Claims
- 1. A structure of a slider for supporting a shutter provided slidably on a case for accommodating a disk to open and close a head hole for receiving a reading/writing head and a spindle hole for receiving a spindle hole for rotating the disk, the shutter being urged by a spring member in its closing direction, the slider being slid in a guide portion provided on a front end of the case, which comprises:
- a shutter support portion for supporting the shutter; and
- a pair of engaging projection bodies respectively provided at front and rear portions of the shutter support portion, the engaging projection bodies being pushed into the guide portion, each engaging projection being provided with a dividing groove to permit each engaging projection to shrink in its widthwise direction thereby to enable the slider to be pushed into the guide portion.
- 2. A structure of the slider according to claim 1, wherein the slider has an extended portion extended from a front end of the shutter support portion, the engaging projection bodies comprising a first engaging projection body provided on a rear end of the shutter support portion, and a second engaging projection body provided at front end of the extended portion, the guide portion having guide rails projected inwardly of the case, each engaging projection body passing over the guide rails deeply into the guide protion.
- 3. A structure of the slider according to claim 1, wherein the slider is made of synthetic resin such as polyacetal to give an elasticity to the slider.
- 4. A structure of the slider according to claim 1, wherein the slider holds a shutter which has two closing plates coming close to each other.
- 5. A structure of the slider according to claim 1, wherein the first engaging projection body has a pair of projection formed at a bottom face of the rear portion of the shutter support portion so as to be extended rearwardly to be respectively engaged with a pair of guide grooves formed on inner walls of the guide portion, the guide grooves being formed on the inner walls of the guide portion more inwardly than the guide rails so that the first engaging projection body is engaged with the guide grooves passing over the guide rails, the diving groove being formed between the pair of projections so as to also function to receive one arm of the spring member, the second engaging projection body having a pair of wings projection in lateral direction of the extended portion to contact a guide surface formed at the front edge of the case, and a guide foot suspended from the front end of the extended portion so as to be extended forwardly more than the front edge of the extended portion, the guide foot being divided by the dividing groove so as to be elastically deformed.
- 6. A structure of the slider according to claim 5, wherein the pair of projections of the first engaging projection body and the guide foot have inclined surfaces, respectively, to facilitate each engaging projection body to pass over the guide rails deeply into the guide portion.
- 7. A structure of the slider according to claim 5, wherein one of the pair of projections of the first engaging projection body for engaging with the guide grooves is formed shorter than the other one.
- 8. A structure of the slider according to claim 5, wherein the dividing groove functions as a groove for receiving one arm of the spring member, a projection being formed at a deep position of the dividing groove for preventing the one arm from coming out therefrom, an opening being formed for receiving a bent distal end of the one arm of the spring member.
- 9. A structure of the slider according to claim 5, wherein the guide foot is formed that its upper surface is located under a bottom wall of a dropping recess into which a drive pin is dropped when the shutter takes its opening position, a rear end portion of its lower surface being cut away to prevent its contact with a surrounding wall formed in the case for holding a periphery of the disk accommodated therein.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2-013181[U] |
Feb 1990 |
JPX |
|
2-015465[U]JPX |
Feb 1990 |
JPX |
|
Parent Case Info
This is a divisional of co-pending application Ser. No. 08/116,807 filed on Sep. 3, 1993, now U.S. Pat. No. 5,325,257, which is a continuation of application Ser. No. 07,654,897, filed Feb. 13, 1991.
US Referenced Citations (2)
Divisions (1)
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Number |
Date |
Country |
Parent |
116807 |
Sep 1993 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
654897 |
Feb 1992 |
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