Copy paper feeding cassette

• US 4,358,102 A
• Filed: 05/28/1980
• Issued: 11/09/1982
• Est. Priority Date: 05/31/1979
• Status: Expired due to Term

• Current Assignee: Konishiroku Photo Industry Co., Ltd. (Konica Minolta Inc.)
• Original Assignee: Konishiroku Photo Industry Co., Ltd. (Konica Minolta Inc.)
• Inventors: Seto, Yutaka, Hoshizaki, Tatsuji
• Primary Examiner(s): Stoner, Jr., Bruce H.
• Application Number:
  US06/154,070
• Time in Patent Office: 895 Days
• Field of Search: 271/169, 271/170, 271/167, 271/171, 271/164, 271/162, 271/126, 271/127, 271/117
• US Class Current: 271/164
• CPC Class Codes: B65H 1/04 adapted to support articles substantially horizontally, e.g. for separation from top of pile
• CPC Class Codes: B65H 1/266 Support fully or partially removable from the handling machine, e.g. cassette, drawer B65H1/027 takes precedence
• CPC Class Codes: G03G 15/6502 Supplying of sheet copy material; Cassettes therefor

Abstract

A copy sheet retaining cassette having a cutout or gate substantially centrally defined in each side wall of the cassette is further provided with a reinforcing plate pivotally mounted at a forward portion of each side wall. As the cassette is inserted into the interior of a copying machine, each reinforcing plate is moved to a substantially horizontal position at which it bridges the gate defined in the respective side wall so as to reinforce the cassette structure. A cassette holding piece carried on each reinforcing member operatively engages a cooperating machine member to stabilize the loaded cassette within the machine interior, and further carries an elastic member for engagement with the topmost ones of the copy sheets stacked in the cassette to prevent skewed feeding of the topmost sheet therefrom.

Claims

1. In a cassette for containing a stack of copy sheets and insertable into a reproducing machine for individual successive feeding to the machine of the uppermost sheet in the stack,

a pair of opposed side walls of the cassette, each said side wall including an open gate through which copy sheets being loaded into or removed from the cassette can be grasped,

a pair of reinforcing members, each carrying an elastic member thereon for pressure contact with at least the uppermost copy sheet in the stack when the cassette is fully inserted into the reproducing machine,

means pivotally mounting each said reinforcing member to a respective one of said side walls proximate the front end of the cassette for pivotal movement about said means between a first position in which each said reinforcing member is disposed at a position removed from the gate of its respective side wall, and a second position in which each said reinforcing member substantially horizontally spans the gate of its respective side wall to reinforce said respective side wall by bridging said gate thereof and in which each said elastic member is thereby maintained in pressure contact through said gate with at least the uppermost copy sheet in the stack contained in the cassette, and

guide means on each said reinforcing member for cooperative engagement with a portion of the reproducing machine to cause said reinforcing member to be automatically moved from said first to said second position thereof as the cassette is inserted fully into said reproducing machine from a location exterior thereto,

whereby said first position of the reinforcing members in the noninserted condition of the cassette enables ready access to sheets contained in or being placed into the cassette through said gates without interference from said reinforcing members, and said automatic pivotal movement of said reinforcing members to said second position as the cassette is inserted into the reproducing machine insures that said side wall reinforcing function of said reinforcing members in spanning said gates, and said disposal of the elastic members in pressure contact with at least the uppermost copy sheet in the stack, will be attained when the cassette is fully inserted into the reproducing machine.

2. In a cassette in accordance with claim 1, cassette holding means on at least one of said reinforcing members for cooperating with the reproducing machine to facilitate stable retention of the cassette within the machine in its fully inserted condition.

3. In a cassette in accordance with claim 2, said cassette holding means comprising an elastic holding member carried on at least one of said reinforcing members and engageable with a cooperating portion of the reproducing machine when the cassette is fully inserted into the machine such that said reinforcing members are disposed in the second position thereof.

4. In a cassette in accordance with claim 1 wherein the copy sheets are fed from a forward-defined end of the cassette,

said pivotal mounting means of the reinforcing members being located on said side walls proximate the forward end of the cassette.

5. In a cassette in accordance with claims 1 or 4, said reinforcing members being elongated and mounted to said side walls by said pivotal mounting means substantially at a longitudinal end of each said reinforcing member.

6. In a cassette in accordance with claim 1, said elastic members being carried on an exterior-disposed face of the respective reinforcing member and being predeterminately curved such that each said elastic member curves over an edge of the supporting reinforcing member toward the interior of the cassette through the respective gate when the reinforcing member is disposed in its second position.

7. In a cassette in accordance with claims 1 or 6 wherein the copy sheets are fed from a forward-defined end of the cassette,

said cassette further including a rear wall located at a rear end of the cassette defined opposite said forward end thereof, and

each said elastic member being carried on its respective reinforcing member such that said elastic member is disposed, when the reinforcing members are disposed in their second position, toward the rear end of the cassette but spaced outwardly from said rear wall thereof.