JP7265259B2 - Gate-shaped parent rope support - Google Patents

Description

TECHNICAL FIELD The present invention relates to a gate-shaped main rope support for attaching a main rope, and more particularly to a gate-shaped main rope support suitable for mounting on a wale.

2. Description of the Related Art At a construction site for civil engineering or building construction, a passageway for workers is provided in a structure, and a master rope is attached to the passageway for the safety of the worker. For example, when excavating the ground, earth retention is performed by wale so that the surrounding soil does not collapse. The wales consist of sheet piles, parent piles, retaining plates, etc., and a running passage for waling inspection is attached to the inner surface of the wales. In addition, in building framework construction, a passageway for workers is installed around the framework, which is a structure.

In such a travel passage for workers, a main rope is attached as a handrail member so that the worker can safely travel through the passage.

Patent Document 1 describes a form mounting bracket, which includes a support that is detachably attached to a concrete form for reinforced concrete frame construction, and a main rope that is attached to the upper end of the support. and hook fittings to be locked.

Patent Literature 2 discloses a protective stanchion for use as a mainline stanchion installed on a high scaffold. A clamp member to be clamped by an object to be attached is provided at the lower end of the main rope support, and a ring to which the main rope is engaged is attached to the upper end of the main rope support.

A plurality of each of the main rope supports are attached at predetermined intervals, and a main rope is attached between two adjacent main rope supports.

JP 2014-43678 A JP 2016-199965 A

A conventional main rope post is provided with a hook metal fitting or a ring ring for passing the main rope through at the upper end, and is attached to a formwork or an object to be attached by a clamp member provided at the lower end. As described above, the conventional main rope post consisting of a single post requires the use of a fall prevention rope or the like so that it does not fall down even if the worker pulls the main rope strongly. In particular, the main rope supports placed at both ends of structures such as wales are subject to external force in the direction in which they are knocked down by adjacent main rope supports. It is necessary to clamp it to the object to be attached with , and to firmly fix it with a rope or the like to prevent it from falling over.

Furthermore, when the main rope is stretched around the structure at the construction site, it is necessary to transport a large number of main rope supports from the storage location to the construction site by truck. At this time, if the main rope struts are loaded and unloaded one by one from the truck, the work efficiency is low, so the main rope struts are bundled and unloaded from the truck. However, even if a plurality of main rope struts with a clamp member at one end and a hook at the other end are bundled together, a large number of main rope struts cannot be mounted in the limited space of the truck bed. , could not be transported efficiently.

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to firmly fasten a master rope strut to an object to which it is attached.

Another object of the present invention is to make it possible to stack a large number of main rope struts in a limited space.

The gate-shaped main rope support of the present invention is a gate-shaped main rope support that is attached to an attachment target piece facing the vertical direction in a passage member on which a worker travels, and includes two vertically extending parallel to each other. a support member, a connecting rod member connected to the inner side surfaces of the two support members and forming a portal frame together with the support member, and the mounting target piece provided at the lower ends of the two support members, respectively. At least one of a hook member to which a main rope is attached and a main rope guide to which the main rope is hooked is provided at the upper end of the support member.

The gate-shaped parent rope strut has a gate-shaped frame made up of two strut members and a connecting rod member that connects these strut members with a gap therebetween. A clamping member is provided that is fastened to the mounting target piece of the member. At least one of a hook member and a main rope guide is provided on the upper end of the portal frame, and a main rope rope can be attached to the portal main rope support. Since the clamp members are attached to the lower ends of the two support members, the gate-shaped main rope support is fastened to the mounting target piece of the passage member at two points. As a result, the attachment strength of the gate-shaped parent rope support can be increased. Therefore, it is possible to enhance the safety of the worker who travels through the passage member provided in the structure.

FIG. 4 is a perspective view showing a wale to which H-shaped steel as a passage member is attached; It is a perspective view showing two gate-shaped main rope supports attached to H-shaped steel as a passage member, (A) shows the case where the main rope rope is attached to the hook member, and (B) shows the main rope guide to the main rope guide. It shows the case where the rope is attached. FIG. 3 is an enlarged perspective view of the portal-shaped parent rope strut shown in FIG. 2 ; 4 is a side view of FIG. 3; FIG. It is a perspective view which shows the state which reversed both ends and butt|matched two gate-shaped parent rope support|pillars by the back side. (A) is a side view showing a state in which both ends are reversed and two gate-shaped main rope supports are opposed on the back side, and (B) is a state in which the two gate-shaped main rope supports are shown in (A). (C) is a right side view of (B). (A) is a perspective view of FIG. 5 viewed from the rear right, (B) is a side view of (A) viewed from the direction of arrow 7B, and (C) is a right side view of (B). It is a perspective view which shows the state which piled up four gate-shaped master rope supports. (A) is a side view seen from the direction of arrow 9A in FIG. 8, and (B) is a left side view of (A).

