JP2963025B2 - Steel pipe for temporary scaffolding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel pipe for a temporary scaffold used as a building pipe of a temporary construction scaffold for standing at a construction site.

[0002]

2. Description of the Related Art A temporary scaffold for construction is shown in FIG.
As shown in the figure, a scaffolding frame formed by connecting a building pipe 1, a fabric pipe 2, and a brace pipe 3 of various lengths with a rooting clamp 4, a climbing stair 5 and a brace pipe 3.
Is constructed from the scaffolds 6 of each floor supported by the floor, but after the first floor 7 is constructed as shown in the figure, the length is insufficient prior to constructing the upper second floor. The work of adding another building pipe 8 of another appropriate length to the building pipe 1 and attaching a fabric pipe or a brace pipe for the second floor are performed by the worker who has moved up to the first floor 7.

[0003] In order to prevent the worker from dropping when performing this upper floor construction work, it is necessary to hang the safety belt worn by the worker P on an appropriate member. Since only the ground pipe protrudes, there is no member suitable for hanging the safety belt. Therefore, conventionally, it has been necessary to stretch a safety band hooking rope called a parent rope between building pipes protruding on the work floor and to hook the safety band on the rope.
However, in reality, since it is very troublesome to install the rope for hanging the safety belt, it is normal for the worker P to construct the upper floor without using the safety belt. It was a dangerous situation.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are indicated by reference numerals in the embodiments described later. The steel pipe (10) and a safety strap hook (11, 20) attached at an appropriate height in the longitudinal direction of the steel pipe (10). ), And a temporary scaffold steel pipe provided with a metal fitting body (13, 23) rotatable around a safety band retaining hole (16, 26), wherein the metal fitting body (13) is a steel pipe (10). The upper and lower collars (12) of the upper and lower collar rings (12)
a, 12b) between the outer pipe and the steel pipe (1
A pair of upper and lower positioning rings (21, 22) externally fitted and fixed to (0)
It is characterized in that it is externally fitted so that it can be rotated only between them.

The metal fitting body (13) is composed of a bearing (14) rotatable around a steel pipe and a support shaft (15) substantially perpendicular to the length of the steel pipe. A rocking member (17) pivotally supported in the length direction of the steel pipe and having a safety band retaining hole (16) .In this case, the rocking member (17) is (A), a non-use position that swings approximately 90 degrees to the upper end of the steel pipe.
(B) and can swing only within a range of approximately 90 degrees.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 10 denotes a steel pipe used as a building pipe or the like.
It is a multiple length of 00 mm, mainly 18
Those with a size of 00, 3000, 4200 mm are frequently used. Numeral 11 denotes a safety band latch, which is composed of a ring 12 with upper and lower collars and a bracket body 13. The safety strap hook 11 is attached to the steel pipe 10 at an appropriate height, preferably at a position 300 mm from each of the upper and lower ends, and at an intermediate position of 600 mm therebetween.

The upper and lower flanged rings 12 of the above-mentioned safety band hooking fitting 11 are fitted around the steel pipe 10 and fixed by an appropriate method such as welding. The metal fitting body 13 holds the steel pipe 10 between the upper and lower collars 12a and 12b of the ring 12 with the upper and lower collars.
Bearing member 14 having a substantially C-shape that is rotatably fitted around the center thereof
And a support shaft 15 (such as a rivet) substantially perpendicular to the length direction of the steel pipe 10 between the pair of bearing plate portions 14a and 14b of the bearing body 14 so as to be swingable in the length direction of the steel pipe 10. And a swinging member 17 having a safety band hooking hole 16.

The oscillating member 17 is formed by bending and connecting bearing plate portions 17a and 17b from both sides of the base portion of the substrate having the safety band retaining hole 16, and the substrate side between the bearing plate portions 17a and 17b. The edge 17c abuts on the peripheral surface of the ring 12 with the upper and lower collars, thereby preventing the swinging member 17 from swinging toward the lower end side of the steel pipe from the use posture A projecting substantially perpendicularly and laterally from the steel pipe 10. Therefore, the swinging member 17 can be switched to the non-use posture B shown by a virtual line in FIG. The non-use posture B is held by the frictional resistance of the shaft supporting portion acting on the swing member 17, but a spring that biases the swing member 17 to the non-use posture B may be used together.

