JPH0737319B2 - Gondola suspension device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gondola suspension device for suspending a gondola used for exterior construction of a high-rise building.

[0002]

2. Description of the Related Art When performing exterior work of a high-rise building, such as painting work, window glass, outer wall of tiles, polishing, cleaning, waterproof repair work, etc., a scaffold is built around the high-rise building and used as a scaffold. A worker rides on top of the work. When performing exterior work for other high-rise buildings, hook one end of the wire somewhere in the building, attach the other end to a winch equipped with a gondola, and drive the winch to move the gondola up and down. ing. There is also a gondola suspension device that suspends the gondola with a rope and uses a double pulley to manually move the gondola up and down. In addition, there is a gondola suspension device exclusively for descent, in which a person on the gondola operates the rope that suspends the gondola.

[0003]

However, there is a problem in that it takes a lot of money to build a scaffold. With a gondola suspension device that suspends one end of the wire somewhere in the building and raises and lowers the gondola with a winch provided for the gondola,
There is a drawback that it cannot be used if there is no hook member that can withstand the hook on the roof of the building. Even if there is a hook member,
Since the hanging member is fixed on the rooftop or the like, there is a drawback that the gondola cannot be moved laterally in a suspended state. Furthermore, since the winch is equipped with a gondola, there is a problem that the gondola becomes heavy and difficult to handle.

The gondola suspension device, which raises and lowers the gondola manually, has a drawback that it requires a considerable amount of labor.
In addition, a gondola suspension device dedicated to descending may be inconvenient for work. The present invention has been made in view of the above conventional problems, it is not necessary to assemble an expensive scaffold, it can be used even when there is no hanging member on the roof of the building, etc., and the gondola is suspended. An object of the present invention is to provide a gondola suspension device that can move the gondola laterally in a state and can freely move the gondola up and down without relying on human power.

[0005]

According to a first aspect of the present invention, there is provided a support rod, a fulcrum member which is attached to the support rod and serves as a fulcrum when the support rod is installed, and one end of the support rod from a tip end thereof. A wire to which a gondola hangs down in the direction of gravity is connected, and a portable winch that is attached to the rear end side of the fulcrum member of the support rod and is connected to the other end of the wire to move the gondola up and down. The ratio of the length of the supporting rod from the fulcrum member to the front end side and the rear end side is set so that the load applied to the wire by the weight of the support rod and the portable winch is supported. It is a gondola suspension device.

The invention of claim 2 further comprises a traveling means for traveling at least the support rod, the fulcrum member, the wire and the portable winch in a direction intersecting with the extending direction of the support rod. Is.

[0007]

According to the first aspect of the invention, the supporting rod is installed on the roof of a building or the like with the fulcrum member as a fulcrum, and the gondola is connected to the wire whose one end hangs down in the direction of gravity from the tip of the supporting rod. The end is connected to a portable winch attached to the rear end side of the fulcrum member of the supporting rod, and the portable winch drives to move the gondola up and down.
The ratio of the length from the fulcrum member of the support rod to the length on the front end side to the length on the rear end side is set so as to support the load applied to the wire by the weight of the support rod and the portable winch. It is possible to support a load applied to a wire such as a gondola without fixing it to a hooking member provided on the.

According to the second aspect of the invention, at least the support rod,
Since the fulcrum member, the wire, and the portable winch are provided with traveling means for traveling in a direction intersecting the direction in which the support rod extends, the gondola can be moved laterally while the gondola is still connected to the wire.

[0009]

1 and 2 show a gondola suspension device 50 according to a first embodiment of the present invention. A pair of gondola suspension devices 5
0 is provided on the roof 71 of the building 70. The structure of the gondola suspension device 50 will be described. Reference numeral 1 indicates a support rod, and the support rod 1 is composed of a first support rod 1a and a second support rod 1b slidably fitted to the first support rod 1a. The second support rod 1b is pulled out from the first support rod 1a and can be fixed by a bolt at an arbitrary position.
A pulley 3 is rotatably attached to the tip of the first support rod 1a.

