JP2005053637A - Apparatus and method for centering guide rail for cage of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an apparatus and method for centering a guide rail for a cage of an elevator capable of setting at an arbitral position in a hoistway by pressing and centering the guide rail for the cage by using piano wires for centering entrances as a reference. <P>SOLUTION: This device includes the entrance centering piano wires 6, 7 hung down toward the hoistway pit 1 from an upper portion of the of the hoistway and serves as a reference for positioning the entrances, a template 33 to be engaged with the piano wires for centering the entrances to position, and a fixture 18 for centering the guide rail for the cage connected with the template. In this device for positioning the one pair of guide rails for the cage 14, 15 by using the template 33 as a reference, the template 33 is fixed at a bridging bar 16 which can be extended/contracted freely, bridged and fixed at an arbitral position by being pressed at the side wall in the hoistway. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a guide rail centering device for an elevator car and a centering method thereof.

  In a conventional elevator car guide rail centering device, a car guide rail centering piano wire is suspended and centered on the basis thereof (see, for example, Patent Document 1). In addition, as an improved technique, a technique has been proposed in which a centering device is positioned by a receiver fixed to a hoistway (see Japanese Patent Application No. 2003-047750).

Japanese Utility Model Publication No. 60-40537

  In the conventional elevator car guide rail centering device, since the centering is based on the piano wire, it is necessary to suspend a dedicated piano wire. Moreover, since the improved technique described in the prior patent application is positioned by a receiver fixed to the hoistway, it cannot be easily installed at an arbitrary position, and there is a problem in usability.

  The present invention has been made to solve the above-described problems. The purpose of the present invention can be set at an arbitrary position in the hoistway by pressing, and is based on a centering piano wire for landing. The present invention provides an elevator car guide rail centering device and a centering method for centering a car guide rail.

  The elevator car guide rail centering setting reference device according to the present invention is a landing centering piano wire that is suspended from the upper part of the hoistway toward the hoistway pit and serves as a reference for the positioning of the hall, and the centering for the landing Equipped with a template that engages and positions the piano wire, and a car guide rail centering jig connected to the template, and for positioning a pair of car guide rails relative to the template, A template is fixed to an extendable stretch rod that is stretched and fixed at an arbitrary position by being pressed against the road side wall.

  The elevator car guide rail centering method according to the present invention includes a landing centering piano wire that is suspended from the upper part of the hoistway toward the hoistway pit and serves as a reference for the positioning of the landing, and the centering piano wire for the landing. A stencil that is engaged and positioned, a car guide rail centering jig connected to the stencil, and the stencil are fixed and pressed against the hoistway side wall to be stretched and fixed at an arbitrary position. In this type, a pair of car guide rails are positioned with reference to the template, and a landing centering piano wire is suspended from the upper part of the hoistway and its lower end is fixed to a fixed part. Process, hanging the guide rail for the car, fixing the lower end of the car to the car shock absorber base fixed to the pit, and centering the car-side guide rail with the tension bar to which the template is fixed The position of the template is adjusted by engaging the centering piano wire index for the hallway with the centering piano wire for the hallway. And a step of correcting the positioning by confirming the horizontal of the front and rear and the left and right of the template.

