CN2745167Y - Cassette mechanism of an ultrathin optical disk player - Google Patents

Abstract

The utility model relates to a cassette mechanism of an ultrathin optical disk player, comprising an outer frame and a host machine frame. The host machine frame is provided with a load motor, a transmission component, an upper guide plate component, a pressing disk arm component, a roller arm component and an optical head seat component. The host machine frame is arranged in the outer frame by supporting feet. An oiling vibration damping cushion and a vibration damping spring are arranged between the supporting feet and the outer frame, wherein, the optical head seat component and the roller arm component use the dynamics of the load motor together. The dynamics transmission commutation between the roller arm and the optical head seat by the motor transmission component uses a clutch apparatus which is composed of several connecting rod arms in the load motor transmission component. Disc loading and optical head feed of the utility model adopt the same motors whose number is one less than that of the motors of the traditional design. The structure is simple, and the height of the cassette mechanism and cost are greatly decreased. The cassette mechanism is compatible with discs of 12cm and 8cm by adopting a simpler method. The utility model is especially suitable for vehicular DVD players and can be applied in household machine types.

Description

A kind of movement of ultrathin CD player

Technical field

The utility model relates to a kind of movement of ultrathin CD player, is meant the movement of the ultrathin CD player of a kind of suction-type especially.

Background technology

Because the restriction in automotive interior space, the position that is fit to installation and operation vehicle entertainment system is very narrow and small, and more people is arranged at present because a variety of causes has been selected compact car, but the demand to the compact car vehicle entertainment system is higher, but compact car often can only provide the space (be commonly called as 1DIN) suitable with the on-vehicle player standard size can hold this type systematic, so LCD and player must be made the size of 1DIN.Present suction type CD player movement is owing to the size that the problem of thickness is had no idea and LCD is accomplished 1DIN together, therefore as being applied to the requirement that this type of environment just is faced with miniaturization, slimming.The basic structure of existing suction type CD player movement is, based on the mainframe in the movement outside framework, being equipped with the dish arm component that sucks or withdraw from video disc on this mainframe reaches to advancing dish and moving back the motor transmission component that dish provides power, drive the main motor sub-assembly of video disc rotation and the motor sub-assembly that slides for shaven head in addition, promptly have three CD-ROM drive motor, on mainframe, also be provided with other complementary assembly; Because the entire equipment of need packing in narrow space, particularly the space of mainframe is very limited therefore to leave movement for, and it is relatively more difficult that three motors and gear train are installed in this limited space, and cost is than higher.Can we be by optimizing structure and adopting the mode of shared motor to reduce taking and reducing cost of space?

Summary of the invention

The purpose of this utility model provides the existing 12 and 8 centimetres of video discs of a kind of compatibility, thereby and turnover video disc and shaven head slide a shared motor and simplify and then optimized cassette mechanism structure and made it the ultra-thin disc player clock mechanism of further miniaturization, slimming.

Designed a kind of movement of CD player according to above-mentioned purpose, comprise outside framework, mainframe, be separately installed with on the mainframe and load motor and transmission component thereof, the upper guide plate assembly, press the dish arm component, the roller arm assembly, the shaven head holder assembly, small movement is installed in the mainframe on the corresponding locating shaft, by the detection arm assembly, travelling arm assembly and the pressure dish arm component of pressing the dish arm to form are arranged on the top of mainframe, roller arm assembly and loading motor lay respectively at the front end and a side of mainframe, its mainframe is installed in the outside framework by feet, is provided with oiling beam and damping spring between feet and outside framework.Simultaneously, the loading motor that is arranged on mainframe one side is connected with the roller arm assembly by its transmission component, also is connected with bare headed holder assembly by its transmission component; The power transmission conversion of motor transmission component between roller arm and shaven head seat is by means of loading the arrangement of clutch that several pitman arms are formed in the motor transmission component.