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a state in which the earth is retained by a wall made up of wales 1 so that the surrounding soil does not collapse when the ground is excavated. A wale 1 shown in FIG. 1 has main piles 2 made of H-shaped steel, and the main piles 2 are vertically driven into the ground at predetermined intervals. A horizontal retaining plate 3 is arranged between the main piles 2, and earth and sand 4 around the back side of the wale 1 are earth-retained by the wale 1. - 特許庁A passage member 5 made of H-shaped steel is attached to the wale 1 so as to extend horizontally. In FIG. 1, two passage members 5 are attached to the inner side of the wale 1 with a vertical gap therebetween. can be done.

The H-shaped steel forming the passage member 5 has a strip-shaped web 6 and two flanges 7 and 8 integrated on both sides of the web 6, as shown in FIG. Extending horizontally, the operator can run over the web 6 . The respective flanges 7 and 8 face in the vertical direction, the flange 7 on the rear side is attached to the wale 1, and the flange 8 on the front side, that is, the inner surface side forms a piece to be attached.

As shown in FIG. 2, a gate-shaped main rope support 10 is attached to the flange 8 as a mounting target piece of the passage member 5 . As shown in FIGS. 3 and 4, the gate-shaped main rope strut 10 has two strut members 11 extending vertically in parallel with each other. Each strut member 11 is a hollow pipe with a rectangular cross section. The two strut members 11 are connected by two connecting rods 12 and 13 with a space therebetween. The connecting rod member 12 is connected to one end of the support member 11, ie, the inner surface of the upper end portion in FIG. The connecting rods 12 and 13 are hollow pipes with a circular cross section. Any number of connecting rods can be used to connect the strut members 11 and 12 .

In this manner, the two strut members 11 and the two connecting rod members 12 and 13 form the portal frame 14 . The connecting rod members 12 and 13 form a space between the two support members 11 through which an operator can pass. Thereby, the worker can climb up and down along the portal pillar 10 along between the two pillar members 11. - 特許庁

A clamp member 15 is provided at the other end, ie, the lower end, of each of the support members 11, and the two support members 11 are fastened to the flange 8, ie, the piece to be attached by the clamp members 15, respectively.

When the portal pillar 10 is attached to the passage member 5 , the pillar member 11 extends vertically, and the lower end of the pillar member 11 is fastened to the flange 8 by the clamp member 15 . With the gate-shaped main rope support 10 attached to the passage member 5, as shown in FIG. The front side is defined as the front side, and the opposite side, that is, the other side facing the wale 1 is defined as the back side. In this specification, with respect to the gate-shaped main rope support 10 and the gate-shaped frame 14, the front side 14a is the right side in FIG. , the other side on the left side is the rear side 14b, the end of the support member 11 to which the clamp member 15 is attached is the lower end, and the opposite end is the upper end.

Each clamp member 15 has an attachment portion 16 that protrudes and is fixed to the outer surface of the support member 11, and a fastening portion 17 that protrudes from the back side of the support member 11 integrally with the attachment portion 16. A screw member 18 is provided in the fastening portion 17 . A gap 19 into which the flange 8 is inserted is formed between the mounting portion 16 and the fastening portion 17, as shown in FIG. The screw member 18 fastens the flange 8 as a piece to be attached that has entered the gap 19 between the attachment portion 16 and the attachment portion 16 . The rear surface of the fastening portion 17 is substantially flush with the rear surface side 14 b of the support member 11 , and when the clamp member 15 is fastened to the flange 8 , the mounting portion 16 is brought into contact with the flange 8 and the support member 11 is moved. The rear side 14b of the lower end contacts the flange 8. As shown in FIG. The screw member 18 is positioned inside the flange 8 as shown in FIGS. 2 and 4 when the clamp member 15 is fastened to the flange 8 .

