阅读说明：本技术 电梯装置 (Elevator device ) 是由 岛林启太 柳田笃史 本村晃一 浅村知洋 渡部泰央 渡边纮平 于 2017-04-26 设计创作，主要内容包括：在电梯装置中,在引导轿厢以及对重的多个导轨中的至少任意一方支承有机座。在机座支承有具有驱动绳轮的曳引机。曳引机配置于井道的上部。在井道的底部设置有基座,该基座载置有支承机座的导轨中的至少任意一方。在基座设置有下部返绳轮。悬吊轿厢以及对重的索状体卷绕于驱动绳轮以及下部返绳轮。(In an elevator apparatus, a machine frame is supported by at least one of a plurality of guide rails for guiding a car and a counterweight. A hoisting machine having a drive sheave is supported by the machine base. The traction machine is arranged at the upper part of the hoistway. A base is provided at the bottom of the hoistway, and at least one of guide rails supporting the machine base is placed on the base. The base is provided with a lower return rope wheel. A rope body for suspending the car and the counterweight is wound around the drive sheave and the lower return sheave.)

1. an elevator device is provided with:

A car and a counterweight that can move vertically in a hoistway;

A plurality of guide rails that guide the car and the counterweight;

a base supported by at least one of the plurality of guide rails;

A hoisting machine having a drive sheave, supported by the machine base, and disposed at an upper portion of the hoistway;

A base which is provided at the bottom of the hoistway and on which at least one of the guide rails supporting the machine base is placed;

A lower return sheave provided on the base; and

And a rope-like body wound around the drive sheave and the lower return sheave to suspend the car and the counterweight.

2. The elevator arrangement according to claim 1,

The guide rails mounted on the base are a first counterweight guide rail and a second counterweight guide rail that guide the counterweight,

when the base is viewed from above, the lower return sheave overlaps a straight line passing through the first counterweight guide rail and the second counterweight guide rail.

3. the elevator arrangement according to claim 1,

the guide rails mounted on the base are a first counterweight guide rail for guiding the counterweight and a first car guide rail for guiding the car,

The lower return sheave is disposed at a portion of the base between the first counterweight guide rail and the first car guide rail.

4. The elevator device according to any one of claims 1 to 3,

an opening portion that opens upward is provided in a portion of the base where the lower return sheave is provided.

5. the elevator arrangement according to claim 4,

The open portion is a slot that is open,

The lower return sheave is housed inside the open portion in a width direction of the open portion when viewed from above.

6. The elevator apparatus according to any one of claims 1 to 5,

The counterweight is disposed on a back side of the car when the hoistway is viewed from above,

The plurality of guide rails are first and second counterweight guide rails guiding the counterweight and first and second car guide rails guiding the car,

The base has: a first beam fixed to the first counterweight guide rail and the second counterweight guide rail; a second beam fixed to the first beam and the first car guide rail; and a third beam fixed to the first beam and the second car guide rail,

The hoisting machine is supported by the first beam.

Technical Field

The present invention relates to an elevator apparatus in which a hoisting machine is installed in an upper portion of a hoistway.

Background

conventionally, a machine room-less elevator apparatus is known which does not have a machine room by disposing a hoisting machine in a hoistway.

Conventionally, there has been proposed a machine room-less elevator apparatus including: a top sheave is attached to a support member fixed to the upper portion of each of the car guide rail and the counterweight guide rail, a diverting pulley is attached to a support table fixed to the intermediate portion of the counterweight guide rail, and the car and the counterweight are suspended by a main rope looped around the top sheave and the diverting pulley (see, for example, patent document 1).

disclosure of Invention

Problems to be solved by the invention

However, in the conventional elevator apparatus shown in patent document 1, since the support base on which the diverting pulley is mounted is fixed to the intermediate portion of the counterweight guide rail, the moment applied to the intermediate portion of the counterweight guide rail becomes large, and the counterweight guide rail becomes large in size. This makes it impossible to save the space of the hoistway and increases the cost.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain an elevator apparatus capable of saving space in a hoistway.

Means for solving the problems

An elevator device of the present invention includes: a car and a counterweight that can move vertically in a hoistway; a plurality of guide rails that guide the car and the counterweight; a base supported by at least one of the plurality of guide rails; a hoisting machine having a drive sheave, supported by the machine base, and disposed at an upper portion of the hoistway; a base which is provided at the bottom of the hoistway and on which at least one of the guide rails supporting the machine base is placed; a lower return sheave provided on the base; and a rope-like body wound around the drive sheave and the lower return sheave to suspend the car and the counterweight.

Effects of the invention

According to the elevator apparatus of the present invention, the base can be pressed against the bottom of the hoistway by the load applied to the guide rail supporting the machine base, and the upward load applied to the lower return sheave can be supported by the base. This can prevent a moment generated by an upward load applied to the lower return sheave from being applied to the plurality of guide rails, thereby saving the space of the hoistway.

Drawings

Fig. 1 is a perspective view showing an elevator apparatus according to embodiment 1 of the present invention.

Fig. 2 is a plan view showing the elevator apparatus of fig. 1.

fig. 3 is a front view showing a state when the counterweight side is viewed from the car side of fig. 2.

Fig. 4 is a plan view showing the base of fig. 1.

fig. 5 is a plan view showing the rail supporting member of fig. 1.

Fig. 6 is a plan view showing an elevator apparatus according to embodiment 2 of the present invention.

fig. 7 is a front view showing a state when the counterweight side is viewed from the car side of fig. 6.

Fig. 8 is a perspective view showing a bottom portion of the hoistway of fig. 7.

Fig. 9 is a plan view showing the base of fig. 8.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.