JP2010064803A - Guide rail fixing device for elevator - Google Patents

Abstract

An elevator guide rail fixing device capable of more reliably fixing a guide rail in a hoistway is provided.
Each rail bracket 4 is provided with elongated holes 4a, 4b. The long holes 4a and 4b penetrate each rail bracket 4. The major axis direction of the cross section of the long holes 4a and 4b is parallel to the width direction of the first and second guide rails 5 and the like. The long holes 4a and 4b are composed of a bolt penetrating portion and a detent portion. The bolt penetrating portion and the rotation preventing portion are configured in half each in the major axis direction of the cross section of the elongated holes 4a and 4b.
[Selection] Figure 2

Description

  The present invention relates to an elevator guide rail fixing device for fixing a guide rail for guiding the raising and lowering of a car and a counterweight in a hoistway.

  In a conventional elevator guide rail fixing device, a guide rail is sandwiched between a rail bracket and a plurality of rail clips, and the guide rail is fixed to the rail bracket by tightening bolts and nuts (for example, patents). Reference 1).

JP 2005-23190 A

  In the conventional elevator guide rail fixing device configured as described above, since the end of the rail clip is in contact with the flat portion of the rail bracket, the rail clip is rotated together by tightening the bolt and nut. Therefore, it was difficult to securely fix the guide rail in the hoistway.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator guide rail fixing device that can more reliably fix a guide rail in a hoistway.

  An elevator guide rail fixing device according to the present invention includes a rail bracket provided on a hoistway wall, a rail clip sandwiching the guide rail between the rail bracket, a rail clip, and a bolt passed through the rail bracket, And a nut screwed to the bolt, and the rail bracket is provided with a rotation preventing portion for restricting the rotation of the rail clip by tightening the bolt and the nut.

  In the elevator guide rail fixing device according to the present invention, since the rail bracket is provided with a detent for restricting the rotation of the rail clip by tightening the bolt and nut, the rail clip is attached to the guide rail when the bolt and nut are tightened. Therefore, the guide rail can be more reliably fixed in the hoistway.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a main part of an elevator according to Embodiment 1 of the present invention. A car (not shown) and a counterweight 1 are suspended in a hoistway 3 by a plurality of ropes 2. The rope 2 is wound around a drive sheave of a hoisting machine (not shown). The car and the counterweight 1 are moved up and down in the hoistway 3 by a hoisting machine.

  A plurality of rail brackets 4 having an L-shaped cross section are provided on the side wall in the hoistway 3. First and second guide rails 5 and 6 are fixed to each rail bracket 4. The counterweight 1 is raised and lowered along the first and second guide rails 5 and 6. A shock absorber base 7 is provided at the lower part of the hoistway 3. A shock absorber 8 is provided above the shock absorber base 7.

  2 is a partial cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along line III-III in FIG. Each rail bracket 4 is provided with elongated holes 4a and 4b. The long holes 4a and 4b penetrate each rail bracket 4. The major axis direction of the cross section of the long holes 4 a and 4 b is parallel to the width direction of the first and second guide rails 5 and 6. The elongated holes 4a and 4b are configured by bolt through portions 9a and 9b and rotation stoppers 10a and 10b. Bolt penetration part 9a, 9b and detent | locking part 10a, 10b are each comprised by the half of the major axis direction of the cross section of long hole 4a, 4b.

  One end portions of the first and second rail clips 11 and 12 are engaged with the first guide rail 5. Protrusions 11 a and 12 a having a semicircular cross section are provided at the other ends of the first and second rail clips 11 and 12. The protrusions 11a and 12a are inserted into the rotation stoppers 10a and 10b.

  The first and second rail clips 11 and 12 are provided with through holes (not shown). Fixing bolts 13a and 13b are passed through the through holes and bolt through portions 9a and 9b. Fixing nuts 14a and 14b are screwed onto the fixing bolts 13a and 13b.

  The detents 10a and 10b restrict the rotation of the first and second rail clips 11 and 12 by tightening the fixing bolts 13a and 13b and the fixing nuts 14a and 14b.

  The first guide rail 5 is clamped between the rail bracket 4 and the first and second rail clips 11 and 12 by tightening the fixing bolts 13a and 13b and the fixing nuts 14a and 14b. 4 is fixed.

