JP4130093B2 - Governor tensioner device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a governor tensioner device for applying tension to a governor rope that is hung on a governor for adjusting the speed of an elevator in order to synchronize with the elevator.
[0002]
[Prior art]
As shown in FIG. 11, a conventional governor tensioner 5 is suspended from a governor rope 1 by a tensioner sheave 5a, and a support plate 6 on which a sheave shaft 5b is rotatably attached is attached to an attachment plate 7. The mounting plate 7 is attached to the guide rail 2 by rail clips 22, bolts, and nuts 23. In this case, with respect to the aging of the governor rope 1, the governor tensioner 5 moves the support plate 6 around the mounting shaft 6a and moves downward. Further, the governor tensioner 5 follows the vibration of the governor rope 1 due to passenger vibration or the like around the mounting shaft 6 a of the support plate 6.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional governor tensioner 5 as described above, even when the governor rope core 1a is attached to the dropping position of the governor rope core 1a at the time of installation adjustment, the support plate 6 rotates and the governor rope core 1a is displaced due to the extension of the governor rope over time. As a result, the governor rope 1 may not move smoothly. Further, the governor tensioner 5 cannot follow the swing of the governor rope 1 generated by the passenger vibration in the passenger car or the emergency stop of the elevator, thereby giving unnecessary lateral vibration to the governor rope 1 and, as a result, increasing the peripheral speed fluctuation of the governor. There is a risk that the electrical safety device operates and stops the elevator.
[0004]
The present invention has been made to solve such problems.
[0005]
[Means for Solving the Problems]
The present invention relates to a tension sheave that is engaged with a governor rope that engages with a governor that detects the speed in synchronization with the raising and lowering of the car,
A governor tensioner that rotatably supports the tension sheave with the tension sheave interposed therebetween, and applies tension to the governor rope;
A guide unit that is coupled to the governor tensioner to restrict lateral deflection and to be movable in the vertical direction;
A governor tensioner device comprising a guide mounting portion for mounting the guide portion at a predetermined position.
[0006]
As a result, the governor tensioner can be moved up and down vertically and there is no roll, so fluctuations in the peripheral speed of the governor can be suppressed.
[0007]
In this case, in order to prevent the governor tensioner and the guide portion from coming into contact with each other, a low friction material is preferably provided on the surface of the guide portion facing the governor tensioner.
[0008]
In addition, the governor tensioner consists of a plate-shaped front weight, a rear weight, and a central weight that is interposed between these weights. A gap is formed between the front weight and the rear weight, and a tension sheave is placed in this gap. It is in the governor tensioner device.
[0009]
Furthermore, the guide portion is in the governor tensioner device including one or more annular bodies surrounding the outside of the governor tensioner.
[0010]
Further, the governor tensioner device includes a guide hole having a through hole extending in the vertical direction, and the guide portion is inserted through the long hole.
[0011]
Further, the governor tensioner device has a guide bar that extends downward at a lower portion, and the guide portion grips the guide bar so as to be movable in the vertical direction.
[0012]
Further, the guide attaching portion is provided in a governor tensioner device that is fixed to a guide rail of a car.
[0013]
Since the governor rope is suspended along the guide rail, the guide mounting portion can be formed short, and the governor tensioner can be firmly fixed.
[0014]
Further, the governor tensioner device is characterized in that the governor tensioner is provided with means for restricting the vertical movement of the governor tensioner.
[0015]
With this restriction device, it is possible to prevent the governor tension from jumping up due to the passenger vibration of the elevator or the emergency stop of the elevator, or to prevent the governor tension from coming out of the guide when the governor rope extends over time. .
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
FIGS. 1 and 2 (a), 2 (b), and 2 (c) illustrate this embodiment. As shown in FIG. 1, a governor rope 1 is an endless rope, and a governor 3 installed at the upper part of a hoistway. 1 is engaged with the car 4 at one position on one side. In order to apply tension to the governor rope 1, a governor tensioner 10 having a predetermined weight is suspended vertically from the pit of the hoistway through a tensioner sheave 11.
