JP3236211U - Parent rope prop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a main rope support which has a compact structure and can be easily erected around wood.
SOLUTION: A main rope support 1 is provided on a support main body 2 extending along an axis A, a main rope attachment portion 3 provided on an upper portion 2a of the support main body 2 and to which a main rope P is attached, and a lower portion 2b of the support main body 2. The fixing portion 4 provided in the above is provided. The fixing portion 4 has a pedestal 41, 42 having a main body contact portion that contacts the support main body 2, a wood contact portion that contacts the wood 9, and a wood bolt 44. By fixing the main body contact portion of the pedestals 41 and 42 to the lower part of the support main body 2 and inserting the wood bolt 44 through the wood contact portion of the pedestals 41 and 42 and screwing it into the wood 9, the support column The main body 2 is fixed to the wood 9.
[Selection diagram] Fig. 1

Description

The present invention relates to a main rope strut used for arranging the main rope.

Workers working in high places such as the construction industry are required by law to use fall prevention equipment. The worker wraps a belt around the chest, shoulders, torso, thighs, pelvis, etc., and connects the end of the lanyard, which extends from the belt and is also called a "lifeline", to the main rope via a hook or the like.

For example, as described in Patent Document 1, the master rope is arranged by using a support. A main rope connecting member is provided in the upper part of the support column, and a holding means is provided in the lower part. The support is erected by the holding means holding the flange portion of the H-shaped steel. When the master rope is connected to the master rope connecting member, the master rope is arranged around the H-shaped steel.

Japanese Unexamined Patent Publication No. 2020-182615

By the way, in recent years, wood called CLT (Cross Laminated Timber) has been attracting attention against the background of the realization of a decarbonized society and the demand for revitalization of forestry. CLT is configured by laminating and adhering a plurality of sawn boards so that their fiber directions are orthogonal to each other, and is used for civil engineering materials, furniture, and structural materials for buildings. CLT with high strength and high fire resistance has also been developed, and is becoming widespread as a building material for high-rise buildings.

However, it is usual that wood such as CLT is not provided with a portion having a small thickness such as a flange portion of H-shaped steel. For this reason, it has been difficult to erect a specific part of wood by sandwiching it with a conventional support. Further, if an attempt is made to modify the conventional support so that the entire timber can be sandwiched, there is a risk that the sandwiching means becomes large and the standing work becomes difficult.

The present invention has been made in view of such problems, and an object of the present invention is to provide a main rope support that can be easily erected around wood in a compact configuration.

In order to achieve the above-mentioned object, the present invention is a main rope support used for arranging the main rope, which is provided on a main body of the support extending along a predetermined axis and an upper part of the main body of the main rope. It is provided with a main rope attachment portion to be attached and a fixing portion provided at the lower part of the main body of the column. The fixing portion has a pedestal having a main body contact portion that contacts the support main body, a wood contact portion that contacts the wood, and a wood bolt, and the main body contact portion of the pedestal is attached to the lower part of the support main body. The strut body is fixed to the wood by fixing and screwing the wood bolt into the wood through the wood contact portion of the pedestal.

According to this configuration, the worker can insert the wood bolt into the wood contact portion of the pedestal and screw it into the wood without providing anchor bolts or the like on the wood, and the support body can be made into wood. On the other hand, it becomes possible to fix it. As a result, with a compact structure, it becomes possible to easily erect a main rope support around the wood.

In the present invention, preferably, the fixing portion has a plurality of pedestals, and the plurality of pedestals are arranged at different positions around the axis.

According to this configuration, a plurality of places at the lower part of the main body of the column are fixed to the wood via the pedestal. As a result, the column body can be stably fixed to the wood.

In the present invention, preferably, the fixing portion has a plurality of main body bolts that insert the main body contact portion of the pedestal and the main body contact portion to fix the main body contact portion to the main body of the support column, and each other around the shaft. The main body bolts that insert the main body contact portions of adjacent pedestals are separated from each other in the direction along the axis.

