JP3019661U - Safety fence for building frame - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a safety fence for a building frame that reduces the gaps on both sides of the path of the scaffolding to prevent workers from falling, and is also not bulky to store. [Structure] A safety fence 10 for a building frame, which is attached to a brace 47 that is attached as a cross bracing between adjacent columns of an erection frame 45, and is a quadrangle when viewed from the front when used. The mounting plates 11 to 14 respectively fixed to 47, and the end portions of the mounting plates 11 to 14 which are rotatably connected to the mounting plates 11 to 14 by the mounting pins 23 to 30, respectively, expand and contract the members constituting the two sets of opposing sides. Member 1
5 and 16 and bending members 19 and 20 which are bent outward or inward with respect to the quadrangle at the central portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a safety fence for a building frame, which is used when constructing a scaffold with a building frame for erection in construction work, for preventing workers from falling and reinforcing the building frame.

[0002]

[Prior art]

 When building a scaffold for work at a construction site, along the wall surface of a building, etc., the building frames for construction are connected and arranged by braces that are incorporated as cross braces, and a plate with a certain width is erected on the top. By doing so, it forms a foothold for workers to come and go. And, in the case of a tall building, the scaffolding is constructed by adding the building frame upwards in multiple steps according to the height. Further, since there are only crossing braces on both sides of the path of the scaffold, there is a large gap, which is insufficient to prevent a passing worker from accidentally falling from the side. Therefore, in general, on both sides of the scaffold passage, pass it as a handrail to the position of the waist of the worker who walks the iron pipe etc., and place the both ends or the intermediate position on the adjacent columns of the construction frame. By fixing each with wire, etc., it was used as a safety fence to prevent falling.

[0003]

[Problems to be solved by the device]

 However, there has been a problem that the conventional safety fence, in which only one handrail is provided to the crossing brace, is far from being sufficient as a safety fence to fill the gap on both sides of the passage. In addition, since one iron pipe is passed through as a handrail and both ends of the rail are simply tied together with adjacent wires of the construction frame using wires, there is a problem that the fixing force is not sufficient and it takes time to work. It was Of course, if that part is welded, the mounting strength will increase, but there was the problem that the work of removing and disassembling was time-consuming. The present invention has been made in view of such circumstances, and provides a safety fence for a building frame that reduces the gaps on both sides of the passage of the scaffolding to prevent workers from falling, and also does not store the bulky space. The purpose is to do.

[0004]

[Means for Solving the Problems]

 The safety fence for a building frame according to claim 1, which is in line with the above purpose, is a safety fence for a building frame that is attached to a brace that is installed as a cross bracing between adjacent pillars of a building frame for construction, and is a square when viewed from the front when used. There are a mounting plate arranged at each of the four corners and fixed to each of the crossed braces, and a member that rotatably connects the ends of the mounting plate to the mounting plate by means of mounting pins to form two sets of opposing sides. Each includes an elastic member and a bending member that bends outward or inward with respect to the quadrangle at a central portion.

The building frame safety fence according to claim 2 is the building frame safety fence according to claim 1, wherein the elastic member is a pipe and one of which is elastically mounted in the pipe. The bending member comprises second and third rods whose opposite ends are rotatably connected by a connecting pin. Further, the building frame safety fence according to claim 3 is the building frame safety fence according to claim 1 or 2, wherein the mounting plate is fixed to the brace by welding. The safety fence for a building frame according to claim 4 is the safety fence for a building frame according to claim 1 or 2, wherein the mounting plate is detachably fixed to the brace with a screw and a fixing band. The building frame safety fence according to claim 5 is the building frame safety fence according to claim 1 or 2, wherein a clip is provided on the attachment plate, and the clip is detachably fixed to the brace. It

[0006]

[Action]

 In the safety fence for a building frame according to claims 1 to 5, since the mounting plates are arranged at the four corners, it can be mounted and fixed to the braces incorporated as cross braces. In addition, the end portion of the member which is square when viewed from the front is rotatably connected to the mounting plate by a mounting pin, and one of the two members facing each other is respectively set. Since the central portion can be bent outward or inward, it can be folded into a substantially linear shape when not in use. Further, in addition to this, since the other set of members are each made of a stretchable member, they can be folded even while being attached to the intersecting braces.

Particularly, in the building frame safety fence according to claim 2, since the elastic member is composed of the pipe and the first rod in which one of the elastic members is elastically mounted, the existing pipe and the rod. It can be easily manufactured by using. Further, since the bending member is composed of the second and third rods whose opposite ends are rotatably connected by the connecting pin, the bending member can be easily manufactured, and the structure is simple and is not easily broken. Here, the first to third rods include both solid rods and hollow rods.

