of runner members 23 having a substantially inverted U shape in cross section, and five in the example of FIG. 2, are slidably mounted.
On the front surface of each runner member 23, a hook 23a having the same form as the fixing hook 22 (substantially L-shaped in a side view) is provided. The hooks 22 and 23 a are hooks for hooking the eyelet 6 a of the curing sheet 6.

  As illustrated in FIG. 5, the clamp portion 21 in FIG. 3 is generally configured to sandwich the handrail pipe 1 </ b> A from above and below the rear end portion of a short mounting arm 21 a provided rearwardly on the rail member 2 a of the hanger rail 2. Upper and lower clamping pieces 21b, 21c formed integrally in a U shape are provided facing backward. The upper and lower clamping pieces 21b and 21c are formed with elongated holes 21d and 21e that share the central axis. The elongated holes 21d and 21e are wedge-shaped connecting pieces 21f (wedge 21f) from above. In other words, the generally U-shaped sandwiching pieces 21b and 21c are integrated with the coupling piece 21f and are closed so as to surround the handrail pipe 1A, and the handrail pipe 1A is firmly gripped from the outer peripheral surface. It is formed so as to be held at.

  In addition, although not shown in figure, the said clamp part 21 can use the clamp of a jaw fastening type bolt fastening type used for pipe materials, such as a single pipe. In addition, as the clamp portion 21, a clamp structure by a wedge member provided at both ends of a handrail of a wedge-tightening type scaffold or a horizontal member (both pipe members) and a wedge receiver provided on a scaffold column is applied. You can also

  In the upper hanger rail 2, the hooks 6, 22 provided at both end portions of the rail member 2 a are hooked by the eyelets 6 a at the left and right end portions on the upper side of the seat 6, and slide on the intermediate portion of the rail member 2 a. The hooks 23a of the runner members 23 that are freely mounted are shown in a perspective view in a manner in which the eyelets 6a existing between the eyelets 6a at both ends of the seat 6 are hooked.

In the seat installation apparatus of the previous application, as illustrated in FIG. 1, the intermediate hanger rail 3 is disposed at the joint portion of the six upper and lower two sheets. It is formed in a manner in which two rail members 2a similar to those in FIG.
That is, first, the intermediate hanger rail 3 has two rail members 3a and 3b, which are the same as the rail member 2a of the upper hanger rail 2, overlapped vertically by rail binding metal fittings 32 and 32 arranged at both ends of the rail members. They are united and joined together. The left and right bundling brackets 32 and 32 are provided with clamp portions 31 and 31 clamped to the left and right vertical ground single pipes 1 and 1 on their rear surfaces, and downwardly above and below the front surfaces of the bundling brackets 32 and 33. The hooks 32a and 32a and the upward hooks 32b and 32b are provided.

  Here, since the binding metal fitting 32 is externally fitted to the rail members 3a and 3b which are parallel in the upper and lower directions, the upper and lower rail members are interposed with a spacer portion in the middle so that the cross-section is substantially a letter shape. 3a and 3b are formed by two upper and lower square hole portions, and a downward hook 32a and an upward hook 32b are provided on the front surface of the metal fitting 32 side by side, and a clamp portion is provided on the rear surface of the metal fitting 32. 31 is provided. The clamp portion 31 is the same structure as the clamp portion 21 described with reference to FIG. 4, but the arrangement direction is 90 degrees different.

  In the intermediate hanger rail 3, the upper and lower runner members 33 are mounted on the upper and lower rail members 3 a and 3 b in a straddling manner at the intermediate portion sandwiched between the bundling brackets 32 and 32 at both left and right ends. , 34 are slidably laid over the rail members 3a, 3b. Here, it is arbitrary whether the two runner members 33 and 34 are in a straddling manner in which they are integrated with respect to the rail members 3a and 3b or in a straddling manner in a separated state.

  As shown in FIG. 1, the intermediate hanger rail 3 is configured such that the lower eyelet 6a on the lower side of the seat 6 positioned on the scaffold is hooked on the downward hook 32a of the upper rail member 3a, while the lower positioned seat 6a. Part of the curing sheet installation device for supporting the adjacent portion of the two sheets 6, 6 connected in the vertical direction by hooking the eyelet 6 a on the upper side of the arm 6 to the upward hook 32 b of the lower rail member 3 b Function as. Therefore, for example, if the left or right eyelet 6a of the upper sheet 6 in FIG. 1 is removed from the hook 32a, the upper sheet 6 is slid on the hanger rails 2 and 3 so as to open and close the curtain. 6 can be opened and closed with respect to the scaffold.

