JPS5570431A - Production of grating body - Google Patents
Production of grating bodyInfo
- Publication number
- JPS5570431A JPS5570431A JP14572578A JP14572578A JPS5570431A JP S5570431 A JPS5570431 A JP S5570431A JP 14572578 A JP14572578 A JP 14572578A JP 14572578 A JP14572578 A JP 14572578A JP S5570431 A JPS5570431 A JP S5570431A
- Authority
- JP
- Japan
- Prior art keywords
- stems
- crosspieces
- thin
- holes
- portions
- 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.)
- Granted
Links
Landscapes
- Fencing (AREA)
Abstract
PURPOSE: To eliminate defects owing to welding methods and make volume production of metal-made grating bodies of high durability well suited for gates, fences, etc. by forming thin-walled portions to middle stems and pressure holding the middle stems fitted to crosspieces thereby assembling these at a breath.
CONSTITUTION: Through-holes 2, 2,... are pierced to the upper and lower inner side faces of crosspieces 1, 1. The portions of middle stems 3, 3... corresponding to the through-hole portions are made thin and are fitted into thise holes. From the upper and lower outer sides of the crosspieces 1, 1, the middle stems 3, 3... are pressed to buckle thin-walled portions of the middle stems to form outward protruding flights 4, 4..., which are then engaged with the through-holes 2, 2..., whereby the crosspieces and middle stems are integrated. To form the specified position of the middle stem 3 used here into the thin-wall form, the axial center position of split die fittings is pressed to the pipe end of the middle stem 3 by a punch 6 to form an outward build-up portion, after which this build-up portion is cut, whereby it may be produced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14572578A JPS5570431A (en) | 1978-11-24 | 1978-11-24 | Production of grating body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14572578A JPS5570431A (en) | 1978-11-24 | 1978-11-24 | Production of grating body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5570431A true JPS5570431A (en) | 1980-05-27 |
JPS6211933B2 JPS6211933B2 (en) | 1987-03-16 |
Family
ID=15391681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14572578A Granted JPS5570431A (en) | 1978-11-24 | 1978-11-24 | Production of grating body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570431A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53130833A (en) * | 1977-04-20 | 1978-11-15 | Masabumi Narita | Construction and method of joining fence* gate door* and so on |
-
1978
- 1978-11-24 JP JP14572578A patent/JPS5570431A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53130833A (en) * | 1977-04-20 | 1978-11-15 | Masabumi Narita | Construction and method of joining fence* gate door* and so on |
Also Published As
Publication number | Publication date |
---|---|
JPS6211933B2 (en) | 1987-03-16 |
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