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    • 10. 发明专利
    • SAW
    • JPH04119802A
    • 1992-04-21
    • JP24183590
    • 1990-09-11
    • YUUEMU KOUGIYOU KK
    • IKEDA SHIROMIYAWAKI UICHI
    • B27B33/04B27B33/10
    • PURPOSE:To obtain a saw with novel saw teeth for ripping having excellent cutting quality by forming lower blades vertical to a surface in the sawing direction to all saw teeth and inserting and disposing ripping teeth, in which upward teeth are formed to a nose side face, at every fixed tooth number of normal ripping teeth. CONSTITUTION:Lower blades 11 or 21 vertical to a surface in the sawing direction A1 are formed to first ripping teeth 1 and second ripping teeth 2, and the second ripping teeth 2 are arranged at every fixed tooth number such as two tooth number of the first ripping teeth 1. Upward teeth 22 are shaped to the side face sides at the nose sections of the second ripping teeth 2, the upward teeth 22 are formed to side faces on the set-forming sides of the second ripping teeth 2, and sharp pointed head-shaped tops 23 are formed by the inner edges of the lower blades 21 and the noses of the upward teeth 22. The first ripping teeth 1 mainly cut wood by the lower end sides of the lower blades 11 on cutting operation, but the second ripping teeth 2 principally cut wood by the sharp tops 23, and the bottoms of cut striped grooves are cut.