US3861339A - Method of joining the edge portions of two sheets - Google Patents

Method of joining the edge portions of two sheets Download PDF

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Publication number
US3861339A
US3861339A US437714A US43771474A US3861339A US 3861339 A US3861339 A US 3861339A US 437714 A US437714 A US 437714A US 43771474 A US43771474 A US 43771474A US 3861339 A US3861339 A US 3861339A
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US
United States
Prior art keywords
ribs
edge portion
sheets
sheet
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.)
Expired - Lifetime
Application number
US437714A
Other languages
English (en)
Inventor
Hiroyuki Aida
Norihiro Tsuneishi
Hideo Takizawa
Yoshiyuki Miyabayashi
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Application granted granted Critical
Publication of US3861339A publication Critical patent/US3861339A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/026—Reinforcing the connection by locally deforming
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49936—Surface interlocking

Definitions

  • each Sheet is Provided with a rect- [58] Field Of Search 29/463, 462, 509, 512, angular pattern of ribs, and the Sheets are placed 5 3 5 505; 13 C, 11 p 11 R, gether with one edge portion extending beyond the 1 N, 11 R other. The former is folded back over the latter so that intersecting portions of the ribs are compressed to [56] References Cited firmly lock the sheets together.
  • the present invention relates to a method of joining the edge portions of two sheets without using supplementary means such as mechanical fasteners, metal-tometal adhesives or welding techniques.
  • Sheet metal members are often joined by a lock joint which is produced by folding an edge portion of one member back over an edge portion of the other member.
  • Examples of combinations of such sheet metal members are, in an automotive vehicle, inner and outer wall members of a door structure, a front fender and a front fender supporting hood, and an outer wall member and an associated reinforcing member of a trunk structure.
  • the sheet metal members may be subjected to additional processing such as, for example, spot-welding or bonding with a metal-to-metal adhesive during the assembly operation to provide reinforcement for the lock joint produced in the assembled structure.
  • the sheet metal members are spot-welded when they are being joined together, the members tend to be distorted, and additional operations and equipment are necessitated to remedy the distortion of the members combined; especially with members which are oriented outwardly in working positions in a final product such as an automotive vehicle.
  • sustained maintenance and servicing efforts are indispensable of jigs used for the spot-welding operations.
  • a metal-to-metal adhesive is used to reinforce the lock joint between the sheet metal members, it becomes difficult to maintain the initially fixed relative positions of the joined members throughout the succeeding steps of the assembly operation during which the adhesive applied to the members remains wet.
  • Sheet metal members joined together using a metal-to-metal adhesive are thus still subject to relative displacement until they are painted and baked during the final stages of the assembly operation.
  • the present invention contemplates elimination of all the above mentioned drawbacks which are inherent in joining edge portions of two sheet metal members by a prior art folding process.
  • FIG. 1 is a cross sectional view of two sheet metal members whose edges are joined by a prior art folding method
  • FIG. 2 is a perspective view of a preferred method of joining the edges of two sheets according to the invention.
  • FIG. 3 is a cross sectional view of sheets joined by the method of FIG. 2
  • FIGS. 4A and 4B are plan views of a door assembly joined by a method ofthe invention.
  • FIGS. 4A and 4B show an example of practical structural members joined by a method of the invention.
  • An automobile door assembly includes a door 6 and a door inner panel 8 joined to the door 6.
  • FIG. 4A shows the outside of the door 6
  • FIG. 4B shows the outside of the door 6 and the inner panel 8.
  • the methods of the invention relate to joining the inner panel 8 to the door 6 by folding an edge portion 6a of the door 6 back over the peripheral edge of the inner panel 8.
  • FIGS. 4A and 4B are exemplary only, and the invention is not limited to automotive doors or other automotive structures.
  • FIGS. 1 to 3 can be considered as illustrating methods of joining the inner panel 8 to the door 6 within a portion surrounded by a broken circle S.
  • edge portions of sheet metal members 10 and 12 are joined by a conventional folding method so that an edge portion 10a of the sheet metal member 10 is folded back over an edge portion 12a of the other sheet metal member 12 so that the latter is tightly gripped by the former.
