JPH11240678A - Elevator counterweight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the height of an elevator shaft by avoiding protrusion of guide shoes and lubricators above a counterweight frame. SOLUTION: The elevator counterweight comprises a counterweight frame coupled to a car by means of a rope so as to move vertically along guide rails 14 relative to the car, weights 12 loaded in the counterweight frame in a pile, guide members 21 placed along the guide rails 14 as well as on the outer side of vertical frame pieces 11c and 11d in the counterweight frame and formed with a channel 21a along the guide rails 14 in their side facing the guide rails 14, guide shoes 13 placed in the channels 21a of the guide members 21 so as to be guided by the guide rails 14. The guide shoes 13 are arranged against protrusion above or below the counterweight frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator counterweight for balancing a car.

[0002]

2. Description of the Related Art FIG. 3 shows an example of an elevator counterweight generally used at present. This elevator counterweight is configured by holding a plurality of weights 2 by a counterweight frame 1. The counterweight frame 1 includes an upper beam 1a, a lower beam 1b,
The right and left vertical frames 1c and 1d are provided. Guide shoes 3 guided by left and right guide rails 4 are provided above the upper beam 1a and below the lower beam 1b, respectively. A lubricator 5 for applying rail oil as lubricating oil to the guide rail 4 is disposed further above the guide shoe 3 at the upper end. An intermediate stopper 6 is provided at an intermediate portion between the left and right vertical frames 1c and 1d toward the guide rail 4. The intermediate stopper 6 comes into contact with the guide rail 4 at the time of an earthquake or the like and partially bears the seismic force.

[0003]

However, in such a counterweight for an elevator, the guide shoe 3 is mounted so as to protrude from the upper and lower ends of the counterweight frame 1, and the lubricator 5 is mounted on the counterweight. Since it is attached to the upper end of the frame 1 so as to protrude, there is a problem that traveling allowance of the counterweight is reduced, and the height of the hoistway is required accordingly.

Further, since the guide shoes 3 are attached to the upper and lower ends of the counterweight frame 1 so as to protrude, the rail oil applied to the guide rails 4 is applied by the guide shoes 3 by the travel of the elevator counterweight. There is also a problem that the ball may be repelled and fly into the hoistway.

Accordingly, an object of the present invention is to provide a counterweight for an elevator capable of reducing the height of a hoistway and preventing scattering of lubricating oil into the hoistway. .

[0006]

According to a first aspect of the present invention, there is provided a weight frame which is connected to a car and a rope via a rope and which relatively moves up and down along the guide rails, and is loaded on the weight frame. A weight, a guide member disposed along the guide rail outside the vertical frame of the weight frame, and having a groove along the guide rail on the guide rail side; and a guide rail provided in the groove of the guide member. And a guide shoe guided to the elevator.

According to a second aspect of the present invention, the guide member is fastened to the vertical frame of the weight frame by screwing means, and a cutout hole for inserting a tool for attaching the screwing means to the guide member is provided. An elevator counterweight according to claim 1.

According to a third aspect of the present invention, there is provided a weight frame which is connected via a car and a rope to move up and down along the guide rail relatively to the car, a weight loaded on the weight frame, and a weight frame. And a guide member having an H-shaped cross section or an I-shaped cross section disposed with one of the grooves facing the guide rail, and a guide member provided in the groove facing the outside of the guide member. An elevator counterweight comprising a guide shoe guided by a rail.

According to a fourth aspect of the present invention, there is provided an oil supply device for applying a lubricating oil to a guide rail in a groove facing the outside of the guide member. It is a counterweight for elevators.

According to a fifth aspect of the present invention, a plate for closing an opening in a direction along a guide rail of a groove of a guide member is provided above and below a position at which a guide shoe and a lubricator are provided in a groove of the guide member. The elevator counterweight according to claim 4, wherein the counterweight is provided.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing the appearance of a counterweight according to the present embodiment. Reference numeral 11 denotes a counterweight frame. The counterweight frame 11 includes an upper beam 11a, a lower beam 11b, left and right vertical frames 11c and 11d, and holds a weight 12. Each of the vertical frames 11c and 11d has a U-shaped cross section, and its grooves face inward.
A plurality of the weights 12 are arranged in the groove portion.

On the outer surface of each of the vertical frames 11c and 11d, a grooved steel is formed along each guide rail 14.
A guide member 21 having a U-shaped cross section made of a bent steel material or the like is provided. The guide member 21 holds the vertical frame 11 with the groove 21a facing outward.
It is attached to the outer surfaces of c and 11d by screwing means such as bolts, nuts and screws.

A pair of guide shoes 1 is provided inside the groove 11a of each guide member 21 at an upper part and a lower part thereof.
3 are attached. A lubricator 15 is mounted inside the groove 21 a of each guide member 21 above the upper guide shoe 13.

At the upper end and the lower end of the groove 21a of each guide member 21, a plate 23 for closing the vertical opening of each guide member 21 is attached. Each plate 23 has a notch 2 enough to allow the guide rail 14 to be inserted.
3a are formed.

Further, a notch hole 24 is formed in a bent portion of each guide member 21 for passing a tool necessary for tightening a bolt and a nut for mounting the guide member 21. Thus, the vertical frames 11c, 11d of the counterweight frame 11
A guide member 21 having a U-shaped cross section is formed on the outer surface of the
And the guide shoe 13 is provided inside the groove 21a, so that the guide shoe 13 does not protrude more vertically than the counterweight frame 1 as in the prior art. The running allowance of the weight is widened, and at the same time, the height of the hoistway can be reduced.