Reference numeral 4 indicates a fulcrum holder. The fulcrum holder 4 is slidably fitted on the first support rod 1a and can be fixed at any position by bolts. A pair of fulcrum wheels 5 as fulcrum members are attached to the lower surface of the fulcrum holder 4, and the fulcrum holder 4 can run in a direction intersecting with the extending direction of the support rod 1. Reference numeral 2 indicates a portable winch, and the weight of the portable winch 2 is 20.
It weighs 25 to 25 kg and can be carried by human power. The portable winch 2 is mounted and fixed on a base 72. The base 72 is attached to the base end portion of the second support rod 1b. Further, the winch wheel 5 is provided on the lower surface of the base 72.
a is attached, and the base 72 can run in a direction intersecting with the direction in which the support rod 1 extends while the portable winch 2 is mounted. The base 72 can be detached from the second support rod 1b and can be individually carried.

Reference numeral 6 denotes a wire, which is connected to a portable winch 2 and is pulled out along a supporting rod 1. Further, one end of the wire 6 hangs down in the direction of gravity via a pulley 3. Gondola 7 at one end of wire 6
Are connected. The weight of the portable winch 2 is 25 kg.
Is. When the portable winch 2 is driven in the winding direction of the wire 6, the gondola 7 rises, and when driven in the drawing direction of the wire 6, the gondola 7 descends. The gondola 7 may be provided with a control switch for controlling the drive of the portable winch 2, and the worker S on the gondola 7 may operate the control switch to control the lifting operation of the gondola 7.

In the pair of gondola suspension devices 50, the fulcrum wheel 5 is installed on the head 16 and the winch wheel 5a is installed on the roof 71. The length L1 from the fulcrum wheel 5 of the support rod 1 of the gondola suspension device 50 to the rear end side is set to about 20 times the length L2 from the fulcrum wheel 5 of the support rod 1 to the tip of the pulley 3. Therefore, 25Kg by lever principle
The weight of the portable winch 2 can support a static load of about 500 kg on the wire 6.

The total weight of the gondola 7, the two workers S riding the gondola 7 and the tools is about 160 kg. Therefore, the load applied to the wire 6 of one suspension device 50 is 8
It is 0 kg. Even when the worker moves in the gondola 7, the load applied to the wire 6 of the single suspension device 50 is 160 kg at the maximum. Therefore, even if the gondola suspension device is not fixed to the hanging member, the weight of the portable winch 2 can sufficiently support the load applied to the wire 6, and the suspension device 50 suspends the gondola 7 safely. be able to. The fulcrum wheel 5 and the winch wheel 5a make it possible to easily move the gondola suspension device 50 in the lateral direction (A-B direction), and at the same time, the gondola suspension device 5
It has a role to prevent 0 from falling.

FIG. 3 shows a gondola suspension device 80 according to the second embodiment. Since the gondola suspension device 80 has the same members as the gondola suspension device 50 according to the first embodiment, the same members as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. To do. Reference numeral 24 indicates a fulcrum holder, and this fulcrum holder 24 is slidably fitted to the first support rod 1a and can be fixed at any position by bolts. The fulcrum wheel 5 is attached to the lower surface of the fulcrum holder 24, and the fulcrum wheel 5 is rotated by the reduction motor 12.

As shown in detail in FIG. 4, the fulcrum holder 24 is provided with a pair of roller support members 24a. The roller support member 24a extends horizontally toward the front,
Further, it is formed in a shape that bends downward at a right angle. The outer surface guide roller 10a is horizontally attached to the inside of the front end portion of the roller support member 24a. Reference numeral 30 indicates a roller supporting member, and the roller supporting member 30 is the first
It is slidably fitted to the support rod 1a and can be fixed by bolts at any position. A pair of inner surface guide rollers 10b are horizontally attached to the lower surface of the roller support member 30.

