CN1102792C - Recording and/or reproducing device and insulator - Google Patents

Abstract

A recording and/or reproducing device for a recording medium such as an optical disc includes a recording and/or reproducing unit, a base and a plurality of spacers. The recording and/or playback unit can record and/or playback information to and/or from the recording medium. A plurality of spacers may be placed between the recording and/or playback unit and the base, and flexibly support the recording and/or playback unit. The spacer is made of a foam material such as polyurethane foam.

Description

Recording and/or reproducing devices and isolating elements

The present invention relates to an insulator member and a recording and/or reproducing device, in particular to an insulator member made of foam material, and a recording and/or reproducing device using the insulator member.

Figures 1 and 2 show spacers used in disc recording and/or reproducing devices.

Fig. 1 shows a spacer usable in an optical disk reproducing apparatus in which an optical disk is used as an information recording medium. As shown in Fig. 1, the spacer includes a hollow spacer element 1 with various radial cross-sectional shapes, a lower shell 4 with a support shaft 3, the shaft of which can be fitted to the center of the spacer element 1 determined In the hole 2, and the disc holder 6 with the hip 5, on which the disc playback unit can be carried. The washer 7 can be fixed to the top end of the support shaft 3 of the lower case 4 by the fixing screw 8, and the spacer 1 can be fixed to the lower case 4 so that the spacer 1 is compressed in the up-down direction. The arm portion 5 of the disc frame 6 can be equipped with a fitting groove 9, which is open towards the top end side. When the fitting groove 9 matches the narrow portion 10 of the isolating element 1, the disc frame 6 can be softly supported on the lower case by the isolating element 1. 4 on.

Fig. 2 shows another example of a spacer usable in an optical disc recording and/or reproducing device. As shown in Figure 2, the spacer includes a hollow spacer element 11, which has a protrusion on one axial end of a radial cross-section without a definite shape, and a lower shell 4 with a supporting shaft 3, which can be inserted upward into the spacer. In the middle hole 12 of the element 11 , the upper shell 14 with the supporting shaft 13 which can be inserted downwards into the middle hole 12 of the spacer element 11 , and the disc holder 6 with the disc reproduction part 6 of the buttock 5 . The support shaft 3 of the lower case 4 and the support shaft 13 of the upper case 14 may be arranged such that their axes coincide with each other. The spacer element 11 can be installed on the support shafts 3 , 13 , and the fitting groove 9 of the arm portion 5 can be fitted with the narrow portion 15 of the spacer element 11 .

However, in any of the spacers shown in FIGS. 1 and 2, the spacer members 1, 11 are three-dimensionally molded from rubber by an injection molding machine, and the spacer members 1, 11 have an inner cavity portion. Therefore, in order to manufacture such spacer members 1, 11, a complex metal mold assembly is required, and much time and a lot of manpower are required to manufacture the spacer members 1, 11, thereby making the spacer expensive.

Since the spacer members 1, 11 are made of rubber, the spring constant becomes too high and the spacer characteristics deteriorate. Thus, it is difficult to obtain a desired spacer or a desired vibration isolation characteristic. In the spacer of Figs. 1 and 2, at the time of assembly, the washer 7 and the fixing screw 8 are required, and therefore, the number of components is increased, which is not economical. In addition, the workload of assembly will be increased, resulting in a decrease in processing capacity.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a recording and/or reproducing apparatus by which the above-mentioned problems are solved.

Another object of the present invention is to provide a spacer element, which can solve the above-mentioned problems.

Another object of the present invention is to provide a spacer, which can solve the above problems.

According to the invention, there is provided a spacer element placed between a movable part and a stationary part for softly supporting said movable part, comprising:

a substantially rectangular body;

a first mounting portion on the base for mounting the base to the movable portion; and

A second mounting portion is provided on the base for mounting the base to the stationary portion, wherein the base and the first and second mounting portions may be integrally molded from a foam material.

According to the present invention, there is provided a spacer comprising:

a movable part;

a stationary part; and

a plurality of spacer elements disposed between the movable portion and the stationary portion to softly support the movable portion, and the spacer elements include a first mounting portion mounted to the movable portion, and a second mounting portion mounted to the stationary portion, the spacer element has a substantially rectangular shape and is made of foam material.