[0017]
As shown in FIG. 2, the governor tensioner 10 is restricted by the guide portion 30 in the lateral direction but is gently surrounded so as to be movable in the vertical direction, and the guide is attached so that the hanging position of the governor tensioner 10 is not shifted. It is attached by the part 20.
[0018]
The governor tensioner 10 includes a front weight 14 and a back weight 15 each made of a rectangular iron plate, and a central weight 16 sandwiched therebetween. The central weight 16 is formed in a short size, and when the three members are fastened together by bolts 43 and nuts 44, a gap is formed between the front weight 14 and the rear weight 15. The thickness of the central weight 16 determines the interval of the gap, and the tensioner sheave 11 is disposed in the gap. Tensioner sheave 11 by sheaves shaft 12 attached to the rear surface of the back weight 15 is rotatably held. Increasing the upper portions of the front weight 14 and the rear weight 15 to cover the tension sheave 11 can reduce the entry of foreign matter into the gap.
[0019]
The bolts 43 and nuts 44 for connecting the respective weights 14, 15 and 16 can accommodate the heads of the bolts 43 and the nuts 44 by providing the counterbore 14a on the front weight and the counterbore 15d on the rear weight. Thereby, the surface of the front weight 14 and the back weight 15 can be made flat, and the governor tensioner 10 can be raised and lowered smoothly without interfering with the guide part 30 of the tensioner.
[0020]
Sheave shaft 12 Seal Script emissions sheave 11 is fixed by a nut 13. The head portion 12 a of the sheave shaft 12 fits in the counterbore 15 a of the back surface weight 15. Thereby, the surface of the back surface weight 15 can be made flat. As a result, the governor tensioner 10 can smoothly move up and down and move up and down without interfering with the guide portion 30.
[0021]
The guide portion 30 is formed by a part 21 a of a long flat plate member 21 and a U-shaped member 31, and is an annular body that surrounds the governor tensioner 10 and gently grips it. The U-shaped member 31 is fixed to the flat plate member 21 via a bolt 32 and a threaded portion 33 of a part 21a of the flat plate member. The bolt 32 may be fixed with a nut 34.
[0022]
The other part 21 b of the flat plate member extends from the guide part 30 in an arm shape, and functions as the guide attaching part 20 together with the rail clip 22, the bolt 23, and the nut 24. That is, the guide mounting portion 20 is fixed to a predetermined position of the guide rail 2 for the car provided in the hoistway through the rail clip 22, the bolt 23, and the nut 24.
[0023]
In order to prevent the governor tensioner 10 from jumping up, a stopper 18 is attached to the lower hole 15 b of the back side weight 15. A plurality of holes 15b are provided on the center of the governor tensioner 10, and the distance between the stopper 18 and the guide mounting portion 20 can be adjusted by attaching the stopper 18 to an arbitrary hole. A stopper 19 that prevents the governor tensioner 10 from coming out of the guide portion 30 is attached to the upper hole 15 c of the rear weight 15. A plurality of holes 15c are provided on the center line of the governor tensioner 10, and the distance between the stopper 19 and the guide portion 30 can be adjusted by attaching the stopper 19 to an arbitrary hole. Inside the U-shaped member 31 and the flat plate member 21a, a low friction material 35 is provided so that the guide portion 30 does not make contact noise with the governor tensioner 10.
[0024]
Since the center weight 16 is thicker than the front weight 14 and the back weight 15, it may be composed of a plurality of iron plates in consideration of material availability and assemblability.
[0025]
A cover 60 covering the tension sheave 11 is attached to the upper ends of the front weight 14 and the rear weight 15 so as to straddle these weights. This cover prevents foreign matter from entering the gap formed by the weight and prevents the sheave and the sheave shaft from becoming dirty. Cutouts 61 through which the governor rope 1 passes are formed on both sides of the cover 61.
(Second Embodiment)
3A and 3B show a second embodiment. Hereinafter, the same reference numerals as those in the first embodiment denote the same parts. A square-shaped guide rod 51 provided with a stopper 51b is attached to the lower portion of the central weight 16 of the tensioner 10 along the center of the tensioner, and a guide portion 53 that grips the guide rod 51 with a surrounding portion is guided by the guide attachment portion 52. 2 is attached.
