JPH06322993A - Expansion machine beam of mobile machine room type elevator - Google Patents

Abstract

PURPOSE:To cut off construction manhours and enhance safety and reduce construction period and construction cost as well by installing an outrigger extended and engaged with a template to be installed to an elevator to both ends of a beam main body. CONSTITUTION:A beam main body 22, which loads a mobile machine room 21, is installed to the top and the length of the beam main body 22 is made shorter than the width of an elevator shaft. Then, the beam main body 22 is moved upward in parallel in the elevator shaft; and outrigger 23 extended and engaged with a template installed at proper spots inside the elevator is installed to both ends of the beam main body 22. Every outrigger 23 is adapted to proceed, and engaged with each template, thereby holding the mobile machine room 21 at its position and repeating this operation one after another in conformity with the progress in the construction of a skeleton. Then, the mobile machine room 21 is moved upward, thereby extending gradually the hoist range of a construction elevator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic machine beam for a mobile machine room in a permanently installed mobile machine room elevator used for construction work.

[0002]

2. Description of the Related Art In recent years, the demand for skyscrapers has been rapidly increasing with the redevelopment of cities. The biggest problem with this skyscraper architecture is
It is how many workers and small materials can be transported to the target upper floor in a short time according to the progress of the construction work, and this has a great influence on the shortening of the construction period of the building. for that reason,
Conventionally, a mobile machine room-type elevator for construction work has been used, which provides elevator service from the low-rise stage, moves the machine room sequentially upward as the building's steel frame assembly progresses, and services the upper floors. There is.

The elevator shaft in this case is shown in FIG.
As shown in i) Lower layer A: Construction elevator part ii) Middle layer B: Elevator construction part in completed elevator shaft iii) Upper layer C: Frame steel frame construction and ALC version (cellular concrete) It will be constructed in three parts, the elevator shaft installation work part, etc., and it will be gradually built upward while maintaining this posture.

In the lower layer portion A, the steel frame structure (only the steel beam 1 is shown in FIG. 7) and the ALC plate 2 (hereinafter referred to as A
After the fireproof coating 3 on the peripheral wall and the steel frame exposed in the elevator shaft by the LC version) and various wiring work are completed and the elevator shaft in that part is completed, it is for a car A guide rail 6, a counterweight guide rail 7 and a landing doorway 8 are attached, and further elevator products such as a car 4, a counterweight 5, and a buffer 9 are attached. In addition, on the beams and slabs of the frame on the predetermined floor above it, ALC
An appropriate number of beam receiving through holes that are paired in the front and rear or left and right at the bottom of the plate 2.
10 are pierced, a proper number of machine beams 11 are erected at their tip portions so as to penetrate through the beam receiving through holes 10, and a hoisting machine 12 and a control board 13 are installed on these machine beams. ,
These are covered with a sheet 14 or an aluminum plate as a measure against rainwater. The machine beam 11 usually has a required size H
Shaped steel is used almost as it is. Thus, the car 4 and the counterweight 5 are connected to each other via the main rope 15 appropriately wound around the hoisting machine 12, and are configured to move up and down as an elevator. The hoisting machine
12 and the control panel 13 and the like form a temporary machine room, and a horizontal curing 16 is provided just above the machine room.

In the intermediate layer portion B, after the steel frame beam 1, the peripheral wall by the ALC plate 2 and the fireproof coating 3 on the steel frame surface exposed in the elevator shaft at this portion are completed,
Elevator rails6 inside elevator shaft
7, the doorway 8 etc. are attached, wiring work for pushbutton switches and other required electric parts is done, and the elevator shaft is completed.

In the upper layer C, after the steel frame assembly work is completed, the ALC plate 2 is installed between the steel beam 1 above and below each floor, and the peripheral wall of the elevator shaft is formed. Further, the fire-resistant coating 3 is sprayed on the steel frame surface exposed in the elevator shaft, and the elevator shaft in that portion is constructed. A rain curing roof 17 that covers the entire elevator shaft, which will be described below, is temporarily installed in the upper layer portion where the elevator shaft is completed.

At the stage when the construction work of the middle layer B is completed,
The elevating range of the construction elevator, which was elevated only in the lower layer portion A, is expanded upward to the intermediate layer portion B. At this time, by using a tower crane or the like, the roof 17 for rain curing and the horizontal curing 16 are not removed once, and the hoisting machine 12 and the control panel 13 are lifted and moved to the upper floor,
Machine beam 11 is extracted and relocated to the upper floor,
The hoisting machine 12 and the control panel 13 are installed again on the machine beam 11, the machine room is moved to the upper floor, and the rain curing roof 17 and the horizontal curing 16 which have been removed are mounted in proper places again. These operations are sequentially repeated in accordance with the progress of the skeleton, the machine room is moved upward, and the elevating range of the construction elevator is sequentially expanded upward.

