WO2005007551A1

WO2005007551A1 - Working scaffold system of elevator

Info

Publication number: WO2005007551A1
Application number: PCT/JP2003/009262
Authority: WO
Inventors: Yukihiro Takigawa
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2003-07-22
Filing date: 2003-07-22
Publication date: 2005-01-27
Also published as: EP1647512A4; EP1647512B1; CN1675121A; EP1647512A1; JPWO2005007551A1; CN100336713C

Abstract

A working scaffold system of elevator in which a plurality of foundation columns are stood on the landing floor. A plurality of foundation diagonal members are arranged diagonally between the lower end parts of the foundation columns and the rear wall of the elevator shaft. A plurality of foundation horizontal beams are arranged horizontally between the foundation columns and the forward end part of the foundation diagonal members. A plurality of suspension columns being arranged vertically in the elevator shaft are supported on the foundation horizontal beams. Lower working floor is supported by the suspension columns below the foundation horizontal beams. An upper working floor is supported by the suspension columns above a lower working floor.

Description

Description Elevator work scaffolding equipment Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work scaffolding device that can be assembled during a work in a hoistway, such as an installation work. Background art

Generally, when installing an elevator that does not have a machine room in the upper part of the hoistway, that is, a so-called machine room-less elevator, the work of installing the lifting equipment and fixing the top of the guide rails are performed at the top of the hoistway. There is a need.

As a conventional scaffolding device for performing such a work, for example, Japanese Patent No. 2832354 discloses a structure in which a working floor extends from a landing floor on the top floor to a hoistway. However, with this structure, when the distance from the landing floor on the top floor to the top of the hoistway was long, the hands of the workers on the work floor could not reach the top of the hoistway. In addition, for example, Japanese Patent Publication No. 58-183597 discloses a structure in which a scaffolding device is assembled from the bottom of a hoistway to the top of a hoistway. However, with this structure, the scaffolding device becomes large, and it takes time to assemble and disassemble. Also, since the number of parts is considerably increased, it takes time to transport and the cost is increased.

The present invention has been made to solve the above-described problems, and while suppressing an increase in cost, even when the distance from the landing floor on the top floor to the top of the hoistway is long, the hoistway The purpose of the present invention is to provide a work scaffolding device that can easily perform work at the top.

An elevator work scaffolding device according to the present invention includes: a scaffold support frame installed so as to protrude from a landing into a hoistway; a lower work floor supported by the scaffold support frame; It has an upper working floor supported by a frame. Brief Description of Drawings

FIG. 1 is a side view showing a work scaffolding device for an elevator according to Embodiment 1 of the present invention, FIG. 2 is a plan view showing the work scaffolding device of FIG. 1,

FIG. 3 is a side view showing a state where the mounting position of the upper work floor in FIG. 1 is raised,

FIG. 4 is a side view showing a working scaffold device of an elevator according to Embodiment 2 of the present invention, FIG. 5 is a plan view showing the working scaffold device of FIG. 4,

FIG. 6 is a side view showing a work scaffolding device for an elevator in accordance with Embodiment 3 of the present invention, FIG. 7 is an enlarged view showing a VII portion of FIG. 6,

FIG. 8 is a cross-sectional view taken along the line V I I—V I I I of FIG. 6,

FIG. 9 is an enlarged view showing an IX part in FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1

FIG. 1 is a side view showing a work scaffolding apparatus for an elevator according to Embodiment 1 of the present invention, and FIG. 2 is a plan view showing the work scaffolding apparatus of FIG.

In the figure, a landing entrance 2 is provided between the hoistway 1 and the landing at Elevate overnight. The hoistway 1 has a hoistway front wall 1 a provided with a landing entrance 2, a hoistway rear wall 1 b facing the landing entrance 2, a pair of hoistway side walls 1 c, 1 d, a hoistway ceiling 1 e, And the shaft bottom 1 f.

A plurality of lifting beams 3 are fixed to the hoistway ceiling le. The lifting beam 3 supports a lifting device 4 used for installation work.

On the landing floor 5 on the top floor, two foundation columns 6 are erected. At the upper end of each foundation pillar 6, a support metal fitting 7 that is in contact with the hall wall above the hall entrance 2 is attached. .

Between the landing floor 5 and the rear wall lb of the hoistway, two foundation diagonal members 8 are arranged in parallel with each other. Each base diagonal member 8 has a base end 8a connected to the lower end of the base column 6, and a front end 8b abutting on the hoistway rear wall lb. Also, the foundation diagonal 8 _C tip 8 b is the base end portion 8 a base end portion 8 a are located in the hoistway 1 so as to be positioned obliquely upward of the connection fitting is connected to the base column 6 by (clamping member) 9 At the tip end 8b, there is provided a contact fitting 11 which is rotatable around a bin 10.In the hoistway 1, two basic horizontal beams 12 are arranged in parallel with each other and horizontally. You. Each foundation horizontal beam 12 has a first end 12a connected to the foundation column 6 and a second end 12b connected to the tip 8b of the foundation diagonal member 8. . The first end 12 a is connected to the foundation pillar 6 by a connection fitting (clamp member) 13.