  The basic structure of the lower hanger rail 4 installed at the bottom of the scaffold illustrated in FIG. 1 is similar to the upper hanger rail 2 and the intermediate hanger rail 2 described above, and there is no significant difference. The description will focus on the common points and differences between the upper hanger rail 2 and the intermediate hanger rail 3.

In FIG. 1, the lower hanger rail 4 is provided with a mounting arm 41a on the left and right outer end surfaces so that it can rotate on its outer surface, and the clamp part 41 is connected to the rail member 4a central axis via the mounting arm 41a. The position can be changed up and down or back and forth.
The structure of the clamp part 41 is the same structure as the clamp part 21 described in FIG. 5, and the clamp object 41 is the vertical pipe material 1, 1 that is upright. However, it is in the same orientation as the clamp portion 31 of the intermediate hanger rail 3 in FIG. 7 in that it is rotated 90 degrees, but the orientation is different from the clamp portion 21 in FIG.

Fixing hooks 42, 42 are provided on the front surfaces of the left and right ends of the rail member 4a of the lower hanger rail 4, but a runner member 43 is provided in the middle of the rail member sandwiched between the fixing hooks 42, 42. However, five are provided here.
Each runner member 43 has the same configuration as the runner member 33 provided on the rail member 3a of the intermediate hanger rail 3 described above. That is, the runner member 43 includes a runner 43a having a substantially mouth-shaped cross section and a hook 43b provided downward on the runner 43a. The runner member 43 is provided in a form extending rearward so that the rear portion of the hook 43a passes through the runner 43a as it is.

  As shown in FIG. 1, the lower hanger rail 4 is installed at the lower part of the vertical pipe material 1, 1 of the scaffolding by being joined at the left and right clamp parts 41, 41, and is aligned with the lower side of the seat 6. The eyelets 6a of the left and right ends of the sheet 6 of the eyelets 6a are hooked on the left and right fixing hooks 42, and the eyelets 6a of the intermediate part are hooked on the hooks 43b of the runner members 43, respectively. Is stretched on the scaffold.

  The clamp part 41 provided on the lower hanger rail 4 is a wedge-type clamp having the same structure as the clamp part 31 of the intermediate guide rail 3, but the clamp part 41 of the lower hanger rail 4 is parallel to the central axis of the rail member 4a. It is provided so that it can be rotated 180 degrees forward and backward with respect to the shaft.

  That is, in FIG. 4, the clamp portions 41 provided at the left and right ends of the rail member 4a are provided toward the rear of the rail member 4a, but this direction can be changed forward with respect to the rail member 4a. . The structure for rotation of the clamp part 41 includes a substantially flat U-shaped holding piece 41c of the clamp part 41, mounting arms 41a and 41b for connecting the holding piece 41c to both ends of the rail member part 4a, and both arms. It consists of a bolt part 41c that acts as a joint of 41a and 41b. By loosening the bolt part 41c, the holding piece 41c can be rotated 180 degrees and positioned. A stop member such as a pin may be provided on the mounting arm 41b so that the clamp portion 41 does not rotate freely due to autonomous loosening of the bolt portion 41c.

  The position of the clamp part 41 can be changed to the front and rear with respect to the rail member 4a because the lower hanger rail 4 is used in the usage mode of FIG. 1 (the clamp part 41 is located rearward (the other side) by the rail member 4a. This is because the same hanger rail 4 corresponds to the usage mode of FIG. 2 (the clamp portion 41 is positioned in front of the rail portion 4a).

  FIG. 7 is a perspective view for explaining a tension adjusting rail 5 (hereinafter referred to as a fixed rail 5) used in combination with the lower hanger rail 4 in order to adjust the tension of the seat 6, and the fixed rail 5 and the lower hanger. The manner in which the rails 4 cooperate is shown in FIG.

  As illustrated in FIG. 7, the fixed rail 5 is a member that turns the lower side of the seat 6 that is lowered from above by turning the lower side of the bar 5 upward. The sheet 6 turned upward by turning is hooked by the upward hooks 42, 43 b of the lower hanger rail 4, which is installed above the fixed rail 5, with the eyelet 6 a on the lower side of the sheet facing upward. At this time, by moving the fixed rail 5 or the lower hanger rail 4 downward or upward on the vertical pipe members 1 and 1, the tension of the tension state in the vertical direction of the seat 6 is adjusted. can do. That is, the fixed rail 5 is also a member for tensioning the seat 6. The fixed rail 5 has the following configuration.