  As described above, the present invention hangs down from the upper part of the hoistway toward the hoistway pit, and serves as a reference for the positioning of the hallway. And a guide rail centering jig connected to the template, and positioning the pair of cage guide rails with reference to the template, by being pressed against the side wall of the hoistway Since the template is fixed to the stretchable stretching rod that is stretched and fixed at an arbitrary position, no special tool is required, and only a simple operation is required, and the centering operation at the site is simplified.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing an elevator car guide rail centering device according to Embodiment 1 of the present invention, and FIG. 2 is a centering setting reference for an elevator car guide rail centering device according to Embodiment 1 of the present invention. FIG. 3 is a sectional view taken along line III-III in FIG. 2, FIG. 4 is an exploded perspective view of the main part of FIG. 3, FIG. 5 is an enlarged plan view of the template, and FIG. FIG.
In FIG. 1, a car-side shock absorber table 13 is fixed to an upper surface of a pit 1 of an elevator hoistway by anchor bolts (not shown) fixed to a floor. A pair of car guide rails 14 and 15 are erected on the upper surfaces of both ends of the car-side shock absorber base 13, and a car (not shown) is guided up and down between the guide rails 14 and 15. In the hoistway, there is a landing floor 2 on the lowest floor, a vertical wall 3 on the opening of the landing floor 2, a landing floor 4 on the floor one level above the lowest floor, and a vertical wall 5 on the opening of the landing floor 4. Each is formed, and the same applies to other floors above this. The centering piano wires 6 and 7 for landing, the upper end of which is fixed to a template (not shown) installed at the top (top) of the hoistway, hangs down toward the hoistway pit 1, and the lower part Weights 8 and 9 are respectively attached to the tips. The centering piano wires 6 and 7 for the landing are suspended along the landing floors 2 and 4 of the hoistway, and are fixed by a piano wire fixing member 11 fixed to the hoistway wall below the landing floor 2 on the lowest floor. Has been. The centering piano wires 6 and 7 for the hall serve as the positioning reference for the hall.
A stretchable rod 16 is stretched and attached to an arbitrary position in the horizontal direction between the side walls of the hoistway near the landing floors 2 and 4. A template 33 for engaging and positioning the hallway centering piano wires 6 and 7 is provided in the middle portion of the tension bar 16, and the piano wires 6 and 7 are provided with a piano wire index 17A, The tension bar 16 is installed by aligning 17B. Further, the car guide rail centering jig 18 having a length corresponding to the distance between the car guide rails 14 and 15 is connected to the car guide rails 14 and 15 to determine the position. Further, connecting fittings 19, 20, and 21 are provided between the tension bar 16 and the centering jig 18. The connecting brackets 19, 20, and 21 serve to determine the spacing between the tension bar 16 and the centering jig 18 at a reference dimension. That is, the tension bar 16 is positioned on the basis of the centering piano wires 6 and 7 for the landing, and the car guide rails 14 and 15 are centered by the centering jig 18 and the connecting brackets 19, 20 and 21. Is what you do.

2 to 6, a specific configuration of the centering reference setting device will be described. The strut 16 includes a square pipe 30 having a fixing nut 30a on the upper lower surface, leveling pads 31A and 31B which are attached to both ends of the square pipe 30 and pressed against or separated from the hoistway wall, Handles 32A and 32B are provided at both ends of the pipe 30. When the handle 32A or 32B of the tension bar 16 is turned, the leveling pad 31A or 31B expands and contracts. Therefore, when the leveling pad 31A or 31B is extended, the leveling pads 31A and 31B at both ends of the tension bar 16 are pressed against the side wall of the hoistway to perform landing centering. The template 33 provided on the upper surface of the intermediate portion of the tension rod 16 is provided with a considerably large adjustment hole 33a provided at a position facing the fixing nut 30a of the square pipe 30, and larger than the adjustment hole 33a. The bolts 34A and 34B with levers for fixing the template 33 to the square pipe 30 and the ends of the connecting fittings 19, 20 and 21 are installed upright on the template 33 by interposing the diameter washers 34C in an overlapping manner. It is composed of fixed pin bolts 35A and 35B and piano wire indicators 17A and 17B each having a notch with which the landing centering piano wires 6 and 7 are engaged. When the piano wire indicators 17A and 17B of the template 33 are engaged with the piano wires 6 and 7, the position is adjusted within the range of the adjustment hole 33a larger than the shaft diameter by the bolts 34A and 34B with levers. However, the template 33 can be fastened to a predetermined position of the square pipe 30 by rotating and tightening the bolts 34A and 34B with lever. At this time, the lever-equipped bolts 34A and 34B can be turned by hand without requiring a special tool.
Further, in the centering setting reference device, lifting hooks 37A and 37B made up of a pair of eyebolts are attached to the upper surfaces of both end portions of the square pipe 30 of the strut 16. The lifting hooks 37A and 37B are moved up and down by attaching a lifting rope from an upper winch (not shown). In addition, the template 33 includes a level 39 that is provided on the upper surface of the central portion for viewing the inclination in the left-right direction, and level levels 40A and 40B that are provided on the upper surfaces of both left and right ends for viewing the inclination in the front-back direction. Thus, accurate centering by the centering setting reference device can be realized.

