US3615134A - Counterbalanced and self-closing platen cover - Google Patents

Counterbalanced and self-closing platen cover Download PDF

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Publication number
US3615134A
US3615134A US861880A US3615134DA US3615134A US 3615134 A US3615134 A US 3615134A US 861880 A US861880 A US 861880A US 3615134D A US3615134D A US 3615134DA US 3615134 A US3615134 A US 3615134A
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US
United States
Prior art keywords
cover
platen
slide
closure
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US861880A
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English (en)
Inventor
Dean R Newcomb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of US3615134A publication Critical patent/US3615134A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/6221—Transparent copy platens
    • G03B27/6228—Platen covers

Definitions

  • This invention relates in general to a control mechanism for regulating the positioning of a closure device.
  • a still further object of this invention is to improve control mechanism for regulating the positioning of a closure device.
  • a control apparatus including a movable slide mechanism operatively connected to a shield and the slide arranged to reciprocate when the shield is moved between an opened and closed position, a first biasing means acting on the slide member to support the slide in a stationary condition when the shield is moved to a position between a predetermined position and the opened position, and a second biasing means arranged to override the first biasing means when the shield is placed at a position between the predetermined position and the closed position to automatically close the shield.
  • FIG. 1 is a side elevation in partial section showing the control mechanism of the present invention and illustrating the cover in a position wherein the mechanism is conditioned to automatically return the cover to a closed position;
  • FIG. 2 is a partial side elevation of the mechanism shown in FIG. 1 illustrating the mechanism supporting the cover in a stationary elevated condition;
  • FIG. 3 is a partial plan view of the platen cover mechanism illustrated in FIG. 1 showing a platen cover seated against a horizontal platen.
  • a support mounted in a substantially horizontal position and secured within the frame of an automatic copying apparatus.
  • the support can be arranged to support an original intended to be reproduced in light projecting relationship with an optical system supported within the machine frame which, for example, may focus a light image of the original upon a light sensitive member wherein the member is imaged corresponding to the original subject matter.
  • the stationary support is mounted within an opening within the machine member 13.
  • the support includes a rectangular transparent platen 14, usually made of glass, which is secured by suitable means to the machine frame.
  • the platen rests upon a soft edge gasket 17 which is carried on the horizontal dependent flange 16 of the machine frame.
  • a cover plate 20, aflixed to the machine frame, is placed over the frame and is provided with an opening to expose the top surface of the platen.
  • a platen shield is movably supported along one edge of the platen and includes a rigid continuous outer shell 24 having afiixed thereto a soft rubber-like backing 25 arranged to contact the upper exposed surface of the glass platen when the cover is placed in a fully closed position.
  • the backing can be fabricated from either a natural rubber or any number of commercially available synthetic rubbers, as for eX- ample, foamed polyurethane, which is affixed to the outer shell by means of an adhesive.
  • a handle 26 is provided along the free end of the cover and provides a means by which the cover can be raised and lowered.
  • the opposite end of the cover is secured to a hinged support 27, by suitable means, and the support rigidly afiixed to an elongated hinge pin 29.
  • the hinge pin has a turned crank arm 19 formed at one end while the linear portion thereof is rotatably supported on machine member 13 in a plurality of hinge brackets 21.
  • a carriage 30 is bolted to a side bracket 33 of the machine frame and slidable therein a slide member 31.
  • a vertical aligned slotted hole 32 is formed in the right-hand end of the slide member and freely receives therein the offset crank arm formed in the end of hinge pin 29.
  • An annular snap ring 35 is placed over the end of the hinge pin to prevent lateral movement between the pin and the slide member.
  • a second, horizontally aligned, slotted hole 36- is also formed within slide member 31. through which a bolt 38 passes. The bolt is secured in the machine bracket 32. and holds the slide in movable operative relation with the carriage member. In operation, raising or lowering the cover causes the crank arm to move the slide member back and forth within the carriage.
  • a housing 41 is also secured to the side of machine bracket 33.
  • the housing comprises a main body 43 having a support flange 42 aflixed thereto.
  • the housing is adjustably mounted on the bracket by a pair of screws 44 passing through slotted holes in the support flange and the housing arranged to overlie in horizontal parallel relation therewith slide 31 (FIG. 3).
  • the left-hand end of the slide member 31, as shown in FIG. 1, is provided with a horizontally extended dependent flange 40 which reciprocates within housing 41 as the slide member moves back and forth.
  • a compression spring 47 is mounted between the flange 40 and stationary side walls 49 of the housing. The spring acts to hold the slide member and cover in a stationary condition regardless of the position at which the cover is placed.
  • a second biasing member is provided to override the effects of spring 47 when the cover is brought to a predetermined position in relation to the platen which forces the slide to the right as shown in FIG. 1 to automatically bring the cover into closure against the platen surface.
  • an opening 50 is cut out of the bottom of slide 31 having a side wall thereof describing an inclined plane 51.
  • the bottom rail 54 of carriage 30 is turned downwardly and carries a generally vertically aligned spring housing 53 below the slide member 31.
  • An L-shaped plate 53 is slidably supported within the housing and is biased upwardly by means of a second spring 59.
  • the slide plate 55 has a surface 57 (FIG. 2) machined thereon which complements the inclined plane 51 formed in the side wall of opening 50.
  • Spring 59 is seated in the bottom of housing 53 and exerts an upward pressure against the plate whereby the top surface of the plate normally rides in sliding contact against the bottom surface of the slide member.
  • the plate 55 is forced by the spring upwardly into opening 50.
  • surface 57 thereon mates with complementary inclined plane 51.
  • a portion of the upward biasing pressure of spring 59 is now converted into a horizontal component acting against the slide with suificient force to override the holding effect of spring 47.
  • the slide member is forced rearwardly causing the cover to automatically drop down into lighttight closure against the top surface of the platen.
  • the platen cover is permitted to swing upwardly approximately 80 above the horizontal plane of the platen.
  • the cover will remain in a stationary condition at any desired positionbetween 30 and 80 above the platen surface providing sufficient room for the operator to place an original thereon.
  • the holding feature of the system is negated by the override spring and the cover automatically moves downwardly into closure with the platen.
  • a cover control apparatus including:
  • a closure means movably supported in relation to a stationary surface and being arranged to move between a closed position in contact with said surface and a fully open position remote from said surface
  • a slide member arranged to reciprocate in a plane and being connected to said closure means wherein the slide moves back and forth in said plane as said closure means is moved between said fully open and said closed positions
  • a first biasing means arranged to act on said slide to hold said slide in a stationary condition wherein the cover remains stationary when placed at a position between said fully open position and said closed position
  • a second biasing means arranged to act on said slide to override said first biasing means when said closure means is placed at a position between said closed position and a predetermined position intermediate said closed position and said fully open position.
  • closure means is arranged to move into light-tight relationship with a viewing platen when in said closed position.
  • closure means includes a rigid, self-supporting member hinged at one end whereby said member swings about one edge of said platen.
  • Apparatus for controlling the positioning of a movably mounted cover for shielding in light-tight relation a viewing platen including:

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Closures For Containers (AREA)
  • Binders And Loading Units For Sheaves (AREA)
US861880A 1969-09-29 1969-09-29 Counterbalanced and self-closing platen cover Expired - Lifetime US3615134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86188069A 1969-09-29 1969-09-29

Publications (1)

Publication Number Publication Date
US3615134A true US3615134A (en) 1971-10-26

Family

ID=25337015

Family Applications (1)

Application Number Title Priority Date Filing Date
US861880A Expired - Lifetime US3615134A (en) 1969-09-29 1969-09-29 Counterbalanced and self-closing platen cover

Country Status (12)

Country Link
US (1) US3615134A (pl)
JP (1) JPS5029328B1 (pl)
BE (1) BE756482A (pl)
CA (1) CA921744A (pl)
CH (1) CH515525A (pl)
DE (1) DE2046911A1 (pl)
ES (1) ES384046A1 (pl)
FR (1) FR2062844A5 (pl)
GB (1) GB1318753A (pl)
NL (1) NL7014031A (pl)
PL (1) PL81336B1 (pl)
SU (1) SU439097A3 (pl)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724949A (en) * 1970-12-07 1973-04-03 Ricoh Kk Electrophotographic copying apparatus provided with an automatic elevational original keep-plate
US3813161A (en) * 1973-03-12 1974-05-28 Xerox Corp Platen cover
JPS49149756U (pl) * 1973-04-25 1974-12-25
US3932037A (en) * 1973-11-27 1976-01-13 Minolta Camera Kabushiki Kaisha Original holder plate for copying machine
US3944366A (en) * 1974-08-26 1976-03-16 Xerox Corporation Sliding platen cover apparatus
US3988065A (en) * 1975-05-21 1976-10-26 Xerox Corporation Reflective document feeder
US3989376A (en) * 1973-06-12 1976-11-02 Ing. C. Olivetti & C., S.P.A. Device for positioning and covering documents in a reprographic machine
US3997265A (en) * 1975-09-02 1976-12-14 Xerox Corporation Platen cover
US4124296A (en) * 1976-09-01 1978-11-07 Canon Kabushiki Kaisha Original urging device
US4135805A (en) * 1977-08-04 1979-01-23 Xerox Corporation Counterbalancing apparatus
US4137669A (en) * 1978-02-08 1979-02-06 Sybron Corporation Balancing mechanism for manhole covers
US4172660A (en) * 1978-01-03 1979-10-30 Pitney-Bowes, Inc. Copying apparatus cover
US4357101A (en) * 1978-04-17 1982-11-02 Mita Industrial Company Limited Mechanism for supporting an original document cover lid of an electrostatic copying apparatus
US4411419A (en) * 1980-09-11 1983-10-25 Pitney Bowes Inc. Articulate bridge assembly
US4585329A (en) * 1981-05-29 1986-04-29 Savin Corporation Platen cover assembly for copier
US5465862A (en) * 1994-08-25 1995-11-14 Dabico, Inc. Aircraft servicing pit lid with lift control
FR2783384A1 (fr) * 1998-05-29 2000-03-17 Canon Kk Appareil de lecture d'images et procede pour son assemblage
US20060000056A1 (en) * 2004-06-30 2006-01-05 Connors William M Closure mechanism for hinged devices

