JP5816536B2 - Master rope support device and slope working method using master rope support device - Google Patents

Description

  The present invention relates to a master rope support device for supporting a master rope used for slope work such as a natural ground, and a slope working method using the master rope support device.

  In a work on a slope such as a natural ground, for example, a mortar spraying work on a slope, a concrete block laying work, a greening work, etc., it is necessary for the worker to work while descending along the slope. For this reason, for example, one end of the master rope is tied to a stand standing on the shoulder of the slope, the other end of the master rope is lowered along the slope, and a safety belt attached to the waist of the operator is attached to the master rope. The operator is engaged so that the operator can work on the slope in a posture suspended from the master rope.

  As this main work method, for example, a method has been proposed in which a lifeline tied to a standing tree on the slope of the slope is lowered to the slope, the worker wears the lifeline so that it can be extended to the body, and moves up and down along the lifeline. (See Patent Document 1). As another example, a lateral movement rope and a traversing winch are installed on the shoulder of the slope, the rope is lowered from the lateral traversing rope to the slope, the worker moves up and down along the rope, and the traversing winch. There has been proposed a method of moving horizontally by operating (see Patent Document 2).

JP 2002-146794 A JP-A-11-36309

  However, according to the above-described conventional work method, the range in which the worker who is working along the slope can move laterally while being suspended on the lifeline is extremely limited, and the work efficiency is poor. It was. In addition, according to the latter work method, it is necessary to install a device such as a rope for lateral movement and a traversing winch, and it is necessary to secure a relatively wide place on the shoulder of the slope, which is necessary for actual installation and operation. Was accompanied by many difficulties.

  The present invention has been made in view of the above circumstances, and can be easily installed on the shoulder portion of the slope, and easily expands the range of lateral movement of the worker on the slope suspended by the master rope. An object of the present invention is to provide a master rope support device capable of improving work efficiency and a slope work method using the master rope support device.

In order to solve the above problems, the present invention is a master rope support device that is installed on the shoulder of the slope of the natural ground and supports the master rope used for the slope work,
Established a fixed post to the shoulder of the slopes, the rotating part is attached to the proximal end of the fixed post, attaching the proximal end of the rotatable movable strut in a predetermined range around the fixed post to the rotating part ,
One end of the master rope is fixedly supported on the shoulder of the slope, and the middle is supported by the upper end of the fixed support and the free end of the movable support, and the other end is hooked to the body of the worker who works on the slope. It is characterized by doing.

The present invention is a master rope support device that is installed on the slope of the natural slope and supports the master rope used for the slope work,
Slope shoulders to set up a fixed post of a shoulder of the slopes established a rotating part in the vicinity of the base end portion of the standing column, rotatable in a predetermined range around the fixed post to the rotating part attaching a proximal end of a movable post,
One end of the master rope is fixedly supported on the shoulder of the slope, and the middle is supported by the upper end of the fixed support and the free end of the movable support, and the other end is hooked to the body of the worker who works on the slope. and,
The fixed column is characterized by being made to stand on the shoulder portion of the slope by a combination of a plurality of column members .

The present invention is a master rope support device that is installed on the slope of the natural slope and supports the master rope used for the slope work,
A fixed tree erected on the shoulder portion of the slope, and a movable support that is rotatably supported around the fixed tree by the fixed tree through the rotating part,
One end of the master rope is fixedly supported on the shoulder of the slope, and the other half is supported by a part of the fixed tree and the free end of the movable support column, and the other end is hung on the body of the worker who works on the slope. The third feature is to stop.

  It is desirable that the rotating portion is formed of a curved member that is attached to the base end portion of the movable support column and is rotatable along the outer surface of the fixed tree.

The present invention is a working method in which a master rope support device is installed on the shoulder of a slope of a natural ground, and the master rope supported by the master rope support device is hooked on the worker's body to perform the slope work. There,
Supporting a movable support column having a rotating part with respect to the fixed tree standing on the shoulder of the slope via the rotating part,
The master rope has one end fixed to and supported by the shoulder of the slope, the middle is supported by a part of the fixed tree and the free end of the movable support column, and the other end is hooked to the operator's body,
A second feature is that the worker performs a slope operation on the slope while rotating the movable support within a predetermined range.