As shown in FIG. 2 , the fastening portion 17 protrudes from the rear side of the portal frame 14 . That is, in FIG. 4 , when the portal frame 10 is attached to the passage member 5 by reversing left and right, the portal frame 14 is arranged inside the flange 8 . Therefore, one side 14a on the right side of the portal frame 14 in FIG. 4 is the rear side, and the other side 14b on the left side is the front side. However, as shown in FIG. 4, arranging the portal frame 14 outside the flange 8 can expand the passage space for the operator.

A hook member 21 for attaching a main rope 20 is provided at the upper end of each strut member 11, as shown in FIG. The hook member 21 is formed of a loop-shaped metal fitting, protrudes laterally outward from the support member 11 and attached to the outer surface of the support member 11, and has a closed rope attachment hole. As shown in FIG. 2(A), a master rope 20 having both ends attached to hook members 21 is stretched between two gate-shaped master rope supports 10 adjacent to each other with a space therebetween. The worker can safely run on the passage member 5 by hooking the safety fitting attached to the worker's waist belt to the main rope 20.例文帳に追加

As shown in FIG. 1, a large number of gate-shaped master rope struts 10 are attached to the passage member 5 provided on the wale 1 at predetermined intervals as shown in FIG. When the main rope rope 20 is stretched between the adjacent gate-shaped main rope supports 10, the worker can safely run on the passage member 5. - 特許庁Moreover, the gantry main rope strut 10 has two strut members 11, and each of the strut members 11 is fastened to the H-shaped steel flange 8 as a piece to be attached by the clamp member 15. The post 10 is firmly fastened to the flange 8, and even if the main rope rope 20 is pulled with a strong force, the upper end of the gate-shaped main rope post 10 is tilted in the direction along the passage member 5 or away from the wale 1. There is no

Two strut members 11 of the gate-shaped main rope strut 10 are fastened to the flange 8 by clamp members 15, respectively, and connecting rod members 12 and 13 are arranged between the two strut members 11 so that an operator can pass through. Since the two clamp members 15 are separated by an interval corresponding to the length, it is possible to prevent the support member 11 from inclining without fastening the clamp members 15 excessively strongly. . It is not necessary to fasten the clamp member 15 excessively, and the installation work of the gate-shaped main rope support 10 can be easily performed.

A main rope guide 22 is protruded from the upper end surface of the support member 11, and a main rope 20a is hooked on the main rope guide 22, as shown in FIG. 2(B). As shown in FIG. 3, the main rope guide 22 is provided on the upper end surface of each strut member 11 and has an inner guide member 23 and an outer guide member 24 . The inner guide member 23 of the main rope guide 22 on the left side in FIG. A horizontal opening 26 is provided.

On the other hand, the inner guide member 23 of the main rope guide 22 on the right side in FIG. A horizontal opening 25 is provided in the rear side 14b. As shown in FIG. 4, when observing the gate-shaped main rope support 10 from the left and right sides so that the two support members 11 overlap, the opening 25 of the inner guide member 23 and the opening 26 of the outer guide member 24 are shown. overlaps with As a result, a through hole 27 through which the main rope 20a passes is formed by both openings, and the main rope 20a is prevented from coming off the through hole. Moreover, by making the main rope 20a meander, the main rope 20a can be easily hooked to each main rope guide 22 from the opening.

The inner guide member 23 and the outer guide member 24 that constitute the master rope guide 22 are each provided with a horizontal opening, but the opening 25 of the inner guide member 23 that constitutes the master rope guide 22 is gate-shaped. When the frame 14 is open on the back side, the opening 26 of the outer guide member 24 is opened on the front side. In other words, the inner guide member 23 and the outer guide member 24 that constitute the pair of master rope guides 22 have the opening sides of the openings opposite to each other. As a result, a through hole 27 is formed by both openings through which the main rope 20a passes. Although the main rope guides 22 are provided at the upper ends of the two support members 11 respectively, the main rope guide 22 may be provided only on one of the support members 11 . In other words, it suffices if the portal frame 14 is provided with one master rope guide 22 .

As described above, when the hook member 21 and the main rope guide 22 are provided on the gate-shaped main rope support 10, depending on the location where the gate-shaped main rope support 10 is attached, the hook can be arranged as shown in FIG. The portal pillar 10 is used in both the type of attaching the main rope 20 to the member 21 and the type of hooking the main rope 20a to the main rope guide 22 as shown in FIG. 2(B). be able to. Furthermore, both master ropes 20, 20a can be attached.

