CN2757292Y

CN2757292Y - Shock-proof combined piece for machine core of optic disc player

Info

Publication number: CN2757292Y
Application number: CN 200420108670
Authority: CN
Inventors: 嵇一平; 张志勇; 华玉珍
Original assignee: XINKE FINE MECHANICS CO Ltd CHANGZHOU CITY
Current assignee: XINKE FINE MECHANICS CO Ltd CHANGZHOU CITY
Priority date: 2004-11-09
Filing date: 2004-11-09
Publication date: 2006-02-08
Anticipated expiration: 2014-11-09

Abstract

The utility model relates to a shock-proof combined part for a machine core of a compact disc player, which is provided with a base seat, a bottom seat of a drive component of a light picker, and three to four groups of shock-proof connecting components, wherein each group of the shock-proof component is respectively provided with a supporting seat, a shock-proof pad and a connecting part. The supporting seat basically forms a cylindrical shape, and a plate body at the bottom is provided with a central hole; the supporting seat is fixed on the bottom seat of the drive component of the light picker through the upper end thereof; the shock-proof pad basically forms a column shape, is made of elastic material and is provided with connecting holes which are positioned at the center and are communicated up and down and annular scarf-joint slots which are positioned on the outer side; the shock-proof pad is in elastic scarf joint with the supporting seat through the annular scarf-joint slots thereof and the central hole of the supporting seat. The connecting part is penetrated through the connecting holes of the shock-proof pad and elastically positions the shock-proof pad on the base seat, and the lower end surface of the shock-proof pad is in contact with the upper end surface of the bottom plate of the base seat. The utility model has the advantages of good elastic supporting effect, favorable shock-proof effect, simple structure, convenient assemblage and low cost.

Description

The shock-absorbing subassembly of the movement of disk player

Technical field

The utility model relates to the subassembly of the movement of disk player.

Background technology

The anti-seismic performance of disk player is a big event of dvd playback series products technical indicator.Make the range of application of its disk player wider, just must on movement shockproof, take certain measure.The movement of existing a kind of slot-in-type disk playing device has pedestal, upper cover plate, guide roller component, gear train, Control Component, optical pick-up device driving parts, vibration-damping connector and platen assembly.The platen frame of platen assembly and the base of optical pick-up device driving parts are rotationally connected; Guide roller component is anterior hinged by its deflector roll frame and pedestal; The master control sideskid of Control Component is arranged on the right side of pedestal and can slides with respect to the pedestal front and back, and the slave end slide plate of Control Component is arranged on the left side of pedestal, also can slides with respect to the pedestal front and back; Gear train is transported to guide roller component with power on the one hand and its deflector roll is rotated, slide before and after when the tooth bar engagement of the master control sideskid of its power output gear and Control Component, can making the master control sideskid on the other hand, and then the deflector roll frame of guide roller component is rotated up and down, and slide in the same way by the slave end slide plate that rotates the drive Control Component up and down of deflector roll frame and the master control sideskid of Control Component; Optical pick-up device driving parts is arranged on the pedestal by vibration-damping connector elasticity, and when the master control sideskid of Control Component and slave end slide plate are positioned at forward position, optical pick-up device driving parts then is in suspended state, the deflector roll frame of guide roller component is in full state, the platen frame also is in full state, and platen is pressed on the turntable of optical pick-up device driving parts, at this moment, can carry out the broadcast of CD; And when the master control sideskid of Control Component and slave end slide plate are positioned at rearward position, it is spacing and be in the lock state that optical pick-up device driving parts then is in locating part that the master control sideskid of Be Controlled assembly and slave end slide plate drive, the deflector roll frame of guide roller component is in the state of lifting, the platen frame also is in the state of lifting, and can make the CD on the turntable that is in optical pick-up device driving parts withdraw from movement automatically.

