JP5127047B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus that prevents biting of foreign matter.

  Conventionally, in order to prevent foreign matter from getting caught in the entrance / exit of the main rope of the elevator, it is expected to be located near the entrance / exit when the elevator is installed on the upper beam constituting the frame of the car frame or the counterweight frame. A contact-type first exclusion device that removes a large amount of fallen objects is detachably disposed, and a non-contact-type second exclusion type that eliminates a small amount of fallen objects that are expected to be located near the entrance during normal use. It has been proposed to dispose a tool (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 5-105365

However, when the second excluder is brought into contact with the main rope, the main rope travels during normal use and a sliding noise is generated, so that a gap is formed between the suspension wheel and the main rope and the second excluder. A second exclusion tool is installed. Therefore, there is a problem that the fallen object cannot be completely excluded depending on the size of the fallen object.
Also, since the gap between the main rope and the rope detachment stop is usually set to 2 to 3 mm, fallen objects larger than this gap are caught between the main rope and the rope detachment prevention main rope on the rope detachment prevention side. There is a problem that the surface of the rope is significantly damaged.

If a fallen object is caught between the suspension car and the main rope or between the main rope and the rope stopper and the main rope is damaged, the life of the main rope is significantly shortened, or the main rope is cut and leads to an accident. There is a fear.
In addition, it takes a lot of money to replace a damaged or cut main rope, which imposes an economic burden on the owner of the elevator and makes it impossible to use the elevator for a certain period of time. There is.

  An object of the present invention is to provide an elevator apparatus that can prevent the intrusion of a fallen object regardless of its size from an entrance through which a main rope enters and exits at least upward from a suspended vehicle.

  An elevator apparatus according to the present invention is an elevator apparatus in which a main rope is wound around a hoisting machine that is rotatably supported by a hoisting machine or a frame body that is positioned in an elevator hoistway. An exclusion device is provided in the vicinity of the entrance and exit and covers a triangular zone formed by the main rope and the suspension wheel against a fallen object from above.

  The effect of the elevator apparatus according to the present invention is that it is possible to prevent falling objects from entering along the main rope by the tongue-shaped exclusion plate in contact with the side surface of the main rope, and falling objects enter from the support plate along the rope groove. This can be prevented.

Embodiment 1 FIG.
1 is an external view of an elevator apparatus according to Embodiment 1 of the present invention. FIG. 2 is an external view of the vicinity of the suspension wheel of the elevator apparatus of FIG. FIG. 3 is a side cross-sectional view of an exclusion device arranged at an entrance formed by a suspension wheel and a main rope. FIG. 4 is a front view of the exclusion device of FIG. 3 as viewed from above. 3 is a cross-sectional view taken along a line AA in FIG.
In the elevator apparatus according to Embodiment 1 of the present invention, as shown in FIG. 1, a suspension wheel 3 rotatably supported by an upper beam 2 constituting a car frame of the car 1, a suspension car 3 of a hoisting machine 4, fishing A main rope 7 wound around a pulley 3 and a pulley 6 rotatably supported by an upper beam 2 constituting a counterweight frame of the counterweight 5 and fixed at both ends rotates the hoisting machine 4. The car 1 can be raised and lowered. The elevator apparatus prevents the falling object from entering the triangular zone formed in the vicinity of the entrance / exit of the suspension wheel 3 of the main rope 7 and the shield 8 that blocks the falling object falling from above the suspension wheel 3. An exclusion device 9 is provided. The suspension device 3 supported by the cage frame, the suspension vehicle 3 of the hoisting machine 4 and the exclusion device 9 provided in the vicinity of the suspension vehicle 3 supported by the counterweight frame are the same, and hence are supported by the cage frame below. The exclusion device 9 provided in the suspended vehicle 3 will be described.

As shown in FIGS. 2 to 4, the exclusion device 9 is disposed at both ends of the fixture 10 that is horizontally fixed to the pair of upper beams 2.
Further, the exclusion device 9 is fixed to a fixed shaft 11 whose both ends are fixed to both ends of the fixture 10, a connecting shaft 12 that is rotatably supported at a position near both ends of the fixed shaft 11, and a connecting shaft 12. An exclusion comb 13 is provided.
The exclusion comb 13 is inserted into the rope groove 3b of the suspension wheel 3 so as to slide the exclusion comb 13 itself against the rotation of the suspension wheel 3, and the tongue-shaped exclusion extending from the support plate 14 in the traveling direction of the main rope 7. It has a plate 15. The exclusion comb 13 is made of a resin having high elasticity, a low friction coefficient, and wear resistance, and is made of, for example, a polyethylene resin. The tongue-shaped exclusion plate 15 has a plate thickness of 2 mm or less and a length in contact with the main rope 7 of 20 to 30 mm.

