JP2002087721A - Adjusting method and tool for elevator car weighing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy adjusting method and an adjusting tool for a car weighing device. SOLUTION: An elevator system is provided with a car held through a buffer means to a car holding frame body elevated being guided by a guide rail disposed in an elevator shaft while being towed by a main cable, and the car weighing device for detecting total load weight in the car by the settlement of the car against the buffer means. In the elevator system, the method for adjusting the car weighing device for an elevator is characterized by stopping the elevation of the car holding frame and towing the car downward to adjust the car weighing device. The adjusting tool or towing the car downward is also provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to adjustment of a cage weighing device for an elevator, and more particularly, to a cage holding frame which is guided by guide rails provided on a hoistway while being pulled by a main rope. A method for adjusting a car weighing apparatus in an elevator system, comprising: a car held via a shock absorbing means; and a car weighing apparatus for detecting a total weight of the loaded car in the car by a sinking amount of the car against the shock absorbing means. And a jig for the adjustment.

[0002]

2. Description of the Related Art A car weighing apparatus for an elevator uses an amount of sinking of a car against buffer means for supporting the car appropriately.
A device for detecting the total weight of the car, based on the detected value, the elevator operation control means, elevating movement of the car, for example, to smoothly perform static movement at the time of starting or stopping the car When the predetermined maximum load capacity is exceeded, a warning is issued via a warning means to stop the operation of the car. Note that there is also a so-called switch-type cage weighing apparatus that only issues an alarm via an alarm means and stops the basket only when a predetermined maximum allowable load capacity is exceeded. In this switch-type basket weighing device, the device is arranged so that the switch is turned on at a position where the load is lowered at the maximum load capacity.

[0003] As shown in Figs. 2 and 3, the elevator system includes a car holding frame 3 to which a car 1 is towed while being guided by guide rails 2 and 2 provided on a hoistway.
It is held up and down freely through a buffer means 4, and the cage holding frame 3 is pulled by a main rope 5, and is moved up and down while being guided by guide rails 2 and 2 arranged in a hoistway. Have been. The car weighing devices 9 and 9B for detecting the total weight of the passengers and luggage loaded in the car 1 loaded in the car 1 hold the car 1 under the floor and the car 1 via the buffer means 4 so as to be vertically movable. It is appropriately disposed between the cage holding frame 3 and the cage holding frame 3. These buffer means 4 are made of, for example, a vibration-proof rubber or a spring.

The car weighing devices 9 and 9B detect the total weight of the car 1 based on the amount of change such as bending of the shock absorber 4 and the amount of sinking of the car 1.
If the amount of change in is distorted, the detected value will be deviated. Therefore, it is necessary to appropriately adjust the basket weighing device 9 to correct the deviation. In the conventional adjustment method, after the car 1 is stopped, an appropriate weight member is loaded until the maximum loading capacity of the car 1 is reached, and then the detected value of the car weighing device 9 becomes an appropriate value. It was adjusted to become.

[0005]

However, in the conventional method of adjusting the weight by loading an appropriate weight member on the car 1 until the maximum load capacity is reached, a large number of weight members are carried by a truck or the like, and the weight is reduced in a building. Therefore, it is necessary to repeat a series of manual operations of reloading the weight member to the bogie, transporting the weight member to the car 1, and loading the car, and when the adjustment work is completed in this way, on the contrary, the work of carrying out the weight from the car is performed. It had to be done and took a lot of effort and time. Also, when transporting inside the building, prepare a protective member so that the floor serving as the transport route and the wall along the transport route will not be damaged or damaged, stretch it, remove it after work, etc. Additional work was also required. In addition, during the period of carrying and carrying out the work and the accompanying work, the passage in the building is occupied, which is troublesome for the user.

An object of the present invention is to provide a method of adjusting a basket weighing apparatus and an adjusting jig which solve the above-mentioned problems.

[0007]

According to a first aspect of the present invention, there is provided a method of adjusting a car weighing apparatus for an elevator, wherein the car holding frame is guided by a guide rail provided on a hoistway while being pulled by a main rope. An elevator system comprising: a car held on a body via a buffer means; and a car weighing device for detecting a total weight loaded in the car according to a sinking amount of the car against the buffer means, The lifting of the frame is stopped, and the basket is pulled in the descending direction to adjust the basket weighing device.

