JPS6211894Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a basement type elevator in which a hoisting machine is installed near the bottom of the hoistway or on the side.

First, a conventional basement elevator will be explained with reference to FIG.

In the figure, 1 is the elevator hoistway, 2 is the machine room installed adjacent to the lower part of this, and 3 is the machine room 2.
3a is the drive sheave of this hoist installed in
4 is a first diversion wheel pivotally connected to the machine room 2, 5 is a second diversion wheel adjacent to this which is pivotally connected to the machine room 2, and 6 is a first suspension wheel pivotally connected to the upper part of the hoistway 1. car,
7 is the second hanging wheel pivotally attached to the upper part of the hoistway 1;
is a third hanging wheel 9 which is pivoted at the upper part of the hoistway 1 apart from this, and 9 has a counterweight 10 suspended from one end; This is a main rope that is sequentially wound around two diverter wheels 5, a second hanging wheel 7, and a third hanging wheel 8, and suspends a car 11 from the other end.

That is, the hoisting machine 3 provided at the bottom of the hoistway 1
Since the car 11 etc. are driven by
It is advantageous in that it does not require a machine room above, that is, on the roof of the building, and does not block sunlight. However, the first and second
It had the disadvantage of requiring many sheaves such as deflection wheels 4 and 5, which increased manufacturing costs.

This invention aims to eliminate the above-mentioned drawbacks and provides a simply constructed basement elevator.

An embodiment of this invention will be described below with reference to FIGS. 2 and 3.

In the figure, the same symbols as in Figure 1 indicate corresponding parts, and 12
1 is a stair room provided adjacent to the hoistway 1, 2 is a machine room provided below this, and 3a is a stair room that protrudes into the hoistway 1 and is arranged between the car 11 and the wall of the hoistway 1 in a plane. A drive sheave 6' of the hoisting machine 3 is arranged such that the direction of the sheave groove 3b is along the side surface of the car 11.
A weight suspension wheel 8 and 8' is pivotally connected to the counterweight 10, a car suspension wheel 8 and 8' are respectively pivotally connected to the lower part of the car 11, and a weight suspension wheel 9 has one end fixed to the upper part of the hoistway 1. ', first hanging sheave 6, drive sheave 3a, second hanging sheave 7, car hanging sheave 8, 8'
A main rope is wound around the main rope in sequence and the other end is fixed to the upper part of the hoistway 1. Reference numeral 13 is a manhole provided at the landing of the stairwell 12 and leading to the machine room 2.

That is, the car hanging wheels 8, 8' are arranged near the rails of the car 11, so that the center of gravity of the car 11 is supported by the main rope 9, and the reaction force of the car 11 against the rails is reduced. On the other hand, the drive sheave 3a is arranged to protrude into the hoistway 1,
The correspondence between the car 11 and the counterweight 10 with respect to the hanging center spacing is adjusted by superimposing the second hanging sheave 7 and the driving sheave 3a on the horizontal projection plane. By arranging the sheaves such as the driving sheave 3a and the second hanging sheave 7, the first and second deflection sheaves 4 and 5 in FIG. 1 are omitted, and the erection of the main rope 9 is simplified. It can be easily installed in a narrow space and manufacturing costs can be reduced.

As explained above, in this invention, the hoisting machine is installed in the machine room adjacent to the lower part of the hoistway, the drive sheave is made to protrude into the hoistway, and the cable groove is arranged in the direction along the side of the car in a plane. To realize a basement type elevator in which a main rope can be easily constructed, a narrow space can be effectively used to easily install the elevator, and the elevator can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view conceptually showing a conventional basement type elevator, and Fig. 2 is a vertical side view conceptually showing a conventional basement type elevator.
FIG. 3 is a cross-sectional plan view of the main part of FIG. 2. 1... Hoistway, 2... Machine room, 3... Hoisting machine,
3a...driving sheave, 11...basket. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] A main rope is wound around the drive sheave of the hoist installed at the bottom of the hoistway, and one side of the main rope is wound around a car-side hanging sheave that is pivoted at the top of the hoistway to suspend the car. The other side of the main rope is attached to a machine room located adjacent to the lower part of the hoistway in an elevator in which a counterweight is suspended by being wrapped around a weight-side hanging wheel pivotally mounted on the upper part of the hoistway. and a hoisting machine installed in the machine room, with a driving sheave protruding into the hoistway, disposed in a plane between the car and the hoistway wall, and with the cable groove direction oriented along the side surface of the car. and a main rope that is wound around the driving sheave of the hoist, one side of which is wound directly around the car side hanging wheel, and the other side of which is wound directly around the weight side hanging wheel. Features a basement type elevator.