# US 10,245,658 B2 · Cutting device and chamfering machine comprising the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,658 B2 - Document ID: US10245658B2 - Status: Granted - Kind: B2 - Application number: 15/463,996 - Filed: 2017-03-20 - Published: 2017-10-05 - Granted: 2019-04-02 - Earliest claimed: 2016-03-31 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: YoungTae Kim; YuShik Hong; SeulKi Park; DoWon Yang; YeHoon Im - Web page: https://patentgrep.com/patent/US10245658B2 ## CPC - B23C 3/12: Trimming or finishing edges, e.g. deburring welded corners - B23C 5/20: with removable cutter bits or teeth {or cutting inserts} - B23C 2200/083: curved - B23C 2200/203: Curved cutting edges - B23C 2200/28: Angles - B23C 2210/084: Curved cutting edges - B23C: MILLING (broaching B23D; broach-milling in making gears B23F; arrangement for copying or controlling B23Q) ## Abstract The present invention relates to a cutting device and a chamfering machine comprising the same, and according to one aspect of the present invention, a cutting device for use in a chamfering process of a film laminate is provided, in which the cutting device comprises a rotating wheel having a rotation center; and a cutting bite comprising a main body mounted on the rotating wheel and a cutting tip provided on the main body and provided to perform chamfering of the film laminate by rotating the rotating wheel, wherein the cutting bite is mounted on the rotating wheel such that the central axis of the cutting tip is inclined at a first angle with respect to the tangential direction of a rotation locus of the cutting bite formed by rotating the rotating wheel. ## Claims ### Claim 1 A cutting device for use in a chamfering process of a film laminate, comprising a rotating wheel having a rotation center; and a cutting bite comprising a main body mounted on said rotating wheel and a cutting tip provided on said main body and provided to perform chamfering of the film laminate by rotating the rotating wheel, wherein said cutting bite is mounted on the rotating wheel such that the central axis of said cutting tip is inclined at a first angle with respect to the tangential direction of a rotation locus of the cutting bite formed by rotating said rotating wheel, and wherein the cutting tip is provided such that a cutting line contacting with the film laminate along the rotation direction of the rotating wheel is formed as a curved line, but a central part of the curved line has a concave shape recessed inward than both side edges. ### Claim 2 (depends on 1) The cutting device according to claim 1, wherein said cutting bite is inclined so that the cutting tip is disposed closer to the rotation center of the rotating wheel than the case that the central axis of the cutting tip is parallel to said tangential direction. ### Claim 3 (depends on 1) The cutting device according to claim 1, wherein said first angle is 20° to 35°. ### Claim 4 (depends on 3) The cutting device according to claim 3, wherein said first angle is 30°. ### Claim 5 (depends on 1) The cutting device according to claim 1, wherein the cutting tip is provided such that the cutting line has a symmetrical shape based on the central axis. ### Claim 6 A cutting device for use in a chamfering process of a film laminate, comprising a rotating wheel having a rotation center; and a plurality of cutting bites mounted on said rotating wheel, wherein the plurality of cutting bites are mounted apart along the circumferential direction of the rotating wheel, each cutting bite comprises a main body mounted on the rotating wheel and a cutting tip provided on an apical part of said main body and provided to perform chamfering by rotating the rotating wheel while maintaining a contact condition with the film laminate, and said cutting bite is mounted on the rotating wheel such that the central axis of said cutting tip is inclined at a first angle with respect to the tangential direction of a rotation locus of the cutting bite formed by rotating said rotating wheel, and wherein the cutting tip is provided such that a cutting line contacting with the film laminate along the rotation direction of the rotating wheel is formed as a curved line, but a central part of the curved line has a concave shape recessed inward than both side edges. ### Claim 7 (depends on 6) The cutting device according to claim 6, wherein the plurality of cutting bites are mounted at the same angular interval along the circumferential direction of the rotating wheel. ### Claim 8 (depends on 6) The cutting device according to claim 6, wherein at least two cutting bites are each mounted at different distances from the rotation center along the radial direction of the rotating wheel. ### Claim 9 (depends on 6) The cutting device according to claim 6, wherein at least two cutting bites are each mounted at the same distance from the rotation center along the radial direction of the rotating wheel. ### Claim 10 (depends on 6) The cutting device according to claim 6, wherein each cutting bite is provided such that the cutting tip is exposed in the same direction based on the rotation direction of the rotating wheel. ### Claim 11 (depends on 6) The cutting device according to claim 6, wherein said cutting bite is inclined so that the cutting tip is disposed closer to the rotation center of the rotating wheel than the case that the central axis of the cutting tip is parallel to said tangential direction. ### Claim 12 (depends on 6) The cutting device according to claim 6, wherein said first angle is 20° to 35°. ### Claim 13 (depends on 12) The cutting device according to claim 12, wherein said first angle is 30°. ### Claim 14 (depends on 1) A chamfering machine, comprising a transfer unit for transferring a film laminate; the cutting devices according to claim 1 disposed on both sides along a transfer direction of the transfer unit, respectively; and a drive part for rotating said cutting devices.