  As described above, according to the master rope support device according to the present invention, the fixed strut and the movable strut are installed on the slope shoulder, the master rope fixes one end to the slope shoulder, and the other end is Since it suffices to be hooked on the worker's body via the upper end of the fixed column and the free end of the movable column, the master rope support device can be easily installed on the shoulder portion of the slope.

  Also, by rotating the movable strut around the fixed strut, rotating part or fixed tree while operating the master rope, the operator on the slope can easily move sideways, and the range that can be moved horizontally is wide, Work efficiency can be improved. In addition, it is possible to reduce the work burden on the worker.

  Furthermore, according to the master rope support device according to the present invention, the master rope is hung on the slope via the fixed support and the movable support installed on the shoulder, so that contact and friction between the master rope and the slope shoulder are reduced. It can be avoided, the damage to the master rope can be prevented, and the slope work can be performed safely.

  Further, according to the slope working method according to the present invention, by using the above-mentioned master rope support device, it is possible to improve the efficiency of the slope work and reduce the work load, and also ensure the safety of the slope work. In addition, it is possible to improve the construction quality of slope work.

The side view which shows the 1st Embodiment of this invention, and shows a mode that the mortar spraying operation | work is carried out on the slope using the master rope support apparatus installed in the shoulder part of the slope. Side view of the main part showing the mounting state of the movable strut and the rotating part in the master rope support device, The front view which shows the installation state of the fixed support | pillar in a master rope support apparatus, The top view which shows the movable range of the movable support | pillar in a master rope support apparatus, The principal part top view which shows the attachment state of the movable support | pillar shown in FIG. 2, and a rotation part, The principal part front view which shows the state which fixed the master rope with the fixing clip to the upper end of a fixed support | pillar, Side view of the main part showing a state where the master rope is fixed to the free end of the movable column with a fixing clip, The side view which shows the 2nd Embodiment of this invention and shows the state which installed the master rope support apparatus in the shoulder part of a slope. Front view showing a state where a fixed support is installed on the shoulder of the slope, The principal part side view which shows the attachment state of the movable support | pillar shown in FIG. 8, and a rotation part, The side view which shows the 3rd Embodiment of this invention, and shows the state which installed the master rope support apparatus in the shoulder part of a slope. It is a principal part top view which shows the support state with respect to the fixed tree of the movable support | pillar shown in FIG.

  Embodiments according to the present invention will be described below with reference to the drawings.

  1 to 7 show a first embodiment according to the present invention. In these figures, reference numeral 100 denotes a master rope support device. Hereinafter, a procedure for spraying mortar on a slope using the master rope support device 100 will be described as an example of the slope work.

  First, as shown in FIG. 1, the master rope support apparatus 100 is installed on the shoulder 2 of the slope 1 of the natural ground. The master rope support device 100 includes a fixed column 110, a rotating unit 120, and a movable column 130.

  As shown in FIGS. 2 and 3, the fixed support 110 includes a single pipe 111 having a predetermined height, and a ground surface of the shoulder 2 by an anchor 114 and two support chains 115 via a floor plate 112 and a scaffold base 113. 2a is erected in a fixed posture. That is, the floor plate 112 is installed on the ground surface 2a of the shoulder portion 2, the scaffold base 113 including the cylinder portion 113a is installed on the upper surface of the floor plate 112, and the anchor 114 is inserted from above the cylinder portion 113a of the scaffold base 113. The lower part of the anchor 114 is inserted into the ground through the through hole 112a of the floor plate 112. Then, the lower end portion of the single pipe pipe 111 is externally fitted to the upper portion of the anchor 114 and is supported by the anchor 114 so that the single pipe pipe 111 is in an upright posture, and one of the two support chains 115 is connected to the single pipe pipe. The other end is fixed to the ground surface 2 a of the shoulder portion 2 with an anchor 116. As shown in FIG. 4, the two support chains 115 extend in directions that are 180 degrees in plan view. Thus, the fixed column 110 is installed in a vertical and fixed posture on the ground surface of the shoulder 2.

