JP2008110128A - Maintenance support device and maintenance method of construction using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a maintenance support device which is simple but excellent in workability and a maintenance method of construction using the same. <P>SOLUTION: The device is provided with: a full-harness type safety belt 100 which disperses support points for supporting a worker by comprising a thigh fixing part 300 for fixing a thigh part of the worker removably integrally with a chair part C for supporting a hip part of the worker and an upper body fixing part 200 for supporting the upper body of the worker to fix it removably; a rope 400 for hanging and pulling the safety belt 100; a power winch 500 for winding up and out the rope 400; a running vehicle 600 for supporting the power winch 500 to a high place (a horizontal member 605) of a construction 604 so that it can move horizontally; and an operation part 508 for allowing the worker to operate the power winch 500 by hand. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a maintenance work auxiliary device for performing maintenance work on a structure such as a power transmission tower and a maintenance method for a structure using the maintenance work assisting device.

  Structures such as power transmission towers are regularly painted for the purpose of rust prevention and environmental beautification. Here, the painting work on the 500 kv class steel tower is a very difficult work because the main material interval in the power transmission tower is wide and the painting of the abdomen is very difficult.

  Conventionally, the painting work in such a place is often performed by installing an appropriate scaffold, and there are cases where the work is carried out by riding on a steel tower member.

Examples of such a scaffold include a swing device devised by diverting a mountain climbing tool (also applied for building cleaning), and a lightweight aluminum ladder or wire ladder fixed to a steel tower member. Moreover, the assembly scaffold which assembled the assembly scaffold which consists of a log, a steel pipe pipe, a bidie scaffold (this scaffold), etc. from the ground is illustrated. Furthermore, suspension scaffolds (gondola scaffolds) such as box-shaped or cylindrical gondola are exemplified (for example, refer to Patent Documents 1 and 2).
Japanese Patent Publication No. 8-33076 JP 2002-38709 A

  However, the work of riding on steel tower members and the use of scaffolding equipment such as swing devices and aluminum ladders, in addition to the problem of requiring the skill of the operator, the work range is narrow, and for maintenance work such as painting There is a problem that it takes a lot of time.

  On the other hand, the maintenance method using the assembly scaffold may be less skilled than the maintenance method such as riding on a steel tower member and the construction time can be shortened. There are cases where it is difficult to assemble the scaffolding in a narrow site, such as when it is built on a narrow site. Moreover, there is a problem that a great deal of labor and days are required for the construction and dismantling of the scaffold.

  On the other hand, when using a gondola, although the gondola can be lifted and lowered, it has the advantage of good workability, but the device becomes large and the weight of the gondola device itself increases and the gondola device is There is a problem that it can be applied only to maintenance work of a steel tower adapted to the shape and size.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a maintenance work assisting device having excellent workability while being a simple device, and a maintenance method for a structure using the same.

  The inventors fixed the worker on the chair-type full harness safety belt, supported the traveling vehicle on a horizontal member at a high position of the structure, and placed the worker on the chair-type full harness by a winch suspended from the traveling vehicle. If it is configured to be lifted by the harness safety belt, the operator can move up and down by the winch. Further, if the winch is moved horizontally by the traveling vehicle by the operator moving in the horizontal direction by himself / herself, the worker can move up / down / left / right in a suspended state. Therefore, according to such an auxiliary device, the worker can move in the horizontal and oblique directions, the work range is widened, and the maintenance method using the riding work and mountain climbing tools while being a simple device. As a result, the present inventors have found that the working efficiency can be increased 3 to 4 times as compared with the present invention.

  That is, the maintenance work assisting device of the present invention includes a thigh fixing part that removably fixes the operator's thighs together with a chair part that supports the worker's buttocks, and an upper torso of the worker. A full harness type safety belt that supports the worker by dispersing the support points by including at least an upper body fixing portion that supports and removably fixes, and hangs down the safety belt A tow rope, an electric winch that winds up and rewinds the rope, a traveling vehicle that supports the electric winch at a height of the structure so as to be movable in the horizontal direction, and the electric winch is operated by the operator. And an operation unit for performing the operation.

