Abstract A roll sheet supplying mechanism for a recording device is disclosed. The mechanism allows for a roll sheet to be rolled into a recording device in a simple and convenient manner. The mechanism is comprised of a shaft having tapered end. The shaft supports the roll sheet and is positioned such that one end can be inserted within a fixed receiving portion while another end can be received within a movable receiving portion. A roll sheet is positioned on the shaft and the shaft is positioned on a support member such that the ends of the shaft are in alignment with the fixed end portion and the movable end portion. The movable end portion is retracted and may be locked into an open retracted position. The movable end portion is then released and is forced towards a shaft end by a biasing member. When the movable receiving portion contacts the tapered end of the shaft the shaft end is forced into the movable receiving end portion and consequently forces the other tapered end of the shaft into the fixed end receiving portion.
Inventors
👤 Hisao Nakajima
👤 Svay Leng
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-26 20:59
CPC Classifications
B; B65; B65H; B65H16/00; B65H16/02; B65H16/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A roll support mechanism for a recording device comprising a roll, a shaft for supporting said roll with the ends of the shaft extending outwardly beyond said roll, a first shaft supporting member having a fixed end portion for supporting one end of said shaft, a second shaft supporting member having a moveable end portion for supporting the other end of said shaft, biasing means for biasing said moveable end portion toward said shaft, a locking mechanism engageable with said moveable end portion to hold said moveable end portion against the bias of said biasing means a sufficient distance from said fixed end portion to permit changing of said roll, and support means for supporting said roll intermediate said first and second supporting members only during loading of said roll with the ends of the shaft substantially aligned with said fixed end portion and said moveable end portion respectively.
Claim 2
Dependent Claim
149 words
A roll support mechanism for a recording device comprising a roll, a shaft for supporting said roll with the ends of the shaft extending outwardly beyond said roll, a first shaft supporting member having a fixed end portion for supporting one end of said shaft, a second shaft supporting member having a moveable end portion for supporting the other end of said shaft, biasing means for biasing said moveable end portion toward said shaft, a locking mechanism engageable with said moveable end portion to hold said moveable end portion against the bias of said biasing means a sufficient distance from said fixed end portion to permit changing of said roll, and support means for supporting said roll intermediate said first and second supporting members only during loading of said roll with the ends of the shaft substantially aligned with said fixed end portion and said moveable end portion respectively.
Claim 3
Dependent Claim
45 words
A roll support mechanism as set forth in claim 1 wherein the opposite ends of said shaft are provided with tapered edges and said fixed end portion and said moveable end portion are each provided with sockets for the reception of said tapered shaft ends.
Claim 4
Dependent Claim
35 words
A roll support mechanism as set forth in claim 1 wherein said locking means is comprised of a pivoted lock lever adapted to be moved into and out of engagement with said moveable end portion.