1. A bearing device for a beautyhealth roller having a grippable main unit and a roller arranged at an end portion of the main unit, the bearing device rotatably supporting the roller on a support shaft provided to an end portion of the main unit,
the bearing device characterized in comprising: a radial bearing into which the support shaft is fitted, the radial bearing rotatably supporting the roller on the support shaft;
a thrust bearing arranged toward one end face of the radial bearing; and a preload-applying member interposed between the radial bearing and the thrust bearing; and
each of the radial bearing and the thrust bearing is slider bearing obtained by being molded from a resin composition.
2. The bearing device for a beautyhealth roller of claim 1, characterized in that the radial bearing is electroconductive.
3. The bearing device for a beautyhealth roller of claim 1, characterized in that the preload-applying member is an elastic ring comprising a rubber or an elastomer.
4. The bearing device for a beautyhealth roller of claim 3; characterized in that the rubber or elastomer is at least one material selected from among silicone rubber, ethylene-propylene rubber, acrylonitrile-butadiene rubber, and fluororubber.
5. The bearing device for a beautyhealth roller of claim 3, characterized in that the elastic ring is configured so as to be capable of elastically deforming into an outwardly flared shape.
6. The bearing device for a beautyhealth roller of claim 5, characterized in that the elastic ring comprises: a cylindrical portion fitted to a sleeve portion of the radial bearing, and a flared portion in contact with the thrust bearing.
7. The bearing device for a beautyhealth roller of claim 6, characterized in that the boundary portion between the cylindrical portion and the flared portion is thinner than the cylindrical portion.
8. The bearing device for a beautyhealth roller of claim 1, characterized in that the resin composition used in the molding of at least one of the radial bearing and the thrust bearing is a composition that includes a lubricity improver.
9. The bearing device for a beautyhealth roller of claim 8, characterized in that the lubricity improver is at least one material selected from among carbon, solid lubricants, waxes, and lubricating oils.
10. The bearing device for a beautyhealth roller of claim 1, characterized in that the radial bearing is an article obtained by injection-molding the resin composition for molding the radial bearing.
11. The bearing device for a beautyhealth roller of claim 1, characterized in that the base resin of the resin composition is at least one synthetic resin selected from among polyacetal resin, polyphenylene sulfide resin, polyamide resin, polyphenylene oxide resin, and polyethylene resin.
12. The bearing device for a beautyhealth roller of claim 1, characterized in that a gap formed in the axial direction is provided on at least one surface selected from among an inner peripheral surface of the roller and an outer peripheral surface of the radial bearing.
13. The bearing device for a beautyhealth roller of claim 1, characterized in that the radial bearing slides on the support shaft and rotates in synchronization with the roller.
14. The bearing device for a beautyhealth roller of claim 13, characterized in that an axially oriented, rib-shaped projection is formed on the inner peripheral surface of the roller; a fitting groove into which the rib-shaped projection is fitted is formed on the outer peripheral surface of the radial bearing; and the radial bearing rotates in synchronization with the roller by the fitting of the rib-shaped projection and the fitting groove.
15. The bearing device for a beautyhealth roller of claim 13, characterized in that a member separate from the roller is provided on the outer peripheral surface of the roller; a leg portion of the separate member projects from the inner peripheral surface of the roller through a hole portion formed in the surface of the roller; a fitting groove into which the projecting portion of the leg portion of the separate member is fitted is formed in the outer peripheral surface of the radial bearing; and the radial bearing rotates in synchronization with the roller by the fitting of the projection portion and the fitting groove.
16. A beautyhealth roller having a grippable main unit, a roller arranged at an end portion of the main unit, and a bearing device for rotatably supporting the roller on a support shaft provided at the end portion of the main unit, the beautyhealth roller characterized in that the bearing device is the bearing device of claim 1.
17. The beautyhealth roller of claim 16, characterized in that a surface of the roller is metal plated, and the support shaft and the roller are electrically energized via the bearing device.
18. The beautyhealth roller of claim 16, characterized in that a plurality of the bearing devices are provided in the interior of the roller in the axial direction.
