JPH0597348A - Installation device for elevator - Google Patents

Abstract

PURPOSE:To carry out the centering and fixation works of a guide rail in a safe attitude by stopping a working floor at an arbitrary position when installation is carried out by stopping the working floor which rises and lowers in the elevator passage of an elevator. CONSTITUTION:A working floor 5 is raised and lowered by a main cable joined with one edge of the working floor 5, and a supporting fitting 21 which shifts to the advance/reetreat position is installed at the upper part of the working floor 5. When the working floor 5 is raised and lowered, the supporting fitting 21 is separated from a side wall 1a, and when the working floor 5 stops at an arbitrary position, the supporting fitting 21 is pressed to the side wall 12a, and the working floor 5 is supported. At this time, the reaction force of a roller guide 7 which acts on a guide rail 2A is reduced, and the turning-down of the guide rail 2A is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device used when installing an elevator in a hoistway.

[0002]

2. Description of the Related Art FIG. 7 is a vertical cross-sectional view of a hoistway showing a conventional elevator installation apparatus disclosed in, for example, Japanese Patent Laid-Open No. 64-2985.

In the figure, (1) is a hoistway, (2A) and (2B) are guide rails that are erected upright along the side walls of the hoistway (1) and are connected by a connecting plate (2C). 2A) is fixed to the hoistway (1) by rail brackets (3A) and (3B). (4) is a mount for supporting the lower end of the guide rail (2A) provided on the bottom of the hoistway (1), and (5) is a work floor arranged with respect to the guide rail (2A).

The lower and upper roller guides (6) and (7) are attached to the lower and upper portions of the work floor (5) and contact the guide rails (2A) and (2B) from opposite sides, and (8) is A hydraulic jack installed in the hoistway (1) and fixed to the hoistway (1) by a bracket (9), (10) a pulley attached to the upper end of the hydraulic jack (8), and (11) a pulley (10). ), One end of which is connected to the fixed portion of the hydraulic jack (8) and the other end of which is connected to the hanging point Y on one side of the work floor (5), and (12) is the work floor (5 ) Is a car frame, and is composed of a horizontally arranged upper beam (12a) and a vertically arranged vertical column (12b) having a U-shaped cross section.

Reference numeral (13) is a holding roller attached to the bottom of the U-shape of the vertical column (12b) of the work floor (5), which is arranged between the lower and upper roller guides (6) and (7). The distance L from the roller guide (6) is set to be substantially equal to the distance between the rail brackets (3A) and (3B). Reference numeral (14) is an adjustment bolt that is screwed into the side of the U-shape of the vertical column (12b) and has its tip abutting the side surface of the guide rail (2A).

The conventional elevator installation device is constructed as described above and installed by the following procedure. First, a hanging hook (not shown) is attached to the top of the hoistway (1), and by using this, the guide rails (2B) other than the lowermost guide rail (2A) are connected to each other and lifted.
Next, using a reference line (not shown) such as a piano wire, install the mounting base (4) at a predetermined position on the bottom of the hoistway (1), and place the lower end of the guide rail (2A) at the bottom here. Fix it. And
The positions of the rail brackets (3A) and (3B) are determined from the lower end on the reference line, and the lowermost guide rail (2A) is fixed to a predetermined position on the side wall of the hoistway (1).

Next, the lowest guide rail (2A) on the lowest floor
After assembling the work floor (5) that engages with the hydraulic jack (8)
Is installed and fixed to the side wall of the hoistway (1) with the bracket (9). Then, one end of the main rope (11) is connected to the fixed portion of the hydraulic jack (8), and the other end is connected to the hanging point Y on one side of the work floor (5) via the pulley (10). Further, a power unit of the hydraulic jack and hydraulic piping (neither is shown) are installed by the time the above work is completed.

Next, the adjusting bolt (14) is screwed into the vertical column (12b) from the work floor (5), the tip thereof is brought into contact with the side edge of the guide rail (2A), and this is pressed to press the upper roller. Guide (7)
The holding roller (13) is attached to the vertical column (12b) in a state where the reaction force P is not applied to. Here, if the adjusting bolt (14) is loosened, the reaction force P is supported by the holding roller (13).