According to the present invention, there may be provided a recording and/or playback apparatus comprising:

a recording and/or reproducing unit for recording and/or reproducing information on and/or from a recording medium;

a base; and

One of the above spacers.

Brief description of the attached drawings:

Fig. 1 is a schematic cross-sectional view of an example of a commonly used isolation assembly;

2 is a schematic cross-sectional view of another example of an isolation assembly;

3 is a perspective view of an outer surface of an optical disk reproducing device according to an embodiment of the present invention;

Fig. 4 is a perspective view showing part of a loading mechanism incorporated in the optical disk reproducing apparatus shown in Fig. 3;

Fig. 5 is a perspective view showing the manner in which the spacer element according to the first embodiment is fixed to the rack;

Figure 6 is a partial sectional view showing the manner in which the spacer element is secured to the bracket;

Fig. 7 is a perspective view showing the structure of an isolation element according to a first embodiment of the present invention;

Fig. 8 is a perspective view showing the structure of an isolating element according to a second embodiment of the present invention; and

Fig. 9 is a perspective view showing a spacer member according to a third embodiment of the present invention.

The spacer element and recording and/or reproducing apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. In a preferred embodiment according to the present invention, a disc playback device using an optical disc as a recording medium shall be considered as a recording and/or playback device according to the present invention, and a spacer element for a disc playback device shall be considered as is an isolating element according to the invention, which will be used as an example.

Fig. 3 shows an example of an optical disk reproducing apparatus in a perspective view. The optical disc playback device includes a housing 20 in which the loading mechanism shown in FIG.

The casing 20 of the optical disk playback device includes an upper casing 23 and a lower casing 24, each of which is detachable. The upper case 23 has been provided on its upper surface with a number of operation buttons 25 for searching information on the optical disc loaded in the disc case 70, or controlling a playback unit (not shown). Pivot member 21a, 21a forming one of pivot 21 assemblies can be installed to one side each end on the upper surface of upper case 24, and pivot portion 21b made up of another member of pivot 21 can be placed on these pivot members. Between 21a and 21a. The pivot portion 21b may be formed integrally with one side of the cover 22 .

The cover 22 has a liquid crystal display 26 fixed on its inner surface, and the liquid crystal display 26 can display information obtained after being processed by the playback unit when the playback unit processes the information read by the optical disc contained in the disc case 70, such as characters. , symbol or image. The liquid crystal display 26 is electrically connected to the printed circuit board on which the operation buttons are mounted through an electrical connection device (not shown) for electrically connecting the pivot portion 21b and the upper case 24 . When the cover 22 is rotated about the pivot 21, the cover 22 can be opened and closed relative to the housing 20 while maintaining the electrical connection between the liquid crystal display 26 and the printed circuit board.

The casing 20 has a defined opening portion 27 on its side surface, and the disk cartridge 70 can be loaded and removed therein. The opening portion 27 can be opened and closed by an opening and closing plate 28 rotatably supported on the upper case 24 . The loading mechanism part 30 may be placed in the housing 20 such that the insertion slot 31 of the loading mechanism part 30 is opposite to the inner side of the opening and closing plate 28 . When the disk cartridge 70 is inserted into the casing 20 from the opening portion 27 by pushing the opening and closing plate 28 with the disk cartridge 70, the disk cartridge 70 will be automatically loaded in the loading mechanism portion 30. In the case where the opening portion 27 has an eject button 29 for applying force to the loading mechanism portion 30 to unload the disk cartridge 70 mounted on the reproducing unit (not shown) on the rack, as described later, through the loading mechanism portion 30, so that the exit button 29 protrudes on the side surface.

