JPH06345360A - Temporarily provided elevator - Google Patents

Abstract

PURPOSE:To provide a temporarily constructed elevator for obtaining stability of a lifting pallet at lifting time, high speediness of a lifting speed and accuracy of a stop position in a moving floor. CONSTITUTION:A steel pipe pillar unit 10, formed of four steel pipe pillars, is connected by a joint part 10c and provided in desired height, in the front surface of a framework scaffold A. The front surface two steel pipe pillars are used as a guide rail 10b, to provide a wheel unit 40 in the upper/lower right/left of a side wall 22a of a pallet 20 in a side of the guide rail 10b. A wheel 30 is provided through an axle in three parts of protrusive end parts and a central part of a central surface of an almost leftward laid U-shaped frame material of the wheel unit 40. A peripheral surface of the wheel 30 is surrounded to be interposed by the wheel from three directions of a side surface of the guide rail 10b. The right/left wheel units 40 are provided so that an opening side of the almost leftward laid U-shaped frame material 41 is oppositely faced to each other. The peripheral surface is wrapped in hard rubber. A pulley 60 is interposed in the pallet 20 and connected to an electric motor driven winch 50 by a wire rope 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary elevating device used for unloading construction equipment and elevating a construction worker during construction work.

[0002]

2. Description of the Related Art Conventionally, vertical carriers used for unloading construction equipment and for elevating a construction worker in construction work include an elevator for a person carrying vertically the construction worker and the equipment and a unloading lift dedicated for unloading. There is. The former is a mechanism that emphasizes safety, and the latter is a mechanism that emphasizes load capacity, shape, and lifting speed. As for its lifting, it is designed to be lifted by a rack type or a wire lifting type using a mast or a guide rail, and the model is selected and installed according to the purpose of use.

[0003]

However, in an elevator for man-powered cargo, since a cage is attached to one mast to move up and down in a rack type, there is a limitation in the drive device.
The number of passengers was small and the equipment was limited to small ones. Furthermore, as construction work has become larger and higher-rise as in recent years, it has become necessary to increase the speed of ascending and descending and the accuracy of the stop position on the moving floor. In addition, if the loading platform is long, such as a lifting lift in which the loading platform moves up and down between the guide rails provided on the left and right sides, the loading platform becomes unstable due to the loose guide rails, which is inconvenient for loading heavy items. occured.

The present invention has been developed in response to the demands for diversification of performance and purpose of use as described above, and provides a temporary lifting device with good performance due to diversified uses and increase in size and height of construction work. The purpose is to do.

[0005]

In order to achieve the above object, a steel pipe column is used as a guide rail to guide an elevator,
In a temporary lifting device that raises and lowers the elevator with a drive device, a steel pipe column unit in which steel pipe columns connected by horizontal shafts are set up at each of the four corners is a joint part that can be inserted into the upper and lower parts of the steel pipe column. While connecting in the vertical direction,
Of the steel pipe columns, two steel pipe columns are provided as guide rails so as to project left and right from the other two steel pipe columns, and the wheel unit provided on the loading platform is sandwiched between the two projected guide rails. The loading platform is mounted and the driving system can raise and lower the loading platform.

Further, three wheels are attached to the wheel unit, and the wheel unit is provided so as to sandwich two guide rails from the left and right above and below and on the left and right of the loading platform, and the wheels of each wheel unit are guided. Insert the rail from three sides. Further, the outer peripheral surface of the wheel is wound with hard rubber.

[0007]

Since the present invention is constructed as described above,
The steel pipe pillars forming the steel pipe pillar unit can be replenished at their joints and set to a desired height required for the lifting device. Furthermore, since the guide rail of the vertical steel pipe column set to the desired height as described above is sandwiched by the wheel units provided on the cargo bed, the cargo bed is provided.
The guide rail can be firmly sandwiched and gripped by the wheel unit, and the loading platform that moves up and down at high speed becomes stable and serves as an elevating device for both loads and persons.