[0026]
The guide bar 51 can slide up and down in the through hole of the guide portion 53, and its movement range is limited to a range where the central weight 16 and the stopper 51 b correspond to the guide portion 53. As a result, the tensioner can be prevented from jumping up or coming off from the guide portion. With the above configuration, it is possible to obtain the same effect as that of the above embodiment. In addition, the guide rod can use other rod-shaped bodies, such as a round member, instead of a square member.
(Third embodiment)
FIGS. 4A and 4B show a third embodiment. The governor tensioner 10 is provided with a through long hole 10a formed so as to extend in the vertical direction along the center line thereof, the guide bolt 25 is inserted into the through hole 10a, and the guide bolt mounting portion 26 attached to the guide rail 2 is provided. Secure with nut 27. The guide bolt 25 that restricts the lateral movement of the tensioner serves as a guide portion, and the guide bolt mounting portion 26 serves as a guide mounting portion. The length of the through-hole limits the moving distance of the governor tensioner 10 in the vertical direction and prevents the jumper from jumping up.
[0027]
Thereby, an effect equivalent to that of the above embodiment can be obtained.
(Fourth embodiment)
5A and 5B show a fourth embodiment. The difference from the first embodiment is that the guide portion 20 is attached at two locations in the upper and lower directions. Accordingly, the distance between the guide portions can be arbitrarily set, and the stoppers 18 and 19 can be fixed without providing a plurality of stopper insertion holes 15b and 15c provided in the first embodiment. Also in this embodiment, the same effect as that of the above embodiment can be obtained.
[0028]
【The invention's effect】
According to the present invention, the governor tensioner moves up and down perpendicular to the passenger vibration, the emergency stop of the elevator, or the aging rope elongation, so that the governor rope is subjected to extra lateral vibration due to the vibration of the governor tensioner caused by the passenger vibration or the like. Never give. As a result, the peripheral speed fluctuation of the governor can be suppressed, the electric safety device is not operated and the elevator is not stopped, and the stability as the elevator system can be obtained.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a hoistway according to a first embodiment.
2A and 2B show a governor tensioner device according to a first embodiment, wherein FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a side view.
3A and 3B show a governor tensioner device according to a second embodiment, wherein FIG. 3A is a front view, and FIG. 3B is a plan view.
4A and 4B show a governor tensioner device according to a third embodiment, wherein FIG. 4A is a front view, and FIG. 4B is a side view.
5A and 5B show a governor tensioner device according to a fourth embodiment, wherein FIG. 5A is a front view, and FIG. 5B is a side view.
FIG. 6 is a front view showing a structure of a conventional governor tensioner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Governor rope 2 ... Guide rail 3 ... Governor 4 ... Car 10 ... Governor tensioner 10a ... Through-hole 11 ... Tensioner sheave 14 ... Front weight 15 ... Rear weight 16 ... Center weight 18, 19 ... Stopper 20 ... Guide mounting part 30 ... guide portion 35 ... low friction material 51 ... guide rod

Claims (3)

A tension sheave that engages with a governor rope that is linked to a governor that synchronizes with the raising and lowering of the car and detects the speed;
It consists of a plate-shaped front weight, a rear weight, and a central weight that is interposed and integrated between the weights. A gap is formed between the front weight and the rear weight, and the tension sheave is disposed in the gap. the pivoted to the tension sheave rotatably sandwich the tension sheave, a governor tensioner for imparting tension to the governor rope,
It is coupled to the governor tensioner to restrict lateral deflection and to be movable in the vertical direction, and is provided on a surface facing the governor tensioner, which is one or more annular bodies surrounding the outside of the governor tensioner. A guide portion provided with a low friction material ,
Governor tensioner device comprising comprising a guide mounting portion and you attached and fixed to the guide portion to the car guide rails. The governor tensioner device according to claim 1, wherein the governor tensioner has a guide hole having a through-hole extending in the vertical direction, and the guide portion is inserted into the slot. The governor tensioner device according to claim 1 or 2, wherein the governor tensioner is provided with means for restricting the vertical movement of the governor tensioner.

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