JPH0772068B2 - Main roll steady rest device of elevator - Google Patents

Description

The present invention relates to an elevator main rope steady rest device suitable for use in an outdoor elevator.

[Conventional technology]

Generally, in elevators used outdoors, if the moving stroke becomes long, the main rope may be fanned by the wind, and it may become inoperable due to contact with various equipment installed in the elevator. It is equipped with a main rope steadying device that prevents shaking.

Conventionally, a main rope steady rest of this type of elevator is disclosed in Japanese Examined Patent Publication No. 33-5922, and is constructed as shown in FIGS. 5 and 6. This will be schematically described with reference to the same figure. In the figure, the reference numeral 1 indicates an elevator hoistway having a pedestal 2 projecting from an intermediate portion of its hoistway wall 1a, and 3 is this hoistway. 1 is a vehicle basket vertically movably provided and suspended by a main rope 4 and having a pedestal 5 on its upper portion, and 6 is a frame 6a through which the main rope 4 is inserted.
And a rope which has supporting arms 6b provided on both sides of the frame 6a and can be placed on the cradle 5 on the side of the vehicle car 3 and the cradle 2 on the hoistway 1 side via cushion rubbers 7 and 8, respectively. It is a steady rest member.

In the elevator main rope steadying device configured as described above, when the vehicle basket 3 rises and the cradle 5 abuts the support arm 6b of the rope steadying member 6 via the buffer rubber 7 during elevator operation, The rope steadying member 6 rises with the vehicle basket 3.

On the other hand, when the vehicle basket 3 descends from this state and the support arm 6b of the rope steadying member 6 contacts the pedestal 2 via the cushioning rubber 8, only the vehicle basket 3 descends.

[Problems to be solved by the invention]

By the way, in the conventional elevator main rope steady rest, the rope steady rest 6 and the cradle 5 on the side of the vehicle car 3 or the rope steady rest 6 and the cradle 2 on the side of the hoistway 1
The shocks generated when and collide with each other are absorbed by the cushioning rubbers 7 and 8.

However, as the height of elevators rises with the rise of buildings in recent years, the impact cannot be sufficiently absorbed by the cushioning rubbers 7 and 8 alone, which causes a problem of making a loud collision noise. there were.

Therefore, it is conceivable that a cushioning device such as a cylinder is provided on the vehicle basket 3 and the hoistway wall 1a instead of the cushioning rubbers 7 and 8, but a long cylinder stroke is required to absorb the impact at the time of a collision. However, there is an inconvenience that the shock absorber becomes large.

The present invention has been made in view of such circumstances, and it is possible to suppress the impact sound due to the collision between the rope steadying member and the vehicle, and between the rope steadying member and the pedestal on the hoistway side, and the shock absorber is used. In some cases, the present invention provides a main rope steady rest device for an elevator, which can be downsized.

[Means for solving problems]

A main rope steady rest device for an elevator according to the present invention operates an elevator speed switching device at a lower position of a pedestal on a hoistway wall and a side part of a vehicle car, respectively when the vehicle car is raised and when it is lowered. A switch for detecting the position of the vehicle cage is provided, and on the other side, a cam surface is formed to press the switch actuator as the vehicle moves up and down, and between the pedestal on the hoistway wall and the rope steadying member. A cushioning cylinder is provided between the vehicle basket and the rope steadying member.

[Action]

In the present invention, when the elevator car that moves up and down by the main rope in the hoistway moves up and approaches the rope steady member mounted on the pedestal in the middle of the hoistway, For detecting the position provided on the car and hoistway wall when the rope steady member approaches the pedestal in the middle of the hoistway while descending with the rope steady member placed on the top of the car The state is detected by the switch and the cam surface that operates this, and the elevator cage lowering speed lowers the vehicle cage and the rope steadying member, or this rope steadying member collides with the pedestal on the hoistway wall. It is possible to reduce the impact and the collision noise due to the above.

In particular, according to the present invention, at the time of the above-mentioned collision, the speed control of the elevator and the interposition between the vehicle cage and the rope steadying member and further between the rope steadying member and the pedestal on the hoistway wall are performed. The shock absorbing cylinder and the shock noise caused by the collision can be further alleviated and absorbed by the cushioning cylinder provided.

〔Example〕

1 and 2 are a cross-sectional view and a plan view showing a main rope steady rest device of an elevator according to the present invention, and the same members as those in FIG. 5 and FIG. However, detailed description is omitted. In the figure, reference numerals 21 and 22 are position detecting switches, which are located on both sides of the main rope 4 and have their mounting positions vertically different from each other below the receiving table 2 on the hoistway wall 1a. Is provided. Denoted at 23 and 24 are pressing members having cam surfaces 23a and 24a, respectively, which are provided on both sides of the vehicle cage 3, and the switch 2 is moved when the vehicle cage 3 is moved up and down.
The actuators 21a, 22a of 1, 22 are configured to be pressed. The actuators 21a and 22a of these two switches have a cam surface 23a which is the actuator 21a of the switch 21 when the elevator is moving up, and a cam surface 24a which is the actuator 22a of the switch 22 when the elevator is moving down.
And is always urged in the direction opposite to the pressing direction. Cylinders 25 and 26 are provided as shock absorbers, which are respectively installed on the pedestal 2 on the side of the hoistway 1 and the upper portion of the vehicle basket 3 so as to reduce the impact when the rope steadying member 6 is abutted. Is configured.

