CN2395365Y

CN2395365Y - Laser head buffer mechanism of optic disc machine

Info

Publication number: CN2395365Y
Application number: CN 99241400
Authority: CN
Inventors: 陈亚平
Original assignee: DINGTIAN MICROELECTRIC Co Ltd SICHUAN
Current assignee: DINGTIAN MICROELECTRIC Co Ltd SICHUAN
Priority date: 1999-10-26
Filing date: 1999-10-26
Publication date: 2000-09-06
Anticipated expiration: 2009-10-26

Abstract

The utility model relates to a laser head buffer mechanism of an optic disc machine. The laser head buffer mechanism is to solve the problem that rigid collision is possible to occur between the existing laser head and a small machine core to cause the machine core to fail to feed and cause mistaken disk reading. The buffer mechanism comprises the small machine core 1 comprises a sliding bar 6, a laser head frame 10 which can be assembled on the sliding bar in a slide mode and can be connected with a motor in a driving mode via a feed mechanism, and a laser head 11 on the laser head frame. An elastic buffering element 9 which can collide with the laser head frame is arranged on the small machine core. The utility model has the advantages that the laser head buffer mechanism slows the impact force and keeps the function and the effect of the optic disc machine; the laser head buffer mechanism has simple structure, easy fabrication and low cost. The laser head buffer mechanism is suitable for various optic disc machines and acoustic image players such as DVDs, VCDs, CDs, LDs, etc.

Description

CD player laser head buffer gear

The utility model relates to the laser audiovisual appliances, particularly the laser head motion.

The laser head of CD player such as existing DVD, VCD, CD is contained on the bare headed frame, and bare headed frame is on two sliding bars that are fitted in small movement slidably, and small movement links to each other with electric-motor drive through the feed mechanism of gear ﹠ rack structure.This structure is in carrying or use, can be because of the contingent more violent bigger impulsive force that rigid collision produced between laser head and the small movement, make between the gear of movement feed mechanism or throw off between rack-and-pinion or stuck, thereby cause the movement feeding malfunctioning; Rigid collision also may make the bearing accuracy variation of laser head, causes reading intertwining mistake.

Given this, the purpose of this utility model is to provide a kind of CD player laser head buffer gear that can avoid taking place between laser head and the small movement rigid collision.

The utility model is on existing audio-video player basis, and employing increases flexible laser head buffer arm and realizes its purpose on small movement.

CD player laser head buffer gear of the present utility model (referring to accompanying drawing), the small movement (1) that includes sliding bar (6), be fitted in slidably on the sliding bar and through bare headed frame (10) that feed mechanism and electric-motor drive link and on laser head (11), it is characterized in that on small movement, having and can meet the flexible bolster (9) that bumps with bare headed frame.

The cantilever design that above-mentioned bolster is L-shaped, an end are connected in the tight below that small movement (1) is gone up sliding bar (6), and the other end leaves small movement.Bolster also can be other structures such as coil spring, laminated spring.

The utility model, in the carrying of CD player or when using, when bare headed frame took place on sliding bar that impact type is slided and small movement bumps, the bolster on bare headed frame and the small movement collided, make bolster generation elastic deformation and absorb impulsive force, avoid the generation of fierce rigid collision.

The L-shaped cantilever design of bolster structure, particularly bolster of the present utility model makes to the utlity model has the advantage that can slow down impulsive force, keep CD function and effect, and has advantage simple in structure, easy to manufacture, with low cost.

The utility model is applicable to various CD player, as audio-video players such as DVD, VCD, CD, LD.

Below, the utility model is further described to use embodiment and accompanying drawing thereof again.

Brief description of drawings.

Fig. 1 is the structural representation of a kind of CD player laser head buffer gear of the present utility model.Show and be fitted on the DVD player.

Fig. 2 is the gear train synoptic diagram of Fig. 1.

Fig. 3 is that the A of Fig. 1 is to view.The positional structure of display buffer spare.

Embodiment 1

A kind of CD player laser head buffer gear of the present utility model, as shown in drawings.Equipped with common DVD player.Small movement, bare headed frame, bolster, feed mechanism are arranged.

Above-mentioned small movement 1 adopts common structure to be installed on the movement 2 of DVD player.Small movement is made common structure, and the tetragonal deckle board 3 of hollow is arranged, and respectively is fixed with back rail 4 and bearing 5 at the front and rear of deckle board, the front and back end of two sliding bars 6 of the circular bar shape that parallels be connected on the bearing 5 respectively and back rail 4 on.The rear end of deckle board and movement 2 are hinged, and front end is connected on the lifting support 7 of ∏ font, and lifting support two poles are hinged at the middle part of movement with hinge 8.

On the back rail 4 of small movement 1, useful resilient material is made the bolster 9 of horizontal L shaped battened construction.One end of bolster is on the back rail of the tight below that vertically is connected in sliding bar, and the other end leaves back rail, forms cantilever design.Also can be nearby at two sliding bars, each installs a bolster.Also can meet the bolster that bumps mutually with bare headed frame in other position installing of back rail.

Above-mentioned bare headed frame 10 adopts common structure, can be fitted in slidably on the sliding bar 6 along sliding bar.On bare headed frame, adopt common structure to be equiped with the tooth bar 12 that common laser head 13 and common transmission are used.The front end that should be designed so that bare headed frame 10 can be met mutually with the bolster 9 on the above-mentioned back rail and be bumped, thereby constitutes the buffer gear of laser head.

Above-mentioned feed mechanism adopts common rack and pinion drive mechanism.Link to each other with common motor 14 transmissions on the support 13 on the deckle board 3 that is installed in small movement.Feed mechanism has the shaft gear 15 that is contained on the motor reel and is installed in duplicate gear on the support, and the gear wheel 16 in the duplicate gear is meshed with shaft gear 15, pinion wheel 17 is meshed with tooth bar 12 on the bare headed frame 10.Thereby can drive bare headed frame 10 through feed mechanism with motor and drive laser head 11 on it.When CD player is done feed motion in carrying or laser head, when the shaven head frame takes place on sliding bar that impact type is slided and small movement bumps, the shaven head frame can be directly with the back rail of small movement on bolster 9 meet mutually and bump, make bolster generation elastic deformation and absorb impulsive force, thereby avoid the generation of fierce rigid collision.

Claims

1, CD player laser head buffer gear, the small movement (1) that includes sliding bar (6), be fitted in slidably on the sliding bar and through bare headed frame (10) that feed mechanism and electric-motor drive link and on laser head (11), it is characterized in that on small movement, having and can meet the flexible bolster (9) that bumps with bare headed frame.

2, CD player laser head buffer gear according to claim 1 is characterized in that the cantilever design that said bolster is L-shaped, and an end is connected in the tight below that small movement (1) is gone up sliding bar (6), and the other end leaves small movement.