OPTICAL PICK-UP UNIT AND OPTICAL PICK-UP USED IN THE OPTICAL PICK-UP UNIT
An optical pick-up unit includes an optical pick-up for recording reproducing data to and from the optical disc, the optical pick-up being provided on a base frame so that the optical pick-up can move in a predetermined radial direction of the loaded optical disc; a stepping motor provided on the ba...
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| creator | KIKUCHI ATSUSHI TAKAHASHI MAKOTO SATO KEIICHI KIRII ATSUSHI |
| description | An optical pick-up unit includes an optical pick-up for recording reproducing data to and from the optical disc, the optical pick-up being provided on a base frame so that the optical pick-up can move in a predetermined radial direction of the loaded optical disc; a stepping motor provided on the base frame; a lead screw rotated by the stepping motor and provided in parallel with the moving direction of the optical pick-up; first and second guide rods arranged on the base frame in parallel with the lead screw through a predetermined spacing there between for guiding an optical pick-up base of the optical pick-up in the moving direction of the pick-up; a rack spring having one end which is fixedly mounted on the pick-up base by a screw and the other end which is provided with an engaging portion which is in engagement with a groove of the lead screw so as to move the pick-up base in the moving direction of the pick-up in accordance with the rotation of the lead screw; and an abutment portion provided on the pick-up base so as to abut on the second guide rod, wherein the rack spring is configured so as to forcedly rotate the pick-up base about the first guide rod with its reaction force so that the abutment portion of the pick-up base abuts on the second guide rod with a predetermined load. |
| format | Patent |
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a stepping motor provided on the base frame; a lead screw rotated by the stepping motor and provided in parallel with the moving direction of the optical pick-up; first and second guide rods arranged on the base frame in parallel with the lead screw through a predetermined spacing there between for guiding an optical pick-up base of the optical pick-up in the moving direction of the pick-up; a rack spring having one end which is fixedly mounted on the pick-up base by a screw and the other end which is provided with an engaging portion which is in engagement with a groove of the lead screw so as to move the pick-up base in the moving direction of the pick-up in accordance with the rotation of the lead screw; and an abutment portion provided on the pick-up base so as to abut on the second guide rod, wherein the rack spring is configured so as to forcedly rotate the pick-up base about the first guide rod with its reaction force so that the abutment portion of the pick-up base abuts on the second guide rod with a predetermined load.</description><language>eng</language><subject>INFORMATION STORAGE ; 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TAKAHASHI MAKOTO ; SATO KEIICHI ; KIRII ATSUSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2008163277A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2008</creationdate><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>KIKUCHI ATSUSHI</creatorcontrib><creatorcontrib>TAKAHASHI MAKOTO</creatorcontrib><creatorcontrib>SATO KEIICHI</creatorcontrib><creatorcontrib>KIRII ATSUSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIKUCHI ATSUSHI</au><au>TAKAHASHI MAKOTO</au><au>SATO KEIICHI</au><au>KIRII ATSUSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OPTICAL PICK-UP UNIT AND OPTICAL PICK-UP USED IN THE OPTICAL PICK-UP UNIT</title><date>2008-07-03</date><risdate>2008</risdate><abstract>An optical pick-up unit includes an optical pick-up for recording reproducing data to and from the optical disc, the optical pick-up being provided on a base frame so that the optical pick-up can move in a predetermined radial direction of the loaded optical disc; a stepping motor provided on the base frame; a lead screw rotated by the stepping motor and provided in parallel with the moving direction of the optical pick-up; first and second guide rods arranged on the base frame in parallel with the lead screw through a predetermined spacing there between for guiding an optical pick-up base of the optical pick-up in the moving direction of the pick-up; a rack spring having one end which is fixedly mounted on the pick-up base by a screw and the other end which is provided with an engaging portion which is in engagement with a groove of the lead screw so as to move the pick-up base in the moving direction of the pick-up in accordance with the rotation of the lead screw; and an abutment portion provided on the pick-up base so as to abut on the second guide rod, wherein the rack spring is configured so as to forcedly rotate the pick-up base about the first guide rod with its reaction force so that the abutment portion of the pick-up base abuts on the second guide rod with a predetermined load.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
| title | OPTICAL PICK-UP UNIT AND OPTICAL PICK-UP USED IN THE OPTICAL PICK-UP UNIT |
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