JP7158027B2 - parent rope support - Google Patents

Description

TECHNICAL FIELD The present invention relates to a main rope support erected on H-shaped steel.

In civil engineering and construction work sites, a main rope support is erected on H-shaped steel of a steel frame, and the main rope is stretched over a temporary passage, and a safety belt lanyard is hung thereon. There are horizontal H-beams with vertical webs and horizontal flanges, and vertical H-beams with horizontal webs and vertical flanges. However, Patent Literature 1 discloses a temporary passage strut that can be erected on a vertical H-shaped steel.

This temporary passage strut is made so that the entire length can be expanded and contracted by slidably fitting a middle pipe to the opposite end of a horizontal base frame with a handrail strut raised at the tip. A vertical short frame is protruded halfway down the base frame, and a fixing hook is provided in the vicinity of the protruding point on the same line as the middle pipe, and a screw jack is formed using the vertical short frame, A moving hook is provided on the protruding end of the movable rod so as to face the fixed hook, and the lower end of the handrail post is curvedly extended below the horizontal base frame to be cross-connected to the lower end of the vertical short frame, and beyond. protrudes to the side of the vertical short frame to form a contact portion (claim 1).

Japanese Utility Model Publication No. 5-32589

In the prior art, the screw jack is actuated to move the moving hook opposite to the fixed hook via the movable rod, thereby clamping the vertical flange of the vertical H-shaped steel and erecting the handrail post. However, since only one moving hook faces the fixed hook, it is difficult to resist the force along the vertical flange. It is difficult to obtain stable support because it is only supported by

SUMMARY OF THE INVENTION It is an object of the present invention to provide a main rope strut capable of solving the problems of the prior art.
In the present invention, two moving hooks are arranged to engage the lower edge of the vertical flange with respect to the fixed hook which engages the upper edge of the vertical flange. To provide a main rope strut capable of being firmly and stably fixed to a vertically oriented H-shaped steel by supporting with a supporting member.

Specific means for solving the problems in the present invention are as follows.
First, a column body 3 arranged in the vertical direction along the vertical flange Hf of the vertically oriented H-shaped steel H, an engaging member 4 provided on the upper part of the column body 3 and through which the main rope P is inserted, A fixed hook 5 provided in the middle of the column body 3 and engaged with the upper edge of the vertical flange Hf, and a fixing hook 5 fixed to the column body 3 below the fixed hook 5 and along the upper edge of the vertical flange Hf. a lower support member 7 fixed to the column main body 3 below and in parallel with the upper support member 6; It has jack threaded rods 8 penetrating vertically, and moving hooks 9 screwed into the respective jack threaded rods 8 below the lower support member 7 and releasably engaged with the lower edge of the vertical flange Hf. characterized by

Secondly, the two moving hooks 9 are positioned at approximately the same distance from the fixed hook 5,
A detent means 12 is provided between the lower part of the column main body 3 and each of the moving hooks 9 for detenting rotation around the jack screw rod 8 while allowing the moving hooks 9 to move up and down.
Thirdly, the moving hook 9 includes a hook plate 9b having a lower engaging portion 9a that engages with the lower edge of the vertical flange Hf, and a hook plate 9b attached to the side surface of the hook plate 9b and perpendicular to the jack screw rod 8. A square tubular member 9c having a square hole oriented in the direction of the right angle and a nut member 9d disposed in the square tubular member 9c and screwed with the jack screw rod 8 are provided.

Fourthly, the column main body 3 is formed of a square tubular member having a front surface 3a facing the vertical flange Hf,
The upper and lower support members 6 and 7 are characterized in that they are formed of rectangular tubular members 6a and 7a which are in contact with the front surface 3a of the column body 3 and the vertical flange Hf.

