发明名称 KEY STRUCTURE
摘要 <P>PROBLEM TO BE SOLVED: To impart a feeling of woodiness and to prevent support members from being damaged during width machining of a wood part. <P>SOLUTION: A key structure 600 is constituted by bonding and fixing a wood part 111 made of wood to the reverse surface of the front of a rear end 110B of an upper plate body 110 made of synthetic resin and forming a lengthwise gap CL1 between the wood part 111 and rear end 110B. At a part of a region AR2 which is a substantial entirety of a region AR1 which is behind the rear end of the wood part 111 and where the wood part 111 does not exist, retreated parts 110a and 110b which are retreated inwardly along the width from both side parts 111a and 111b of a minimum width part 111M of the wood part 111 are formed, so that the blade of a cutting tool does not interfere with the retreated parts 110a and 110b during the width machining of the minimum width part 111M of the wood part 111. <P>COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005107485(A) 申请公布日期 2005.04.21
申请号 JP20040121734 申请日期 2004.04.16
申请人 YAMAHA CORP 发明人 SHIMOMUKAI YOICHIRO;NISHIDA KENICHI;OSUGA ICHIRO
分类号 G10B3/12;G10C3/12;G10C3/18;G10D1/00;G10H1/34 主分类号 G10B3/12
代理机构 代理人
主权项
地址