  As shown in FIGS. 2 and 5, the rotating unit 120 includes a ring part 121 that is rotatably attached to the cylindrical part 113 a of the scaffold base 113, and a support bracket 122 that is integrally attached to the ring part 121. Has been. The support bracket 122 supports the base end portion 130a of the movable column 130 that can be inverted via a hook portion 123 having a shaft portion 123a inserted into the pin hole 122a. In the rotating part 120, the ring part 121 is attached to the cylindrical part 113 a of the scaffold base 113 before the two support chains 115 are installed on the fixed support 110.

  The movable support 130 is composed of a single pipe 131 having a predetermined length, and as described above, the base end portion 130a can be inverted from the support bracket 122 of the rotating portion 120 via the hook portion 123 having the shaft portion 123a. As shown in FIG. 4, the free end 130 b side of the movable support 130 is supported around the fixed support 110 by a predetermined range (in the illustrated example, from 30 degrees from the center to the left and right). 60 degrees).

  In the master rope support device 100, as shown in FIGS. 6 and 7, a fixing clip 140 for fixing the master rope 10 is attached to the upper end of the fixed strut 110 and the free end of the movable strut 130, respectively. The fixing clip 140 clamps the master rope 10 between the lower fixing member 141 fixed to the upper end of the fixing column 110 and the free end of the movable column 130, and the lower fixing member 141 via the left and right bolt members 142. The upper fixing member 143 is fixed, and a hook portion 144 for hooking one side of the support chain 115 is provided on a part of the upper fixing member 143.

Therefore, before erecting fixed post 110 and fixes the first fixing position _{K 1} of Shintsuna 10 to the upper end of the retaining clip 140 of the fixed post 110. To fix the first fixed position _{K 1} securing clips 140 of lifeline 10, loosen the bolt member 142, through the Shintsuna 10 in the gap of the lower fixing member 141 and the upper fixing member 143, the first fixed the combined position _{K 1,} tighten the bolt 142 to secure the first fixed position _{K 1} of lifeline 10 under the fixed member 141 and the upper fixing member 143.

The retaining clip 140 of the free end of the movable support 130 to fix the second fixing position _{K 2} of Shintsuna 10, in a state where the base end portion 130a of the movable support 130 is supported on the rotating portion 120, the above-mentioned By the way. Second fixed position K ₂ can be arbitrarily set, for example, as the angle of the fixed post 110 and the movable support 130 is 30 degrees, i.e., the angle of the surface 2a and a movable support 130 of the shoulders 2 Is set to a length position such that the angle is 60 degrees.

  As shown in FIG. 1, in the standing posture of the fixed support 110, one end 10 a of the master rope 10 is fixed to the surface 2 a of the shoulder portion 2 by two anchors 117, and the other end 10 b of the master rope 10 is fixed. It hangs along the surface 1.

  In this way, when the master rope support device 100 is installed on the surface of the shoulder portion 2 and the master rope 2 is supported by the master rope support device 100, the master rope 10 hung down on the slope 1 causes the waist of the operator M to move. The safety belt 20 is hooked, and the mortar spraying work is performed by descending from the shoulder 2 to the slope 1 in a posture suspended by the master rope 10.

  By using the master rope support device 100, the operator M is movable by operating the master rope 10 hooked on the safety belt 20 while spraying mortar on the surface of the slope 1 from the tip of the hose 30 he carries. The support column 130 can be rotated (swinged) in one direction around the fixed support column 110 and can be moved laterally along the slope 1 within the movable range of the movable support column 130.

  When reaching the limit of the movable range of the movable strut 130 (see FIG. 4), the master rope 10 is loosened and lowered one step, and then the movable strut 130 is rotated in the opposite direction while the mortar spraying work is movable. This is performed while laterally moving to the other limit of the movable range of the column 130. When the mortar is sprayed to the lower end position of the slope 1 in this way, it rises to the shoulder 2 along the slope 1 while gripping the master rope 10, and the installation position of the master rope support device 100 is next. Change to slope 1 again and continue mortar spraying.

