# US 2026/0265015 A1 · Cutting mechanism, winding machine, and cutting method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0265015 A1 - Document ID: US20260265015A1 - Status: Published application - Kind: A1 - Application number: 19/165,878 - Filed: 2023-12-15 - Published: 2026-09-10 - Earliest claimed: 2023-03-30 - Assignees: The Japan Steel Works, Ltd. - Applicants: The Japan Steel Works, Ltd. - Inventors: Takato MAEKAWA - Web page: https://patentgrep.com/patent/US20260265015A1 ## CPC - B26D 1/045: {for thin material, e.g. for sheets, strips or the like} - B65H 35/0086: {using movable cutting elements} - B26D 1/04: having a linearly-movable cutting member (B26D1/46, B26D1/547 take precedence) - B26D 3/00: Cutting work characterised by the nature of the cut made; Apparatus therefor - B26D 5/00: Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting - B26D 5/086: {Electric, magnetic, piezoelectric, electro-magnetic means} - B26D 7/0006: {Means for guiding the cutter (for hand knives B26B29/06; for band-knives B26D1/54)} - B26D 7/32: for conveying or stacking cut product (means for removing cut-out material or waste B26D7/18) - B65H 19/265: {using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the web} - B65H 35/06: from or with blade, e.g. shear-blade, cutters or perforators (from or with revolving blade B65H35/08) - B65H 2301/515123: arranged for cutting web supported on the surface of a cylinder - B65H 2301/51532: Blade cutter, e.g. single blade cutter - 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) - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract A cutting mechanism which contributes to improving the performance for cutting a film material is provided. A cutting mechanism is a cutting mechanism used in a winding machine that winds a film material, which cutting mechanism cuts the film material by moving a cutter in a left/right direction of the winding machine and includes: a guide mechanism that guides the cutter in the left/right direction of the winding machine; a driving mechanism that moves the cutter in the left/right direction of the winding machine; and a holding mechanism that holds the cutter at an initial position. The holding mechanism includes a first magnet provided in the cutter and a second magnet provided in a part of the winding machine that is stopped when the cutter moves, and the first magnet and the second magnet are magnetically connected to each other at the initial position. ## Claims ### Claim 1 A cutting mechanism used in a winding machine configured to wind a film material in a roll form, the cutting mechanism being configured to cut the film material by moving a cutter in a left/right direction of the winding machine and comprising: a guide mechanism configured to guide the cutter in the left/right direction of the winding machine; a driving mechanism configured to move the cutter in the left/right direction of the winding machine; and a holding mechanism configured to hold the cutter at a preset initial position, wherein the holding mechanism includes a first magnet provided in the cutter and a second magnet provided in a part of the winding machine that is stopped when the cutter moves, and the first magnet and the second magnet are magnetically connected to each other at the initial position. ### Claim 2 (depends on 1) The cutting mechanism according to claim 1, wherein the driving mechanism comprises a motor and a drive transmission part configured to transmit a driving force of the motor to the cutter, the drive transmission part comprises a clutch disposed between the motor and the cutter, an input-side transmission part between the motor and the clutch, and an output-side transmission part between the clutch and the cutter, and the input-side transmission part comprises an amplification part configured to amplify the driving force of the motor. ### Claim 3 (depends on 1) The cutting mechanism according to claim 1, wherein the cutting mechanism comprises a receiving mechanism configured to receive the cutter in a state where the cutter has reciprocated in the left/right direction of the winding machine and then returned to the initial position. ### Claim 4 (depends on 1) The cutting mechanism according to claim 1, wherein a magnetic connection between the first magnet and the second magnet is released when a driving force of the driving mechanism is transmitted to the cutter. ### Claim 5 (depends on 1) The cutting mechanism according to claim 1, wherein the first magnet and the second magnet are electromagnets. ### Claim 6 (depends on 1) The cutting mechanism according to claim 1, wherein the film material is a long resin film. ### Claim 7 (depends on 1) A winding machine comprising the cutting mechanism according to claim 1. ### Claim 8 A cutting method for cutting a film material wound in a roll form by moving a cutter in a left/right direction of a winding machine, wherein when the cutter has reciprocated in the left/right direction of the winding machine and then returned to a preset initial position, a first magnet provided in the cutter and a second magnet provided in a part of the winding machine that is stopped when the cutter moves are magnetically connected to each other, and the cutter is held at the initial position.