In the elevator apparatus according to Embodiment 1 of the present invention, it is possible to prevent falling objects from entering along the main rope 7 by the tongue-shaped exclusion plate 15 in contact with the side surface of the main rope 7, and the rope groove 3b is supported by the support plate 14. It is possible to prevent falling objects from entering along.
Further, since the tongue-shaped exclusion plate 15 has a thickness of 2 mm or less, even if the tongue-shaped exclusion plate 15 is dropped and bitten due to aging friction or deterioration, the broken pieces fall down from between the main rope 7 and the rope detachment stopper 20. Therefore, the main rope 7 does not come into strong contact with the rope detachment stopper 20 and does not cause secondary damage.
Further, since the exclusion comb 13 is made of a polyethylene resin having a low friction coefficient and wear resistance, even if the exclusion comb 13 comes into contact with the main rope 7 or the rope groove 3b of the suspension wheel 3, sliding noise is generated. Low and less wear.

Embodiment 2. FIG.
FIG. 5 is a side cross-sectional view of an exclusion device disposed at an entrance formed by a suspension wheel and a main rope of an elevator apparatus according to Embodiment 2 of the present invention. FIG. 6 is a front view of the exclusion device of FIG. 5 as viewed from above. 5 is a cross-sectional view taken along the line BB of FIG.
The elevator apparatus according to Embodiment 2 of the present invention is different from the elevator apparatus according to Embodiment 1 of the present invention in that it is the same except for the exclusion device 9B. Omitted.
Exclusion device 9B is the same as the exclusion device 9B except that a comb 16 extending between the main ropes 7 is added to the tip of the tongue-like exclusion plate 15 of the exclusion device 9 according to Embodiment 1 of the present invention. Therefore, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.
The comb 16 extends to the half of the diameter of the main rope 7 between the adjacent main ropes 7.

In the elevator apparatus according to Embodiment 2 of the present invention, as in the elevator apparatus according to Embodiment 1 of the present invention, the fallen object is moved along the main rope 7 by the tongue-shaped exclusion plate 15 in contact with the side surface of the main rope 7. Intrusion can be prevented, and fallen objects can be prevented from entering along the rope groove 3 b by the support plate 14.
Further, in the elevator apparatus according to Embodiment 2 of the present invention, the comb 16 fills the space between the main ropes 7, so that falling objects can be prevented from entering between the main ropes 7.

Embodiment 3 FIG.
FIG. 7 is a side cross-sectional view of an exclusion device disposed at an entrance formed by a suspension wheel and a main rope of an elevator apparatus according to Embodiment 3 of the present invention. FIG. 8 is a front view of the exclusion device of FIG. 7 as viewed from above. 7 is a cross-sectional view taken along the line CC of FIG.
The elevator apparatus according to Embodiment 3 of the present invention is different from the elevator apparatus according to Embodiment 1 of the present invention in that it is the same except for the exclusion device 9C. Omitted.
The exclusion device 9C is different from the exclusion device 9 according to the first embodiment of the present invention in the tongue-like exclusion plate 25 and is otherwise the same.
The tongue-shaped exclusion plate 25 extends along the main rope 7 upward from the support plate 14 for each main rope 7.

In the elevator apparatus according to Embodiment 3 of the present invention, as in the elevator apparatus according to Embodiment 1 of the present invention, the fallen object is moved along the main rope 7 by the tongue-shaped exclusion plate 25 in contact with the side surface of the main rope 7. Intrusion can be prevented, and fallen objects can be prevented from entering along the rope groove 3 b by the support plate 14.
In the elevator apparatus according to Embodiment 3 of the present invention, since the tongue-like exclusion plate 25 contacts each main rope 7, the tongue-like exclusion plate 25 follows a certain amount of movement of the main rope 7 and relieves the contact force. Even if the main rope 7 is displaced, it is possible to prevent falling objects from entering.