[0009] The temporary scaffold steel pipe 1 constructed as described above.
As a substitute for the conventional construction site pipe 1 shown in FIG. 7, a temporary scaffold for construction can be assembled as shown in FIG. At this time, the rocking member 17 of the metal fitting body 13 of each safety band hook metal fitting 11 is switched to the non-use position B, so that a worker who handles the steel pipe 10 or a scaffold assembled with the steel pipe 10 as a building pipe. It is possible to reduce the possibility that an operator passing on or near the scaffold may be hurt by the rocking member 17 of the safety band hooking metal fitting 11 and be injured, and swing when the steel pipe 10 is dropped on the ground or the like. The possibility that the member 17 is damaged is reduced.

Then, as shown in FIG. 4, when assembling the temporary scaffold for construction using the steel pipe 10 as a construction pipe, a safety band hook 1 for each steel pipe 10 (construction pipe).
1, the swinging member 17 in the bracket main body 13 of the safety band hooking metal fitting 11 located closest to the worker P is switched from the non-use posture B to the use posture A, and the swing member 17 in the use posture A is changed to the use posture A. By rotating the steel pipe 10 on the ring 12 with the upper and lower collars around the steel pipe 10 so as to face the worker P, the safety belt S worn by the worker P as shown in FIG. Using the hook Sf at the tip of the safety belt
The locking member 16 is locked in the hole 16 for locking the safety band of the swinging member 17 in the use posture A, and the fall of the worker P can be prevented. Of course, when the worker P moves, the safety belt S is detached from the rocking member 17 of the safety band hooking member 11, and the rocking member 17 is switched to the non-use posture B, and the position closest to the position after the movement is moved. The safety belt S may be hooked to the safety strap hook 11 in the above manner.

Another embodiment of the safety band latch is described with reference to FIGS. 5 and 6. The safety band latch 20 of this embodiment is composed of a pair of upper and lower positioning rings externally fixed to the steel pipe 10. FIG. The metal fitting main body 23 is externally fitted to the steel pipe 10 so as to be rotatable only between the steel pipes 21 and 22. As the metal fitting body 23, the metal fitting body 13 of the above embodiment may be used. However, the metal fitting body 23 of this embodiment is a rotatable ring shape formed by bending a strip-shaped metal plate along the steel pipe 10. Part 24;
A protruding plate portion 25 formed by overlapping both end plate portions extending from both ends of the ring-shaped portion 24 and being integrally fixed to each other by welding or the like, and a safety band retaining hole provided in the protruding plate portion 25. 26. The safety band hook 20 can be used in the same manner as the safety band hook 11 described above.

[0012]

As described above, the steel pipe for temporary scaffolding of the present invention can be used as a construction pipe by assembling and using a temporary framework scaffold for construction in the same manner as in the prior art, so that the steel pipe can have an appropriate height. The worker's safety band can be hooked on the attached safety band hooking bracket, so that the worker can be easily prevented from dropping. That is, despite the fact that there is no need for the labor and materials for stretching a safety strap hanging rope (parent rope) between the building site pipes as in the past, the worker who assembles this scaffold or is constructing from the scaffold. It is possible to easily and reliably prevent the worker who works on the building from falling due to the safety belt.

In addition, since the safety band latch attached to the steel pipe is provided with a bracket body rotatable around the steel pipe and provided with the safety band latch hole, the safety band latch hole is always provided. It can be positioned on the side where the worker is, and the safety belt can be hooked up to the safety strap hook at the shortest distance, so there is no inconvenience that the safety strap wraps around the steel pipe, and the work of hooking the safety strap is easy Can be done.

In addition, a projecting plate having a hole for securing a safety band is used so as to be able to lock the safety band from any side of the steel pipe as compared with a case where the projecting plate is projected from the steel pipe in all directions. The material can be reduced, the increase in weight of the entire steel pipe and the increase in cost can be minimized, and a hole for securing the safety band of the metal fitting body as in the embodiment shown in FIGS. 5 and 6 is provided. Even if the part cannot be folded, there is less chance of damage to the part provided with the hole for securing the safety band of the metal fitting body when the steel pipe is transported and stored, and the service life is prolonged.

