JPH0442433Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a hanging device for gondolas and the like used for construction of external walls of buildings.

[Prior art and its problems]

Generally, when performing exterior wall work such as replacing tiles or repainting a building, gondolas are often suspended from the roof.

Conventionally, as a device for suspending this type of gondola, when working below a building, as shown in FIG. There is a device that hangs the gondola 5 by fixing it at the corner A point of the wire rope fixing device 4a and hanging the wire rope 4 from the wire rope fixing device 4a to the pulley 1.

Generally, when hanging the gondola 5 directly from the parapet P of a building as in this device, the gondola 5 is pressed against the outer wall 6 of the building by the horizontal component of the gondola's own weight. This pressing force provides the advantage that the gondola 5 does not sway during operation due to the frictional force with the outer wall 6. However, in this case, gondola 5
When the gondola 5 is raised by the rope hoist 4b, it is necessary to push the gondola 5 away from the outer wall 6 by hand.Furthermore, as the gondola 5 gets closer to the roof, the above-mentioned horizontal component force becomes extremely large. As Gondola 5 grows larger, it becomes impossible to push Gondola 5 away with human power, and eventually Gondola 5
This causes the inconvenience that it becomes impossible to raise the building to the top of the building.

Therefore, in order to avoid the above-mentioned inconvenience, when carrying out the work, the L-shaped rod 7 shown in FIG. A device is used that suspends the gondola 5 by hanging a rope 4 at the upper end point C. However, when using this device to perform work by suspending the gondola 5 below the building, the gondola 5 can be raised to the top of the building 3, but the gondola 5 is separated from the outer wall 6. The downside is that it is difficult to work because it makes people shake while standing, and it also poses a danger to the workers.

This idea was made in view of the above circumstances, and the purpose is to provide a hanging device for gondolas etc. that can always hang gondolas etc. in a stable condition regardless of the height of the outer wall where construction is being performed. shall be.

〔Example〕

1 to 3 are diagrams showing an embodiment of this invention. FIG. 4 is a diagram showing the hanging device placed on the roof of a building.

8 in these figures is an L-shaped projecting beam body. The projecting beam main body 8 includes a square pillar-shaped pillar part 8a with a pulley 9 attached to the tip thereof, and a square pillar-shaped pillar part 8a with a square cross section that projects from the base end of the pillar part 8a in a direction perpendicular to the length direction of the pillar part 8a. It is integrally constructed with a beam-shaped arm portion 8b. A support member 10 is fixed to one side of the proximal end side of the projecting beam main body 8 by welding means. A hole 11 is formed in this support member 10 in parallel to the direction of the arm portion 8b.
A threaded rod 12 with a male thread formed on the outer periphery of the tip is inserted into the hole 11 so as to be rotatable about its axis, and a handle 13 is attached to the rear end of the threaded rod 12. ing. Further, a disk-shaped threaded rod fixing member 14 is attached to the threaded rod 12 with the supporting member 10 in between, in order to prevent the threaded rod 12 from moving in its length direction.

On the other hand, on the arm portion 8b of the projecting beam main body 8, there is a square cylindrical slide member 15 whose inner peripheral portion is shaped to engage with the cross-sectional shape of the arm portion 8b.
It is slidably attached to the arm portion 8b in the longitudinal direction. A female screw member 17 having a female screw hole 16 coaxial with the threaded rod 12 is attached to one side of the slide member 15, and a pulley 18 is attached to the other side. The threaded rod 12 is screwed into the female threaded hole 16 of the female threaded member 17.

A fixing plate 19, which is a plate having an L-shaped cross section, is attached to the bottom of the arm 8b and the bottom of the support member 10 in the projecting beam main body 8.

In order to suspend the gondola 5 with the device having the above configuration, first, the arm portion 8b projects horizontally to the outside of the outer wall 6 of the building 3 and perpendicularly to the outer wall 6, as shown in FIG. The projecting beam main body 8
is placed on the parapet P and fixed by the fixing plate 19. When the gondola 5 is suspended below the building, the handle 13 is used to hang the threaded rod 12.
By rotating the slide member 15 and moving it until it hits the fixed plate 19, the pulley 18 is moved to the vicinity of the corner point A of the parapet P. Gondola 5 suspended from this pulley 18 with rope 4
Since it is closely attached to the outer wall 6 of the building 3, it does not move.