The utlity model has following good effect: 1, can make the thickness of CD player movement drop to 20 millimeters, its ultra-thin structure can make system's complete machine have more space that miscellaneous part is installed and increase function, has strengthened the function of complete machine and has improved added value.2, can adopt plastic components and miniaturization Design in a large number, and two actions of video disc loading and bare headed feeding are finished by individual motor with one, when reducing the part number, improve reliability, reduce cost.3, the video disc of compatible 12cm and 8cm, the wide adaptability of video disc.4, can tilt or erect installation, help the product of complete set manufacturer's exploitation unique style.5, simple in structure, number of spare parts is less, and assembling is simple.6, adopt the oiling beam to add the damping modes of spring, make vibration reduction efficiency be greatly improved, it is strong to read the dish ability, can satisfy the broadcast request under the condition of abominable road conditions.

Description of drawings

Fig. 1 is a kind of schematic perspective view of the present utility model; Fig. 2 is a parts decomposing schematic representation of the present utility model; Fig. 3 is the schematic perspective view of mainframe of the present utility model; Fig. 4 is the installation schematic perspective view of upper guide plate assembly and photoelectric sensor; Fig. 5 is the installation schematic perspective view of motor and driving gear component; Fig. 6 is the installation schematic perspective view of roller arm and travelling arm assembly; Fig. 7 is the installation schematic perspective view of bare headed holder assembly; Fig. 8 is for pressing the installation schematic perspective view of dish arm component; The installation schematic perspective view of Fig. 9 oiling beam and damping spring; Figure 10 is the work synoptic diagram of the testing agency of 12cm and 8cm video disc.

Specific embodiments

The technical solution of the utility model is: the mainframe of movement is a plastic material, be fixed on a side of mainframe by loading motor sub-assembly that motor, motor bracket and one group of transmission gear form, on the roller shaft and be installed on the place ahead that roller arm assembly on the roller arm is installed on mainframe, a gearing mesh on a gear and the feed gear wheel group is arranged on the roller shaft by two roller housings.When advancing dish, video disc triggers sensor, motor begins to rotate, rotate by the gear on the gear set drive roller shaft, owing to the rotation of roller shaft video disc is sucked, advancing the dish back trigger mechanism that puts in place, motor slides by the gear driven travelling arm, promotes roller arm and video disc and disengages, gear on roller arm gear and the motor bracket breaks away from engagement, after roller arm was pulled to limit position, travelling arm continued to slide, the state of the pinning of releasing of drivening rod arm and roller arm power train, pitman arm has rotation by a small margin then, break away from gear set and the bare headed feed gear wheel that video disc loads and be meshed, with transmission of power to bare headed feeder assembly.When going out dish, shaven head enters interior week, promotes a pitman arm, gear on another pitman arm is broken away from and the engagement of bare headed feed gear wheel group and and video disc loaded teeth wheels mesh, by roller video disc is sent movement then.Above the roller arm assembly and the photoelectric sensor on the base circuit board form video disc position probing assembly, small movement is fixed on the mainframe by screw, be installed on the top of mainframe by detection arm and the pressure dish arm component of pressing the dish arm to form, mainframe is fixed on the outside framework by oiling beam and spring flexibility, and loam cake is fixed in the outside framework top.

Fig. 1, Fig. 2 have described the utility model and have been made of parts such as mainframe, outside framework, pressure dish arm component, roller arm assembly, upper guide plate assembly and motor driving gear set.

Fig. 3 is illustrated the structure of mainframe.This mainframe is the whole frame of injection mo(u)lding, motor driving gear component, gear set, roller arm assembly, bare headed holder assembly, pressure dish arm component, all is installed on this mainframe.

Fig. 4 has provided the upper guide plate assembly and whether has detected forming of the photoelectric sensor that entered by dish, and the left and right sides of upper guide plate 12 is equipped with little upper guide plate 19 and 20 respectively, and the upper guide plate assembly is installed on the top of mainframe by button bit 12-a and 12-b.The sensor line plate 77 that photoelectric sensor 78 is installed is fixed in the top of mainframe 10 by button bit 10-c on the mainframe and the button bit in the upper guide plate assembly.

