JPH0441385A - Antiseismic device of winch for elevator - Google Patents

Abstract

PURPOSE:To prevent a winch from falling at the time of an earthquake by providing a stopper provided to stand in the upper surface of a lower fixing member, a vibration proof rubber fixed to the upper surface of the lower fixing member, and a regulating nut threaded at an upper end part of the stopper. CONSTITUTION:In a condition where a winch 4 is installed, if a horizontal force is applied to a vibration proofing rubber 13 corresponding to rolling of the winch 4 at the time of an earthquake, a stopper 11 is engaged with the inner circumferential surface of a screw cylinder 16 for prohibiting over- displacement of the vibration proofing rubber 13 and regulating the horizontal motion of a winch support table 5. If a vertical force is applied to the vibration preventing rubber 13 corresponding to pitching of the winch 4, a regulating nut 20 threaded at the stopper 11 is engaged with the upper surface of the screw cylinder 16, so upper motion of the winch support table 5 is regulated. The winch 4 can thus be prevented from falling securely at the time of an earthquake.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an earthquake-proofing device for an elevator hoisting machine, and more specifically, it relates to a vibration-proof rubber that absorbs the vibrations of the hoisting machine and a vibration-proofing device that prevents the hoisting machine from falling during an earthquake. The present invention relates to an earthquake-resistant device for an elevator hoisting machine, which is equipped with a stopper that prevents such damage.

[Prior Art] As a conventional seismic device for this type of elevator hoisting machine,
The techniques shown in FIGS. 3 to 5 are known.

Figure 3 is a front view showing the entire elevator hoisting machine equipped with a conventional earthquake-resistant device, Figure 4 is a partially cutaway front view showing an enlarged view of the earthquake-resistant device in Figure 3, and Figure 5 is a FIG. 3 is a front view showing how to install the hoist shown in the figure.

In the figure, (1) is the hoistway, (2) is the machine room installed at the top of the hoistway (1), (3) is the machine stand installed on the floor of the machine room (2), and (4) is the machine room installed on the floor of the machine room (2). is a hoisting machine, and (5) is a hoisting machine support stand that supports the hoisting machine (4).

(26) is a vibration isolating rubber that absorbs the vibration of the hoist (4), and a plurality of them are interposed between the support base (5) and the machine base (3). The lower part of each anti-vibration rubber (26) is a fixed plate (28)
It is fixed to the machine base (3) by a clip (29), bolt (30), and nut (31) through a fixing plate (32), and the upper part of the vibration isolating rubber (26) is fixed to a bolt (33) through a fixing plate (32). and the hoist support stand (5) by the chit (34)
is fixed.

(27) is a stopper that prevents the hoisting machine (4) from falling in the event of an earthquake, and the lower part of the stopper is connected to the machine platform by clips (36), bolts (37) and nuts (38) via a fixing plate (35). 3) is fixed. The threaded portion (39) at the upper end of the stopper (27) is inserted into the insertion hole (4) of the hoisting machine support base (5).
0), which protrudes upward through the regulating nut (4).
1) and a fastening nut (42) are screwed on.

In the above configuration, when installing the hoisting machine (4), as shown in FIG.
) and stopper (27), then install the hoisting machine (4).
) from above and insert the insertion hole (
40) on the stopper (27), and place the hoist support stand (5) on the vibration isolating rubber (26). A predetermined gap (
After adjusting the movement of the hoisting machine support stand (5) so that the position of At the same time, a regulating nut (41) and a binding nut (42) are screwed onto the threaded portion (39) of the stopper (27).

In this installed state, if a horizontal force is applied to the vibration isolating rubber (26) due to the horizontal shaking of the hoisting machine (4) during an earthquake, the stopper (27) will move inside the insertion hole (40). It engages with the peripheral surface, prevents excessive displacement of the vibration isolating rubber (26), and restricts horizontal movement of the hoist support stand (5). In addition, the hoisting machine (4
) When a vertical force is applied to the anti-vibration rubber (26) due to the vertical vibration of and restricts the upward movement of the hoisting machine support stand (5).

This prevents the hoisting machine (4) from falling during an earthquake.

In addition, as a seismic device for conventional elevator hoisting machines equipped with this kind of anti-vibration rubber and stopper, the Utility Model 6C130
The technique disclosed in Japanese Patent No. 281 is also known.