Between the two foundation horizontal beams 12, two support beams 14 are installed, which are orthogonal to the foundation horizontal beams 12 and extend horizontally. Suspended poles 16 are connected to both ends of each support beam 14 via connection fittings (clamp members) 15. In the hoistway 1, a total of four suspension columns 16 are vertically arranged. The suspension pillar 16 is supported by a foundation horizontal beam 12 via a support beam 14.

The scaffolding support frame of the first embodiment is composed of a base pillar 6, a support bracket 7, a base diagonal 8, a connection bracket 9, a pin 10, a contact bracket 11, a basic horizontal beam 12, a connection bracket 13, and a support beam. 14, connecting fittings 15, and suspension columns 16. Further, the scaffold support frame is installed so as to protrude into the hoistway 1 from the landing.

The lower work floor 17 is supported by suspension columns 16 below the foundation horizontal beams 12. The lower work floor 17 is composed of two lower support beams 18 horizontally arranged between the lower ends of the front and rear suspension columns 16 and a plurality of bridges installed between the two lower support beams 18. And a lower scaffold plate 19. The lower receiving beam 18 is connected to the suspension column 16 by a connection fitting (clamp member) 20. In addition, the lower scaffolding plate 19 is fixed to the lower receiving beam 18 by a fastener such as a rubber band or a mouthpiece.

The lower working floor 17 is installed within the height of the landing entrance 2 so that it can be moved from the landing floor 5. '

The upper work floor 21 is supported by suspension columns 16 above the foundation horizontal beams 12. The upper work floor 21 is composed of two upper support beams 22 horizontally arranged between the upper and lower ends of the front and rear suspension columns 16 and a plurality of bridges installed between the two upper support beams 22. 2 upper scaffolding boards 2 3 And The upper receiving beam 22 is connected to the suspension column 16 by a connection fitting (clamp member) 24. Further, the upper scaffolding plate 23 is fixed to the upper receiving beam 22 by a fastener 25 such as a rubber band or a rope.

The foundation column 6, foundation diagonal 8, foundation horizontal beam 12, support beam 14, suspension column 16, lower receiving beam 18 and upper receiving beam 22 are made of, for example, steel pipe. Further, the lower scaffold board 19 and the upper scaffold board 23 are made of, for example, a wooden flat plate.

In such a work scaffolding device, when working on the top of the hoistway 1, the worker first moves from the landing to the lower work floor 17 and from the lower work floor 17 to the upper work floor 21. Move up. The upper work floor 21 can be moved from the lower work floor 17 using a table or a ladder, for example, before a part of the upper scaffold plate 23 is attached.

Since the lower work floor 17 and the upper work floor 21 located above the lower work floor 17 are provided in this way, even when the distance from the landing floor 5 on the top floor to the top of the hoistway 1 is long, The worker can easily work on the top of the hoistway 1 by getting on the upper working floor 21. Also, since there is no need to assemble the scaffold from the hoistway bottom 1f, it is possible to suppress an increase in cost, and it is easy to assemble and disassemble.

When the distance from the landing floor 5 on the top floor to the top of the hoistway 1 is short, the work may be performed only on the lower work floor 17 without mounting the upper work floor 21.

To work efficiently on the upper work floor 21, the distance from the hoistway ceiling 1 e to the upper work floor 21 is, for example, 1500 mm, depending on the height of the worker. It is desirable to secure the above.

Further, it is preferable that the distance from the lower work floor 17 to the upper work floor 21 is within a range where the worker on the lower work floor 17 can mount the upper work floor 21. Assembly of the work scaffolding device is easy.

Furthermore, it is desirable that the vertical mounting position of the upper work floor 21 can be adjusted. As a result, it is possible to easily respond to a change in height from the landing floor 5 on the top floor to the hoistway ceiling 1e.

For example, as shown in Fig. 3, when the height to the hoistway ceiling 1e is higher than that in Fig. 1, the height of the upper work floor 21 with respect to the suspension columns 16 is higher than in Fig. Work at the top of Road 1 can be facilitated. Conversely, if the height to the hoistway ceiling 1 e is lower than that in Fig. 1, the upper work floor 2 1 The height of the work space above can be sufficiently secured.

Embodiment 2

Next, FIG. 4 is a side view showing a working scaffolding device for an elevator according to Embodiment 2 of the present invention, and FIG. 5 is a plan view showing the working scaffolding device of FIG. In this example, a ladder 31 is provided between the lower work floor 17 and the upper work floor 21. Also, a portion of the upper scaffolding plate 23 has been removed to allow movement from the ladder 31 to the upper working floor 21. Other configurations are the same as those in the first embodiment.

