JPH0198855U - - Google Patents
Info
- Publication number
- JPH0198855U JPH0198855U JP19486287U JP19486287U JPH0198855U JP H0198855 U JPH0198855 U JP H0198855U JP 19486287 U JP19486287 U JP 19486287U JP 19486287 U JP19486287 U JP 19486287U JP H0198855 U JPH0198855 U JP H0198855U
- Authority
- JP
- Japan
- Prior art keywords
- knurled
- threaded
- washer
- outer diameter
- threaded part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Ladders (AREA)
Description
図面は本考案の実施例を示すものであつて、第
１図は一部を省略した拡大側面図であつて一部断
面を表わし、第２図はねじ加工前の一部側面図、
第３図は別の実施例を示す側面図である。
１……足場ボルト、３……軸棒、４……ねじ部
、５……足掛部、６……ローレツト部、７……ロ
ーレツト凸部、８……座金、９……かしめ縁、１
０……環状溝。
The drawings show an embodiment of the present invention, in which Fig. 1 is an enlarged side view with a part omitted and shows a partial cross section, and Fig. 2 is a partial side view before threading.
FIG. 3 is a side view showing another embodiment. 1...Scaffolding bolt, 3...Axis rod, 4...Threaded part, 5...Stool part, 6...Knurled part, 7...Knurled convex part, 8...Washer, 9...Clinched edge, 1
0...Annular groove.
Claims (1)
なる軸棒に於いて、そのねじ部と足掛部間の周囲
にローレツト部を刻設して、該ローレツトの凸部
外径をねじ部のねじ加工前の外径より大にし、ね
じ部のねじ加工前の外径より稍大にしてローレツ
ト凸部外径より稍小さい内径の座金を上記ローレ
ツト部に押し込み固着し、ねじ部にねじ加工する
と共に、ねじ部のローレツト側端部にかしめ縁を
設けて座金をかしめ付けしてなる足場ボルト。 In the shaft rod consisting of a threaded part and a foothold part with a wider diameter than the threaded part, a knurled part is carved around the circumference between the threaded part and the footrest part, and the outer diameter of the convex part of the knurled part is A washer with an inner diameter slightly larger than the outer diameter of the threaded part before threading, and a slightly smaller inner diameter than the outer diameter of the knurled convex part is pushed into the knurled part and fixed, and a washer is screwed into the threaded part. Scaffolding bolts that are processed, and are made by providing a caulking edge on the knurled end of the threaded portion and caulking a washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19486287U JPH0198855U (en) | 1987-12-24 | 1987-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19486287U JPH0198855U (en) | 1987-12-24 | 1987-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0198855U true JPH0198855U (en) | 1989-07-03 |
Family
ID=31485567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19486287U Pending JPH0198855U (en) | 1987-12-24 | 1987-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0198855U (en) |
-
1987
- 1987-12-24 JP JP19486287U patent/JPH0198855U/ja active Pending