  Moreover, the maintenance method of the structure of the present invention uses the above-described maintenance work assisting device to hang down the worker fixed to the safety belt along the structure with the rope, and by operating the operation unit. The operator is moved up and down along the structure by operating the electric winch to wind or unwind the rope, and the operator is moved along the structure by moving the electric winch horizontally by the traveling vehicle. During the horizontal movement, the worker performs a maintenance work on the structure.

  Here, the safety belt may be a single body or a separate body belt used for fixing work tools and the like. When the trunk belt is integrated, the trunk belt may or may not be one of the dispersion support points that support the worker.

  The holding device for holding the work tool may be a torso belt or a shoulder type holding device having a configuration different from that of the safety belt.

  The operation unit is connected by wire, but may be operable wirelessly.

  The traveling vehicle may be any vehicle that can freely travel using a horizontal member located at a high position of a structure such as a steel tower with a load of about 100 kg suspended. As a result, if the worker moves horizontally using a limb or the like to a nearby structural member in a state where it is suspended from the traveling vehicle, it can move horizontally with the traveling vehicle within a range in which the horizontal member extends horizontally.

  According to the present invention, it is possible to provide a maintenance work auxiliary device having excellent workability and a maintenance method for a structure using the same, although it is a simple device.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings, taking a power transmission tower as a structure as an example.

  First, as shown in FIG. 1, a maintenance work assisting device according to the present invention is a full harness type safety belt 100 that is suspended so that an operator can work, a rope 400 that hangs down the safety belt 100, An electric winch 500 that winds and unwinds the rope 400 and a traveling vehicle 600 that supports the electric winch 500 on a horizontal member 605 at a high position of the power transmission tower 604 so as to be movable in the horizontal direction are provided.

  The traveling vehicle 600 is an assembly type, and includes a pulley unit 601 that can freely travel in a horizontal direction while being assembled and mounted on a horizontal member such as a steel pipe, and a hook unit 602 that suspends the electric winch 500. In FIG. 1, the traveling vehicle 600 is assembled and mounted on a horizontal member 605 positioned at a high position of the power transmission tower 604, and a rope 603 for hanging the electric winch 500 is fixed to the hook portion 602.

  As shown in FIG. 2, the electric winch 500 is generally configured by a winding unit 502 that is housed in a case body 501 and includes a winding drum (not shown) that winds the rope 400, and a driving unit 503 such as an electric motor. Has been. An appropriate gear mechanism, clutch mechanism, or the like is interposed between the drive unit 503 and the winding drum. An example of the configuration of such an electric winch 500 is formed, for example, by changing the drive unit of the lifting device described in JP-A-2005-132624 to an electric type.

  Three engaging portions 504 are provided above the case main body 501, and ropes 603 suspended from the traveling vehicle 600 are engaged with these engaging portions 504. Further, as shown in FIG. 3, the case lower surface 505 of the winding portion 502 is provided with an outlet portion 506 of the rope 400 wound around a large-diameter winding drum (not shown), and around the outlet portion 506. Is attached with a ring 507 formed by a round bar of φ8. Thereby, the exit part 506 can prevent damage to the rope 400 even if the rope 400 sways by being formed in a circular shape in plan view with an exit diameter of 40 mm, for example.

  Here, the winding unit 502 may be a well-known winch winding unit. However, for example, if the structure is such that when the rope is stopped, the friction is applied to stop the safety, the safety is further improved. Such a structure is described in detail in Japanese Patent Application Laid-Open No. 2005-132624. According to the lifting device described in this publication, when winding the rope, the pawls of the driving side clutch and the driven side clutch are engaged and the winding is stopped.

  The drive unit 503 incorporates an electric motor, and this electric motor is configured to be operable by the operator. In this embodiment, the operation section 508 of the electric motor is extended by a connection line 509, and can be operated by a two-point operation of up and down (up) and rewind (down) at the operator's hand. Note that the operation unit 508 in this example is connected by a wired connection via a connection line 509, but the operation unit 508 may be provided without using a wired connection.

  If a high-strength fiber such as aramid fiber is used as the rope 400, an electric winch with a maximum suspension load of 100 kg, a lifting height of 30 m, a power consumption of AC-100 v150 w, and a lifting speed of about 7 m / min can be obtained by setting the diameter of the rope 400 to φ5.4 mm. The total weight can be designed to be about 23 kg, and the operator can climb the tower by himself with an electric winch.

