JPH02112799U

JPH02112799U -

Info

Publication number: JPH02112799U
Application number: JP1986289U
Authority: JP
Priority date: 1989-02-22
Filing date: 1989-02-22
Publication date: 1990-09-10

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の一部を切欠いた断
面図、第２図は本考案の別の実施例の一部を切欠
いた断面図、第３図はセグメントの一例を示す斜
視図、第４図はボルト締結機を示す斜視図、第５
図は従来のボルト及びナツトからなるセグメント
締結装置の一例を示す断面図である。１はセグメント、２は箱穴、３はボルト穴、６
はボルトホルダー、８はナツトランナー、１１は
ナツト頭、１３は筒状出張部、１４はめねじ部、
１５，１５′はナツト、１６はボルト頭、１８は
ロツド部、１９はおねじ部、２０，２０′はボル
トを示す。 Fig. 1 is a partially cutaway sectional view of one embodiment of the present invention, Fig. 2 is a partially cutaway sectional view of another embodiment of the present invention, and Fig. 3 is a perspective view showing an example of a segment. , FIG. 4 is a perspective view showing the bolt fastening machine, and FIG. 5 is a perspective view showing the bolt fastening machine.
The figure is a sectional view showing an example of a conventional segment fastening device consisting of bolts and nuts. 1 is segment, 2 is box hole, 3 is bolt hole, 6
is a bolt holder, 8 is a nut runner, 11 is a nut head, 13 is a cylindrical projecting part, 14 is a female thread part,
15 and 15' are nuts, 16 is a bolt head, 18 is a rod part, 19 is a male thread part, and 20 and 20' are bolts.

Claims

[Scope of utility model registration request]

Consisting of bolts and nuts that match bolt holes in box holes provided on segment connection end faces with bolt holes in box holes on other segment connection end faces, and pass through the matched bolt holes to fasten segments together. A segment fastening device includes a nut having a nut head at one end, a cylindrical protruding portion at the other end, and a female thread on the inner circumferential wall of the cylindrical protruding portion, and a nut having a bolt head at one end and a rod at the other end. 1. A segment fastening device comprising: a bolt having a male threaded portion that can engage with the female threaded portion at the distal end of the rod portion.