JPS61136889A - Hydraulic 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] [Field of Industrial Application] This invention relates to a hydraulic elevator with a counterweight that raises and lowers a car using a hydraulic jack, and particularly relates to an improvement in the mounting position of the rope guide wheel of the counterweight. .

[Conventional technology]

FIG. 2 is a vertical cross-sectional view of a hoistway showing a conventional hydraulic elevator with a counterweight disclosed in, for example, Japanese Utility Model Application No. 54-55065. In the figure, 1 is a hoistway, 2 is a next car, and 3 is a A hydraulic jack is installed in the hoistway 1 and expands and contracts in the lifting direction of the wooden leg 2, 4 is a counterweight, 5.5 is a guide car installed on the ceiling of the hoistway 1, and the guide car 5,
5 is wrapped with a counterweight row 16,
One hanging end of this rope 6 is connected to the upper end of the car 2, and the other hanging end is connected to a counterweight 4 guided by a guide rail 7.

In the hydraulic elevator configured as described above, the lower car 2 is operated upward by sending pressure oil from a hydraulic power unit (not shown) to the hydraulic jack, and the lower car 2 is operated downward by the weight of the car 2 and the plunger of the hydraulic glossy blanket. This is done by returning the oil in the hydraulic jack to an oil tank (not shown) through a control check pulp or the like. In particular, in a hydraulic elevator with a counterweight, the car 2 and the counterweight 4 are connected by a rope 6 via guides 5, 5 fixed to the ceiling of the hoistway, so only the hydraulic jack 3 is required. The load of the car 2 is reduced by the counterweight without supporting the entire load of the car 2, and driving energy is saved.

[Problem that the invention seeks to solve]

In the conventional hydraulic elevator with a counterweight as described above, the lobe guide wheel 5゜5 for the counterweight is connected to the hoistway 1.
Because the system is suspended from the ceiling of the elevator, a load is applied to the top of the hoistway, requiring reinforcement work such as installing beams in the building. The advantages of the construction were not fully utilized, and there were problems in terms of competition with the building and construction costs.

This invention was made to solve the above-mentioned problems, and l! Eliminate the load of baskets, etc. on the rooftop,
The object of the present invention is to provide a hydraulic elevator that can eliminate the troublesome problems associated with connecting it to a building.

[Means for solving problems]

The hydraulic elevator with a counterweight according to this invention includes:
A guide wheel around which a rope for the counterweight is wrapped is fixed to the upper end of a boot rail that guides the counterweight in the up-and-down direction.

[Effect]

In this invention, the load applied to the guide wheel via the counterweight rope is supported by the guide rail of the counterweight, eliminating the load on the upper part of the building.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, parts that are the same as or equivalent to those in FIG. 2 are given the same reference numerals and omitted, and parts that are different from the conventional ones will be mainly described.

That is, the guide rails 7.7 of the counterweight 4 are disposed parallel and perpendicular to the hoistway 1, and both guide rails 7.
．． 7 allows the counterweight 4 to be guided in the vertical direction, and one of the above-mentioned butt rails 7
A guide wheel 8 is fixed to the upper end, and a rope 6 is wound around the guide wheel 8. One vertical end of the rope 6 is connected to the car 2, and the other vertical end is connected to the counterweight. It is connected to 4.

In a hydraulic elevator with a counterweight configured as shown in , the guide 1'lt8 of the rope 6 connecting the passenger seat 2 and the counterweight 4 is attached to the upper end of the guide rail 7 of the counterweight 4. Therefore, the load applied to the guide wheel 8 via the rope 6 is the load applied to the guide wheel 7.
Therefore, Uke will have. For this reason, the balance load of the car is not applied to the top of the Ii-ya, and furthermore, the guide car is not placed directly above the car as in the past, so the overhead dimension is lower than that of the top of the hoistway. Effective under floors or beams. In addition, the installation of the guide car 8 is not related to the arrangement with the building, and since the guide car is attached to the boot rail arranged during elevator construction, the installation workability is improved and it can be manufactured at low cost.

〔Effect of the invention〕

As described above, according to the present invention, since the guide wheel for the counterweight is fixed to the upper part of the guide rail of the counterweight, the balance load is not applied to the upper part of the building (and The trouble of dealing with the building when installing the guide car can be eliminated, and the installation can be done at low cost and with good workability.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a hoistway showing a hydraulic elevator with a counterweight according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a hoistway showing a conventional hydraulic elevator with a counterweight. 1... hoistway, 2... car, 3... hydraulic jack, 4... counterweight, 6...-rope, 7...
・Buitrail, 8... Guide car. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa (2 idiots) Figure 1 Figure 2 Procedural amendment (voluntary) 1. Indication of the case Patent Application No. 1982-258210 2.
Title of the invention: Hydraulic elevator 3, relationship with the person making the amendment Patent applicant address: 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (601) Moriya Shiki, representative of Mitsubishi Electric Corporation 4, agent: Address: 2-2-3-5 Marunouchi, Chiyoda-ku, Tokyo
, Target of amendment (1) Claims column 5 of the specification, Contents of amendment (1) The claims of the specification are amended as shown in the attached sheet. 7. Attached documents (1) A document stating the entire text of the amended claims. 1 copy. Amended claims 2. Claims: A car that goes up and down in a hoistway; A hydraulic jack that is installed and expands and contracts so that the car can be raised and lowered; a counterweight that is connected to the car via a rope and suspended via a guide wheel; A hydraulic elevator with a counterweight having a guiding guide rail, characterized in that the guide wheel around which the rope is wound is attached to the upper part of the guide rail.

Claims (1)

[Claims] A car that goes up and down in the hoistway, a hydraulic jack that is installed in the hoistway and expands and contracts so that the car can be raised and lowered, and the car and the car are connected to each other via a rope and suspended via a guide wheel. A hydraulic elevator with a counterweight having a counterweight to be lowered and a guide rail for guiding the counterweight in the hoistway direction, characterized in that the guide wheel around which the rope is wound is attached to the upper part of the guide rail. hydraulic elevator.