JPS5642206A - Production of bellow for photographic apparatus - Google Patents

Production of bellow for photographic apparatus

Info

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
Application number
JP11828879A
Other languages
Japanese (ja)
Inventor
Tetsuo Morita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujinon Corp
Original Assignee
Fuji Photo Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP11828879A priority Critical patent/JPS5642206A/en
Publication of JPS5642206A publication Critical patent/JPS5642206A/en
Pending legal-status Critical Current

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
JP11828879A 1979-09-14 1979-09-14 Production of bellow for photographic apparatus Pending JPS5642206A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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