JP2012026532A - Elastic support tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elastic support tool which is interposed between two objects to attenuate vibration and shock transmitted between both objects, excellent in ability to attenuate low-frequency vibration and excellent also in workability at installing between the two objects.SOLUTION: The elastic support tool includes a first fixing part 11 fixed to one object, second fixing parts 12 fixed to the other object, and elastomer parts 13 interposed between the first fixing part 11 and the second fixing parts 12. The first fixing part 11 has first mounting holes 21 formed therein, and each first mounting hole 21 has a plurality of projections 23 formed in the inner circumference thereof. Each elastomer part 13 has grooves 25 formed in the outer circumference thereof, and the plurality of projections 23 fit into the grooves 25. Accordingly, the elastomer part 13 is supported by the first fixing part 11 in the state that a clearance 27 exists between the projections 23 adjacent to each other in the groove 25.

Description

  The present invention relates to an elastic support device that is interposed between two objects and elastically supports one of the objects with respect to the other object, thereby attenuating vibration and impact transmitted between the two objects.

  In recent years, home appliances and in-vehicle products have various precision devices (for example, hard disk devices) built therein. In a product incorporating such a precision instrument, if the structure is such that external vibrations and shocks are easily transmitted to the precision instrument, it may cause a malfunction or failure of the precision instrument.

  In addition, among the precision instruments as described above, the precision instrument itself may generate vibration in accordance with the operation of the precision instrument. In a product incorporating a precision device as such a vibration source, when vibration is transmitted from the precision device to the housing side of the product, chatter noise may be generated from the housing. Further, the vibration transmitted to the casing may be further transmitted to an object existing around the casing, and noise may be generated.

  Therefore, conventionally, a vibration isolating member is interposed between the housing and the precision device so that the housing and the precision device are not in direct contact with each other. (For example, refer to Patent Documents 1 and 2.)

Registered Utility Model No. 3032175 Japanese Patent No. 3432100

  By the way, when both of the vibration isolating members described in Patent Documents 1 and 2 are interposed between two objects, the vibration isolating member is disposed inside the first mounting hole formed in one object. Installed. Then, the other object is attached to the second attachment hole formed at the center of the vibration isolating member, whereby the other object is elastically supported with respect to the one object.

  However, in the case of the vibration isolating member described in Patent Document 1, the inner periphery of the first mounting hole formed in one object is cylindrical, and the vibration isolating member is fitted on the cylindrical inner peripheral side. It has a structure. Therefore, when the direction of vibration or impact acting between two objects coincides with the through direction of the first mounting hole, the mounting position of the vibration isolating member with respect to the first mounting hole is the through direction of the first mounting hole. It becomes easy to shift the position relatively. Therefore, when an excessive displacement occurs, the two objects may come into direct contact with each other, and the function of the vibration isolation member may be impaired.

  Further, in the case of the vibration isolating member described in Patent Document 2, a groove is formed on the outer periphery of the vibration isolating member, and the inner periphery of the first mounting hole formed in one object is fitted in the groove on the outer periphery of the vibration isolating member. Therefore, the above-described positional shift can be prevented.

  However, if the inner circumference of the first mounting hole fits into the groove on the outer periphery of the vibration isolating member over the entire circumference, the inner circumference of the first mounting hole fitted over the entire circumference becomes a factor that hinders the elastic deformation of the vibration isolating member. Thus, the spring constant of the vibration isolating member tends to increase. For this reason, when the spring constant of the vibration isolating member becomes excessively large, there is a problem that the ability to attenuate low-frequency vibration is reduced and the performance as the vibration isolating member is weakened.

Furthermore, the above-mentioned vibration isolating member is relatively easily deformed and has a problem in that it is inferior in workability because it is more likely to be unexpectedly deformed during mounting work than a hard part.
The present invention has been made in order to solve the above-described problems, and the object thereof is to attenuate vibrations and shocks that are interposed between two objects and transmitted between the two objects, and that low-frequency vibrations can be obtained. Another object of the present invention is to provide an elastic support that is excellent in the ability to damp and that is excellent in workability when interposing between two objects.