[Problems to be Solved by the Invention] However, according to the conventional earthquake-resistant device for an elevator hoist, as described above, the stopper (27) is attached to the anti-vibration rubber (2).
6), so it was necessary to arrange and manufacture both separately. In addition, the hoisting machine support stand (5
) to the stopper (27), move the heavy hoist support stand (5) at the installation site and insert it into the insertion hole (40).
There was also the trouble of having to adjust the gap (G) between the stopper (27) and the stopper (27).

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an earthquake-resistant device for an elevator hoisting machine that can economically produce a vibration-proof rubber and a stopper as an integral assembly, and can omit gap adjustment on site.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the earthquake-resistant device for an elevator hoisting machine of the present invention includes a lower fixing member fixed to the machine base, and an upper surface of the lower fixing member. A stopper installed, a rubber vibration isolator fixed to the upper surface of the lower fixing member, a through hole formed in the rubber vibration isolator so that the stopper passes through a predetermined gap, and an upper part of the vibration isolator. It is composed of an upper fixing member fixed to the hoisting machine support base, and a regulating nut screwed onto the upper end of the stopper so as to face the upper surface of the upper fixing member.

[Function] In the earthquake-resistant device for an elevator hoisting machine of the present invention, since the vibration isolating rubber and the stopper are provided on a common lower fixing member, both can be economically produced as an integral assembly. Additionally, when manufacturing this one-piece assembly, a predetermined gap is secured between the through hole of the vibration isolating rubber and the stopper, so it is possible to omit the work of adjusting the gap at the site where the hoist is installed. .

[Example] Hereinafter, an example embodying the present invention will be described based on the drawings.

FIG. 1 is a sectional view showing an earthquake-resistant device for an elevator hoisting machine according to an embodiment of the present invention, and FIG. 2 is a front view showing the entire elevator hoisting machine equipped with the earthquake-resistant device shown in FIG. 1. .

In the figure, (1) to (5) indicate the same components as the conventional example, (1) is the hoistway, (2) is the machine room, (3) is the machine platform, (4) is the hoisting machine, (5) is a hoist support stand.

(6) shows the whole seismic device of this embodiment, and a plurality of devices are interposed between the machine stand (3) and the hoisting machine support stand (5). (7) is a plate-shaped lower fixing member provided at the bottom of the seismic device (6), and is fixed to the machine base (3) with bolts (9) and nuts (10) via multiple clips (8). has been done. (11) is a rod-shaped stopper erected on the upper surface of the central portion of the lower fixing member (7), and a threaded portion (12) is carved in the upper end thereof.

(13) is a vibration isolating rubber vulcanized and bonded to the upper surface of the lower fixing member (7), and the stopper (11
) penetrates through the hole (14) through a predetermined gap (G).
is installed through it. (15) is a plate-shaped upper fixing member vulcanized and bonded to the upper surface of the vibration isolating rubber (13), and a threaded cylinder having an inner diameter approximately the same as that of the through hole (14) is provided in the center thereof. (16) is integrally protruded. Then, the upper fixing member (15) is attached to the washer (18) by inserting the threaded cylinder (16) into the insertion hole (17) of the hoisting machine support base (5) from below.
) is configured so that the upper part of the vibration isolating rubber (13) can be fixed to the hoist support stand (5) by tightening with a nut (19).

(20) is the screw cylinder (16) of the upper fixing member (15);
The threaded part (1) of the stopper (11) is
A regulating nut (21) is screwed onto the regulating nut (2), and a locking nut (21) is screwed onto the threaded portion (12) overlapping the regulating nut (20).

Next, the operation of the seismic device for the elevator hoisting machine of this embodiment configured as described above will be explained.

In this embodiment, the lower fixing member (7), the stopper (
11), anti-vibration rubber (13), and upper fixing member (15)
are assembled together to produce an earthquake-resistant device (6).

This seismic protection M (6) is then attached to the bolt (9) and nut (10) via the clip (8) at the lower fixing member (7).
is attached to the machine stand (3).

When installing the hoisting machine (4) in this state, suspend the hoisting machine (4) and the hoisting machine support base (5) from above, and insert the hoisting machine into the insertion hole of the hoisting machine support base (5). (17) to the upper fixing member (1
5) through the threaded tube (16) and attach it to the hoisting machine support stand (5).
is placed on the anti-vibration rubber (13). Next, the screw tube (1
6), tighten the nut (19) through the washer (18),
The upper part of the vibration isolating rubber (13) is fixed to the hoisting machine support stand (5).

