JPH0569043U - Elevator guide shoe extension mechanism - Google Patents

Abstract

(57) [Summary] [Structure] The guide rails 5 and 6 arranged along the hoistway 7 for guiding the car 1, and the guide rails 5 and 5.
Guide shoes 8 and 9 slidably engaged with 6 and guide shoe supporting members 11 and 1 that support the guide shoes 8 and 9 and are slidably attached to the car 1.
8 and urging members 15 and 20 for applying the urging force to the guide shoe support members 11 and 18 to extend them at least in one of the ascending direction and the descending direction of the cars 11 and 18, and the guide shoes. The guide shoes 8 and 9 are moved to the car 1 side when a force against the biasing force acts on the guide shoes 8 and 9. [Effect] The car 1 travels stably, and the riding comfort for the passengers inside is improved. Further, even if the car 1 collides with the ceiling 21 of the hoistway 7 or the floor surface 22 of the pit room due to an accident, it will not be damaged.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an elevator guide shoe extending mechanism in which a guide shoe engaged with an elevator guide rail is extended in a car.

[0002]

[Prior Art]

 As a conventional elevator, for example, there is one as shown in FIG. In the figure, reference numeral 101 is an elevator car that moves up and down in the hoistway of a building. One end of a main rope 102 is fixed to the car 101, and the other end of the main rope 102 is It is fastened to a counterweight 105 via a hoisting sheave 103 and a deflecting sheave 104. As shown in FIG. 6, a pair of guide rails 106 and 107 are arranged on both sides of the car 101, and guide shoes 108 and 109 attached to the upper and lower ends of the car 101 are slid on the guide rails 106 and 107, respectively. Dynamically engaged.

When the hoist (not shown) rotates the hoisting sheave 103 with a driving force equivalent to the weight of the unbalanced load between the car 101 and the counterweight 105, the car 101 is guided by the guide rails 106. Ascend or descend along.

[0004]

[Problems to be solved by the device]

 By the way, recently, as the building has become super high-rise, the elevator hoistway installed in it has become longer. In such elevators, the speed of raising and lowering the car is also increased in order to perform this operation quickly. Therefore, in order to allow the car 101 to travel stably along the guide rails 106 and 107, it is desirable to extend the guide shoes 108 and 109 upward or downward from the car 101, respectively. When a car is hung by a rope from the back or side of it, such as a back-plunger elevator or hydraulic elevator, an unbalanced load from the car is applied to the guide rails that guide the car up and down. As a result, there was a problem that a large frictional force was applied to the guide shoe.

On the other hand, when an accident or the like occurs during operation of the elevator and the counterweight 105 falls, the car 101 collides with the ceiling 110 of the hoistway. Here, if the guide shoe 108 attached to the car 101 extends upward from the car 101, the guide shoe 108 reaches the ceiling 110 of the hoistway and eventually collides. The guide shoe 108 will be damaged. Further, when the car 101 falls and collides with the floor surface 111 of the pit room, if the guide shoe 109 attached to the lower end side of the car 101 is extended downward, this guide shoe is the same as above. 109 will be damaged. As a result, when restarting the elevator after an accident, the damaged guide shoes 108, 109 must be replaced.

The present invention provides stable running of a car along a guide rail at a high speed and improves passenger comfort, and the car collides with the ceiling of the hoistway or the floor of the pit room. The objective is to provide an elevator guide shoe extension mechanism that does not damage the guide shoes.

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, in the present invention, a guide rail arranged along a hoistway for guiding a car and a guide shoe slidably engaged with the guide rail. And a guide shoe support member that supports the guide shoe and is slidably attached to the car, and applies a biasing force to the guide shoe support member in at least one of the upward direction and the downward direction of the car. A biasing member for giving and extending the guide shoe, and when a force against the biasing force acts on the guide shoe, the guide shoe moves to the car side through the guide shoe supporting member. To do.

[0008]

Since the guide shoe support member is urged by the urging member in at least one of the ascending direction and the descending direction and extends, the guide shoe is located at a position apart from the car in the upward and downward directions. Therefore, even if the car ascends or descends at high speed along the guide rails, the car will run stably and the passengers in the car will feel comfortable.

On the other hand, even if the guide shoe attached to the car collides with the ceiling of the hoistway or the floor surface of the pit room, the guide shoe is supported by the guide shoe support member slidably attached to the car. Since it exists, it will not be damaged just by moving to the car side.

[0010]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings. 1 to 4 are views showing an embodiment of a guide shoe extending mechanism of an elevator according to the present invention.

In FIG. 1, reference numeral 1 is an elevator car, and the car 1 is fixed and supported by a car frame member 2 framed in a substantially rectangular shape. One end of a main rope 4 is fixed to the crosshead channel 3 of the car frame member 2, and the other end of the main rope 4 is balanced by a hoisting sheave and a deflector as in the above-mentioned conventional example. Is fastened to.

