JP2004324258A - Safety-net operating tool for building work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety-net operating tool for a building work, which has a supporting structure, in which a hanger is not shaken, and in which a rope for a safety net does not drop out from the hanger. <P>SOLUTION: In a guide body (2) as a mounting fixture for the safety-net operating tool for the building work, the guide body (2) supporting the hanger 8 is formed of a pipe, a notched-shaped holding groove (4) is formed from the direction that the hanger is inserted, a holding material (3) composed of a magnet material is installed on the inner wall of the pipe in the periphery of the groove (4) and approximately L-shaped hooks (6a) and (6b) in which front end sections are directed downwards in circular cross sections are mounted on the opposed surfaces of the pipe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
2. Description of the Related Art A safety net is provided in order to ensure the safety of workers from danger caused by dropping of workers or working tools during construction work of houses or the like. The present invention relates to a working tool used for attaching and collecting a safety net for building construction.
[0002]
[Prior art]
Regarding the conventional safety net mounting bracket and mounting jig, the following three examples can be shown.
[0003]
In the first example, a safety net mounting bracket in which a linear body is bent in a substantially U-shape and a bent portion is formed at an end is formed into a rod shape, and the bent back of the mounting bracket is formed at one end. One or more grooves are formed in which the portion or the vicinity thereof is inserted and supported, and the other end is formed with the other groove on which the peripheral rope of the safety net is hooked. (See, for example, Patent Document 1).
[0004]
The second example is an operation rod that engages with one end of a hanging metal fitting that locks the safety net at a predetermined position and performs a hooking operation, and a notch portion that engages one end of the hanging metal fitting with the tip of the operating rod. There is shown an operating rod composed of an engaging pipe having a telescopic pipe for adjusting the length, and a grip pipe held by an operator having a bent portion at a lower end (for example, see Patent Document 2).
[0005]
In a third example, a safety net hanging device for building construction is provided in which a shape of a safety net hanging device base is formed so as to be able to be fitted to a horizontal member such as a girder from above, and a hook portion for locking the safety net is provided on the base. In addition, there is shown a safety net attachment for a building construction comprising a safety net hanging tool provided with a hanging portion and a locking portion for locking a safety net at a tip end of a long rod body, and a lifting tool lifting rod body. (For example, see Patent Document 3).
[0006]
[Patent Document 1]
Japanese Patent No. 3051304 (page 2, column 4, lines 7 to 27, FIGS. 9 and 10)
[Patent Document 2]
No. 2952165 (page 2, column 3, lines 4 to 11, FIGS. 2 and 5)
[Patent Document 3]
No. 2893171 (page 2, column 3, line 34 to column 4, line 7, FIGS. 2 and 3)
[0007]
[Problems to be solved by the invention]
The safety net working tool for building work according to the present invention is mainly a hanging metal fitting, a mounting jig, and a connecting rod.
[0008]
A suspension fitting is a tool that is attached to a beam by a mounting jig and a connecting rod, and then used to suspend a safety net. The mounting jig is a tool used to hold the hanging metal fittings and the safety net and to set them at predetermined positions. The connecting rod is a long rod connected to and attached to the mounting jig, and is a tool for an operator to operate the mounting jig at a high place at a low place.
[0009]
However, there is a problem in attaching and collecting a safety net using a conventional safety net working tool for building construction.
In the first and second examples of the conventional example in which the safety net hanging fitting is inserted and supported in the groove provided at the end of the circular pipe of the mounting jig, the restraining force in the groove of the mounting jig is not sufficient. The hanging hardware was wobbly. In particular, when the hanging bracket is inserted into the hole of the beam and attached, it is difficult to set a target because it is at a high place and far from the position of the operator's eyes.Therefore, it is necessary to move the tip of the hanging bracket to the hole position of the beam and insert. It has been difficult to perform in a short time.
[0010]
When attaching the safety net to the hanging bracket, in the first and third examples of the prior art in which the safety net rope is mounted on a hook having a small depth of the support, the safety net swings up and down due to a falling object, and the safety net is suspended. There is a possibility that the rope of the safety net may come off from the hook of the bracket. Further, in the conventional example in which the hook opening width of the suspension fitting is considered to be narrow, it has been difficult to insert the rope into the hook and to attach the safety net in a short time.
Therefore, there has been a need to develop a mounting jig having a supporting method in which the hanging metal does not fluctuate, and a hanging metal that does not allow the rope of the safety net to fall off the hanging metal.
