Casette reel holding mechanism and the recording apparatus using the aforesaid cassette

• US 5,667,318 A
• Filed: 04/26/1995
• Issued: 09/16/1997
• Est. Priority Date: 09/13/1990
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Sugiyama, Toshiro, Tanno, Koichi
• Primary Examiner(s): WIECKING, DAVID
• Application Number:
  US08/429,028
• Time in Patent Office: 874 Days
• Field of Search: 400/208, 400/234, 400/242, 400/246, 242/338, 242/338.1, 242/338.2, 242/343, 242/343.1, 242/343.2
• US Class Current: 400/208
• CPC Class Codes: B41J 17/32 Detachable carriers or holders for impression-transfer material mechanism
• CPC Class Codes: B41J 33/52 Braking devices therefor

Abstract

A cassette which can be molted in a recording apparatus includes a first winding member for winding one side of a strip member, a second winding member for winding the other side of the strip member, and a frame for rotatively housing the first and second winding members. A first regulating member regulates the rotation of the first winding member when the cassette is removed from the recording apparatus, and a second regulating member regulates the rotation of the second winding member when the cassette is removed from the recording apparatus. With the simple structure enabling the cassette to be easily assembled, it is possible to prevent the idle run of the winding members as well as the slacking of the strip member.

Claims

1. A recording apparatus for recording by transferring ink from an ink sheet, said apparatus comprising:

a recording head for effecting heat to ink of the ink sheet;

a mounting portion;

an ink sheet cassette mountable on said mounting portion, said ink sheet cassette having

first and second reel members for winding an ink sheet, with said first reel member winding one end of the ink sheet and said second reel member winding a second end of the ink sheet;

a housing for rotatably containing said first and second reel members such that said reel members are displaceable in an axial direction;

a limit portion for engaging an outer periphery of said reel members at a contact point and pressing said reel members in a direction toward the axial direction, said limit portion preventing the rotation of said reel members at substantially the point of contact on said reel members regardless of the rotational position of said reel members; and

press means for applying a first pressing force to said reel members in the axial direction to contact said reel members against said limit portion, wherein

when said housing is mounted on said recording apparatus said reel members are displaced by a second pressing force which is greater than the first pressing force by said press means and in an opposite axial direction so that said reel members are released from contact with said limit portion and rotatable, and when said housing is removed from said recording apparatus said reel members are displaced by the first pressing force by said press means so that said reel members are in contact with said limit portion and prevented from rotating; and

biasing means provided on said mounting portion to apply to said housing of said ink sheet cassette a press force which exceeds the press force by said press means in an opposite direction.

2. A recording apparatus for recording by transferring ink from an ink sheet, said apparatus comprising:

a recording head for effecting heat to ink of the ink sheet;

a mounting portion;

an ink sheet cassette mountable on said mounting portion, said ink sheet cassette having

first and second reel members for winding an ink sheet, with said first reel member winding one end of the ink sheet and said second reel member winding a second end of the ink sheet;

a housing for rotatably containing said first and second reel members such that said reel members are displaceable in an axial direction;

a limit portion for engaging an outer periphery of said reel members at a contact point and pressing said reel members in a direction toward the axial direction, said limit portion preventing the rotation of said reel members at substantially the point of contact on said reel members regardless of the rotational position of said reel members; and

press means for applying a first pressing force to said reel members in the axial direction to contact said reel members against said limit portion, wherein

said reel members are displaceable by a second pressing force which is greater than the first pressing force in an opposite axial direction so that said reel members are released from contact with said limit portion and rotatable; and

biasing means provided on said mounting portion to apply to said housing of said ink sheet cassette the second pressing force which exceeds the first pressing force applied by said press means in an opposite axial direction.

3. An ink sheet cassette mountable on a recording apparatus for recording by transferring ink from an ink sheet, said cassette comprising:

first and second reel members for winding an ink sheet, with said first reel member winding one end of the ink sheet and said second reel member winding a second end of the ink sheet;

a housing for rotatably containing said first and second reel members such that said reel members are displaceable in an axial direction;

a limit portion for engaging an outer periphery of said reel members at a contact point and pressing said reel members in a direction toward the axial direction, said limit portion preventing the rotation of said reel members at substantially the point of contact on said reel members regardless of the rotational position of said reel members; and

press means for applying a first pressing force to said reel members in the axial direction to contact said reel members against said limit portion, wherein

when said housing is mounted on the recording apparatus said reel members are displaced by a second pressing force that is greater than the first pressing force in an opposite axial direction so that said reel members are released from contact with said limit portion and rotatable, and when said housing is removed from the recording apparatus said reel members are displaced by the first pressing force by said press means so that said reel members contact said limit portion and are prevented from rotating.

4. An ink sheet cassette mountable on a recording apparatus for recording by transferring ink from an ink sheet, said cassette comprising:

first and second reel members for winding an ink sheet, with said first reel member winding one end of the ink sheet and said second reel member winding a second end of the ink sheet;

a housing for rotatably containing said first and second reel members such that said reel members are displaceable in an axial direction;

a limit portion for engaging an outer periphery of said reel members at a contact point and pressing said reel members in a direction toward the axial direction, said limit portion preventing the rotation of said reel members at substantially the point of contact on said reel members regardless of the rotational position of said reel members; and

press means for applying a first pressing force to said reel members in the axial direction to contact said reel members against said limit portion, wherein

said reel members are displaceable by a second pressing force greater than the first pressing force in an opposite axial direction so that said reel members are released from contact with said limit portion and are rotatable.