Fig. 5 is the motor driving gear component, the motor 74 that worm screw 34 is housed is fixed on the motor bracket 13 by two screws 66, gear 46 is inserted in the corresponding axle on the mainframe 10, cross helical gear 39 is installed in the axle corresponding on the mainframe, and and 46 engagements of installed gear, the pitman arm 33 that is with gear 44 is inserted in the groove on the mainframe, and can be in this groove swinging by a small margin, its amplitude of fluctuation is limited by the limited block on the mainframe, cross helical gear 38 is inserted on the mainframe in the corresponding axle, when pitman arm 33 in swing time, cover gear 44 meetings and cross helical gear 38 in the above is meshed, the pitman arm 31 that is with gear 47 is inserted in the same axis that gear 46 is housed, pitman arm 31 can around this do by a relatively large margin swinging and all the time with gear 36 engagement, pitman arm 30 is inserted in the corresponding axle that is arranged on the mainframe, at this position pitman arm 30 swinging by a small margin can be arranged, limit the scope of its swing by the limited block on the mainframe, gear 45 is inserted on the mainframe in the corresponding axle, gear 43 is inserted in the axle that is equipped with the concentric of the groove of pitman arm 33, gear 42 is inserted in the axle that is with pitman arm 30, gear 42 is meshed with gear 43 and 45 all the time, pitman arm 32 is inserted on the mainframe in the corresponding axle, spring 63 is inserted in the axle of pitman arm 31 tops, and be that fulcrum acts on respectively on pitman arm 30 and 32 with this axle, can fasten mutually and lock with pitman arm 30 and 32 respectively when pitman arm 31 swings, gear 47 on the pitman arm is meshed with gear 39 with gear 43 respectively simultaneously, thereby reach the progression that changes gear set, respectively power is passed to the purpose of CD loading and bare headed feed gear wheel group.The motor bracket 13 that motor 74 is housed is installed on the axle that is with gear 36 by button bit, is fixed on the mainframe by screw 65 then.Gear cap 27 by and the Gear Axle Over-surplus engage sleeves on gear shaft, play spacing effect, screw 69 is fixed in gear cap on the mainframe.

Fig. 6 pair roller arm and travelling arm assembly are illustrated.Roller arm is placed in the both sides of roller shaft 51 respectively by two rollers 73, two ends are equipped with pad 72 and axle sleeve 29 respectively then, a roller shaft end wherein is with roller arm gear 41 by interference fit, the axle sleeve 29 at two ends respectively with roller arm 28 corresponding two button bit 28-a interference fit.The roller shaft 51 that is with roller 73 can freely rotate in respect to roller arm 28 at axle sleeve 29, and the roller arm assembly is put into the groove of mainframe front end respectively and can freely be rotated; The roller arm assembly is installed on the both sides of the front portion of mainframe, side at mainframe is equipped with roller arm connecting rod 24,26, the through hole 24-b of roller arm connecting rod 24 and the boss 28-b of roller arm 28 match, wherein roller arm connecting rod 25 links roller arm connecting rod 24 and roller arm connecting rod 26, torsion spring 60 is fixed on mainframe and the roller arm connecting rod 24, opposite side at mainframe, gear 37 is inserted in the axle 50 that is fixed on the mainframe, gear 40 is inserted in relevant position on mainframe then, roller arm connecting rod 23 is inserted on the mainframe, and the boss on the roller arm 28 is enclosed within the corresponding groove of roller arm connecting rod 28, tooth bar 21 is installed on the groove of travelling arm 22 lower rear from the top, spring 61 is connected on tooth bar 21 and the travelling arm 22, the travelling arm 22 that tooth bar 21 is installed slips into mainframe from the rear portion of mainframe by groove, the groove in travelling arm 22 the place aheads and the boss on the roller arm connecting rod 23 match, and torsion spring 62 connects the rear portion of mainframe and travelling arm 22.