ADVANTAGE OF THE INVENTION According to this invention, a master rope support|pillar can be erected firmly and stably to vertical H-shaped steel.
That is, in the invention according to claim 1, jack threaded rods 8 are provided to vertically pass through the upper and lower support members 6 and 7 on both sides of the fixed hook 5, and each moving hook 9 is connected by each jack threaded rod 8 to the vertical flange Hf. Since it is engaged with the lower edge, the master rope support 1 can be erected firmly and stably on the vertical H-shaped steel H.

According to the second aspect of the invention, the two moving hooks 9 are positioned substantially at the same distance from the fixed hook 5, and the anti-rotation means 12 is provided between the lower part of the post body 3 and each moving hook 9. The two moving hooks 9 can hold the vertical flange Hf in the same position with a force that is approximately equal to the hook 5, and the master rope support 1 is firmly and stably fixed to the vertical H-shaped steel H. can be done.

In the invention according to claim 3, the moving hook 9 is provided with a hook plate 9b having a lower engaging portion 9a, a square tubular member 9c attached to the side surface of the hook plate 9b, and a nut member 9d. Therefore, a simple and strong structure can be obtained.
According to the fourth aspect of the invention, the upper and lower support members 6 and 7 are formed of square tubular members 6a and 7a which are in contact with the front surface 3a of the support body 3 and the vertical flange Hf. It can be firmly fixed while being in close contact with the vertical flange Hf to prevent it from collapsing in the direction orthogonal to the vertical flange Hf.

1 is an overall side view showing an embodiment of the present invention attached to a large vertical H-shaped steel; FIG. It is the same whole front view. FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1; FIG. 2 is a cross-sectional view taken along line YY of FIG. 1; It is a cross-sectional side view attached to a small vertical H-beam. It is a cross-sectional front view attached to a small vertical H-shaped steel.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In civil engineering and construction work sites, a temporary passageway is formed on the H-shaped steel of the steel frame, and a master rope P is stretched over the passageway to engage the worker's safety belt. In order to stretch the main rope P, a main rope support 1 is attached to the H-shaped steel.
The H-shaped steel of the steel frame includes a horizontal H-shaped steel with a vertical web and horizontal flanges and a vertical H-shaped steel with a horizontal web and vertical flanges. Figures 1 to 4 show the state of attachment to a large vertical H-shaped steel (the vertical dimension of the vertical flange Hf is large), and Figures 5 and 6 show the small vertical H-shaped steel (the vertical dimension of the vertical flange Hf is small).

The main rope post 1 is roughly divided into a vertically long post body 3, an engaging member 4 provided on the upper part of the post body 3, a fixed hook 5 fixed to the middle part of the post body 3, and an upper support member 6. , a lower support member 7 fixed to the column body 3 below the upper support member 6, a jack screw rod 8 vertically penetrating the upper and lower support members 6, 7, and each jack screw rod 8 screwed together. and a moving hook 9.

The column body 3 is formed of a square cylinder having a front surface 3a, a back surface and left and right side surfaces, and is arranged vertically (vertically) along the vertical flange Hf of the vertically oriented H-shaped steel H. A handle 15 is provided. The support body 3 has a front surface 3a facing the vertical flange Hf.
The engaging member 4 has an L-shaped engaging portion 4a deviated to one side from the center in the left-right direction. The pair of engaging members 4 are arranged such that the L-shaped hooking portions 4a are shifted to the left and right, and the main rope P is engaged by inserting it into the L-shaped hooking portions 4a so as to sew the main rope P. It can be engaged with the member 4.

The fixed hook 5 has a pair of left and right hook plates 5b having an upper engaging portion 5a that engages with the upper edge of the vertical flange Hf, and a spacer 5c made of a rectangular tubular material disposed between the hook plates 5b. Both hook plates 5b are fixed to the left and right side surfaces of the column body 3 via fasteners such as bolts.
The upper support member 6 has a square tubular member 6a that is long in the horizontal direction perpendicular to the front surface 3a of the column body 3 and arranged along the upper edge of the vertical flange Hf, and the upper surface of the square tubular member 6a is fixed. It is close to the lower side of the hook 5, the rear surface is fixed to face the front face 3a of the support body 3, and the front face is contactable with the vertical flange Hf.

