JP2002167144A - Balance weight aseismic device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability in mounting an aseismic device. SOLUTION: Both end parts of a front connector 22 for connecting a pair of vertical poles 3 at a front side of a weight frame 1 are mounted on front faces 2b of a pair of vertical poles 2 by means of bolts 23, fitting metals 24 are mounted on both end parts of the front connector 22 by means of bolts 25, and both end parts of a rear connector 26 for connecting a pair of fitting metals 24 at a rear side of the weight frame 1 are mounted on the pair of fitting metals 24 by means of bolts 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a counterweight seismic device for an elevator, which prevents a vertical column of a weight frame from being deformed by an earthquake and causing a stacked weight to fall off.

[0002]

2. Description of the Related Art FIG. 14 is a front view showing a counterweight of a conventional elevator disclosed in, for example, Japanese Patent No. 2774902, FIG. 15 is a side view of a main part of FIG. 14, and FIG.
FIG. 17 is an exploded perspective view showing a main part of FIG. 14 along the line VI-XVI.

In the drawing, a weight frame 1 comprises a pair of vertical columns 2 having a U-shaped cross section which are arranged in parallel at a distance from each other, an upper frame 3 fixed between upper ends of these vertical columns 2, and a vertical frame. The lower frame 4 is fixed between the lower ends of the columns 2. Guide shoes 5 that engage with guide rails 20 (FIG. 16) installed on the hoistway are attached to both ends of the upper frame 3 and the lower frame 4, respectively.

The upper frame 3 has a plurality of shackle rods 6.
Is connected. These shackle rods 6
The terminal of the main rope 7 is connected. A compression spring 8 is provided between the shackle rod 6 and the upper frame 3. An intermediate stopper 9 is attached to an intermediate portion of the vertical column 2. A plurality of stacked weights 10 are stacked and held inside the weight frame 1.

[0005] A pair of front and rear band plates 11 is attached to a vertical intermediate portion of the weight frame 1. Both ends of the strip 11 are bent at a right angle, and are fixed to the vertical column 2 by a plurality of bolts 12. A mounting metal 13 to which a bolt 12 is screwed is welded to the vertical column 2. A plurality of clamps 14 are interposed between the mounting metal 13 and the band plate 11.

In the conventional counterweight described above, when an earthquake occurs, the vertical column 2 is twisted and deformed due to the horizontal swing of the laminated weight 10. On the other hand, by fastening the strip 11 serving as an earthquake-resistant device before and after the weight frame 1, the deformation of the vertical columns 2 is prevented, and the stacked weights 10 are prevented from falling off.

[0007]

In the conventional counterweight of an elevator constructed as described above, when the strip plate 11 is additionally attached to an existing elevator, the guide shoe 5 is removed before the weight frame 1 is mounted. It was necessary to rotate and change the direction to secure a work space, and the workability was poor. In addition, since the work of attaching the mounting metal 13 to the vertical column 2 is an extremely unstable operation, the vertical column 2 cannot be threaded, and the mounting metal 13 is fixed to the vertical column 2 by welding. It took time and trouble. Furthermore, when welding the attachment 13, an operator is required to support the counterweight in an unstable state, and the installation cannot be performed by one person.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a counterweight seismic resistance for an elevator in which a seismic device can be easily attached and workability can be improved. The aim is to obtain a device.

[0009]

According to the first aspect of the present invention, there is provided a counterweight seismic device for an elevator, comprising: a weight frame having a pair of U-shaped vertical columns having a side surface, a front surface, and a rear surface; Inserted inside the pillar and stacked in the longitudinal direction of the vertical pillar, attached to the counterweight of the elevator equipped with a plurality of laminated weights held in the weight frame, to prevent deformation of the vertical pillar There is a pair of vertical pillars, both ends of which are attached to the front surfaces of the vertical pillars by bolts, and a pair of front-side connecting bodies that connect the pair of vertical columns at the front side of the weight frame, and a pair of bolts attached to both ends of the front-side connecting body. Both ends are attached to the mounting metal and the pair of mounting metal by bolts, and a rear connecting body that connects the pair of mounting metal on the rear side of the weight frame is provided.

