JPH0720440U - Anti-vibration device that also serves as an anti-seismic stopper used for anti-vibration bases for air conditioning equipment, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] With a simple structure that also functions as an anti-seismic stopper, it is also an anti-seismic stopper that is inexpensive and easy to adjust the clearance until the anti-sway device operates, while maintaining the anti-sway effect. A shake prevention device is provided. [Structure] An elastic body mounting member 5 having an elastic body mounting hole 7 is provided on one side surface of either the gantry 3 or the base 1,
The elastic member 9 having the through hole 10 is fitted into the elastic body mounting hole 7, the washer 11 is placed on the upper surface of the elastic member 9, and the bolt fixing member 6 is provided on the side surface of the other base 1 or pedestal 3. The bolt 12 is inserted into the washer 11 and the through hole 10, and the stopper elastic member 13 is arranged so as to penetrate the bolt 12 and face the elastic body mounting member 5, and the stopper metal member 15 having the female screw 16 and the nut 17 are used. The bolt 12 is positioned and screwed, and the tip end side of the bolt 12 is fixed to the bolt fixing member 6 with the two nuts 18 and 19.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is an anti-sway device that is installed in a building by attaching it to the bottom of an air-conditioning facility that generates vibration, and is used in a vibration-isolating base of an air-conditioning facility that reduces the transmission of vibrations from the air-conditioning facility to the building. In particular, it has a simple structure that also functions as an anti-seismic stopper, and while maintaining its anti-vibration effect, it is inexpensive, and the clearance until the anti-vibration device operates is easy to adjust. It is about.

[0002]

[Prior art]

 The applicant of the present application has proposed, from Japanese Patent Application No. 4-42152, an anti-vibration device that also serves as an anti-seismic stopper that is used for a vibration isolation table of this type of air conditioning equipment. In this device, as shown in FIGS. 6 and 7, elastic body mounting members 33 having elastic body mounting holes 25 are fixed to the four corners of the base 21, and elastic members 26, 26 such as rubber having through holes 27 are provided. The elastic members 26 and 26 are fitted so as to face the upper and lower portions thereof through the mounting holes 25, and a pair of washers 29 and 29 are superposed on the upper and lower outer surfaces of the elastic members 26, 26, and bolts are provided at the four corners of the other mount 23. The fixing member 34 is fixed, and the bolt 30 is fixed to the fixing member 34 in the vertical direction. When the tip end of the bolt 30 is inserted into the holes of the washers 29, 29 and the through holes 27, 27, the bolt 30 is screwed together. The nuts 32, 32 clamp the outer surfaces of the pair of washers 29, 29. According to the structure of the present invention, the structure is simple and has a sufficient anti-sway effect, and can also serve as a seismic resistant stopper. As a result, it is possible to shorten the time required to install and adjust the anti-vibration table.

However, in this structure, the elastic body mounting member 33 and the bolt fixing member 34 are fixed to the four corners of the base 21 and the pedestal 23, which are required to have sufficient rigidity in terms of strength. Therefore, the elastic body mounting member 33 and the bolt fixing member 34 are also required to have sufficient rigidity, and are composed of a thick plate material and a reinforcing member. Therefore, the anti-vibration table was expensive. In addition, because the shape and size of the elastic member 26 limits the amount of clearance adjustment until the seismic stopper and anti-sway device are activated, if you try to set the clearance suitable for the machine mounted on the vibration isolation table, Another drawback is that the elastic member 26 having a different shape and size must be prepared separately.

[0004]

[Problems to be solved by the device]

 The present invention has been made in order to solve the above-mentioned drawbacks, and has a simple structure, can also serve as an anti-seismic stopper, has a sufficient anti-sway effect, and is inexpensive, until the anti-sway device operates. It is an object of the present invention to provide an anti-vibration device that also serves as an anti-vibration stopper for an anti-vibration table used in air conditioning equipment whose clearance can be easily adjusted.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the structure of the present invention will be described with reference to the reference numerals of the drawings which are the embodiments. According to the present invention, an elastic body mounting hole 7 is provided on either side of the pedestal 3 or the base 1. The elastic member mounting member 5 having the elastic member 9 is provided, the elastic member 9 having the through hole 10 is fitted into the elastic member mounting hole 7, and the washer 11 is placed on the upper surface of the elastic member 9 so as to overlap the other mount 3 or A bolt fixing member 6 having a through hole 8 is provided on the side surface of the base 1, a bolt 12 is inserted into the hole of the washer 11 and a through hole 10 of the elastic member 9, and a stopper having a hole 14 in the center. The elastic member 13 is arranged so as to penetrate the bolt 12 so as to face the elastic body mounting member 5, and is positioned and screwed by a stopper fitting 15 having a female screw 16 and a nut 17, and the tip side of the bolt 12 is Insert through the through hole 8 A seismic stopper combined snubber equipment used for vibration isolation, such as fixedly configured air conditioning equipment with a nut 18 and a nut 19 screwed on the bolt 12.

