JPH10109852A - Examination device of weighing system for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To examination a weighing device correctly neither deforming nor breaking of a floor frame not being influenced by a shape of the floor frame. SOLUTION: At one end of a bracket 1 with a shape of a C letter, a hydraulic compressor consisting of a hydraulic cylinder 2a and a plunger 2b which can be moved with a bolt 1d by a special nut 1c, is arranged at the other end of the bracket 1 so that it can be pinched between a member 22a agreed with the shape of a floor frame 9a and the plunger 2b. And, each hydraulic cylinder 2a in each load generator is pressurized by a hydraulic pump which can generate pressure through a hose 4 to cause a load in each antivibration rubber 10. By this action, the examing device of weighing system for elevator can carry out a correct and high-precise examination by a member agreed with the shape of the floor frame on which the load generator is installed, neither deforming nor breaking the floor frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a testing device for an elevator weighing device for simulating the operation of a weighing device by applying a simulated load.

[0002]

2. Description of the Related Art Generally, as shown in a front view of FIG. 8, an elevator is provided between a floor frame 9c and a support frame 13c of the elevator, a vibration isolating rubber 10 arranged at four corners, and a weighing device 12c arranged at a central portion. Is configured. This weighing device 12
c is set so as to be activated by the displacement of the anti-vibration rubber 10 when a load more than a predetermined value, for example, a person more than the capacity, enters the car 15, and an operation test is performed to maintain the performance of the weighing device 12 c. ing.

As shown in FIG. 1, a conventional elevator weighing apparatus is tested by loading an actual load of about 110% of the rated load into a car 15, for example, a 660 kg weight 16 for a nine-seater elevator. Had been implemented. However, not only does the transport of the weights 16 and the loading and unloading of the weights 15 into and out of the car 15 require a great deal of labor, but also the loading and unloading of the weights 16 can damage the side walls of the car 15 and customer buildings. There was a risk of harm to workers or third parties due to the fall.

Therefore, in order to avoid these dangers,
A testing device for an elevator scale device as shown in FIG. 1 has been proposed in Japanese Patent Application No. 7-132152. This tester has four load generators 20A, 20B, 20C, 20D respectively corresponding to elastic bodies such as anti-vibration rubber arranged at four corners between a floor frame and a support frame (not shown). 20A, 20B, 20C and 20D are connected to a hydraulic pump 6 as a common fluid pressure source via a hose 4 and a distributor 5, respectively. Each of these load generators 20A,
Since 20B, 20C, and 20D have the same configuration, here, the load generator 20A will be described in detail, and the other load generators will be given the same reference numerals and will not be described.

[0005] The load generator 20A has a substantially C-shaped bracket 1, and has a fluid pressure device 2 comprising a hydraulic cylinder 2a and a plunger 2b attached to one end of the bracket. A push plate 3 as a contact member is attached to an upper part of a plunger 2b which moves up and down with respect to the hydraulic cylinder 2a. A hydraulic pump 6 as a fluid drive source is connected to the hydraulic cylinder 2a via a hose 4 and a distributor 5. The hydraulic pump 6 can generate a pressure by operating a manual handle 6 a, and the generated pressure is visually checked by a load detector 7 attached to the hydraulic pump 6 via the hose 4 and the distributor 5. It is transmitted to each hydraulic cylinder 2a.

FIGS. 2 and 3 show details of the bracket 1 of the load generator 20A.

