# US 2013/0156529 A1 · Binding machine and cutting blade used for binding machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156529 A1 - Document ID: US20130156529A1 - Status: Published application - Kind: A1 - Application number: 13/814,400 - Filed: 2011-07-08 - Published: 2013-06-20 - Earliest claimed: 2010-08-06 - Assignees: Kokuyo Co., Ltd. - Inventors: Hirokazu Aoi - Web page: https://patentgrep.com/patent/US20130156529A1 ## CPC - B42B 5/00: Permanently attaching together sheets, quires or signatures otherwise than by stitching (by deformation thereof B31F; by adhesive peculiar to bookbinding B42C9/00) - B26D 1/0006: {Cutting members therefor} - B26F 1/02: Perforating by punching, e.g. with relatively-reciprocating punch and bed - B31F 5/027: {by perforating, e.g. by folding over the partially cut part} - B42B 5/08: by finger, claw or ring-like elements passing through the sheets, quires or signatures - B42F 3/00: Sheets temporarily attached together involving perforations; Means therefor; Sheet details therefor (staples, fasteners in general F16B) - B42F 3/003: {Perforated or punched sheets} - B26D 2001/0053: {having a special cutting edge section or blade section} - B26D 2001/006: {the cutting blade having a special shape, e.g. a special outline, serrations} - Y10T 83/9314: Pointed perforators - B42B: PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO (nailing or stapling in general B25C, B27F; machines for both collating or gathering and permanently attaching together sheets or signatures B42C1/12; temporarily attaching sheets together B42F) - 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) - B26F: PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING (marking-out, perforating or making buttonholes A41H25/00; shoemaking A43D; surgery A61B; punching metal B21D; drilling metal B23B; cutting of metal by applying heat locally, e.g. flame cutting, B23K; cutting by abrasive fluid jets B24C5/02; details common to machines for severing B26D; drilling wood B27C; drilling 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; of glass C03B; of leather C14B; of textile materials D06H; for light guides G02B6/25; of tickets G07B) - B31F: MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making layered products not composed wholly of paper or cardboard B32B) - B42F: SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING (reading desks A47B19/00; book rests A47B23/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A punching blade can form a cut-and-raised piece provided with a wide width portion in a distal-end region, a cutting blade is provided with a first blade having a window with which the cut-and-raised piece is engaged and forming a first slit and a second blade for forming a second slit extending in a direction of a punched hole from the midstream of the first slit. It is also configured such that an edge from the wide width portion of the cut-and-raised piece to the base end can be engaged with the second slit. ## Claims ### Claim 1 A binding machine comprising: a punching blade for punching a punched hole while forming a cut-and-raised piece in a plurality of sheets; a cutting blade provided adjacently to this punching blade and punching a cut hole for locking the distal end side of the cut-and-raised piece; a base portion for holding the punching blade and the cutting blade; and a punch stand disposed on this base portion through a gap for sheet insertion: by performing a punching operation so that the punching blade and the cutting blade held on the base portion penetrate the sheet inserted in the gap for sheet insertion and protrude to the punch stand side, a punched hole and a cut hole are formed in the sheet: and by performing a withdrawing operation so that the cutting blade and the punching blade are returned to the base portion side in a state while the distal end side of the cut-and-raised piece cut and raised from the punched hole to the punch stand side is engaged with the cutting blade, the cut-and-raised piece penetrates the cut hole and the sheets are bound: the cutting blade comprising: a first blade having a window with which the cut-and-raised piece is engaged and forming a first slit; and a second blade for forming a second slit extending in a direction of the punched hole from the midstream of the first slit: also configured such that an edge from a wide width portion of the cut-and-raised piece to a base end thereof can be engaged with the second slit. ### Claim 2 (depends on 1) The binding machine according to claim 1, wherein a shape and a dimension of the punching blade, a shape and a dimension of the cutting blade, and relative positions of the punching blade and the cutting blade are set so that the wide width portion is located on the side farther away from the punched hole than the distal end of the second slit. ### Claim 3 (depends on 1) The binding machine according to claim 1, wherein the shape and the dimension of the punching blade, the shape and the dimension of the cutting blade, and the relative positions of the punching blade and the cutting blade are set so that an outer end of the wide width portion is located on the outer side of the second slit. ### Claim 4 (depends on 2) The binding machine according to claim 2, wherein the shape and the dimension of the punching blade, the shape and the dimension of the cutting blade, and the relative positions of the punching blade and the cutting blade are set so that the wide width portion is located closer to the punched hole side than the first slit. ### Claim 5 (depends on 3) The binding machine according to claim 3, wherein the window is formed of a reduced width portion provided with the second blade for forming the second slit at least on one of side edges and an enlarged width portion provided adjacently to this reduced width portion, the shape and the dimension of the punching blade, the shape and the dimension of the cutting blade, and the relative positions of the punching blade and the cutting blade are set so that a width dimension of the wide width portion is smaller than an inner dimension of the enlarged width portion. ### Claim 6 (depends on 1) The binding machine according to claim 1, wherein the window is provided with a projection for pushing the cut-and-raised piece into the cut hole. ### Claim 7 (depends on 1) A cutting blade used in the binding machine according to claim 1 wherein the second blade is formed on both side edges of the window. ### Claim 8 (depends on 7) The cutting blade according to claim 7, wherein the second blade is integrally cut and raised from the window. ### Claim 9 (depends on 2) The binding machine according to claim 2, wherein the shape and the dimension of the punching blade, the shape and the dimension of the cutting blade, and the relative positions of the punching blade and the cutting blade are set so that an outer end of the wide width portion is located on the outer side of the second slit. ### Claim 10 (depends on 2) The binding machine according to claim 2, wherein the window is provided with a projection for pushing the cut-and-raised piece into the cut hole. ### Claim 11 (depends on 3) The binding machine according to claim 3, wherein the window is provided with a projection for pushing the cut-and-raised piece into the cut hole. ### Claim 12 (depends on 4) The binding machine according to claim 4, wherein the window is provided with a projection for pushing the cut-and-raised piece into the cut hole. ### Claim 13 (depends on 5) The binding machine according to claim 5, wherein the window is provided with a projection for pushing the cut-and-raised piece into the cut hole. ### Claim 14 (depends on 2) A cutting blade used in the binding machine according to claim 2, wherein the second blade is formed on both side edges of the window. ### Claim 15 (depends on 3) A cutting blade used in the binding machine according to claim 3, wherein the second blade is formed on both side edges of the window. ### Claim 16 (depends on 4) A cutting blade used in the binding machine according to claim 4, wherein the second blade is formed on both side edges of the window. ### Claim 17 (depends on 5) A cutting blade used in the binding machine according to claim 5, wherein the second blade is formed on both side edges of the window. ### Claim 18 (depends on 6) A cutting blade used in the binding machine according to claim 6, wherein the second blade is formed on both side edges of the window.