Copying apparatus cover
First Claim
1. A cover and original document keep device for a copying apparatus having a housing and a platen surface comprising:
- (A) means forming a recessed base region in the copying apparatus housing adjacent to the platen surface and incorporating fixed first and second anchor means formed therein,(B) a unitary cover member comprising;
(1) a substantially flat portion, disposed over the platen surface,(2) one end forming a cover supporting means, and(3) the other end forming a cover raising and lowering handle means,(C) a cover positioning system comprising;
(1) sliding link means, having one end pivotally mounted to the first anchor means formed in the recessed base region and having the other end pivotally mounted to the unitary cover member near its supporting means, and(2) spring means operatively connected between the link means and the second anchor means to urge the sliding link means toward the second anchor means formed in the recessed base region,(D) with the cover supporting means frictionally engaging the housing in the pivotally raised position of the cover member,whereby the cover member cooperates with the sliding pivotal link means to allow the cover member to remain substantially parallel with the platen surface in order to accommodate both thin and thick original documents for copying and alternatively to allow the cover member to be pivotally raised above the platen surface and whereby cooperation of the cover positioning system, the cover supporting means and the copying apparatus housing maintains the cover member in the pivotally raised position.
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Accused Products
Abstract
In an electrophotographic copying apparatus, a cover and document keep device comprises a rigid cover cooperating with a pivoting arm linkage to maintain substantially parallel alignment of the cover with the platen surface regardless of the thickness of the original document to be copied, thereby providing an effective shield against radiation emitted by the copier exposure source. A plurality of anchoring means are formed in a recessed region of the copying apparatus housing. A resiliently biased arm link is slidably pivotally mounted to the anchoring means and pivotally mounted to the rigid cover to allow the cover to remain substantially parallel with the platen surface through a range of document thicknesses. Another feature of the invention allows the rigid cover to remain pivotally raised above the platen surface without user assistance. A projection on the rigid cover makes frictional engagement with a wall of the recessed region in the copier housing to hold the cover resiliently biased in a raised position.
25 Citations
8 Claims
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1. A cover and original document keep device for a copying apparatus having a housing and a platen surface comprising:
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(A) means forming a recessed base region in the copying apparatus housing adjacent to the platen surface and incorporating fixed first and second anchor means formed therein, (B) a unitary cover member comprising; (1) a substantially flat portion, disposed over the platen surface, (2) one end forming a cover supporting means, and (3) the other end forming a cover raising and lowering handle means, (C) a cover positioning system comprising; (1) sliding link means, having one end pivotally mounted to the first anchor means formed in the recessed base region and having the other end pivotally mounted to the unitary cover member near its supporting means, and (2) spring means operatively connected between the link means and the second anchor means to urge the sliding link means toward the second anchor means formed in the recessed base region, (D) with the cover supporting means frictionally engaging the housing in the pivotally raised position of the cover member, whereby the cover member cooperates with the sliding pivotal link means to allow the cover member to remain substantially parallel with the platen surface in order to accommodate both thin and thick original documents for copying and alternatively to allow the cover member to be pivotally raised above the platen surface and whereby cooperation of the cover positioning system, the cover supporting means and the copying apparatus housing maintains the cover member in the pivotally raised position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A cover and original document keep device for a copying apparatus having a housing and a platen surface comprising:
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(A) means forming a recessed base region in the copying apparatus housing adjacent to the platen surface and incorporating a slotted first anchor means and a second anchor means formed therein, (B) a unitary cover member comprising; (1) a substantially flat portion, disposed over the platen surface, (2) one end forming a cover supporting means, and (3) the other end forming a cover raising and lowering handle means, (C) a cover positioning system comprising; (1) unitary link means, having one end slidingly pivotally mounted to the slotted first anchor means formed in the recessed base region and having the other end pivotally mounted to the unitary cover member near its supporting means; and (2) spring means operatively connected between the unitary link means and the second anchor means formed in the recessed base region to urge the sliding link means toward the second anchor means, (D) with the cover supporting means frictionally engaging the housing in the pivotally raised position of the cover member, whereby the cover member cooperates with the sliding pivotal link means to allow the cover member to remain substantially parallel with the platen surface in order to accommodate thick original documents for copying and alternatively to allow the cover member to be pivotally raised above the platen surface and whereby cooperation of the cover positioning system, the cover supporting means and the copying apparatus housing maintains the cover member in the pivotally raised position.
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8. A cover and original document keep device for a copying apparatus having a housing and a platen surface comprising:
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(A) means forming a recessed base region in the copying apparatus housing adjacent to the platen surface and incorporating fixed first and second anchor means formed therein, (B) a unitary cover member comprising; (1) a substantially flat portion, disposed over the platen surface, (2) one end forming a cover supporting means, and (3) the other end forming a cover raising and lowering handle means, (C) a cover positioning system comprising; (1) a slidingly extensible link means, having one end pivotally mounted to the first anchor means formed in the recessed base region and having the other end pivotally mounted to the unitary cover member near its supporting end; and (2) spring means operatively connected between the extensible link means and the second anchor means formed in the recessed base region to urge the link means toward the second anchor means, (D) with the cover supporting means frictionally engaging the housing in the pivotally raised position of the cover member, whereby the cover member cooperates with the slidingly extensible link means to allow the cover member to remain substantially parallel with the platen surface in order to accommodate thick original documents for copying and alternatively to allow the cover member to be pivotally raised above the platen surface and whereby cooperation of the cover positioning system, the cover supporting means and the copying apparatus housing maintains the cover member in the pivotally raised position.
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Specification