HK1201250B - Device for attaching elevator guide rail - Google Patents

Description

Guide rail mounting device for elevator

Technical Field

The present invention relates to a guide rail mounting apparatus for an elevator, which can reduce vibration of a guide rail and propagation of noise to a building side, which are generated when the elevator runs.

Background

In a typical elevator, as shown in fig. 6, an elevator car 25 and a counterweight 26 are driven by a hoisting machine 27 to move up and down in an elevator shaft of a building. At this time, in order to smoothly perform the elevating operation of the elevator car 25 and the counterweight 26, both are guided by the guide rail 5. As shown in fig. 7 and 8, a rail bracket 9 for fixing the rail 5 to the building is provided.

The rail bracket 9 is composed of a building side bracket 2 with an L-shaped section and a rail side bracket 6 with an L-shaped section, the building side bracket 2 is fixed on the lifting channel wall 1 through foundation bolts 12, and the rail side bracket 6 fixes a guide rail 5 for guiding the lifting of the elevator car or the balance weight through a guide rail clamp 10.

The rail clamp 10 clamps both ends of the rail 5 and is fixed to the rail-side bracket 6 by a bolt 11. A long hole 13 for adjusting the fastening position of the rail 5 is formed in the horizontal piece 3 of the building side bracket 2, a long hole 14 for adjusting the fastening position in the track gauge (gauge) direction is formed in the horizontal piece 7 of the rail side bracket 6, and the building side bracket 2 and the rail side bracket 6 are fixed by a bolt 15 through the long holes 13, 14. Further, in order to prevent the occurrence of misalignment, the horizontal piece 3 of the building side bracket 2 and the horizontal piece 7 of the rail side bracket 6 are fixed by a welding portion 16 (refer to patent document 1).

In the guide rail bracket, there is a problem that vibration of the guide rail 5 generated when the elevator travels propagates to the building to adversely affect the living environment due to vibration and noise. As a countermeasure against this problem, a holder structure in which an elastic body is sandwiched between two holders has been proposed in the related art (see patent documents 2 and 3). The above prior art describes: in order to prevent the vibration generated in the guide rail from being transmitted to the wall of the lifting passage, a vibration absorbing mechanism such as an elastic body is provided between all the brackets and the fixing member. The above prior art also describes: provided is an elevator capable of reducing noise generated by interference such as friction and collision between a guide rail and a guide rail bracket when the guide rail extends and contracts, and improving comfort of occupants of a building and passengers of the elevator.

Prior art documents

Patent document

Patent document 1: japanese laid-open patent publication No. 1-127586

Patent document 2: japanese patent laid-open No. 2000-86112

Patent document 3: japanese patent laid-open No. 10-77172.

Summary of the invention

Problems to be solved by the invention

In the prior art, an elastic body is sandwiched between a rail and a bracket and is fixed by tightening torques of the rail and a rail clamp without difference, and therefore, excessive pressure may be caused to act on the elastic body, so that vibration-proof performance of the elastic body is lowered and deterioration over time may occur prematurely. Further, no sufficient countermeasure has been taken for the weld fixation between the brackets.

Disclosure of Invention

The invention aims to provide a guide rail mounting device, which can perform torque management by a high torque value of anti-vibration effect independent of fastening torque of a guide rail and a guide rail clamp through clamping an elastic body between a building side bracket and a guide rail side bracket, and can delay the aged deterioration of the elastic body.

Further, another object of the present invention is to provide a rail mounting apparatus which can perform welding even when an elastic body having low heat resistance is used by combining a panel bracket between a building side bracket and a rail side bracket, and which can easily adjust a distance in a rail pitch direction according to a variation in a distance from a hoistway wall to a rail by changing a welding margin between the panel bracket and the building side bracket.

Solution scheme

The guide rail mounting apparatus for an elevator of the present invention is a guide rail mounting apparatus for an elevator, which is fixed to a hoistway wall of an elevator and has a guide rail bracket for fixing a guide rail, in which an elevator car and a counterweight are lifted and lowered along the guide rail in the hoistway by a hoist, the guide rail mounting apparatus for an elevator, characterized in that the guide rail bracket has: the flat plate bracket is fixed on the wall of the lifting channel; an elastic body clamped between the flat bracket and the guide rail side bracket; and a fastener for fastening and fixing the elastic body via the flat bracket and the rail side bracket.

In addition, the guide rail mounting apparatus for an elevator according to the present invention is characterized in that the guide rail bracket further includes a building side bracket fixed to a wall of the hoistway, and the flat plate bracket is fixed to the building side bracket.

In addition, the guide rail mounting apparatus for an elevator according to the present invention is characterized in that a second elastic body is sandwiched between the plate bracket and the fastening member.

In addition, the guide rail mounting apparatus for an elevator according to the present invention is characterized in that the fixing of the panel bracket to the hoistway wall or the fixing of the panel bracket to the building side bracket is performed at the welded portion.

In addition, the guide rail mounting apparatus for an elevator according to the present invention is characterized in that a screw hole into which the fastener is screwed is formed in the guide rail side bracket.

