Claims
- 1. A sheet finisher comprising:
- a tray;
- sheet folding means for producing a plurality of sheet folding modes including a non-folding mode;
- sheet discharge means for discharging a sheet onto said tray; and
- position control means for changing the level of a portion of said tray such that the distance between said sheet discharge means and said portion of said tray varies in accordance with the folding mode being produced by said sheet folding means;
- wherein said position control means moves said portion of said tray such that the distance between said tray and said sheet discharge means is reduced during said non-folding mode;
- and wherein said position control means comprises:
- a tray main body arranged to be slanted at a predetermined angle;
- a flap section pivotally connected to said main tray body;
- a door section pivotally connected to said flap section;
- a main wall, said main wall being pivotally mounted on said tray main body by a bracket;
- first moving means for moving said flap section and said door section to a first position in which said flat section and said door section are in a substantially horizontally aligned state; and
- second moving means for moving said flap section and said door section to a second position in which said slanted tray main body and said flap section are maintained at the same angle and said door section is maintained substantially horizontally.
- 2. A sheet finisher as claimed in claim 1, wherein said first moving means comprises:
- a first side wall, said first side wall being provided on said tray main body and having an edge;
- a second side wall, said second side wall being formed on said flap section and having an edge which is engageable with the edge on said first side wall;
- first biasing means, extended between said bracket and said flap section, for biasing said flap section such that the edge of said first side wall is induced to move toward engagement with the edge of said seocnd side wall formed on said flat section; and
- a tongue portion formed on the leading edge of said flap section, said tongue portion preventing the relative rotation between said flap section and said door section when they are arranged to define a common flat surface.
- 3. A sheet finisher as claimed in claim 2 wherein said second moving means comprises:
- electromagnetic drive means, disposed on said tray main body, for moving said flap section against the bias of said first biasing means;
- an extension portion arranged to extend from the edge of said second side wall and to engage the upper surface of said door section when said door section and said flat section assume a predetermined angle with respect to one another; and
- second biasing means, extended between said bracket and said door section, for biasing said door section in a direction to engage said extension portion.
- 4. A sheet finisher as claimed in claim 1, wherein said main wall is formed with a plurality of apertures through which air can be vented.
Priority Claims (7)
Number |
Date |
Country |
Kind |
63-173884 |
Jul 1988 |
JPX |
|
63-173885 |
Jul 1988 |
JPX |
|
63-173886 |
Jul 1988 |
JPX |
|
63-173887 |
Jul 1988 |
JPX |
|
63-173888 |
Jul 1988 |
JPX |
|
63-173889 |
Jul 1988 |
JPX |
|
63-173890 |
Jul 1988 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/378,051 filed Jul. 11, 1989, now U.S. Pat. No. 5,020,785.
US Referenced Citations (6)
Foreign Referenced Citations (14)
Number |
Date |
Country |
0033835 |
Aug 1981 |
EPX |
0113122 |
Jul 1984 |
EPX |
0266739 |
May 1988 |
EPX |
69346 |
Apr 1984 |
JPX |
60-15357 |
Jan 1985 |
JPX |
60-122662 |
Jul 1985 |
JPX |
60-232372 |
Nov 1985 |
JPX |
211272 |
Sep 1986 |
JPX |
217476 |
Sep 1986 |
JPX |
62-119069 |
May 1987 |
JPX |
62-244869 |
Oct 1987 |
JPX |
62-269852 |
Nov 1987 |
JPX |
63-41350 |
Feb 1988 |
JPX |
61183055 |
Oct 1988 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Japanese Patent Abstract, JP-A-61 183055, Fuji Xerox Co., Ltd., Aug. 15, 1986. |
Japanese Patent Abstract, JP-A-60 015 357, Fuji Xerox K.K., Jan. 26, 1985. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
378051 |
Jul 1989 |
|