According to a second aspect of the present invention, there is provided a counterweight seismic device for an elevator, wherein a contact surface abutting on a vertical column, a front joint surface to which a front joint is joined, and a rear joint are joined. In this case, a mounting metal having a rear joint surface is used.

According to a third aspect of the present invention, there is provided a counterweight seismic device for an elevator, wherein a front connection surface and a rear connection surface are provided with screw holes into which bolts for attaching a front connection body and a rear connection body are screwed. It is provided.

According to a fourth aspect of the present invention, there is provided a counterweight seismic device for an elevator, wherein a strip-shaped flat plate is used as each of the front connecting member and the rear connecting member.

An elevator counterweight seismic device according to a fifth aspect of the present invention uses a rod-shaped front connection member and a rear connection member.

According to a sixth aspect of the present invention, there is provided a counterweight seismic device for an elevator, comprising: a front connecting member having a rope portion; and a mounting portion for mounting to mounting metal members located at both ends of the rope portion. This is the one using the side connection body.

According to a seventh aspect of the present invention, there is provided a counterweight seismic device for an elevator, wherein an intermediate stopper portion protruding toward a guide rail for guiding the lifting and lowering of the counterweight is provided on the mounting member.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a front view showing a counterweight of an elevator according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a main part of the counterweight of FIG. 1, and FIG. 3 is a main part of the counterweight of FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG.

In the drawing, a weight frame 1 is composed of a pair of vertical columns 2 having a U-shaped cross section and arranged in parallel at a distance from each other, an upper frame 3 fixed between upper ends of these vertical columns 2, and a vertical frame. The lower frame 4 is fixed between the lower ends of the columns 2. Guide shoes 5 that engage with guide rails 20 (FIG. 4) installed on the hoistway are attached to both ends of the upper frame 3 and the lower frame 4, respectively.

The upper frame 3 has a plurality of shackle rods 6.
Is connected. These shackle rods 6
The terminal of the main rope 7 is connected. A compression spring 8 is provided between the shackle rod 6 and the upper frame 3.

Inside the weight frame 1, there are a plurality of stacked weights 21.
Are stacked and held. The vertical column 2 includes a side surface 2 a facing the side surface of the stacked body 21 A of the stacked weight 21,
A has a front surface 2b and a rear surface 2c facing the front and rear surfaces at both ends in the width direction of A. An intermediate stopper 9 is attached to an intermediate portion of the vertical column 2.

A front connector 22 made of a band-shaped flat plate (for example, a steel plate) is attached to an intermediate portion in the longitudinal direction (vertical direction) of the pair of vertical columns 2. Both ends of the front connector 22 are attached to the front surface 2 b of the vertical column 2 with a plurality of bolts 23, and connect the pair of vertical columns 2 on the front side of the weight frame 1.

At both ends of the front connecting body 22, mounting metal 24 having a U-shaped cross section is mounted by a plurality of bolts 25, respectively. A rear connecting body 26 formed of a band-shaped flat plate that connects the pair of mounting metals 24 at the rear side of the weight frame 1 is attached to the pair of mounting metals 24. Rear connector 26
Are mounted on a pair of mounting members 24 with a plurality of bolts 27 at both ends.

The mounting metal 24 has a contact surface 24a which is in contact with the vertical column 2 and a front joint surface 24 to which the front connector 22 is joined.
b and a rear joint surface 24c to which the rear connector 26 is joined. Front joining surface 24b and rear joining surface 24c
Has a plurality of screw holes 24 into which bolts 25 and 27 are screwed.
d and 24e are provided. On the front surface 2b of the vertical column 2,
A plurality of screw holes 2d into which the bolts 23 are screwed are provided.

The bolts 23, 25 and 27 are tightened via washers 28 and spring washers 29. Between the front surface 2b of the vertical column 2 and the front connector 22, a plurality of clamps 30 that allow the passage of the bolts 23 are interposed as necessary. The counterweight seismic device according to the first embodiment includes a front connector 22, bolts 23, 25, and 27, a fitting 24, a rear connector 26, a washer 28, a spring washer 29, and a clamp 30.