  In such an elevator guide rail fixing device, since the anti-rotation portions 10a and 10b are provided in each rail bracket 4, the first and second tightening of the fixing bolts 13a and 13b and the fixing nuts 14a and 14b are performed. The first and second rail clips 11 and 12 are not inclined with respect to the first and second guide rails 5 and 6, and the first and second rail clips 11 and 12 are not inclined with respect to the first and second guide rails 5 and 6. The second guide rails 5 and 6 can be more reliably fixed.

Embodiment 2. FIG.
Next, FIG. 4 is a plan view showing a partial cross section of an elevator guide rail fixing device according to Embodiment 2 of the present invention, and FIG. 5 is a cross sectional view taken along the line VV of FIG. Gradient portions 11b and 12b (inclined surfaces) that are inclined with respect to the inner peripheral surfaces of the anti-rotation portions 10a and 10b are formed on the curved surfaces of the protrusion portions 11a and 12a opposite to the surfaces facing the fixing bolts 13a and 13b. Is provided. The gradient parts 11b and 12b are inclined so as to gradually approach the inner peripheral surfaces of the rotation stoppers 10a and 10b from the distal ends of the protrusions 11a and 12a toward the base end. In addition, the slopes 11b and 12b are formed by inserting the protrusions 11a and 12a into the rotation stoppers 10a and 10b, and tightening the fixing bolts 13a and 13b and the fixing nuts 14a and 14b. It is in pressure contact with the inner peripheral surface. Other configurations are the same as those in the first embodiment.

  In such a guide rail fixing device for an elevator, by tightening the fixing bolts 13a and 13b and the fixing nuts 14a and 14b, the gradient portions 11b and 12b pressed against the inner peripheral surfaces of the rotation preventing portions 10a and 10b are projected. Since it is provided on the curved surface opposite to the surface facing the fixing bolts 13a, 13b of the portions 11a, 12a, the gap between the protruding portions 11a, 12a and the rotation preventing portions 10a, 10b is blocked, To more reliably prevent the first and second rail clips 11 and 12 from being inclined with respect to the first and second guide rails 5 and 6 by tightening the fixing bolts 13a and 13b and the fixing nuts 14a and 14b. Can do.

In the above example, the detent portions 10 a and 10 b penetrate the rail bracket 4, but the detent portions 10 a and 10 b do not necessarily have to penetrate the rail bracket 4.
Further, in the above example, the rotation preventing portions 10a and 10b are part of the long holes 4a and 4b, but the rotation preventing portions 10a and 10b may be protrusions. One or more protrusions may be provided.
Furthermore, in the above example, the bolt penetration portions 9a and 9b and the rotation preventing portions 10a and 10b are connected, but the rotation prevention portions 10a and 10b may be provided at intervals from the bolt penetration portions 9a and 9b.

It is a block diagram which shows the principal part of the elevator by Embodiment 1 of this invention. It is a partial cross section figure which follows the II-II line | wire of FIG. It is sectional drawing which follows the III-III line of FIG. It is a top view which shows the guide rail fixing device for elevators by Embodiment 2 of this invention in a partial cross section. It is sectional drawing which follows the VV line of FIG.

Explanation of symbols

  4 rail bracket, 5 first guide rail, 6 second guide rail, 10a, 10b detent, 11 first rail clip, 12 second rail clip, 11a, 12a protrusion, 11b, 12b slope , 13a, 13b Fixing bolts, 14a, 14b Fixing nuts.

Claims (3)

Rail brackets on the hoistway wall,
A rail clip with a guide rail sandwiched between the rail bracket and the rail bracket,
A bolt passed through the rail clip and the rail bracket, and a nut screwed into the bolt,
The guide rail fixing device for an elevator according to claim 1, wherein the rail bracket is provided with a detent portion for restricting rotation of the rail clip by tightening the bolt and the nut. The rail clip has a protrusion,
The elevator guide rail fixing device according to claim 1, wherein the rotation preventing portion is a hole into which the protruding portion is inserted.   The guide rail fixing device for an elevator according to claim 2, wherein a slope portion is provided on the outer peripheral surface of the projection portion so as to be pressed against the inner peripheral surface of the hole by tightening the bolt and the nut. .

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