Further, the two guide rails are sandwiched from the left and right by the wheel units provided above and below and on the left and right of the loading platform, and three wheels are attached to the wheel unit.
By sandwiching from the direction, it is possible to effectively prevent tilting of the lifting platform, forward and backward shaking, and the like.
In addition, since the outer peripheral surface of the wheel is wrapped with hard rubber, it is firmly held in close contact with the guide rail when moving up and down, improving stability of the loading platform when moving up and down and ease of stopping for stop commands. In addition, it is possible to reduce the frictional noise between the wheel and the guide rail when moving up and down.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is an explanatory diagram showing the installation status of the temporary lifting device. On the front surface of the framework scaffold A of the building under construction, a steel pipe pillar unit 10 composed of four steel pipe pillars is vertically connected and provided in a tower shape. The frame scaffold A has a horizontal member B and a steel pipe pillar unit. 10 is fixed. In the steel pipe column unit 10, the horizontal shaft members 11a are horizontally mounted in a ladder shape between the two steel pipe columns 10a at a predetermined interval in the vertical direction. Further, from the location of the left and right steel pipe columns 10a where the horizontal shaft members 11a are provided, the horizontal shaft members 11a
The horizontal shaft members 11b are provided so as to project in a ladder shape in parallel with each other at an angle of 90 degrees with respect to a, and are formed to have a generally U-shaped cross section.

The two steel pipe columns 10 are further provided at the tip of the horizontal shaft member 11b provided so as to project in parallel with the ladder shape.
A horizontal shaft member 11c is passed in a ladder shape in parallel with the horizontal shaft member 11a passed between a. The horizontal shaft member 11c is set to be longer than the horizontal shafts of the two horizontal shaft members 11b, and both ends of the horizontal shaft member 11c project slightly from the two horizontal shaft members 11b to the left and right. At both ends of the horizontal shaft member 11c,
Each of the steel pipe columns provided in the vertical direction is assembled as a guide rail 10b. The four steel pipe columns and the horizontal shaft members are both formed of hollow circular steel pipes, and their joints are welded to form a steel pipe column unit 10.
Instead of the hollow circular steel pipe, it is also possible to use a solid rod having an appropriate strength.

The steel pipe column 10a of the steel pipe column unit 10 is provided with a joint portion 10c so that the steel pipe column unit 10 can be extended in the vertical direction. For example, the lower end of the steel pipe column 10a is set to have a diameter smaller than that of the hollow circular steel pipe so that the other end of the steel pipe column 10a can be fitted and inserted into the hollow portion of the hollow circular steel pipe. A joint rod is provided. On the other hand, the upper end of the steel pipe column 10a uses the circular opening of the hollow circular steel pipe as it is, and the lower end 10c of the other steel pipe column 10a can be fitted and inserted. The same applies to the guide rail 10b, which is shown in FIG. 1 (b).

Next, the elevator C will be described. The elevator C is composed of a loading platform 20 and wheels 30, and is formed in such a manner that a floor plate 21 is surrounded by side walls 22 for preventing fall.
And the side wall 22a facing the guide rail 10b side
Wheels 3 with guide rails 10b sandwiched above and below both ends of
A zero wheel unit 40 is provided. In the wheel unit 40, axles 42 are provided at three locations, namely, a projecting end portion of two facing surfaces 41a of a frame member 41 formed in a substantially U shape and a central portion of a central surface 41b. This axle 4
By attaching the wheels 30 to the wheel 2, the wheels 30 can be provided so as to be displaced from each other by 90 degrees. This state is shown in FIG. 1 (c) and FIG.
FIG. 2 is an enlarged view of a portion surrounded by a circle in FIG.

On the outer peripheral surface of the wheel 30 provided in three directions of the U-shaped frame member 41, the side surface of the guide rail 10b is sandwiched so as to be surrounded by the wheel from three directions. The outer peripheral surface is formed in a lightly concave shape so that the side surface of the guide rail 10b can be firmly sandwiched. In this way, the two guide rails 10b are provided on the wheel units 40 provided above and below both ends of the side surface of the luggage carrier 20.
Each of the wheels 30 is firmly sandwiched. Hard rubber is wound on the outer peripheral surface of the wheel 30, so that the wheel 3
The vibration between 0 and the side surface of the guide rail 10b, the squeaking noise, and the like are absorbed, so that the silent lifting operation can be performed.

