JP2011037551A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device which enables the carrying-in and installation operations at site to be efficiently performed in a short time. <P>SOLUTION: This elevator device is formed by unitizing a damper base 1, dampers 15, 16, and guide rails 6 on the lowermost stage which are installed in a pit of the hoistway of an elevator, and a lower frame 9, an emergency stop device 8, and guide shoes 14 which are attached to the lower side of a car when delivered from a factory, and carried into an installation site. The damper base is formed of two L-steels. The car side damper and a weight side damper are temporarily attached to the damper base. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to simplification of installation work for an elevator device and shortening of a construction period.

  Conventionally, as for an elevator apparatus, it is common to assemble a single part at an elevator installation site. However, in recent years, in order to shorten the elevator installation period and to solve the shortage of installation workers, elevator cars and door devices are assembled in the factory in advance and unitized. The method of carrying in and installing at the installation site is widely used.

However, most parts other than the car and the door device are individually transported, loaded and installed as single parts. These single parts are transported in containers.
There are various installation methods for installing elevator parts, and it cannot be generally stated, but in the case of the WOS method, an upper template and a lifting beam are first set at the top of the hoistway and suspended from there. The car side frame (shock absorber stand) is installed at a predetermined position with respect to the lowered swing line, and then, the lowermost car side guide rail is attached to the back plate of the car side frame. At that time, using a special jig, insert and adjust scissors between the guide rail and the back plate so that the distance between the rail tips determined for each property is adjusted (rail centering operation). After that, the rail stands and joints other than the bottom end are carried out, the emergency stop frame (lower frame) is tilted between the rails, and the car floor and the car frame are assembled on it. (For example, see Patent Documents 1 and 2).

JP-A-5-132269 JP-A-6-219664

  However, installation of elevator equipment has a problem that it takes a complicated process and increases installation costs.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to obtain an elevator apparatus capable of efficiently carrying in and installing on-site in a short time.

  The elevator apparatus according to the present invention includes a shock absorber base, a shock absorber, and a lowermost guide rail installed in a pit of an elevator hoistway, and a lower frame, an emergency stop device, and a guide shoe attached under the car. Unitized at the time of shipment and carried to the installation site.

  Since the elevator apparatus according to the present invention is assembled in advance at a factory and unitized, and these are integrally transported and carried to the installation site of the elevator, it is possible to efficiently carry in and install the work in the field in a short time. After carrying in, the WOS method can be entered immediately, and the installation work can be carried out smoothly.

1 is a perspective view of an elevator apparatus according to an embodiment of the present invention. It is a figure explaining a mode that the unit was arranged in the pit of a hoistway. It is a figure which shows a mode that the unit was arrange | positioned on the pit. It is a figure for demonstrating the procedure which installs a buffer and a cab.

Hereinafter, preferred embodiments of an elevator apparatus according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an elevator apparatus according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a state in which the units are arranged in the pits of the hoistway.
An elevator apparatus according to an embodiment of the present invention includes a shock absorber base 1 installed in a pit of an elevator hoistway, a car-side shock absorber 15 fixed to the shock absorber base 1, and a lower frame on which an elevator car floor 24 is placed. 9. The lowermost guide rail 6, the guide shoe 14, the emergency stop device 8, and the weight side shock absorber 16 constituting a part of the guide rail for guiding the elevator car room 25 to be raised and lowered are unitized and installed at the factory. Transported to the site

The shock absorber stand 1 includes two high-rigidity L-shaped steels 2 in parallel in the longitudinal direction, both end flat plates 4 and a central flat plate 3 between the two parallel L-shaped steels 2, and both ends of the L-shaped steel 2. And a back plate 5 extending upward.
The car-side shock absorber 15 and the weight-side shock absorber 16 are injected with a normal amount of oil determined in advance at the time of shipment from the factory.
The lower frame 9 is U-shaped steel that protrudes downward, and functions as a strength member of the car floor 24.
The emergency stop device 8 is provided at both ends of the lower frame 9 and operates when the car room 25 descends at an overspeed exceeding a predetermined value.

