KR20040096119A - Having a buffer elevator car - Google Patents

Abstract

PURPOSE: An elevator car is provided to eliminate the necessity of increasing the depth of a pit and prevent a corrosion of the pit by directly installing a buffering device at the bottom surface of a cage, avoiding a lower frame. CONSTITUTION: An elevator car comprises a cage(10); a pair of vertical frames arranged in a vertical direction at both sides of the cage; an upper frame and a lower frame(11) for connecting the tops and bottoms of the vertical frames; and a plurality of buffering members(20) for reducing fall impact, and which are arranged at the bottom surface of the cage, avoiding the lower frame. The buffering members are arranged to have variable positions with respect to the cage, through a bracket(30). The bracket has a female bracket(310) fixed at the bottom surface of the cage; and a male bracket(320) fixed to the buffering members.

Description

Lifting a buffer elevator car with shock absorber

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car, and more particularly, to an elevator car provided with a shock absorber and shock absorber, characterized in that a shock absorber is provided on the bottom of the car to absorb the impact force in the case of an accident.

In general, an elevator car has a cage 1 for carrying passengers, a pair of vertical frames 2 installed vertically on both sides of the cage, and a top and a bottom of the vertical frame, respectively. Consists of the upper frame 3 and the lower frame 4 to be connected.

The elevator car having such a configuration is provided with a shock absorbing means 6 on the bottom surface of the hoistway 5 as a safety device for damping the impact force in the fall accident as shown in FIG. At this time, the shock absorbing means 6 may be installed as a single point aimed at the midpoint of the bottom surface 1a of the cage 1 as shown in FIG. 3A, or the plurality of shock absorbing means 6 may be installed as shown in FIG. 3B. They are installed symmetrically with respect to the center of gravity.

However, when the cushioning means 6 is aimed at the midpoint of the bottom of the cage, since the lower frame 4 is installed to cross the midpoint of the cage 1, the buffering point is not the bottom of the cage. 4) will be. Therefore, the depth H of the pit corresponding to the floor space of the hoistway should be at least deeper than the sum of the height h ₁ of the lower frame and the length h ₂ of the cushioning means. Depth (H) must be deepened.

If the depth (H) of the pit (P) is deepened, the groundwater flows into the pit and cannot be discharged, so that it is standing for a long time. As the moisture is filled in the control unit, a problem that causes a malfunction occurs.

In addition, since the shock absorbing means 6 is installed in the pit P, when the water is accumulated, the corrosion of the shock absorbing means is accelerated by the deceased material, which shortens the lifespan of the shock absorbing means and also causes a problem of loss of function in a short time. do.

On the other hand, the same problem as the above-mentioned problem is pointed out even when the shock absorbing means 6 is installed toward the bottom surface of the cage 1 by avoiding the lower frame 4, and in addition, the shock absorbing means 6 is located at a position other than the center of the cage. In case of installing the means, it should be installed in the exact symmetrical position with respect to the center point, but since it is not installed directly in the cage, it is difficult to set the installation position accurately, and if it is installed incorrectly, it is installed on the concrete floor, so impossible.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the main object of the present invention is to provide an elevator car is provided with a shock absorber for shock absorber provided with a cushioning means on the bottom surface of the cage.

In addition, another object of the present invention is to install a plurality of shock absorbing means, by varying the length of the shock absorbing means for each or group, or by varying the shock absorbing force elevator car equipped with a shock absorbing shock absorber for strengthening the damping performance of the impact impact fall more To provide.

In addition, another object of the present invention is to provide an elevator car is provided with a shock absorber for the fall shock attenuator so that the installation position of the shock absorber can be more easily corrected.

1 is a configuration diagram of a typical elevator car

2 is a state diagram of a typical elevator car installation

Figure 3a is a mounting position of the conventional buffer means 1

Figure 3b is a mounting position of the conventional shock absorbing means 2

4 is an elevator car according to the present invention, an exploded perspective view of the bracket

5 is a cross-sectional view of the bonding state of FIG.

6 shows various embodiments of the shock absorbing means according to the present invention.

a) is air spring, b) coil spring, c) rubber pad

7 is a view showing in detail the buffer means according to the invention the first buffer means and the second buffer means

[Description of Symbols for Main Parts of Drawing]

10: cage 11: lower frame

20 buffer member 21 first buffer member 22 second buffer member

30: bracket 310: arm bracket 311: coupling piece

312: slot 313: fastener

320: male bracket 321: locking portion 322: mating fastening hole

323 connection

40: rubber pad

An object of the present invention is an elevator car comprising a cage, a pair of vertical frames installed vertically on both sides of the cage, and an upper frame and a lower frame connecting upper and lower portions of the vertical frame, respectively; A plurality of shock absorbing means for attenuating the fall impact at the point avoiding the lower frame of the bottom of the cage is achieved by being capable of changing the position relative to the cage via the bracket.

At this time, the bracket has a coupling piece screwed to the bottom surface of the cage is provided on both sides, the lower portion formed by being bent in multiple stages from the coupling piece is provided with an open slot on one side, and several fastening holes are provided around the slot An arm bracket formed; It has a diameter larger than the width of the slot and is caught by the upper portion of the slot is provided with a engaging portion having a relative fastening hole for screwing into any one of the fastening hole, and the connecting portion and the buffer means connecting the slot It is characterized in that consisting of; male bracket having a connection portion that is inserted into the slot is smaller than the width of the.

And, it is preferable that a rubber pad is interposed between the cage and the bracket.

In addition, the buffer means is characterized in that any one of the coil spring, shock absorber, pneumatic cylinder, air spring, rubber pad.

The buffer means is subdivided into first buffer means positioned at both sides of the lower frame, and second buffer means positioned at both sides of the lower frame and shorter than the first buffer means. desirable.

In addition, the buffer means is subdivided into a first buffer means located on both sides of the lower frame and the second buffer means located on both sides of the lower frame but less buffering force than the first buffer means. desirable.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 4 to 7.

First, according to Figures 4 and 5, the elevator car of the present invention is a cushioning means 20 for attenuating the fall impact directly to the position avoided the lower frame 11 of the bottom (bottom surface) of the cage 10 Although installed, the buffer means is installed so that the position can be changed with respect to the cage via the bracket (30).

At this time, the bracket 30 is composed of a female bracket 310 is fixed to the bottom surface of the cage 10, the male bracket 320 is fixed or formed on the buffer means (20).

The female bracket 310 is provided with a coupling piece 311 which is screwed to the bottom surface of the cage 10 on both sides of the upper side, the lower side is formed by bending in multiple stages from the coupling piece slot 312 Is provided, and also the fastening hole 313 is formed around the slot.

The male bracket 320 has a diameter larger than the width b of the slot 312 so as to be hung on the upper portion of the slot and to be screwed into one of the fastening holes 313. Is provided, and a connecting portion 323 having a diameter smaller than the width b of the slot 312 while being connected to the locking portion and the buffer means 20 is inserted into the slot. It is done.

Therefore, as the male bracket 320 is coupled to the female bracket 310, the shock absorbing means 20 may be coupled to the bottom of the cage 10, and the male to the fastening hole 313 of the female bracket 310 may be combined. By changing the position of the mating fastening hole 322 of the bracket 320, the position of the male bracket 320 and the buffer means 20 connected thereto with respect to the cage can be varied.

On the other hand, between the bottom surface of the cage 10 and the arm bracket 310, it is preferable that a plate-shaped cushioning material, for example, rubber pad 40 or the like for attenuating the surplus impact force that is not defended by the buffer means 20 is involved. Do. The rubber pad is primarily cushioned by the shock absorbing means 20 in case of the fall of the cage, but the secondary impact force transmitted from the shock absorbing means is transmitted to the cage 10 through the male bracket 320 and the arm bracket 320. It is installed for the purpose of preventing.

And, the shock absorbing means 20 is a) air spring (20a), b) rubber pad (20b), c) coil spring (20c), or the shock absorber shown in FIG. Ordinary, such as (shock absorber) may be applied, but is not specific to this.

In addition, the buffer means 20 is the first buffer means 21 is installed on both sides of the bottom frame 11 of the bottom surface of the cage 10 for the purpose of improving performance as shown in Figure 7, and the lower frame Located on both sides of the center and may be subdivided into second buffering means 22 having a shorter length than the first buffering means (H1> H2),

In addition, although not shown in the drawings, the buffer means 20 may be subdivided into the first buffer means and the second buffer means as described above, but the buffering force of the second buffer means may be smaller than that of the first buffer means. have.

If the difference in the length of the first and second buffer means (21, 22) or the difference in the buffer force in this way when the impact impact is long, the impact force is primarily by the first buffer means 21 having a long or shock absorbing force The damping force, which is attenuated by the first buffering means, is buffered secondly by the second buffering means 22 having a relatively short length or a weak buffering force, so that the shock absorbing performance can be further improved. will be.

As described above, the present invention does not have to deepen the depth of the pit by directly installing the shock absorbing means at the position avoiding the lower frame of the bottom of the cage, and prevents the accumulation of pit in the pit.

In addition, since the position of the buffer means can be easily corrected within the proper range by the bracket, even if the installation position is wrong, it is easy to calibrate.

In addition, it is possible to minimize the impact force on the cage generated when the fall by installing a buffer with a long or buffering force and a relatively short or weak buffering force.

Claims (6)

An elevator car comprising a cage, a pair of vertical frames installed vertically on both sides of the cage, and an upper frame and a lower frame connecting upper and lower portions of the vertical frame, respectively; Elevator provided with a shock absorbing shock absorber, characterized in that a plurality of shock absorbing means for attenuating the fall impact to the point avoiding the lower frame of the bottom of the cage can be changed in position relative to the cage via the bracket Ka. The method of claim 1, Bracket, A female bracket screwed to the bottom surface of the cage is provided on both sides of the upper portion, a lower portion formed by bending in multiple stages is provided with a slot having one side open, and a female bracket having several fastening holes formed around the slot; It has a diameter larger than the width of the slot and is caught by the upper portion of the slot is provided with a engaging portion having a relative fastening hole for screwing into any one of the fastening hole, and the connecting portion and the buffer means connecting the slot An elevator car equipped with a shock absorber for shock reduction, comprising: a male bracket having a connection portion drawn into the slot to have a diameter smaller than the width of the; The method of claim 1, An elevator car equipped with a shock absorber for a shock absorber, characterized in that the rubber pad is interposed between the cage and the bracket. The method of claim 1, The shock absorbing means is an elevator car equipped with a shock absorber for shock reduction, characterized in that any one of the coil spring, shock absorber, pneumatic cylinder, air spring, rubber pad. The method of claim 1, Shock absorbing means and the first buffer means located on both sides of the lower frame, Located on both sides of the lower frame, the elevator car is provided with a shock absorbing shock absorber, characterized in that the subdivided into a second shock absorbing means having a shorter length than the first shock absorbing means. The method of claim 1, Shock absorbing means and the first buffer means located on both sides of the lower frame, An elevator car provided with a shock absorbing and damping device positioned on both sides of the lower frame, and subdivided into second buffering means having a smaller buffering force than the first buffering means.