As shown in FIG. 4, the loading mechanism part 30 is placed on a square box-shaped disk rack 32, its upper and front surfaces are opened, and it has a reproducing unit in which an unshown optical pickup and a turntable etc. are arranged. . The loading mechanism section 30 includes a slide plate 33 housed in the rack 32, which remains slidable in the front-rear direction, and a cartridge holder 34 supporting the rack 32, which is supported in such a manner that the cartridge holder 34 can be Parallel transformation in the up and down direction. Guide grooves 35 extending in the up and down direction are formed at the front and rear of the chassis 32, that is, at four positions on both sides thereof. These guide grooves 35 cooperate with the protruding parts 36 that are carried on the disc cartridge holder 34, so that these protruding parts 36 can move in the up and down direction, and the four protruding parts 36 of the disc cartridge holder 34 can be moved at the same time respectively. Four convex grooves 37 protruding from the slide plate 33 in the up and down direction cooperate.

In FIG. 4, reference numeral 40 denotes a shutter release lever for releasing the shutter of the disc cartridge 70 (see FIG. 3). The shutter release lever 40 includes a top portion 40a with an engaging wheel 41 engaged with a groove of the shutter 71 of the disc cartridge 70 thereon. The opposite base of the shutter release lever 40 is rotatably supported on the upper surface of the cartridge holder 34 . The shutter release lever 40 is constantly elastically biased by the wire spring 42 in the forward direction of the retainer 34 shown in FIG. 4 , and can seat the engagement wheel 41 on the insertion groove 31 . In FIG. 4, reference numeral 43 denotes an arcuate groove, on which the top 40a of the shutter release lever 40 is inserted, and which allows the top 40a of the shutter release lever 40 to move therein.

In the loading mechanism section 30 thus arranged, before loading the disk cartridge 70 into the loading mechanism section 30, the slide plate 33 is at the rear, and the convex groove 37 is placed on the guide groove 35 of the chassis 32. As a result, the cartridge holder 34 having the convex piece 36 whose position is defined by these guide grooves 35 and the convex groove 37 is moved upward by the slide plate 33 and placed on a playback unit (not shown). The front opening of the cartridge holder 34 constitutes the insertion groove 31 of the loading mechanism portion 30 .

At this time, though not shown, the slider 33 has a return spring stretched between it and the chassis 32, and the slider 33 is supported and detachably engaged by a rotatable stopper arm mounted on the rear of the chassis 32. The slide plate 33 is constantly biased in the forward direction under the elastic force of the return spring. On the other hand, the stop arm prevents the sliding plate 33 from moving in the forward direction.

In this state, when the disc cartridge 70 is inserted into the insertion groove 31 of the disc cartridge holder 34 and the engagement of the slide plate 33 is released by rotating the stopper arm backward by the top end of the disc cartridge 70 insertion direction, then the The slide plate 33 moves in the forward direction under the elastic force of the return spring. Next, the convex groove 37 of the slide plate 33 is moved in the forward direction, and the convex groove 37 overlapping the guide groove 35 of the chassis 32 is moved on the lower end side, whereby the convex piece 46 is moved along the convex groove. 37 is guided and moved on the lower end side, and as a result, the cartridge holder 34 is moved parallel to the rack 32 .

Therefore, the disc cartridge 70 can be loaded on the playback unit through the loading mechanism part 30, at this time, the shutter 71 can be moved by the shutter release lever 40, and a part of the disc can be exposed from the outside of the opening part of the disc cartridge 70, and it can be passed through the loading mechanism. The clamping member 38 of the mechanism section 30 and the playback unit on the rack 32 are held by turning out, thereby completing the loading operation. At this time, the optical pickup mounted on the disc holder 32 faces the open portion of the disc cartridge 70, and the information recorded on the optical disc is reproduced by the optical pickup.

On the other hand, when the cartridge 70 is to be removed from the reproducing unit on the rack 32, the eject button 29 should be pushed. When pushing the exit button 29, the slide plate 33 behind the exit button 29 will be pushed in the depth direction by the exit button 29, and the elongated groove 37 will move backward according to the movement of the slide plate 33, thereby making the plate stacked on the disk The convex groove 37 on the guide groove 35 of the frame 32 moves to the upper end side. As a result, the convex piece 36 is guided by the convex groove 37 on the upper end side, and thus the cartridge holder 34 is lifted and moved out of the chassis 32 in the horizontal direction.