After the above work is completed, the hydraulic jack (8)
After laying the motion cable by injecting hydraulic oil into the etc., operate the hydraulic jack (8) upwards to raise the work floor (5) and move the guide rails (2A) (2B) ... The operation of pulling out, fixing the rail bracket to the hoistway (1) and fixing the guide rail to the rail bracket (hereinafter simply referred to as fixing work) is repeated.

[0010]

In the conventional elevator installation device as described above, the main rope (11) is connected to the hanging point Y on one side of the work floor (5) to allow the work floor (5) to move. The tipping moment is supported by the guide rail (2A) via the roller guide (6) and the holding roller (13). Therefore, the holding roller (1
3) Stop the work floor (5) at a position above the rail bracket (3B) and perform centering and fixing work of the guide rail (2A). )
There is a problem that the guide rail (2A) is displaced from the position of the reference line by being bent by the reaction force of.

For the above reason, the position where the work floor (5) is stopped and the guide rail (2A) is centered and fixed is when the holding roller (13) is lower than the uppermost rail bracket (3B). , Or at the same position. As a result, the position at which the work floor (5) is stopped is determined by the top rail bracket installed during installation, so
Centering and fixing work of the guide rail (2B) above (5) is restricted, and it is inevitable to work in a dangerous posture.

If the work floor (5) is stopped while the holding roller (13) is located above the uppermost rail bracket (3B) and the above work is performed, the guide rail (2A) is used as a rail reference. It is necessary to correct the position of the line to perform the above work, and there is a problem that a considerable amount of labor is required for the work (the same applies to the guide rails (2B) ...).

The present invention has been made in order to solve the above problems, and the position for stopping the work floor is not limited,
It is an object of the present invention to provide an elevator installation device that allows the guide rail to be centered and fixed at all times in a safe posture.

[0014]

The elevator installation apparatus according to the first aspect of the present invention is located on the upper part of the work floor when it is in the retracted state, away from the side wall of the hoistway, and when it is in the advanced state, the above. A support tool for pressing the side wall to support the work floor is provided.

Further, an elevator installation apparatus according to a second aspect of the present invention is the elevator installation apparatus according to the first aspect of the present invention, wherein when the support tool is detected to be in a forward state, the work floor is prevented from moving up and down. Is.

[0016]

In the first aspect of the present invention, since the movable support is provided on the upper part of the work floor to support the work floor on the side wall of the hoistway, the overturning moment of the work floor is mediated by the support. Is transmitted to the side wall.

In the second aspect of the invention, when the support tool supports the work floor, the work tool is prevented from moving up and down, so that the support tool collides with the protrusion in the hoistway. There is no such thing.

[0018]

【Example】

Example 1. 1 to 3 are views showing an embodiment of the first invention of the present invention, FIG. 1 is a vertical cross-sectional view of a hoistway, and FIG. 2 is II of FIG.
FIG. 3 is a sectional view taken along line II, and FIG. 3 is an enlarged side view of the supporting member.

In the figure, (7a) is a guide roller mounted on the vertical column (12b), which is disposed so as to face the upper roller guide (7), and guide rails (2A) and (2B) are narrowly attached. Reference numeral (21) is a support installed on the upper part of the work floor (5), which includes a fixing portion (22) having a screw hole and a ball (2) screwed into this screw hole.
From the screw rod (24) to which 3) is fixed, the support metal (25) in which more than half of the balls (23) are rotatably fitted, and the handle (26) attached to the other end of the screw rod (24). Is becoming And
The support tool (21) has a bolt (2) at the front of the upper beam (12a) of the work floor (5) so that the support metal (25) faces the side wall (1a) of the hoistway (1).
It is fixed in 7).

In the elevator installation device configured as described above, the work floor (5) is stopped at an arbitrary position, and the screw rod (24) of the support tool (21) is operated by operating the handle (26). When rotated, the support bar (25) advances and this causes the hoistway.
When the side wall (1a) of (1) is pressed, the reaction force P of the upper roller guide (7) acting on the guide rail (2A) is transmitted to the side wall (1a) via the support metal (25).