Fig. 7 is the assembling parts exploded pictorial of bare headed holder assembly, screw 69 is fixed in bare headed shell fragment 7 and screw mandrel shell fragment 16 on the same position of shaven head 76, be with screw mandrel axle sleeve 17 on the screw mandrel 52, be with screw mandrel cross helical gear 35 again at an end that is with screw mandrel axle sleeve 17, one end of polished rod 53 is fixed by the button bit of shaven head seat 11, the other end is fixing by adjusting shell fragment 8, shaven head 76 is inserted in the other end on the polished rod that is fixed in the shaven head seat 11 after being with the screw mandrel 52 that screw mandrel cross helical gear 35 and screw mandrel axle sleeve 17 are housed, the other end with screw mandrel 52 inserts in the screw mandrel axle sleeve 18 that is enclosed within on the CD seat 11 then, on shaven head seat 11, buckle into worm screw shell fragment 9 and push down on the screw mandrel axle sleeve 52 that is with screw mandrel 52, screw mandrel 52 is spacing.Be inserted in spring 58 on two axles of the relevant position on the mainframe 11, screw 68 is fixed on the axle that is with spring 58 by shaven head seat 11.

Fig. 8 has provided the exploded pictorial of pressing the dish arm component.Detection arm 14 is rotated then to buckle into by the breach on pressure dish arm 3 and is pressed on the dish arm 3, the cover latch plate 5 that is with cover 15 is fixed in by button bit presses on the dish arm 3, press dish arm axle 49 to be fixed on a side of mainframe 10, on pressure dish arm axle 49, be with and press dish arm spring 57, press the dish arm component to pass the pressure dish arm axle 49 that is with spring 57 earlier, the boss with mainframe 11 other ends interlocks then.

Fig. 9 is oiling beam and damping spring assembly.Two the same beams 71 of performance are installed on the front portion of mainframe 2 by button bit, other has a different beam 70 also to be installed on rear portion on the mainframe 2 with crossing button bit, be with the identical spring of elasticity coefficient 55 on two the beam 71 in front, be with a different spring 54 on the beam 70 at rear portion, the mainframe that each parts are housed just matches by being fixed in 3 crash roll axles on the mainframe and the beam 55 on the mainframe.

The process that Figure 10 advances or goes out video disc has been carried out the diagram signal.When the 12cm video disc is inhaled into movement, little upper guide plate on video disc and edge, the upper guide plate left and right sides by upper guide plate the time contacts, and little upper guide plate makes video disc with respect to the variation that movement produces certain angle, makes video disc enter into movement with less angle, video disc continues enters movement, A place on the detection arm has been run at the edge of 12cm video disc, because the effect of roller, video disc continues to be inhaled into, thereby make detection arm run into tooth bar, tooth bar moves, and gearing mesh, finishes trigger action.The 8cm video disc is when being inhaled into movement, because the relation of the shape of upper guide plate, the 8cm video disc can high perk enter movement, simultaneously because the 8cm video disc is to guarantee that it just in time enters in the central authorities of movement when inserting movement, on pressure dish arm, two little projection C are arranged, as figure, if the 8cm video disc be not the center enter movement the time 8cm video disc the edge can meet among these two projection C one earlier, because video disc continues to drive the suction movement by roller, the video disc of being run into projection has only the deflection center to continue to enter movement, till running into two projections, running into two projections at the same time contacts with detection arm B place at the edge of the video disc of 8cm before, the position of 8cm touching detection arm is different with the position of 12cm, and not in one plane, thereby the different different pieces that trigger same detection arm of angle that this movement relies on video disc to enter movement achieve the goal, very simple of structure.