According to a second aspect of the present invention, there is provided an elevator car weighing apparatus adjusting method, wherein a car holding frame which is guided by guide rails provided on a hoistway and lifted while being pulled by a main rope is provided with a buffer means. Stopping the lifting of the car holding frame in an elevator system including a car held and held, and a car weighing device that detects the total weight loaded in the car by sinking the car against the buffering means. The basket weighing device is adjusted by pulling the car in the descending direction by using an adjustment jig having one set engaged with the guide rail and the other set engaged with the car.

According to a third aspect of the present invention, there is provided an adjusting jig for an elevator car weighing apparatus, wherein one of the engaging portions is detachably engaged with the guide rail and the other is engaged with the car side. It is characterized by comprising a hook portion and a rotating portion screwed to the both hook portions, wherein the interval between the both hook portions can be adjusted according to the rotation of the rotating portion.

According to a fourth aspect of the present invention, there is provided an adjusting jig for an elevator car weighing apparatus, wherein a locked member is detachably fixed to a guide rail, and the locked member is detachably locked to the locked member. And a second locking portion that is removably locked to the car side with the locking portion, and a rotating portion screwed to the both locking portions, and the both locking portions are rotated in accordance with the rotation of the rotating portion. Is adjustable.

[0011] The invention of claim 5 is the invention of claim 1 or claim 2.
In the method of adjusting the elevator car weighing apparatus described in,
The adjustment is performed by using the adjustment jig of the elevator cage weighing device according to claim 3 or 4.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, the present invention will be described with reference to FIG. 1 showing the first embodiment. FIG. 1 omits the basket holding frame 3, the buffer means 4, and the basket weighing device 9,
FIG. 4 is a diagram illustrating a use state of the adjustment jig 10. In FIG. 1, locked members 11, 11 are detachably fixed to guide rails 2, 2 located on both sides of a cage 1, respectively.
The locked member 11 is a plate-like member fixed in a direction orthogonal to the guide rails 2 and 2, and has locking holes 12 and 12 provided at both ends. An adjusting jig is mounted between each of the two locked members 11, 11 and the floor of the car 1. The mounting jig is the same, so that it is illustrated below. The locked state between one locked member 11 and the cage 1, that is, the adjustment jig 10 to be mounted will be described.

The adjusting jig 10 stops the lifting of the car holding frame 2 and pulls the car 1 along the guide rails 2 and 2 in the descent direction. The adjusting jig 10 includes one locking portion 20 that is removably locked to the locked member 11 and the other locking portion 30 that is releasably locked to the cage 1 side. And a rotating portion 40 which is screwed to the both hanging portions 20 and 30. By rotating the rotating portion 40 as appropriate, the two hanging portions of the hanging portion 20 and the hanging portion 30 are formed. The interval is adjustable. Incidentally, reference numeral 4 in the figure
1 is a bar for rotating the rotating unit 40.

The first embodiment is an example of a configuration in which buffer means 4 (not shown) are provided at the four corners below the floor of the car 1, respectively. The four adjustment jigs 10 are mounted on the four corners under the floor of the cage 1 so as to be locked. In this case, when pulling down the cage 1 in the descending direction, an equal tension (1/4 of the maximum allowable load) is applied to the four adjustment jigs 10.

The tension or output value of each adjusting jig 10 is determined, for example, by interposing a load cell serving as a tension detector 31 in the tension direction of each hook 30 as shown in FIG. By doing so, the tension of the four adjustment jigs 10 is floated with gold. Reference numerals 32 in the figure denote wires 32 extending to both ends of the tension detector 31. Reference numeral 33 in the figure denotes a pair of hook portions of two adjusting jigs 10 facing each other with the guide rail 2 at the center using the guide rail 2 so that the rotation of the rotating portion 40 is not absorbed by the wires 32. It is a bar spanned between 30.

In the first embodiment, the tension detector 3
1 is not interposed in the hook 30, the hook 30
Is formed entirely of a rigid member, has a locking hook 34 at the distal end side, and has a rotating portion 40 and a screw at the base side, like the other hooking portion 20 consisting of the locking hook 25 and the screw portion 25. It is preferable to provide a configuration in which a screw portion 35 is provided. Further, in the first embodiment, the adjustment jig 10 with one of the adjustment jigs 10
The other is locked to the guide rail 2 side, but is not limited thereto, and may be locked to an appropriate portion provided on the bottom (pit) side of the hoistway.