[0008]

However, it is not easy to attach, detach, and lift the machine beam, which is dangerous and troublesome. The present invention is intended to solve such a problem.

[0009]

To achieve the above object, the present invention provides a beam main body on which a moving machine room is placed, and the beam main body has a length shorter than the width in an elevator shaft. Outriggers are formed so that they can move upward in the elevator shaft, and both ends of the beam body are equipped with mechanically movable outriggers that extend and engage with beam receivers provided at appropriate positions of the elevator shaft. It is characterized by having done.

[0010]

With the above-mentioned structure, when using it, a plurality of them are arranged in parallel at appropriate intervals. These telescopic machine beams are preliminarily mounted on the beam main body such as a hoisting machine and a control board. Place and fix the moving machine room consisting of. Then, with all the outriggers retracted, they are inserted into the partially completed elevator shaft of the lower layer A together with the moving machine room by a tower crane, etc., and all outriggers are put in place. It is advanced to engage the beam bridges respectively, thus holding the moving machine room in that position. Next, when the construction work of the middle layer B is completed, the moving machine room is relocated to the upper floor, and the elevator for construction (dedicated to construction or both construction and main installation) was moved up and down only in the lower layer A. Range is the middle layer part B
However, in this case, once support all the outriggers together with the moving machine room using tower cranes etc., retract all outriggers, then move them to the upper floor, and advance all outriggers again as before. To engage the beam bridges respectively and hold the moving machine room in that position. Repeat this work in sequence as the body progresses,
The mobile machine room is moved upward, and the elevating range of the construction elevator is gradually expanded upward. If the construction elevator also serves as the main construction elevator, all outriggers that have advanced will be finally fixed by welding or the like.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an example of the implementation of the invention.
In this case, as shown in FIGS. 1 to 4, two beam main bodies 22 made of steel are provided on the upper surface before and after the moving machine room 21 is mounted, and the length of each beam main body is set to the elevator shaft (a).
The width is made smaller than the inner width so as to be movable upward in the elevator shaft, and both ends of each beam main body 22 are extendedly engaged with beam receivers provided at appropriate positions of the elevator shaft. Each steel outrigger 23 is equipped with an air cylinder 24 so as to be mechanically movable back and forth.
Each beam main body 22 has a pair of pedestals for receiving a base frame 28 of the moving machine room 21 on the upper surface of the middle portion while providing a reinforcing flange 27 or the like at an appropriate position on the outer circumference of a square tube 26 having a square cross section.
25 are fixed, and hanging rings 29 are fixed on the upper surfaces of both ends. Each outrigger 23 is formed by welding a reinforcing plate 30 to the front end, the rear end, and the intermediate portion of the H-shaped steel to have an appropriate size,
Further, in the state of advancing, a pin hole 31 communicating with the beam body 22 and penetrating therethrough is bored in the middle portion to form an outrigger fixing pin.
The 32 is inserted and removed freely to maintain stable advancement. Each air cylinder 24 is installed in the middle part of each beam main body 22 corresponding to each outrigger 23,
A support plate 33 in which each base end is erected in the center of the beam body.
And the tip of the plunger 34 is mechanically connected to the end of each outrigger 23.
Further, each air cylinder 24 is connected to a common air compressor 35 mounted in the moving machine room 21 via an air hose 41, and all of them are operated at once by the air compressor. In the figure, 42 is a support bar for an air hose.

[0012] With such a structure, in use, in two telescopic machine beams in the front and rear, which are parallel to each other, the moving machine room 21 is mounted on the base frame 28 on the four pedestals 25 of both beam bodies 22 for convenience. After mounting and fixing, all the outriggers 23 are pulled out of the outrigger fixing pins 32 and retracted by the air cylinder 24. Both beam bodies
22 Convenience Four hanging wheels 29 are used to hang sling wires, and they are lifted up together with the moving machine room 21 by a tower crane or the like, and inserted into the elevator shaft in the lower layer A of the partially completed building frame, As shown in,
All the outriggers 23 are advanced by the air cylinder 24 and inserted into the beam receiving through holes 10 (see FIG. 7) formed in the wall of the elevator shaft (a), respectively, and the outrigger fixing pins 32 are again pin holes. The mobile machine room 21 is held in that position by being inserted into and erected 31.
Next, when the construction work on the middle layer B is completed, the moving machine room 21 is rearranged to the upper floor, and the elevator has been moved up and down only in the lower layer A (construction-only or construction-main construction) elevator The elevating range of is extended to the intermediate layer portion B. In this case, in the same manner as the previous time, hang it together with the moving machine room 21 with a tower crane, etc., temporarily support it at that position, pull out the outrigger fixing pin 32, and retract all outriggers 23 with the air cylinder 24, then continue. And move it to the upper floor, and again all the outriggers 23 are advanced and inserted into the beam receiving through holes 10 again as before, and the outrigger fixing pins 32 are inserted again into the pin holes 31 to erection, and the moving machine Hold chamber 21 in its position. This work is repeated according to the progress of the skeleton, the moving machine room 21 is sequentially moved upward, and the elevating range of the construction elevator is expanded upward one after another.