Hereinafter, the configuration employed in the present invention will be described.
The elastic support tool according to claim 1 is interposed between the first object and the second object, and elastically supports the second object with respect to the first object. An elastic support for attenuating vibration and shock transmitted between both objects, one of which is fixed to the first object and the other is fixed to the second object. One fixed part and a second fixed part are interposed between the first fixed part and the second fixed part, and vibration or vibration is generated from any one of the first fixed part and the second fixed part. An elastomer portion that suppresses the vibration and impact from being transmitted to the other by attenuating the vibration and impact with elastic deformation when the impact is transmitted; A mounting hole is formed, and a second mounting hole is formed in the elastomer part. The elastomer part is supported by the first fixing part by being fitted into the first mounting hole, and the second fixing part is elastically supported by the elastomer part by being fitted into the second mounting hole. In addition, a plurality of protrusions are formed on the inner periphery of the first mounting hole, and a groove is formed on the outer periphery of the elastomer portion. The plurality of protrusions are the grooves. The elastomer part is supported by the first fixing part in a state where a gap is formed between adjacent protrusions in the groove.

  According to the elastic support device thus configured, the first fixing portion is fixed to one of the first object and the second object, and the second fixing portion is fixed to the other. By doing so, an elastic support tool is interposed between the two objects, and the second object can be elastically supported with respect to the first object.

  Therefore, the work of interposing the elastic support between the two objects rather than the structure in which the member corresponding to the elastomer part is directly attached to the mounting hole provided in one of the two objects. It can be easily implemented.

  Further, in this elastic support tool, a plurality of protrusions are formed on the inner periphery of the first mounting hole, and the plurality of protrusions are fitted into the grooves of the elastomer portion, thereby forming gaps between adjacent protrusions in the grooves. In this state, the elastomer part is supported by the first fixing part.

  Therefore, in the portion with the protrusion, the elastomer portion can be prevented from being displaced in the penetrating direction of the first mounting hole, while in the portion without the protrusion, the elastomer portion is allowed to elastically deform in the direction in which the groove is crushed, The flexibility of the elastomer part can be increased. Therefore, the spring constant of the elastomer part can be reduced, and thereby the damping ability of low frequency vibration can be improved.

  The elastic support device according to claim 2 is the elastic support device according to claim 1, wherein the second fixing portion includes a cylindrical portion inserted into the second attachment hole and one end of the cylindrical portion. Of the one object to which the first fixing part is fixed and the other object to which the second fixing part is fixed, the other object and the The flange portion is positioned so that the elastomer portion is sandwiched therebetween, and a screw is inserted into the cylindrical portion from the flange portion side so that the screw and the other object are screwed together. The two fixing parts are fixed to the other object.

According to the elastic support device configured as described above, the second fixing portion can be fixed to the other object with a screw, so that the second fixing portion can be easily attached to the other object.
The elastic support device according to claim 3 is the elastic support device according to claim 1 or 2, wherein a plurality of the second fixing portions and the elastomer portion are provided for one of the first fixing portions. It is characterized by.

  According to the elastic support device configured as described above, since one first fixing portion is shared by the plurality of second fixing portions and the elastomer portion, one second fixing portion is provided for one first fixing portion. Compared to the case where only the part and the elastomer part are provided, the number of parts can be reduced. Further, among the one object to which the first fixing part is fixed and the other object to which the second fixing part is fixed, even when fixing a plurality of second fixing parts to the other member, one member For this, it is only necessary to fix one first fixing part, so that it is easier to fix the first fixing part to one member than to fix a plurality of first fixing parts to one member. Become.

  The elastic support device according to claim 4 is the elastic support device according to claim 3, wherein the plurality of second fixing portions and the elastomer portion provided in one of the first fixing portions are spaced apart from each other. It is configured to be changeable.

  According to the elastic support device configured as described above, since the interval between the plurality of second fixing portions and the elastomer portion provided in one first fixing portion can be changed, the first fixing portion is Of the one object to be fixed and the other object to which the second fixing part is fixed, the fixing position of the other object and the second fixing part is set to a desired position according to the size and form of the other object. It can be adjusted and optimized.

The elastic support device according to claim 5 is the elastic support device according to any one of claims 1 to 4, wherein the first fixing portion is formed of a molded product of a plastic material. .
According to the elastic support device thus configured, since the first fixing portion is formed of a molded product of a plastic material, the protrusion formed on the inner periphery of the first mounting hole is compared with a pressed sheet metal part or the like. Can be formed relatively easily. In addition, compared to sheet metal parts, etc., the plate thickness of the first fixing portion (thickness in the through direction of the first mounting hole) can be easily set to a desired thickness. It can be formed easily.