Further, by providing not only the guide shoe 13 but also the lubricator 15 in the groove 21a of the guide member 21, the lubricator 15 does not protrude upward from the counterweight frame 11. Therefore, the traveling allowance of the counterweight is further increased by that amount, and the height of the hoistway can be further reduced.

The guide member 21 is fastened to the vertical frames 11c and 11d of the counterweight frame 11 using bolts, and a notch hole 24 for inserting a bolt tightening tool into the guide member 21 is provided.
Is provided, the vertical frame 11c, 1 of the guide member 21 is provided.
Mounting to 1d becomes easy.

Further, the upper and lower ends of the groove 21a of each guide member 21, that is, the upper and lower positions of the guide shoes 13 and the lubricator 15 are located above and below the guide members 21 respectively.
By mounting the plate 23 that closes the opening in the vertical direction, even if the rail oil applied to the guide rail 14 from the oiler 15 by the running of the counterweight is repelled by the guide shoe 13, the guide member 21
It does not fly outside. This can prevent the rail oil from scattering on the hoistway.

Next, a second embodiment of the present invention will be described with reference to FIG. Note that, in the present embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

FIG. 2 is a perspective view showing the appearance of the counterweight according to the present embodiment. Reference numeral 31 denotes a counterweight frame. The counterweight frame 31 includes an upper beam 31a, a lower beam 31b, left and right vertical frames 31c and 31d, and holds the weight 12. These vertical frames 31c and 31d are members having an H-shaped or I-shaped cross section in which grooves are formed on both sides, for example, H-section steel, I-shaped.
It is made of a shaped steel or the like, and also serves as the guide member 21 in the first embodiment. That is, the vertical frame 31
c, 31d, one of the grooves faces each other, a plurality of the weights 12 are arranged in the inner groove, and the guide shoe 13, the lubricator 15, and the plate 2 are disposed in the outer groove.
3 are provided in the same manner as in the first embodiment.

In the embodiment of the present invention having such a configuration, the height of the hoistway can be reduced, and the lubricating oil can be prevented from scattering into the hoistway. In addition to achieving the same effects as those of the embodiment, the vertical frames 31c and 31d and the guide member 21 are integrally formed of an H-beam, an I-beam, or the like, so that the number of parts can be reduced and the cost can be reduced. And the vertical frame 31
The trouble of attaching the guide member 21 to c and 31d can be omitted, and the productivity can be improved.

[0022]

As described above in detail, according to the present invention, the guide shoe and the lubricator do not protrude to the upper end of the weight frame, so that the running allowance of the counterweight is increased by that much, and at the same time, the height of the hoistway is increased. Can be reduced.

Further, by mounting a plate for closing the opening of the guide member in the direction along the guide rail above and below the position where the guide shoe and the lubricator are arranged, the balance weight moves from the lubricator to the guide rail. Even if the applied lubricating oil is repelled by the guide shoe, it does not scatter outside the guide member. This can prevent the lubricating oil from scattering on the hoistway. The lubricating oil supplied from the lubricator to the guide rail can prevent the lubricating oil from scattering to the hoistway.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external configuration of an elevator counterweight according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an external configuration of an elevator counterweight according to a second embodiment of the present invention.

3A and 3B are diagrams showing an external configuration of a conventional elevator counterweight; FIG. 3A is a front view, and FIG. 3B is a side view.

[Explanation of symbols]

 11, 31 ... counterweight frame 11a, 31a ... upper beam 11b, 31b ... lower beam 11c, 31c ... left vertical frame 11d, 31d ... right vertical frame 12 ... weight 13 ... guide shoe 14 ... guide rail 15 ... lubricator 21 … Guide member 21a… Groove part 23… Plate 24… Notch hole

Claims (5)

[Claims] 1. A weight frame which is connected via a ride and a rope and which moves up and down relatively along a guide rail with the ride, a weight loaded on the weight frame, and an outer side of a vertical frame of the weight frame A guide member disposed along the guide rail and having a groove on the guide rail side along the guide rail, and a guide shoe provided in the groove of the guide member and guided by the guide rail. A counterweight for elevators characterized by the following. 2. The notch according to claim 1, wherein the guide member is fastened to the vertical frame of the weight frame by screwing means, and a notch hole for inserting a tool for attaching the screwing means to the guide member is provided. Counterweight for elevator. 3. A weight frame which is connected via a ride and a rope to move up and down along the guide rail relatively to the ride, a weight loaded on the weight frame, and a vertical frame of the weight frame. A guide member having an H-shaped cross section or an I-shaped cross section disposed with one groove portion facing the guide rail side, and provided in a groove portion facing the outside of the guide member and guided by the guide rail. A counterweight for an elevator, comprising a guide shoe. 4. An elevator balancing device according to claim 1, wherein a lubricator for applying lubricating oil to said guide rails is provided in a groove portion facing the outside of said guide member. weight. 5. A plate for closing an opening in a direction along a guide rail of the groove of the guide member is provided in the groove of the guide member above and below a position where the guide shoe and the lubricator are provided. The balancing weight for an elevator according to claim 4, characterized in that: