JPH08247579A - Vibration isolator for tube - Google Patents

Abstract

PURPOSE: To provide a low-cost vibration isolator for a tube having large general purposes in which vibration energy generated in the refrigerant tube of an air conditioner or a refrigerator can be effectively absorbed by easily assembling less number of part items. CONSTITUTION: The vibration isolator for a tube comprises a rubber weight 13 containing rubber as a main ingredient, a through hole 14 provided at the weight, a cutout 15 reaching the hole, a tube 16 of a parallel part, a rotation preventive stopper 17 made of a U-shaped coupling member 19 for coupling the plurality of the weights 13 inserted into the tube 16 at the weight 13, and a coupling hole 18 for inserting the member 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration device for piping, which damps vibrations generated in refrigerant piping of air conditioners and refrigerators.

[0002]

2. Description of the Related Art Conventionally, as this type of vibration isolator, there is one disclosed in Japanese Patent Laid-Open No. 6-17973.

This conventional example will be described below with reference to FIG. That is, cylindrical rubber weights 3 each having a through hole 1 opened in the axial direction and a notch 2 reaching the through hole 1 and having rubber as a main component are respectively inserted into the parallel portions of the pipe 4, and two rubber weights are inserted. As the coupling means 5 of 3, the two rubber weights 3 are fixed by the fixing member 10 having the claws 8 hanging on the upper surface 6 and the lower surface 7 of the two rubber weights 3 and the left and right claws 9 hanging on the respective cuts 2 of the rubber weights 3. If the distance between the two parallel pipes 4 is large, the spacer 11 is attached to the fixing member 10 with an adhesive, and the binding band 12 made of resin is wound around the rubber weight 3 including the fixing member 10. It was an integral structure.

[0004]

However, in the vibration isolator for piping having the above-described conventional structure, the number of constituent parts,
There is a drawback that the number of assembling steps is large, it is troublesome, and if the distance between the parallel pipes is large, the size of the fixing member must be changed, a spacer is also required, and the number of parts and assembling steps are further increased.

The present invention solves the above-mentioned problems of the conventional example, and can be easily assembled with a small number of parts, and even if the size of parallel piping is large, it can be assembled without changing or increasing the parts, and vibration of the piping The purpose of the present invention is to provide a vibration damping device for pipes, which can absorb energy effectively, is inexpensive, and is highly versatile.

[0006]

In order to achieve the above object, a vibration damping device for a pipe according to the present invention reaches a through-hole provided in a rubber weight having rubber as a main component, a through-hole provided in the rubber weight, and a through-hole. It consists of a notch and a U-shaped connecting member that connects a plurality of rubber weights inserted in the pipe.The rubber weight has a rotation stopper and a connecting hole into which the U-shaped connecting member is inserted. This is a configuration in which individual rubber weights are integrated by using a U-shaped connecting member.

Further, the rubber weight is connected and integrated by using a metal S-hook type connecting member.

In addition, the cylindrical rubber weight having the eccentric through hole and the connecting member for fixing the outer circumference of the plurality of rubber weights to each other are fixed to each other so that the rubber weights inserted into the parallel pipes are fixedly connected and integrated. is there.

[0009]

According to the present invention, according to the above construction, the plurality of rubber weights respectively inserted in the parallel portions of the pipe have the detent portions adjacent to each other, and the U-shaped coupling member is inserted into the coupling hole to remove the rubber weights. Since it can be fixed, the number of components of the vibration isolator for piping and the number of assembly steps can be reduced, assembly can be done easily, and the rotation of the rubber weight can be stopped and fixed securely, and due to the deformation of the rubber weight when the pipe vibrates, It effectively absorbs vibration energy and damps vibration.

Further, the plurality of rubber weights respectively inserted in the parallel portions of the pipe have the detent portions adjacent to each other, and the metal S-hook type coupling members are provided above and below the plurality of rubber weights. Since it is inserted into the coupling hole and coupled, the rubber weight is securely fixed and rotation of the rubber weight and displacement in the axial direction are prevented.

Further, cylindrical rubber weights having eccentric through holes are respectively inserted into parallel portions of the pipes, the rubber weights are brought into contact with each other, and the outer circumferences of the plurality of rubber weights are fixedly joined by a joining member. Therefore, the dimensional change of the parallel pipe is absorbed without adding a spacer, the same number of parts are assembled, the rubber weight is securely fixed, the vibration energy of the pipe is effectively absorbed, and the vibration is damped.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a vibration damping device for piping according to the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the related art will be denoted by the same reference numerals and detailed description thereof will be omitted.

FIG. 1 is a perspective view of a vibration damping device for piping according to a first embodiment of the present invention. In FIG. 1, 13 is a rubber weight containing rubber as a main component, and 14 is the rubber weight 13
Through hole provided in the, 15 is a notch reaching the through hole,
Reference numeral 16 is a pipe, and 17 is a detent portion provided on a part of the rubber weight 13.

Reference numeral 18 is a connecting hole opposed to the detent portion 17 through the cut 15, and 19 is a U-shaped connecting member for connecting the two rubber weights 13 inserted in parallel portions of the pipe. The anti-rotation portion 17 is adjacent to the rubber weight 13 and is symmetrically arranged, and is integrated by the U-shaped coupling member 19.

As described above, with the configuration of the first embodiment of the present invention, the rubber weight 13 inserted in the parallel portion of the pipe 16 is used.
Is a rotation stop portion 17 provided on the rubber weight 13 and a small number of parts only of the U-shaped coupling member 19, and the rubber weight can be easily and surely fixed to the parallel portion of the pipe without rotating, Can absorb and damp vibration energy of piping.

