JP2002295582A - Vibration isolating supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration isolating supporting device of which each member is not separated and scattered into pieces due to the vibration during the transportation by integrally forming upper/lower rubber members, and at the same time, is hardly removable, and the assembling work and the maintenance are simple. SOLUTION: A coil spring 13 is interposed between an upper side member 12 and a lower side member 11, and at the same time, a thin walled cylindrical rubber connecting member 14, which connects the upper side member and the lower side member, is integrally provided in a state that covers the coil spring. Also, four slits 15, which tolerate the diameter expansion of each rubber member, are formed so as to facilitate storage of the coil spring to the lower side member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration isolating support device for a compressor mounted on, for example, a refrigerator or an air conditioner.

[0002]

2. Description of the Related Art As is well known, a compressor mounted on a refrigerator or an air conditioner has a problem of vibration noise due to relatively large rotational vibration during operation. Various anti-vibration techniques for effectively reducing this rotational vibration have been proposed, and one of them is an anti-vibration support device described in, for example, JP-A-5-99143.

As shown in FIG. 13, a vibration isolating support device 1 is provided between a support plate 2 and an upper support plate 2 for supporting a compressor, and a support column 4 fixed to the lower support plate 2. And a substantially disc-shaped lower rubber member 5 disposed on the upper surface of the lower support plate 2 and a substantially cylindrical upper rubber member 6 fitted to the upper support plate 3. And a coil spring 7 interposed between the rubber members 5 and 6.

The lower rubber member 5 has a plurality of projections 5a integrally formed on the lower surface thereof, and a cylindrical support portion 5b integrally formed at a position above the hole edge of the insertion hole of the column 4 formed at the center. Is formed.

On the other hand, the upper rubber member 6 has an annular groove 6a into which the fitting hole of the upper support plate 3 is fitted at a substantially central position, and an insertion hole of the support column 4 formed at the center. A cylindrical support portion 6b is integrally formed at a position below the hole edge.

A lower end 7a of the coil spring 7 is supported by being engaged with an outer periphery of a support 5b of the lower rubber member 5, and an upper end 7b is supported by a support 6b of the upper rubber member 6. Are supported by being engaged with the outer periphery of the.

According to the vibration isolating support device 1, the rotational vibration from the compressor is basically absorbed by the spring force of the coil spring 7 and the rubber elasticity of the upper and lower rubber members 5 and 6. The spring constant is suppressed to a small value by the projection 5a on the lower surface of the rubber member 5, so that a sufficient vibration damping effect can be obtained.

[0008]

However, in the above-mentioned conventional anti-vibration support device 1, the lower rubber member 5 and the upper rubber member 6 are formed separately, and between the two rubber members 5 and 6. Since the upper and lower end portions 7a and 7b of the coil spring 7 are simply inserted into the support portions 5b and 6b and locked, the coil spring 7 is assembled to the upper and lower rubber members 5 and 6 after manufacturing. If the transportation or transportation is performed in this state, there is a possibility that these members 5, 6, and 7 may be separated from each other due to vibration during transportation.

[0009] Even when these members 5, 6, 7 are assembled on site, the three parts are combined.
They are easily separated from each other, and the assembling work is complicated, and the maintenance management is also complicated.

In addition, the lower rubber member 5 and the upper rubber member 6
Are molded separately from each other, so that such molding workability is also poor, resulting in a decrease in work efficiency.

[0011]

SUMMARY OF THE INVENTION The present invention has been devised in view of the technical problem of the conventional vibration isolating support device. In a vibration isolating support device having a coil spring interposed therebetween, a connecting member for connecting the upper member and the lower member is integrally provided.

Therefore, according to the present invention, since the upper and lower members are connected by the connecting member, not only the two members but also the coil spring interposed between the two members is integrally formed on the two members. Since they can be assembled, they are not inadvertently separated by, for example, vibration during transportation.

Also, when assembling the coil spring to both members, since the two members are previously connected by the connecting member, it is only necessary to provide the coil spring inside or outside the connecting member. The properties are also improved.

The invention according to claim 2 is characterized in that the connecting member is formed in a cylindrical shape or a cylindrical bellows shape which covers the outer periphery of the coil spring.

According to a third aspect of the present invention, a slit is formed in at least one of the upper member and the lower member to allow a diameter of the member to be increased.

According to a fourth aspect of the present invention, the slit is formed so as to extend to a substantially central position in the axial direction of the connecting member.

The invention according to claim 5 is characterized in that the connecting member is formed in a belt shape elongated in the axial direction.

The invention according to claim 6 is characterized in that the connecting member is arranged inside the coil spring.

The invention according to claim 7 is characterized in that a notch portion is formed along an axial direction on an outer peripheral surface of at least one of the upper member and the lower member.

The invention according to claim 8 is characterized in that the connecting member is formed of a rubber material or a synthetic resin material, and is integrally formed with the upper member and the lower member.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vibration isolating support device according to an embodiment of the present invention. Each of the embodiments is also applied to a compressor such as a refrigerator or an air conditioner as in the conventional example.

FIG. 1 and FIG. 2 show a first embodiment of a vibration isolating support device according to the present invention, which is interposed between two upper and lower support plates for supporting a compressor (not shown), and A substantially annular rubber lower member 11 is slidably supported by a support fixed to the plate, and is disposed on the upper surface of the lower support plate, and has a substantially cylindrical shape fitted to the upper support plate. And an upper member 12 made of rubber, a coil spring 13 interposed between the two members 11, 12, and a connecting member 14 for connecting the two members 11, 12.

The lower member 11 is, as shown in FIG.
The height is set relatively high, and an insertion hole 11a through which the support is inserted is formed vertically in the center. Further, four slits 15 extending radially around the insertion hole 11a are formed inside.
As shown in FIG. 2, the slits 15 are formed at regular intervals at approximately 90 ° in the circumferential direction, and extend vertically from the flat upper surface 11b to the lower surface 11c in parallel with the insertion holes 11a. Is formed in the through hole. The insertion hole 1
A conical tapered surface 11d is formed in the lower part of the hole edge of 1a in order to ensure good insertion into the column.

The upper member 12 has a large diameter portion 12 on the lower side.
a and a small-diameter portion 12b provided at the center of the upper surface of the large-diameter portion 12a, and an insertion hole 12c through which a support is inserted substantially at the center.
Are formed, and the large diameter portion 12a and the small diameter portion 1 are formed.
An annular groove 12d in which the fitting hole of the upper support plate is fitted is formed in the outer peripheral portion between the annular groove 12d and the annular groove 12d. Also, the large diameter portion
a, the upper end 13 of the coil spring 13
The support groove 16 is formed in a substantially annular shape for engaging and supporting a. The conical tapered surface 1 is formed on the outer peripheral edge of the upper end of the small diameter portion 12b so that the fitting hole of the upper support plate can be easily inserted.
2e are formed.

The coil spring 13 has an upper end 13
a is engaged and supported on the bottom surface of the support groove 16,
The lower end 13b is elastically supported by the flat upper surface 11b of the lower member 11.

The connecting member 14 is formed in the shape of a cylindrical bellows of thin rubber and has upper and lower ends 14a, 1a.
4b is formed continuously and integrally on each outer peripheral surface of the lower member 11 and the upper member 12, and is disposed outside the coil spring 13 so as to cover the entire coil spring 13 with a gap. The connecting member 14 is formed at the same time as the injection molding of the upper and lower members 11 and 12.

Therefore, according to this embodiment, the coil spring 13 is assembled between the lower member 11 and the upper member 12 which are formed integrally with the connecting member 14 in advance through the slits 15. The four parts of the vertically divided lower member 11 are pushed outward from the insertion hole 11a side, and the coil spring 13
From the upper end portion 13a side into the inside surrounded by the connecting member 14. Then, when the expansion of each part of the lower member 11 is released when all of the coil spring 13 is housed inside, the upper and lower ends 13a, 1a of the coil spring 13 are released.
3b is securely held and held inside while elastically contacting the support groove 16 and the flat upper surface 11b.

As described above, since the two members 11, 12 are integrally connected by the connecting member 14, the members 11, 12, 13 are transported even during the transportation of the anti-vibration support device.
There is no risk of inadvertent separation.

In addition, since the coil spring 13 is simply assembled by simply expanding the respective parts of the lower member 11 and housing it inside, the assembling work is extremely easy.
Such work efficiency can be improved. Furthermore, three members 1
Since the units 1, 12, and 14 are integrated, the maintenance management thereof is also facilitated.

Further, the lower member 11 and the upper member 12 and the connecting member 14 can be integrally formed instead of separately forming the lower member and the upper member as in the prior art. , 14 are also improved.

Further, since the outer periphery of the coil spring 13 is covered with the connecting member 14, rust generation is suppressed and durability can be improved.

Further, since the connecting member 14 is formed in a bellows shape, when the coil spring 13 is compressed, the connecting member 14 is regularly bent and deformed in a folded manner.
Since appearance of irregular wrinkles is prevented, the appearance quality is improved.

FIGS. 3 and 4 show a second embodiment of the present invention. In this embodiment, the connecting member 14 is formed in a simple cylindrical shape instead of a bellows shape.

Therefore, although irregular wrinkles are likely to occur during compression deformation, since the shape is simple, the production and molding work of a molding die become easy, which is advantageous in terms of cost.

FIGS. 5 and 6 show a third embodiment of the present invention. The basic structure of each member 11, 12, 14 is the same as that of the first embodiment, but the structure of the slit 15 is changed. It is.

That is, the slit 15 is formed as a single piece, cut in the radial direction from the insertion hole 11 a of the lower member 11, and further extends therefrom to a position near the center of the connecting member 14 in the axial direction. ing.

Therefore, since the thin connecting member 14 can be easily pushed and opened to both the left and right sides, the operation of housing the coil spring 13 inside is further improved. Moreover, since only one slit 15 is formed, the forming operation is also facilitated.

7 and 8 show a fourth embodiment, in which the structure of the slit 15 is similarly changed. That is, one slit 15 is formed in the insertion hole 12 of the upper member 12.
The connection member 14 is cut in the radial direction, and further extends from here to almost the center of the connecting member 14 in the axial direction.

Therefore, in this embodiment, as in the case of the third embodiment, there can be obtained an operational effect such that the operation of housing the coil spring 13 is facilitated.

FIGS. 9 and 10 show a fifth embodiment.
This is a modification of the structure of the connecting member 14.

That is, the connecting member 14 is formed not by a cylindrical shape but by two elongated band-like connecting portions 14a and 14b.
The upper and lower members 11, 12 are provided at diametrical positions, each width length W is set substantially to the diameter length of each of the insertion holes 11a, 12c, and the thickness is the cylindrical coupling of each of the above embodiments. The thickness is set to be substantially the same as the thickness of the member 14.

Therefore, according to this embodiment, the same operation and effect as those of the above-described embodiments can be obtained by the connecting portions 14a and 14b. In particular, the width W and the thickness can be arbitrarily changed. By the coil spring 1
3 can be changed. For this reason, a stable and sufficient anti-vibration effect according to the size and shape can be obtained.

FIGS. 11 and 12 show a sixth embodiment, in which the position of the connecting member 14 is changed to the inside of the coil spring 13.

That is, the connecting member 14 is formed in a substantially cylindrical bellows shape, and upper and lower end portions 14a and 14b are formed on the inner peripheral side of the cylindrical lower member 11 and the lower end middle diameter of the large diameter portion 12a of the upper member 12. It is integrally connected to the inner peripheral side of the part.
The coil spring 13 is disposed on the outer peripheral side of the connecting member 14 in a spiral bellows groove 14 c in a fitted state, and the upper end 13 a is elastically held by the lower surface of the large diameter portion 12 a of the upper member 12, The lower end 13 b is the upper surface 11 of the lower member 11.
b.

On the outer peripheral surface of the lower member 11, notches 17a and 17b having a width across two sides are formed, and the coil springs 13 are connected to the lower member 11 and the connecting members 14 by the notches 17a and 17b. It is easy to insert into the outer periphery.

Therefore, according to this embodiment, by arranging the connecting member 14 inside the coil spring 13, the outer diameter of the whole anti-vibration support device can be reduced, and the compactness can be achieved.

Further, since the connecting member 14 is formed in a cylindrical bellows shape, and the coil spring 13 is fitted thereto, it does not affect the vibration absorbing action by the spring force of the coil spring 13, and Connecting member 14
A vibration absorbing effect by itself is also obtained.

The present invention is not limited to the configuration of each of the above embodiments, and its structure can be arbitrarily changed according to the size of the application object and the vibration characteristics. Also,
The mounting of the vibration-proof support can be applied not only to a compressor such as a refrigerator but also to other vibration generators. Further, each of the upper and lower members 11, 12 and the connecting member 14 can be formed of a synthetic resin material instead of a rubber material.

[0049]

As is apparent from the above description, claim 1
According to the invention described in the above, since the upper and lower members are integrally connected by the connecting member, not only the upper and lower members but also the coil spring interposed between the upper and lower members can be vertically connected. It can be assembled integrally with the member. As a result, there is no inadvertent separation due to, for example, vibration during transportation.

Further, since the upper and lower members and the connecting member are integrated, maintenance and management thereof are also facilitated.

Also, when assembling the coil springs to the upper and lower members, since the upper and lower members are previously connected by the connecting members, it is only necessary to provide the coil springs inside or outside the connecting members. Workability is also improved.