A push plate 1b, which is a contact member, is attached to one end of the bracket body 1a, and a special nut 1c is attached to the other end of the bracket body 1a. Is screwed with a bolt 1d so that the position can be adjusted. This special nut 1c has O
N and OFF functions are provided. In the ON state, the threaded portion of the bolt 1d and the threaded portion of the special nut 1c engage.
Although the cylinder base 1e does not slide downward,
In the FF state, the threaded portion of the bolt 1d and the threaded portion of the special nut 1c are disengaged, and the cylinder base 1e can slide up and down. At the tip of the bolt 1d, a cylindrical cylinder base 1e having a notch for installing the fluid pressure device 2 shown in FIG. 1 is fixed. The cylinder table 1e has a cylindrical shape corresponding to the outer dimensions of the hydraulic cylinder 2a of the fluid pressure device 2 and has a cutout in a part of the circumferential direction so that the hydraulic cylinder 2a can be easily attached and detached. Has become. One end of the guide 1F is fixed to the tip of the bolt 1d and the mounting portion of the fluid pressure device 2, and the other end of the guide 1f is movably engaged with the linear portion of the bracket body 1a. When moved, the guide 1f guides the cylinder base 1e and the fluid pressure device 2 to move on a line connecting both ends of the bracket body 1a. Also,
A ring 1g is attached to the bracket main body 1a at a position where it does not collide with the guide 1f, and a band or a string-like band 1h as a binding means is attached to the ring 1g.
By forming the band 1h with, for example, double-sided Velcro, the band 1h is easily fixed to the car and the bracket 1
Can be prevented from falling.

[0008] In this proposed means, since the weight of about 110% of the rated load capacity of the elevator is not used, the labor required for loading and unloading the weight can be reduced.
Further, dangerous work associated with carrying the weight can be prevented.

[0009]

In the above prior art, no consideration is given to the shape of the substantially C-shaped bracket 1 of the load generator 20A shown in FIG. In the case of the floor frame 9a, the contact portion 21 between the bracket 1 and the floor frame 9a is a folded portion of the floor frame 9a. For this reason, the point of action of the force becomes a concentrated load at the contact portion 21 between the bracket 1 and the floor frame 9a, and there is a possibility that the car frame may be deformed or damaged. In addition, the contact area 21 between the bracket 1 and the floor frame 9a has a small contact area and becomes unstable, so that the bracket 1 may come off from the floor frame 9a or the inclination may affect the accuracy of the inspection apparatus.

SUMMARY OF THE INVENTION It is an object of the present invention to accurately test a weighing device, and to inspect a weighing device for an elevator without being affected by the shape of the floor frame and without deforming or damaging the floor frame. Is to provide.

[0011]

SUMMARY OF THE INVENTION The object of the present invention is to provide a weighing device for supporting an elevator floor frame on a support frame via a plurality of elastic bodies, and measuring a load between the floor frame and the support frame. In the elevator, a substantially C-shaped bracket having opposite ends located directly above and below the respective elastic members, a bolt screwed to one end of the bracket, and an opposite end facing the other end of the bracket. A load generator including a fluid pressure device attached to the bolt and a nut for holding the bolt so that the position can be adjusted. Each of the elastic members has a point of application of a force directly above and below the elastic member. In the inspection device of the elevator weighing apparatus for applying a displacement to the floor frame, the substantially C-shaped bracket is achieved by forming the bracket into a shape that matches the unevenness of the floor frame shape.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 11 is a front view showing an inspection device of an elevator weighing device according to an embodiment of the present invention.

4 respectively corresponding to elastic bodies such as vibration-proof rubbers arranged at four corners between a floor frame and a support frame (not shown).
Load generators 20A, 20B, 20C, and 20D. Each of the load generators 20A, 20B, 20C, and 20D is connected to a hydraulic pump 6 that is a common fluid pressure source via a hose 4 and a distributor 5. ing. Since each of these load generators 20A, 20B, 20C, and 20D has the same configuration, the load generator 20A will be described in detail here, and the other load generators will be given the same reference numerals and will not be described. I do.

The load generator 20A has a substantially C-shaped bracket 1 and a fluid pressure device 2 comprising a hydraulic cylinder 2a and a plunger 2b attached to one end of the bracket. A push plate 3 as a contact member is attached to an upper part of a plunger 2b which moves up and down with respect to the hydraulic cylinder 2a. A hydraulic pump 6 as a fluid drive source is connected to the hydraulic cylinder 2a via a hose 4 and a distributor 5. The hydraulic pump 6 can generate a pressure by operating a manual handle 6 a, and the generated pressure is visually checked by a load detector 7 attached to the hydraulic pump 6 via the hose 4 and the distributor 5. It is transmitted to each hydraulic cylinder 2a.