  Next, the guide rail centering method for elevator cars according to the present invention will be described. First, landing centering piano wires 6 and 7 are suspended from the uppermost part (top) of the hoistway, weights 8 and 9 are connected to the lower ends thereof, and the lower ends of the piano wires 6 and 7 are attached to the piano wire fixing member 11. To fix. On the other hand, a plurality of car guide rails 14 and 15 are connected in series and suspended from above, and the lowermost end is fixed to the car-side shock absorber base 13. Next, the car guide rail centering setting reference device including the strut 16, the template 33, the centering jig 18, the connecting brackets 19, 20, 21, etc. is guided by a winch (not shown) at the top of the hoistway. The rails 14 and 15 are centered at a predetermined position, for example, lifted to the lowest floor, the handle 32A or 32B of the tension bar 16 is rotated in the forward direction, and the leveling pads 31A or 31B are extended to extend both ends of the tension bar 16 The leveling pads 31A and 31B are pressed and fixed to the side walls of the hoistway. When the piano wire indicators (notches) 17A, 17B of the template 33 are engaged with the centering piano wires 6, 7 for the hall, the size of the adjustment hole 33a is adjusted by the bolts 34A, 34B with levers. After adjusting and positioning within the range of, tighten. Thereby, the template 33 can be fastened to a predetermined position of the square pipe 30. Here, by using the connecting brackets 19, 20, and 21, the both ends of the centering jig 18 are brought into contact with each other between the car guide rails 14, 15, so that the template 33 and the guide rails 14, 15 are brought into contact with each other. The distance is set to the reference dimension. The distance between the car guide rails 14 and 15 is determined by the length of the centering jig 18. Thereafter, the inclination is corrected while checking the horizontal state of the front and rear and the left and right with the level devices 39, 40A and 40B provided on the upper surface of the template 33. This completes the centering work of the car guide rails 14 and 15 on the landing floor 2 on the lowest floor.

  Next, the handle 32A or 32B of the tension bar 16 is turned in the opposite direction, the leveling pad 31A or 31B is shrunk away from the hoistway side wall, and the guide rail centering setting reference device for the car is moved to the winch (not shown) at the hoistway top. ) To the next predetermined position where the car guide rails 14 and 15 are centered, for example, to the landing floor 4 which is one floor above the lowest floor, and the handle 32A or 32B of the tension bar 16 is rotated in the forward direction again. By extending the leveling pad 31A or 31B, the leveling pads 31A and 31B at both ends of the tension bar 16 are pressed and fixed to the hoistway side wall. Similarly, the car guide rails 14 and 15 are positioned by the car guide rail centering setting reference device. For the other floors, the car guide rails 14 and 15 are positioned in the same manner.

  As described above, according to the present invention, since the guide rail centering setting reference device for the car is fixed to the hoistway side wall by the extension and contraction of the tension rod, no special tool is required, and only the operation by the handwheel operation is sufficient. Work on site becomes easy. Further, a stopper plate with a non-slip can be attached to the contact surface at the tip of the leveling pads 31A and 31B. Also, if the bolts 34A and 34B with levers are loosened, they can move in the left and right and front and rear directions of the template 33 within the range of the large-diameter adjustment hole 33a. It becomes easy and there is an effect that high positioning accuracy is not required. In addition, when the level of the level plate 39, 40A, 40B is viewed and the template 33 is leveled, positioning can be easily performed, and work efficiency is improved. Further, since the car guide rail centering setting reference device can be used for fixing the hoistway at an arbitrary position by the lifting hooks 37A and 37B, it does not require a plurality of workers and has a prevention against dropping. And safety is improved.

