# US 2014/0190326 A1 · Effort-saving paper punch > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190326 A1 - Document ID: US20140190326A1 - Status: Published application - Kind: A1 - Application number: 13/735,036 - Filed: 2013-01-07 - Published: 2014-07-10 - Earliest claimed: 2013-01-07 - Inventors: Koc-Sing CO - Web page: https://patentgrep.com/patent/US20140190326A1 ## CPC - B26D 5/10: Hand or foot actuated means - B26F 1/38: Cutting-out; Stamping-out - B26F 1/36: Punching or perforating pliers - Y10T 83/853: Indicates tool position - Y10T 83/8828: Plural tools with same drive means - 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) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An effort-saving paper punch includes a lever pivot in position in relation to the lever, a lever pivot slot which receives the lever pivot in a way which enables the lever pivot to move towards the punching end in the resting position and away from the punching end in the punching position, and a longitudinal contact member which is fixedly disposed underneath the lever at a position corresponding to the punching members so that a first end of the longitudinal contact member which is farther away from the punching end abuts against the punching members in the resting position, and a second end of the longitudinal contact member which is nearer to the punching end abuts against the punching members in the punching position. ## Claims ### Claim 1 An effort-saving paper punch which comprises a base with a plurality of punching holes disposed towards a punching end; a plurality of spring-loaded punching members disposed corresponding to the plurality of punching holes; a pair of vertical supports mounted on the base; a lever pivotably connected to the pair of vertical supports by means of a lever pivot to pivot between a resting position and a punching position, and the lever pivot is fixed in position in relation to the lever; characterized in that: a lever pivot slot is provided at each of the vertical supports for receiving the lever pivot in a way which enables the lever pivot to move towards the punching end in the resting position and away from the punching end in the punching position; a longitudinal contact member is fixedly disposed underneath the lever at a position corresponding to the punching members so that a first end of the longitudinal contact member which is farther away from the punching end abuts against the punching members in the resting position; and as the lever pivots from the resting position to the punching position, the first end of the longitudinal contact member moves farther away from the punching end until a second end of the longitudinal contact member which is nearer to the punching end abuts against the punching members in the punching position. ### Claim 2 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that the longitudinal contact member is in form of a U-shaped depression on the lever. ### Claim 3 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that the longitudinal contact surface is in form of a U-shaped bracket mounted underneath the lever. ### Claim 4 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that the longitudinal contact member is in form of an integral element with its lateral length sufficient to cover all punching members. ### Claim 5 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that the longitudinal contact member is in form of separate elements, each of which has a lateral length sufficient to cover one of the punching members. ### Claim 6 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that the lever slot is slanted with its lower end disposed nearer the punching end of the paper punch and its upper end disposed farther from the punching end of the paper punch. ### Claim 7 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that each of the punching members is horizontally adjustable in position. ### Claim 8 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that each of the punching members comprises a spring-loaded punch, a bracket for receiving the punch and allowing the punch to move vertically for punching, and a fastening member removably attached to the bracket and slidable along a horizontal guiding slot provided on a guiding plate mounted on the base for moving the punching member along the horizontal guiding slot; the punching holes on the base are configured correspondingly to allow the punching members to punch at any possible positions. ### Claim 9 (depends on 8) The effort-saving paper punch as in claim 8, characterized in that the fastening member is in form of a screw. ### Claim 10 (depends on 8) The effort-saving paper punch as in claim 8, characterized in that the guiding plate is provided with dimensional markers to indicate corresponding punching positions. ### Claim 11 (depends on 1) The effort-saving paper punch as in claim 1, characterized in that three punching members are provided; the punching member in middle is horizontally slidable between an operational position and a non-operational position; the longitudinal contact member is configured to abut against the punching member in middle when the punching member in middle is in the operational position, and not to abut against the punching member in middle when the punching member in middle is in the non-operational position.