On both sides of the car 1, a pair of guide rails 5 and 6 are arranged along the hoistway 7, and guide shoes 8 and 9 having a substantially U-shaped cross section are slid on the guide rails 5 and 6. It fits freely. The guide shoes 8 and 9 are extended from the upper and lower ends of the car 1 in the upward and downward directions, respectively. That is, as shown in FIGS. 2 to 4, a guide shoe support member 11 having a substantially U-shaped cross section slides vertically in the upright channel 10 having a substantially U-shaped cross section in the car frame member 2. The upright channel 10 has a pressing plate 12 fixed thereto to prevent the guide shoe support member 11 from coming off. A guide shoe holding member 14 is fixedly mounted on a support / support base plate 13 fixed to the upper end of the guide shoe supporting member 11, and a guide shaft 8 fixed to the guide shoe holding member 14 is attached to the guide shoe holding member 14. It is rotatably supported via. Therefore, even if the guide rail 5 is slightly curved, the guide shoe 8 can slide following the guide rail 5.

A compression spring 15 is provided between the crosshead channel 3 of the car frame member 2 and the support base plate 13 so as to extend the guide shoe support member 11 upward from the upright channel 10 at all times. There is.

On the other hand, as shown in FIG. 1, a safety 16 for abnormally stopping the car 1 is provided at the lower end of the upright channel 10, and an upright channel 17 is extended downward from the safety 16. There is. A guide shoe supporting member 18 is slidably fitted to the lower upright channel 17, and the guide shoe 9 is attached to the guide shoe supporting member 18 via a guide shoe holding member 19. A compression spring 20 is contracted between the guide shoe holding member 19 and the safety 16 so that the guide shoe holding member 19 always extends downward from the upright channel 17.

Since the guide shoe support members 11 and 18 are urged and extended by the compression springs 15 and 20 in the ascending and descending directions, the guide shoes 8 and 9 extend from the car 1 in the vertical direction. It is located away from. Therefore, even if the car 1 rises or descends at high speed along the guide rails 5 and 6, the car 1 travels stably and the passengers inside are comfortable to ride.

On the other hand, when the guide shoe extension mechanism is applied to a back-plunger type elevator, a hydraulic type elevator, etc., the guide shoes 8 and 9 are located away from the car 1, so that an unbalanced load from the car is generated. Even if is applied to the guide rail, the frictional force applied to the guide shoe is reduced.

By the way, when an accident or the like occurs and the counterweight falls, the car 1 rises and the guide shoes 8 attached to the car 1 reach the ceiling 21 of the hoistway and finally collide. .. At this time, since the guide shoe 8 is supported by the guide shoe support member 11 slidably fitted in the upright channel 10, even if it collides with the ceiling 21, it only moves to the car 1 side. And there is nothing that would damage it. As a result, there is no need to replace the guide shoes when restarting the elevator after an accident.

On the other hand, even when the car 1 falls and collides with the floor surface 22 of the pit room, the guide shoe 9 has a guide shoe support member 18 slidably fitted in the upright channel 17. Since it is supported by the car, even if it reaches the floor surface 22 and eventually collides, it will move to the car 1 side as well and will not be damaged.

[0019]

[Effect of the device]

 As described above, according to the present invention, since the guide shoe is extended in at least one of the upward direction and the downward direction of the car through the guide shoe support member, the car is quickly moved along the guide rail. When the car ascends or descends, the car will remain stable and comfortable for passengers inside. On the other hand, when applied to back-plunger type elevators and hydraulic type elevators, the frictional force applied to the guide shoe is reduced and the output of the hoisting machine is improved.

Further, even if the car collides with the ceiling of the hoistway or the floor surface of the pit room due to an accident, the guide shoe only moves to the car side and is not damaged. As a result, there is no need to replace the guide shoes when restarting the elevator after an accident.

[Brief description of drawings]

FIG. 1 is a front view of a car provided with an elevator guide shoe extension mechanism according to the present invention.

FIG. 2 is an enlarged front view of a portion viewed from an arrow A in FIG.

FIG. 3 is an enlarged side view of a portion viewed from an arrow A in FIG.

FIG. 4 is an enlarged cross-sectional view taken along arrow A in FIG.

FIG. 5 is a front view showing the entire conventional elevator.

FIG. 6 is a front view showing a conventional elevator car.

[Explanation of symbols]

1 ... Basket, 5, 6 ... Guide rail, 8, 9 ... Guide shoe, 11, 18 ... Guide shoe support member, 15, 20 ...
Energizing member.

Claims (1)

[Scope of utility model registration request] 1. A guide rail disposed along a hoistway for guiding a car, a guide shoe slidably engaged with the guide rail, and supporting the guide shoe and supporting the car. A guide shoe support member slidably attached; and a biasing member that extends the guide shoe support member by applying a biasing force in at least one of the upward direction and the downward direction of the car, A guide shoe extending mechanism for an elevator, wherein the guide shoe moves to the car side through the guide shoe support member when a force against the biasing force acts on the shoe.