By providing the wheel unit 40 in this manner, the loading platform 20 is firmly gripped by the two guide rails 10b by the wheels 30 of the wheel unit 40,
It is possible to prevent the loading platform 20 from leaning forward, swinging left and right, and the like. Further, in the present embodiment, the electric winch 50 provided on the ground with the loading platform 20 and the pulley 60 provided on the projecting end of the steel pipe column 10a are interposed and tied with the wire rope 70 so as to be able to move up and down.

As a method of raising and lowering the elevator C, in addition to the method of using the electric winch 50, for example, as shown in FIG.
A rack 100 of books is provided in the vertical direction, and this rack 100
The pinion 110 is meshed with the pinion 110, and the pinion 110 and the drive motor 120 provided on the carrier 20 are connected to the chain 13
It is also possible to connect by 0 so that the loading platform 20 can be moved up and down. Further, the side surface of the guide rail 10b may be formed in a rack, and one of the three wheels 30 provided in the wheel unit 40 may be used as a pinion so that the structure can be moved up and down.

Further, as shown in FIG. 4, the loading platform 20 is replaced with a bracket 200, a hoist 210 is placed on the bracket 200, a rail 220 is provided on the ceiling of each floor under construction so that the hoist 210 can move, and wheels 30 are used. A limiter is provided on each floor of the guide rail 10b to be sandwiched, and an elevator D and a hoist 210 which are connected to the electric winch 50 by remote control or wired from a site office or the like.
May be allowed to move.

[0017]

According to the present invention, unlike the prior art, the guide rail is sandwiched by the wheels from a plurality of directions, so that the guide rail is highly stable in mounting.
It is possible to improve the ascending / descending speed of the loading platform provided with the wheel having the above-described configuration, and the braking stability at the time of ascending / descending. Further, since the hard rubber is wound, the vibrations of the wheel and the guide rail during up and down are absorbed, and the working environment in terms of noise can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram (a) showing the overall installation status of a temporary lifting device. The side view (b) of a steel pipe pillar unit. Explanatory drawing (c) which showed the attachment condition of the loading platform to a steel pipe pillar unit.

FIG. 2 is a partially enlarged view showing how wheels are sandwiched by guide rails.

FIG. 3 is a side view when a lifting method using a rack and a pinion is adopted.

FIG. 4 is an explanatory view of a situation in which a hoist is mounted on a bracket of an elevator to be used.

[Explanation of symbols]

 10 Steel Pipe Column Unit 10a Steel Pipe Column 10b Guide Rail 10c Joint Part 20 Bed 30 Wheel 40 Wheel Unit 100 Rack 110 Pinion 210 Hoist C Elevator

Front Page Continuation (72) Inventor Naoshi Oi 4-6-15 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd.

Claims (3)

[Claims] 1. A temporary pipe lifting unit in which a steel pipe column is used as a guide rail to guide an elevator and a drive unit raises and lowers the elevator, and a steel pipe column unit in which steel pipe columns connected by horizontal shaft members are set up at substantially four corners, respectively. Are vertically connected to each other at joints that can be inserted into the upper and lower parts provided in the steel pipe column, and two steel pipe columns as guide rails of the steel pipe columns are projected left and right from the other two steel pipe columns. A temporary lifting device, wherein a wheel unit provided on a loading platform is sandwiched between the two protruding guide rails to mount the loading platform, and the loading unit can be moved up and down by a drive unit. 2. The wheel unit has three wheels attached thereto, and the wheel unit is provided above and below and to the left and right of the bed.
The temporary lifting device according to claim 1, wherein the two guide rails are provided so as to sandwich the guide rails from the left and right, and the wheels of the respective wheel units sandwich the guide rails from three sides. 3. The temporary lifting device according to claim 1, wherein the wheel is a wheel whose outer peripheral surface is wound with hard rubber.