FIG. 12 shows details of the bracket 1 of the load generator 20A.

A push plate 1b, which is a contact member, is attached to one end of the bracket body 1a. As shown in FIG. 7, a member 22 conforming to the shape of the floor frame 9a is attached to the push plate 1b.
a is attached with a screw 23 or a bolt. A special nut 1c is attached to the other end of the bracket body 1a.
d is screwed so that the position can be adjusted. This special nut 1c
Has an ON / OFF function. In the ON state, the threaded portion of the bolt 1d and the threaded portion of the special nut 1c are engaged with each other, so that the cylinder base 1e does not slide downward. Screw part and special nut 1
The engagement of the threaded portion c is released, and the cylinder base 1e can slide up and down. At the tip of the bolt 1d, a cylindrical cylinder base 1e having a notch for installing the fluid pressure device 2 shown in FIG. 1 is fixed. This cylinder stand 1
The hydraulic cylinder 2a of the fluid pressure device 2e has a cylindrical shape corresponding to the outer dimensions of the hydraulic cylinder 2a, and a cutout is provided in a part of the circumferential direction so that the hydraulic cylinder 2a can be easily attached and detached. . One end of a guide 1f is fixed to a tip of the bolt 1d and a mounting portion of the fluid pressure device 2.
Since the other end of f is movably engaged with the linear portion of the bracket body 1a, when the bolt 1d is moved, the guide 1
By f, the cylinder base 1e and the fluid pressure device 2 are guided and moved on a line connecting both ends of the bracket main body 1a.
A ring 1g is attached to the bracket main body 1a at a position where it does not collide with the guide 1f, and a band or a string-like band 1h as a binding means is attached to the ring 1g. By configuring the band 1h with, for example, double-sided Velcro, it is possible to easily fix the band to the car and prevent the bracket 1 from dropping.

Next, the load generators 20A, 20
The case where the verification of the weighing device is performed using the verification device of the elevator weighing device having B, 20C, and 20D will be described. As shown in the front view of FIG. 4 and the side view of FIG. 5, the fluid device 2 is installed on the cylinder base 1e, and the plunger 2 moves up and down with respect to the hydraulic cylinder 2a of the fluid pressure device 2.
floor frame 9 on which the pressing plate 3 as a contact member is installed on the upper part of the b
The push plate 1b is brought into contact with the upper part of a through the member 22a conforming to the floor frame shape, and the bracket is installed. At this time,
Both ends of the bracket 1 of each of the load generators 20A, 20B, 20C, and 20D have their respective vibration isolating rubbers 10 positioned so that the point of action of the force is located within the projection plane of the vibration isolating rubber 10 disposed at each of the four corners. Be placed directly above and below. Thereafter, the hydraulic cylinder 2a, the distributor 5 (not shown), and the hydraulic pump 6 are brought into contact with each other by the hose 4, and the load detector 7 (not shown) is attached to the output of the hydraulic pump 6. Further, a band 1 attached to the bracket body 1a via a ring 1g.
h is wrapped around a tie rod 14 attached to the car to prevent falling. In this state, the bolt 1d is slid upward until the push plate 3 installed above the hydraulic cylinder 2a comes into contact with the support frame 13a, but the upward slide is performed while the special nut 1c is in the ON state.