Embodiment 4 FIG.
FIG. 9 is a side cross-sectional view of an exclusion device disposed at an entrance formed by a suspension wheel and a main rope of an elevator apparatus according to Embodiment 4 of the present invention. FIG. 10 is a front view of the exclusion device of FIG. 9 as viewed from above. 9 is a cross-sectional view taken along the line DD of FIG.
The elevator apparatus according to Embodiment 4 of the present invention is different from the elevator apparatus according to Embodiment 3 of the present invention in that it is the same except for the exclusion apparatus 9D. Omitted.
The exclusion device 9D is different in that a comb 26 for filling the space between the main ropes 7 is added to the distal end portion of the tongue-like exclusion plate 25 of the exclusion device 9C according to Embodiment 3 of the present invention, and the rest is the same. Therefore, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.
The comb 26 is a concave surface surrounding the adjacent main ropes 7 and fills the space between the main ropes 7 to about half the diameter of the main ropes 7.

In the elevator apparatus according to Embodiment 4 of the present invention, as in the elevator apparatus according to Embodiment 1 of the present invention, the fallen object is moved along the main rope 7 by the tongue-shaped exclusion plate 25 in contact with the side surface of the main rope 7. Intrusion can be prevented, and fallen objects can be prevented from entering along the rope groove 3 b by the support plate 14.
Moreover, in the elevator apparatus according to Embodiment 4 of the present invention, the comb 26 fills the space between the main ropes 7, so that falling objects can be prevented from entering between the main ropes 7.

1 is an external view of an elevator apparatus according to Embodiment 1 of the present invention. It is an external view near the suspension vehicle of the elevator apparatus of FIG. It is a sectional side view of the exclusion apparatus arrange | positioned at the entrance and exit formed with a suspension vehicle and a main rope. It is the front view which looked at the exclusion apparatus of FIG. 3 from upper direction. It is a sectional side view of the exclusion apparatus arrange | positioned at the entrance and exit formed with the suspension vehicle and main rope of the elevator apparatus which concern on Embodiment 2 of this invention. It is the front view which looked at the exclusion apparatus of FIG. 5 from upper direction. It is a sectional side view of the exclusion apparatus arrange | positioned at the entrance / exit formed by the suspension vehicle and main rope of the elevator apparatus which concern on Embodiment 3 of this invention. It is the front view which looked at the exclusion apparatus of FIG. 7 from upper direction. It is a sectional side view of the exclusion apparatus arrange | positioned at the entrance and exit formed with the suspension vehicle and main rope of the elevator apparatus which concern on Embodiment 4 of this invention. It is the front view which looked at the exclusion apparatus of FIG. 9 from upper direction.

Explanation of symbols

  1 car, 2 upper beam, 3 suspension wheel, 3b rope groove, 4 hoisting machine, 5 counterweight, 6 pulley, 7 main rope, 8 shield, 9, 9B, 9C, 9D exclusion device, 10 fixture, 11 Fixed shaft, 12 Connecting shaft, 13 Exclusion comb, 14 Support plate, 15, 25 Tongue exclusion plate, 16, 26 Comb, 20 Rope prevention.

Claims (5)

In an elevator apparatus in which a main rope is wound around a hoisting machine that is rotatably supported by a hoisting machine or a frame body that is located in an elevator hoistway,
The main rope is disposed in the vicinity of the entrance to the suspension vehicle, and includes an exclusion device that covers the triangular area formed by the main rope and the suspension vehicle against falling objects from above ,
The exclusion device includes a support plate that is inserted into the rope groove of the suspension wheel and slides with respect to the rotation of the suspension wheel, and a tongue-shaped exclusion plate that extends in a tongue shape in an upward direction while contacting the main rope,
The tongue-shaped exclusion plate extends from the support plate in the traveling direction of the main rope,
The tongue exclusion plate elevator apparatus characterized that you displacement independently for each of the main ropes. The elevator apparatus according to claim 1 , wherein the exclusion apparatus is provided with a comb extending between the main ropes and connected to a distal end portion of the tongue-shaped exclusion plate. The elevator apparatus according to claim 2 , wherein the comb surrounds the main rope over a half circumference. The elevator apparatus according to any one of claims 1 to 3 , wherein the tongue-shaped exclusion plate has a thickness of 2 mm or less. The elevator device according to any one of claims 1 to 4, wherein a portion of the exclusion device that contacts the main rope and the suspension wheel is made of polyethylene resin.

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