  The fixed rail shown in FIG. 7 includes, for example, a round bar or a pipe material formed on the bar member 5a, and includes mounting arms 51a that are rotatable on the axis of the bar member 5a on the outer surfaces of the left and right ends of the bar member 5a. ing. The mounting arm 51a has a clamp portion 51 on the distal end side, and a lower section of the arm 51a having a hole 51b for locking a tensioning hook of a tensioner (not shown). The connecting portion 52 is formed integrally with the mounting arm 51a. The clamp portion 51 of the fixed rail 5 has the same structure as each of the clamp portions 21, 31, 41 described above. 51 c is a wedge member of the clamp part 51.

As described above, in the previous invention, the vertical pipe materials 1 and 1 erected in parallel like the vertical single pipe forming the scaffold, the upper hanger rail 2 at the uppermost part, the lowermost part The lower hanger rail 4 or the rail 4 and the fixed rail 5 are installed in the part, and if necessary, the intermediate hanger rail 3 is installed in the intermediate part in the height direction of the vertical pipe members 1, 1. A curing sheet is stretched on the scaffolding by hooking a seat eyelet on the hook of each rail. Therefore, the upper and lower hanger rails 2 and 4 having different configurations and the intermediate hanger rail 3 and the fixed rail 5 that are used as necessary form a sheet stretching device.
In this apparatus, the curing sheet 6 can be tightly provided on the scaffold by hooking the eyelets 6a of the curing sheet 6 on the hooks of the respective hanger rails 2 to 4, and the sheet 6 thus stretched is also provided. It is an epoch-making thing that can be freely opened and closed like a so-called curtain by the action of the runner members 23, 33, 34, 43 that loosen its tension and slide on the hanger rails 2-4. There were still problems to be solved.

Therefore, the present invention has been completed to solve the above-described problems of the curing sheet stretching apparatus of the previous invention. Embodiments of the curing sheet opening / closing and tensioning device according to the present invention will be described below with reference to FIGS.
That is, in the present invention, in the previous invention, the above-described three types of hanger rails 2, 3 and 4 formed as individual structures as the upper hanger rail 2, the lower hanger rail 4 and the intermediate hanger rail 3 have a common structure, That is, it was configured as a single structure rail. In the present invention, this common single-spec rail is called a tension rail 100. Next, the configuration of the tension rail 100 of the present invention will be described with reference to FIGS.

  The tension rail 100 of FIG. 8 includes a rail member 100a equivalent to the rail member 2 of the previous invention, fixing hooks 100b and 100c provided at fixed positions on the left and right ends of the rail member 100a, and the rail member 100a. A plurality of runner members 100d slidably mounted (stranding) on the rail member 100a in an intermediate portion sandwiched between the fixing hooks 100b and 100c, and upper portions provided above and below the front surface of each runner member 100d Are provided with hooks 100e and 100f provided downward and lower hooks provided upward, and left and right clamp portions 101 and 102 supported on left and right outer end surfaces of the rail member 100a (see FIG. (See FIGS. 8 and 10). The left and right fixed hooks 100b and 100c are formed by hooks that form an upward and downward pair, like the upward and downward hooks 100e and 100f of the runner member 100d.

Since the left and right clamp portions 101 and 102 have the same shape symmetrical on the left and right, the clamp portion 101 will be described with reference to FIGS.
At both ends of the rail member 100a, bracket members 101a and 102a in an upright or inverted posture with respect to the axis of the rail member 100a are provided. Support arm portions 101c and 102c provided on the back surfaces of the substantially U-shaped clamp members 101b and 102b in a plan view are coupled to the front end portions of the bracket members 101a and 102a so as to be tightened and loosened by coupling bolts 101d and 102d. (See FIGS. 9 to 12).

As shown in FIGS. 11 and 12, a through hole 101f (102f) for driving the wedge member 101e (102) is formed on the distal end side of the substantially U-shaped clamp member 101b (102b). Also, a stopper piece 101h in which a hole 101g (102g) that receives the wedge member 101e (102e) to be driven and functions as a stopper is formed in the hole 101f (102f) into which the wedge member 101e (102e) is driven. (102h) is provided on one side of the clamp member 101b (102b) so as to be pivotally fixed by a shaft 101i.
The stopper piece 101h is provided in a fixed position turning structure by the shaft 101j. However, another example of the stopper piece 101h shown in FIG. 13 is that the stopper piece 101h is provided with a long hole 101k, and the long hole 101k is stopped by the shaft 101j. The stopper piece 101h can be slid and turned along the long hole 101k. Thus, the hole 101g in the above example was formed in a notch (slit) 101m having the same width as the hole diameter. With this configuration, another example of the stopper piece 101h is that when the wedge member 101e is driven and removed, the rising portion 101n of the stopper piece 101h is struck with a hammer or the like on the forward side or the backward side to engage the slit 101m with the tip of the wedge member 101e. Or disengaged the engagement.
Although the clamp member 102 is not shown in the figure, since it has the same structure as the clamp portion 101, the numeral before the alphabetical symbol in FIG. 11 is 102 (see FIG. 11).