Claims (8)

1, a kind of movement of ultrathin CD player, comprise outside framework, mainframe (10), be separately installed with on the mainframe and load motor and transmission component thereof, the upper guide plate assembly, press the dish arm component, the roller arm assembly, the shaven head holder assembly, small movement is installed in the mainframe on the corresponding locating shaft, by the detection arm assembly, travelling arm assembly and the pressure dish arm component of pressing the dish arm to form are arranged on the top of mainframe, roller arm assembly and loading motor lay respectively at the front end and a side of mainframe, it is characterized in that mainframe is installed in the outside framework by feet, between feet and outside framework, be provided with oiling beam (70) and damping spring (54).

2, movement according to claim 1 is characterized in that the loading motor that is arranged on mainframe one side is connected with the roller arm assembly by its transmission component, also is connected with bare headed holder assembly by its transmission component.

3, movement according to claim 2 is characterized in that the power transmission conversion of motor transmission component between roller arm and shaven head seat is by means of loading the arrangement of clutch that several pitman arms are formed in the motor transmission component.

4, movement according to claim 3, it is characterized in that described arrangement of clutch comprises loading motor driving gear component, the motor (74) that worm screw (34) are housed in this assembly is fixed on the motor bracket (13), be installed on cross helical gear (39) and gear (46) engagement in the last respective shaft of mainframe (10) respectively, the pitman arm (33) that is with gear (44) is installed on the mainframe in the groove of swing that matches and allow about it by a small margin, the gear (44) when pitman arm (33) swing on it and be inserted in that the cross helical gear in the corresponding axis (38) meshes on the mainframe; Can around axle do that by a relatively large margin the pitman arm (31) that swings and be with gear (47) is inserted in the same axis that gear 46 is housed and and gear (36) engagement, the pitman arm that can swing by a small margin (30) is inserted in the corresponding axle that is arranged on the mainframe, gear (45) is inserted on the mainframe in the corresponding axle, gear (43) be inserted in be equipped with and the axle of the groove concentric of pitman arm (33) in, gear (42) is inserted in the axle that pitman arm (30) is housed, gear 42 is meshed with gear 43 and 45, pitman arm (32) is inserted in the corresponding axle on the main frame, torsion spring (63) is inserted in the axle of pitman arm (31) top, and is that fulcrum acts on pitman arm (30 respectively with this axle, 32) on.

5, movement according to claim 4, it is characterized in that motor bracket (13) is installed on the axle that is with gear (36) by button bit and goes up and be fixed on the mainframe, the spacing gear cap that works (27) and gear shaft interference fit are enclosed within on the gear shaft also that spiral shell is fixed on the mainframe.

6, movement according to claim 4 is characterized in that the amplitude that swings of pitman arm (30) and pitman arm (33) is limited by the limited block on its place, installation position mainframe respectively.

7, movement according to claim 4, it is characterized in that upper guide plate assembly and photoelectric sensor (78) being installed at mainframe front end upside, little upper guide plate (19,21) is housed respectively in the left and right sides of upper guide plate (12), the upper guide plate assembly is installed on the top of mainframe by button bit (12-a, 12-b), and the sensor line plate (77) of photoelectric sensor is fixed in the top of mainframe by the button bit in button bit on the mainframe (10-c) and the upper guide plate assembly.

8, movement according to claim 7, it is characterized in that above the mainframe at upper guide plate assembly rear, being equipped with pressure dish arm component, comprise and press dish arm (3), it presses dish arm axle (49) to be fixed on a side of mainframe, on pressure dish arm axle (49), be with and press dish arm spring (57), the cover latch plate (5) that is with cover (15) is fixed in by button bit presses on the dish arm, detection arm (14) is rotated then to buckle into by the breach on pressure dish arm and is pressed on the dish arm, press the dish arm component to pass the pressure dish arm axle 49 that is with spring 57 earlier, the boss with mainframe 11 other ends interlocks then.

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