It is a perspective view which shows the guide rail centering apparatus for elevator cars in Embodiment 1 of this invention. It is an enlarged plane which shows the centering setting reference | standard apparatus of the guide rail centering apparatus for elevator cars in Embodiment 1 of this invention. It is sectional drawing along the III-III line of FIG. It is a disassembled perspective view of the principal part of FIG. It is an enlarged plan view of a template. It is a disassembled perspective view of the hook for lifting.

Explanation of symbols

1 Pit of hoistway 2, 4 Landing floor,
3, 5 Vertical wall of landing floor opening 6, 7 Centering piano wire for landing 8, 9 Weight 11 Piano wire fixing member 13 Car side shock absorber table 14, 15 Car side guide rail 16 Strut bar 17A, 17B For piano wire Indicator (notch)
18 Car guide rail centering jig 19, 20, 21 Connecting bracket 30 Square pipe 30a Fixing nut 31A, 31B Leveling pad 32A, 32B Handle 33 Template 33a Adjustment hole 34A, 34B Lever bolt 34C Washer 35A, 35B Pin bolt 37A , 37B Lifting hook 39, 40A, 40B Level

Claims (7)

  A centering piano wire that is suspended from the upper part of the hoistway toward the hoistway pit and serves as a reference for the positioning of the hall, a template that engages and positions the centering piano wire for the hall, and the template In an elevator car guide rail centering device that includes a connected car guide rail centering jig and positions a pair of car guide rails based on the template, the elevator car is pressed against a hoistway side wall. A guide rail centering device for an elevator car, characterized in that the template is fixed to a telescopic stretching rod that is stretched and fixed at an arbitrary position.   The template is provided with a notch for the piano wire index for facilitating the engagement between the centering piano wire for the hall and the template, and an adjustment hole for adjusting the fixing position of the template. 2. The guide rail centering device for an elevator car according to claim 1,   An adjustment hole provided in the template for adjusting the fixing position of the template, and a bolt with a lever and a washer for fastening and fixing the template to the tension rod using the adjustment hole are provided. The guide rail centering device for elevator cars according to claim 1.   4. A guide rail centering device for an elevator car according to any one of claims 1 to 3, wherein the mold plate is provided with a level for confirming the front-rear and left-right horizontal.   The elevator car guide rail centering device according to any one of claims 1 to 4, wherein lifting hooks are provided at both ends of the tension bar.   A centering piano wire that is suspended from the upper part of the hoistway toward the hoistway pit and serves as a reference for the positioning of the hall, a template that engages and positions the centering piano wire for the hall, and the template A connected guide rail centering jig for a car, and a telescopic stretching rod that is fixed to an arbitrary position when the template is fixed and pressed against a side wall of the hoistway. For positioning a pair of car guide rails as a reference, a step of hanging a centering piano wire for landing from the upper part of the hoistway and fixing its lower end to a fixed part, and a lower part of the guide rail for car The part is fixed to the car-side shock absorber base fixed to the pit, and the tension bar with the template fixed is lifted to a predetermined position where the car-side guide rail is centered, and the tension bar is extended to the side wall of the hoistway The process of pressing and fixing, the step of engaging the centering piano wire index for the template with the centering piano wire for landing, positioning and adjusting the template, and confirming the front, back, left and right of the template An elevator car guide rail centering installation method characterized by comprising a step of correcting positioning.   After the car guide rail centering operation at the predetermined position is completed, it is lifted to the upper floor away from the hoistway side wall by shrinking the strut bar, and the strut bar is extended again and pressed to the hoistway side wall and fixed. A guide rail centering installation method for an elevator car according to claim 6, comprising a step.

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