  By using the master rope support device 100, the worker M repeats the horizontal movement and the descent while operating the master rope 10 along the slope 1, and can efficiently perform the mortar spraying work and also improve the construction quality. Can do. Since the mortar spraying work is heavy labor with the hose 30, the point that the work burden can be reduced is very large for the operator.

  8 to 10 show a second embodiment of the present invention. In these drawings, the same members as those in FIG.

  As shown in FIGS. 8 and 9, the master rope support device 100 ′ of this embodiment includes a fixed support 110 ′ composed of a pair of single pipes 111 and 111 whose upper ends are joined to each other by a joint member 118. Thus, each single pipe 111, 111 is inclined at an angle of 45 degrees from each upper end to the ground surface of the shoulder 2 as shown in FIG. That is, the pair of single pipe pipes 111, 111 are independent on the ground surface of the shoulder portion 2 without using a support chain. Three single pipes 111 may be self-supporting.

  Further, as shown in FIG. 8, the movable support 130 is rotated by a rotating part 120 installed in a fixed state by an anchor 114 at the center position of the fixed support 110 ′ (position just below the joint member 118) on the ground surface of the shoulder 2. A predetermined range (60 degrees to 120 degrees) can be rotated around the rotating portion 120, that is, around the center position of the fixed support 110 '. FIG. 10 shows a fixed state of the rotating portion 120 with respect to the ground surface of the shoulder portion 2 and a support state of the movable column 130 with respect to the rotating portion 120. The rotating unit 120 has the same structure as that shown in FIG.

As shown in FIGS. 8 and 9, the master rope 10 is clamped at the intersection of the upper ends of the single pipes 111, 111 of the fixed support 110 ′ or wound around the upper end of the first fixed position K _1. fixed, second fixed position K ₂ are fixed by the fixing clip 140 of the movable support 130 by.

  The master rope support device 100 ′ of the present embodiment can also efficiently perform the mortar spraying operation while alternately repeating the lateral movement and the descent along the slope 1. Moreover, construction quality can also be improved.

  FIG. 11 and FIG. 12 show a third embodiment according to the present invention. In these drawings, the same members as those in FIG.

  As shown in FIG. 11, the master rope support device 100 ″ of this embodiment uses a fixed tree (standing tree) 3 erected on the ground surface of the shoulder portion 2 instead of the fixed column. A movable support 130 ′ is supported so as to be rotatable around the fixed tree 3. That is, in the movable support 130 ′, an arc-shaped rotation support portion (rotation portion) 132 is attached to the proximal end portion of the single pipe 131, and the arc-shaped rotation support portion 132 comes into contact with the outer surface of the fixed tree 3. In the state, it is suspended and supported by the pair of support chains 13 and 13. A protective sheet 5 for preventing contact friction with the rotation support portion 132 is wound around the outer surface of the fixed tree 3. The lower ends of the support chains 13 and 13 are hooked to the hook portions 133 on both sides of the rotation support portion 132, and the upper ends of the support chains 13 and 13 are hooked to the roots of the branches 4 of the fixed tree 3.

  Then, the first fixing position K1 of the master rope 10 is hooked or fixed to the crotch portion of the branch 4 of the fixed tree 3, and the second fixing position K2 is fixed to the free end of the movable column 130 ′ by the fixing clip 140. It is fixed. As a result, the operator who descends to the slope 1 operates the master rope 10 to gradually rotate (swing) the movable support 130 ′ around the fixed tree 3. It is possible to move laterally easily within a movable range of 130 ′.

  Even with the master rope support device 100 ″ of this embodiment, the slope work can be efficiently performed and the construction quality can be improved.

