JPS63110714U

JPS63110714U -

Info

Publication number: JPS63110714U
Application number: JP256087U
Authority: JP
Priority date: 1987-01-12
Filing date: 1987-01-12
Publication date: 1988-07-16

Description

[Brief explanation of the drawing]

第１〜３図は本考案の一実施例としての締付工
具を示すもので、第１図はその使用状態を示す断
面図、第２図は雄螺子部における雄螺子部の底面
図、第３図は雄螺子部材の正面図である。１……雄螺子部材としてのボルト、２……雄螺
子部、２ａ……第一雄螺子部、２ｂ……第一平面
部、３……ボルト外径、４……軌跡、５……雌螺
子部材としてのナツト、５ａ……角部、６……雌
螺子部、６ａ……第二平面部、６ｂ……第一雌螺
子部、７……谷の径、８……軌跡、９……ボルト
頭、１０，１１……固定部材、１２……隙間、１
３……螺合弛み防止具、１３ａ……本体、１３ｂ
……中央部、１３ｃ……先端部、１３ｄ……端部
、１４……スプリングワツシヤー、１５……段付
欠切部。 Figures 1 to 3 show a tightening tool as an embodiment of the present invention, with Figure 1 being a sectional view showing its use, Figure 2 being a bottom view of the male threaded part, and Figure 2 being a bottom view of the male threaded part. FIG. 3 is a front view of the male screw member. DESCRIPTION OF SYMBOLS 1... Bolt as a male thread member, 2... Male thread part, 2a... First male thread part, 2b... First plane part, 3... Bolt outer diameter, 4... Locus, 5... Female Nut as a screw member, 5a...corner, 6...female thread, 6a...second plane part, 6b...first female thread, 7...diameter of valley, 8...locus, 9... ...Bolt head, 10, 11...Fixing member, 12...Gap, 1
3...Threaded loosening prevention device, 13a...Main body, 13b
...Central part, 13c...Tip part, 13d...End part, 14...Spring washer, 15...Stepped notch part.

Claims

[Scope of utility model registration request]

In a tightening tool having a male thread part and a female thread part, a plurality of first flat parts are provided in the axial direction of the male thread part, and the first flat part is located within the trajectory of the outer diameter of the male thread part, A second flat portion corresponding to the first male screw portion provided in the male screw portion is provided in the axial direction of the male screw member and the female screw portion, and a first female screw portion corresponding to the first flat portion. and a female screw member located outside the trajectory of the diameter of the valley of the first female screw portion, and at least the head of the member on the extension of the first female screw portion or the female screw member. 1. A tightening tool, characterized in that a notch is provided on either side, and a screw loosening preventer is provided to prevent loosening of the screw engagement between the male screw member and the female screw member.