In such a counterweight seismic device, since the left and right vertical columns 2 are connected by the front and rear connecting bodies 22 and 26, deformation of the vertical columns 2 due to the earthquake is prevented, and Shedding is prevented. In addition, the processing for the existing counterweight is only required to provide the screw hole 2d on the front surface 2b of the vertical column, and the seismic device can be easily attached on site, and the workability can be improved.

Embodiment 2 In the first embodiment,
Although the front and rear connectors 22 and 26 made of band-shaped flat plates are shown, rod-like front and rear connectors 31 and 32 may be used as shown in FIGS. Further, if necessary, a plurality of front and rear connectors 31 and 32 may be arranged.

Embodiment 3 FIG. In addition, for example, FIGS.
As shown in the figure, flexible rope portions 33a, 34a and mounting members 2 located at both ends of the rope portions 33a, 34a.
Alternatively, front and rear connecting bodies 33 and 34 each having an attachment portion 33b, 33c, 34b, and 34c to the fourth member 4 may be used.

Embodiment 4 Next, FIG. 11 is a perspective view showing a main part of a counterweight of an elevator according to a fourth embodiment of the present invention, FIG. 12 is a side view showing a main part of the counterweight of FIG. 11, and FIG. It is sectional drawing which follows the XIII-XIII line.

In the fourth embodiment, a mounting metal 35 serving as an intermediate stopper is used. The mounting metal 35 includes a contact surface 35a that is in contact with the vertical column 2, a front joint surface 35b to which the front connector 22 is joined, a rear joint surface 35c to which the rear connector 26 is joined, and a guide. And an intermediate stopper 35d protruding toward the rail 20. Front joining surface 35
A plurality of screw holes 35e and 35f into which the bolts 25 and 27 are screwed are provided in the b and the rear joint surface 35c.
Other configurations are the same as those of the first embodiment.

In such a counterweight seismic device, the intermediate stopper 35d is provided on the mounting member 35, so that it is not necessary to separately attach an intermediate stopper, and the number of parts can be reduced and the cost can be reduced. .

In the first to fourth embodiments, the counterweight seismic device may be arranged only at the center of the counterweight in the vertical direction, and the counterweight seismic device may be arranged at a plurality of locations of the counterweight.

[0031]

As described above, according to the first aspect of the present invention, the counterweight seismic device for an elevator according to the first aspect of the present invention includes a pair of vertical columns connected to a pair of vertical columns at the front side of the weight frame. Attach bolts to the front of the front connector, attach bolts to both ends of the front connector with bolts respectively, and connect both ends of the rear connector to the pair of As a result, the vertical columns are prevented from being deformed due to the earthquake, and the stacked weights are prevented from falling off. In addition, the existing counterweight can be processed simply by providing a screw hole in the front of the vertical column, no welding is required, and the seismic device can be easily installed on site to improve workability. Can be.

According to a second aspect of the present invention, there is provided a counterweight seismic device for an elevator, wherein a contact surface abutting on a vertical column, a front joint surface to which a front joint is joined, and a rear joint are joined. Since the mounting metal having the rear joint surface is used, the front and rear connecting bodies can be mounted on the vertical column with a simple configuration.

According to a third aspect of the present invention, there is provided a counterweight seismic device for an elevator, wherein a screw hole is provided in the front joint surface and the rear joint surface, into which a bolt for attaching the front joint and the rear joint is screwed. Therefore, it is possible to further facilitate the work of mounting the seismic device on site.

The elevator counterweight seismic device according to the fourth aspect of the present invention uses strip-shaped flat plates as the front connecting member and the rear connecting member, respectively. Can be.

In the elevator counterweight seismic device according to the fifth aspect of the present invention, since the rod-shaped front and rear connecting members are used, deformation of the vertical column due to the earthquake can be suppressed with a simple configuration.