  As described above, by using the master rope support device according to the present invention, the worker suspended on the slope by the master rope performs the slope work in the movable range of the movable support column while laterally moving. And a wide range of lateral movement. Accordingly, the slope work can be efficiently performed and the work load on the worker can be reduced. Furthermore, the construction quality of slope work can be improved.

  In addition, as a slope work that can be performed using the master rope support device of the present invention, in addition to the above-mentioned mortar spraying work, concrete block laying work, lath net laying work, various jig mounting work, greening work, etc. Wide range. The master rope support device is also used for lifting the operator.

  Furthermore, the slope portion of the slope is sufficient if there is a space in which the fixed support and the movable support can be installed, and does not require a wide space. Therefore, the master rope support device can be easily installed.

  The master rope support device according to the present invention uses the master rope support device according to the present invention as the device for supporting the master rope used for the slope work such as a natural ground, and the slope work method according to the present invention uses the master rope support device according to the present invention. It can be used as a working method.

1 slope 2 shoulder 3 standing tree (fixed tree)
4 Branches 5 Protective sheet 10 Master rope 20 Safety belt 100 Master rope support device 110 Fixed strut 111, 131 Single pipe pipe 112 Base plate 113 Scaffold base 114, 116, 117 Anchor 115, 134 Support chain 118 Joint member 120 Rotating part 121 Ring part 122 Support bracket 122a Pin hole 123, 133, 144 Hook part 123a Shaft part 130 Movable strut 130a Base end part 130b Free end 132 Arc member (rotating part)
140 Fixing clip 141 Lower fixing member 142 Bolt member 143 Upper fixing member K ₁ First fixing position K ₂ Second fixing position M Operator

Claims (5)

It is a master rope support device that is installed on the slope of a natural slope and supports the master rope used for slope work,
A fixed strut is installed on the shoulder of the slope , a rotating part is attached to the base end of the fixed strut, and a base part of a movable strut that can be rotated around the fixed strut is attached to the rotating part. And
One end of the master rope is fixedly supported by the shoulder of the slope, the middle is supported by the upper end of the fixed support and the free end of the movable support, and the other end is hung on the body of the worker who works on the slope. Stopped ,
The fixed strut support device, wherein the fixed strut is fixed to the shoulder portion of the slope by a plurality of stretching members stretched between the upper end of the fixed strut and the shoulder portion of the slope . It is a master rope support device that is installed on the slope of a natural slope and supports the master rope used for slope work,
A fixed support is installed on the slope shoulder, a rotating part is installed near the base end of the fixed support on the slope shoulder , and the rotating part can rotate around the fixed support within a specified range The base end of the movable prop is attached,
One end of the master rope is fixedly supported by the shoulder of the slope, the middle is supported by the upper end of the fixed support and the free end of the movable support, and the other end is hung on the body of the worker who works on the slope. Stopped ,
The fixed strut supporting apparatus is characterized in that the fixed strut is self- supported on the slope shoulder by a combination of a plurality of strut members. It is a master rope support device that is installed on the slope of a natural slope and supports the master rope used for slope work,
A fixed tree erected on the shoulder portion of the slope, and a movable support that is rotatably supported around the fixed tree by the fixed tree through the rotating part,
One end of the master rope is fixedly supported by the shoulder of the slope, and the middle is supported by a part of the fixed tree and the free end of the movable support column, while the other end is on the body of the worker who works on the slope. A master rope support device characterized by being hooked. 4. The parent rope support device according to claim 3 , wherein the rotating portion is formed of a curved member attached to the base end portion of the movable support column and rotatable along the outer surface of the fixed tree. A working method for a slope, in which a master rope support device is installed on the shoulder of the slope, and the master rope supported by the master rope support device is hung on the worker's body to perform the slope work,
Supporting a movable support column having a rotating part with respect to the fixed tree standing on the shoulder of the slope via the rotating part,
The master rope has one end fixed to and supported by the shoulder of the slope, the middle is supported by a part of the fixed tree and the free end of the movable support column, and the other end is hooked to the operator's body,
A slope working method using a master rope support device, wherein the operator performs a slope work on a slope while rotating the movable support within a predetermined range.

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