Fig. 1 and Fig. 2 have provided the synoptic diagram of optical pick-up device driving parts a2 by the annexation of vibration-damping connector a1 and pedestal a3 in the above-mentioned movement.Vibration-damping connector a1 has 3 groups of assemblies, and every group of assembly has shock-absorbing seat a11, antivibration pad a12, shock-absorbing stage clip a13 and Connection Block a14; Connection Block a14 is fixed on the pedestal a3; Antivibration pad a12 is the grease antivibration pad, the vertical blind hole a121 of recessed inwards formation in the middle of its underpart; Shock-absorbing seat a11 by its top bayonet lock and the wringing fit of the hole clipping on the base a21 of optical pick-up device driving parts a2 be fixed on the base a21; Antivibration pad a12 is arranged among the shock-absorbing seat a11 and by the limited block a111 of the inboard of shock-absorbing seat a11 and is stuck among the shock-absorbing seat a11; Shock-absorbing stage clip a13 is enclosed within outside the Connection Block a14 and is stuck in the bottom of shock-absorbing seat a11 on it, and the lower end is blocked by pedestal a3, thereby shock-absorbing stage clip a13 is in compressive state; The superposed joint pin of Connection Block a14 upwards inserts in the antivibration pad a12 blind hole a121 and antivibration pad a12 is clamped on the Connection Block a14.When movement was placed according to horizontal direction, the anti-vibration component of this movement can make optical pick-up device driving parts be in suspended state, optical pick-up device driving parts is carried out resiliency supported, and play the shock-absorbing effect; But the structure of this vibration-damping connector is comparatively complicated, when if movement is placed with a bigger angle of inclination according to the vertical placement or with respect to horizontal direction, because the effect of gravity can make optical pick-up device driving parts depart from original position in pedestal, thereby when its CD turnover chuck can take place; Running into the occasion that continues vibrations in addition, even if movement is placed according to horizontal direction, but also can make optical pick-up device driving parts depart from original position in pedestal, thereby can cause and read to coil discontinuous and the influence use because of jolting.

The utility model content

The purpose of this utility model be to propose a kind of simple in structure, easy to assembly, cost is lower, the shock-proof effect shock-absorbing subassembly of the movement of disk player preferably.

The technical scheme that realizes the utility model purpose is: base and 3 to 4 groups of vibration-damping connector of the utlity model has pedestal, optical pick-up device driving parts; The base of optical pick-up device driving parts is arranged on the pedestal by vibration-damping connector elasticity; Its design feature is: each vibration-damping connector all has bearing, antivibration pad and web member; Bearing is that basic configuration is the bearing of tubular, and this tubular bearing has opening up, and its bottom plate body is provided with medium pore; Bearing is fixed on the base of optical pick-up device driving parts by its upper end; Antivibration pad is that basic configuration is the resilient material antivibration pad of cylindricality, and antivibration pad has the connecting hole of the up/down perforation that is positioned at central authorities and is positioned at the annular scarfing slot in the outside, and antivibration pad is rabbeted on bearing by the medium pore elasticity of its annular scarfing slot and bearing; Web member is fixed on the pedestal, and web member passes the connecting hole of antivibration pad and antivibration pad elasticity is positioned on the pedestal, and the lower surface of antivibration pad contacts with the upper surface of the base plate of pedestal.

The base of the optical pick-up device driving parts of the shock-absorbing subassembly of the movement of above-mentioned disk player is a steel base, and bearing is fixed on the base as its embedding plastic.

Have the vertical slot that communicates with medium pore on the sidewall of the bearing of the vibration-damping connector of the shock-absorbing subassembly of the movement of above-mentioned disk player.

The outside of the antivibration pad of the shock-absorbing subassembly of the movement of above-mentioned disk player also is provided with annular damping groove, and annular damping groove is between the lower surface of antivibration pad annular scarfing slot and antivibration pad.

The antivibration pad of the shock-absorbing subassembly of the movement of above-mentioned disk player is the hollow rubber part, and its wall thickness is 0.4 millimeter to 1.0 millimeters.

The web member of the shock-absorbing subassembly of the movement of above-mentioned disk player has joint pin and band grommet screw; Joint pin has screw; The joint pin riveted and fixed is on pedestal; The joint pin of web member passes the connecting hole of antivibration pad; The band grommet screw is spun on the screw of joint pin and by its packing ring and blocks antivibration pad from top, makes it be in elastic compression, thereby its elasticity is positioned on the pedestal.