The upper support member 6 has end plates 6c fixed to both end faces of a square tubular member 6a, and upper pipe members 6d fixed to the rectangular tubular member 6a at two left and right positions so as to pass vertically through the rectangular tubular member 6a. ing.
A pair of upper pipe members 6d of the upper support member 6 are located on both left and right sides of the column main body 3 at substantially equal distances from the column main body 3, and form insertion holes for the jack screw rods 8. As shown in FIG.
The lower support member 7 has substantially the same structure as the upper support member 6. Both end surfaces of the rectangular tubular member 7a are closed by end plates 7c, and lower pipe members 7d are arranged vertically through the two left and right portions. , is parallel to the upper support member 6, the rear surface is fixed to the front surface 3a of the column body 3 in a perpendicular manner, and the front surface can be contacted with the vertical flange Hf.

A pair of lower pipe members 7d of the lower support member 7 are arranged on the same axis as the respective upper pipe members 6d of the upper support member 6, and a moving hook 9 is screwed to the lower side of the jack screw rod 8 and the jack screw rod 8. support it so that it does not move.
The moving hook 9 includes a hook plate 9b formed with a lower engaging portion 9a that engages with the lower edge of the vertical flange Hf, and a corner hook attached to the side surface of the hook plate 9b and perpendicular to the jack screw rod 8. It has a square tubular member 9c having a hole and a nut member 9d which is arranged in the square tubular member 9c and screwed with the jack screw rod 8. As shown in FIG.

The two jack screw rods 8 are rotated independently to raise and lower the moving hooks 9 individually. The two moving hooks 9 engaged with the lower edge of the vertical flange Hf are approximately the same distance from the column body 3 and the fixed hook 5, and are positioned approximately at the bottom two corners of an isosceles triangle with the fixed hook 5 as the apex. placed.
An engaging pin 19 formed by a bolt is horizontally penetrated and fixed to the moving hook 9 behind the nut member 9d. A detent means 12 is engaged with the elongated hole 20 to detent the rotation of the jack screw rod 8 while allowing the moving hook 9 to move up and down.

The jack threaded rod 8 has a head portion 8a at its upper end, passes through the upper and lower pipe members 6d and 7d, and has a threaded portion extending downward from at least the lower pipe member 7d. 9d is screwed.
A head portion 8a of the jack screw rod 8 can be rotated from above by a tool such as a wrench.

When attaching the master rope strut 1 to the vertical flange Hf on one side of the large vertical H-shaped steel (Figs. 1 and 2), move the moving hook 9 to the lowest position (below the lower edge of the vertical flange Hf). , the fixed hook 5 is engaged with the upper edge of the vertical flange Hf, the upper and lower support members 6 and 7 are brought into contact with the vertical flange Hf, and then the jack screw rod 8 is rotated to raise the movable hook 9 and move it. A hook 9 engages the lower edge of the vertical flange Hf.

When attaching the main rope strut 1 to the vertical flange Hf on one side of the small vertical H-shaped steel (Figs. 5 and 6), the moving hook 9 is moved below the lower edge of the vertical flange Hf in the same manner as above. , the fixed hook 5 is engaged with the upper edge of the vertical flange Hf, the jack screw rod 8 is rotated to raise the moving hook 9, and the lower engaging portion 9a of the moving hook 9 is attached to the lower edge of the vertical flange Hf. engage.
When the master rope post 1 is attached to the vertical flange Hf, the fixed hook 5 is engaged with the upper edge of the vertical flange Hf, and a pair of moving hooks 9 are attached to the lower edge of the vertical flange Hf below both sides of the fixed hook 5. , and the vertical flange Hf is sandwiched between one fixed hook 5 and two moving hooks 9, and the two moving hooks 9 are separated in the left-right direction along the vertical flange Hf and fixed hooks By engaging with the lower edge of the vertical flange Hf at a position substantially equidistant from 5, tilting in the direction along the vertical flange Hf is strongly prevented, and the upper and lower support members 6 and 7 abut against the vertical flange Hf, thereby providing a jack. A threaded rod 8 is supported by upper and lower support members 6 and 7 via upper and lower pipe members 6d and 7d.