It is a figure which shows the use condition of the elastic support tool of 1st embodiment, (a) is a perspective view, (b) is a front view, (c) is a left view. It is a figure which shows the elastic support tool of 1st embodiment, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a left view, (e) is a right view. , (F) is a rear view. It is a figure which shows the elastic support tool of 1st embodiment, (a) is sectional drawing which expands and shows the cut surface in the AA line shown in FIG.2 (b), (b) is the 1st attachment hole vicinity. The partial front view which expands and shows, (c) is a perspective view which shows a 2nd fixing | fixed part. (A) is a front view of the 2nd fixing | fixed part with which the elastic support tool of 2nd embodiment is equipped, (b) is a front view of the 2nd fixing | fixed part with which the elastic support tool of 3rd embodiment is equipped, (c) is 4th. The front view of the 2nd fixing | fixed part with which the elastic support tool of embodiment is equipped, (d) is an enlarged view of the B section shown in FIG.4 (c), (e) is the 2nd fixation with which the elastic support tool of 5th embodiment is equipped. (F) is an enlarged view of part C shown in FIG. 4 (e), (g) is a front view of a second fixing part provided in the elastic support of the sixth embodiment, and (h) is FIG. The enlarged view of the D section shown to (g), (i) is the front view of the 2nd fixing | fixed part with which the elastic support tool of 7th embodiment is equipped, (j) is the enlarged view of the E section shown to FIG. 4 (i). It is a figure which shows the elastic support tool of 8th embodiment, (a) is a top view, (b) is a front view, (c) is the front of the state which shortened the length of the left-right direction rather than FIG.5 (b). FIG. 4D is a perspective view showing a use state. It is a figure which shows the elastic support tool of 9th embodiment, (a) is a top view, (b) is a front view, (c) is an enlarged view of the F section shown to Fig.6 (a), (d) is a figure. The enlarged view of the G section shown to 6 (b), (e) is a perspective view which shows a use condition. It is a figure which shows the use condition of the elastic support tool of 10th embodiment, (a) is the perspective view seen from diagonally upward, (b) is the perspective view seen from diagonally downward. It is a figure which shows the elastic support tool of 10th embodiment, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a left view, (e) is a right view. , (F) is a rear view. It is a figure which shows the use condition of the elastic support tool of 11th embodiment, (a) is the perspective view seen from diagonally upward, (b) is the perspective view seen from diagonally downward. It is a figure which shows the elastic support tool of 11th embodiment, (a) is a top view, (b) is a front view, (c) is a left view. It is a figure which shows the use condition of the elastic support tool of 12th embodiment, (a) is the perspective view seen from diagonally upward, (b) is the perspective view seen from diagonally downward. It is a figure which shows the elastic support tool of 12th embodiment, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a left view. It is a figure which shows the use condition of the elastic support tool of 13th embodiment, (a) is the perspective view seen from diagonally upward, (b) is the perspective view seen from diagonally downward. It is a figure which shows the elastic support tool of 13th embodiment, (a) is a top view, (b) is a front view, (c) is a right view, (d) is a bottom view, (e) is a rear view. . (A)-(e) is a figure which shows the 1st fixing | fixed part with which the elastic support tool of 13th embodiment is provided, (a) is the perspective view seen from diagonally upward, (b) was seen from diagonally downward. The perspective view, (c) is a plan view, (d) is a bottom view, (e) is a longitudinal sectional view as seen from the right side, and (f) is the right side of the elastic support of the thirteenth embodiment. FIG.

Next, embodiments of the present invention will be described with some specific examples.
(1) First Embodiment An elastic support 1 shown in FIGS. 1 (a) to 1 (c) and FIGS. 2 (a) to (f) is built in a chassis 3 of a hard disk recorder and the hard disk recorder. It is a member interposed between the hard disk device 5 (hereinafter referred to as HDD 5). In the case of the first embodiment, two elastic supports 1 and 1 are interposed between the chassis 3 and the HDD 5 (see FIG. 1C).

  Further, in the case of the first embodiment, one elastic support 1 includes one first fixing part 11, two second fixing parts 12, and two elastomer parts 13. Among these, the 1st fixing | fixed part 11 and the 2nd fixing | fixed part 12 are molded articles which consist of a comparatively hard plastic material (for example, ABS resin, polyamide resin, various engineering plastics, etc.). The elastomer portion 13 is a molded product made of an elastomer material (for example, a thermoplastic elastomer or rubber) having vibration damping properties and buffering properties.

  Each of the first fixing portions 11 is fixed to the chassis 3 with screws 15, and the second fixing portion 12 is fixed to the HDD 5 with screws 16. Further, as shown in FIGS. 3A to 3C, the first fixing portion 11 is formed with a first mounting hole 21, and the elastomer portion 13 is fitted into the first mounting hole 21. It is supported by the first fixing part 11.

  More specifically, three protrusions 23 are formed on the inner periphery of the first mounting hole 21, and a groove 25 (see FIG. 3A) is formed on the outer periphery of the elastomer portion 13. Is fitted into the groove 25, whereby the elastomer portion 13 is supported by the first fixing portion 11. A gap 27 (see FIG. 3A) is formed between adjacent protrusions 23 in the groove 25.

  On the other hand, a second mounting hole 29 is formed in the elastomer portion 13, and the second fixing portion 12 is elastically supported by the elastomer portion 13 by being fitted into the second mounting hole 29. . The second fixing portion 12 has a structure in which a cylindrical portion 12a and a flange portion 12b formed at one end of the cylindrical portion 12a are integrally formed of a plastic material. The cylindrical part 12a is fitted.

  When the second fixing portion 12 is fixed to the HDD 5, the HDD 5 and the flange portion 12b are positioned so as to sandwich the elastomer portion 13 therebetween, and the screw 16 is attached to the cylindrical portion 12a from the flange portion 12b side. Insert. Then, the second fixing portion 12 is fixed to the HDD 5 by screwing the screw 16 and the HDD 5 together.

  According to the elastic support device 1 as described above, the HDD 5 can be elastically supported with respect to the chassis 3 at a position where the chassis 3 and the HDD 5 are not in direct contact, and vibrations transmitted between the chassis 3 and the HDD 5 Impact can be attenuated.

  In addition, when the elastic support 1 is interposed between the chassis 3 and the HDD 5, it is not necessary to directly attach a deformable part such as the elastomer portion 13 to the chassis 3 or the HDD 5. The operation of interposing the elastic support 1 can be easily performed.

  Further, in the elastic support 1, a plurality of protrusions 23 provided on the first fixing portion 11 are fitted into the grooves 25 of the elastomer portion 13, and a gap 27 is formed between the adjacent protrusions 23 in the groove 25. Therefore, the elastomer part 13 is easily elastically deformed in the direction in which the groove 25 is crushed at the part where the protrusion 23 is not provided.

  Accordingly, the flexibility of the elastomer portion 13 can be increased, and the spring constant of the elastomer portion 13 can be reduced. Therefore, vibration at a lower frequency can be achieved than when the inner peripheral surface having no protrusion is fitted in the groove 25. The ability to attenuate can be improved.

(2) Second Embodiment Next, a second embodiment will be described. However, since the second and subsequent embodiments have many parts that are not different from the previous embodiments, the following explanation will focus on the parts that are different, and will explain the parts that are not different. Is omitted. In addition, the same reference numerals as those in the above-described embodiment are given to portions having functionally equivalent functions.

  In the second embodiment, as shown in FIG. 4A, six protrusions 23 are formed on the inner periphery of one first mounting hole 21. That is, the number of protrusions 23 described in the first embodiment is changed from three to six. Thus, the number of protrusions 23 can be arbitrarily changed.

  However, when the shapes of the protrusions 23 are the same, the void 27 formed in the groove 25 decreases as the number of the protrusions 23 increases, and the elastomer portion 13 tends to be somewhat difficult to deform. Therefore, in consideration of such a tendency, it is desirable to determine the number of protrusions 23 within a range in which the flexibility of the elastomer portion 13 is not excessively impaired.