In the elevator main rope steady rest constructed as described above, the cylinder 25 collides with the support arm 6b of the rope steadying member 6 due to the rise of the vehicle basket 3. At this time, as shown in FIG. The surface 23a presses the actuator 21a of the switch 21 to press the elevator speed switching device (not shown).
Is activated, and the elevator speed before the collision can be reduced.

On the other hand, when the vehicle basket 3 descends from this state, the rope steadying member 6 also descends and the support arm 6b collides with the cylinder 26 on the pedestal 2. At this time, as shown in FIG. 24a presses the actuator 22a of the switch 22 to operate an elevator speed switching device (not shown), and the elevator speed before the collision can be reduced as described above.

Therefore, during the operation of the elevator, the impact due to the collision between the support arm 6b of the rope steadying member 6, the pedestal 2 on the hoistway wall 1a and the support arm 6b of the rope steadying member 6 and the upper portion of the vehicle basket 3 is sufficiently mitigated. can do. Further, by using the cushioning cylinders 25 and 26 as a cushioning device, the cushioning function can be exhibited and the moving stroke thereof can be shortened.

In the present embodiment, the switches 21 and 22 are provided below the pedestal 2 on the hoistway wall 1a, and the pressing members 23 and 24 are provided on both sides of the vehicle car 3. However, the present invention is not limited to this. However, the switches 21, 22 are provided on the side of the vehicle basket 3 without being limited thereto.
Even if the pressing members 23 and 24 are provided on the hoistway wall 1a below the pedestal 2, the same effect as that of the embodiment can be obtained. That is, in short, it suffices that the switches 21 and 22 are provided on one of the lower portion of the pedestal 2 on the hoistway wall 1a and the vehicle car 3 and the pressing members 23 and 24 are provided on the other.

Further, in this embodiment, the cam surface is provided on the side of the vehicle basket 3.
Although the case where the pressing members 23 and 24 having 23a and 24a are provided has been shown, the present invention is not limited to this, and it goes without saying that the cam surfaces 23a and 24a may be directly formed on the side portions of the vehicle car 3. is there.

〔The invention's effect〕

As described above, according to the present invention, a vehicle in which the elevator speed switching device is operated on either the lower side of the pedestal on the hoistway wall or the side portion of the vehicle car when the vehicle is ascending and descending, respectively. A switch for detecting the position of the car is provided, and on the other side, a cam surface is formed that presses the switch actuator as the car moves up and down, and between the pedestal on the hoistway wall and the rope steadying member. Since a cushioning cylinder is provided between the car and the rope steadying member, when the elevator car that moves up and down by the main rope is moving up in the hoistway, it is received in the middle of the hoistway. The rope steady member moves up and down when it comes close to the rope steady member mounted on the platform, or when the rope steady member is descending with the rope steady member placed on the upper part of this car. When close to the middle of the cradle, detects the state by the cam surface for actuating a vehicle car hoistway wall and to provided a position detecting switch and this can reduce the lifting speed of the elevator. Therefore,
To sufficiently absorb the shock caused by the collision between the upper part of the car and the support arm of the rope steadying member, or the support arm of the rope steadying member and the pedestal on the hoistway wall during the elevator operation. It is possible to reliably suppress the collision noise due to this collision.

In particular, according to the present invention, at the time of the above-mentioned collision, the speed control of the elevator is performed, and the space between the vehicle cage and the rope steadying member and further between the rope steadying member and the pedestal on the hoistway wall are damped. Since the work cylinder is provided, it is possible not only to further alleviate and absorb the impact and collision sound caused by the collision with the rope steadying member during the elevator raising / lowering operation described above, but also to move the cushioning cylinder. It is possible to reduce the stroke, and there is an advantage that the cushioning cylinder can be downsized.

[Brief description of drawings]

1 and 2 are a sectional view and a plan view showing a main rope steadying device for an elevator according to the present invention, and FIGS. 3 and 4 are sectional views for explaining an operating state thereof, FIG. 5 and FIG. FIG. 6 is a sectional view and a plan view showing a conventional main rope steady rest device of an elevator. 1 ... hoistway, 1a ... hoistway wall, 2 ... pedestal, 3 ... vehicle basket, 4 ... main rope, 6 ... rope steadying member,
21,22 …… Switch, 21a, 22a …… Operator, 23,24 …… Pressing member, 23a, 24a …… Cam surface.

Claims (1)

[Claims] Claim: What is claimed is: 1. An elevator main rope steady rest device comprising a pedestal on an hoistway wall and a rope steadying member that can be placed on an upper portion of a vehicle basket, wherein the elevator main rope is inserted. Either one of the lower part of the upper pedestal and the side part of the vehicle car is provided with a switch for vehicle car position detection for operating the elevator speed switching device when the vehicle car is rising and when it is descending, and the other is provided with the switch. A cam surface that presses the operator of the switch as the vehicle cage moves up and down, and between the pedestal on the hoistway wall and the rope steady member, between the vehicle cage and the rope steady member. A main rope steadying device for an elevator, characterized in that a cushioning cylinder is provided therebetween.