US3881338A - Method of bending a metal sheet and a corner produced thereby - Google Patents
Method of bending a metal sheet and a corner produced thereby Download PDFInfo
- Publication number
- US3881338A US3881338A US388955A US38895573A US3881338A US 3881338 A US3881338 A US 3881338A US 388955 A US388955 A US 388955A US 38895573 A US38895573 A US 38895573A US 3881338 A US3881338 A US 3881338A
- Authority
- US
- United States
- Prior art keywords
- groove
- face
- selected line
- bending edge
- bending
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/20—Bending sheet metal, not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S29/00—Metal working
- Y10S29/033—Scoring with other step
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49982—Coating
Definitions
- FIG. 8 is a fragmentary side view of the panel of FIG. 6 after bending
- the face 18 of the metal sheet 15 may receive a brittle decorative coating 28, such as a vitreous enamel coating.
- the coating 28 is applied to the face 18 after indenting the metal sheet 15 (FIG. 2) but prior to bending the metal sheet 15 (FIG. 3). Since the girth G, of the groove 17 remains undisturbed during bending of the metal sheet 15, after bending, the decorative coating 28 is substantially free of rust initiating fissures, spalling and similar flaws.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US388955A US3881338A (en) | 1971-06-02 | 1973-08-16 | Method of bending a metal sheet and a corner produced thereby |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14924571A | 1971-06-02 | 1971-06-02 | |
US388955A US3881338A (en) | 1971-06-02 | 1973-08-16 | Method of bending a metal sheet and a corner produced thereby |
Publications (1)
Publication Number | Publication Date |
---|---|
US3881338A true US3881338A (en) | 1975-05-06 |
Family
ID=26846574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US388955A Expired - Lifetime US3881338A (en) | 1971-06-02 | 1973-08-16 | Method of bending a metal sheet and a corner produced thereby |
Country Status (1)
Country | Link |
---|---|
US (1) | US3881338A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4094056A (en) * | 1976-08-20 | 1978-06-13 | Aisin Seiki Kabushiki Kaisha | Decorative trim strip |
US4262514A (en) * | 1979-10-22 | 1981-04-21 | H. H. Robertson Company | Method and apparatus for bending a laminated panel |
FR2712123A1 (en) * | 1992-08-17 | 1995-05-12 | Loh Rittal Werk Gmbh Co | Profiled chassis for a rack of an electrical cabinet |
US5593075A (en) * | 1995-09-19 | 1997-01-14 | Schumer; Donald A. | Parking garage key or document holder |
US6209884B1 (en) * | 1996-11-26 | 2001-04-03 | Robert Bosch Gmbh | Radial sealing ring and method for producing it |
US6331328B1 (en) * | 1998-01-09 | 2001-12-18 | Meyer Mfg Co. | Method for applying silkscreen pattern to cookware |
US20060236520A1 (en) * | 2005-04-26 | 2006-10-26 | Arai Industrial Co., Ltd. | Method for manufacturing headrest stay |
US20060277964A1 (en) * | 2005-06-09 | 2006-12-14 | Basavaraj-Rajashekhar Kappali | Method for fabricating an exterior part of a camera |
US20120171506A1 (en) * | 2009-09-29 | 2012-07-05 | Jfe Steel Corporation | Curved parts and method for manufacturing the same |
CN102672010A (en) * | 2012-06-13 | 2012-09-19 | 南通虹波机械有限公司 | Small-taper slide carriage processing method |
CN102728667A (en) * | 2012-06-20 | 2012-10-17 | 曾红 | Metal plate bending structure |
JP2013166164A (en) * | 2012-02-15 | 2013-08-29 | Kobe Steel Ltd | Method for bending metal plate |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US918366A (en) * | 1907-10-08 | 1909-04-13 | Hamill J Quereau | Reinforced concrete. |
US944536A (en) * | 1906-06-04 | 1909-12-28 | Emmons W Bonfield | Cardboard-creasing machine. |
US1992835A (en) * | 1934-06-29 | 1935-02-26 | Gen Electric | Method of bending conduits |
US2728479A (en) * | 1951-02-09 | 1955-12-27 | Union Bag & Paper Corp | Honeycomb pad |
US3175655A (en) * | 1962-02-16 | 1965-03-30 | Donn Prod Inc | Controlled expansion structural beam and grid structure including same |
US3376670A (en) * | 1966-08-31 | 1968-04-09 | Excel Corp | Window sash and method for making same |
US3465424A (en) * | 1967-01-26 | 1969-09-09 | Smith Corp A O | Method of forming glass coated steel articles |
US3478483A (en) * | 1967-04-26 | 1969-11-18 | Robert A Baker | Panel filter construction |