(3) Third Embodiment Next, a third embodiment will be described.
In the third embodiment, as shown in FIG. 4B, six protrusions 23 are formed on the inner periphery of one first mounting hole 21, and the intervals between adjacent protrusions 23 are evenly spaced. A protrusion 23 is formed at a position where it does not become necessary. Thus, if the space | interval of the processus | protrusion 23 is changed, a certain amount of directionality can be provided to the ease of deformation | transformation of the elastomer part 13. FIG.

(4) Fourth Embodiment Next, a fourth embodiment will be described.
In the fourth embodiment, as shown in FIGS. 4C and 4D, the shape of the protrusion 23 is convex. Even the projection 23 having such a shape has the same functions and effects as those of the first embodiment.

(5) Fifth Embodiment Next, a fifth embodiment will be described.
In the fifth embodiment, as shown in FIG. 4E and FIG. 4F, the shape of the protrusion 23 is concave. Even the projection 23 having such a shape has the same functions and effects as those of the first embodiment.

(6) Sixth Embodiment Next, a sixth embodiment will be described.
In the sixth embodiment, as shown in FIG. 4G and FIG. 4H, the shape of the protrusion 23 is substantially semicircular. Even the projection 23 having such a shape has the same functions and effects as those of the first embodiment.

(7) Seventh Embodiment Next, a seventh embodiment will be described.
In the seventh embodiment, as shown in FIG. 4I and FIG. 4J, the shape of the protrusion 23 is substantially triangular. Even the projection 23 having such a shape has the same functions and effects as those of the first embodiment.

(8) Eighth Embodiment Next, an eighth embodiment will be described.
In the elastic support 30 of the eighth embodiment, as shown in FIGS. 5A to 5D, the first fixing portion 11 is divided into two parts 11a and 11b, and one part 11a is divided into one part 11a. Has five convex portions 31a, and the other component 11b has five through holes 31b. The five convex portions 31a can be fitted into the five through holes 31b, whereby the two parts 11a and 11b are connected.

  Moreover, when connecting these two parts 11a and 11b, by shifting the positional relationship between the convex portion 31a and the through hole 31b to a desired position, how many convex portions 31a are fitted into the through hole 31b. Can be adjusted arbitrarily, whereby the overall length of the first fixing portion 11 can be adjusted.

  Accordingly, if such a length adjusting mechanism is provided, the distance between the two sets of the second fixing portion 12 and the elastomer portion 13 can be changed. Therefore, depending on the size and form of the HDD 5, the HDD 5 And the second fixing part 12 can be adjusted to a desired position for optimization.

(9) Ninth Embodiment Next, a ninth embodiment will be described.
As shown in FIGS. 6A to 6E, the elastic support 32 of the ninth embodiment includes a snap portion 33a that engages and disengages the convex portion 31a exemplified in the eighth embodiment with elastic deformation. Is an alternative. That is, in 9th embodiment, the 1st fixing | fixed part 11 is divided | segmented into two components 11a and 11b, the five snap parts 33a are formed in one component 11a, and five penetrations are carried out in the other component 11b. A hole 33b is formed. The five snap portions 33a can be fitted into the five through-holes 33b, whereby the two parts 11a and 11b are connected.

  Even when configured in this way, when the two parts 11a and 11b are connected, the number of the snap portions 33a can be penetrated by shifting the positional relationship between the snap portion 33a and the through hole 33b to a desired position. It can adjust arbitrarily whether it fits in the hole 33b, and, thereby, the full length of the 1st fixing | fixed part 11 can be adjusted.

  Accordingly, if such a length adjusting mechanism is provided, the distance between the two sets of the second fixing portion 12 and the elastomer portion 13 can be changed. Therefore, depending on the size and form of the HDD 5, the HDD 5 And the second fixing part 12 can be adjusted to a desired position for optimization.

(10) Tenth Embodiment Next, a tenth embodiment will be described.
As shown in FIG. 7A to FIG. 7B and FIG. 8A to FIG. Is changed by 90 degrees to fix the first fixing part 11 to the HDD 5 side and the second fixing part 12 to the chassis 3 side.

  That is, the first fixing portion 11 fitted on the outer peripheral side of the elastomer portion 13 and the second fixing portion 12 fitted on the inner peripheral side of the elastomer portion 13 are arranged on the first fixing portion 11 side as in the first embodiment. You may fix to the chassis 3, and you may fix the 2nd fixing | fixed part 12 side to the chassis 3 like 10th embodiment.