Further, according to the first aspect of the present invention, it is possible to attach the metal fitting body (13) and the upper and lower flanged rings (12) in an integrated manner to the steel pipe (10). As a result, the assembly work is simplified. Further, according to the configuration of the present invention, the bracket main body (23) is rotatably positioned by the pair of upper and lower positioning rings (21, 22) which are externally fixed to the steel pipe (10). Therefore, the material used can be reduced as compared with the case where the upper and lower collar rings (12) are used.

According to the configuration of the third aspect, when the swinging member (17) having the safety band hooking hole (16) is not used, it can be folded into a posture along the steel pipe (10). In comparison with the case where the portion having the hole for securing the safety band protrudes from the steel pipe, the risk of damage to the portion having the hole for securing the safety band can be reduced, and the service life can be prolonged. As much as possible, there is less danger that the worker may be injured or the clothes may be damaged by the protruding portion having the safety band hooking hole. In particular, according to the structure as described in claim 4, when the safety band hooking bracket is used, the swinging member (17) having the safety band hooking hole (16) is stabilized in a substantially horizontal posture. The work of hanging the belt can be easily performed.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal side view showing a main part of a first embodiment.

FIG. 2 is a cross-sectional plan view of the same.

FIG. 3 is a side view showing the entire steel pipe provided with a safety band latch.

FIG. 4 is a perspective view of a temporary construction scaffold for construction assembled using the steel pipe.

FIG. 5 is a partially longitudinal side view showing a main part of the second embodiment.

FIG. 6 is a cross-sectional plan view of the same.

FIG. 7 is a perspective view of a conventional construction temporary scaffold assembled with steel pipes.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 steel pipe 11 safety band latching bracket 12 ring with upper and lower collars 13 bracket main body 14 bearing body 15 support shaft 16 safety band latching hole 17 rocking member 20 safety band latching bracket 21 positioning ring 22 positioning ring 23 bracket main body 24 ring -Shaped part 25 Projection plate part 26 Safety belt hook hole P Worker S Safety belt Sf Hook for hooking the tip of safety belt

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Nobuo Sugiyama 3-1 Ekimae Honcho, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Takauchi Sugi Co., Ltd. (72) Masanobu Maeizumi 3-4-4, Imazukita, Tsurumi-ku, Osaka-shi, Osaka 27 Kunimoto Shokai Co., Ltd. (56) References JP2, 44108 (JP, U) JP, 58-7920 (JP, Y2) (58) Fields surveyed (Int. Cl. ⁶ , DB name) E04G 5/02 E04G 7/20

Claims (4)

(57) [Claims] 1. A become from the steel pipe (10) with the steel pipe (10) of Ri taken lengthwise suitable height Tagged safety belt locking bracket (11, 20), the safety belt locking fitting (11, Reference numeral 20) denotes a temporary scaffold steel pipe provided with a metal fitting body (13) rotatable around the steel pipe (10) and having safety band retaining holes (16, 26) , wherein the metal fitting body (13)
Is a ring with upper and lower collars (12) externally fitted to the steel pipe (10)
A steel pipe for temporary scaffolding that is rotatably fitted between the upper and lower collars (12a, 12b) . 2. An appropriate height in the longitudinal direction of the steel pipe (10) and the steel pipe (10).
And a safety strap hook (11, 20)
The safety band latches (11, 20) rotate around the steel pipe (10).
It is equipped with a bracket body (23) that can be
A temporary scaffold steel pipe, wherein the metal fitting body (23)
Are a pair of upper and lower positioning links externally fitted and fixed to the steel pipe (10).
Steel pipe for temporary scaffolding that can be rotated only between the lugs (21,22) . 3. The bracket body (13) is rotatable around a steel pipe.
The bearing (14) and the bearing (14)
Can be swung in the length direction of the steel pipe by the support shaft (15) oriented substantially at right angles
Swinging member (17) which is rotatably supported by and has a safety band retaining hole (16)
Temporary scaffold steel according to claim 1 or 2 having and. 4. The swing member (17) is substantially perpendicular to the steel pipe (10).
Use posture (A) that projects sideways, and approximately 90
Within about 90 degrees between the non-use position (B)
The steel pipe for a temporary scaffold according to claim 3, wherein the steel pipe is swingable only .