In the safety fence for a building frame according to claim 3, since the mounting plate is fixed to the brace by welding, complete mounting can be reliably performed.

In the safety fence for a building frame according to claim 4, since the mounting plate is fixed to the brace with the screw and the fixing band, it can be completely mounted and, when necessary, be removed. You can

In the safety fence for a building frame according to claim 5, since the clip provided on the mounting plate fixes the brace to the brace, the mounting and dismounting can be performed more easily.

[0011]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a front view of a safety fence for a building frame according to an embodiment of the present invention, FIG. 2 is an explanatory view of the same usage state, FIG. 3 is an explanatory view of the case where the same is detached and stored, and FIG. Fig. 5 is a side view of the building frame, Fig. 5 is an explanatory view of a state in which the brace is attached to the building frame and assembled, and Fig. 6 shows a state in which the mounting plate is fixed to the brace by welding. FIG. 7 is a cross-sectional view, FIG. 7 is an explanatory view when the mounting plate is fixed to the brace with a screw and a fixing band, and FIG. 8 is an explanatory view when the mounting plate is fixed to the brace by a clip provided on the mounting plate.

As shown in FIG. 1, a safety fence 10 for a building frame according to an embodiment of the present invention has mounting plates 11 to 14, and mounting plates 11 to 14 and their ends rotatably connected. The bending members 19 and 20 are connected to the elastic members 15 and 16 at the ends that rotatably face each other and are bent at the central portion. These will be described in detail below.

Each of the mounting plates 11 to 14 is made of a mild steel plate having a thickness of 3.2 or 4.0 mm and having a sufficient strength, and has a horizontally long hexagonal shape in which both upper corners of a horizontally long rectangle are cut. Has become. Further, two holes into which the mounting pins 23 to 30 to which the elastic members 15 and 16 and the bending members 19 and 20 are respectively rotatably connected are fitted are provided in the central portions on both sides.

The elastic member 15 comprises a pipe 17a made of mild steel or aluminum and a first rod 18a. One end of the pipe 17a is crushed into a flat plate to form a connecting portion 31, and a hole for connecting to the mounting plate 12 by the mounting pin 23 is provided. A first rod 18a having an outer diameter slightly smaller than its inner diameter is slidably mounted in the other end. One end of the first rod 18a is crushed into a flat plate to form a connecting portion 33, and a hole for connecting to the mounting plate 11 by the mounting pin 30 is provided. The other end is mounted in a pipe 17a having an inner diameter slightly larger than its outer diameter and is slidable. Here, the first rod 18a is a solid rod, but it may be a hollow pipe.

Like the elastic member 15, the elastic member 16 also includes a pipe 17b made of mild steel or aluminum and a first rod 18b. One end of the pipe 17b is crushed into a flat plate shape to form a connecting portion 32, and a hole for connecting to the mounting plate 14 by the mounting pin 27 is provided. A first rod 18b having an outer diameter slightly smaller than its inner diameter is slidably mounted in the other end. One end of the first rod 18b is crushed into a flat plate to form a connecting portion 34, and a hole for connecting to the mounting plate 13 by the mounting pin 26 is provided. The other end is mounted in a pipe 17b having an inner diameter slightly larger than its outer diameter so that it can slide. Here, the first rod 18b is a solid rod, but it may be a hollow pipe.

The bending member 19 includes a second rod 21 a and a third rod 21 b, which are made of mild steel or aluminum and have a length of 300 to 500 (preferably 400) mm, and a connecting pin 43 that connects them. Both ends of the second rod 21a are crushed into flat plates to form connecting portions 35 and 36, and the connecting portion 35 is provided with holes for connecting to the mounting plate 12 by the mounting pins 24. The third rod 21b and the connecting pin 43 connect the bending member 19 so that the bending member 19 can be bent outward or inward of a quadrangle formed by the elastic members 15 and 16 and the bending members 19 and 20 when used. There is a hole to do this. Both ends of the third rod 21b are crushed into flat plates to form connecting portions 38 and 37, and the connecting portion 38 is provided with a hole for connecting to the mounting plate 13 by the mounting pin 25. The second rod 21a is connected to the connecting pin 43 so that the bending member 19 can be bent outward or inward of the quadrangle formed by the elastic members 15 and 16 and the bending members 19 and 20 when used. There is a hole to do this.

