Claims
- 1. A magnetic tape cassette which is loaded onto a cassette auto delivery apparatus for accommodating a plurality of magnetic tape cassettes and for sequentially delivering the magnetic tape cassette by a delivery mechanism, comprising:a body case; a first recess formed in a top surface of said body case for retaining a depression engagement member having a spring and a roller provided in said cassette auto delivery apparatus for positioning and stopping; a front lid provided swingably at a front face of said body case for opening and closing an opening for drawing out a magnetic tape; a slider disposed in a lower surface of said body case and slidable in backward and forward directions; a rib for reducing a resistance when said roller passes through a gap between the top surface of the body case and the front lid, said rib being provided at a position corresponding to the first recess and on a side of said front lid in the top surface of said body case; and a second recess corresponding to a portion of said rib at a position of said front lid corresponding to the rib.
- 2. The magnetic tape cassette according to claim 1, wherein a width of said rib is substantially identical to a width of said first recess.
- 3. The magnetic tape cassette according to claim 1, wherein a height of said rib is in the range of from 0.2 mm to 0.7 mm.
- 4. The magnetic tape cassette according to claim 1, wherein a width of said rib is wider than a width of said roller.
- 5. The magnetic tape cassette according to claim 1, wherein a first taper surface is formed in an upper wall portion of said front lid toward said second recess of said front lid.
- 6. The magnetic tape cassette according to claim 5, wherein a slant angle of said first taper surface is in the range of from 30 degrees to 60 degrees.
- 7. The magnetic tape cassette according to claim 6, wherein said slant angle of said first taper surface is at 45 degrees.
- 8. The magnetic tape cassette according to claim 1, wherein a second taper surface is formed at an outlet side of said first recess.
- 9. The magnetic tape cassette according to claim 8, wherein a slant angle of said second taper surface is in the range of from 30 degrees to 60 degrees.
- 10. The magnetic tape cassette according to claim 9, wherein said slant angle of said second taper surface is at 45 degrees.
- 11. The magnetic tape cassette according to claim 1, wherein an upper wall portion of said front lid at a side of said first recess is machined rough.
- 12. The magnetic tape cassette according to claim 1, wherein a width of said second recess is substantially identical to a width of said first recess and wider than a width of said rib.
- 13. The magnetic tape cassette according to claim 1, wherein widths of said rib and said second recess are substantially identical to a width of said first recess.
- 14. The magnetic tape cassette according to claim 1, wherein said second recess corresponds to a convex portion of said rib.
Priority Claims (3)
Number |
Date |
Country |
Kind |
11-352982 |
Dec 1999 |
JP |
|
11-366603 |
Dec 1999 |
JP |
|
2000-006394 |
Jan 2000 |
JP |
|
Parent Case Info
This is a divisional of application Ser. No. 09/734,689 filed Dec. 13, 2000; the disclosure of which is incorporated herein by reference.
US Referenced Citations (7)
Foreign Referenced Citations (6)
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EP |
07-262740 |
Oct 1995 |
JP |
2001-110163 |
Apr 2001 |
JP |
2001-202739 |
Jul 2001 |
JP |