The internal cavity of the tubular bearing of the vibration-damping connector of the shock-absorbing subassembly of the movement of above-mentioned disk player is cylindrical and its diameter is 8 to 18 millimeters; The medium pore of tubular bearing is 4 to 14 millimeters for circular and its aperture; Antivibration pad is cylindrical and its diameter equals the diameter of the interior cylindrical cavity of tubular bearing; The aperture of the connecting hole of antivibration pad is 2 to 12 millimeters; The diameter of the joint pin of web member is 2 to 12 millimeters.

The diameter of the interior cylindrical cavity of the tubular bearing of the shock-absorbing subassembly of the movement of above-mentioned disk player is 12 to 16 millimeters; The aperture of the circular central bore of tubular bearing is 6 to 10 millimeters; The aperture of the connecting hole of antivibration pad is 3 to 7 millimeters; The diameter of the joint pin of web member is 3 to 7 millimeters.

The antivibration pad elasticity of the shock-absorbing subassembly of the movement of above-mentioned disk player is locked on the joint pin of web member.

The good effect that the utlity model has: (1) is in the utility model, because antivibration pad is made by resilient material and is connected on the pedestal by the web member elasticity that is fixed on the pedestal, antivibration pad is rabbeted with the tubular bearing elasticity that is fixed on the optical pick-up device driving parts again, thereby when the movement that adopts disk player of the present utility model is placed by horizontal direction, can on above-below direction, play shock-absorbing effect preferably to optical pick-up device driving parts; Antivibration pad directly contacts with the bottom surface of pedestal, and optical pick-up device driving parts is played resiliency supported and shock-absorbing effect; Contact because of antivibration pad carries out face by its lower surface with the bottom surface of pedestal again, damping effect is better; Again because of antivibration pad by be fixed on joint pin on the pedestal make its about and limited on the fore-and-aft direction, make it limited on above-below direction by joint pin and band grommet screw, even run into the occasion of continuous vibrations, except that vertical tremor and about vibrations, optical pick-up device driving parts can not move with respect to pedestal yet, thereby can be used for the bigger occasions of vibrations such as vehicle-mounted preferably.(2) when adopting antivibration pad elasticity to be locked structure on web member, if in the time of will adopting the movement of the disk player of shock-absorbing subassembly of the present utility model vertically to place, because of the supporting role of web member and the lateral elasticity supporting role of antivibration pad, also can not make the optical pick-up device driving parts of the movement of disk player depart from original position in pedestal because of the effect of gravity, even also can keep duty preferably in the occasion of vibrations.This shows, adopt the movement of disk player of the present utility model wider because of the better range of application of shock-proof effect.(3) bearing of the present utility model is the embedding plastic of the base plate of optical pick-up device driving parts, and it is simple in structure and sturdy and durable.(4) have the vertical slot that communicates with medium pore on the bearing of the present utility model, make the assembling of itself and antivibration pad more convenient.(5) of the present utility model simple in structure, cost is lower, cost is lower when antivibration pad adopts the hollow rubber part.

Description of drawings

Fig. 1 is the three-dimensional exploded view of existing CD player shock absorbing apparatus.

Fig. 2 is the three-dimensional exploded view of the CD player shock absorbing apparatus during from the beneath of Fig. 1.

Fig. 3 is a schematic perspective view of the present utility model.

Fig. 4 is the perspective exploded view of Fig. 3.

Fig. 5 is the three-dimensional exploded view during from the beneath of Fig. 4.

Fig. 6 is the synoptic diagram of the antivibration pad among Fig. 4.

Fig. 7 is the A-A cross-sectional schematic of Fig. 6.

Fig. 8 is the schematic perspective view of bearing among Fig. 4.

Fig. 9 is a B-B cross-sectional schematic among Fig. 8.

Figure 10 is arranged on schematic perspective view in the bearing for antivibration pad among Fig. 3.

The cross-sectional schematic of Figure 11 base, bearing, antivibration pad and band grommet screw mutual relationship of the pedestal among Fig. 3, joint pin, optical pick-up device driving parts when analysing and observe by the C-C direction of Figure 10.

