JP5812554B1 - Mounting bracket and mounting structure for strut mooring - Google Patents

Abstract

[PROBLEMS] To erect a strut for anchoring a master rope on a formwork using a commercially available formwork hardware when building beams and floor slabs of all construction floors including the top floor of a building. A male screw part of a commercially available Hurricane is inserted from the inner surface side of the mold frame to the outside, and a fastener such as a wedge-shaped main body having a female screw part is attached and fixed outside the mold frame. . Next, the fixing pin of the main rope mooring column mounting bracket is fitted into the fitting hole of the hull can, and the mounting bracket is fixed to the inner surface of the mold. The mounting bracket is fixed at two locations on the inner surface of the formwork. The main rope mooring column is inserted into the insertion hole provided in the upper and lower mounting brackets and the lower end of the column is brought into contact with the upper surface of the formwork beam floor. Stand up. [Selection] Figure 1

Description

  The present invention is at the time of building the form of beams and floor slabs on all the construction floors including the top floor of the building, and the post for mooring the master rope is made using a commercially available formwork hardware. The present invention relates to a technology that can be detachably attached to the frame.

Normally, when working at a high place on construction sites, it is obliged to install a master rope and connect the other end of the lifeline connected to the safety belt of the worker to the master rope with a hook member. It has been. Thereby, the worker can work safely while moving while the hook member of the lifeline is connected to the master rope.
Patent documents 1 and 2 show the technique of mooring the master rope in a construction site.

  The technique shown in Patent Document 1 is to secure a safety rope (master rope) mooring fixture to the main bar of the pillar protruding from the roof of the building under construction, and to secure the rope mooring members between the pillar and the pillar fixture. It is connected with a rope. The safety rope mooring fixture includes a pipe-shaped main body, a rope mooring member provided on the outer periphery of the main body, and a fastening bolt that is attached to the outer periphery of the pipe-shaped main body and penetrates into the pipe. It consists of A pipe-like main body is externally attached to the main bar of the column, and a fastening bolt is tightened to fix the main bar to the main bar.

In the technique of the main rope tensioning column shown in Patent Document 2, a clamp attached to a horizontal edge portion (H-shaped steel flange) of a steel frame is provided on the lower side of a column main body made of a square pipe material, and the upper end side of the column main body is provided. A loop portion is provided as a master rope engaging means. The mounting clamp is composed of a U-shaped side plate, an upper horizontal plate installed between both side plates, and two clamp bolts that threadably penetrate through the upper horizontal plate. The horizontal edge portion of the steel beam is sandwiched and fixed between the upper side of the lower protruding portion of the U-shaped side plate and the two clamping bolts.
The strut for straddle tension construction of Patent Document 2 is erected on the horizontal edge portion of the steel beam using a mounting clamp. And the end of the master rope called the master rope is connected to the upper loop portion of the master rope engaging means, or the middle portion of the master rope is inserted into the upper loop portion, so that the master rope is connected to the steel beam. It is trying to stretch along.

Also, in the past, a master rope was placed between the opposing faces of scaffolds (bide scaffolds, single-pipe scaffolds, log scaffolds, etc.) built around the building under construction for safety of workers. The work was done by connecting the lifeline of the belt with a hook.

JP-A-6-98945 Japanese Patent Laid-Open No. 8-100355

  In the technique shown in Patent Document 1, an attachment device for mooring a safety rope is attached to a main bar of a column protruding on the roof of a building under construction. In other words, the mounting condition is that the main bars of the pillar protrude from the roof of the building under construction. Therefore, in the case of building work of the formwork for constructing the beams and floor slabs on the top floor of the building, there is a drawback that the main reinforcement does not protrude and the master rope cannot be installed.

  Moreover, in the technique shown in the above-mentioned patent document 2, there is a portion that has a high rigidity and can be clamped by a U-shaped clamp portion, such as a horizontal edge portion (H-shaped steel flange) of a steel frame. It is a condition. However, there is no such steel beam at the time of the work of laying the top floor beam and floor slab of the reinforced concrete building. There was a disadvantage that it could not be adopted for the master rope installation at the time of building formwork.

  Furthermore, in the prior art in which the master rope is stretched between the opposing scaffolds, if the span of the building is long, slack occurs in the middle of the master rope, so the original function of the fall prevention master rope is There was a problem of being damaged. For this reason, conventionally, the intermediate portions of the opposing master ropes are linked to the cross to prevent loosening, but this is still insufficient and a new countermeasure has been desired.

Therefore, the present invention has been improved and removed in view of the above-mentioned problems, and is used for a formwork that is commercially available when building beams and floor slabs on all construction floors including the top floor of a building. It is an object of the present invention to provide a mounting bracket and its mounting structure that can use a hardware to stand a strut for anchoring a master rope on a formwork.

