A sheet conveying device, that can be included in an image forming apparatus, includes a first conveying unit to convey a sheet in a first direction, a second conveying unit disposed on a downstream side of the first conveying unit to convey the sheet in a second direction, and a first path formed between the first and second conveying units. At least the second conveying unit has a holding section to hold and convey the sheet. The sheet conveying device further includes a belt conveying unit disposed along an outer side of the first path and includes a belt to convey the sheet toward the holding section. The belt is stretched around a first belt holding and rotating member and a second belt holding and rotating member disposed on an upstream side of the second conveying unit in the second direction.
Drawings
Claims21
A sheet conveying device, comprising:
a first conveying unit configured to convey a sheet in a first sheet conveying direction;
a second conveying unit disposed on a downstream side of the first conveying unit in the first sheet conveying direction and configured to convey the sheet conveyed by the first conveying unit in a second sheet conveying direction different from the first sheet conveying direction,
at least the second conveying unit of the first and second conveying unit including a holding and conveying unit with a holding section to hold and convey the sheet;
a first sheet conveying path formed between the first conveying unit and the second conveying unit;
and
a belt conveying unit disposed along an outer side of the first sheet conveying path and configured to include a belt to convey the sheet toward the holding section of the second conveying unit,
wherein the belt conveying unit includes:
a first belt holding and rotating member disposed facing the holding section;
and
a second belt holding and rotating member disposed facing the first belt holding and rotating member and disposed on an upstream side of the second conveying unit in the second sheet conveying direction, and
the belt being wound between the first and second belt holding and rotating members,
wherein the belt conveying unit further includes a first pressing member configured to apply a force on a first pulley shaft via a bearing member to press the belt conveying unit in such a direction that the belt constantly press contacts with the first belt holding and rotating member toward the first sheet conveying path, and a second pressing member configured to apply a force on a second pulley shaft via a belt supporting member to press the belt conveying unit in such a direction that the belt constantly press contacts with the second belt holding and rotating member toward the first sheet conveying path, and
wherein the belt supporting member is rotatably attached to the first pulley shaft and rotatably moves about the first pulley shaft in a perpendicular direction towards the first sheet conveying path.
10 more elements
An image forming apparatus including a sheet conveying device, the sheet conveying device comprising:
a first conveying unit configured to convey a sheet in a first sheet conveying direction;
a second conveying unit disposed on a downstream side of the first conveying unit in the first sheet conveying direction and configured to convey the sheet conveyed by the first conveying unit in a second sheet conveying direction different from the first sheet conveying direction,
at least the second conveying unit of the first and second conveying units including a holding and conveying unit with a holding section to hold and convey the sheet;
a first sheet conveying path formed between the first conveying unit and the second conveying unit;
and
a belt conveying unit disposed along an outer side of the first sheet conveying path and configured to include a belt to convey the sheet toward the holding section of the second conveying unit,
wherein the belt conveying unit includes:
a first belt holding and rotating member disposed facing the holding section;
and
a second belt holding and rotating member disposed facing the first belt holding and rotating member and disposed on an upstream side of the second conveying unit in the second sheet conveying direction, and
the belt being wound around the first and second belt holding and rotating members,
wherein the belt conveying unit further includes at least one first pressing member configured apply a force on a first pulley shaft via a bearing member to press the belt conveying unit in such a direction that the belt constantly press contacts with the first belt holding and rotating member toward the first sheet conveying path, and at least one second pressing member configured to apply a force on a second pulley shaft via a belt supporting member to press the belt conveying unit in such a direction that the belt constantly press contacts with the second belt holding and rotating member toward the first sheet conveying path, and
wherein the belt supporting member is rotatably attached to the first pulley shaft and rotatably moves about the first pulley shaft in a perpendicular direction towards the first sheet conveying path.