[0006]

[Action]

 In the anti-vibration stopper / shake prevention device of the vibration isolating table used in the air conditioning equipment configured as described above, the gantry 3 includes the bolt 12, the washer 11, the elastic member 9, the elastic body mounting member 5, the stopper elastic member 13, and the stopper. Since it is integrally connected to the base 1 via the metal fitting 15, the nut 17, the nut 18, the bolt fixing member 6, and the nut 19, external forces in all directions other than a large vertical direction such as an earthquake or horizontal action are applied. However, it does not fall out of Base 1. Further, when a bending moment that tilts the upper surface of the anti-vibration base is applied by wind pressure or the like, the pedestal 3 is tilted as shown in FIG. 5, and the seismic stoppers / shake-stoppers 4a and 4a on one side are lowered. Each of the stopper elastic members 13 and 13 is compressed, and the opposite side anti-vibration stopper / shakeproof devices 4b 1 and 4b are compressed at the flange portions 9a and 9a of the upper elastic members 9 and 9 respectively. The seismic stopper combined with the anti-sway device of FIG. 4 will be effective, and when the gantry 3 is tilted in the opposite direction of the figure, an operation symmetrical to the above occurs and the stopper elastic members 13 on the opposite side to the front, 13 and the flange portions 9a, 9a of each elastic member are compressed, and similarly, all seismic-resistant stoppers and anti-sway devices are also effective, so that bending moments in all directions are eventually obtained. , Become Rukoto provide a sufficient snubber effect.

On the other hand, since the elastic body mounting member 5 and the bolt fixing member 6 are provided on each side surface of the pedestal 3 or the base 1, as long as the elastic body mounting member 5 and the bolt fixing member 6 have sufficient rigidity as members of the seismic stopper and the anti-sway device. Since it is good, it is possible to use a pressed product of a thin plate material, eliminate the need for a reinforcing member, and reduce the cost of the vibration isolation table.

Further, the bolt 12 is inserted into the hole of the washer 11 and the through hole 10 of the elastic member 9, and the stopper elastic member 13 made of rubber or the like having the hole 14 in the center is passed through the bolt 12 to allow the elastic property. It is arranged so as to face the body mounting member 5, and is positioned and screwed with a stopper metal fitting 15 having a female screw 16 and a nut 17, and the tip side of the bolt 12 is inserted into the through hole 8 and screwed into the bolt 12. It is fixed with nuts 18 and 19. Therefore, the nuts 18 and 19 can adjust the vertical position of the bolt 12, and the stopper metal member 15 having the menu 16 and the nut 17 can adjust the vertical position of the stopper elastic member 13 to prevent vibration. It is possible to easily set the clearance until the anti-sway device operates, which is suitable for the machine mounted on the table.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a base of an anti-vibration base fixed to a building foundation, and 2 is a base 3 to which an air-conditioning equipment is attached by an anti-vibration member such as a coil spring. I support you.

Reference numeral 4 denotes an anti-vibration device that also serves as an anti-seismic stopper, and as shown in FIG. 2, it is provided at four positions on the vibration-isolating base and is shown as 4a, 4a, 4b, and 4b. It is done like. That is, 5 is an elastic body attachment member fixed to the inner peripheral surface of the gantry 3, and an elastic body attachment hole 7 for fitting the elastic member 9 is provided. Reference numeral 6 is a bolt fixing member fixed to the base 1, and has a through hole 8 for inserting the bolt 12. An elastic member 9 made of rubber or the like having a substantially cylindrical body and a flange portion 9a at one end is fitted in the elastic body mounting hole 7. Furthermore, a washer 11 is placed on the upper surface of the flange portion 9a of the elastic member, and the bolt 12 is inserted into the hole of the washer 11 and the through hole 10 of the elastic member 9, and a rubber having a hole 14 in the center is used. The stopper elastic member 13 is formed so as to penetrate the bolt 12 so as to face the elastic body mounting member 5, and is positioned and screwed by the stopper metal fitting 15 having the female screw 16 and the nut 17, and the tip end side of the bolt 12 is connected. It is inserted through the through hole 8 and fixed by nuts 18 and 19 screwed into the bolt 12. The stopper elastic member 13 has a columnar shape with a substantially U-shaped cross section, has a hole 14 for inserting the bolt 12 in the center thereof, and is arranged with the recess facing upward.

