JPS61198713U - - Google Patents

Description

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

第１図から第５図までの図面は、この考案の一
実施例を示すものであり、第１図はボルトの斜視
図、第２図は同側面図、第３図はボルト締め付け
の初期状態を示す断面図、第４図はボルト締め付
けの完了直前の状態を示す断面図、第５図はボル
トの締り部が切断された状態を示す断面図、第６
図は六角穴付きボルトの従来の締め付け態様を示
す部分断面図である。 １……ボルト、２……ねじ部、３……シヤンク
部、４……第一ヘツド部、５……第二ヘツド部、
６……しぼり部、９……係合部、１０，１１……
締付治具。 The drawings from Fig. 1 to Fig. 5 show one embodiment of this invention, in which Fig. 1 is a perspective view of the bolt, Fig. 2 is a side view of the same, and Fig. 3 is the initial state of bolt tightening. 4 is a sectional view showing the state immediately before bolt tightening is completed, FIG. 5 is a sectional view showing the state where the tightened part of the bolt is cut, and FIG.
The figure is a partial sectional view showing a conventional tightening mode of a hexagon socket head bolt. 1... Bolt, 2... Threaded part, 3... Shank part, 4... First head part, 5... Second head part,
6... Squeezing part, 9... Engaging part, 10, 11...
Tightening jig.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ねじ部を有したシヤンク部と、このシヤンク部
と一体に形成され、シヤンク部より大径をなす第
一ヘツド部と、シヤンク部の反対側において上記
第一ヘツド部に一体に形成され、締付治具への係
合部を有する第二ヘツド部と、上記第一ヘツド部
と第二ヘツド部との間に形成され、所定締付トル
クで切断されるしぼり部とを備えたことを特徴と
するボルト。 a shank portion having a threaded portion; a first head portion integrally formed with the shank portion and having a larger diameter than the shank portion; and a first head portion integrally formed with the first head portion on the opposite side of the shank portion and configured to tighten It is characterized by comprising a second head part having an engaging part for the jig, and a squeeze part formed between the first head part and the second head part and cut by a predetermined tightening torque. Bolt.