In addition, in the guide rail mounting apparatus for an elevator according to the present invention, the fixing margin between the building side bracket and the flat bracket is adjusted between a maximum fixing margin, in which an overlapping amount between the building side bracket and the flat bracket is the largest in a range where the building side bracket does not contact the fastener, and a minimum fixing margin, in which an overlapping amount between the building side bracket and the flat bracket is the smallest in an allowable range of a joint strength between the building side bracket and the flat bracket.

The guide rail mounting apparatus for an elevator according to the present invention is characterized in that the guide rail side bracket, the elastic body, and the flat bracket are fixed by using a vise device, and the compression force of the elastic body is controlled.

Effects of the invention

The guide rail mounting apparatus of an elevator of the present invention is a guide rail mounting apparatus fixed to a hoistway wall of an elevator, and having a guide rail bracket for fixing a guide rail, in which an elevator car and a counterweight are lifted and lowered along the guide rail in the hoistway by a hoist, the guide rail mounting apparatus of the elevator, the guide rail bracket including: the flat plate bracket is fixed on the wall of the lifting channel; an elastic body clamped between the flat bracket and the guide rail side bracket; and a fastener for fastening and fixing the elastic body by the flat bracket and the guide rail side bracket. Accordingly, it is possible to perform torque management by a torque value having a high vibration-proof effect without depending on the fastening torque of the rail and the rail clamp, and to delay the aged deterioration of the elastic body. Further, even when an elastic body having low heat resistance is used, welding can be performed, and the distance in the track pitch direction can be easily adjusted according to the variation in the distance from the hoistway wall to the guide rail by changing the welding margin between the panel bracket and the building side bracket.

Drawings

Fig. 1 is a side view showing a guide rail bracket according to a first embodiment of the present invention.

Fig. 2 is a plan view showing a guide rail bracket according to a first embodiment of the present invention.

Fig. 3 is a side view showing a modification of the rail bracket according to the first embodiment of the present invention.

Fig. 4 is a side view showing a guide rail bracket of a second embodiment of the present invention.

Fig. 5 is a side view showing a guide rail bracket according to a third embodiment of the present invention.

Fig. 6 is a schematic view showing a general elevator.

Fig. 7 is a plan view showing a guide rail bracket in the related art.

Fig. 8 is a front view showing a guide rail bracket in the related art.

Detailed Description

The present invention will be described below with reference to examples and drawings.

Example 1

Fig. 1 is a side view showing a first embodiment of the present invention, and fig. 2 is a plan view showing the first embodiment of the present invention. As shown in fig. 1 and 2, the first embodiment has a rail-side bracket 6 that fixes a rail 5, a building-side bracket 2, and a flat bracket 17 provided between the two brackets.

The rail-side bracket 6 has an L-shaped cross section and includes a horizontal piece 7 and a vertical piece 8. The vertical piece 8 has a through hole into which the bolt 11 is inserted. Two rail clamps 10 for fixing both ends of the rail 5 are fixed to the vertical plate 8 by bolts 11 as fasteners. The horizontal piece 7 has a screw hole 23 to which the bolt 15 as a fastener is screw-fitted.

The cross section of the building side bracket 2 is L-shaped, and is provided with a horizontal piece 3 and a vertical piece 4. The building side bracket 2 has a circular hole for an anchor bolt 12 fixed to the hoistway wall 1 in the vertical piece 4, and the horizontal piece 3 is welded and fixed to the flat bracket 17 at the welded portion W. The building side bracket 2 is fixed on the lifting channel wall 1 through anchor bolts 12.

As described above, the flat bracket 17 has one end welded and fixed to the horizontal piece 3 of the building-side bracket 2 at the welded portion W, and has the other end provided with the through hole 24 through which the bolt 15 for fixing the rail-side bracket 6, the elastic body 18, and the flat bracket 17 is inserted.

The panel bracket 17 is positioned at a predetermined position of the building side bracket 2 in advance, and after being welded and fixed, the building side bracket 2 is fixed to the hoistway wall 1 by the anchor bolts 12. Next, the rail-side bracket 6 is fixed to the plate bracket 17 via the elastic body 18 by the bolt 15. Reference numeral 20 denotes a gasket.

In example 1, a second elastic body 19 is further added between the plate holder 17 and the bolt 15. The elastic bodies 18 and 19 are formed of annular plates made of a durable industrial rubber material such as chloroprene rubber or butadiene rubber. Since the metal members directly contact the portions from the rail-side bracket 6 to the bolts 15, vibration generated from the rail 5 is easily transmitted, and since the elastic members 18 and 19 are provided between the bolts 15 and the plate bracket 17, the metal members do not directly contact each other, and a sufficient vibration-proof effect can be obtained.

A screw hole 23 for engaging with the bolt 15 is formed in the rail-side bracket 6, and by using a lock nut as the nut 21 of the bolt 15, the bolt 15 is locked by the screw of the screw hole 23 of the rail-side bracket 6 and the lock nut 21, thereby preventing the bolt 15 from loosening. The above structure has an effect of preventing the bolt 15 from coming off due to looseness or play between the rail-side bracket 6 and the plate bracket 17, which is generated when the elastic body 18 loses elasticity due to aging degradation. Further, since the bolt 15 is provided with the pin 22 for preventing the nut from coming off at the end portion thereof, safety can be improved.