Thereafter, by screwing the regulating nut (20) and the locking nut (21) onto the threaded portion (12) of the stopper (11), the installation of the hoist (4) is completed.

In this installed state, if a horizontal force is applied to the vibration isolating rubber (13) due to the horizontal shaking of the hoisting machine (4) during an earthquake, the stopper (11) will move inside the screw tube (16). It engages with the peripheral surface, prevents excessive displacement of the vibration isolating rubber (13), and restricts horizontal movement of the hoist support stand (5). Also, the hoisting machine (
4) When vertical force is applied to the vibration isolating rubber (13), the regulating nut (20) screwed onto the stopper (11) engages with the top surface of the screw tube (16). and restricts upward movement of the hoisting machine support stand (5). This reliably prevents the hoisting machine (4) from falling during an earthquake.

As described above, the earthquake-resistant device (6) of the elevator hoisting machine (4) of this embodiment includes the lower fixing member (7) fixed to the machine base (3) and the upper surface of this lower fixing member (7). An erected stopper (11), a vibration-proof rubber (13) fixed to the upper surface of the lower fixing member (7), and a vibration-proof rubber (13) fixed to the upper surface of the lower fixing member (7) are installed so that the stopper (11) penetrates through a predetermined gap (G). Shaking rubber (13)
an upper fixing member (15) having a through hole (14) formed therethrough, and a screw tube (16) for fixing the upper part of the vibration isolating rubber (13) to the hoisting machine support base (5), and the screw tube. The threaded portion (
12) and a regulating nut (20) screwed onto the shaft.

Therefore, according to the seismic device (6) of the elevator hoisting machine (4) of the above embodiment, the vibration isolating rubber (13) and the stopper (11) are provided on the common lower fixing member (7). , both can be manufactured economically as an integral assembly.

In addition, when manufacturing this integral assembly, a predetermined gap (G) is secured between the through hole (14) of the vibration isolating rubber (13) and the stopper (11), which is different from the conventional one. The installation time can be shortened by omitting the trouble of adjusting the gap (G) at the installation site of the hoisting machine (4).

Note that the present invention is not limited to the above embodiments,
For example, the configuration of each part can be modified and embodied as desired without departing from the spirit of the present invention, such as by appropriately changing the shapes of the vibration isolating rubber and the stopper.

[Effects of the Invention] As described above, the earthquake-resistant device for an elevator hoisting machine of the present invention includes a lower fixing member fixed to the machine base, a stopper erected on the upper surface of the lower fixing member, and a lower fixing member. A vibration isolating rubber fixed to the top surface, a through hole formed in the vibration isolating rubber so that the stopper passes through it through a predetermined gap, and an upper part that fixes the upper part of the vibration isolating rubber to the hoist support base. It is composed of a fixing member and a regulating nut screwed onto the upper end of the stopper so as to face the upper surface of the upper fixing member, and the anti-vibration rubber and stopper can be assembled together economically. In addition to being easy to manufacture, it is possible to secure a predetermined gap between the through hole and the stopper during the manufacture of the integral assembly, thereby eliminating the need for on-site gap adjustment work.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an earthquake-resistant device for an elevator hoisting machine according to an embodiment of the present invention, FIG. 2 is a front view showing the entire elevator hoisting machine equipped with the seismic device shown in FIG. Figure 3 is a front view showing the entire elevator hoisting machine equipped with a conventional earthquake-resistant device, Figure 4 is a partially cutaway front view showing an enlarged view of the earthquake-resistant device in Figure 3, and Figure 5 is the same as Figure 3. FIG. In the figure, 3: Machine stand 4: Hoisting machine 5: Hoisting machine support stand 6: Earthquake-resistant device 7: Lower fixing member 11: Stopper 13: Vibration-proof rubber 14
:Through hole 15: Upper fixing member 20: Regulation nut G
: It is a gap. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts. Agent: Patent attorney Masuo Odai and two others Figure 2 4 Hoisting machine Figure 3 Figure 5

Claims (1)

[Scope of Claims] A lower fixing member fixed to a machine table; a stopper erected on the upper surface of the lower fixing member; a vibration-proof rubber disposed on the upper surface of the lower fixing member; and the stopper a through hole formed through the vibration isolating rubber through a predetermined gap; an upper fixing member that fixes the upper part of the vibration isolating rubber to a hoisting machine support; and facing the upper surface of the upper fixing member. 1. An earthquake-resistant device for an elevator hoisting machine, comprising a regulating nut screwed onto an upper end of a stopper.