5 and 6 show another example of the beam receiver. In the case of FIG. 5, the above elevator shaft (a)
The beam receiving through hole 10 (see FIG. 7) in the wall of the building is removed, and the steel frame 36 for receiving the beam is attached to the steel beam 1 of the building frame. In addition,
Although not shown, the pedestal 36 and the steel beam 1 need a fireproof coating. In the case of FIG. 6, the elevator shaft (a)
The beam receiving through hole 10 (see FIG. 7) in the wall of the above is used, and a precast concrete slab 37 in which a beam receiving stand 38 is integrally formed as a wall material is used. In this case, since the precast concrete slab 37 is located inside the steel beam 1 and covers the steel beam 1, the steel beam 1 does not need a fireproof coating. In addition,
Although not shown, the pedestals 36 and 38 for receiving the beams are equipped with the outrigger brackets, and the bolt holes are formed by communicating the outrigger brackets and the outriggers 23 with each other. Stability can be secured by fastening with nuts. In the figure, 39 and 40 are fasteners. When using the construction elevator as the main elevator,
Finally, all the outriggers 23 that have advanced are fixed to the steel frame of the building frame by welding or the like. In this case, the air cylinder 24 or the like may be removed and diverted.

[0014]

According to the present invention, the beam main body on which the moving machine room is placed is shorter than the width in the elevator shaft and can be moved in parallel upward in the elevator shaft. Both ends are equipped with outriggers that mechanically move forward and backward to extend and engage with beam receivers installed at appropriate places on the elevator shaft. Since the moving machine room consisting of the hoisting machine and the control panel can be mounted and fixed on top of it, all the outriggers can be easily retracted inside the elevator shaft together with the moving machine room with a tower crane etc. It is possible to insert all the outriggers in a predetermined position and easily engage them with the beam receivers respectively. -By using a crane, etc., and by mechanically moving all outriggers appropriately, it is possible to easily relocate to the upper floor, thus eliminating manual insertion and removal work and climbing work of the beam itself during climbing. Therefore, dangerous work can be eliminated, the number of work steps can be reduced, the work period can be shortened, and labor saving and cost reduction can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment relating to a telescopic machine beam of a mobile machine room type elevator according to the present invention.

FIG. 2 is a side view of the example.

FIG. 3 is a front view of the same example.

FIG. 4 is an enlarged cutaway front view of a main part showing a usage state of the same example.

FIG. 5 is an enlarged cutaway front view of a main part showing another usage state of the same example.

FIG. 6 is an enlarged cutaway front view of a main part showing still another usage state of the same example.

FIG. 7 is a cutaway front view showing a conventional construction elevator.

[Explanation of symbols]

(A)… Elevator shaft 21… Moving machine room 22… Beam body 23… Outrigger 24… Air cylinder 25… Pedestal 26… Square tube 27… Flange 28… Base frame 29… Suspension ring 30… Reinforcement plate 31… Pin hole 32 … Outrigger fixing pin 33… Support plate 34… Plunger 35… Air compressor 36… Receiving stand 37… Precast concrete plate 38… Receiving stand 39… Fastener 40… Fastener 41… Air hose 42… Air hose support bar A… Lower layer B… Middle layer C ... Upper layer 1 ... Steel beam 2 ... ALC plate 3 ... Fireproof coating 4 ... Car 5 ... Balancing weight 6 ... Car guide rail 7 ... Balancing guide rail 8 ... Landing doorway 9 ... Buffer 10 ... Beam receiving through hole 11… Machine beam 12… Hoisting machine 13… Control panel 15… Main rope 16… Horizontal curing 17… Rain curing roof

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsukasa Mouchi 4-4-3 Midori, Sumida-ku, Tokyo Yoshinaga Machinery Co., Ltd.

Claims (1)

[Claims] 1. A beam main body on which a moving machine room is mounted is provided on an upper surface, and the length of the beam main body is made shorter than the width in the elevator shaft so that the beam main body can be moved in parallel upward in the elevator shaft. The expansion and contraction of a moving machine room type elevator characterized in that both ends of the beam main body are mechanically equipped with outriggers that extend and engage with beam receivers provided at appropriate positions of the elevator shaft. Machine beam.