JPS5642206A - Production of bellow for photographic apparatus - Google Patents
Production of bellow for photographic apparatusInfo
- Publication number
- JPS5642206A JPS5642206A JP11828879A JP11828879A JPS5642206A JP S5642206 A JPS5642206 A JP S5642206A JP 11828879 A JP11828879 A JP 11828879A JP 11828879 A JP11828879 A JP 11828879A JP S5642206 A JPS5642206 A JP S5642206A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- blank material
- shape
- sheet blank
- bending lines
- 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
- Structure And Mechanism Of Cameras (AREA)
- Diaphragms And Bellows (AREA)
- Details Of Measuring And Other Instruments (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
PURPOSE: To obtain superior shape retentivity and suppress secular change by imparting bending habits to a sheet blank material for bellows with a high-frequency welder or the like.
CONSTITUTION: A sheet blank material 1 is made essentially of, for example, vinyl chloride, and its rear surface has been treated to a matte surface. This sheet is beforehand cut to a rectangular shape. The bending lines 2 (2a) to become the seams for folding so as to be made into bellows are formed by inscribing with a high-frequency welder 4 having plural high-frequency electrodes from above after placing the sheet blank material 1 on a buffer 3. The bending lines 2a formed in this way are of a groove shape and this results in that the bending habits of a V-shape are given along these bending lines 2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11828879A JPS5642206A (en) | 1979-09-14 | 1979-09-14 | Production of bellow for photographic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11828879A JPS5642206A (en) | 1979-09-14 | 1979-09-14 | Production of bellow for photographic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642206A true JPS5642206A (en) | 1981-04-20 |
Family
ID=14732952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11828879A Pending JPS5642206A (en) | 1979-09-14 | 1979-09-14 | Production of bellow for photographic apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642206A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006122211A (en) * | 2004-10-27 | 2006-05-18 | Yoshida Dental Mfg Co Ltd | Device for automatically setting condition for x-ray photography by image recognition |
JP2007054514A (en) * | 2005-08-26 | 2007-03-08 | Ge Medical Systems Global Technology Co Llc | Cushion and x-ray ct apparatus |
-
1979
- 1979-09-14 JP JP11828879A patent/JPS5642206A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006122211A (en) * | 2004-10-27 | 2006-05-18 | Yoshida Dental Mfg Co Ltd | Device for automatically setting condition for x-ray photography by image recognition |
JP2007054514A (en) * | 2005-08-26 | 2007-03-08 | Ge Medical Systems Global Technology Co Llc | Cushion and x-ray ct apparatus |
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