According to this configuration, the plurality of body bolts can insert the column body without interfering with each other. Further, since a plurality of parts of the support column main body are fixed to the main body contact portion by such a main body bolt, the support column main body can be more stably fixed to the wood.

In the present invention, the pedestal is preferably a flat plate that has been bent.

According to this configuration, two flat plate-shaped portions of the flat plate located on both sides of the bent portion can be used as the main body contact portion and the wood contact portion. As a result, the pedestal can be made into a simple structure and its manufacturing cost can be suppressed.

In the present invention, preferably, the main body contact portion of the pedestal is formed so that the width gradually decreases toward the upper side.

According to this configuration, the upper part of the pedestal can be made compact. As a result, it is possible to prevent the pedestal from interfering with the movement of the worker due to the worker's feet being caught on the upper part of the pedestal.

According to the present invention, it is possible to provide a main rope support that can be easily erected around wood in a compact configuration.

It is a perspective view which shows the parent rope support which concerns on embodiment. It is an exploded perspective view of the main rope support of FIG. FIG. 1 is a cross-sectional view showing a section III-III of FIG. It is a side view of the main rope support of FIG.

Hereinafter, embodiments will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as possible in the drawings, and duplicate description is omitted.

[Constitution]
First, the configuration of the main rope support 1 according to the embodiment will be described with reference to FIGS. 1 to 4. 1 is a perspective view showing the main rope support 1, FIG. 2 is an exploded perspective view of the main rope support 1, and FIG. 3 is a cross-sectional view showing a cross section of FIG. 1 III-III, FIG. 4 Is a side view of the main rope support 1. 2 and 4 show an enlarged lower part of the main rope support 1, and FIG. 4 schematically shows the inside of the wood 9.

The main rope support 1 is installed at a construction site of a building using wood 9 which is a CLT. As shown in FIG. 1, the main rope support 1 includes a support main body 2, a main rope attachment portion 3, and a fixing portion 4.

The strut body 2 is a cylinder extending along a straight axis A. The column main body 2 is formed so that its cross section becomes a substantially quadrangular shape by extruding aluminum or bending a sheet metal. That is, the outer surface of the column main body 2 has four planes. As shown in FIG. 2, a hole 21 is formed on the front surface of the support column main body 2, and a hole 22 is formed on the right side surface. Although not shown in FIG. 2, a hole is formed on the rear surface of the column body 2 at a position corresponding to the hole 21 on the front surface, and on the right side surface of the column body 2 at a position corresponding to the hole 22 on the left side surface. A hole is formed. Further, as shown in FIG. 3, a reinforcing member 23 for reinforcing the support column body 2 from the inside is fitted and arranged inside the column body 2.

In the present specification, as shown in FIGS. 1 to 4, the vertically upward direction is referred to as "up", and the vertically downward direction is referred to as "down". 1 to 4 show a master rope strut 1 erected so that the axis A of the strut body 2 is erected along the vertical direction. Further, for convenience of explanation, the horizontal direction and the direction in which one of the four planes of the column main body 2 faces is referred to as "front", and the opposite direction is referred to as "rear". Further, in the horizontal direction, the left direction when facing forward is called "left", and the right direction is called "right". Such a posture of the master rope strut 1 does not limit the usage mode of the master rope strut according to the present invention.

A handle 24 held by an operator for transporting the main rope support 1 is provided on the front surface of the support main body 2. The handle 24 has a crank shape, and both ends thereof are held by fasteners 25 so as to be rotatable with respect to the support column main body 2.

As shown in FIG. 1, the master rope attaching portion 3 is provided on the upper portion 2a of the support column main body 2, and has a fitting member 31 and a bar member 32. Both the fitting member 31 and the bar member 32 have a substantially U-shape when viewed from the side. The fitting member 31 is fitted to the upper portion 2a of the support column body 2, is arranged so as to close the upper end of the support column body 2, and is fixed to the support column body 2 by bolts. The bar 32 is arranged so as to form a hole 32a with the upper surface of the fitting member 31, and both ends thereof are fixed to the fitting member 31.