  In this transporting unit, the car side shock absorber 15 and the weight side shock absorber 16 are fixed to the shock absorber base 1, the lower frame support base 7 is fixed to the shock absorber base 1, and the lower frame support base 7 is fixed to the lower frame 9. Are fixed to both ends of the lower frame 9, the guide plate 14 is fixed to the lower frame 9, and the guide shoe 14 is fixed to the lower frame 9 and guides the vertical movement of the lower frame 9 relative to the lowermost guide rail 6. The rail holder 12 is fixed to the rail holder 13, the lowermost guide rail 6 is held by the rail clip 13 provided on the rail holder 12, and the bracket 10 is fixed to the lower frame 9.

The lower frame support 7 is installed below the car-side shock absorber 15 at the elevator installation site, and is used for temporarily fixing the car-side shock absorber 15 to a predetermined height. The flat plate material is welded.
In the upper part of the lowermost guide rail 6, a hole connected to the remaining guide rail that is lowered from above is formed. A spacer 17 is placed on the flat plate 4 at both ends, and the lower end of the lowermost guide rail 6 is on the spacer 17. The lowermost guide rail 6 aligned in the vertical direction in this way is fixed by the rail clip 13 of the rail holder 12 and the rail clip 18 of the back plate 5.
The connecting plate 11 is provided with holes for bolting the pillars of the car frame.
A rail holder 12 is fastened to the connecting plate 11 to prevent the lowermost guide rail 6 from falling during transportation.

  The bracket 10 is L-shaped, and a hole for suspension is provided in the center, and an elongated hole is provided so that it can be suspended at one point at the center of gravity of the unit. Adjust the left and right mounting positions

Also, at the elevator installation site, the height of the lowermost guide rail 6 is adjusted by inserting / removing the spacer 17. In order to insert / remove the spacer 17, the rail clip 18 is loosened and the lowermost guide rail 6 is raised once. You have to lift it up. However, when the rail clip 18 is loosened, the position dimension adjusted at the factory is shifted. Therefore, by mounting and positioning the back plate 5 of the shock absorber base 1 so that the heads of the bolts 19 are in contact with the side surface of the lowermost guide rail 6 on each side, the lowermost guide is installed on the elevator installation site. Even after the rail 6 is removed and the height is adjusted, it can be easily and accurately returned to the position set at the factory by reattaching it to the bolt 19.
Although a plurality of inexpensive bolts 19 are used for positioning the lowermost guide rail 6, a groove for fitting a dedicated pin and rail may be provided in the back plate 5.

Next, a procedure for bringing the above unit into the elevator installation site and assembling it will be described.
First, the reference position of the pit is marked in advance by swinging down, and the unit 30 is installed at the reference position of the pitch.
Next, a piece of guide rail (not shown) is lowered from above the lowermost guide rail 6, fixed by a rail bracket (not shown), and the guide rails are stacked by repeating them.
Next, the car frame upper frame 31 and the car frame column 32 which are unitized and carried are lowered from above, and the car frame column 32 is fitted into the connecting plate 11 and bolted.
Next, the car floor 24 is placed on the lower frame 9 and fixed with bolts.
Next, the diagonal retainer 33 is attached between the car frame column 32 and the car floor 24 to stabilize the car floor 24 horizontally.

Next, the car room 25 is placed on the car floor 24 and fixed.
Next, a car door closing device (not shown) and the car door 26 are assembled.
Next, the counterweight 20 and the car frame are connected by a hoisting rope via a hoisting machine (not shown) and a deflecting wheel (not shown).
Next, the lower frame support 7 and the rail holder 12 are removed, and the car room 25 is raised to the landing position.
Next, the car room 25 is temporarily traveled, is landed on the top floor, and the weight side runby is adjusted. At this time, if the car can be driven slowly, the car is moved to the top floor, and the run-by of the weight side pit is adjusted by the adjusting screw of the rope shirt and the buffer material of the counterweight of the counterweight.
This completes the general installation of the pit and the car.