The bending member 20 includes a second rod 22a and a third rod 22b made of mild steel or aluminum and having a length of 300 to 500 (preferably 400) mm. Both ends of the second rod 22a are crushed into flat plates to form connecting portions 39 and 40, and the connecting portion 39 is provided with a hole for connecting to the mounting plate 14 by the mounting pin 28. The third rod 22b and the connecting pin 44 connect the bending member 20 so that the bending member 20 can be bent outward or inward of the quadrangle formed by the elastic members 15 and 16 and the bending members 19 and 20 during use. There is a hole to do this. Both ends of the third rod 22b are crushed into a flat plate shape to form connecting portions 42 and 41, and the connecting portion 42 is provided with a hole for connecting to the mounting plate 11 by the mounting pin 29. The second rod 22a and the connecting pin 44 connect the bending member 20 so that the bending member 20 can be bent outward or inward of the quadrangle formed by the elastic members 15 and 16 and the bending members 19 and 20 during use. There is a hole to do this.

Here, as shown in FIG. 2, when the crossing angle of the brace is θ, the pipe 17a and the first rod 18a have a minimum overlap margin when the crossing angle θ becomes approximately 0 degrees. At this time, since the first rod 18a does not come off from the pipe 17a, the overlap margin is set to be larger than zero. In addition, the shortest length of the elastic member 15 is the longer length of the pipe 17a and the first rod 18a, and becomes the shortest when the lengths of the pipe 17a and the first rod 18a are equal. .

Next, a method of using the building frame safety fence 10 will be described. First, as shown in FIGS. 4 and 5, the building frames 45 for erection are arranged in parallel facing each other with a distance (H) of 1.83 m. Then, the holes provided in the connecting portions 48 at both ends of each of the two braces 47 that are connected by the rivets 49 and serve as the cross braces are fitted into the cross bracing pins 46 of the building frame 45. Similarly, on both sides, the braces 47, which are the cross braces, are incorporated to build the building frame 45. Next, the scaffolding board 50 is erected on the upper part of the assembled building frame 45 to assemble the scaffolding.

Then, as shown in FIG. 2, the mounting frames 11 to 14 provided at the four corners are welded to the braces 47 intersecting with the assembled building frame 45 to attach the building frame safety fence 10. . At this time, even if the type of the building frame 45 changes and the size thereof changes, or the distance between the building frames 45 arranged in parallel and facing each other changes and the crossing angle θ of the brace 47 changes, the elastic member 15, Since 16 can be expanded and contracted, it is possible to cope with it by adjusting its length and changing the mounting positions of the mounting plates 11 to 14 provided at the four corners.

Then, as shown in FIG. 3, after use, the building frame safety fence 10 is removed from the building frame 45 together with the braces 47, and the bending members 19 and 20 each have a rectangular outer shape which is the shape in use. Alternatively, since it can be bent inward and the elastic members 15 and 16 can be respectively expanded and contracted, they can be folded and stored while attached to the brace 47.

As described above, according to this embodiment, the mounting plates 11 to 14 of the building frame safety fence 10 are directly attached to the brace 47 by welding, so that they can be completely fixed. As a result, it is possible to reliably prevent the worker from stepping off the foot and falling. In addition, since it can be folded and stored together with the brace after use, it is not bulky and is convenient for storage and transportation.

Next, a method of fixing the mounting plate 13 of this embodiment to the brace 47 will be described in more detail. That is, FIG. 6 is an enlarged cross-sectional view taken along the line AA of FIG. 2 showing a state in which the mounting plate 13 is fixed to the brace 47 by welding. On the surface of the mounting plate 13, a brace 47 is directly welded and fixed between a mounting pin 25 and a mounting pin 26 that rotatably connect the third rod 21b and the first rod 18b. As a result, it can be securely fixed and can be secured without coming off during work.

In this embodiment, the mounting plate 13 is fixed to the brace 47 by welding, but as shown in FIG. 7, the mounting plate 13 a is fixed to the brace 47 by the screw 51 and the fixing band 52. You may let me. This not only ensures secure attachment, but can be removed if necessary.

Further, as shown in FIG. 8, a clip 53 may be welded and attached to the attachment plate 13b in advance, and the attachment plate 13b may be fixed to the brace 47 by this clip. This makes it easier to remove and improves the mobility of the work.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and changes in conditions without departing from the gist are all within the scope of the present invention. For example, in the above embodiment, the mounting plate is fixed to the brace with the fixing band and the screw, but the mounting plate may be directly attached to the brace with the screw without using the fixing band. Further, although the mounting plate and the pipe material are made of mild steel or aluminum, it goes without saying that any material may be used as long as it has sufficient strength.