[0011]
[Means for Solving the Problems]
According to the present invention, in a guide body (2) which is a jig for mounting a safety net working tool for building work, the guide body (2) is formed of a pipe and has a notch-like holding groove from a direction in which a hanging metal fitting is inserted. (4) is formed, and a sticking material (3) made of a magnetic material is provided around the holding groove (4) and on the inner wall of the pipe. To solve the above-mentioned problems,
Furthermore, in the guide body (2), which is a jig for mounting a safety net working tool for building work, the guide body (2) is formed of a pipe and has a notch-like holding groove (4) from the direction in which the hanging metal fitting is inserted. ) Is formed, an attachment material (3) made of a magnetic material is installed around the holding groove (4) and on the inner wall of the pipe, and a circular cross-section is formed on the opposite surface of the pipe with a tip portion directed downward. The object is solved by providing a safety net working tool for building construction, characterized in that L-shaped hooks (6a) and (6b) are provided,
Further, a hanging metal fitting (8) having one end hooked at a predetermined position of a beam (H) under construction and the other end hanging a building construction safety net (9), wherein the hanging metal fitting (8). The both ends of the steel bar are bent in a substantially U-shape while leaving the straight portion (81) in the center portion, and the steel bar is formed in a substantially S-shape as a whole. The object has been solved by providing a safety net working tool for building construction characterized by having a narrowed portion (83) and an opening (82) formed by bending into a shape.
[0012]
【The invention's effect】
According to the present invention, in the work of attaching the safety net, the guide body is formed using a rectangular pipe, and the restraint of the suspending metal to the guide body is strengthened by the guide groove and the attachment material which is a magnet material. It became easier to operate the work implement, guide the suspension fitting to the target hole of the beam, and insert it, thereby shortening the work time.
Further, by providing a hook on the working tool, forming an opening and a throttle on the hanging metal, and forcibly putting the rope of the safety net into the rope space of the hanging metal, the worker and The possibility of the rope pulling out of the hanging bracket has been reduced even if a large vertical swing of the safety net occurs due to falling objects such as work tools. In addition, by forming the holding groove in the guide body, the use of the working tool can be performed in both the case of attaching the safety net to the hanging bracket and the time of collecting the hanging bracket. By connecting and fixing the guide body and the long rod body, it is possible to attach and recover a safety net for building construction to a high position where workers can not reach and work in a safe low place, and prevent the occurrence of personal injury It became possible to attach and collect safety nets in a short time.
[0013]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 2, the suspension fitting 8 is formed by bending a steel bar having a diameter of about 7 mm.
[0014]
The shape of the hanging bracket 8 will be described in detail. Both sides of the straight portion 81 are bent substantially in a U-shape, and one of the straight portions 81 is provided with a bent portion 86 following the straight portion 81, and furthermore, a straight insertion portion. 84 is provided. A stop portion 85 which is bent following the straight portion 81 is formed on the other side of the straight portion 81, and is further bent so that the interval between the substantially U-shaped end portion and the straight portion 81 is reduced. A net holding portion 87 is provided, and the end portion serving as the opening portion 82 is bent by the narrowing portion 83 so as to increase the distance between the linear portion 81 and the tip 89a, so that a rope space 88 is provided.
[0015]
The work implement 1 is composed of a guide body 2 and a long rod 7 as shown in FIG.
As shown in FIGS. 3A and 3B, the guide body 2 is formed from a square pipe. A pair of opposing planes 21m and 21n having long sides and a pair of opposing planes 21a and 21b having short sides form a rectangular pipe-shaped outer wall to form the guide body 2. .
[0016]
The shape of the guide body 2 will be described in detail. A surface cut at a right angle to the longitudinal direction of the rectangular pipe is defined as a lower end 212, and the upper end 211 is substantially formed from the straight line portion 81 of the hanging bracket 8 to the opening 82. By forming the holding groove 4 having substantially the same shape as the U-shaped inner contour line on the plane 21m and the plane 21n, the flat part side plane 22m and the straight part side plane 23m are provided around the holding groove 4 on the plane 21m. The narrow groove-side guide groove 4a and the linear part-side guide groove 4b are provided inside the rectangular pipe by forming the holding groove 4.
[0017]
Further, the guide body 2 has a stop pin 5 below the lower end of the holding groove 4, and the stop pin 5 is fixed between the planes 21m and 21n. The hooks 6a and 6b are hooks made of a metal material bent in a substantially L-shape with a circular cross section, and are firmly attached to the side surfaces 21a and 21b of the guide body 2.
[0018]
At the lower position of the stop pin 5, a bar fixing hole 26 f is bored through the plane 21 m and the plane 21 n perpendicular to the plane 21 m of the guide body 2. A similar lower portion 26g of the rod fixing hole is formed in a lower position of the upper portion 26f of the rod fixing hole. Similar upper and lower rod fixing holes 25a and 25c are formed in the side surfaces 21a and 21b of the guide body 2, respectively.