As illustrated in FIGS. 9A and 9B, the clamp member 101 (102) rotates 180 degrees from the current posture (position of FIG. 9A) with respect to the axis of the rail member 100a (FIG. The function which can be made to the position of b) is provided.
The reason for providing this function is as follows. That is, the clamp portion 101 (102) is normally positioned on the rear side of the rail member 100a in order to position the rail member 100a in front of the vertical pipe material 1 (in front of the scaffold) and to be installed ( (See FIGS. 8, 14, and 15). On the other hand, the front position is selected in order to position the rail member 100a on the rear surface side of the vertical pipe material 1 when tension is applied to the curing sheet that is installed using the fixed rail 103 (see FIG. 15). It is.

Next, an example of the structure for position selection will be described.
A bolt 101d (102d) for connecting a bracket member 101a (102a) provided on the left and right outer end surfaces of the rail member 100a and a support arm portion 101c (102c) provided on the back surface of the clamp member 101b (102b) is provided. When loosened, as shown in FIG. 9A, the entire bracket portion 101 is formed so that it can be displaced (slid) on the bolt 101d.

  In this state, the slid bracket portion 101 is rotated 180 degrees around the coupling bolt 101d (102d) (see the rotation arrow in FIG. 8), and the position of the bracket portion 101 (102d) relative to the rail member 100a is 180 degrees. It can be changed by rotating (see FIG. 9B). When the position is changed, the loosened bolt 101d (102d) is tightened again to fix the changed position.

When the position of the bracket portion 101 (102) is changed (rotated by 180 degrees, see FIG. 9), the bracket bolt 101d is slightly slid on the bolt 101d by loosening the coupling bolt 101d (102d). This is because a blocking block 101j for blocking the autonomous rotation of the bracket member 101b is provided on the support arm portion 101c provided on the back surface of the bracket.
In other words, if the coupling bolt 101d (102d) is loosened in the bracket portion 101 (102) in use while the curing sheet is stretched, the rail portion 100a moves relative to the bracket portion 101 (102). This is inconvenient because the curing sheet is slack. Therefore, a blocking block 101j (102j) that prevents arbitrary rotation of the bracket portion 101 (102) is provided, and during the rotation operation to change the position of the bracket portion 101, the blocking block 101j (102j) escapes and the bracket portion 101 The rotation was ensured.

As described above, the tension rail 100 of the present invention has the rail members 100a on the clamp portions 101 and 102 provided at both ends, that is, the vertical single tubes 1 and 1 (vertical pipe materials 1 and 1) of the temporary scaffold. By providing clamp portions 101 and 102 for erection and rotating the clamp portions 101 and 102 with respect to the rail member 100a so as to fix the position thereof, the uppermost portion of the scaffold, It is sufficient to attach the same tension rail 100 to the vertical ground single pipe 1 at any position of the middle part and the lowest part.
Here, the clamp portions 101 and 102 provided on the left and right sides of the tension rail 100 of the present invention are provided in a vertically symmetrical positional relationship with respect to the axis of the rail member 100a. The reason why the left and right clamp portions 101 and 102 are set to have a vertically symmetrical positional relationship with respect to the rail member 100a is that when the tension rail 100 is continuously installed in the left-right direction of the scaffold at the same height, This is to prevent the clamp portions 101 and 102 of the adjacent rail member 100a from interfering with each other.

  In addition, the tension rail 100 includes the hooks 100e and 100f provided on the runner member 100d that can slide on the rails in the middle portion of the fixed hooks 100b and 100c provided on the left and right ends of the rail member 100a, and the hooks 100f and 100f that face downward. The hooks 100e are opposed to each other at the upper and lower sides, and the vertical pieces of the hooks are provided in a substantially parallel posture with the upper and lower hooks 100e and 100f at an oblique angle. In addition, the eyelets 6a on either the lower side or the upper side of the upper and lower joints of the curing sheet 6 are all locked to the hooks 100b, 100c and 100e, 100f without interfering with each other's operation. (See FIGS. 10, 14, and 15).