A gondola 37 is connected to the tip of the wire 6. A steady roller 15 is attached to the gondola 37. A base 72 on which the portable winch 2 is mounted is provided with arms 72a protruding to both sides, and winch wheels 5a are attached to the arms 72a. Further, one winch wheel 5a is driven by the reduction motor 32. Reference numeral 8 indicates a control switch, and the control switch 8 operates the portable winch 2, the reduction motor 12, and the reduction motor 32. A safety wire 13 is connected to the worker S. The fulcrum holder 24, the fulcrum wheel 5, the deceleration motor 12, the roller support member 24a, the outer surface guide roller 10a, the roller support member 30, the inner surface guide roller 10b, the arm portion 72a, the winch wheel 5a, and the deceleration motor 32 constitute a traveling unit. There is.

In this gondola suspension device 80, the fulcrum wheel 5 is installed on the head 16 of the building 70. Furthermore, the outer surface guide roller 10a contacts the outer surface 70a of the building 70, and the inner surface guide roller 10b contacts the inner surface 70b of the building 70. That is, the head 16 of the building 70 is sandwiched between the outer surface 70a and the inner surface 70b by the outer surface guide roller 10a and the inner surface guide roller 10b.

Next, the movement operation of the gondola suspension device 80 in the lateral direction (A-B direction) will be described. The control switch 8 is operated to operate the deceleration motor 32 and the deceleration motor 12, drive the winch wheels 5a and the fulcrum wheels 5, and move the gondola suspension device 80 in the lateral direction (A-B direction). With the outer guide rollers 10a and the inner guide rollers 10b, the headstock 16 of the building 70 is attached to the outer surface 7.
Since it goes in from 0a and the inner surface 70b, the gondola suspension device 80 moves while maintaining stability, and the gondola suspension device 80 can be safely moved in the lateral direction even when the worker S is on the gondola 37. It is possible to move (A-B direction).

Further, since the steady rest roller 15 is in contact with the outer surface 70a of the building 70, when the gondola 37 is moved up and down, moved in the lateral direction (A-B direction) and during work,
It is possible to prevent the gondola 37 from swinging. The length from the fulcrum wheel 5 of the support rod 1 of the gondola suspension device 80 to the rear end side is set to about 20 times the length from the fulcrum wheel 5 of the support rod 1 to the tip of the pulley 3. The weight of the portable winch 2 is 25 kg.

The embodiment of the present invention has been described above in detail. However, the specific structure is not limited to this embodiment, and the present invention can be applied even if the design is changed without departing from the scope of the present invention. Included in the invention. For example, the number of gondola suspension devices may be increased depending on the weight of the suspended gondola.

[0021]

As described above, the gondola suspension device of the present invention does not require expensive scaffolding, can be manufactured at low cost, and can be used even when there is no hook member on the roof of a building. In addition, it is possible to move the gondola in the left-right direction (horizontal direction) while the gondola is suspended, and it is possible to freely move the gondola up and down without relying on human power.

[Brief description of drawings]

FIG. 1 is a perspective view of a use state of a gondola suspension device according to a first embodiment of the present invention.

FIG. 2 is a side view of the gondola suspension device according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a use state of the gondola suspension device according to the second embodiment of the present invention.

FIG. 4 is a partial perspective view of a gondola suspension device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support rod 2 Portable winch 3 Pulley 4, 24 Support point holder 5 Support point wheel 5a Winch wheel 6 Wire 7, 37 Gondola 10a Outer surface guide roller 10b Inner surface guide roller 12, 32 Reduction motor 24a Roller support member 30 Roller support member 72 Base 72a Arm 50, 80 Gondola suspension device

Claims (2)

[Claims] 1. A support rod, a fulcrum member that is attached to the support rod and serves as a fulcrum when the support rod is installed, and one end of the support rod hangs down from the front end toward the direction of gravity to connect the gondola. A wire and a portable winch that is attached to the rear end of the supporting rod from the fulcrum member and is connected to the other end of the wire to move up and down the gondola. A gondola suspension device, wherein a ratio of a length to a length on a rear end side is set so as to support a load applied to the wire by the weight of the supporting rod and the portable winch. 2. The gondola suspension device according to claim 1, further comprising traveling means for traveling at least the support rod, the fulcrum member, the wire and the portable winch in a direction intersecting a direction in which the support rod extends.