  If the configuration as in the tenth embodiment is employed, the height dimension of the elastic support 34 can be suppressed. Therefore, it is desirable to adopt the configuration as in the tenth embodiment in a low profile device with a small space in the height direction.

  On the other hand, when the configuration as in the first embodiment is adopted, since the horizontal dimension (width dimension) is suppressed as compared with the tenth embodiment, there is a space in the height direction, but in the lateral direction. In a device that does not have space, it is desirable to adopt the configuration as in the first embodiment.

  Further, in the tenth embodiment, since the first fixing portion 11 is a plastic molded product, the plate thickness of the portion fitted on the outer peripheral side of the elastomer portion 13 can be designed to an arbitrary thickness. Therefore, by changing the plate thickness as appropriate, the size of the gap formed between the elastomer portion 13 and the rigidity of the portion fitted on the outer peripheral side of the elastomer portion 13 can be changed. The buffer performance can be adjusted so that the desired performance is exhibited.

(11) Eleventh Embodiment Next, an eleventh embodiment will be described.
The elastic support 36 of the eleventh embodiment includes two elastic members shown in the first embodiment as shown in FIGS. 9A to 9B and FIGS. 10A to 10C. The support 1 is connected and integrated. That is, the elastic support 36 of the eleventh embodiment includes the frame-shaped first fixing part 11, and the four sets of the second fixing part 12 and the elastomer part 13 are arranged at the four corners of the first fixing part 11. Yes.

With the elastic support 36 having such a structure, the four points of the HDD can be elastically supported by one elastic support 36.
(12) Twelfth Embodiment Next, a twelfth embodiment will be described.

  As shown in FIGS. 11A to 11B and FIGS. 12A to 12D, the elastic support member 38 of the twelfth embodiment has two elasticityes shown in the tenth embodiment. The support 34 is connected and integrated. That is, the elastic support 38 of the twelfth embodiment includes the frame-shaped first fixing portion 11, and the four sets of the second fixing portion 12 and the elastomer portion 13 are arranged at the four corners of the first fixing portion 11. Yes.

  With the elastic support 38 having such a structure, the four points of the HDD can be elastically supported by one elastic support 38. The elastic support 36 of the eleventh embodiment is also an integral type that can elastically support four points of the HDD, but the elastic support 38 of the twelfth embodiment is in the direction of the elastomer portion 13. However, the eleventh embodiment is changed by 90 degrees, and the first fixing portion 11 is fixed to the HDD 5 side, while the second fixing portion 12 is fixed to the chassis 3 side.

  Therefore, as in the case of the tenth embodiment, since the height dimension of the elastic support 38 can be suppressed as compared with the eleventh embodiment, in a low-profile device with less space in the height direction, It is desirable to adopt the configuration as in the twelfth embodiment.

  Also in the twelfth embodiment, as in each of the embodiments described above, the first fixing portion 11 is a molded product made of plastic, so that the thickness of the portion fitted on the outer peripheral side of the elastomer portion 13 can be set to an arbitrary thickness. Can be designed to Therefore, by appropriately changing the plate thickness and changing the size of the gap formed between the elastomer portion 13 and the rigidity of the portion fitted on the outer peripheral side of the elastomer portion 13, The buffer performance can be adjusted so that the desired performance is exhibited.

(13) Thirteenth Embodiment Next, a thirteenth embodiment will be described.
As shown in FIGS. 13A to 13B and FIGS. 14A to 14E, the elastic support 40 of the thirteenth embodiment is the tenth embodiment or the twelfth embodiment. In the same manner as described above, the first fixing portion 11 is fixed to the HDD 5 side and the second fixing portion 12 is fixed to the chassis 3 side. However, it differs from the tenth embodiment and the twelfth embodiment in that a pair of the second fixing portion 12 and the elastomer portion 13 are provided for one first fixing portion 11.

  Therefore, in the case of the elastic support member 40 of the thirteenth embodiment, four elastic support members 40 are required when supporting the four corners of the HDD 5. However, if each of the four elastic support members 40 can be independently arranged in this way, the relative positions of the four elastic support members 40 than those shown in the tenth embodiment and the twelfth embodiment. You can change the relationship freely.

