JPH0821486A - Vibration suppressing structure - Google Patents

Abstract

PURPOSE:To provide a vibration suppressing structure which can easily connect a base member and a supported member. CONSTITUTION:As for a vibration suppressing structure which connects a base chassis 10 and a pick-up unit 12 by suppressing the transmission of the vibration from the base chassis 10 to the pick-up unit 12, the outer shape of a vibration suppressing member 14 is formed to a cylindrical form by using an elastic member, and each circumferential groove 18 is formed at both the ends. On the base chassis 10 and the pick-up unit 12, each cut part 16 which nipping-holds the circumferential groove 18 by the inner wall surface is formed. and the opening width of the cut part 16 is formed narrower than the outside diameter of the circumferential groove 18. The circumferential groove 18 at one end of the vibration suppressing member 14 is nipping-held by the cut part 16 of the base chassis 10, and the circumferential groove 18 at the other end is nipping-held by the cut part 16 in the pick-up unit 12, and the base chassis 10 and the pick-up unit 12 are connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration suppressing structure for connecting a base member and a supported member while suppressing transmission of vibration from the base member to the supported member.

[0002]

2. Description of the Related Art A conventional vibration suppressing structure will be described with reference to FIG. 50 is a base member. A mounting hole 52 is formed in the base member 50. Reference numeral 54 denotes a supported member, which is disposed above the base member 50 while being supported by a vibration suppressing member described later. Supported member 5
A screw hole 56 is formed in the No. 4. Reference numeral 58 denotes a vibration suppressing member, which is made of an elastic material such as rubber and has a cup-shaped outer shape. The vibration suppressing member 58 is the base member 50.
The base member 50 and the supported member 54 are connected to each other while suppressing the transmission of vibrations from the support member 54 to the supported member 54.
0 is for supporting the supported member 54 above.
Further, a through hole 62 is formed in the bottom portion 60 of the vibration suppressing member 58, and a flange portion 64 is provided around the outer wall surface of the edge of the opening portion.

The mounting structure of each of the above components will be described. First, the vibration suppressing member 58 is inserted from the bottom portion 60 side into the mounting hole 52 of the base member 50, and the flange portion 64 and the base member 50 are brought into contact with each other. Next, the flange portion 64 and the base member 50 are fixed with an adhesive 66. When the fixing is completed, screw 68 from the opening of vibration suppressing member 58.
Is inserted into the vibration suppressing member 58 and inserted into the through hole 62,
The screw hole 5 provided at the tip of the screw 68 in the supported member 54
The bottom portion 60 and the supported member 54 are screwed to each other in accordance with 6. As a result, the supported member 54 is connected and supported above the base member 50 via the vibration suppressing member 58. Since the vibration suppressing member 58 is formed of an elastic material such as rubber, the vibration of the base member 50 is absorbed by the vibration suppressing member 58, and the vibration from the base member 50 to the supported member 54 is suppressed. become.

[0004]

However, the above conventional vibration suppressing structure has the following problems. Since it is necessary to fix the base member and the supported member to the vibration suppressing member with screws or an adhesive, it takes time to connect the base member and the supported member, and there is a problem that workability is poor. Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a vibration suppressing structure capable of easily connecting a base member and a supported member.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, the first vibration suppressing structure according to the present invention is a vibration suppressing structure that connects a base member and a supported member while suppressing transmission of vibration from the base member to the supported member, and an elastic material. And a vibration suppressing member provided with at least one circumferential groove, the outer shape of which is formed into a cylindrical shape or a cylindrical shape.
At least one of the base member and the supported member is provided with a notch capable of sandwiching the peripheral groove with an inner wall surface, and the opening width of the notch is formed to be narrower than the outer diameter of the peripheral groove. , The peripheral groove of the vibration suppressing member is sandwiched by the inner wall surface of the notch provided in at least one of the base member or the supported member, and one end of the vibration suppressing member is a base member or It is characterized by being fixed to the other member of the supported members.