Next, a second embodiment of the present invention will be described with reference to FIG. In addition, regarding the same configuration as the first embodiment,
The same reference numerals are given and detailed description is omitted.

FIG. 2 is a front view of a vibration damping device for piping according to a second embodiment of the present invention. In FIG. 2, 20 is a metal S-hook-shaped connecting member, 21 is one end of the connecting member 20, 18 is a connecting hole on the upper surface of the rubber weight 13 into which the one end 21 is inserted, and 22 is the connecting member 20. The other end, 18
Is a coupling hole in the lower surface of the rubber weight 13 into which the other end 22 is inserted, and is a configuration integrated with the coupling member 20.

As described above, according to the configuration of the second embodiment of the present invention, the metal S-hook connecting member 20 has two rubber weights 13 and one end 21 of the S-hook connecting member 20. Since the other ends 22 support the rubber weights 13 from above and from below respectively, the rubber weights are prevented from coming off due to frictional resistance between the rubber weights and can be securely fixed. As a result, a more stable vibration damping effect can be obtained over a long period of time.

A third embodiment of the present invention is shown in FIGS.
Will be explained. FIG. 3 is a perspective view of a vibration damping device for piping according to a third embodiment of the present invention. 3 to 5, 23 is a cylindrical rubber weight having an eccentric through hole 24, 25 is a notch reaching the through hole 24, 16
Is a pipe of the parallel part inserted into the through hole 24, and 26 is 2
A coupling member that fixedly couples the outer circumference of each of the rubber weights 23, which is integrated by the coupling member 26.

As described above, according to the structure of the third embodiment of the present invention, a cylindrical rubber weight 23 having an eccentric through hole 24 and a coupling member for fixedly coupling the outer circumferences of the two rubber weights 23. At 26, the vibration energy of the parallel portion of the pipe 16 is absorbed by the rubber weight 23, and when the distance between the parallel pipes is large, the two eccentric through holes 24 are provided at the position corresponding to the distance of the pipe. Since the rubber weight 23 of 2 is in contact with the outer peripheral shape of the rubber weight 23, the connecting member 26 for fixing and connecting the outer periphery can be used as it is, so that it is stable regardless of the distance of the parallel piping. Anti-vibration effect of piping can be obtained.

[0021]

As described above, according to the present invention, the rubber weight, the through hole provided in the rubber weight, the notch reaching the through hole, the parallel portion of the pipe into which the rubber weight is inserted, and the rubber A detent portion provided on the weight, and a coupling hole facing the detent portion through the notch,
Since the anti-rotation parts are in close contact with each other so as to be in close contact with each other, the vibration damping device for the pipe is configured from the U-shaped coupling member that couples the two rubber weights respectively inserted in the parallel portions of the pipe. Reduces the number of component parts and assembly man-hours of the anti-vibration device, facilitates the assembly, and fixes the rotation of the rubber weight securely to secure it, and the deformation of the rubber weight when the pipe vibrates effectively reduces the vibration energy. Can absorb and damp vibrations.

Further, a metal S-shaped connecting member and the S-shaped connecting member
A hook-shaped coupling member has one end, a coupling hole on the upper surface of the rubber weight into which the one end is inserted, the other end of the S-shaped coupling member, and a coupling hole on the lower surface of the rubber weight into which the other end is inserted. Therefore, one end and the other end of the S-hook type coupling member respectively support the rubber weights from above and below, and the mutual frictional resistance of the rubber weights prevents the rubber weights from falling off and can be securely fixed. A vibration effect is obtained.

Further, according to the present invention, a vibration damping device for a pipe is constituted by a cylindrical rubber weight having an eccentric through hole and a coupling member for fixedly coupling the outer circumferences of the plurality of rubber weights. Vibration energy of the parallel part of the pipe is absorbed by the rubber weight, and when the distance of the parallel pipe is large,
Due to the eccentric through hole, the two rubber weights are in contact with each other at the position that matches the distance of the pipe, and the outer circumferences of the two rubber weights do not change, so the connecting member that fixes the outer circumference is used as it is. Therefore, a stable vibration damping effect of the pipes can be obtained regardless of the distance between the parallel pipes.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a vibration damping device for piping according to the present invention.

FIG. 2 is a front view of a second embodiment of a vibration damping device for piping according to the present invention.

FIG. 3 is a perspective view of a third embodiment of a vibration damping device for piping according to the present invention.

FIG. 4 is a plan view of a third embodiment of the vibration damping device for piping according to the present invention.

FIG. 5 is another plan view of the third embodiment of the vibration damping device for piping according to the present invention.

FIG. 6 is a perspective view of a conventional vibration damping device for piping.

[Explanation of symbols]

 13 Rubber Weight 14 Through Hole 15 Notch 17 Detent 18 Joint Hole 19 U-Shaped Joint Member 20 S Hook-Shaped Joint Member 23 Rubber Weight 24 Through Hole 25 Notch 26 Joint Member

Claims (3)

[Claims] 1. A rubber weight having a rubber as a main component, a through hole provided in the rubber weight, a notch reaching the through hole, and a U-shape connecting the plurality of rubber weights inserted in a pipe. And a coupling hole for inserting the rotation preventing portion and the U-shaped coupling member, and a plurality of the rubber weights are integrated by using the U-shaped coupling member. An anti-vibration device for piping, which is characterized in that 2. The vibration isolator for a pipe according to claim 1, wherein the connecting member is an S-shaped connecting member made of metal. 3. A vibration damping device for a pipe, comprising: a cylindrical rubber weight having an eccentric through hole; and a coupling member for fixedly coupling the outer circumferences of the plurality of rubber weights.