However, the gate-shaped main rope support 10 provided with the hook member 21 and not provided with the main rope guide 22 may be used, and the main rope guide 22 is provided but the hook member 21 is not provided. It is good as That is, at least one of the hook member 21 and the main rope guide 22 should be provided on the portal frame 14 .

As shown in FIG. 2, when a plurality of gate-shaped main rope supports 10 are attached to the passage member 5 at predetermined intervals, the main rope can be attached between the gate-shaped main rope supports 10, and the operator can can safely run on the passage member 5. As shown in FIG. 1, when a plurality of passage members 5 are attached to the wale 1 at intervals, the operator climbs between the upper passage member 5 and the lower passage member 5. I may get off. At that time, a ladder is attached to the passage member 5 so as to be positioned between the two support members 11.例文帳に追加A worker can easily get over the portal pillar 10 by straddling the connecting rod 12 along the ladder. By using this gate-shaped main rope strut 10, it is possible to improve the workability of a worker who travels on a passage member. Furthermore, the gate-shaped master rope support 10 can be used to increase the safety when the operator moves up and down between the upper and lower passage members 5. - 特許庁

As shown in FIG. 5, by reversing both ends, the two gate-shaped main rope supports 10 can be stacked back to back, that is, in a state where the rear sides 14b are butted against each other. In the illustrated gate-shaped main rope strut 10, the fastening portion 17 of the clamp member 15 protrudes to the back side 14b, and the back side serves as a protruding surface. As shown in FIG. 5, in order to stack two gate-shaped main rope supports 10, as shown in FIG. Both ends of the portal pillar 10 are reversed. That is, in FIG. 6A, the clamp member 15 of the lower gate-shaped main rope support 10 placed on the support base 30 and the hook member 21 of the upper gate-shaped main rope support 10 are on the left side in FIG. , so that the hook member 21 of the lower gate-shaped main rope support 10 and the clamp member 15 of the upper gate-shaped main rope support 10 are on the right side in FIG. is reversed.

Under this condition, as shown in FIG. 6(B), when the two gate-shaped main rope struts 10 are stacked on the support base 30, each hook member 21 is attached to the other gate-shaped master rope strut. It is arranged so as to face the ten clamping members 15 on the inner side in the longitudinal direction. That is, the fastening portion 17 of the clamp member 15 protrudes from the protruding surface of the portal frame 14 , that is, to the rear side 14 b side, so that the two hook members 21 are arranged between the two clamp members 15 . Therefore, the two gate-shaped master rope struts 10 are prevented from being displaced significantly in the longitudinal direction, that is, in the left-right direction in FIG. 6(B). For example, in FIG. 6B, when the upper gate-shaped main rope support 10 shifts to the left with respect to the lower gate-shaped main rope support 10, the clamp member 15 comes into contact with the hook member 21 to prevent the shift. be done.

Furthermore, as shown in FIG. 6(B), when two gate-shaped master rope struts 10 are stacked, each master rope guide 22 faces the inner surface of the clamp member 15 . Therefore, the two gate-shaped master rope struts 10 are prevented from moving in the lateral direction, that is, in the left-right direction in FIG. 6(C).

7A is a perspective view of FIG. 5 viewed from the rear right, FIG. 7B is a side view of FIG. 7A viewed from the direction of arrow 7B, and FIG. It is a right side view of (B). Also in these figures, the two stacked gate-shaped main rope struts 10 have two hook members 21 arranged between two clamp members 15, so that they extend in the longitudinal direction, that is, in the left-right direction in FIG. 7(B). A large shift is prevented. Furthermore, since each master rope guide 22 faces the inner surface of the clamp member 15, the two gate-shaped master rope struts 10 are prevented from shifting laterally, that is, in the left-right direction in FIG. 7(C). be.

In this way, the two gantry pillars 10 can be stacked with the gantry frames 14 in contact without the clamp member 15, the hook member 21 and the gantry guide 22 becoming an obstacle.

As described above, stacking two pairs of back-to-back gantry stanchions 10 makes a stack of four gantry stanchions 10 as shown in FIG. FIG. 8 shows a state in which two pairs of two gate-shaped parent rope struts 10 are stacked when viewed from the direction shown in FIG. 7(A).

As shown in FIG. 7, the pair of main rope supports 31 is composed of two gate-shaped main rope supports 10 that are placed back to back. 31a, and the upper pair of main rope stanchions placed on the support base 30 is indicated as 31b.