The means of claim 1 employed by the present invention in order to solve the above-mentioned problems is a metal fitting that is attached and fixed to the inner surface of the formwork in order to erect the strut for anchoring the master rope, and is joined to the inner surface of the formwork. A pedestal portion having a surface, a column support plate that protrudes inward from the pedestal portion, and has a through hole for a support for mooring the master rope, and is provided to protrude downward from the lower surface side of the column support plate It is a mounting bracket for a main rope mooring column, which is composed of a fixing pin and a bracket insertion opening provided in the pedestal portion.

The means of claim 2 adopted by the present invention to solve the above-mentioned problem is that the fixing pin is attached to and detached from the fitting hole of the metal fitting for the mold having a male screw part and a fitting hole of the pin-like member. The mounting bracket for the main rope mooring column according to claim 1, which can be freely fitted.

  The means of claim 3 adopted by the present invention in order to solve the above-mentioned problem is to dispose the mold hardware having the male screw part and the fitting hole of the pin-shaped member at two places on the upper and lower sides of the mold inner surface side. The male screw part of the metal mold for the mold is protruded toward the outer surface of the mold and the female screw member is screwed to fasten and fix the metal hardware for the mold at two locations on the inner surface of the mold. The two mounting brackets are prepared and each pedestal is joined to the inner surface of the mold, and each fixing pin is detachably fitted into the fitting holes of the upper and lower mold fittings. A main rope mooring column mounting structure characterized in that a main rope mooring column post is inserted into an insertion hole provided in a column receiving plate of the mounting bracket and is erected.

  The means of claim 4 adopted by the present invention in order to solve the above-mentioned problem is that the struts for anchoring the master rope are respectively provided at both ends of the beam formwork, and the master rope is anchored between these pillars. It is the attachment structure of the support | strut for mooring a master rope of Claim 3.

  The means of claim 5 adopted by the present invention in order to solve the above-mentioned problem is that the struts for anchoring the master rope are provided at both ends of the beam formwork and in the middle thereof, and the parent struts are respectively provided between these struts. 4. The support structure for anchoring a master rope according to claim 3, wherein the rope is moored.

  The mounting bracket of the invention of claim 1 includes a pedestal portion having a surface to be joined to the inner surface of the formwork, and a support plate that protrudes inward from the pedestal portion and into the formwork, and has an insertion hole for the main rope mooring post. have. Moreover, it has the pin for fixing provided by projecting downward from the lower surface side of this support | pillar receiving plate, and the opening part for metal fittings provided in the said base part.

  The mounting bracket according to claim 1 is attached to the mold using the metal fitting for mold according to claim 2. This metal mold for formwork is, for example, called “Harikan” and is commercially available.

As shown in claim 3, for example, a male screw part of a commercially available hull can be inserted from the inner surface side of the formwork to the outside so that the female screw is formed outside the formwork. A fastener such as a wedge-shaped body having a portion is attached and fixed. Next, the fixing pin of the mounting bracket according to claim 1 is fitted into the fitting hole of the sharpener. At this time, the base portion of the mounting bracket is surface-bonded to the inner surface of the mold. Thereby, it is possible to fix the mounting bracket to the inner surface of the mold.
The mounting bracket is fixed at two places on the inner surface of the mold. Then, the main rope mooring column is inserted into the insertion holes provided in the upper and lower mounting bracket column receiving plates, and the lower end of the column is brought into contact with the upper surface of the beam floor of the formwork. Stand up on the frame.

  As shown in claim 4, the struts for mooring the master rope are provided at both ends of the beam form, or as shown in claim 5, at both ends of the beam form and in the middle thereof. After that, it is sufficient to moor the master rope across these struts.

Thus, according to the present invention, when installing beams and floor slabs of all the construction floors including the top floor of the building under construction, the parent straddle strut mooring struts installed in the beam formwork are straddled. It is possible to stretch the parent rope as a rope without loosening it.
In addition, installation can be performed using commercially available metal fittings such as Hurricane, and the mounting bracket itself is basically sufficient simply by processing and forming an L-shaped metal plate. Therefore, it can be provided at a low cost, and it is possible to install the master rope at a low cost as a whole. In addition, even if the span (beam length) between the columns is long, it is possible to set up a strut for mooring the master rope in the middle, so that the master rope will not loosen in the middle .

