CUTTING TOOL

• Main Author: UCHIYAMA TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 12.07.2018
• Subjects: BROACHING; CUTTING; FILING; HAND CUTTING TOOLS; HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PLANING; SAWING; SCRAPING; SEVERING; SHEARING; SLOTTING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a cutting tool that is able to reduce costs by combining with a steel material lower in price than high-speed steel and is able to solve a problem caused by a combination with the low-cost steel material.SOLUTION: A cutting tool 1 according to the present invention comprises: a fixed blade 12 and a movable blade 16 that are able to intersect and slide mutually and cut a work-piece W interposed between them; a fixed-blade attaching part 14 to which the fixed blade 12 is fixed so as to be attachable to or detachable from it; a movable-blade attaching part 18 to which the movable blade 16 is fixed so as to be attachable to or detachable from it and which is opened or closed with respect to the fixed-blade attaching part 14; and a drive gear 22 that rotates the movable-blade attaching part 18. The fixed-blade attaching part 14 has, in a face opposite to the movable-blade attaching part 18, a first recess 36 in a position near the fixed blade 12 and in a front position in a direction in which the movable blade 16 advances during cutting operation. The movable-blade attaching part 18 has in a face opposite to the fixed-blade mounting part 14, a second recess 38 in a position near the movable blade 16 and in a front position in a direction in which the fixed blade 12 advances during the cutting operation. An outer peripheral edge 18a has a sector gear 20 that is engaged with a drive gear 22.SELECTED DRAWING: Figure 1 【課題】高速度鋼よりも廉価な鋼材を併用することでコストの低減が可能で、廉価な鋼材の併用によって生じる課題の解決が可能な切断工具を提供する。【解決手段】本発明に係る切断工具１は、相互に交差・摺接可能でワークＷを挟んで切断する固定刃１２および可動刃１６と、固定刃１２が着脱可能に固定される固定刃取付部１４と、可動刃１６が着脱可能に固定されて固定刃取付部１４に対して開閉する可動刃取付部１８と、可動刃取付部１８を回動させる駆動歯車２２とを備え、固定刃取付部１４は、可動刃取付部１８との対向面において、固定刃１２の近傍位置で切断動作時に可動刃１６が進行する方向の前方位置に第１凹部３６を有し、可動刃取付部１８は、固定刃取付部１４との対向面において、可動刃１６の近傍位置で切断動作時に固定刃１２が進行する方向の前方位置に第２凹部３８を有し、外周縁１８ａに駆動歯車２２に噛合される扇形歯車２０を有する。【選択図】図１