Embodiment

(embodiment 1)

See Fig. 3 to Fig. 5, the utlity model has base 2 and 3 groups of vibration-damping connector 3 of pedestal 1, optical pick-up device driving parts, the base 2 of optical pick-up device driving parts is arranged on the pedestal 1 by vibration-damping connector 3 elasticity.

See Fig. 4 and Fig. 5, each vibration-damping connector 3 all has bearing 31, antivibration pad 32 and web member 33; Bearing 31 is that basic configuration is the bearing of tubular, and this tubular bearing 31 has opening up, and its bottom plate body is provided with medium pore 31-1; Bearing 31 is fixed on the base 2 of optical pick-up device driving parts by its upper end; Antivibration pad 32 is that basic configuration is the resilient material antivibration pad of cylindricality, antivibration pad 32 has the connecting hole 32-1 of the up/down perforation that is positioned at central authorities and is positioned at the annular scarfing slot 32-2 in the outside, and antivibration pad 32 is rabbeted on bearing 31 by the medium pore 31-1 elasticity of its annular scarfing slot 32-2 and bearing 31; Web member 33 is fixed on the pedestal 1, and web member 33 passes the connecting hole 32-1 of antivibration pad 32 and antivibration pad 32 elasticity are positioned on the pedestal 1, and the lower surface of antivibration pad 32 contacts with the upper surface of the base plate of pedestal 1.

See Fig. 3, Fig. 8, Fig. 9 and Figure 11, the base 2 of optical pick-up device driving parts is a steel base, and bearing 31 is fixed on the base 2 as its embedding plastic; Have the vertical slot 31-2 that communicates with medium pore 31-1 on the sidewall of the bearing 31 of vibration-damping connector 3.

See Fig. 3 to Fig. 7, Figure 10 and Figure 11, the outside of antivibration pad 32 also is provided with an annular damping groove 32-3, and annular damping groove 32-3 is between the lower surface of antivibration pad 32 annular scarfing slot 32-2 and antivibration pad 32; Antivibration pad 32 is 0.5 millimeter for its wall thickness of hollow rubber part.

See Fig. 3 to Fig. 5 and Figure 11, web member 33 has joint pin 331 and band grommet screw 332; Joint pin 331 has screw 331-1; Joint pin 331 riveted and fixed are on pedestal 1; The joint pin 331 of web member 33 passes the connecting hole 32-1 of antivibration pad 32; Antivibration pad 32 elasticity are locked on the joint pin 331 of web member 33; The screw 331-1 that band grommet screw 332 is spun on joint pin 331 upward and by its packing ring blocks antivibration pad 31 from top, make it be in elastic compression, thereby its elasticity is positioned on the pedestal 1.

See Fig. 3 to Figure 11, the diameter of the interior cylindrical cavity of tubular bearing 31 is 14 millimeters; The aperture of the circular central bore 31-1 of tubular bearing 31 is 7 millimeters; Antivibration pad 32 equals the diameter of the interior cylindrical cavity of tubular bearing 31 for cylindrical and its diameter; The aperture of the connecting hole 32-1 of antivibration pad 32 is 4 millimeters; The diameter of the joint pin 331 of web member 33 is 4 millimeters; The width of vertical slot 31-2 be medium pore 31-1 diameter dimension 3/4 (in the middle of other embodiment, the width of its vertical slot 31-2 can be the radius size of medium pore 31-1, or the diameter dimension of medium pore 31-1, or between the radius size of medium pore 31-1 to the arbitrary definite numerical value between the diameter dimension of medium pore 31-1).