In this state, if the moving amount of the screw rod (24) is adjusted, the guide rail (2A) is adjusted according to the moving amount of the screw rod (24).
It is possible to adjust the tilt of the guide rail, and it is possible to perform fine centering adjustment for aligning the guide rail (2A) with the reference line. Guide rail (2A), after centering, rail bracket (3A)
Fix it to the side wall (1a) with (3B).

Thereafter, like the conventional device, the hydraulic jack is used.
When the work floor (5) is moved up and down by (8), the support metal (25) is moved away from the side wall (1a) and the work floor (5) is moved up and down. In this way, by repeating the centering and fixing work of the guide rails (2A) (2B) ..., the work floor (5) can be placed at any position regardless of the spacing between the rail brackets (3A) (3B). Since the guide rails (2A) (2B) ... can be stopped and centered and adjusted, work in a safe posture can proceed safely and smoothly.

Example 2. 4 to 6 show a second embodiment of the present invention.
FIG. 4 is an enlarged view of an IV portion of FIG. 1 showing a forward state of the support tool, FIG. 5 is an equivalent view of FIG. 4 showing the same retracted state, and FIG. 6 is an electric circuit diagram. .. Note that FIG. 3 is also used in this embodiment.

In the figure, (28) is a screw rod (2) of the support (21).
A switch that opens when (4) is in the forward state, (29) is connected to the DC power supply (+) (-) via the switch (28), and allows the work floor (5) to move up and down when energized, Working Bed When Deactivated (5)
It is a control circuit that prevents the vertical movement of the.

That is, as shown in FIG. 4, when the screw rod (24) of the support (21) is in the forward state, the switch (28) is opened, the control circuit (29) is deactivated, and the work floor ( Lifting of 5) is blocked. As a result, the support metal (25) does not collide with the protrusion in the hoistway (1). Also, as shown in FIG.
When the screw rod (24) is in the retracted state, the switch (28) is closed, the control circuit (29) is energized, and the work floor (5) can be moved up and down.

[0026]

As described above, according to the first aspect of the present invention, when the upper part of the work floor is in the retracted state, the work floor is pushed away from the side wall of the hoistway, and in the forward state, the side wall is pressed to push the work floor. Since a support tool is provided to support the work floor, the overturning moment of the work floor is transmitted to the side wall through the support tool, and the reaction force of the guide element does not act on the guide rail. Can be supported in position. As a result, there is an effect that the centering and fixing work of the guide rail can always be performed accurately and easily in a safe posture.

In the second aspect of the invention, when it is detected that the support tool is in the forward movement state, the work floor is prevented from moving up and down, so that the support tool collides with the protrusion in the hoistway. There is no need to do so, and there is an effect that the work floor can be safely driven.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a hoistway showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged side view of the support shown in FIG.

FIG. 4 is an enlarged view of an IV portion of FIG. 1, showing a forward state of the support tool according to the second embodiment of the present invention.

FIG. 5 is a view showing a retracted state of the support tool of FIG.

FIG. 6 is an electric circuit diagram of FIGS. 4 and 5;

FIG. 7 is a vertical cross-sectional view of a hoistway showing a conventional elevator installation device.

[Explanation of reference numerals] 1 hoistway 1a side walls of hoistway 2A, 2B guide rail 5 working floor 6 lower roller guide 7 upper roller guide 8 drive device (hydraulic jack) 11 main rope 21 support tool 28 switch 29 control circuit

Claims (2)

[Claims] 1. A guide rail standing upright along a side wall of a hoistway, a work floor engaged with and guided by the guide rail, and a main rope connected to one side of the work floor. In the installation device having a drive device for elevating and lowering the work floor, the work device is installed at an upper part of the work floor and is separated from the side wall of the hoistway in the retracted state, and is pressed in the forward direction when the side wall is pressed. An elevator installation device comprising a support tool for supporting the work floor. 2. A switch for detecting that the support tool is in the forward movement state, and a control circuit for preventing the work floor from being lifted when the switch detects the forward movement state of the support tool. Item 1. An elevator installation device according to Item 1.