Further, the lower member, the upper member, and the connecting member can be integrally formed instead of separately forming the lower member and the upper member as in the conventional vibration isolating support device.
The molding operation efficiency of each of the members is also improved.

According to the second aspect of the present invention, since the coil spring has a shape in which the outer periphery is covered with the connecting member, rust generation is suppressed, and durability can be improved.

When the connecting member is formed in a bellows shape,
When the coil spring is compressed, the connecting member is regularly bent and deformed in a fold-like manner, thereby preventing occurrence of irregular wrinkles.

According to the third aspect of the present invention, since the lower member and the upper member can be easily pushed open by the slit, the operation of housing the coil spring in the connecting member becomes easy.

According to the fourth aspect of the present invention, since the slit is formed so as to extend to a substantially central position in the axial direction of the connecting member, the operation of pushing and opening the upper and lower members becomes easier, and the operation of storing the coil spring is facilitated. Efficiency can be further improved.

According to the fifth aspect of the present invention, since the connecting member is formed in a belt shape elongated in the axial direction, the entire length including the coil spring can be changed by arbitrarily changing the width and the thickness of the connecting member. Can be changed. As a result, a stable and sufficient anti-vibration effect according to the size and shape can be obtained.

According to the sixth aspect of the present invention, since the connecting member is disposed inside the coil spring, the outer diameter of the whole vibration isolating support device can be reduced, and compactness can be achieved.

According to the seventh aspect of the present invention, the coil spring can be easily mounted on the outer periphery of the connecting member by forming the cutout along the axial direction.

According to the invention described in claim 8, the connecting member is formed of a rubber material or a synthetic resin material,
Since the upper and lower members are integrally formed, each member can be molded simultaneously and by the same molding machine, so that the efficiency of the molding operation and the cost can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the anti-vibration support device according to a first embodiment of the present invention, taken along line AA of FIG. 2;

FIG. 2 is a bottom view of the anti-vibration support device of the first embodiment.

FIG. 3 is a cross-sectional view of the anti-vibration support device according to a second embodiment of the present invention, taken along line BB of FIG. 4;

FIG. 4 is a bottom view of the anti-vibration support device.

FIG. 5 is a front view showing an anti-vibration support device according to a third embodiment.

FIG. 6 is a bottom view of the anti-vibration support device according to the third embodiment.

FIG. 7 is a front view showing an anti-vibration support device according to a fourth embodiment.

FIG. 8 is a plan view of an anti-vibration support device according to a fourth embodiment.

FIG. 9 is a front view of an anti-vibration support device according to a fifth embodiment.

FIG. 10 is a bottom view of the anti-vibration support device according to the fifth embodiment.

FIG. 11 is a cross-sectional view taken along the line CC of FIG. 12, illustrating the vibration isolating support device according to the sixth embodiment.

FIG. 12 is a bottom view of the vibration isolating support device according to the sixth embodiment.

FIG. 13 is a longitudinal sectional view showing a conventional anti-vibration support device.

[Explanation of symbols]

 11 lower member 12 upper member 13 coil spring 14 connecting member 15 slit

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Daiichiro Hirunekawa 330F, Naganuma-cho, Inage-ku, Chiba-shi, Chiba F-term (reference) 3K048 AA01 BA06 BC02 DA01 EA09 3J059 AD02 BA01 BA60 BB09 BC01 BC04 BC06 BD01 GA41

Claims (8)

[Claims] 1. An anti-vibration support device having a coil spring interposed between an upper member and a lower member, wherein a connecting member for connecting the upper member and the lower member is provided integrally. Characteristic anti-vibration support device. 2. The anti-vibration support device according to claim 1, wherein the connecting member is formed in a cylindrical shape or a cylindrical bellows shape covering the outer periphery of the coil spring. 3. The anti-vibration support device according to claim 2, wherein a slit is formed in at least one of the upper member and the lower member to allow the upper and lower members to have a larger diameter. 4. The apparatus according to claim 3, wherein the slit is formed to extend to a substantially central position in the axial direction of the connecting member.
6. The vibration isolating support device according to item 5. 5. The anti-vibration support device according to claim 1, wherein the connecting member is formed in a belt shape elongated in the axial direction. 6. The anti-vibration support device according to claim 1, wherein the connecting member is disposed inside the coil spring. 7. The anti-vibration support device according to claim 6, wherein a notch portion is formed along an axial direction on an outer peripheral surface of at least one of the upper member and the lower member. 8. The protection device according to claim 1, wherein the connecting member is formed of a rubber material or a synthetic resin material, and is integrally formed with the upper member and the lower member. Vibration support device.