The second vibration suppressing structure according to the present invention is
In a vibration suppressing structure that connects a base member and a supported member while suppressing transmission of vibration from the base member to the supported member, the outer shape is formed into a cylindrical shape or a cylindrical shape using an elastic material. At the same time, a vibration suppressing member provided with a peripheral groove is provided at both end portions, and a cutout portion capable of sandwiching the peripheral groove with an inner wall surface is provided in the base member and the supported member, and an opening width of the cutout portion is It is formed to be narrower than the outer diameter of the peripheral groove, and the peripheral groove at one end of the vibration suppressing member is sandwiched by the cutout portion of the base member, and the peripheral groove at the other end is formed in the supported member. It is characterized in that it is sandwiched by notches.

[0007]

In the first vibration suppressing structure, the circumferential groove of the vibration suppressing member is sandwiched by the inner wall surface of the notch provided in at least one of the base member and the supported member, and one of the vibration suppressing members is held. Since the end portion of is fixed to the other member of the base member or the supported member, the vibration suppression member can be connected to at least one member of the base member or the supported member provided with the notch. It can be done easily, and because the opening width of the notch is narrower than the outer diameter of the circumferential groove,
Once the circumferential groove is once held in the cutout portion, it is difficult to pull out from the cutout portion.

In the second vibration suppressing structure, the vibration suppressing member is provided with peripheral grooves at both ends thereof, and the peripheral grooves are sandwiched between the inner wall surfaces of the notches provided in the base member and the supported member. Therefore, the vibration suppressing member and the base member and the supported member can be connected more easily.
Further, since the opening width of the cutout portion is formed narrower than the outer diameter of the circumferential groove, the circumferential groove is not easily removed from the cutout portion once it is sandwiched in the cutout portion.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to FIGS. First, each component of the vibration suppressing structure will be described with reference to FIG. In this embodiment, as an example, a vibration suppressing structure between a pickup unit to which an optical pickup in a CD player is attached and a base chassis will be described. Reference numeral 10 is a base chassis as a base member. Reference numeral 12 denotes a pickup unit as a supported member, and an optical pickup (not shown) is attached to the opening hole of the pickup unit 12. Reference numeral 14 is a vibration suppressing member that connects the base chassis 10 and the pickup unit 12 while suppressing transmission of vibration from the base chassis 10 to the pickup unit 12. Reference numeral 16 is a notch, and three are provided in each of the base chassis 10 and the pickup unit 12. It should be noted that the number of the notches 16 may be any number as long as it is three or more, but three is preferable in consideration of stability of the connection state between the base chassis 10 and the pickup unit 12 and connection workability.

The vibration suppressing member 1 will be described in more detail with reference to FIG.
4 and the notch 16 will be described. The vibration suppressing member 14 has an outer shape formed into a cylindrical shape or a cylindrical shape using an elastic material such as rubber, and has peripheral grooves 18 at both end portions. In the present embodiment, as an example, it is formed in a cylindrical shape, and a midway portion sandwiched by the two circumferential grooves 18 is formed as a buffer portion 20 that can expand and contract along the axial direction. Further, in this embodiment, the circumferential groove 18 and the buffer portion 20 are integrally formed by using the same rubber material, but the circumferential groove 18 is formed on the outer peripheral surface by using an elastic material such as rubber at both ends. It is also possible to adopt a structure in which a coil is used and the buffer portion 20 connecting the disks is a coil spring. Further, in the present embodiment, the inner wall surface in the back direction is formed in an arc shape having an inner diameter equal to or less than the outer diameter of the peripheral groove 18 so that the inner wall surface of the notch portion 16 can sandwich the peripheral groove 18. Circumferential groove 1 of vibration suppressing member 14
It may be formed in a polygonal shape as long as 8 can always elastically blast the inner peripheral surface of the cutout portion 16. The opening width of the cutout portion 16 is formed narrower than the outer diameter of the circumferential groove 18.