  Further, as shown in FIG. 16, the tension rail 100 according to the present invention is provided with a fixed rail 103 at the lower part of the vertical pipe members 1 and 1 and with a lower tension rail 100 above the fixed rail 103, The curing sheet 6 hanging from the turn is turned upward through the fixed rail 103, and the eyelets 6 a on the lower end side of the turned sheet 6 are respectively connected to the hooks 100 b and 100 c and the hooks 100 b and 100 e and 100 f of the tension rail 100. It can be used for tensioning the curing sheet 6 to form an entrance / exit in the temporary enclosure sheet.

  The fixed rail 103 used in FIG. 16 has the configuration shown in FIG. 17 as an example. The configuration of fixed rail 103 in FIG. 16 is substantially the same as that of fixed rail 5 in the previous invention shown in FIG. 16 and 17, reference numeral 103a denotes a rail member, and 103b and 103c denote mounting arms provided at both ends of the rail member 103. The clamp portions 101 and 103 described above are located behind the arms 103b and 103c (to the right in FIG. 17). Clamp portions 104 and 105 having the same configuration as that of 102 are integrally provided. Since the clamp parts 104 and 105 have the same structure as the clamp parts 101 and 102, description thereof will be omitted. In front of the mounting arms 103b and 103c (front side in FIG. 17), connecting portions 103d and 103e having a substantially L-shaped cross section are integrally provided. The mounting arms 103b and 103c are connected to the connecting portions 103d and 103e. The vertical wall is pivotally supported on the left and right outer end surfaces of the rail member 103a. 103f and 103g are hooking holes for stopping a lower tension hook of a tensioner (not shown) provided on the bottom wall of the connecting portions 103d and 103e. The tension device is a device using a hoisting machine or the like for applying a pulling force to the curing sheet.

  Although the tension rail 100 and the fixed rail 103 of the present invention are not shown, the length of the rail members 100a and 103a is different depending on the scaffold pitch (distance of the single vertical pipes 1 and 1). Prepared in advance. For example, since the scaffold pitches 1829 mm, 1524 mm, 1219 mm, 914 mm, and 610 mm are installed on the vertical ground single pipes 1, 1, the length of the rail members 100 a and 103 a is adjusted according to each pitch. It is prepared in advance. The number of runner members provided with hooks straddling the rail members is also adjusted in advance, for example, between 5 and 1 depending on the length of the rail members 100a and 103a to be used.

As described above, in the present invention, since the tension rail 100 and the fixed rail 103 having a plurality of types of rail members are prepared, even if it is a corner of a scaffold where the scaffold pitch is often small, The curing sheet can be stretched using the tension rail 100 and the fixed rail 103 of the invention.
FIG. 18 shows a main part of an installation example of the curing sheet 6 stretched by using the tension rail 100 and the fixed rail 103 of the present invention, and the tension rail 100 and the fixed rail 103 of the normal length, which are arranged to be short for the corner. FIG.

  The present invention is as described above, and in order to stretch the curing sheet on the scaffold, the parts laid on the single vertical pipe are located in any part of the scaffold in the height direction (top, middle, and bottom). Since it has a single structure tension rail with a structure that can be erected, it is possible not only to rationalize the types of parts used for laying the curing sheet, but also to lay the curing sheet on the rail. Since the operation is a single operation regardless of the position of the scaffold, a very efficient curing sheet can be laid.

The tension rail installed on the vertical single pipe can be firmly clamped to the single pipe with the seat tensioned, and the tension rail is provided with a runner member that can slide on the rail. Since the eyelet of the curing sheet is hooked on the hook provided on the member and the sheet is stretched, if the eyelet is removed from the fixing hooks at both ends, the sheet can be easily opened and closed like a curtain on the rail. be able to.
In the above description, the vertical pipe material of the present invention includes materials other than the pipe and the pipe material as long as the vertical single pipe and the vertical pipe material form the vertical ground of the scaffold.

  Therefore, the present invention is extremely useful as an apparatus for stretching a curing sheet on a scaffold so as to be freely opened and closed and in a tension state.

