JPS6440317A - Plastic sheet with score - Google Patents

Plastic sheet with score

Info

Publication number
JPS6440317A
JPS6440317A JP19610487A JP19610487A JPS6440317A JP S6440317 A JPS6440317 A JP S6440317A JP 19610487 A JP19610487 A JP 19610487A JP 19610487 A JP19610487 A JP 19610487A JP S6440317 A JPS6440317 A JP S6440317A
Authority
JP
Japan
Prior art keywords
groove
score
holes
bottom part
plastic sheet
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
Application number
JP19610487A
Other languages
Japanese (ja)
Other versions
JP2536538B2 (en
Inventor
Tadashi Hashimoto
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.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP62196104A priority Critical patent/JP2536538B2/en
Publication of JPS6440317A publication Critical patent/JPS6440317A/en
Application granted granted Critical
Publication of JP2536538B2 publication Critical patent/JP2536538B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Cartons (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE:To make an angle of bend correct and the flatness after assembling favorable by a method wherein holes are interruptedly, formed at the bottom part of a groove, which forms a score, along the long direction of the groove. CONSTITUTION:A score 1 is provided as a groove 11, which is formed on the surface of a plastic sheet 2 so as to easily bend the sheet. Interrupted holes 3 are made at the bottom part of the groove 11 along the longitudinal direction of the bottom part. The interrupted holes 3 scatter sand uniformize the strains, which develop in the groove 11 by bending the sheet, in the long direction of the groove, so as to prevent local stress concentration and shape restoration by spring-back from occurring. The groove 11 and the interrupted holes 3 are simultaneously made by pinching a plastic sheet between a scoring blade 4, on which unevenness 42 obtained by notching a blade point 41 intermittently is produced, and a flat cradle 5.
JP62196104A 1987-08-05 1987-08-05 Plastic sheet with folding line Expired - Fee Related JP2536538B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62196104A JP2536538B2 (en) 1987-08-05 1987-08-05 Plastic sheet with folding line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62196104A JP2536538B2 (en) 1987-08-05 1987-08-05 Plastic sheet with folding line

Publications (2)

Publication Number Publication Date
JPS6440317A true JPS6440317A (en) 1989-02-10
JP2536538B2 JP2536538B2 (en) 1996-09-18

Family

ID=16352297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62196104A Expired - Fee Related JP2536538B2 (en) 1987-08-05 1987-08-05 Plastic sheet with folding line

Country Status (1)

Country Link
JP (1) JP2536538B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02249626A (en) * 1989-03-24 1990-10-05 Mitsubishi Plastics Ind Ltd Ruled line providing method
JPH03114325U (en) * 1990-03-09 1991-11-25
US5302435A (en) * 1992-03-24 1994-04-12 Mitsubishi Plastics Industries Limited Plastic sheet with a ruled line for bending
JPH09104080A (en) * 1995-08-04 1997-04-22 Gerhard Seufert Cut piece of sheet for packaging
WO1999065786A1 (en) * 1997-01-17 1999-12-23 Fuji Seal, Inc. Sheet and blade for shaping sheet bent portion
JP2000158562A (en) * 1998-11-27 2000-06-13 Mitsubishi Plastics Ind Ltd Ruled line forming blade for plastic sheet
WO2005087582A1 (en) * 2004-03-10 2005-09-22 Simonson Peter M Life preserver assembly
JPWO2005101066A1 (en) * 2004-04-12 2008-03-06 古河電気工業株式会社 Light reflector
JP2009184730A (en) * 2007-08-03 2009-08-20 Suntory Holdings Ltd Shipping box, corrugated cardboard blank sheet, and rule mark ring assembly
JP2010036930A (en) * 2008-08-01 2010-02-18 Esutsuu Corporation:Kk Folding type storing box

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496852U (en) * 1972-04-19 1974-01-21
JPS6139544U (en) * 1984-08-20 1986-03-12 眞幾 佐藤 Simple chemical liquid divider

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496852U (en) * 1972-04-19 1974-01-21
JPS6139544U (en) * 1984-08-20 1986-03-12 眞幾 佐藤 Simple chemical liquid divider

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02249626A (en) * 1989-03-24 1990-10-05 Mitsubishi Plastics Ind Ltd Ruled line providing method
JPH03114325U (en) * 1990-03-09 1991-11-25
US5302435A (en) * 1992-03-24 1994-04-12 Mitsubishi Plastics Industries Limited Plastic sheet with a ruled line for bending
JPH09104080A (en) * 1995-08-04 1997-04-22 Gerhard Seufert Cut piece of sheet for packaging
WO1999065786A1 (en) * 1997-01-17 1999-12-23 Fuji Seal, Inc. Sheet and blade for shaping sheet bent portion
US6666808B1 (en) 1998-06-17 2003-12-23 Fuji Seal, Inc. Sheet and blade for shaping a sheet bent portion
JP2000158562A (en) * 1998-11-27 2000-06-13 Mitsubishi Plastics Ind Ltd Ruled line forming blade for plastic sheet
WO2005087582A1 (en) * 2004-03-10 2005-09-22 Simonson Peter M Life preserver assembly
JPWO2005101066A1 (en) * 2004-04-12 2008-03-06 古河電気工業株式会社 Light reflector
JP2009184730A (en) * 2007-08-03 2009-08-20 Suntory Holdings Ltd Shipping box, corrugated cardboard blank sheet, and rule mark ring assembly
JP2010036930A (en) * 2008-08-01 2010-02-18 Esutsuu Corporation:Kk Folding type storing box

Also Published As

Publication number Publication date
JP2536538B2 (en) 1996-09-18

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees