JPS6251586A - Sheave supporter for base element elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [iK: Field of Application on Beams] The present invention relates to a basement type elevator, and particularly to a support device for an elevator sheave.

[Prior Art] A conventional support device of this type will be explained based on FIGS. 3 and 4. FIG. 3 is a diagram showing a longitudinal section of the elevator, in which (1) is the elevator hoistway, and (2) is the hoisting machine (not shown) defined on the lower side of the hoistway (1). (3) is a sheave attached to the hoisting machine,
A main rope (4) is wrapped around this sheave (3), and this main rope (4) is attached to a support column (5a) erected at the boundary between the hoistway (1) and the machine room (2). A pair of deflection wheels (8a) attached to (5b).

(6b) Then, an elevator car (7) is connected to one end and a counterweight (8) is connected to the other end by a single winding machine! It is configured to move up and down the ji descending path (1). From the deflection wheel (Ga), (8b) to the basket (
7) and the main rope (4) leading to the counterweight (8) are connected to the diverter wheel (9a) to the car (7) located at the top of the hoistway (1).
), (9b) and the deflection wheel (
10a) and (10b) to the car (7) and the counterweight (8). and each deflection wheel (9a), (9b) and (10a), (10b)
are support beams (lla), (llb) and (12) installed above and below the opposing wall (la) and (lb) at the top of the hoistway (1)
a), (12b) are foamed. These support beams (11a), (llb) and (12a).

FIG. 4 shows (12b) viewed from above. As is clear from the same figure, the support beams (11a) and (1lb)
and support beams (12a), (12b) and deflector wheels (6
a) and (Eib) intersect in the upper part.

[Problems to be solved by the invention] As described above, conventional support beams (lla), (llb) and (
Since the deflection wheels (9d) and (10a) placed in 12a) and (+2b) are in almost the same position, they need to be positioned below the support beams (11a) and (1lb). and (12a), (
12b) are arranged in two stages, upper and lower, as shown in FIG. 3, which has the problem of requiring an extra space at the top of the hoistway (1).

The present invention was made to solve such problems, and includes support beams (lla), (llb) and support beams (12a).
.

(12b) in the same horizontal plane to save extra space.

[Means for Solving the Problems] The present invention provides a method for installing a diversion wheel in the hoistway that once detours the main rope from the hoisting machine to the diversion wheel of either the elevator car or the counterweight. In both cases, a sheave support device for a basement elevator is constructed by arranging support beams that support the deflection sheave at the top of the hoistway on the same horizontal plane.

[Operation 1] According to the present invention, the deflection wheel support devices at the top of the hoistway are arranged on the same horizontal plane, so that the space at the top of the hoistway can be saved.

[Embodiment] The present invention will be explained below based on the embodiment shown in FIGS. 1 and 2. In the description, parts that are the same as or equivalent to those in the prior art will be given the same reference numerals as in the prior art, and the explanation thereof will be omitted. In Figure 1, one end of the main rope (4) from the sheave (3) passes through the deflection wheel (8a) above the support columns (5a) and (5b), and then connects the main rope to the counterweight (8). (4), which leads to the deflection wheels (10a) and (10b), and the other end is the support column (
The diversion wheels (13a) and (13b) are attached to the support beams (13a) and (13b) installed on the opposing walls (tc) and (ld) at the bottom of the hoistway (1) via the diversion wheels (6b) below 5a) and (5b). (14), and the main rope (4) bypassing this diversion wheel (14) goes to the car (7) at the top of the hoistway (1).
) to reach the car (7) via deflection wheels (9a) and (9b). and these supporting beams (lla).

(llb) , (12a) , (12b) and (13a
), (13b) is shown in Figure 2, and according to the figure, the cage (7) and the counterweight (
Each deflection wheel (9a) guiding the main rope (4) to 8),
(9b) and (10a), (10b) support beam (l
la) , (Ilb) and (12a) , (12b)
is a support beam (13a) that is constructed between one opposing wall (la) and (lb) and supports the diversion wheel (14) on the other side.
, (13b) are the support beams (lla), (llb)
, (12a) and (12b) at the bottoms of the other opposing walls (lc) and (ld). The support beams (13a) and (13b) are suspended in a downward direction along one wall (1a) of the opposing walls (Ia) and (lb), as shown in FIG. In order to guide the main rope (4) upward through the diversion wheel (14) in this way, the above-mentioned diversion wheels (9a),
(9b), (10a), and (10b), the main ropes (4) pulled out in the directions are separated by # equivalent to the diameter of the deflection wheel (14) (see Figure 1), so
Since the deflection wheels (9a) and (9b) that guide the main rope (4) to the car (7) and the counterweight (8) can be placed apart from each other as shown in Fig. 1, these support beams (lla) , (llb) and (12a) , (12
b) It is not necessary to intersect them and arrange them vertically, and both can be placed in the same horizontal plane as shown in FIG. Therefore, the space in the height direction at the top of the hoistway (1) can be saved.

In addition, in the above embodiment, the case is shown in which there is only one deflection wheel (14) attached to the support beams (13a) and (13b) installed below the machine room (2) of the hoistway (1). However, by dividing these into two pieces, the holding dimensions formed between the main ropes (4) that branch out and stand up from the deflection wheels (9a) and (10a) located at the top of the hoistway (1) can be arbitrarily changed. It may be possible to do so.

Further, in the embodiment described above, the support beams (13a) and (13b) can be attached to the side wall of the hoistway (1) or the support beams (13b) may be attached to the bottom of the hoistway (1).

[Effects of the Invention] According to the present invention, the space in the height direction at the top of the shaft of the basement elevator can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an elevator to which an embodiment of the sheave support device according to the present invention is applied, and FIG.
■ Line sectional view, Figure 3 is the first equivalent view using the conventional device,
FIG. 4 is a sectional view taken along the line IT-rV in FIG. 3. In the figure. (1) is the hoistway, (3) is the sheave, and (4) is the main rope. (8a), (fib), (9a), (9b), (loa
), (10b) and (14) are deflector wheels, (7) baskets, (8) counterweights, (lla)
, (llb) , (12a) , (12b) and (13
a) and (13b) are support beams. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Agent Masuo Oiwa Figure 2 Figure 4 procedural amendment (voluntary) Showa. September 17th

Claims (4)

[Claims] (1) Lifting and lowering of the plural deflection wheels that guide the lifting main rope, which is wrapped around the sheave of the hoist installed on the side of the elevator hoistway, to connect it to the elevator car and counterweight. In a sheave support device for a basement elevator that supports a diversion sheave arranged on the road, a diversion sheave is provided in the hoistway to detour the main rope from the hoisting machine, and the main rope connected to each of the latter diversion sheaves is A sheave support device for a basement elevator, characterized in that the cables have predetermined dimensions and support devices for supporting each of these deflection sheaves are arranged in the same horizontal plane. (2) The sheave support device for a basement elevator according to claim 1, wherein the detour sheave is attached below the hoistway. (3) The sheave support device for a basement elevator according to claim 1 or 2, wherein the detour sheave is supported by a pair of support beams. (4) The sheave support device for a basement elevator according to any one of claims 1 to 3, wherein the predetermined dimension is formed as the outer diameter dimension of the detour sheave.