The shock-absorbing subassembly of present embodiment can be applicable in the movement of disk player, the height of the spindle motor of the optical pick-up device driving parts of this movement does not belong to the scope of thin optical pick-up driver part greater than 12 millimeters, when the fuselage of spindle motor be positioned at optical pick-up device driving parts base 2 belows the time, the height of this fuselage part is usually greater than 8 millimeters.And the bearing 31 of shock-absorbing subassembly of the present utility model be positioned at optical pick-up device driving parts the height of the basic fuselage with spindle motor of the height of part of base 2 belows equate that the height that is positioned at bearing 31 part outward of antivibration pad 32 is usually 5 to 10 millimeters scope.Because antivibration pad 32 is made by resilient material and be connected on the pedestal 1 by web member 33 elasticity that are fixed on the pedestal 1, antivibration pad 32 is rabbeted with tubular bearing 31 elasticity that are fixed on the optical pick-up device driving parts again, thereby press horizontal direction at the movement that adopts disk player of the present utility model and place, and optical pick-up device driving parts wherein can play shock-absorbing effect preferably to optical pick-up device driving parts when being in suspended state on above-below direction; Antivibration pad 32 directly contacts with the bottom surface of pedestal 1, and optical pick-up device driving parts is played resiliency supported and shock-absorbing effect; Again because of antivibration pad 32 by be fixed on joint pin 331 on the pedestal make its about and limited on the fore-and-aft direction, make it limited on above-below direction by joint pin 331 and band grommet screw 332, running into the occasion of continuous vibrations, except that vertical tremor and about vibrations, optical pick-up device driving parts can not move with respect to pedestal yet, thereby can be used for the bigger occasions of vibrations such as vehicle-mounted preferably; Carry out face because of the lower surface of antivibration pad 32 with the bottom surface of pedestal 1 again and contact, thereby damping effect is better.

Antivibration pad 32 elasticity of present embodiment are locked on joint pin 331, if in the time of will adopting the movement of the disk player of shock-absorbing subassembly of the present utility model vertically to place, under the lateral elasticity supporting role of the support of joint pin 331 and antivibration pad 32, can not make the optical pick-up device driving parts of movement depart from original position in pedestal because of the effect of gravity, even the occasion in vibrations also can play shock-absorbing effect preferably, thereby makes optical pick-up device driving parts working properly.

(embodiment 2)

The diameter of the interior cylindrical cavity of tubular bearing 31 is 8 millimeters; The aperture of the circular central bore 31-1 of tubular bearing 31 is 4 millimeters; Antivibration pad 32 equals the diameter of the interior cylindrical cavity of tubular bearing 31 for cylindrical and its diameter; The aperture of the connecting hole 32-1 of antivibration pad 32 is 2 millimeters; The diameter of the joint pin 331 of web member 33 is 2 millimeters; Antivibration pad 32 is 1 millimeter for its wall thickness of hollow rubber part; Other structure is identical with embodiment 1.

(embodiment 3)

The diameter of the interior cylindrical cavity of tubular bearing 31 is 8 millimeters; The aperture of the circular central bore 31-1 of tubular bearing 31 is 6 millimeters; Antivibration pad 32 equals the diameter of the interior cylindrical cavity of tubular bearing 31 for cylindrical and its diameter; The aperture of the connecting hole 32-1 of antivibration pad 32 is 3.2 millimeters; The diameter of the joint pin 331 of web member 33 is 3.2 millimeters; Antivibration pad 32 is 0.4 millimeter for its wall thickness of hollow rubber part; Other structure is identical with embodiment 1.

(embodiment 4)

The diameter of the interior cylindrical cavity of tubular bearing 31 is 18 millimeters; The aperture of the circular central bore 31-1 of tubular bearing 31 is 14 millimeters; Antivibration pad 32 equals the diameter of the interior cylindrical cavity of tubular bearing 31 for cylindrical and its diameter; The aperture of the connecting hole 32-1 of antivibration pad 32 is 12 millimeters; The diameter of the joint pin 331 of web member 33 is 12 millimeters; Antivibration pad 32 is 1 millimeter for its wall thickness of hollow rubber part; Other structure is identical with embodiment 1.

(embodiment 5)

The base 2 of optical pick-up device driving parts is arranged on the pedestal 1 by 4 groups of vibration-damping connector 3 elasticity; The outside of antivibration pad 32 also is provided with four annular damping groove 32-3; Other structure is identical with embodiment 1.