When the dimension of the fixing margin at the time of welding and fixing the building side bracket 2 and the panel bracket 17 is set, the fixing margin at the time of the maximum overlapping amount of the building side bracket 2 and the panel bracket 17 within the limit where the building side bracket 2 does not contact the bolt 15 is set as the maximum fixing margin (see fig. 1), and the fixing margin at the time of the minimum overlapping amount of the building side bracket 2 and the panel bracket 17 within the limit where the welding strength is allowed is set as the minimum fixing margin (see fig. 5), and the margin is provided therebetween.

That is, by providing a certain margin for the size of the horizontal piece 3 and the flat plate bracket 17 of the building side bracket 2, it is possible to absorb the variation in size from the hoistway wall 1 to the rail 5 according to the size variation of each hoistway, and thus it is possible to easily adjust the rail bracket.

Note that, if the building side bracket 2 and the panel bracket 17 are welded and fixed before the panel bracket 17, the elastic body 18, and the rail side bracket 6 are fixed by the bolts 15, even when an elastic body having low heat resistance is used, the influence of heat by welding can be avoided, and an elastic body having low heat resistance can be used. Further, the rail-side bracket 6 and the panel bracket 17 may be fixed first and then welded to the building-side bracket 2.

Among the constituent elements of fig. 1 to 3, those having the same structure and the same function as those shown in fig. 6 to 8 described above are denoted by the same reference numerals, and the description thereof is omitted.

Example 2

In embodiment 2, as shown in fig. 4, as the strength member 28 of the hoistway, the building-side bracket 2 is replaced with an intermediate beam or a fastening plate provided on the wall of the hoistway of the building, and the flat plate bracket 17 is directly fixed to the strength member 28. According to the present invention, when the intermediate beam and the fastening plate are used instead of the building-side bracket 2 as described above, the degree of freedom of construction is slightly reduced, but since it is not necessary to use a new member, the cost of construction can be reduced.

Example 3

In embodiment 3, as shown in fig. 5, instead of the bolts 15 that fix the rail-side bracket 6, the elastic body 18, and the plate bracket 17 and that manage the moment of the compressive force received by the elastic body 18, fixing and moment management are performed using the vise device 29 such as a vice. Since the vise device 29 can display the tightening torque itself, torque management can be performed more conveniently. In the present invention, the same effect can be obtained by using the vise device 29 instead of the bolt 15.

Description of the reference numerals

1 … hoistway wall, 2 … building side bracket, 3, 7 … horizontal piece, 4, 8 … vertical piece, 5 … guide rail, 6 … guide rail side bracket, 9 … guide rail bracket, 10 … guide rail clamp, 11 … bolt, 12 … anchor bolt, 15 … bolt, 17 … flat bracket, 18 … elastic body, 19 … second elastic body, 21 … nut, 25 … elevator car, 26 …, balance weight 27 … windlass, 28 … strength component, 29 … bench clamp device, W … welding part

Claims (6)

1. A guide rail mounting apparatus of an elevator, which is fixed on a hoistway wall of an elevator, having a guide rail bracket fixing a guide rail, in which an elevator car and a counter weight are raised and lowered along the guide rail in the hoistway by a winding machine,

the guide rail mounting arrangement of an elevator is characterized in that,

the rail bracket has: a flat plate bracket formed of a flat plate, which is fixed on the wall of the lifting passage; a guide rail side bracket which fixes the guide rail, has an L-shaped section, and has a horizontal piece and a vertical piece; an elastic body sandwiched between the flat bracket and the horizontal piece of the rail-side bracket; and a fastener for fastening and fixing the elastic body via the flat bracket and the horizontal piece of the guide rail side bracket, wherein a screw hole for being screwed with the fastener is formed on the guide rail side bracket, and two guide rail clamps for fixing two ends of the guide rail are fixed on the vertical piece.

2. Guide rail mounting apparatus of an elevator according to claim 1,

the guide rail support is also provided with a building side support fixed on the wall of the lifting channel, and the flat plate support is fixed on the building side support.

3. Guide rail mounting apparatus of an elevator according to claim 1,

a second elastic body is sandwiched between the plate holder and the fastener.

4. The guide rail mounting apparatus of an elevator according to claim 2,

and the flat support and the wall of the lifting channel or the building side support are fixed through a welding part.

5. The guide rail mounting apparatus of an elevator according to claim 2,

the fixing allowance of the building side support and the panel support is adjusted between a maximum fixing allowance and a minimum fixing allowance, in the case of the maximum fixing allowance, the overlapping amount between the building side support and the panel support is the largest in a range where the building side support is not in contact with the fastener, and in the case of the minimum fixing allowance, the overlapping amount between the building side support and the panel support is the smallest in an allowable range of joint strength of the building side support and the panel support.

6. The guide rail mounting apparatus of an elevator according to any one of claims 1 to 5,

fixing the rail-side bracket, the elastic body, and the flat bracket using a vice device, and managing a compression force of the elastic body.