  As shown in FIG. 1, a safety belt 100 that can suspend an operator from the rope 400 in a state where maintenance can be easily performed is detachably attached to the tip 401 of the rope 400 via the carabiner 16 or the like.

  As shown in FIG. 4, the safety belt 100 includes an upper torso fixing unit 200 that supports the upper torso (chest) of the worker and removably fixes the thigh of the operator, and thigh fixing to removably fix the operator's thigh. Part 300 and suspension belt part E are included.

  The upper torso fixing part 200 is generally composed of a shoulder belt part A, an auxiliary belt part B, a torso belt part D, and a chest belt part F.

  The auxiliary belt portion B includes a waist pad 6 used for a column safety belt, the waist pad 6 is fixed inside the auxiliary belt portion B, and a belt presser 23 is provided outside the auxiliary belt portion B. Yes. A belt belt 25 of the body belt portion D is inserted into the belt presser 23, and a belt loop 25, a square ring 21, and a D ring 22 are fixed to the body belt 4. When the torso belt 4 is tightened and fixed by passing the torso belt buckle 24 fixed to one end of the torso belt 4 through the end fitting 26 at the other end, the operator's torso becomes the auxiliary belt part B and the torso belt part D. It is fixed by.

  The shoulder belt portion A includes the shoulder belt 1, and one end of the shoulder belt 1 is fixed to the inner side of the waist pad 6 of the auxiliary belt portion B by sewing or the like. The shoulder belt 1 intersects at the operator's back position, and a D-ring 14 is fixed to the back-crossing position by a D-ring stopper 15. The front end of the shoulder belt 1 is folded back and fixed to a connecting band fixed by sewing or the like from the inside of the waist pad 6 of the auxiliary belt portion B via a length adjusting bracket 12, and the end of the belt is passed through a belt loop 13. Is inserted. Thereby, the operator can hang this shoulder belt 1 on both shoulders.

  The shoulder belt 1 is provided with a chest belt portion F corresponding to a portion located on the chest with the operator passing through both shoulders. The chest belt portion F is composed of a chest belt 17 and tape buckles 18, 19 and the like, and while adjusting the length of the chest belt 17, a male tip is attached to the tape buckle 18 at the tip of the chest belt 17 at the chest of the operator. By engaging the metal fitting 18 ', the chest can be firmly fixed with one touch.

  At positions corresponding to both sides of the operator of the auxiliary belt portion B, the connecting band 41 is fixed by sewing or the like orthogonal to each other. Bus-through buckle bodies 10 and 10 are fixed to both ends of the connection band 41, respectively.

  As shown in FIGS. 4 and 5, the thigh fixing portion 300 includes a buttocks belt 2 and a chair portion C fixed to the insertion slide plate 11 having a length adjusting mechanism. The chair portion C is configured such that a resin seat plate 9 is housed inside the hip belt 2 by sewing or the like, and the hip pad 7 is laminated on the seat plate 9 and fixed.

  A resin thigh pad 8 for supporting the left and right thighs from the inner crotch is provided on the buttocks pad 7. One piece 3A of the thigh belt 3 is fixed to the thigh pad 8, and the other piece 3B of the thigh belt 3 is fixed to the hip belt 2. A bus-through buckle body 10 is provided at the tip of the thigh belt 3B, and an insertion slide plate 11 is provided at the tip of the thigh belt 3A. The insertion slide plate 11 also serves as a length adjusting bracket, and the folded piece of the thigh belt 3 </ b> B is held by the belt loop 13. The thigh belt 3 (3A, 3B) having the length adjusted thereby firmly fixes the thigh together with the seat plate 9.

  The suspension belt portion E is composed of a pair of suspension belts 5 bound at one end to be fixed by the carabiner 16, and the end of the suspension belt 5 is folded and fixed to an insertion slide plate 11 having a length adjusting mechanism. After that, the folded end is fixed by the belt loop 13.