Next, the connection structure using the vibration suppressing member 14 of the base chassis 10 and the pickup unit 12 will be explained. One of the peripheral grooves 18 (upper side in FIG. 2) of the vibration suppressing member 14 is provided with a notch of the pickup unit 12. The cutout portion 1 of the base chassis 10 is formed in the portion 16 and also in the other circumferential groove 18 (downward in FIG. 2) of the vibration suppressing member 14.
Insert into 6 while shrinking from the opening. The inserted peripheral groove 18 expands in diameter in the arc-shaped inner portion of the cutout portion 16, and the outer peripheral surface of the peripheral groove 18 comes into close contact with the inner wall surface of the cutout portion 16. As a result, each circumferential groove 18 is sandwiched between the inner wall surfaces of the cutout portion 16, and the opening width of the cutout portion 16 is equal to the circumferential groove 18.
Since it is formed with a width narrower than the outer diameter of, it is difficult to remove it.

In the embodiment described above, the notch 16 is formed in both the base chassis 10 and the pickup unit 12.
And two peripheral grooves 18 are provided in the vibration suppressing member 14 to provide the base chassis 10 and the pickup unit 12.
The vibration suppressing members 14 are connected to each other. However, instead of this configuration, the notch 16 is provided only on one of the base chassis 10 and the pickup unit 12, and the vibration suppressing member 14 has only one circumferential groove 18. One of the base chassis 10 and the pickup unit 12 is connected to the vibration suppressing member 14 by sandwiching the circumferential groove 18 on the inner wall surface of the cutout portion 16, and the other of the base chassis 10 and the pickup unit 12 is a conventional example. Similarly to the above, the vibration suppressing member may be connected to the vibration suppressing member by adhesion or screwing.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be applied to a structure other than a vibration suppressing structure for an optical pickup in a CD player. It goes without saying that many modifications can be made without departing from the spirit of the invention.

[0014]

When the vibration suppressing structure according to the present invention is used,
Compared with the conventional example, there is no need to use an adhesive agent or a screw when connecting the base member or the supported member to the vibration suppressing member, so that the connecting operation can be performed quickly and easily.

[Brief description of drawings]

FIG. 1 is an assembled perspective view showing an embodiment of a vibration suppressing structure according to the present invention.

FIG. 2 is an enlarged sectional view of an essential part showing a connection structure by the vibration suppressing member of FIG.

FIG. 3 is an enlarged sectional view of an essential part showing a conventional connecting structure using a vibration suppressing member.

[Explanation of symbols]

 10 Base Chassis 12 Pickup Unit 14 Vibration Suppression Member 16 Notch 18 Circumferential Groove

Claims (2)

[Claims] 1. A vibration suppressing structure for connecting a base member and a supported member while suppressing transmission of vibration from the base member to the supported member, wherein the outer shape is cylindrical or circular using an elastic material. A vibration suppressing member that is formed in a columnar shape and is provided with at least one peripheral groove is provided, and at least one member of the base member and the supported member is a notch that can sandwich the peripheral groove with an inner wall surface. And the opening width of the notch is narrower than the outer diameter of the circumferential groove, and the circumferential groove of the vibration suppressing member is provided on at least one of the base member and the supported member. A vibration suppressing structure, which is sandwiched by an inner wall surface of the cutout portion, and one end of the vibration suppressing member is fixed to the other member of the base member or the supported member. 2. A vibration suppressing structure for connecting a base member and a supported member while suppressing transmission of vibration from the base member to the supported member, wherein the outer shape is cylindrical or circular using an elastic material. A vibration suppressing member that is formed in a columnar shape and has peripheral grooves provided at both end portions is provided, and a cutout portion that can sandwich the peripheral groove with an inner wall surface is provided at the base member and the supported member, and the cutout portion is provided. The opening width of the portion is formed narrower than the outer diameter of the peripheral groove, the peripheral groove at one end of the vibration suppressing member is sandwiched by the cutout portion of the base member, and the peripheral groove at the other end is formed as described above. A vibration suppressing structure, which is sandwiched between the notched portions of a supported member.