Likewise, a stop butt (not shown) mounted on the disk holder 32 rotates in the forward direction to hold the slide plate 33, and pushes the disk case 70 forward to such an extent that its top end passes through the wire spring 42. The spring force is applied to the shutter release lever 40 under the condition of elastic biasing force is grasped. Next, the top end portion of the disk cartridge 70 protrudes from the opening portion 27 through the insertion groove 31 . The user can take out the disc cartridge 70 from the casing 20 by pulling the part of the disc cartridge 70 protruding from the opening portion 27a, so that the disc cartridge 70 can be ejected from the playback apparatus.

The loading mechanism part 30 elastically supports the rack 32 on the casing 20 by using a plurality of spacers. A first embodiment of the spacer will be described below with reference to FIGS. 5 to 7 .

The spacer element 50 according to the first embodiment can be produced by die-cutting foam-molded board-shaped foam. The spacer 50 can be made of any foam material, and plastic foam (such as polyester foam, epoxy resin foam, silicon foam) and rubber foam (such as natural rubber foam, styrene-butadiene rubber foam, nitrile rubber foam) can be used isolation element 50 .

The spacer spacer 50 made of the above-mentioned foam material by die-cutting can form a plate or a rectangular body slightly stretched in the transverse direction, and has a defined rectangular fitting hole 51 in its center to engage with the tray frame 32 , form arc grooves 52, 53, 54, 55 on its four surfaces on the spacer 50 except the front and back, that is, on the upper and lower surfaces and the left and right surfaces outside the matching hole 51, so that the spacer 50 can move in the front, back, up, and down directions. It can be deformed softly, and the elastic constant can also be set to a desired value. If the two lower ends of the spacer 50 are circular arcs in the transverse direction, the spring constant can be further adjusted.

In order to mount the spacer member 50 to the rack 32, as shown in FIG. As shown in FIGS. 5 and 6, the spacer 50 includes a positioning portion 61 for properly positioning the spacer element 50 at a predetermined position, a fitting portion 62, which protrudes from the top of the positioning portion 61, and an insertion portion 63, It protrudes from the top of the mating portion 62 . The fitting portion 62 is shaped and sized according to the shape and size of the fitting hole 51 so that it can be properly fitted into the fitting hole 51 of the spacer 50 . In addition, the insertion portion 63 has ratchet parts 64, 65, 66, 67 formed on its upper and lower left and right surfaces, and these ratchet parts 64, 65, 66, 67 can be used to prevent the spacer 50 from coming off from the buttocks 60. .

As shown in FIG. 6 , the lower shell 23 and the upper shell 24 have a fixing portion 56 therebetween for preventing the movement of the isolation element 50 fixed on the rack 32 so that the rack 32 is elastically supported on the shell 20 . The fixed portion 56 includes a pair of lower frame members 57 , 57 on the lower case 23 and a pair of upper frame members 58 , 58 on the upper case 24 . Both the lower frame element 57, 57 and the upper frame element 58, 58 are formed as the letter C. If they are arranged so that their groove sides face each other, an adjustable space can be formed in which the spacer member 50 can be adjusted at its lower end (see FIG. 5 ) to become an engaging portion with the lower case 23 .

The tray frame 32 should preferably be made of synthetic resin such as ABS (acrylonitrile-butadiene-propylene copolymer) resin or polyacetal (POM). However, the material of the pan frame 32 is not limited thereto, and metal materials such as steel plates or aluminum alloys may also be used as the material of the pan frame 32 .

The spacer member 50 thus arranged can be mounted on the disk frame 32 through the following assembly process.

First, the fitting hole 51 of the spacer member 50 is fitted therein with respect to the insertion portion 63 of the arm portion 60 . In this state, if the spacer 50 is pushed in the direction of the arrow shown in FIG. Then, under the condition that the spacer member 50 is properly positioned by the positioning portion 61, the spacer member 50 can be installed and held by the buttocks 60, whereby the spacer member 50 protrudes through the ratchet parts 64 on the four surfaces of the insertion portion 63. to 67 to prevent falling off from the arm portion 60.