Since the elevator apparatus according to the present invention is assembled in advance at a factory and unitized, and these are integrally transported and carried to an elevator installation site, the on-site delivery and installation work can be performed efficiently and in a short time. In addition, the WOS method can be started immediately after the present equipment is carried in, and the installation work can proceed smoothly.
Until now, assembly and adjustment of each part were carried out in a narrow hoistway, but it is possible to work efficiently and safely using dedicated tools, jigs, cranes, etc. in a factory that can secure a sufficient work space. Become. In addition, it is possible to produce a product of good quality.

In addition, it is possible to collect several properties and assemble in a flow-oriented manner, thereby reducing costs.
Conventionally, a transport container has been used for each single part. However, by using this pre-assembly structure, the number of transport containers can be reduced to one, and cost can be reduced. Moreover, it is only necessary to carry in from the transport truck to the hoistway in the building once.

  Further, the lower frame 9 is fixed to the shock absorber base 1 at the center by the lower frame support base 7, and the lowermost guide rail 6 is held by a connecting plate for fixing the back plate of the gantry and the vertical column of the car of the lower frame. This structure enables integrated transportation and integrated loading.

Moreover, since the shock absorber stand 1 is composed of two L-shaped steels, it is cheaper and can secure high rigidity as compared with a thin plate bending structure.
In addition, since the car-side shock absorber 15 and the weight-side shock absorber 16 are also temporarily attached to the shock absorber base 1, the number of unitized parts is further increased, the transportation / loading efficiency is increased, and the trouble of searching for the shock absorber in the field can be saved.

  At present, considering the maximum dimensional tolerance of the inner diameter of the pipe that constitutes the shock absorber, and considering the possibility of spilling a small amount during injection, the shock absorber hydraulic oil is shipped separately in a can, Injecting. However, with this configuration, only the required amount can be injected from large cans (drums, etc.), making it possible to dispense with small cans for on-site shipping, and to discard excess oil locally. In addition, since there is no oil injection work on site, there is a merit that oil spills and pits of the customer's building will not be soiled.

  In addition, by adjusting the bracket's suspension hole to the center of gravity position at the factory, it is possible to carry in safely at the site. Further, by being able to suspend one point, when the hoistway entrance or the hoistway interior is narrow, the entire unit can be tilted three-dimensionally and carried into the hoistway.

  DESCRIPTION OF SYMBOLS 1 Shock absorber stand, 2 L-shaped steel, 3 Center plate, 4 Both end plate, 5 Back plate, 6 Bottom guide rail, 7 Lower frame support stand, 8 Emergency stop device, 9 Lower frame, 10 Bracket, 11 Connecting plate , 12 Rail retainer, 13 Rail clip, 14 Guide shoe, 15 Car side shock absorber, 16 Weight side shock absorber, 17 Spacer, 18 Rail clip, 19 bolt, 24 Car floor, 25 Car room, 26 Car door, 30 Unit, 31 car frame upper frame, 32 car frame column.

Claims (6)

  The shock absorber base, shock absorber, and bottom guide rail installed in the elevator hoistway pit, and the lower frame, emergency stop device, and guide shoe mounted under the car are unitized at the time of shipment from the factory. An elevator apparatus that is carried into a car.   2. The elevator apparatus according to claim 1, wherein the shock absorber base is composed of two L-shaped steels.   The elevator apparatus according to claim 1 or 2, wherein a car-side shock absorber and a weight-side shock absorber are temporarily attached to the shock absorber base.   The elevator apparatus according to any one of claims 1 to 3, wherein a normal amount of oil is injected into the shock absorber in advance at a factory.   The elevator apparatus according to any one of claims 1 to 4, wherein in the shock absorber base, the guide rail is positioned by the heads of a plurality of hexagon bolts.   The elevator apparatus according to any one of claims 1 to 5, further comprising: a bracket capable of adjusting a mounting position in the front, rear, left, and right directions by a long hole so that the unit can be suspended at a center of gravity of the unitized apparatus.

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