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473534U (pl) * 1977-11-04 1979-05-25
JPS5926013B2 (ja) * 1979-12-21 1984-06-23 京セラミタ株式会社 複写機の原稿抑えの保持機構

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724949A (en) * 1970-12-07 1973-04-03 Ricoh Kk Electrophotographic copying apparatus provided with an automatic elevational original keep-plate
US3813161A (en) * 1973-03-12 1974-05-28 Xerox Corp Platen cover
JPS49149756U (pl) * 1973-04-25 1974-12-25
US3989376A (en) * 1973-06-12 1976-11-02 Ing. C. Olivetti & C., S.P.A. Device for positioning and covering documents in a reprographic machine
US3932037A (en) * 1973-11-27 1976-01-13 Minolta Camera Kabushiki Kaisha Original holder plate for copying machine
US3944366A (en) * 1974-08-26 1976-03-16 Xerox Corporation Sliding platen cover apparatus
US3988065A (en) * 1975-05-21 1976-10-26 Xerox Corporation Reflective document feeder
US3997265A (en) * 1975-09-02 1976-12-14 Xerox Corporation Platen cover
US4124296A (en) * 1976-09-01 1978-11-07 Canon Kabushiki Kaisha Original urging device
US4135805A (en) * 1977-08-04 1979-01-23 Xerox Corporation Counterbalancing apparatus
US4172660A (en) * 1978-01-03 1979-10-30 Pitney-Bowes, Inc. Copying apparatus cover
US4137669A (en) * 1978-02-08 1979-02-06 Sybron Corporation Balancing mechanism for manhole covers
US4357101A (en) * 1978-04-17 1982-11-02 Mita Industrial Company Limited Mechanism for supporting an original document cover lid of an electrostatic copying apparatus
US4411419A (en) * 1980-09-11 1983-10-25 Pitney Bowes Inc. Articulate bridge assembly
US4585329A (en) * 1981-05-29 1986-04-29 Savin Corporation Platen cover assembly for copier
US5465862A (en) * 1994-08-25 1995-11-14 Dabico, Inc. Aircraft servicing pit lid with lift control
FR2783384A1 (fr) * 1998-05-29 2000-03-17 Canon Kk Appareil de lecture d'images et procede pour son assemblage
EP0961476A3 (en) * 1998-05-29 2001-02-21 Canon Kabushiki Kaisha Image reading apparatus and method of assembling the same
US6661538B1 (en) 1998-05-29 2003-12-09 Canon Kabushiki Kaisha Image reading apparatus and method of assembling the same
US20060000056A1 (en) * 2004-06-30 2006-01-05 Connors William M Closure mechanism for hinged devices
US7155777B2 (en) 2004-06-30 2007-01-02 Lexmark International, Inc. Closure mechanism for hinged devices

Also Published As

Publication number Publication date
CA921744A (en) 1973-02-27
ES384046A1 (es) 1972-12-16
GB1318753A (en) 1973-05-31
SU439097A3 (ru) 1974-08-05
JPS5029328B1 (pl) 1975-09-22
BE756482A (fr) 1971-03-22
NL7014031A (pl) 1971-03-31
DE2046911A1 (de) 1971-04-15
FR2062844A5 (pl) 1971-06-25
PL81336B1 (pl) 1975-08-30
CH515525A (de) 1971-11-15

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