The fixing portion 4 is provided in the lower portion 2b of the column main body 2, and has two pedestals 41, two pedestals 42, four main body bolts 43, and eight wood bolts 44. ing. FIG. 2 shows only a part of the eight wood bolts 44.

As shown in FIG. 3, the pedestals 41 and 42 are arranged at different positions around the axis A of the support column main body 2. Specifically, the two pedestals 41 are arranged so as to face each other in the front-rear direction with the lower portion 2b of the support column body 2 interposed therebetween, and the two pedestals 42 face each other in the left-right direction with the lower portion 2b of the support column body 2 interposed therebetween. It is arranged like this.

Further, the pedestals 41 and 42 are formed by bending a flat plate made of a metal material. As a result, as shown in FIG. 2, the pedestals 41 and 42 have the bent portions 411 and 421, and the flat plate-shaped main body contact portions 421 and 422 and the wood contact portions 413 located on both sides of the bent portions 411 and 421. , 423. The main body contact portion 412 of the pedestal 41 is formed so that its width gradually decreases from the width W11 to the width W12 toward the upper side, and two holes 414 separated in the vertical direction are formed. Further, the main body contact portion 412 of the pedestal 42 is also formed so that its width gradually decreases from the width W21 to the width W22 toward the upper side, and two holes 424 separated in the vertical direction are formed. Further, the wood contact portions 413 and 423 are formed with two horizontally separated holes 415 and 425, and the distance between the two holes 415 is different from the distance between the two holes 425.

The main body bolt 43 is a hexagon bolt. The main body bolt 43 is arranged so as to insert the washer 45, the holes 414 and 424 of the main body contact portions 421 and 422 of the pedestals 41 and 42, and the holes 21 and 22 of the column main body 2. A nut 46 is screwed into the tip of the protruding main body bolt 43. With this configuration, the main body contact portions 421 and 422 of the pedestals 41 and 42 abut on the outer surface of the lower portion 2b of the column main body 2, and the pedestals 41 and 42 are fixed to the lower portion 2b.

FIG. 4 shows pedestals 41, 42 adjacent to each other around the axis A. The two main body bolts 431 that insert the main body contact portion 412 of the pedestal 41 are separated from the two main body bolts 432 that insert the main body contact portion 422 of the pedestal 42 in the direction along the axis A. is doing.

As shown in FIGS. 2 and 4, the shaft portion of the wood bolt 44 has a pointed tip or is formed in a tapered shape, and has a tapping screw shape. The wood bolt 44 is screwed from the upper surface 9a of the wood 9 (that is, screwed while being screwed) through the holes 415 and 425 (see FIG. 2) of the wood contact portions 413 and 423 of the pedestals 41 and 42. ). At this time, a pilot hole may be formed in advance on the upper surface 9a of the wood 9. As a result, the column main body 2 is fixed to the wood 9, and the main rope column 1 is erected on the upper surface 9a.

A plurality of master rope columns 1 are erected on the upper surface 9a of the wood 9 at predetermined intervals (not shown). Both ends of the main rope P shown in FIG. 1 are attached to the bar 32 of the main rope attachment portion 3 of the main rope support 1 via hooks (not shown). As a result, the master rope P is arranged at a predetermined height (for example, 0.9 to 1.7 m) from the upper surface 9a of the wood 9. The operator connects the end of the lanyard (not shown) extending from the belt (not shown) wrapped around the chest, shoulders, torso, thighs, pelvis, etc. to the main rope P via a hook or the like.

[Action effect]
Next, the action and effect based on the above embodiment will be described.

According to the above configuration, the operator can easily insert the wood bolts 44 into the wood contact portions 413 and 423 of the pedestals 41 and 42 and screw them into the wood 9 without providing anchor bolts or the like on the wood 9. By doing so, it becomes possible to fix the column main body 2 to the wood 9. As a result, the master rope support 1 can be easily erected around the wood 9 with a compact structure.