In this embodiment, the elastic body mounting member 5 is fixed to the inner peripheral surface of the pedestal 3 and the bolt fixing member 6 is fixed to the inner peripheral surface of the base 1. However, the present invention is not limited to this. Alternatively, the opposite combination may be used, or the elastic body mounting member 5 and the bolt fixing member 6 may be fixed to the outer peripheral surfaces of the pedestal 3 and the base 1 in any combination.

Further, if the through hole 8 of the bolt fixing member 6 is a female screw, either one of the nuts 18 and 19 can be omitted, and the direction of the bolt 12 may be reversed in the vertical direction. Further, the elastic member 9 and the washer 11, and the stopper elastic member 13 and the stopper fitting 15 may be integrated by an adhesive. The number of seismic stopper and anti-sway device is not limited to four.

[0013]

[Effect of device]

 As described above, according to the present invention, the elastic body mounting member and the bolt fixing member can be a pressed product using a thin plate material, the reinforcing member is not necessary, and the vibration isolation table can be inexpensive. You can Also, since the bolt and the stopper elastic member can be adjusted in the upward and downward positions independently, it is possible to easily set the clearance until the anti-sway device operates. Moreover, there is no need to provide a separate seismic stopper, and by arranging the elastic member and the stopper elastic member facing each other, the effect of preventing swaying is exerted in both the vertical direction, so vibrations due to external forces such as wind pressure can be used. Even if a bending moment acts on the table, all the seismic stopper and anti-sway devices installed on the anti-vibration table will be effective, and a sufficient anti-sway effect will be obtained.

[Brief description of drawings]

FIG. 1 is an enlarged partial view of an embodiment of the present invention (a view from the direction of BB in FIG. 2).

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is a front view of an embodiment of the present invention.

FIG. 4 is a side view of an embodiment of the present invention.

FIG. 5 is a view showing a state when a bending moment is applied to the seismic stopper / sway prevention device according to the embodiment of the present invention.

FIG. 6 is a plan view of an anti-vibration table provided with a conventional anti-shake device that also serves as a seismic stopper.

FIG. 7 is an enlarged partial side view (a part of which is a sectional view) of a conventional seismic stopper / shake stopper.

[Explanation of symbols]

 1 base 2 anti-vibration member 3 frame 4, 4a, 4b anti-shake device that also serves as a seismic stopper 5 elastic body mounting member 6 bolt fixing member 7 elastic body mounting hole 8 through hole 9 elastic member 9a flange portion 10 through hole 11 washer 12 bolt 13 Stopper elastic member 14 Hole 15 Stopper metal fitting 16 Female thread 17 Nut 18 Nut 19 Nut A Air conditioning equipment

Claims (1)

[Scope of utility model registration request] 1. A vibration isolation table, such as an air conditioner, in which a frame (3) is disposed on a base (1) via a vibration isolation member (2), and either the frame (3) or the base (1) is provided. An elastic body mounting member (5) having an elastic body mounting hole (7) on the side surface of the
And an elastic member (9) having a through hole (10) is fitted into the elastic body mounting hole (7), and a washer (11) is placed on the upper surface of the elastic member (9) in an overlapping manner. A bolt fixing member (6) having a through hole (8) is provided on a side surface of the base (1) or the mount (3), and a bolt (12) is inserted into the hole of the washer (11) and the through hole (10). Further, a stopper elastic member (13) having a hole (14) in the center is arranged so as to penetrate the bolt (12) so as to face the elastic body mounting member (5), and has a female screw (16). A nut (18) screwed to the bolt (12) by positioning and screwing with a stopper fitting (15) and a nut (17) and inserting the tip side of the bolt (12) into the through hole (8). And anti-vibration table for air conditioners, etc., which is fixed with nuts (19) Seismic stopper combined snubber device used.