JPH09286578A - Vibration damping device for suspending rope for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an irregular rotation of a pulley or a deterioration in comfort of riding in a car from being applied by vibration of a rope in a system in which a rope suspended in a hoistway of an elevator is used for driving the pulley installed at the cage so as to detect a speed of the cage. SOLUTION: A fixing fitting 9 is fixed to a guide rail 1 through a fixing arm 7. A U-bolt 10 is fixed to the fixing fitting 9, and a hole 29 is formed by the U-bolt 10 and the fixing fitting 9. Then, a rope 11 is passed through the hole 12 so as to be contacted with legs 10a, 10b, thereby a vibration of the rope 11 is restricted by a friction between the legs 10a, 10b and the rope 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting the speed and position of a car using a rope suspended in a hoistway of an elevator. The present invention relates to a device that prevents transmission of vibration.

[0002]

2. Description of the Related Art An example using a conventional hanging rope will be described with reference to the drawings. 5 is an overall schematic view showing an elevator using a hanging rope for detecting the speed of a car, FIG. 6 is a detailed portion of A part of FIG. 5, and FIG. 7 is a plan view of FIG. In the figure, 1 is a guide rail that is installed upright in a hoistway 2 of an elevator and guides up and down movement of a car 3. Reference numeral 4 is a speed detector installed in the car 3. The main pulley 5a, the tension pulley 5b, and the main pulley Encoder connected to 5a (not shown)
It has.

Reference numerals 6 and 7 are mounting arms fixed to the upper and lower ends of the guide rail 1, 8 and 9 are mounting brackets fixed to the mounting arms 6 and 7, and 10 is a U bolt, which is lateral, that is, two. The foot parts 10a and 10b are attached to the mounting fitting 9 so as to be aligned in the horizontal direction. 11, the upper end is fixed to the mounting member 8, the middle is wound around the pulleys 5a and 5b, and the lower part penetrates the hole 12 formed by the U bolt 10 and the mounting member 9.
It is a rope such as an air cord, and a tension weight 13 is fixed to the lowermost end to give tension.

When the car 3 moves up and down, the pulley 5
The a and 5b rotate to drive the encoder and detect the speed of the car 3. Further, when the rope 11 vibrates due to the vibration of the car 3 when it is moved up and down, the U-bolt 10 serves as a stopper and suppresses the vibration of the rope 11.

[0005]

In the case of the above-mentioned conventional example, U
Since the bolt 10 is installed laterally, the rope 11
Although it was possible to suppress the horizontal vibration, it was not possible to suppress the vertical vibration. Therefore, there is a possibility that the pulleys 5a and 5b may have uneven rotation due to the vertical vibration of the rope 11 and accurate speed detection may not be possible. In addition, the vibration of the rope 11 may be transmitted to the car 3 and the riding comfort may be deteriorated.

[0006]

According to the present invention, the vertical vibration of the rope can be suppressed by making the rope in contact with a lateral member such as the foot portion of the U-bolt.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a rope and a U-bolt, or the like, which are mounted vertically so that the rope is always in contact with both feet of the U-bolt.
The vibration of the rope is damped by the frictional force with the foot of the bolt. Further, another embodiment of the present invention is configured such that the U bolt is attached in the vertical direction or at an appropriate angle as in the conventional case, and the rope comes into contact with both feet of the U bolt. Further, another embodiment of the present invention is
The rope is wound around at least one lateral member to dampen the vibration.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG.
6 is a diagram corresponding to FIG. 6, FIG. 2 is a plan view of FIG. 1, and the same reference numerals as those in FIGS. In the present embodiment, the U-bolt 10 is attached to the attachment fitting 9 so that the two foot portions 10a and 10b are aligned in the vertical direction, that is, in the vertical direction. Then, the U bolt 10 and the mounting bracket 9
The hole 20 formed by and is configured such that the rope 11 penetrates.

In this embodiment, since the rope 11 is always in contact with the two legs 10a and 10b, the swinging of the rope 11 caused by the traveling of the car 3 causes the legs 10a and 10b to swing.
And is damped by the friction between the rope 11. for that reason,
It is possible to prevent uneven rotation of the pulleys 5a and 5b and deterioration of the riding comfort of the car 3.

Next, another embodiment of the present invention will be described. 3 is a diagram corresponding to FIG. 1, and the same reference numerals as those in FIG. 1 denote the same components. In this embodiment, similarly to the conventional example shown in FIG. 6, the U bolt 10 is attached in the lateral direction, and the rope 11 is attached to the foot portion 10a. It is designed so as to contact both of 10b. Also in this embodiment, the same effect as the embodiment of FIGS.

Although the U-bolts are used in the above-described embodiments, the present invention is not limited to this, and the U-bolt has at least two lateral members that come into contact with the ropes so that the ropes come into contact with the respective lateral members. You can place it in. Further, each of these lateral members may be installed in the vertical direction as shown in FIG. 1 or in the horizontal direction as shown in FIG. 3, or may be installed with any other angle.

FIG. 4 is a view showing another embodiment of the present invention, which is a view corresponding to FIG. 3 and the same reference numerals as those in FIG. 3 indicate the same parts. In this embodiment, a rod-shaped horizontal member 30 is provided instead of the U-bolt, and the rope 11 is wound around the horizontal member 30. Also in this embodiment, FIGS.
The same effect as the embodiment of

Further, in each of the above-described embodiments, the U-bolt 10 and the lateral member 30 have the effect of suppressing the vibration of the rope 11 both vertically and horizontally. Further, it can be used not only for the speed detector of the car, but also for a car position detector having a similar structure.

[0014]

As described above, according to the present invention,
It is possible to prevent uneven rotation of the pulley due to rope vibration and deterioration of the riding comfort of the car.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a diagram showing another embodiment of the present invention.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is an overall schematic diagram showing a conventional elevator that uses a hanging rope to detect the speed of a car.

6 is a detailed view of a portion A in FIG.

FIG. 7 is a plan view of FIG. 6;

[Explanation of symbols]

 1 Guide Rail 2 Hoistway 3 Car 4 Speed Detector 5a, 5b Pulley 6,7 Mounting Arm 8, 9 Mounting Bracket 10 U Bolts 10a, 10b U Bolt 10 Foot (Horizontal Member) 11 Rope 12, 20 Hole 13 Tension weight 30 lateral member

Claims (3)

[Claims] 1. A rope that is suspended in a hoistway of an elevator and has a rope having a tension weight fixed at its lower end, wherein at least two lateral members are provided above the tension weight of the rope, and the rope is A damping device for a hanging rope for an elevator, wherein the damping device is arranged so as to contact all of the at least two lateral members. 2. The vibration control device for the hanging rope for an elevator according to claim 1, wherein the at least two lateral members are U-bolt legs. 3. Instead of the at least two lateral members,
The damping device for the hanging rope for an elevator according to claim 1, wherein at least one lateral member is provided, and the rope is wound around the lateral member.