It is a perspective view of the support | pillar mounting bracket for parent rope mooring which concerns on one embodiment of this invention. It is a front view which shows the state which attached | posted the support | pillar to the support | pillar mounting bracket for parent rope mooring which concerns on one embodiment of this invention. It is the figure which looked at the cross section of the formwork from the lower part in order to show the relationship between the support | strut for mooring the master rope concerning one embodiment of this invention, a mounting bracket, a formwork, and the metalwork for formwork. It is a longitudinal cross-sectional view which shows the relationship between the support | maintenance mooring support | pillar which concerns on one embodiment of this invention, a mounting bracket, a formwork, and the metalwork for formwork. It is a longitudinal cross-sectional view which concerns on one embodiment of this invention, and shows the relationship between the beam formwork and the floor slab formwork which installed the support | strut for mooring the master rope. It is a longitudinal cross-sectional view which concerns on one embodiment of this invention, and shows the formwork structure of the whole building in the state which erected the master rope support | pillar. It is a perspective view of the cooperation part of the pillar and beam which concerns on one embodiment of this invention and shows the state which installed the support | strut for mooring a master rope. It is a top view which shows the metal mold | die for molds which concerns on one embodiment of this invention and is called the marketed Hurricane.

The configuration of the present invention will be described below based on an embodiment shown in the drawings. FIG. 1 is a perspective view showing a mounting bracket 1 that is mounted and fixed on the inner surface side of a formwork in order to erect a master rope mooring column 2 (see FIGS. 2 to 7).
The mounting bracket 1 includes a disk-shaped pedestal portion 3 having a surface to be joined to the inner surface of the mold, and a column receiving plate 4 that protrudes in the horizontal direction from the pedestal 3 toward the inside of the mold. ing. Note that the pedestal portion 3 may not be a disc shape but may be a rectangular shape or other polygonal shape, as long as there is a portion that is surface-bonded to the pedestal portion 3.

An insertion hole 5 for inserting the support rope mooring support column 2 is formed in the support column receiving plate 4. A fixing pin 6 protrudes downward at a position near the pedestal portion 3 on the lower surface side of the column support plate 4. Further, support plates 7 and 7 for reinforcement for preventing the support column 4 from hanging down are provided near both ends of the support plate 4 on the lower surface side. It is welded to. Furthermore, an opening 8 for inserting a form metal fitting 9 (see FIG. 8) is provided in a portion of the pedestal portion 3 facing the fixing pin 6.

  The mounting bracket 1 of the parent rope mooring column 2 configured in this manner is fixed and attached to the inner surface of the mold using a commercially available metal fitting 9 called a hullican shown in FIG. It has become. As shown in FIG. 1, the metal mold 9 for the Hurricane is composed of a male screw portion 10 and a connecting portion 12 provided with a fitting hole 11 for fitting with the fixing pin 6. In the fitting hole 11, four lock members 13 that protrude and retract toward the center of the fitting hole are arranged by a built-in spring (not shown).

This Hurican formwork metal fitting 9 is normally used as one of the members for fixing the beam interval in the beam type frame, and is attached in cooperation with a U-shaped separator to reduce the beam interval. Keep it constant. The separator is separated from the beam form because the beam rebar is assembled outside the beam formwork, and then the entire beam rebar is lifted with a crane and installed in the beam formwork. This is because the assembled beam reinforcement cannot be installed in the formwork. After the beam reinforcing bars are arranged in the formwork, both ends of the separator are fitted into the fitting holes of the formwork hardware 9 so that the beam spacing is constant. The present invention makes use of such a commercially available metal 9 for formwork called Hurican.

Next, the construction point in the case where the main rope mooring column 2 is erected by using the mounting bracket 1 configured as described above will be described. First, as shown in FIG.3 and FIG.4, a round hole is made with a drill in the upper and lower two places of the formwork 14 of the position where the support line 2 for anchoring the master rope is erected. Then, the male screw portion 10 of the Hurricane mold metal fitting 9 is inserted into the round hole from the inner surface side of the mold frame to the outside, and a clamp 15 having a female screw portion such as a wedge-type main body is screwed outside the mold frame. The mounting bracket 1 is fixed to the inner surface of the mold.
Subsequently, on the outer side of the formwork 14, the steel pipe butterfly angle 17 is placed above and below the clamp 15 by abutting against the pier 16, and the steel pipe butterfly angle 17 is compacted using a double metalwork 18. 14 streets are ensured to be in a straight line, and strength is ensured so that the formwork 14 is not loosened when the beam concrete is placed. 3 and 4, reference numeral 19 denotes a veneer plywood or a decorative plywood of the mold 14.

  After that, the mounting bracket 1 of the main rope mooring column 2 is prepared, and the opening 9 is inserted with the metal frame 9 for the hullican frame, and the bottom surface of the column receiving plate 4 of the mounting bracket 1 is inserted into the fitting hole 11. The fixing pin 6 protruding on the side is fitted. Thereby, the base part 3 is surface-joined and arrange | positioned at the inner surface side of the formwork 14. An annular groove (not shown) is formed on the outer peripheral surface of the fixing pin 6 so as to be fitted with the lock member 13 of the metal frame 9 for the hull can frame to prevent inadvertent deviation. Yes. When forcibly removing, the lock member 13 is retracted, so that the removal is possible.