It should be noted that the present invention is not limited to the above-described embodiments, and the shape, configuration, combination, etc. of the members can be changed.
For example, the fixed hooks 5 may be arranged at positions (two positions) substantially corresponding to the jack threaded rods 8, or the hook plate 5b and the spacer 5c may be integrally formed. Moreover, the fixed hook 5 may omit the spacer 5c.

The upper and lower support members 6 and 7 are formed by forming the upper and lower pipe members 6d and 7d passing through from a single continuous pipe, or by omitting the cylindrical members 6b and 7b, the end plates 6c and 7c and the upper and lower pipe members 6d and 7d. Alternatively, it may be formed only by the rectangular tubular members 6a and 7a. Further, a channel material may be used instead of the square tube materials 6a and 7a.
A wire rope is generally used as the master rope P, but a single pipe handrail may be attached instead. good.

As the detent means 12, instead of the engaging pin 19 and the long hole 20, a channel member slightly larger than the column body 3 is attached to the moving hook 9, and this channel member can be vertically moved to the column body 3. It may be configured to fit.

1 master rope post 3 post main body 3a front surface 4 engaging member 4a L-shaped engaging portion 5 fixed hook 5a upper engaging portion 5b hook plate 5c spacer 6 upper supporting member 7 lower supporting member 8 jack screw rod 9 moving hook 9a lower engagement Part 9b Hook plate 12 Anti-rotation means 19 Engagement pin 20 Long hole H Vertical H-shaped steel Hf Vertical flange P Master rope

Claims (4)

A strut body (3) arranged vertically along the vertical flange (Hf) of the vertical H-shaped steel (H), and a main rope (P) provided on the top of the strut body (3) through which the main rope (P) is inserted. and a fixed hook (5) provided in the middle of the column body (3) and engaged with the upper edge of the vertical flange (Hf), and below the fixed hook (5) an upper support (6) fixed to the stanchion body (3) and arranged along the upper edge of the vertical flange (Hf); and a stanchion body (3) below and parallel to the upper support (6). A lower support member (7) fixed to the lower support member (7), a jack screw rod (8) vertically penetrating the upper and lower support members (6, 7) on both sides sandwiching the fixed hook (5), and the lower support member (7 ) below each jack threaded rod (8) and a moving hook (9) which releasably engages the lower edge of the vertical flange (Hf). said two moving hooks (9) are positioned at approximately the same distance from the fixed hook (5),
A detent means (12) for detenting rotation around the jack screw rod (8) while permitting vertical movement of the moving hooks (9) is provided between the lower part of the post body (3) and each moving hook (9). The master rope support according to claim 1, characterized in that it is provided with a. The moving hook (9) includes a hook plate (9b) having a lower engaging portion (9a) that engages with the lower edge of the vertical flange (Hf), and a side surface of the hook plate (9b). A square tubular member (9c) having a square hole in a direction perpendicular to the jack screw rod (8), and a nut member (9d) disposed in the square tubular member (9c) and screwed with the jack screw rod (8). ) is provided, the master rope support according to claim 1 or 2. The strut body (3) is formed of a rectangular tube having a front surface (3a) facing a vertical flange (Hf),
The upper and lower support members (6, 7) are formed of square tubular members (6a, 7a) that are in contact with the front surface (3a) of the column body (3) and in contact with the vertical flange (Hf). The parent rope support according to any one of claims 1 to 3.

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