Next, when continuing the work toward the top of the structure, the rope is wound up by the rope winder 4b and the gondola 5 is raised, but as it goes up, the rope 4 pulls the gondola 5 towards the structure. Since the pulling force of the gondola 3 toward the outer wall 6 increases, the force pressing the gondola 5 against the outer wall 6 increases. In order to relieve this pressing force, the threaded rod 12 is rotated by the handle 13, the slide member 15 is moved toward the distal end of the arm portion 8b, and the pulley 18 is moved to point B. In this way, as the gondola 5 is raised, the position of the pulley 18 can be gradually moved toward the tip of the arm 8b, so that the gondola 5 can be moved up to the top of the building 3 against the outer wall without excessively increasing the pressing force. It is possible to raise it while keeping it in close contact with 6.

In addition, by moving the slide member 15 to the tip of the arm 8b and positioning the pulley 18 at point C, the gondola 5 can be raised to the top of the parapet P, allowing workers to get on and off and equipment and cargo to be carried out.・Can be transported.

Furthermore, in the hanging device having the above configuration, the projecting beam main body 8, which receives the load of the gondola 5, etc., has an arm portion 8b disposed so as to horizontally protrude from the outer wall 6 of the building 3, and this arm portion 8b. A slide member 15 is attached to the arm portion 8b, and a pulley 18 and a pulley 9 are attached to the upper end of the support portion 8a. is attached, and a rope 4 for suspending the gondola 5 is wound around it. As a result, the load that the joist main body 8 receives is dispersed into the load applied to the arm part 8b and the load applied to the column part 8a, so that the load can be prevented from concentrating on one point of the joist main body 8. This makes it possible to prevent the support portion 8a and the arm portion 8b from bending or buckling due to the load, thereby improving the durability of the device.

〔Effect of the invention〕

As explained above, according to the device for hanging gondolas and the like of this invention, by freely moving the position of the pulley that serves as the fulcrum from which the rope is suspended depending on the height of the outer wall of the building where construction is being carried out, This method allows gondolas and other objects to be hung without disturbing them, regardless of their height.

Furthermore, when moving the gondola, etc. up and down, the sliding member to which the pulley is attached is moved to the tip of the arm, thereby preventing the pressing force of the gondola, etc., against the outer wall of the building from increasing excessively. This allows for smooth lifting and lowering.

Furthermore, by making the main body of the joist, which receives the load of gondolas, etc., into an L-shape, and by providing pulleys on each of the support and arm parts, the load can be dispersed, resulting in highly durable suspension. The advantage is that the device can be provided.

[Brief explanation of drawings]

Fig. 1 is a side view of an embodiment of this invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view taken along A-A in Fig. 2,
FIG. 4 is a diagram showing a state in which this device is installed on the roof of a building and a gondola is suspended, and FIGS. 5 and 6 are diagrams showing an example of a conventional hanging device. 5...Gondola, 8...L-shaped beam, 8a...
Support portion of L-shaped beam, 8b... Arm portion of L-shaped beam, 9... Pulley, 10... Support member, 11...
Hole, 12... Threaded rod, 15... Slide member, 1
6... Female screw hole, 18... Pulley.

Claims (1)

[Scope of Claim for Utility Model Registration] A device fixed to the roof of a building for suspending a gondola, etc., which comprises a beam-shaped arm portion arranged to project horizontally from the outer wall of the building, and this arm. an L-shaped projecting beam body consisting of an L-shaped beam body extending upward from the base end and having a pulley attached to the distal end; a threaded rod supported by the projecting beam main body in a state where it can rotate and whose movement is restricted in the axial direction; a female threaded member having a female threaded hole into which the threaded rod is screwed; and a pulley; A hanging device for a gondola or the like, comprising a slide member slidably attached to the arm portion along the axial direction.