Next, the adjusting method will be described. Basket weighing device 9
As described in the first embodiment, after adjusting the cage holding frame 2 to a stop state, the tip of one of the hooks 20 of the adjustment jig 10 is connected to the guide rail 2. And the like, and the tip of the other engaging portion 30 is engaged with the car 1 side, respectively, and the car 1 is pulled in the descending direction to adjust the car weighing device 9.

For example, an apparatus for detecting the total loaded weight of the car 1 based on the amount of the car 1 sinking against the buffer means 4 which supports the car 1 appropriately. The operation control means smoothly moves the car 1 up and down, for example, when the car 1 starts or stops, or issues an alarm via the alarm means when the predetermined maximum allowable load is exceeded. In the case of a device for stopping the operation of a car, for example, a differential transformer arranged at each of the four corners of the floor as an adjusting device is provided so as to contact the floor of the sinking car 1 in accordance with the amount of sinking. The total value of the four generated voltages is adjusted to the reference voltage value when the car 1 is not loaded and when the maximum load capacity is reached. At the time of this adjustment, the floor of the cage 1 is moved up and down using the adjustment jig.

On the other hand, if the basket weighing device 9 is a switch type for detecting only whether or not the maximum allowable load has been reached by contact with the floor of the sinking cage 1, as shown in FIG. Using the adjustment jig 10 having the tension detector 31, for example, when the sum of the values of the tension detectors 31 of the four adjustment jigs 10 reaches the maximum allowable load of the car 1, This is performed by adjusting the position of the car weighing device 9 with respect to the sinking car 1 so that the switch is turned on.

[0020]

According to each of the first to fifth aspects of the present invention, the adjustment work of the basket weighing device can be performed quickly and easily in the hoistway. Therefore, there is no need to carry in and load the weight members or to carry out the loaded weight members. Therefore, the adjustment work cost can be significantly reduced, and the inconvenience of users and passers-by can be largely eliminated.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a mounted state according to a first embodiment;

FIG. 2 is a front view showing an outline of an elevator system.

FIG. 3 is a side view showing an outline of an elevator system.

[Explanation of symbols]

1 basket, 2 guide rails, 3 cage holding frame, 4
Buffer means, 5 main ropes, 9 cage weighing devices, 10 adjusting jigs, 11 locked members, 20 hooks, 30 hooks, 4
0 Rotating part.

Claims (5)

[Claims] 1. A basket held by a cage holding frame which is guided by guide rails provided on a hoistway while being pulled by a main rope via a buffer means, and a basket opposed to the buffer means. An elevator system including a car weighing device that detects a total weight of the car loaded by the amount of sinking of the car, wherein the elevator holding the frame is stopped, and the car is pulled in a descending direction. A method for adjusting a cage weighing device for an elevator, comprising adjusting a cage weighing device. 2. A basket held by a cage holding frame, which is guided by guide rails provided on a hoistway while being pulled by a main rope, and lifts and lowers, via a buffer means, and against the buffer means. An elevator system including a car weighing device that detects a total weight of the car loaded by the amount of sinking of the car, wherein the elevator is stopped in a state where the car holding frame is lifted, and one of the car is held on the guide rail and the other is on the car. A method for adjusting an elevator car weighing apparatus, wherein the car is pulled in a descending direction by using an adjustment jig locked to adjust the car weighing apparatus. 3. A locking portion that is detachably engaged with the guide rail side and another engaging portion that is detachably engaged with the car side, and a rotation screwed to the both engaging portions. A jig for adjusting a cage weighing device of an elevator, comprising: 4. A locked member detachably fixed to the guide rail, one of the hooking portions that is releasably locked to the locked member, and the other that is removably locked to the car side. And a rotating portion screwed to the both hanging portions, and an interval between the two hanging portions is configured to be adjustable according to the rotation of the rotating portion. Adjustment jig for basket weighing device. 5. The elevator car weigher according to claim 1 or 2, wherein the elevator weigher is adjusted by using an adjustment jig of the elevator car weigher device according to claim 3 or 4. How to adjust the device.