JPH05254755A - Elevator safety equipment - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] SDS, E in high-speed and ultra-high-speed elevators
There was a risk that passengers in the car could hear the collision sound between the TS and the operating cam. [Structure] SDS (Normal terminal floor speed reducer 1AD to 1B
U), ETS (emergency end floor speed reducers 2AD to 2BU) are installed on the hoistway side of the counterweight, an operating cam is installed on the counterweight, and the balance weight is moved up and down to SD.
Operate the S and ETS switches. [Effect] The collision noise between the levers of the SDS and ETS switches and the operating cam is no longer heard by passengers in the car.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger in a car in an elevator that moves up and down at a high speed and receives the sound of the normal terminal floor speed reducer (SDS) or the terminal forced speed reducer (ETS) colliding with an operating cam. The present invention relates to an elevator safety device having a structure inaudible to people.

[0002]

2. Description of the Related Art An SDS is installed in an elevator, and an ETS is installed especially in an elevator with a high speed and a shortened buffer.
Is installed. These SDS and ETS are installed by mounting a switch box containing a plurality of switches on a car, and mounting a long actuating cam on the hoistway side to operate by ascending and descending the car.

[0003]

In the prior art, the operating cam mounted on the hoistway side of high-speed and ultra-high-speed elevators becomes longer in proportion to the speed of the elevator, which requires much time for installation and accuracy. become worse.
Therefore, it is necessary to increase the tilt angle of the actuating cam, but the collision noise when the actuating cam contacts the switch is large,
There was a problem in that passengers in the car could hear the collision noise and feel discomfort and anxiety.

It is an object of the present invention to provide an elevator safety device installed in a position where the passengers cannot hear the collision noise between the SDS, ETS and the actuating cam in a high speed or ultra high speed elevator.

[0005]

In order to achieve the above object, SDS and ETS are installed on the hoistway side of a counterweight. In addition, the operating cam is attached to the counterweight so that it operates at a position away from the car.

[0006]

In the elevator safety device of the present invention, the SD for raising is used.
Since S and ETS are located on the lower side on the counterweight side and on the lower side on the counterweight side for descending, passengers in the car can hear the collision sound between the SDS, ETS and the operating cam. ..

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a side view of an elevator having an elevator safety device according to the present invention.

In FIG. 1, reference numeral 4 is a hoist driven by an electric motor, and 5 is a car 7 at which the counterweight 3 is raised or lowered.
6 is the main measure for connecting the balance car 3 to the car 7 via the hoist 4, and 11 is the balance car 3 and the car 7 located at the bottom of the hoistway 12. A balancing rope connected via a balancing vehicle 10, a control cable 8 for signal transmission between the car 7 and the control panel in the machine room, and power supply, and 1AD-1BU SDS for decelerating and stopping near the end floor. A switch structure for switching and holding with a switch, 2AD to 2BU is a switch structure for switching and holding with an ETS switch that performs forced deceleration near the end floor at abnormal speed, 9 is installed on the counterweight 3, and SDS 1AD to 1BU, ETS2AD ~ 2BU
It is an actuating cam that actuates and. Counterweight 3
Goes down if the car 7 goes up, and goes up if the car 7 goes down. Therefore, SDS1AD ~ 1BU and ET
The S2AD to 2BU are installed in the hoistway side of the counterweight with the arrangement opposite to that when the working cam was installed in the conventional car 7 and operating. When the elevator is abnormal, the actuating cam 9 mounted on the counterweight 3 operates the switches SDS1AU, 1BU when the car is moving up, and SDS1AD, 1BD when the car is moving down, so that the elevator safely decelerates to the end floor and stops. When the car is abnormal, the operating cam 9 attached to the counterweight 3 causes ETS2AU and 2BU when the car is moving up, and ETS2 when the car is moving down.
By operating the AD and 2BD switches, the vehicle is decelerated forcibly near the end floor. At that time, since the car is far away, the collision noise between the actuating cam and the lever cannot be heard.

In this embodiment, the SDS1AD to 1BU and the ETS2AD to 2BU are described to be installed on the hoistway side of the counterweight, but the SDS1AD to 1BU and the ETS2AD to 2BU may be mounted on the guide rail of the counterweight 3. ..

[0010]

The elevator safety device of the present invention is SD
Since the S and ETS are installed on the hoistway side of the counterweight and operated by the operating cam attached to the counterweight, the passengers in the car will not be able to hear the collision sound between the operating cam and the lever of the SDS and ETS switches.

[Brief description of drawings]

FIG. 1 is a side view of an elevator safety device according to an embodiment of the present invention.

[Explanation of symbols]

1AD to 1BU ... Normal terminal floor deceleration stop device (SDS),
2AD to 2BU ... Emergency terminal floor deceleration stop device (ETS),
3 ... Counterweight, 4 ... Hoisting machine, 5 ... Deflection car, 6 ...
Main measures, 7 ... Car, 8 ... Control cable, 9 ... Actuating cam, 10 ... Balanced vehicle, 11 ... Balanced rope, 12 ...
Hoistway, 12a ... Side wall on the counterweight side in the hoistway.

Claims (3)

[Claims] 1. An elevator apparatus comprising a car and a counterweight, which drives a motor to raise and lower the car in a hoistway through sheaves and main ropes. In the elevator device having a normal terminal floor deceleration stop device that safely decelerates and stops, an abnormal speed is detected near the end floor, and an end floor forced deceleration device that performs forced deceleration, on the hoistway side of the counterweight, the normal An elevator safety device comprising a terminal floor speed reducer, the terminal forced speed reducer installed, and the counterweight having an operating cam for operating the normal terminal floor speed reducer and the terminal forced speed reducer. 2. The elevator safety device according to claim 1, wherein the normal terminal floor reduction gear and the terminal forced reduction gear are attached to guide rails of the counterweight. 3. The elevator safety device according to claim 1, wherein each switch of the normal terminal floor speed reducer and the terminal forced speed reducer is a switch holding type switch.