  After attaching the mounting bracket 1 to the metal frame 9 in a one-touch operation in this way, the main rope mooring column 2 is inserted into the insertion hole 5 of the column receiving plate 4 of the upper and lower mounting brackets 1, 1. What is necessary is just to make the lower end side contact | abut to the beam floor upper surface. Thereby, as shown in FIG. 5, it is possible to fix the main rope mooring column 2 rigidly to the inner surface of the mold.

  As shown in FIGS. 6 and 7, the master rope mooring column 2 is erected on both ends of the beam formwork 14. The one end side of the parent rope 22 may be connected to the annular mooring portion 21 with the ring mooring portion. Further, the mounting bracket 1 is erected on the inner surface side of the formwork by using the metal frame 9 for attaching the separator to the beam formwork 14, and even if the span of the beam formwork is long, it is in the middle. It is also possible to stand up and the parent rope 22 does not loosen.

As is apparent from the above description, in the present invention, as shown in FIGS. 6 and 7, the top floor beam and floor slab formwork of the building where the main bars of the column do not protrude are lower than the top floor. Even when the floor is enacted, the master rope mooring column 2 can be erected on the beam form 14 and the master rope 22 can be stretched. Thereby, the worker can perform the construction work of the beam and the floor slab with peace of mind.
After the completion of the construction, the master rope mooring column 2 and its mounting bracket 1 are removed, and a separator is attached across the hurrican molds 9 on the opposite inner surface side of the mold, What is necessary is just to perform concrete placement work while keeping the interval of the formwork constant.

By the way, as shown in FIG. 6, the main rope mooring column 2 is erected on both ends of the 7.2 m-long beam formwork 14, and the main rope 22 is stretched between the two. According to the experimental results of dropping a heavy object with a weight of 70 kg, any member of the mold 14, the mounting bracket 1, and the Hurricane mold metal 9 can sufficiently support the drop load and cause no damage. I didn't. Therefore, it has been found that the mounting structure of the mounting bracket and the main rope mooring bracket of the present invention can be practically used.

  By the way, this invention is not limited to embodiment mentioned above, A suitable change is possible. For example, the attachment metal of the brace mooring support column may be formed by bending a metal plate into an L shape, with one serving as a pedestal portion and the other serving as a support column receiving plate. Further, as the support, a pipe material such as a single tube, a prismatic pipe, a round bar, a prismatic bar, or the like can be used.

DESCRIPTION OF SYMBOLS 1 ... Bracket mooring support | pillar mounting bracket 2 ... Parent rope mooring support | pillar 3 ... Base part 4 ... Support | pillar receiving plate 5 ... Insertion hole 6 ... Fixing pin 7 ... Supporting plate 8 ... Opening 9 ... Metal fitting for formwork ( Hurricane)
DESCRIPTION OF SYMBOLS 10 ... Male screw part 11 ... Fitting hole 14 ... Beam formwork 15 ... Fastener which has a female screw part

Claims (5)

A bracket that is attached and fixed to the inner surface of the formwork in order to erect the struts for mooring the master rope, and a pedestal portion provided with a surface to be joined to the inner surface of the formwork, and projects inward from the pedestal portion, It is composed of a strut receiving plate having an insertion hole for a strut mooring strut, a fixing pin that protrudes downward from the lower surface side of the strut receiving plate, and a fitting insertion opening provided in the pedestal portion. A mounting bracket for a brace mooring post. The master rope mooring according to claim 1, wherein the fixing pin can be removably fitted into the fitting hole of a metal fitting for a formwork having a male screw portion and a fitting hole for a pin-like member. Mounting bracket for the support. Formwork metal fittings having male screw portions and pin-like member fitting holes are arranged at two locations on the upper and lower sides of the inner surface of the moldwork, and the male screw portions of the moldwork hardware are protruded toward the outer surface of the moldwork. The mold member is fastened and fixed to the upper and lower two locations on the inner surface of the mold by screwing the screw members, and two mounting brackets according to claim 1 are prepared and each pedestal is joined to the inner surface of the mold At the same time, each fixing pin is detachably fitted into the fitting hole of the upper and lower mold fittings, and the support for mooring the master rope is inserted into the insertion hole provided in the support receiving plate of the mounting bracket at two upper and lower positions. A structure for attaching a prop for mooring a master rope, which is characterized by being inserted and standing upright. 4. The structure for attaching a main rope mooring column according to claim 3, wherein a main rope mooring column is provided on each of both ends of the beam formwork, and the main rope is moored between these columns. The strut for anchoring the main rope according to claim 3, wherein struts for anchoring the main rope are provided at both ends of the beam formwork and in the middle thereof, and the master rope is moored between these struts. Mounting structure.

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