JPH0442302Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a protection device for an elevator string such as an elevator governor rope or an elevator flexible wire.

[Conventional technology]

Figures 5 and 6 show a conventional protection device for an elevator cord, as shown in, for example, Japanese Utility Model Publication No. 50-2460. Emergency stop device installed, 8
4 is the operating arm of the emergency stop device 2, 4 is the governor, 5 is the governor rope that runs vertically in the hoistway and is formed into a loop, and 5a is the operating arm of the rope 5 that is connected to the operating arm 3. A side rope, 5b is a return side rope on the opposite side to the working arm side rope 5a, 6 is a tension wheel that applies downward tension to the rope 5, and 7 is a working arm side rope 5a.
8a and 8b are provided on both sides of the opening of the operating arm side protection duct 7. A pair of brush-like protective members are provided facing each other and protrude toward the center of the protective duct 7, and the protruding tips thereof touch or are close to each other. 9 is a cylindrical return-side rope protection duct that accommodates the return-side rope 5b. .

The conventional elevator cord protection device is constructed as described above, and in the unlikely event that the operating arm side rope 5a is damaged by the opening of the operating arm side protection duct 7 due to horizontal shaking of the hoistway or wind direction and wind speed in an outdoor elevator. Even if the operating arm side rope 5a tries to jump out from the operating arm side protection duct 7, the brush-like protective members 8a and 8b are installed so as to close this opening, so that the operating arm side rope 5a will not jump out and separate from the operating arm side protection duct 7. Moreover, since the brush-like protective members 8a and 8b are configured in a brush-like manner and are opposed to each other, the operating arm 3 of the emergency stop device 2 can freely pass between them.

[Problem that the invention attempts to solve]

In the conventional elevator cord protection device as described above, the operating arm side rope 5a is connected to the brush-like protection member 8.
In order to prevent the rope 5a from flying out when it collides with the ropes 5a and 8b, the density of the brushes is increased, or the diameter of the brushes is increased to increase the rigidity of the brushes. The materials 8a and 8b are not easy to manufacture and are expensive, and if the brushes are made denser or more rigid, the resistance increases when the brushes come into contact with the operating arm 8, resulting in louder sliding noise. There are other problems.

This invention was made in order to solve these problems.The brush diameter of the brush-like protective material can be made thinner and the density can be made thinner.In addition, it is possible to completely prevent the string from coming off from the protective duct, and it is also possible to To provide a protection device for an elevator cord capable of reducing sliding noise by reducing contact resistance when an arm or the like contacts a brush.

[Means for solving problems]

The elevator string protection device according to this invention fixes the base ends of each of a pair of brush-like protection members, and provides a reinforcing plate whose inner end protrudes toward the center of the protection duct beyond the opening of the protection duct. It is designed to reinforce the protective material.

[Effect]

In this device, the inner end of the reinforcing plate protrudes further toward the center of the protection duct than the opening of the protection duct, so that the string housed in the protection duct is protected against the force that tends to separate it from the protection duct. In this case, the brush-like protective material is reinforced by the reinforcing plate and its rigidity is substantially increased, effectively preventing the string from detaching, and also against the force in the direction in which the actuating arm, etc. passes through the brush-like protective material. In this case, the brush-like protective material is not reinforced by the reinforcing plate, and therefore a large deflection rate is obtained, and it is possible to suppress an increase in the passage resistance of the operating arm, etc. and the increase in sliding noise.

〔Example〕

1 to 4 show an embodiment of this invention, and in the figures, the same reference numerals as in FIGS. 5 and 6 indicate the same or corresponding parts. 10a and 10b are reinforcing plates attached to both sides of the opening end of the operating arm side protection duct 7 with the base ends of the brush-like protection members 8a and 8b clamped and fixed, and the inner ends thereof are shown in FIGS. 2 to 4. As shown in FIG. 2, it protrudes from the inner end of the opening of the operating arm side protection duct 7 toward the center of the protection duct 7 by a required width.
That is, the opening width of the working arm side protection duct 7 is narrowed by the protrusion of the reinforcing plates 10a and 10b.

In the elevator string protection device configured as described above, when the operating arm side rope 5a swings horizontally to the position 5a' and collides with the brush-like protection material 8a or 8b as shown in FIG. The brush-like protective members 8a and 8b are bent outward with the portion A as a fixed point, and come into contact with the inner end portions B of the reinforcing plates 10a and 10b. From this point on, the inner end B becomes the fulcrum of the brush-like protective members 8a, 8b, and therefore the deflection of the brush-like protective members 8a, 8b becomes smaller than in the case where part A is fixed at one point. That is, the same effect as when the rigidity of the brush-like protective members 8a and 8b is increased can be obtained. Therefore, the prevention of the operating arm side rope 5a from jumping out from the opening of the operating arm side protection duct 7 can be strengthened.

On the other hand, when the actuating arm 3 passes between the pair of brush-like protective members 8a and 8b as shown in FIG.
Since the fixed portion of the brush-like protective members 8a, 8b is only the portion A, the contact resistance and sliding noise acting on the operating arm 3 are exactly the same as in the case where the reinforcing plates 10a, 10b are not provided. That is, in this case, the reinforcing plate 10
A and 10b do not have the reinforcing function of the brush-like protective members 8a and 8b.

Note that in the above embodiment, the brush-like protective materials 8a, 8
b and the reinforcing plates 10a, 10b are constructed as separate parts, but the brush-like protective materials 8a, 8b
The reinforcing plates 10a and 10b may be integrally constructed.

Further, in the above embodiment, a protection device for the speed governor rope 5 was explained, but it can also be applied to a protection device for other elevator cords such as a flexible cable of an elevator arranged in a hoistway. Similar effects can be expected.

[Effect of idea]

As explained above, this device fixes the base end of each pair of brush-like protective materials and is provided with a reinforcing plate whose inner end protrudes toward the center of the protective duct beyond the opening of the protective duct, so the density of the brushes increases. It is possible to prevent the cord from separating from the protective duct without increasing the thickness or increasing the rigidity. Therefore, the device becomes less expensive, and there are effects such as being able to reduce the resistance and sliding noise between the pair of brush-like protective members and the elevator equipment passing between them.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing an elevator cord protection device according to an embodiment of this invention, Fig. 2 is an enlarged cross-sectional view taken along the line - - of Fig. 1, and Figs. 3 and 4 are diagrams of this invention. Explanatory diagrams showing the respective functions, and FIG. 5 is a first diagram showing a conventional elevator cord protection device.
FIG. 6 is a sectional view taken along the - line in FIG. 5. 1... Car, 2... Emergency stop device, 3... Operating arm, 5... Governor rope, 5a... Operating arm side rope, 7... Operating arm side protection duct, 8a, 8b...
Brush-like protective material, 10a, 10b...reinforcement plates, and in each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A groove-shaped protective duct that accommodates a part of the cord disposed in the elevator hoistway, and protective ducts provided opposite to each other on both sides of the opening of this protective duct. a pair of brush-like protective materials that protrude toward the center of the protective duct and whose protruding tips touch or are close to each other; A protection device for an elevator string, characterized by comprising a reinforcing plate projecting to the side. (2) The protection device for an elevator string according to claim 1, wherein the string is a governor rope for an elevator. (3) The protection device for an elevator string according to claim 1, wherein the string is a flexible wire of an elevator.