US3667180A (en) * | 1970-11-03 | 1972-06-06 | Robertson Co H H | Fastening means for double-skin foam core building construction panel |
-
1973
- 1973-08-16 US US388955A patent/US3881338A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US944536A (en) * | 1906-06-04 | 1909-12-28 | Emmons W Bonfield | Cardboard-creasing machine. |
US918366A (en) * | 1907-10-08 | 1909-04-13 | Hamill J Quereau | Reinforced concrete. |
US1992835A (en) * | 1934-06-29 | 1935-02-26 | Gen Electric | Method of bending conduits |
US2728479A (en) * | 1951-02-09 | 1955-12-27 | Union Bag & Paper Corp | Honeycomb pad |
US3175655A (en) * | 1962-02-16 | 1965-03-30 | Donn Prod Inc | Controlled expansion structural beam and grid structure including same |
US3376670A (en) * | 1966-08-31 | 1968-04-09 | Excel Corp | Window sash and method for making same |
US3465424A (en) * | 1967-01-26 | 1969-09-09 | Smith Corp A O | Method of forming glass coated steel articles |
US3478483A (en) * | 1967-04-26 | 1969-11-18 | Robert A Baker | Panel filter construction |
US3667180A (en) * | 1970-11-03 | 1972-06-06 | Robertson Co H H | Fastening means for double-skin foam core building construction panel |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4094056A (en) * | 1976-08-20 | 1978-06-13 | Aisin Seiki Kabushiki Kaisha | Decorative trim strip |
US4262514A (en) * | 1979-10-22 | 1981-04-21 | H. H. Robertson Company | Method and apparatus for bending a laminated panel |
FR2712123A1 (en) * | 1992-08-17 | 1995-05-12 | Loh Rittal Werk Gmbh Co | Profiled chassis for a rack of an electrical cabinet |
US5593075A (en) * | 1995-09-19 | 1997-01-14 | Schumer; Donald A. | Parking garage key or document holder |
US6209884B1 (en) * | 1996-11-26 | 2001-04-03 | Robert Bosch Gmbh | Radial sealing ring and method for producing it |
US6331328B1 (en) * | 1998-01-09 | 2001-12-18 | Meyer Mfg Co. | Method for applying silkscreen pattern to cookware |
US20060236520A1 (en) * | 2005-04-26 | 2006-10-26 | Arai Industrial Co., Ltd. | Method for manufacturing headrest stay |
US20060277964A1 (en) * | 2005-06-09 | 2006-12-14 | Basavaraj-Rajashekhar Kappali | Method for fabricating an exterior part of a camera |
US7231800B2 (en) * | 2005-06-09 | 2007-06-19 | Hewlett-Packard Deveopment Company, L.P. | Method for fabricating an exterior part of a camera |
US20120171506A1 (en) * | 2009-09-29 | 2012-07-05 | Jfe Steel Corporation | Curved parts and method for manufacturing the same |
JP2013166164A (en) * | 2012-02-15 | 2013-08-29 | Kobe Steel Ltd | Method for bending metal plate |
CN102672010A (en) * | 2012-06-13 | 2012-09-19 | 南通虹波机械有限公司 | Small-taper slide carriage processing method |
CN102728667A (en) * | 2012-06-20 | 2012-10-17 | 曾红 | Metal plate bending structure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: EQUITABLE BANK, NATIONAL ASSOCIATION, AS AGENT Free format text: SECURITY INTEREST;ASSIGNOR:H.H. ROBERTSON COMPANY;REEL/FRAME:005261/0382 Effective date: 19891013 |
|
AS | Assignment |
Owner name: FIRST CITY SECURITIES INC., 499 PARK AVE., NEW YOR Free format text: SECURITY INTEREST;ASSIGNOR:H. H. ROBERTSON COMPANY;REEL/FRAME:005261/0098 Effective date: 19891013 |
|
AS | Assignment |
Owner name: WELLS FARGO BANK, N.A., A NATIONAL BANKING ASSOCIA Free format text: SECURITY INTEREST;ASSIGNOR:ROBERTSON CECO CORPORATION, A DE CORP.;REEL/FRAME:005617/0421 Effective date: 19901108 Owner name: WELLS FARGO BANK, N.A., A NATIONAL BANKING ASSOCIA Free format text: SECURITY INTEREST;ASSIGNOR:ROBERTSON-CECO CORPORATION, A DE CORP.;REEL/FRAME:005498/0434 Effective date: 19901108 Owner name: H. H. ROBERTSON, A CORP. OF DELAWARE, PENNSYLVANIA Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MARYLAND NATIONAL BANK;REEL/FRAME:005518/0120 Effective date: 19901107 Owner name: H. H. ROBERTSON, A CORP. OF DELAWARE, PENNSYLVANIA Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST CITY SECURITIES INC.;REEL/FRAME:005518/0137 Effective date: 19901106 |
|
AS | Assignment |
Owner name: ROBERTSON-CECO CORPORATION, A DE CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE NOVEMBER 8, 1990;ASSIGNOR:H.H. ROBERTSON COMPANY;REEL/FRAME:005587/0020 Effective date: 19901105 |
|
AS | Assignment |
Owner name: WELLS FARGO BANK, N.A. A NATIONAL BANKING ASSOCIA Free format text: SECURITY INTEREST;ASSIGNOR:ROBERTSON-CECO CORPORATION, A DE CORP.;REEL/FRAME:006066/0524 Effective date: 19920131 |