By providing the ladder 31 between the lower work floor 17 and the upper work floor 21 in this manner, movement between the lower work floor 17 and the upper work floor 21 is facilitated. The work efficiency can be improved. Embodiment 3.

Next, FIG. 6 is a side view showing a working scaffolding device for an elevator according to Embodiment 3 of the present invention, FIG. 7 is an enlarged view showing a VII part in FIG. 6, and FIG. 8 is a line VIII-VIII in FIG. FIG. 9 is an enlarged view showing a portion IX in FIG.

In the figure, each suspension column 16 is provided with a plurality of horizontally extending pin holes 16a. The pin shiso 16a is a connection fitting for connecting the suspension column 16 to the foundation horizontal beam 1 2 slightly above the connection floor 15. 0 and just below the connection fitting 24 for connecting the upper work floor 21 to the suspension pole 16.

A pin 32 is inserted into each pin hole 16a. Both ends of each bin 32 project horizontally from the surface of the suspension pole 16. In addition, a nut for retaining is screwed to the tip of each pin 32.

Between the base ends 8 a of the two foundation diagonal members 8, a backup member made of steel pipe 3

3 is connected via a connection fitting (clamp member) 34. Backup material

3 3 extends horizontally across hallway 2 with both ends on both sides of hallway 2 Abuts the hoistway front wall 1a.

A pin hole 12c is provided in a portion of each base diagonal member 8 slightly above the connection fitting 34. A pin 35 is inserted through each pin hole 12c. Both ends of each pin 35 protrude from the surface of the foundation diagonal member 8. Further, a nut for retaining is screwed to the tip of each pin 35.

In such a work scaffolding device, since the pins 32 are passed through the suspension columns 16, the connection fittings 20 and 24 slide downward with respect to the suspension poles 16, or slip off, or the connection Even if the suspension column 16 slides downward and slips, the fittings 20, 24, and 15 can be brought into contact with the pin 32 to prevent such slippage, Stability can be improved.

A backup member 33 was connected between the diagonal foundations 8, and both ends of the backup member 33 were brought into contact with the front wall 1a of the hoistway, so that the base end 8a of the diagonal foundation 8 was raised and lowered. Sliding away from Road 1 can be prevented, which can also improve the stability of the scaffold.

Further, since the bin 35 is inserted into the base diagonal member 8, the sliding of the connection fitting 34 with respect to the base diagonal member 8 can be prevented, and the stability of the scaffold can be further improved. The work scaffolding device according to the present invention can be used not only during the installation of the elevator, but also, for example, at the time of repair work or maintenance.

Further, in the above example, the work scaffolding device of the present invention is mainly installed on the landing floor on the top floor, but if necessary, it can be installed on the landing floor on a landing floor other than the top floor. . It can also be used for hoisting work in elevators with a machine room.

Further, in the above example, two foundation columns 6, foundation diagonal members 8, and foundation horizontal beams 12 are provided two by two. However, in some cases, three or more of these may be provided.

Furthermore, in the above example, four suspension columns 16 are used, but in some cases, five or more suspension columns may be used. In this case, three or more support beams 14 may be used. Also, the basic structure of the scaffold support frame is not necessarily limited to the above example.

Claims

The scope of the claims

1. A scaffold or holding frame installed to protrude from the landing into the hoistway,

A lower working floor supported by the scaffold support frame, and

Upper work floor supported by the scaffold support frame above the lower work floor

Elevator work scaffolding equipment equipped with.

2. The above scaffold work frame is

Multiple foundation pillars standing at the landing,

A base end connected to the lower end of the foundation pillar, and a front end that abuts on a hoistway rear wall facing the landing entrance, so that the front end is positioned obliquely above the base end. A plurality of foundation diagonals placed in the hoistway,

A plurality of foundation horizontal beams having a first end connected to the foundation pillar and a second end connected to the tip end of the foundation diagonal, and arranged horizontally in the hoistway , And a plurality of suspension pillars supported by the foundation horizontal beam and vertically arranged in the hoistway,

The elevator work according to claim 1, wherein the lower work floor is supported by the suspension columns below the foundation horizontal beams, and the upper work floor is supported by the suspension columns above the lower work floor. Scaffolding equipment.

3. The work scaffolding device according to claim 1, wherein a vertical mounting position of the upper work floor is adjustable.

4. The work platform according to claim 1, further comprising a ladder provided between the lower work floor and the upper work floor.

5. A pin is passed through the suspension pole below at least one of the lower work floor and the upper work floor, and the pin projects horizontally from the surface of the suspension pole. 3. The work scaffolding device according to claim 2, wherein the elevator is a work scaffold. ·-

6. The backing member further extending horizontally across the landing entrance and connected to the foundation diagonal material, and further comprising backup members having both ends abutting on a hoistway front wall on both sides of the landing entrance. Elevator work scaffolding equipment.