[0019]
The attachment material 3 is a sheet-like magnet, and is adhered to the linear portion side guide groove 4b along the back surface of the side surface 21b of the guide body 2.
[0020]
The use of the work implement 1 and the hanging fitting 8 used for attaching and collecting the safety net for building work according to the present embodiment will be described in detail.
As shown in FIGS. 1 and 3, the upper end of the long rod 7 inserted into the inside of the guide body 2 from the lower end side 212 of the guide body 2 is abutted against the stop pin 5, and the rod fixing hole 26 f and the rod fixation are performed. The guide body 2 and the long rod 7 are connected and fixed by an upper fixing member 27f composed of a bolt and a nut inserted into the lower hole 26g and a lower fixing member 27g.
[0021]
By connecting and fixing the guide body 2 and the long rod body 7, it is possible to attach and collect a building construction safety net to a high position where workers cannot reach and work in a safe low place, thereby preventing the occurrence of personal injury. As much as possible, it is possible to attach and collect safety nets in a short time.
[0022]
A method of fixing the hanging metal 8 to the guide body 2 of the work implement 1 will be described with reference to FIGS.
A substantially U-shaped portion formed by the linear portion 81 and the opening 82 of the hanging member 8 is inserted from the direction of the upper end portion 211 of the guide body 2, and the stop portion 85 of the hanging member 8 contacts the stop pin 5. Let it.
[0023]
That is, the opening 82 of the hanging member 8 is formed on the side of the guide portion 4a of the guide member 2 created by the flat surface 22m, the flat surface 22n, and the side surface 21a of the narrow portion. The straight portion 81 of the hanging member 8 is inserted into the guide portion 4b side of the guide body 2 created by the flat surface 23n and the side surface 21b. By inserting the suspension fitting 8 into the guide body 2, the linear part 81 of the suspension fitting 8, which is a bar steel material, is attracted and fixed to the attachment material 3 of the magnet material fixed to the linear part side guide groove 4 b of the guide body 2. You.
[0024]
As described above, the front, rear, left, and right movements of the suspension fitting 8 inside the guide body 2 are restricted by the linear part side guide groove 4b and the throttle part side guide groove 4a of the guide body 2 into which the suspension fitting 8 is inserted. The hanging fitting 8 is suction-fixed to the attachment 3 so that the hanging fitting 8 is prevented from dropping upward and does not wobble left and right.
[0025]
With reference to FIG. 5 and FIG. 6, the attachment and collection of the hanging metal 8 and the safety net 9 using the working tool 1 having the long rod 7 connected and fixed to the guide 2 of the present invention will be described.
First, the hanging metal fittings 8 are inserted and attached to the squeezed portion side guiding groove 4a and the straight portion side guiding groove 4b of the guide body 2, and the insertion portion 84 of the hanging metal fitting 8 is held by the elongated rod body 7 so that the target beam H is inserted. When the long rod 7 is inserted into the hole h (see FIG. 5B) and pulled down as it is, the hanging metal 8 is removed from the guide body 2, and the hanging metal 8 is attached to the hole h of the beam H.
[0026]
Subsequently, the rope 91 of the safety net 9 is hooked on the holding groove 4 of the guide body 2 of the work implement 1 (see FIG. 5C), and the rope 91 is held between the opening 82 and the linear part 81 of the hanging bracket 8. (See FIG. 5 (d)), hook the rope 91 on the hook 6a or 6b of the guide body 2 and pull the work implement 1 downward (see FIG. 5 (e)). After passing through the squeezing portion 83, it fits in a rope space 88 formed by the net holding portion 87 and the straight portion 81 (see FIG. 5F).
[0027]
The above description has been made up to the attachment of one suspension fitting 8 to the beam H and the installation of the rope 91 of the safety net 9 in the suspension fitting 8, but by repeating the above operation, the attachment of the safety net 9 is completed (FIG. 6). reference).
Next, the safety net 9 and the hanging bracket 8 are collected by inserting the bent portion 86 of the hanging bracket 8 into the holding groove 4 of the guide body 2 of the working tool 1 and lifting the working tool 1 upward to remove the hole h of the beam H. The insertion portion 84 of the hanging bracket 8 is further taken out, and the hanging bracket 8 is collected. The hanging bracket 8 is collected with the safety net 9 attached.
[0028]
In the above-described work of attaching the safety net 9, the guide body 2 is formed into a guide body 2 by using a rectangular pipe and the throttle part side guide groove 4a and the straight part side guide groove 4b and the attachment material 3 which is a magnet material. Since the restraining of the hanging metal fittings 8 is strengthened, it becomes easy to operate the work implement 1 to guide the hanging metal fittings 8 to the target hole h of the beam H and insert the same, and a reduction in working time can be expected. .