10 more elements
An image forming apparatus, comprising:
a sheet conveying device, including:
a first conveying unit configured to convey a sheet in a first sheet conveying direction;
a second conveying unit disposed on a downstream side of the first conveying unit in the first sheet conveying direction and configured to convey the sheet conveyed by the first conveying unit in a second sheet conveying direction different from the first sheet conveying direction, wherein the first sheet conveying direction of the first conveying unit is substantially horizontal and directed to a diagonally upward position, and the second sheet conveying direction of the second conveying unit is directed in a substantially vertically upward direction;
at least the second conveying unit of the first and second conveying units including a holding and conveying unit with a holding section to hold and convey the sheet;
a first sheet conveying path formed between the first conveying unit and the second conveying unit;
and
a belt conveying unit disposed along an outer side of the first sheet conveying path and configured to include a belt to convey the sheet toward the holding section of the second conveying unit,
wherein the belt conveying unit includes:
a first belt holding and rotating member disposed facing the holding section;
and
a second belt holding and rotating member disposed facing the first belt holding and rotating member and disposed on an upstream side of the second conveying unit in the second sheet conveying direction, and
the belt being wound between the first and second belt holding and rotating members,
wherein the belt conveying unit further includes at least one first pressing member configured to apply a force on a first pulley shaft via a bearing member to press the belt conveying unit in such a direction that the belt constantly press contacts with the first belt holding and rotating member toward the first sheet conveying path, and at least one second pressing member configured to apply a force on a second pulley shaft via a belt supporting member to press the belt conveying unit in such a direction that the belt constantly press contacts with the second belt holding and rotating member toward the first sheet conveying path, and
wherein the belt supporting member is rotatably attached to the first pulley shaft and rotatably moves about the first pulley shaft in a perpendicular direction towards the first sheet conveying path.
11 Mar 2031Estimated · howhide20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 1,309 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.
By belts: between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip
Life of this patent
About 4 years 4 months of term left · ends 11 Mar 2031 (estimated)
Priority, Japan11 Aug 2006
Filed10 Aug 2007
Granted3 Feb 2015
Today12 Oct 2026
Term ends11 Mar 2031
Priority, Japan11 Aug 2006
Granted3 Feb 2015
Term ends11 Mar 2031
Priority claimedJP 2006-220457
Application filedUS 11/889,257
Assigned to Ricoh Company, Ltd.assignment of assignor's interest
PublishedUS 2008/0038039 A1
GrantedUS 8,944,708 B2
TodayWithin its term
Term endsEstimated, includes 1,309 days of adjustment
Description29,004 words
Summary3,792 words
#The present patent application claims priority under 35 U.S.C. §119 from Japanese Patent Application No. 2006-220457 filed on Aug. 11, 2006 in the Japan Patent Office, the entire contents and disclosure of which are hereby incorporated by reference herein in their entirety.
#Example embodiments of the present invention generally relate to a sheet conveying device effectively conveying various types of sheets, an image forming apparatus such as a copier, a facsimile machine, a printer, a printing machine, an inkjet recording device, a scanner provided with the sheet conveying device, and a multifunctional machine combining functions of at least two of the above.
Brief description of the drawings28 figures
#The accompanying drawings are intended to depict example embodiments of the present invention and should not be interpreted to limit the scope thereof. The accompanying drawings are not to be considered as drawn to scale unless explicitly noted.
#A more complete appreciation of the disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
#FIG. 1 is an elevation view of a schematic entire configuration of an image forming apparatus, according to an example embodiment of the prevent invention;
Detailed description24,547 words
#It will be understood that if an element or layer is referred to as being “on”, “against”, “connected to” or “coupled to” another element or layer, then it can be directly on, against, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, if an element is referred to as being “directly on”, “directly connected to” or “directly coupled to” another element or layer, then there are no intervening elements or layers present. Like numbers referred to like elements throughout. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
#Spatially relative terms, such as “beneath”, “below”, “lower”, “above”, “upper” and the like may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements describes as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, term such as “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors herein interpreted accordingly.
#Although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, it should be understood that these elements, components, regions, layer and/or sections should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer or section from another region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.