After each spacer element 50 is installed on the necessary positions (in this embodiment, four positions) of the disk frame 32, the lower part of each spacer element 50 is assembled in the lower case 23 on its adjustable space, wherein The fixed portion 56 is adjustable. Then, the upper frame part 58 is respectively fitted into the fixing part 56 of the spacer element 50 through the fastening of the upper case 24 and the lower case 23, thereby making the spacer element 50 Suitably positioned on the housing 20 and secured in all directions of front, rear, left, right, up and down. Next, the rack 32 and the loading mechanism section 30 are supported by the lower case 23 through the four spacers 50 so that they float below. This means that the tray 32 and the loading mechanism section 30 are supported with a predetermined interval formed therebetween, and the tray 32 and the loading mechanism section 30 are supported in such a manner that they can be loaded by the upper and lower casings 23, 24. Move within the adjustment space formed. The spacer 50 supported in the upper and lower cases 23, 24 can be prevented from fluctuating when the upper portion of the spacer member 50 is bent by the fixing portion 56 of the upper and lower cases 23, 24.

In the above isolation structure, when an external force is applied to the housing 20, the isolation member 50 absorbs or reduces external vibration, and prevents the vibration from being transmitted to the chassis 32 or the loading mechanism portion 30, or reduces the vibration.

According to the first embodiment, since the spacer member 50 is made of foam-molded board-shaped foam, the spring constant of the spacer member 50 can be reduced as much as possible while keeping the spacer member 50 under a certain rigidity. Therefore, the isolating member 50 can reliably absorb external vibrations, and can reliably prevent such vibrations from being transmitted to the playback unit on the disk frame 32, so that the adverse effects of vibrations acting on the playback operation of the playback unit can be avoided. , or can effectively suppress the transmitted vibration. As an example, when a bad influence acts on the playback operation of the playback unit on the disc carriage 32, the focus servo or the tracking servo of the optical pickup in the playback unit cannot interrupt the reading of information from the disc.

Since the spacer element 50 can be molded by die cutting, the spacer element 50 can be manufactured very cheaply compared to normal rubber molded spacers and the efficiency of assembly is improved.

Figures 8 and 9 represent the second and third embodiments of the present invention, as shown in Figure 8, according to the spacer 80 of the second embodiment can form a rectangular body or plate, it comprises the matching hole 81 that determines on the central part, Slots 82, 82 extending toward the direction of the matching hole 81 from the upper and lower surfaces and the substantially middle of the left and right surfaces of the spacer element 80, and rectangular holes 83 separated by adjacent slots 82, 82 at four corners, 84. In the case of the second embodiment, the fitting hole 81 of the spacer member 80 may be slightly offset on the upper surface side so that the height of the hole 84 on the lower side is set slightly greater than the height of the hole 83 on the upper side. Similar to the above-described embodiments, fitting holes 81 may be incorporated into the arms 60 of the tray 32 .

Since the spacer element 80 according to the second embodiment has a slot 82 in the middle of each surface, and holes 83, 84 at the four corners, these slots 82 and holes 83, 84 allow the spacer element 80 to be on the upper surface. , down, left, right, front and back directions are deformed softly. Also, under adjustment, the isolation member 80 has a predetermined spring constant, and at the same time, the stiffness of the entire isolation member 80 can be reduced.

The spacer element indicated by reference numeral 90 in FIG. 9 may also be formed as a rectangular body or a plate, and it includes a fitting hole 91 in its central part, and L-shaped hole slots 82, 83 surrounding the fitting hole 91. In the case of the third embodiment, the shape of the holes 92, 93 can allow the spacer member 90 to be softly deformed in the up, down, left, right, front and rear directions, and the spacer member 91 can have a predetermined elasticity under adjustment. constant, while the rigidity of the entire spacer element 90 can be reduced. Also, in the spacer member 90 according to the third embodiment, fitting holes 91 serving as mounting portions can be incorporated into the arm portions 60 of the chassis 32 similarly to the first and second embodiments.

