Claims
- 1. An apparatus in combination with a memory cartridge and having a main body defining therein a path of travel of said memory cartridge in at least an insertion direction and a discharge direction, said apparatus further including a device for unloading said memory cartridge, said device for unloading said memory cartridge comprising:
- a cartridge engagement member arranged within said main body of the apparatus and operative to move in said insertion direction and said discharge direction of said memory cartridge, said cartridge engagement member including an engagement portion operative to engage said memory cartridge at least when said cartridge engagement member is moved in said cartridge discharge direction;
- a single lever including one end portion serving as a point of action thereof operative to engage with said cartridge engagement member and an other end portion serving as a point of force thereof on which a force is applied;
- a first fulcrum disposed at a position where a first leverage is obtained, and serving as a fulcrum of rotation of said single lever while said single lever is present within a range of rotation where said memory cartridge is initially pulled out; and
- a second fulcrum disposed at a position wherein a second, smaller leverage than said first leverage is obtained, and serving as a fulcrum of rotation of said single lever when said single lever is further rotated beyond said range of rotation.
- 2. An apparatus in combination with a memory cartridge and having a main body defining therein a path of travel of said memory cartridge in at least an insertion direction and a discharge direction, said apparatus further including a device for unloading said memory cartridge, said device for unloading said memory cartridge comprising:
- a cartridge engagement member arranged within said main body of the apparatus and operative to move in said insertion direction and said discharge direction of said memory cartridge, said cartridge engagement member including a memory cartridge engagement portion operative to engage said memory cartridge at least when said cartridge engagement member is moved in said cartridge discharge direction;
- a single lever arranged rotatably within said apparatus main body by means of a fulcrum; and
- first and second lever engagement portions respectively provided in said cartridge engagement member and operative to engage with said single lever, wherein said first lever engagement portion is disposed at a position where a first leverage is obtained and is operative to engage with said cartridge engagement member while said single lever is present within a range of rotation where said memory cartridge is initially pulled out, and said second lever engagement portion is disposed at a position where a second, smaller leverage than said first leverage is obtained and is operative to engage with said cartridge engagement member when said single lever is further rotated beyond said range of rotation.
- 3. An apparatus in combination with a memory cartridge and having a main body defining therein a path of travel of said memory cartridge in at least an insertion direction and a discharge direction, said apparatus further including a device for unloading said memory cartridge, said device for unloading said memory cartridge comprising:
- a cartridge engagement member arranged within said main body and operative to move in said insertion direction and said discharge direction of said memory cartridge, said engagement member including an engagement portion operative to engage said memory cartridge at least when said cartridge engagement member is moved in said cartridge discharge direction; and
- a leverage mechanism operative to move said cartridge engagement member and to decreasingly change a leverage thereof according to the movements of the cartridge engagement member in said discharge direction.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-047052 |
Feb 1988 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 715,891 filed Jun. 19, 1991, now U.S. Pat. No. 5,179,871, which is a continuation of application Ser. No. 314,744, filed on Feb. 24, 1989, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (5)
Number |
Date |
Country |
58304 |
Jan 1975 |
AUX |
2912117 |
Oct 1979 |
DEX |
2919634 |
Nov 1979 |
DEX |
175239 |
Sep 1985 |
JPX |
2181880 |
Apr 1987 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Nikkei Electronics Publication of Dec. 16, 1985. |
Continuations (2)
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Number |
Date |
Country |
Parent |
715891 |
Jun 1991 |
|
Parent |
314744 |
Feb 1989 |
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