1 Longitudinal pipe material (single vertical pipe)
6 Curing sheet 6a Eyelet 100 Tension rail 100a Rail member 100b, 100c Fixed hook 100d Runner member 100e Downward hook 100f Upward hook 101, 102 Left and right clamp parts 101a, 102a Erect (inverted) bracket member 101b, 102b Clamp member 101c, 102c Support arm portion 101d, 102d Coupling bolt 101e, 102e Wedge member 101f, 102f Through hole 101g, 102g Stopper hole 101h, 102h Stopper piece 101i, 102i Stopper shaft 101j, 102j Blocking block 103 Fixed rail 104, 105 Fixed rail clamp Part

Claims (9)

  Tension rails erected between the vertical pipe materials of the scaffolding in order to stretch a rectangular curing sheet having eyelets on the outer periphery of the scaffolding temporarily constructed using pipe material or the like at the construction site. And an upward hook that hooks and supports the eyelet of the seat on the front side of a runner member that is slidably provided between both ends of the tension rail. A tension rail is formed by projecting a downward hook, and the tension rail formed in this way is installed in at least the uppermost part and the lowermost part of the vertical pipe material of the scaffold at the clamp part, and the installed tension The upper and lower hooks of the curing sheet are respectively hooked on the upper and lower hooks provided on the rail, and the vertical pipe of the clamp part By adjusting the position of the sheet, the tension of the sheet is adjusted, and by sliding the runner member on the rail, the curing sheet can be opened and closed between the vertical pipe members. The opening / closing and tensioning device for the scaffold curing sheet.   The tension rail according to claim 1 is installed as an intermediate tension rail at an intermediate portion in the height direction of the two vertical pipe members installed at the upper part and the lower part, and is disposed above the intermediate tension rail. By hooking the eyelet of the lower end side of the seat on the downward hook of the intermediate tension rail and hooking the eyelet of the upper end side of the seat provided below the intermediate tension rail on the upward hook, The opening / closing and tensioning device according to claim 1, wherein the upper and lower ends of the adjacent curing sheets are supported.   Below the tension rail provided at the lower part of the vertical pipe material of the scaffold, a fixed rail provided with clamp parts similar to the clamp part at both ends is installed at the clamp part, and the lower side of the curing sheet is set on the fixed rail. Turn through the lower surface side of the sheet and turn it toward the lower tension rail, hook the eyelet on the lower side of the seat on the upward hook of the tension rail, and change the position of at least the tension rail or fixed rail on the pipe material. The opening / closing and tensioning device according to claim 1, wherein the tension degree of the curing sheet is adjusted.   The clamp portion of the tension rail coupled to the vertical pipe material is rotated 180 degrees around the axis of the tension rail to be coupled to the pipe material in order to select a front position or a rear position with respect to the pipe material. The opening / closing and tensioning device according to any one of claims 1 to 3.   The opening / closing and tensioning device according to claim 4, wherein the clamp portions provided at the left and right end portions of the tension rail are provided so that the heights of the left and right clamp portions are vertically symmetrical with respect to the central axis of the rail member.   The clamp portion includes a substantially U-shaped sandwiching member that holds the vertical pipe material from the left and right sides, and is driven into a through-hole provided at the tip of the sandwiching member so as to cooperate integrally with the sandwiching member. The opening / closing / tensioning device according to any one of claims 1 to 5, further comprising a wedge member that surrounds and tightens.   The L-shaped hooks provided on the runner member are substantially L-shaped in a side view. The upper hook has the L-shaped vertical piece facing downward, the lower hook has the L-shaped vertical piece facing upward, and the vertical pieces of both hooks are The opening / closing / tensioning device according to any one of claims 1 to 6, wherein the hooking and detaching operations on the hooks do not interfere with each other by being inclined and provided in a substantially parallel posture.   The tension rail has substantially L-shaped hooks for hooking eyelets at both ends in the width direction of the curing sheet at both ends in the length direction, the vertical pieces are downward and upward, and the vertical pieces are inclined to be substantially parallel. The opening / closing / tensioning installation according to claim 1, comprising upper and lower fixing hooks. 7. Instead of the tension rail according to claim 1, which is constructed on a vertical pipe material of a scaffold, a rail member provided with an upward hook on a runner member is provided on the upper hanger for the tension rail constructed on the upper part of the vertical pipe material. As a rail, the tension member installed at the lower part of the pipe material is a rail member provided with a downward hook on the runner member as a lower hanger rail, and the tension rail installed at the intermediate part of the pipe material is provided with an upward hook on the runner member. A scaffold curing sheet opening / closing and tensioning device, wherein a rail member provided with a downward hook is used as an intermediate hanger rail and is erected on a vertical pipe material of the scaffold.

Images