According to a sixth aspect of the present invention, there is provided a counterweight seismic device for an elevator, comprising a front portion and a rear portion each having a rope portion, and mounting portions for mounting metal members located at both ends of the rope portion. Since the connecting body is used, the deformation of the vertical column due to the earthquake can be suppressed with a simple configuration.

According to the seventh aspect of the present invention, an intermediate stopper portion protruding toward the guide rail for guiding the lifting and lowering of the counterweight is provided on the mounting metal. Can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a counterweight of an elevator according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a main part of the counterweight of FIG. 1;

FIG. 3 is a side view showing a main part of the counterweight of FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a perspective view showing a main part of a counterweight of an elevator according to a second embodiment of the present invention.

FIG. 6 is a side view showing a main part of the counterweight of FIG. 5;

7 is a sectional view taken along the line VII-VII in FIG.

FIG. 8 is a perspective view showing a main part of a counterweight of an elevator according to a third embodiment of the present invention.

FIG. 9 is a side view showing a main part of the counterweight of FIG. 8;

FIG. 10 is a sectional view taken along line XX of FIG. 9;

FIG. 11 is a perspective view showing a main part of a counterweight of an elevator according to a fourth embodiment of the present invention.

FIG. 12 is a side view showing a main part of the counterweight of FIG. 11;

FIG. 13 is a sectional view taken along the line XIII-XIII of FIG.

FIG. 14 is a front view showing an example of a conventional counterweight of an elevator.

FIG. 15 is a side view of a main part of FIG.

FIG. 16 is a sectional view taken along the line XVI-XVI in FIG.

FIG. 17 is an exploded perspective view showing a main part of FIG.

[Explanation of symbols]

1 weight frame, 2 vertical columns, 2a side surface, 2b front surface, 2c
Rear surface, 21 stacked weights, 22, 31, 33 front connector, 23, 25, 27 bolts, 24, 35 mounting metal, 2
4a abutment surface, 24b front joint surface, 24c rear joint surface, 24d, 24e screw hole, 26, 32, 34 rear connector, 33a, 34a rope portion, 33b, 33c,
34b, 34c Mounting part, 35d Intermediate stopper part.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shiho Tamiya 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Corporation (reference) 3F304 CA04 EA07 EA22 3F306 AA04 DA18

Claims (7)

[Claims] 1. A weight frame having a pair of vertical columns having a side surface, a front surface, and a rear surface and having a U-shaped cross section, and both ends inserted into the vertical columns and laminated in the longitudinal direction of the vertical columns, A counterweight seismic device for an elevator attached to a counterweight of an elevator having a plurality of stacked weights held in a frame and for preventing deformation of the vertical column, wherein a front face of the pair of vertical columns is provided. Both ends are attached by bolts, and a front connecting body that connects the pair of vertical columns at the front side of the weight frame, a pair of mounting metals respectively attached to both ends of the front connecting body by bolts, and the pair A balancing weight seismic isolation device for an elevator, comprising: a rear connecting body connected to the pair of mounting metals at the rear side of the weight frame, with both ends attached to the mounting metal by bolts. 2. A mounting surface comprising: a contact surface which is in contact with a vertical column;
The balancing weight seismic isolation device for an elevator according to claim 1, further comprising a front joint surface to which the front joint is joined, and a rear joint surface to which the rear joint is joined. 3. The front joint surface and the rear joint surface are provided with screw holes into which bolts for attaching the front joint and the rear joint are screwed.
An elevator counterweight seismic device as described. 4. The counterweight seismic device for an elevator according to claim 1, wherein each of the front connector and the rear connector is a band-shaped flat plate. 5. An apparatus according to claim 1, wherein each of the front connector and the rear connector has a rod shape. 6. The front connecting body and the rear connecting body each have a rope portion and a mounting portion to a mounting metal located at both ends of the rope portion, respectively. An elevator counterweight seismic device according to claim 3. 7. The mounting member according to claim 1, wherein the mounting member is provided with an intermediate stopper portion projecting toward a guide rail for guiding the lifting and lowering of the counterweight. Elevator counterweight seismic device.