  Further, if necessary, five or more elastic support tools 40 can be arranged, and conversely, if not necessary, three elastic support tools 40 can be arranged. It can be finely adjusted.

  Furthermore, in the elastic support tool 40 of the thirteenth embodiment, as shown in FIGS. 15 (a) to 15 (e), the first fixing portion 11 is formed with a first mounting hole 21, and the first mounting portion 21 is formed. Six protrusions 23 are formed on the inner periphery of the hole 21.

  The projections 23 of these thirteenth embodiments project from the inner periphery of the first mounting hole 21 toward the center of the first mounting hole 21, as illustrated in the first embodiment. Unlike what was illustrated with the form, it protrudes also in the penetration direction of the 1st attachment hole 21. FIG.

  Therefore, these protrusions 23 have wavy irregularities in both the circumferential direction and the penetrating direction of the first mounting hole 21, and such wavy portions are fitted into the grooves 25 (FIG. 14 (f )), And the vibration isolation performance on the low frequency side can be improved.

(14) Modifications, etc. The embodiment of the present invention has been described above, but the present invention is not limited to the specific embodiment described above, and can be implemented in various other forms.

For example, in the first embodiment to the seventh embodiment, the protrusions 23 having various shapes are illustrated, but protrusions having other shapes may be used.
In the eighth embodiment and the ninth embodiment, the length adjustment mechanism is illustrated, but the same length adjustment mechanism is used in the frame-shaped first fixing portion 11 as shown in the eleventh embodiment. May be employed. In this case, the length of the frame-shaped first fixing portion 11 may be adjustable in one direction, or the length may be adjusted in two orthogonal directions.

  In the above embodiment, the hard disk recorder chassis 3 is given as an example of the first object, and the HDD 5 built into the hard disk recorder is given as an example of the second object. Of course, the elastic support of the present invention can be used.

  1, 30, 32, 34, 36, 38, 40 ... elastic support, 3 ... chassis, 5 ... hard disk drive, 11 ... first fixing part, 12 ... second fixing part , 12a ... cylindrical portion, 12b ... flange portion, 13 ... elastomer portion, 21 ... first mounting hole, 23 ... projection, 25 ... groove, 27 ... gap, 29 ... 2nd attachment hole, 31a ... convex part, 33a ... snap part, 31b, 33b ... through-hole.

Claims (5)

By interposing between the first object and the second object and elastically supporting the second object with respect to the first object, vibration and impact transmitted between the two objects are attenuated. An elastic support,
A first fixing part and a second fixing part in which either one is fixed to the first object and the other is fixed to the second object;
It is interposed between the first fixed part and the second fixed part, and when vibration or impact is transmitted from any one of the first fixed part and the second fixed part, it is elastically deformed. And an elastomer part that suppresses the vibration and shock from being transmitted to the other by attenuating the vibration and shock.
A first mounting hole is formed in the first fixing part, a second mounting hole is formed in the elastomer part, and the first fixing part is formed by fitting the elastomer part into the first mounting hole. And the second fixing portion is elastically supported by the elastomer portion by being fitted into the second mounting hole.
In addition, a plurality of protrusions are formed on the inner periphery of the first mounting hole, and a groove is formed on the outer periphery of the elastomer portion, and the plurality of protrusions are fitted into the groove. The elastic supporter, wherein the elastomer part is supported by the first fixing part in a state where a gap is formed between adjacent protrusions. The second fixed part has a shape having a cylindrical part inserted into the second mounting hole and a flange part formed at one end of the cylindrical part,
Of the one object to which the first fixing part is fixed and the other object to which the second fixing part is fixed, the other object and the flange part are sandwiched between the elastomer parts. In addition, the second fixing portion is fixed to the other object by inserting a screw into the cylindrical portion from the flange portion side and screwing the screw and the other object. The elastic support according to claim 1. The elastic support according to claim 1, wherein a plurality of the second fixing portions and the elastomer portion are provided for one of the first fixing portions. The elastic support according to claim 3, wherein the plurality of second fixing portions and the elastomer portion provided in one of the first fixing portions are configured to be able to change a distance between each other. The said 1st fixing | fixed part consists of a molded article of a plastic material. The elastic support tool as described in any one of Claims 1-4 characterized by the above-mentioned.

Images