Each clamp member 15 is attached to the outer surface of the strut member 11, and the master rope guide 22 does not protrude from the outer surface and the inner surface of the strut member 11. 31b can be shifted in the width direction and stacked. At that time, as shown in FIG. 9A, the front side 14a of the upper main rope support pair 31b faces the front side 14a of the lower main rope support support pair 31a. Furthermore, as shown in FIG. 9(C), the upper main rope support pair 31b is stacked on the lower main rope support support pair 31a while being shifted in the width direction.

The outer diameter of the connecting rods 12, 13 is smaller than the width dimension of the strut member 11 in the longitudinal direction, and a step 29 is formed between the connecting rods 12, 13 and the strut member 11 as shown in FIG. Since it is formed, the lower main rope support pair 31a and the upper main rope support support pair 31b are prevented from shifting in the width direction. As shown in FIG. 8, the pairs of main rope supports 31 formed by two gate-shaped main rope supports 10 can be stacked in an arbitrary number of stages.

Therefore, a large number of gate-shaped main rope struts 10 can be horizontally stacked in multiple stages without generating a wasteful space, so that the number of gate-shaped main rope struts 10 can be stacked in a limited state. Can be stored in space. Furthermore, a large number of gate-shaped main rope struts 10 can be stacked and efficiently transported by truck from a storage place to a construction site.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, although the above-described gate-shaped main rope strut 10 is attached to the passage member 5 attached to the wale 1, it is not limited to this. A passageway member installed at a construction site for civil engineering or construction work, where a piece to be attached is provided in the vertical direction, and where a main rope is provided, a gate-shaped main rope A strut 10 can be applied.

10 Gate-shaped master rope strut 11 Strut member 12, 13 Connecting rod 14 Gate-shaped frame 15 Clamp member 16 Mounting part 17 Fastening part 18 Screw member 19 Gap 20, 20a Master rope rope 21 Hook member 22 Master rope guide 23 Inner guide member 24 Outer guide member 27 Through hole 29 Step 31 Master rope post pair

Claims (8)

A gate-shaped main rope strut attached to a mounting target piece facing the vertical direction in a passage member on which a worker travels,
two strut members extending vertically in parallel to each other;
a connecting rod that is connected to the inner surfaces of the two support members and forms a portal frame together with the support members;
a clamp member provided at each lower end of each of the two support members and fastened to the attachment target piece;
A gate-shaped main rope strut, wherein at least one of a hook member to which a main rope is attached and a main rope guide to which the main rope is hooked is provided at the upper end of the strut member. In the gate-shaped parent rope support according to claim 1,
The clamp member includes a mounting portion that protrudes and is fixed to the outer surface of the strut member, a fastening portion that is provided integrally with the mounting portion and protrudes from the rear side or the front side of the strut member, and the fastening portion. and a screw member that is provided and fastens the piece to be attached to the attachment portion. In the gate-shaped parent rope support according to claim 1 or 2,
The hook member is a gate-shaped main rope strut that protrudes laterally from the two strut members and is attached to the outer surface of the strut member. In the gate-shaped parent rope support according to any one of claims 1 to 3,
The main rope guide has an inner guide member provided with a horizontal opening on the front side or the back side of the gate-shaped frame, and a horizontal opening on the side opposite to the inner guide member. and an outer guide member, wherein the inner guide member and the outer guide member form a through hole through which a main rope rope passes. In the gate-shaped parent rope support according to any one of claims 1 to 4,
The connecting rod is a gate-shaped main rope strut that forms an interval between the two strut members that allows a worker to pass through. In the gate-shaped parent rope support according to any one of claims 1 to 5,
Each of the two strut members is a hollow pipe with a square cross section, and each of the connecting rod members is a hollow pipe with a circular cross section. In the gate-shaped parent rope support according to any one of claims 1 to 6,
Each hook member is arranged between the clamp members of the two gate-shaped master rope struts when the two gate-shaped master rope struts are butted against the gate-shaped frame with both ends facing in opposite directions. parental stanchion. In the gate-shaped parent rope support according to any one of claims 1 to 6,
A gate-shaped main rope strut, wherein when the two gate-shaped main rope struts are butted against each other with the gate-shaped frame with opposite ends, each main rope guide is arranged on the inner surface of the clamp member.

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