19. The beautyhealth roller of claim 16, characterized in that the interior of the roller does not have a waterproof structure.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A universal media disc cleaningrepairing device comprising:
(a) a main body having a carrier board section, a receptacle being formed on the carrier board section for snugly receiving a universal media disc;
(b) a driving motor mounted in the main body;
(c) a disc driving mechanism rotationally drivable by the driving motor, the disc driving mechanism having a disc driving tray upward protruding from the carrier board section for correspondingly fitting into the center of lower side of the universal media disc placed in the carrier board section so as to rotationally drive the universal media disc;
(d) a cleaningrepairing tray pivotally mounted on the main body and rotationally drivable by the driving motor, the cleaningrepairing tray being adapted to contact with lower side of a readwrite window of the universal media disc placed in the carrier board section; and
(e) a cam pivotally mounted in the main body and drivable by the driving motor, whereby after the cam is rotated by a certain angle, a switch is driven to power off the driving motor.
2. The universal media disc cleaningrepairing device as claimed in claim 1, wherein the main body includes: a base seat having a cell box for accommodating cells therein for providing power for the driving motor; a middle seat body overlaid on the base seat, a receiving chamber being defined between the base seat and the middle seat body, in which the driving motor and other components are mounted, the carrier board section being formed on upper side of the middle seat body, the receptacle being formed on the carrier board section, the receptacle having a shape corresponding to the shape of the universal media disc, a finger dent being formed on outer circumference of the receptacle; and a cover body pivotally connected with the middle seat body, the cover body having a latch member, whereby when the cover body is closed onto the middle seat body, the latch member is latched with the middle seat body.
3. The universal media disc cleaningrepairing device as claimed in claim 2, wherein the middle seat body has a resilient arresting hook, whereby when the cover body is closed onto the middle seat body, the latch member of the cover body is latched with the arresting hook.
4. The universal media disc cleaningrepairing device as claimed in claim 2, wherein the middle seat body has a latch hole, whereby when the cover body is closed onto the middle seat body, the latch member of the cover body is latched in the latch hole.
5. The universal media disc cleaningrepairing device as claimed in claim 2, wherein the main body further includes a torque spring having two ends respectively abutting against the cover body and the middle seat body, the torque spring always exerting a lifting force onto the cover body, whereby after the latch member of the cover body is unlatched from the middle seat body, the cover body can automatically bound upward.
6. The universal media disc cleaningrepairing device as claimed in claim 2, wherein the cover body has a sleeve pivotally mounted between a pair of pivot seats of the middle seat body, the torque spring and a damping shaft being axially sequentially fitted in the sleeve, a first end of the torque spring being hooked with a first end of the sleeve, a second end of the torque spring being hooked with a first end of the damping shaft, a second end of the damping shaft being axially inserted in the pivot seat of the middle seat body, a high frictional coefficient damping oil being filled between the damping shaft and the sleeve, whereby after the latch member of the cover body is unlatched from the middle seat body, the cover body can gradually automatically bound upward.
7. The universal media disc cleaningrepairing device as claimed in claim 2, wherein a press member is fixedly disposed under a bottom of the cover body, whereby when the cover body is closed onto the middle seat body, the press member presses down the universal media disc placed on the carrier board section of the middle seat body.
8. The universal media disc cleaningrepairing device as claimed in claim 1, wherein a rotary shaft of the disc driving tray is pivotally connected in the main body, a gear section being arranged along outer circumference of the rotary shaft, the gear section being directly engaged with a worm disposed on a rotary shaft of the driving motor.
9. The universal media disc cleaningrepairing device as claimed in claim 1, wherein a rotary shaft of the disc driving tray is pivotally connected in the main body, a gear section being arranged along outer circumference of the rotary shaft, a gear set composed of multiple gears being disposed between the gear section of the disc driving tray and a worm disposed on a rotary shaft of the driving motor.
10. The universal media disc cleaningrepairing device as claimed in claim 1, wherein a rotary shaft of the cleaningrepairing tray is pivotally connected in the main body, a gear section being arranged along outer circumference of the rotary shaft, the gear section being directly engaged with a worm disposed on a rotary shaft of the driving motor.
11. The universal media disc cleaningrepairing device as claimed in claim 1, wherein a rotary shaft of the cleaningrepairing tray is pivotally connected in the main body, a gear section being arranged along outer circumference of the rotary shaft, a gear set composed of multiple gears being disposed between the gear section of the cleaningrepairing tray and a worm disposed on a rotary shaft of the driving motor.
12. The universal media disc cleaningrepairing device as claimed in claim 1, wherein a rotary shaft of the cam is pivotally connected in the main body, a gear section being arranged along outer circumference of the rotary shaft, the gear section being engaged with a gear rotationally drivable by the driving motor.
13. The universal media disc cleaningrepairing device as claimed in claim 2, wherein the cover body further includes a tongue plate, whereby after the cover body is lifted by a certain angle, the tongue plate drives and switches off a switch to power off the driving motor.