JP2500858Y2 - Elevator car safety device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for an elevator car, and more particularly to a safety device for an elevator car having an improved connecting structure between a governor device, an emergency stop device and a car frame.

[0002]

2. Description of the Related Art A conventional car frame in an elevator has a certain gap between the sliding surfaces of a pair of left and right guide rails for guiding the car as it moves up and down, that is, a certain gap with respect to the rail gauge. It is structured to be retained. In addition, an elevator car safety device that stops the car by operating an emergency stop device through the operation of a governor device installed in the hoistway when the car receives an abnormal speed or a large impact The emergency stop device is held with a slight clearance from the guide rail, and a pulling rod for operating the emergency stop device is connected to the governor rope via a governor rope holding lever. The governor rope holding lever has a rotating shaft, which is rotatably supported on the upper portion of the car frame. More specifically, it is rotatably supported on the upper frame outside a certain distance from the front of the car frame, and thus the car front dimension and the rail gauge have a close relationship.

[0003]

[Problems to be Solved by the Invention] However, when attempting to update a car or a car frame while leaving the existing guide rails of the elevator, the existing rail gauge may differ even if the elevator has the same car frontage dimension. Yes, it is difficult to standardize the design of the car frame according to the rail gauge, and it is difficult to standardize the design, and it is also difficult to prepare parts because the individual management system is required. It will be a production for each.

An object of the present invention is to provide a safety device for an elevator car, which can have one kind of car frame regardless of the rail gauge as long as it has the same frontage dimension.

[0005]

In order to achieve the above object, the present invention forms a long hole in the direction of the frontage of a car and supports the rotating shaft arranged in the long hole to support the upper frame. It is characterized in that an adjusting plate fixed so as to be movable in the direction of the car frontage is provided.

[0006]

Since the safety device for the elevator car according to the present invention is constructed as described above, the rotating shaft of the governor rope holding lever can be supported at a predetermined position in the elongated hole by moving the adjusting plate in the front direction. Therefore, with the same frontage dimension, one type of car frame can be used for different rail gauges.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a safety device for an elevator car according to an embodiment of the present invention, for transmitting the operation of a governor device (not shown) for detecting an abnormal speed of the car 1 to the car 1. The governor rope of is installed in the hoistway via a governor device installed in the elevator machine room located above and a pit pulley (not shown) installed in the hoistway pit section located below. The end portion is connected to the governor rope holding lever 4 so that the governor rope 5 can also move in accordance with the raising and lowering of the car 1. Governor rope holding lever 4
Has a rotary shaft 4a, and this rotary shaft 4a is mounted on the upper frame 2a of the car frame 2 and has a bearing 1 of an adjusting plate 3 attached thereto.
Supported by 0. Further, a pulling rod 6 is connected to the governor rope holding lever 4 at a position different from that of the governor rope 5, and the other end of the pulling rod 6 is connected to an emergency stop device 7 provided at a lower portion of the car frame 2. ing. Now, when the elevator descends at an abnormal speed, the governor device operates so as to grasp the governor rope 5, while the car 1 is descending at an abnormal speed, so the rotating shaft 4a of the governor rope holding lever 4 descends. While rotating clockwise. At this time, governor rope holding lever 4
Operates the emergency stop device 7 via the pulling rod 6 and mechanically stops the car 1 by the friction between the rail grasping portion 9 and the guide rail 8.

In general, since the frontage of a car and the rail gauge are not necessarily in a fixed relationship, when remodeling an existing elevator, even if the frontage of the car is the same, the upper frame of the car frame 2 is the same. 2a cannot be the same. 2 is a developed perspective view showing a support portion of the rotary shaft 4b of the governor rope holding lever 4 of FIG. 1, and the same components as those in FIG. 1 are designated by the same reference numerals. The upper frame 2a of the portion through which the rotary shaft 4a of the governor rope holding lever 4 penetrates is provided with a long hole 11 that is adjustable in the front direction of the elevator and that does not interfere with the bearing 10 and that fixes the adjusting plate 3. There is provided a long hole 12 that can be adjusted in the frontal direction. If the front dimensions of the car are the same but the rail gauges are different, the fixing bolts 13 of the adjustment plate 3
The adjustment shaft 3 and the rotary shaft 4a into the long hole 11
Adjust the mounting position by moving it in the frontage direction, and then
Since it suffices to tighten the fixing bolts 13 again, one type of governor rope holding lever 4 and one type of upper frame 2a of the car frame 2 can be used.

In the above embodiment, the long hole 12 is formed in the upper frame 2a.
The holes corresponding to the fixing bolts 13 are formed in the adjusting plate 3, but the holes corresponding to the fixing bolts 13 are formed in the upper frame 2a, and the elongated holes are formed in the adjusting plate 3 corresponding to the holes. May be.

[0011]

As described above, according to the present invention, the adjusting plate for supporting the rotating shaft of the governor rope holding lever is fixed to the upper frame of the elevator car frame, and the adjusting plate is movable in the frontage direction. , If the car frontage dimensions are the same, even if the rail gauges are different, the adjustment plate supporting the governor rope holding lever can be adjusted in the car frontage direction. The production and management department can be standardized.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view showing an essential part of FIG. 1 in an expanded manner.

[Explanation of symbols]

 1 Car 2 Car cage 2a Upper frame 3 Adjustment plate 4 Governor rope holding lever 4a Rotating shaft 11 Long hole

Claims (1)

(57) [Scope of utility model registration request] 1. An elevator car having a governor rope holding lever rotatably supporting a rotary shaft on an upper frame of a car frame, and a governor device and an emergency stop device being connected via the governor rope holding lever. In the safety device of
An elongated plate is formed in the upper frame in the direction of the car frontage, and an adjustment plate fixed to the upper frame so as to be movable in the direction of the car front is provided to support the rotary shaft arranged in the elongated hole. Elevator car safety device characterized by.