In the above-described embodiments, an optical disc reproducing device for reproducing information previously recorded on an optical disc used as an information recording medium has been described as an example of a recording and/or reproducing device. However, the present invention is not limited to the above-mentioned optical disc playback device, and of course, the principles of the present invention can also be applied to magneto-optical disc recording and/or playback devices, and other recording and/or playback tape-shaped recording media such as magnetic tape. and/or playback device. Any shape of the spacer is possible as long as the shape of the spacer allows the spacer to deform softly. Further, at least one or more grooves may be provided according to the spring constant of the spacer to adjust or control the spring constant of the spacer. The groove can be removed if not necessary.

Preferred embodiments of the invention have been described with reference to the accompanying drawings, it can be understood that the present invention is not limited to these specific embodiments, and those skilled in the art can carry out various variations and modifications, but they all can not depart from the The scope or spirit of the invention is defined by the following claims.

Claims (19)

1. one kind is placed between moveable part and the stationary part in order to the isolated component of the described moveable part of flexible support, comprising:

A matrix that comes down to cuboid;

The first installation part that has on described matrix is in order to be installed to described matrix on the described moveable part; With

Second mounting portion that has on described matrix, in order to described matrix is installed on the described stationary part, wherein said matrix and described first and second mounting portions can form by foamed material is Unitarily molded.

2. isolated component as claimed in claim 1, wherein said matrix further comprises at least one control section, with so that described matrix can flexibly be out of shape and the elastic constant of the described matrix of described control section may command.

3. isolated component as claimed in claim 2, wherein said control section are by constituting from described matrix outside to the formed slot part in described mounting portion.

4. isolated component as claimed in claim 2, wherein said control section are opening portions.

5. isolated component as claimed in claim 2, wherein said matrix, described mounting portion and described control section can be made of isocyanurate foam integral body.

6. separator comprises:

One moveable part; With

One stationary part;

Be arranged between described moveable part and the described stationary part in order to flexibly to support a plurality of isolated components of described moveable part, and described isolated component comprises the first installation part that is installed on the described moveable part, with second mounting portion that is installed on the described stationary part, described isolated component is in fact cuboid and is made by foamed material.

7. separator as claimed in claim 6, wherein said isolated component comprises at least one control section, flexibly is out of shape in order to can make described isolated component, and the elastic constant of the described isolated component of described control section may command.

8. separator as claimed in claim 7, wherein said isolated component is to be made by isocyanurate foam.

9. separator as claimed in claim 6, wherein said moveable part comprises the extension that described isolated component can be mounted thereon, described the first installation part includes mounting hole, can be assembled in the described extension, comprise a slip-off preventing part with described extension, in order to prevent that described isolated component is by coming off on it.

10. one kind is write down and/or replay device, comprising:

The record and/or playback unit, in order to and/or from recording medium recording and/or playback information;

One base portion; With

A separator as claimed in claim 6.

11. as the record and/or the replay device of claim 10, wherein said isolated component comprises a mounting portion, in order to be installed on described record and/or the playback unit described isolated component and at least one control module, in order to the control elastic constant.

12. as the record and/or the replay device of claim 11, wherein said control section is a groove part, it is formed to described mounting portion by the described isolated component outside.

13. as the record and/or the replay device of claim 11, wherein said control section is an opening portion.

14. as the record and/or the replay device of claim 11, wherein said isolated component forms basically flat, and described isolated component can be installed on described record and/or the playback unit along the direction perpendicular to its thickness direction.

15. record and/or replay device as claim 11, wherein said record and/or playback unit comprise a plurality of extensions that described isolated component is installed, and described extension has the slip-off preventing part, inserts behind the described extension and comes off from described extension in order to prevent described isolated component.

16. as the record and/or the replay device of claim 10, wherein said base portion comprises restricted part, is installed to moving of a plurality of isolated components on described record and/or the playback unit in order to restriction.

17. as the record and/or the replay device of claim 15, wherein said restricted part is a concave portions, described isolated component can be assemblied in wherein.

18. as the record and/or the replay device of claim 10, wherein said isolated component is by making by the soft foamed material that is out of shape.

19. as the record and/or the replay device of claim 10, wherein said isolated component is made by isocyanurate foam.

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