Thereafter, the hydraulic pump 6 is manually operated to generate pressure, and the generated pressure is transmitted to the distributor 5 through the hose 4, and this pressure is transmitted to a plurality of load generators 20A, 20B. , 20C, 20D hydraulic cylinders 2
distributed equally to a. Then, the push plate 3 installed on the upper part of the plunger 2b is moved to the support frame 13 just below the vibration-proof rubber.
a, and a pressure is applied between the floor frame 2a directly above the vibration isolating rubber via the pressing plate 1b, and thus the same pressure can be applied to the plurality of vibration isolating rubbers 10 from directly above and immediately below. Therefore, the anti-vibration rubber 10 bends to the pressure of the hydraulic cylinder 2a and is displaced to operate the weighing device 12a. Therefore, when the weighing device 12a is operated, the load applied to the anti-vibration rubber 10 is attached to the output end of the hydraulic pump 6. The load detector 7 detects the weighing device 12a. After the test, the special nut 1 attached to the bracket body 1a
With c turned off, the hydraulic cylinder 2a is slid downward to remove the bracket 1.

As can be seen from the above description, the fluid pressure devices 2 are arranged in the vicinity of the respective anti-vibration rubbers 10, and a predetermined test pressure is applied to each of the anti-vibration rubbers 10 from a common fluid drive source. In addition, it is possible to apply the examination pressure almost equally to each of the vibration isolating rubbers 10, and it is possible to accurately perform a highly accurate test.

In the above-described embodiment, the floor frame has a folded shape. However, as shown in FIG. 10, a shape having a taper or the like can be handled by using the member 22b adjusted to the taper.

[0022]

As described above, the inspection apparatus of the elevator weighing apparatus according to the present invention can accurately adjust the height of the floor frame without deforming or damaging the floor frame by using a member conforming to the shape of the floor frame on which the load generator is mounted. An accurate test can be performed.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional testing device of an elevator weighing device.

FIG. 2 is an enlarged front view showing a load generator which is a main part of FIG.

FIG. 3 is a side view of the load generator of FIG. 2;

FIG. 4 is a front view showing a use state of a testing device of the elevator weighing device shown in FIG. 11;

5 is a side view of a testing device of the elevator weighing device shown in FIG. 4;

FIG. 6 is an explanatory diagram showing a use state of a testing device of a conventional elevator weighing device.

FIG. 7 is a perspective view of a bracket of a load generator according to the present invention;

FIG. 8 is a front view showing a testing device of a conventional elevator weighing device.

FIG. 9 is a front view showing a testing device of the elevator weighing device of the present invention.

FIG. 10 is an enlarged front view of a load generator, which is a main part of the inspection device of the elevator weighing device of the present invention.

FIG. 11 is a front view showing a testing device of the elevator weighing device of the present invention.

FIG. 12 is an enlarged side view of a load generator, which is a main part of the inspection device of the elevator weighing device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bracket 1b Push plate 1c Special nut 1d Bolt 1e Cylinder base 1f Guide 2 Fluid pressure device 2a Hydraulic cylinder 3 Push plate 6 Hydraulic pump 9a Floor frame 10 Anti-vibration rubber 12a Scale device 13a Support frame 20A-20D Load generator 21 Floor frame contact portion 22a member 22b member

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoji Yagawa 1-6-6 Kanda Nishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Service Co., Ltd. (72) Inventor Akihiko Numata 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture No. Tachitaga Engineering Co., Ltd.

Claims (2)

[Claims] An elevator comprising a floor frame of an elevator supported on a support frame via a plurality of elastic bodies, and a weighing device for measuring a loading load between the floor frame and the support frame. A substantially C-shaped bracket positioned directly above and below each elastic body, a bolt screwed to one end of the bracket, and a fluid pressure device attached to the bolt opposite the other end of the bracket And a load generator consisting of a nut for holding the bolt so that the position can be adjusted,
In the inspection device for an elevator weighing device that has a point of action of a force directly above and below each of the elastic bodies and applies a displacement to each of the elastic bodies, the approximately C-shaped bracket may have the irregularities of the floor frame shape. A testing device for an elevator weighing device, characterized by having a shape that conforms to the following. 2. The elevator weighing device according to claim 1, wherein the substantially C-shaped bracket of each of the load generators is capable of attaching and detaching a member that matches the unevenness of the floor frame or the support frame. Testing device.