# US 11,440,334 B2 · Cutter apparatus and printing apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,334 B2 - Document ID: US11440334B2 - Status: Granted - Kind: B2 - Application number: 16/795,348 - Filed: 2020-02-19 - Published: 2020-08-27 - Granted: 2022-09-13 - Earliest claimed: 2019-02-21 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Takeshi Tokuda - Web page: https://patentgrep.com/patent/US11440334B2 ## CPC - B41J 11/70: cutting perpendicular to the direction of paper feed - B26D 1/085: {for thin material, e.g. for sheets, strips or the like} - B26D 7/00: Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting (cutters B26D1/00; arrangements for guiding hand cutting tools B26B29/06; punching tools or dies, cutting-out knives or dies B26F) - B41J 11/666: {Cutting partly, e.g. cutting only the uppermost layer of a multiple-layer printing material} - B26D 2007/005: {cutters, e.g. guillotines, used in a label maker or printer} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04) ## Abstract A cutter apparatus is provided that includes a fixed blade and a movable blade positioned facing the fixed blade, and that is configured to cut a medium transported between the fixed blade and the movable blade. The movable blade includes: a guide portion that is driven to reciprocate between a standby position at a distance from the medium and a cutting position, where the movable blade intermeshes with the fixed blade, protrudes further toward the movable blade than a cutting edge of the fixed blade when the movable blade is in the standby position, and is pressed by the movable blade to move in a state of being contact with the fixed blade when the movable blade is in the cutting position; and a biasing member configured to bias the guide portion toward the fixed blade. ## Claims ### Claim 1 A cutter apparatus for cutting a medium by a first blade and a second blade, the first blade moving between a standby position and a cutting position, the cutter apparatus comprising: a guide portion configured to protrude further toward the first blade than a cutting edge of the second blade when the first blade is in the standby position, a first urging member configured to urge the guide portion toward the second blade, wherein, when the first blade moves from the standby position to the cutting position, the guide portion is pressed by the first blade to move in a state of contacting with the second blade, wherein the second blade includes a curvature in which both ends of the second blade are lower relative to a center portion of the second blade in a transport direction of the medium, and wherein when the first blade moves to the cutting position and intersects with the second blade, the second blade flexes, thereby causing the curvature of the second blade to change conforming to the first blade. ### Claim 2 (depends on 1) The cutter apparatus according to claim 1, wherein the first blade includes a cutting edge having a V-shape extending in two directions toward the second blade, a pair of the guide portions are provided to the cutting edge of the first blade, and the pair of the guide portions is configured to move in accordance with a movement of the first blade. ### Claim 3 (depends on 1) The cutter apparatus according to claim 1, wherein the cutter apparatus is of a scissors type having the first blade and the second blade that form a medium cutting point, and cuts the medium as the medium cutting point moves while the first blade is moving from the standby position to the cutting position. ### Claim 4 (depends on 1) The cutter apparatus according to claim 1, wherein the first urging member is a leaf spring. ### Claim 5 (depends on 1) The cutter apparatus according to claim 1, wherein the first blade is provided to a first structure, the second blade is provided to a second structure separate from the first structure, and the second structure is configured to change posture thereof relative to the first structure. ### Claim 6 (depends on 1) The cutter apparatus according to claim 1, wherein a portion other than a cutting edge of the first blade abuts against the guide portion while the first blade moves from the standby position to the cutting position. ### Claim 7 (depends on 1) A printing apparatus comprising: a transport unit configured to transport a medium; a printing unit configured to perform printing on the medium; and the cutter apparatus described in claim 1 provided downstream of the printing unit in a transport direction of the medium and configured to cut the medium.