Claims

1, a kind of shock-absorbing subassembly of movement of disk player has base (2) and 3 to 4 groups of vibration-damping connector (3) of pedestal (1), optical pick-up device driving parts; The base of optical pick-up device driving parts (2) is arranged on the pedestal (1) by vibration-damping connector (3) elasticity; It is characterized in that: each vibration-damping connector (3) all has bearing (31), antivibration pad (32) and web member (33); Bearing (31) is that basic configuration is the bearing of tubular, and this tubular bearing (31) has opening up, and its bottom plate body is provided with medium pore (31-1); Bearing (31) is fixed on the base (2) of optical pick-up device driving parts by its upper end; Antivibration pad (32) is that basic configuration is the resilient material antivibration pad of cylindricality, antivibration pad (32) has the connecting hole (32-1) of the up/down perforation that is positioned at central authorities and is positioned at the annular scarfing slot (32-2) in the outside, and antivibration pad (32) is rabbeted on bearing (31) by medium pore (31-1) elasticity of its annular scarfing slot (32-2) and bearing (31); Web member (33) is fixed on the pedestal (1), and web member (33) passes the connecting hole (32-1) of antivibration pad (32) and antivibration pad (32) elasticity is positioned on the pedestal (1), and the lower surface of antivibration pad (32) contacts with the upper surface of the base plate of pedestal (1).

2, the shock-absorbing subassembly of the movement of disk player according to claim 1 is characterized in that: the base of optical pick-up device driving parts (2) is a steel base, and bearing (31) is fixed on the base (2) as its embedding plastic.

3, the shock-absorbing subassembly of the movement of disk player according to claim 1 is characterized in that: have the vertical slot (31-2) that communicates with medium pore (31-1) on the sidewall of the bearing (31) of vibration-damping connector (3).

4, the shock-absorbing subassembly of the movement of disk player according to claim 1, it is characterized in that: the outside of antivibration pad (32) also is provided with annular damping groove (32-3), and annular damping groove (32-3) is positioned between the lower surface of the annular scarfing slot (32-2) of antivibration pad (32) and antivibration pad (32).

5, the shock-absorbing subassembly of the movement of disk player according to claim 4 is characterized in that: antivibration pad (32) is the hollow rubber part.

6, the shock-absorbing subassembly of the movement of disk player according to claim 5 is characterized in that: the wall thickness of antivibration pad (32) is 0.4 millimeter to 1.0 millimeters.

7, according to the shock-absorbing subassembly of the movement of the described disk player of one of claim 1 to 6, it is characterized in that: web member (33) has joint pin (331) and band grommet screw (332); Joint pin (331) has screw (331-1); Joint pin (331) riveted and fixed is on pedestal (1); The joint pin (331) of web member (33) passes the connecting hole (32-1) of antivibration pad (32); The screw (331-1) that band grommet screw (332) is spun on joint pin (331) upward and by its packing ring blocks antivibration pad (31) from top, make it be in elastic compression, thereby its elasticity is positioned on the pedestal (1).

8, the shock-absorbing subassembly of the movement of disk player according to claim 7 is characterized in that: the internal cavity of the tubular bearing (31) of vibration-damping connector (3) is cylindrical and its diameter is 8 to 18 millimeters; The medium pore (31-1) of tubular bearing (31) is 4 to 14 millimeters for circular and its aperture; Antivibration pad (32) equals the diameter of the interior cylindrical cavity of tubular bearing (31) for cylindrical and its diameter; The aperture of the connecting hole (32-1) of antivibration pad (32) is 2 to 12 millimeters; The diameter of the joint pin (331) of web member (33) is 2 to 12 millimeters.

9, the shock-absorbing subassembly of the movement of disk player according to claim 8 is characterized in that: the diameter of the interior cylindrical cavity of tubular bearing (31) is 12 to 16 millimeters; The aperture of the circular central bore (31-1) of tubular bearing (31) is 6 to 10 millimeters; The aperture of the connecting hole (32-1) of antivibration pad (32) is 3 to 7 millimeters; The diameter of the joint pin (331) of web member (33) is 3 to 7 millimeters.

10, the shock-absorbing subassembly of the movement of disk player according to claim 7 is characterized in that: antivibration pad (32) elasticity is locked on the joint pin (331) of web member (33).