Further, the work implement 1 is provided with the hook 6a or 6b, the opening part 82 and the throttle part 83 are formed in the hanging metal part 8, and the rope 91 of the safety net 9 is forcibly placed in the rope space 88 of the hanging metal part 8. As a result, during building work, the possibility that the rope 91 will fall out of the hanging bracket 8 is reduced even when a large vertical swing of the safety net 9 occurs due to a falling object such as a worker and a work tool. In addition, since the holding groove 4 is formed in the guide body 2, the use of the working tool 1 is possible in both sides of attaching the safety net 9 to the hanging metal 8 and collecting the hanging metal 8.
[0029]
In addition, in the said Example, about the hanging metal fitting 8 which is this invention, the hanging metal fitting 8 formed so that it was inserted in the hole h of the beam H was illustrated, However, the beam H was made of wooden square material or other shapes. Even if the bent portions 86 and the insertion portions 84 are deformed and formed, the usable hanging fittings 8 can be provided. In addition, as for the attachment 3 of the guide body 2 according to the present invention, the attachment 3 made of a sheet-like magnet material and adhered to the linear portion side guide groove 4b is illustrated and described. The mounting position of the support member 3 is not limited to the linear portion side guide groove 4b, and may be any position as long as the hanging metal member 8 is inserted and is inside the guide body 2. A material exhibiting force or elasticity may be used. Furthermore, the hook 6a and the hook 6b of the guide body 2 have been described with reference to the hook having a circular cross section. However, the cross section may be a square cross section instead of a circular cross section. It may be attached to the flat surface 21n to provide a maximum of four.
[Brief description of the drawings]
FIG. 1 is a partially omitted front view of a work implement 1 according to an embodiment of the present invention.
FIG. 2 is an enlarged front view of the hanging bracket 8 according to the embodiment of the present invention.
FIG. 3 is an enlarged left side view (a) and an enlarged front view (b) of the guide body 2 according to the embodiment of the present invention.
FIG. 4 is an enlarged cross-sectional view showing a state in which the suspension fitting 8 is inserted into the guide body 2 according to the embodiment of the present invention.
FIG. 5 is an explanatory view showing a state in which the suspending fitting 8 and the safety net 9 are attached and collected using the work implement 1 according to the embodiment of the present invention.
FIG. 6 is a perspective view showing a state in which the hanging bracket 8 and the safety net 9 are attached to the beam H according to the embodiment of the present invention.
[Explanation of symbols]
Reference Signs List 1 work implement 2 guide body 21a side surface 21b side surface 21m plane 21n plane 211 upper end side 212 lower end side 22m throttle part side plane 22n throttle part side plane 23m linear part side plane 23n linear part side plane 25a above rod fixing hole 25c below rod fixing hole 26f Upper rod fixing hole 26g Lower rod fixing hole 27f Upper fixing material 27g Lower fixing material 3 Adhesive material 4 Holding groove 4a Restricted portion side guide groove 4b Linear portion side guide groove 5 Stop pin 6a Hook 6b Hook 7 Long rod 8 Hanging bracket 81 Straight section 82 Opening section 83 Narrow section 84 Insertion section 85 Stop section 86 Bend section 87 Net holding section 88 Rope space 89a Tip 89b Tip 9 Safety net 91 Rope 92 Net H Beam h Hole

Claims (4)

In the guide body (2), which is a jig for mounting a safety net working tool for building construction, the guide body (2) is formed of a pipe, and has a notch-like holding groove (4) from the direction in which the hanging metal is inserted. A safety net working tool for building construction, wherein an attachment material (3) made of a magnetic material is installed around the holding groove (4) and on the inner wall of the pipe. In the guide body (2), which is a jig for mounting a safety net working tool for building construction, the guide body (2) is formed of a pipe, and has a notch-like holding groove (4) from the direction in which the hanging metal is inserted. An adhering material (3) made of a magnetic material is installed around the holding groove (4) and on the inner wall of the pipe, and a substantially L-shaped circular section is formed on the opposing surface of the pipe with a circular cross-section and a tip portion directed downward. A safety net working tool for building construction, wherein hooks (6a) and (6b) are provided. A hanging bracket (8) having one end hooked at a predetermined position of a beam (H) under construction and the other end hanging a building construction safety net (9), wherein the hanging bracket (8) is a central part. The both ends of the steel rod are bent in a substantially U-shape while leaving the straight portion (81), and the whole is formed in a substantially S-shape, and the tip end on the side where the safety net (9) is hung is bent into a mountain shape. A safety net working tool for building construction, comprising a narrowed portion (83) and an opening (82) formed by being formed. The safety net working tool for building construction according to claim 2 or 3, further comprising a long rod (7) connected to the guide body (2) to be long.

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