Next, the operation of the maintenance work assisting device configured as described above will be described.
[preparation work]
The operator climbs the power transmission tower 604 with necessary tools and devices on the back and sets the traveling vehicle 600 on the horizontal member 605 at an appropriate high position. The electric winch 500 is suspended from the hook portion 602 of the traveling vehicle 600 via the rope 603. As a power source (not shown) of the electric winch 500, for example, it is connected to a mobile power generator.

  In addition, the worker fixes the fall prevention vertical rope 700 at an appropriate position in order to prevent the fall during the ascent / descent. The fall prevention vertical rope 700 includes, for example, a lolip main body 701 and a steady rest 702 that prevent a fall during a fixed position operation by switching a lever, and the operator appropriately selects from the lolip main body 701 via a shock above sober 703. It can be fixed to the position by a hook or the like.

  Next, on the ground, the operator passes both arms through the shoulder belt portion A, and fixes the upper trunk with the tape buckle of the chest belt portion F. In addition, the belt end bracket 26 is passed through a waist belt buckle to fix the body belt portion B to the body portion, and the upper body fixing portion 200 is attached.

  In addition, the operator fixes the thigh fixing portion 300 with the thigh belt 3 in a state where the buttocks pad 7 is pressed against the rear thigh.

  The connection between the upper torso fixing part 200 and the thigh fixing part 300 can be made integral by inserting the insertion slide plate 11 into the bus through buckle body 11. In a state where the slide plate 11 is not inserted into the bus-through buckle body 11 (a state where the upper torso fixing part 200 and the thigh fixing part 300 are not integrated), the operator wears the upper torso fixing part 200 and the thigh fixing part 300. It can move freely to the extent that it can climb on a steel tower. Thereby, the worker can freely perform the preparation work, the moving work on the steel tower, and the like with the upper torso fixing part 200 and the thigh fixing part 300 attached.

Next, the operator carries work tools necessary for work using the belt 4 or the like. Of course, the work tool may be carried on the back. The carabiner 16 is attached to the end of the rope 400, and the upper body fixing part 200 and the suspension belt part E are integrated by inserting the insertion slide plate 11 at various places into the bus-through buckle body 11, and the upper body fixing part 200 and the thigh are fixed. The unit 300 is integrated. Thereby, the operator can be pulled by the winch, and can be moved in the vertical direction within the range of the lift of the electric winch 500 by operating the hand operation unit 508.
[Main work]
The operator can ascend along the transmission tower 604 by operating the electric winch 500 by operating the operation unit 508 and winding up the rope 400. Further, the operator can move down along the power transmission tower 604 by operating the electric winch 500 by operating the operation unit 508 and rewinding the rope 400.

  According to the maintenance work assisting device according to the present invention, since the hip pad 7 that is wide and is used for the chair portion C is employed, it is tightened as compared with the belt-like hip belt. Maintenance can be performed for a long time without any problems. In addition, according to the above-described maintenance work assisting device, since the ridge portion C is fixed by the thigh belt 3, the operator sits on the sheath portion C having excellent shape retention, such as a swing. Workability can be performed with peace of mind in a state where the thigh belt 3 is suspended without being slipped off or detached from the chair portion C by the action of the thigh belt 3.

  Further, according to the maintenance work assisting device according to the present invention, the load on the operator's chair part C is transmitted to the suspension belt part C via the pair of left and right connecting bands 41, so that the fulcrum of the suspension position is being worked on. There are two places on the body belt portion D so that a balance can be easily obtained, and the operator is well balanced in the suspended state, and the workability is good.

  In addition, since the electric winch 500 is disposed so as to be freely horizontally movable by the horizontal member 605, the operator can hold each member of the nearby power transmission tower 604 by hand or operate it with his / her foot in the horizontal direction. By moving, the position of the electric winch 500 can be moved horizontally.

  Thereby, by combining the raising and lowering by the electric winch 500 and the horizontal movement of the traveling vehicle 600, the worker can freely move up and down and right and left by his / her own intention in a suspended state. Therefore, if such an auxiliary device is used, the operator can freely move over a wide range in the lateral and oblique directions.

  Furthermore, according to the maintenance work assisting apparatus according to the present invention, the trunk belt portion D employs the trunk / auxiliary belt for the pole safety belt, so that the work can be performed on the tower.