[0027]

[Effect of device]

 The safety fence for a building frame according to any one of claims 1 to 5 can be directly attached to and fixed to the brace, which makes it possible to reduce the gap between the side wall surfaces of the scaffold, so that the worker can work through the gap. It is possible to prevent accidental fall and dramatically improve work safety. In addition, the end of each member is rotatably connected to the mounting plate, and one of the two members that face each other can be bent outward or inward at the central portion. When it is not used, it can be folded into a straight line, which is convenient for transportation and storage without being bulky. Further, in addition to this, since the other set of members are each made of a stretchable member, they can be folded even while being attached to the intersecting braces, and work efficiency can be dramatically improved.

Particularly, in the safety fence for a building frame according to claim 2, since the elastic member is composed of the pipe and the first rod in which one of the elastic members is elastically mounted, the existing pipe and the rod. Can be easily manufactured, and the cost can be reduced. Further, since the bending member is composed of the second and third rods whose opposite ends are rotatably connected by the connecting pin, the structure is simple and is not easily broken, the cost is low, and the durability is also high. Can also be improved.

In the safety fence for a building frame according to claim 3, since the mounting plate is fixed to the brace by welding, it is possible to surely perform complete attachment, and the safety fence for a building frame may come off during work. Without it, it is possible to secure sufficient safety.

In the safety fence for a building frame according to claim 4, since the mounting plate is fixed to the brace with the screw and the fixing band, it can be completely mounted and can be removed when necessary. Since it can be separated from the brace, it is convenient for storage and transportation.

In the safety fence for a building frame according to claim 5, since the mounting plate is fixed to the brace by the clip provided on the mounting plate, the mounting and dismounting can be performed more easily, and the maneuverability is enhanced. You can

[Brief description of drawings]

FIG. 1 is a front view of a safety fence for a building frame according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the same usage state.

FIG. 3 is an explanatory diagram of the case of removing and storing the same.

FIG. 4 is a side view of a building frame.

FIG. 5 is an explanatory view of a state in which a brace is attached to the building frame and assembled.

FIG. 6 is an enlarged cross-sectional view taken along the line AA of FIG. 2 showing a state in which a mounting plate is fixed to a brace by welding.

FIG. 7 is an explanatory diagram of a case where a mounting plate is fixed to a brace with screws and a fixing band.

FIG. 8 is an explanatory diagram of a case where a mounting plate is fixed to a brace by a clip provided on the plate.

[Explanation of symbols]

 10 Safety fence for building frame 11 Mounting plate 12 Mounting plate 13 Mounting plate 13a Mounting plate 13b Mounting plate 14 Mounting plate 15 Stretchable member 16 Stretchable member 17a Pipe 17b Pipe 18a First rod 18b First rod 19 Bending member 20 Bending member 21a 2nd rod 21b 3rd rod 22a 2nd rod 22b 3rd rod 23 Mounting pin 24 Mounting pin 25 Mounting pin 26 Mounting pin 27 Mounting pin 28 Mounting pin 29 Mounting pin 30 Mounting pin 31 Connecting part 32 Connecting part 33 connecting part 34 connecting part 35 connecting part 36 connecting part 37 connecting part 38 connecting part 39 connecting part 40 connecting part 41 connecting part 42 connecting part 43 connecting pin 44 connecting pin 45 building frame 46 cross bracing pin 47 brace 48 connecting part 49 Rivet 50 Scaffolding board 51 Screw 52 fixation Band 53 clip

Claims (5)

[Scope of utility model registration request] 1. A safety fence for a building frame, which is attached to a brace to be installed as a cross bracing between adjacent pillars of an erection frame and has a quadrangle when viewed from the front, wherein the brace is arranged at four corners and intersects. Mounting plates fixed to the mounting plate, and ends of the mounting plate rotatably connected to the mounting plate by mounting pins, and the members forming two sets of opposing sides are respectively the expansion member and the outer member with respect to the quadrangle. A safety fence for a building frame, which is composed of a bending member that bends inward or inward at the center. 2. The expansion / contraction member is composed of a pipe and a first rod, one end of which is expandably / contractably mounted therein, and the bending member has a second end rotatably connected by a connecting pin. The safety fence for a building frame according to claim 1, comprising a third rod and a third rod. 3. The safety fence for a building frame according to claim 1, wherein the attachment plate is fixed to the brace by welding. 4. The safety fence for a building frame according to claim 1, wherein the attachment plate is detachably fixed to the brace with a screw and a fixing band. 5. The mounting plate is provided with a clip,
The building fence safety fence according to claim 1 or 2, which is detachably fixed to the brace by the clip.