JPH0240111U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係るボルトの回り止め構造体
の一実施例を一部側面で示す縦断面図、第２図は
第１図の上面図、第３図は第１図における回り止
めリングを示す斜視図、第４図は従来のボルトの
回り止め構造体を一部側面で示す縦断面図である
。 １……固定物、２……被締付物、３……ねじ穴
、４……凹所、５……ボルト、６……溶接、７…
…凹所内たて溝、８……ボトル頭部のたて溝、９
……隙間、１０……すり割り、１１……回り止め
リング、１２……ピン、１３……六角穴。 Fig. 1 is a vertical cross-sectional view showing a partial side view of an embodiment of the bolt rotation prevention structure according to the present invention, Fig. 2 is a top view of Fig. 1, and Fig. 3 is a rotation prevention ring in Fig. 1. FIG. 4 is a longitudinal cross-sectional view partially showing a conventional bolt rotation prevention structure in side view. 1... fixed object, 2... object to be tightened, 3... screw hole, 4... recess, 5... bolt, 6... welding, 7...
... Vertical groove in the recess, 8 ... Vertical groove on the bottle head, 9
... Gap, 10 ... Slot, 11 ... Stop ring, 12 ... Pin, 13 ... Hexagonal hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被締付物に形成されたねじ穴の上部にボルトが
ねじ込まれた際、ボルトの頭部が挿入される凹所
を形成し、かつこの凹所の側面にたて溝を形成す
るとともに、ボルトの頭部にもたて溝を形成し、
ボルトが被締付物にねじ込まれた状態でボルトの
頭部側面と凹所の内面との間に回り止めリングを
挿着し、前記両たて溝内に回り止めリングの側面
の一部を押圧して被締付物と回り止めリングおよ
びボルトの頭部とを一体的に固定してなることを
特徴とするボルトの回り止め構造体。 When the bolt is screwed into the upper part of the screw hole formed in the object to be fastened, a recess is formed into which the head of the bolt is inserted, and a vertical groove is formed on the side of this recess, and the bolt A vertical groove is formed on the head of the
With the bolt screwed into the object to be tightened, insert a detent ring between the side surface of the bolt head and the inner surface of the recess, and insert a part of the side surface of the detent ring into both vertical grooves. A bolt rotation prevention structure characterized in that an object to be tightened, a rotation prevention ring, and a bolt head are integrally fixed by pressing.