  Further, according to the maintenance work assisting device according to the present invention, since the metal fittings capable of detaching the upper torso fixing part 200 and the thigh fixing part 300 are adopted, the operator can use the slide plate 11 and the bus through buckle main body 11. The upper torso fixing part 200 and the thigh fixing part 300 can be separated from each other by releasing the engagement with the one-touch, thereby ensuring the freedom of action on the steel tower.

  Therefore, by applying the maintenance work auxiliary device according to the present invention and the maintenance method of the structure using the same to maintenance work including painting work of the transmission tower where the main material interval is wide and it is difficult to paint the belly material. The work efficiency can be increased by 3 to 4 times compared to the maintenance method using bare riding work and climbing tools.

  Thereby, according to this invention, although it is a simple apparatus, the maintenance work auxiliary | assistance apparatus excellent in workability | operativity and the maintenance method of a structure using the same can be provided.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change or the like without departing from the gist of the present invention. included.

  For example, in the above description, the present invention has been described using a power transmission tower as a structure. However, the maintenance work auxiliary device and the method using the same according to the present invention can be applied to structures other than the power transmission tower. As such a structure, a building such as a high-rise apartment is exemplified, and maintenance work according to the present invention is applied to a maintenance method such as maintenance management of a high-rise apartment that is difficult to maintain using a gondola etc. because there are many corners in the corner. The auxiliary device can be suitably applied.

  In the above structure, the horizontal member is not limited to a member attached to the structure such as a power transmission tower, and may be a structure that can be fixed by mounting the horizontal member as necessary. As a result, maintenance such as painting, repairing, and inspection of a substantially vertical part member of the structure can be performed.

It is a figure explaining the outline | summary of the maintenance work assistance apparatus which concerns on this invention. It is a perspective view explaining the outline | summary of the electric winch of FIG. It is a fragmentary perspective view explaining the exit part of the winding-up part lower surface of FIG. It is a rear view explaining the safety belt | band | zone of FIG. 1, and the chair part is explaining the internal structure. It is a perspective view explaining the detail of the thigh fixing | fixed part of the safety belt | band | zone of FIG.

Explanation of symbols

1: shoulder belt 2: buttocks belt 3: thigh belt 4: torso belt 5: suspension belt 6: waist pad 7: buttocks pad 8: thigh pad 9: seat plate 10: bath through buckle body 11: insertion slide plate 12: long Adjustable metal fitting 13: Belt loop 14: D ring 15: D ring stopper 16: Carabiner 17: Chest belt 18: Tape buckle 18 ': Male tip metal fitting 19: Tape buckle 21: Square ring 22: D ring 23: Belt presser 24: waist belt buckle 25: belt loop 26: tip metal fitting 41: connection band 100: safety belt 200 upper torso fixing part 300 thigh fixing part 400: rope 401: tip 500: electric winch 501: case main body 502: winding part 503: Drive unit 504: Engagement unit 505: Case lower surface 506: Exit unit 507: Ring 508: Operation unit 509: Connection line 600: Traveling vehicle 60 : Pulley unit 602: hook portion 603: Rope 604: transmission tower (Structure)
605: Horizontal member 700: Vertical rope 701: Rolip body 702: Stabilizer 703: Shock absorber A: Shoulder belt part B: Auxiliary belt part C: Chair part D: Trunk belt part E: Suspension belt part F: Chest belt part

Claims (2)

A thigh fixing part that removably fixes the operator's thigh while being integrated with a chair part that supports the operator's buttocks, and an upper torso fixing that supports and removably fixes the upper torso of the operator A full harness type safety belt that supports and distributes support points that support the worker by including at least a part,
A rope that hangs down and tows the safety belt;
An electric winch that winds and unwinds the rope;
A traveling vehicle that supports the electric winch at a height of the structure so as to be movable in a horizontal direction;
An operation unit for operating the electric winch at hand of the operator;
A maintenance work assisting device comprising: Using the maintenance work assisting device according to claim 1, the worker fixed to the safety belt is suspended along the structure with the rope,
By operating the electric winch by operating the operation unit to wind up or rewind the rope, the operator moves up and down along the structure, and the operator moves the electric winch horizontally by the traveling vehicle. A maintenance method for a structure, wherein the worker performs maintenance work on the structure while moving the machine horizontally along the structure.

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