Further, the fixing portion 4 has a plurality of pedestals 41 and 42, and the plurality of pedestals 41 and 42 are arranged at different positions around the axis A. According to this configuration, a plurality of locations of the lower portion 2b of the column main body 2 are fixed to the wood 9 via the pedestals 41 and 42. As a result, the support column main body 2 can be stably fixed to the wood 9.

Further, the fixing portion 4 has a plurality of main body bolts 43 for fixing the main body contact portions 421 and 422 to the main body 2 by inserting the main body contact portions 421 and 422 of the pedestals 41 and 42 and the support main body 2. Have. Further, as shown in FIG. 4, the main body bolts 431 and 432 that insert the main body contact portions 421 and 422 of the pedestals 41 and 42 adjacent to each other around the shaft A are separated from each other in the direction along the shaft A. There is. According to this configuration, the plurality of main body bolts 431 and 432 can insert the column main body 2 without interfering with each other. Further, since the plurality of parts of the support main body 2 are fixed to the main body contact portions 421 and 422 by such main body bolts 431 and 432, the support main body 2 is more stably fixed to the wood 9. It will be possible to do.

The pedestals 41 and 42 are flat plates that have been bent. According to this configuration, two flat plate-shaped portions of the flat plate located on both sides of the bent portions 411 and 421 can be used as the main body contact portion 421 and 422 and the wood contact portion 413 and 423. As a result, the pedestals 41 and 42 have a simple structure, and the manufacturing cost thereof can be suppressed.

The main body contact portions 421 and 422 of the pedestals 41 and 42 are formed so that their widths gradually decrease toward the upper side. According to this configuration, the upper portions of the pedestals 41 and 42 can be made compact. As a result, as shown in FIG. 4, since the spaces S1 and S2 can be formed on the upper portions of the pedestals 41 and 42, the feet of the worker may be caught on the upper portions of the pedestals 41 and 42, and the pedestal 41, It is possible to prevent the 42 from interfering with the movement of the worker.

The embodiment of the present invention has been described above with reference to specific examples. However, the present invention is not limited to these specific examples. That is, those skilled in the art with appropriate design changes to these specific examples are also included in the scope of the present invention as long as they have the characteristics of the present invention. Each element provided in each of the above-mentioned specific examples, its arrangement, material, condition, shape, size, and the like are not limited to those exemplified, and can be appropriately changed.

1: Main rope support 2: Main body 3: Main rope mounting part 4: Fixed part 41, 42: Pedestal 421,422: Main body contact part 413,423: Wood contact part 43,431,432: Main body bolt 44 : Wood bolt 9: Wood A: Axis P: Master rope

Claims (5)

It is a main rope support used for arranging the main rope.
A strut body that extends along a predetermined axis,
A main rope attachment portion provided on the upper part of the main body of the support and to which the main rope is attached,
A fixing portion provided at the lower part of the support column body is provided.
The fixing portion has a main body contact portion that comes into contact with the support main body, a pedestal having a wood contact portion that comes into contact with wood, and a wood bolt.
The support body is fixed by fixing the main body contact portion of the pedestal to the lower part of the support column body, and the wood bolt inserts the wood contact portion of the pedestal and screwes it into the wood. A master rope strut characterized by being fixed to wood. The fixing portion has a plurality of the pedestals and has a plurality of the pedestals.
The master rope strut according to claim 1, wherein the plurality of the pedestals are arranged at different positions around the axis. The fixing portion has a plurality of main body bolts that insert the main body contact portion of the pedestal and the support main body to fix the main body contact portion to the support main body.
The master rope according to claim 2, wherein the main body bolts for inserting the main body contact portions of the pedestals adjacent to each other around the shaft are separated from each other in a direction along the shaft. Prop. The master rope support according to any one of claims 1 to 3, wherein the pedestal is a flat plate that has been bent. The main rope support according to any one of claims 1 to 4, wherein the main body contact portion of the pedestal is formed so that the width gradually decreases toward the upper side.

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