ECCENTRICITY DETERMINATION IMPLEMENT FOR SCREW MATERIAL,申请号JP20040209320-传众专利搜索

ECCENTRICITY DETERMINATION IMPLEMENT FOR SCREW MATERIAL

申请公布号：JP2006029985(A)

申请号：JP20040209320

申请日期：2004.07.16

申请公布日期：2006.02.02

申请人：

NITTO SEIKO CO LTD

发明人：KUNIMATSU MASATOMO

分类号：G01B3/42;F16B35/00;G01B5/00

主分类号：G01B3/42

摘要：PROBLEM TO BE SOLVED: To obtain an eccentricity determination implement for screw materials capable of simply determining whether or not there is an eccentricity between a leg part and a driving hole. SOLUTION: The eccentricity determination implement determines whether or not the center of the driving hole 5 is eccentric with respect to the center line of a screw material 2, and its body member 10 is composed of an insertion hole 11 for inserting the leg portion 3 and a retaining hole 12 for supporting the bearing surface of its head part. While, a lid member 20 is provided which has a fitting section 22 to fit in the retaining hole 12, and a guide hole 21 formed at a position coinciding with that of the insertion hole 11 when this fitting section fits in the retaining hole. Moreover, a plug gauge 30 is arranged so as to be insertable into this guide hole 21. By inspecting whether or not the plug gauge 30 can fit in the driving hole 5, after inserting the leg part 3 of the screw material 2 into the insertion hole 11, the eccentricity determination implement for screw materials determines whether or not the eccentricity of the driving hole 5 is within a tolerance. Accordingly, whether or not there is an eccentricity exceeding the tolerance between the center of the driving hole and the leg part can be simply determined visually. Moreover, an original function of transmitting the driving force of a driver bit to the driving hole can be sufficiently performed also. COPYRIGHT: (C)2006,JPO&NCIPI