  • a gap 14 is inevitably produced between the inner surface of the folded end of the sheet metal member 10 and the edge of the edge portion 12a of the sheet metal member 12.
  • the goal of the present invention is to join the edges of the sheet metal members 10 and 12 by a sufficiently tight and rigid lock joint which can be produced without the use of mechanical fasteners, metal-to-metal adhesives or spot-welding.
  • FIG. 2 illustrates a method of joining two sheets 16 and 20 at their edges according to the invention, which have edge portions 16a and 20a respectively.
  • Ribs l8 and secondary ribs 18' are formed on a surface of the edge portion 16a
  • ribs 22 and secondary ribs 22' are formed on a surface of the edge portion 20a.
  • the ribs and secondary ribs of each sheet are generally parallel to one another, and the secondary ribs 18' and 22' are generally perpendicular to the respective ribs 18 and 22.
  • the ribs 18 and 22 are shown as being parallel to the edges of the sheets 16 and 20 respectively and the secondary ribs 18 and 22' perpendicular thereto, but such need not be the case.
  • the sheets are then placed together with the edge portion 20a extending beyond the edge portion 16a, and the edge portion 20a is tightly folded back over the edge portion 16a in the direction of an arrow A as shown.
  • the sheets 16 and 20 are placed together using any known method of alignment so that when the edge portion a is folded back over the edge portion 16a, the surfaces of the sheets having the ribs and secondary ribs formed thereon engage with each other as shown in FIG. 3, and intersecting portions of ribs and secondary ribs are compressed to prevent relative movement between the sheets.
  • the alignment is such that the ribs 18 are spaced from the ribs 22. This is to avoid a weak joint due to engagement of the ribs 18 and 22 along their entire length.
  • a similar relationship exists between the secondary ribs 18' and 22'. If the alignment is such that the ribs 18 and 22 are parallel to each other and the secondary ribs 18 and 22' are thus also parallel to each other upon folding, intersecting portions will be formed between the ribs 18 and the secondary ribs 22, and between the ribs 22 and the secondary ribs 18' as points of a regular rectangular matrix. The material of the ribs and secondary ribs in these intersecting portions will be compressed to provide a tight lock joint between the sheets 16 and 20 in spite of the gap 14 between a folded end 20b of the sheet 20 and the gripped edge of the edge portion 16a.
  • the ribs and secondary ribs may be oriented in a mutually rectangular pattern upon folding as described above, such need not be the case within the scope of the invention.
  • the edge portion 20a may be folded over the edge portion 16a in such a manner that an angle other than 90 is provided between the ribs of one sheet and the secondary ribs of the other sheet.
  • the ribs 18 will intersect both the secondary ribs 22' and the ribs 22, and the ribs 22 will intersect both the secondary ribs 18' and the ribs 18.
  • the ribs or secondary ribs as provided may either be oriented parallel to each other upon folding and therefore not intersect, or be nonparallel to each other and intersect as in the method illustrated. In the former case, the ribs of one sheet are spaced entirely from the ribs of the other sheet, and in the latter case, the ribs of one sheet are spaced at portions thereof from the ribs of the other sheet.
  • the invention provides a tight lock joint without supplementary welding, adhesives. mechanical fasteners, etc., as is clear from the description. any of these methods may be employed to increase the strength of the lock joint provided by a method of the invention if desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Body Structure For Vehicles (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Connection Of Plates (AREA)
US437714A 1973-01-31 1974-01-29 Method of joining the edge portions of two sheets Expired - Lifetime US3861339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973013525U JPS49115446U (enExample) 1973-01-31 1973-01-31

Publications (1)

Publication Number Publication Date
US3861339A true US3861339A (en) 1975-01-21

Family

ID=11835555

Family Applications (1)

Application Number Title Priority Date Filing Date
US437714A Expired - Lifetime US3861339A (en) 1973-01-31 1974-01-29 Method of joining the edge portions of two sheets

Country Status (5)

Country Link
US (1) US3861339A (enExample)
JP (1) JPS49115446U (enExample)
DE (1) DE2403179A1 (enExample)
FR (1) FR2216470B1 (enExample)
GB (1) GB1434677A (enExample)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195582A (en) * 1992-08-21 1993-03-23 General Motors Corporation Sealing junction for a heat exchanger
US5237734A (en) * 1991-04-01 1993-08-24 General Motors Corporation Method of interlocking hemmed together panels
US5325632A (en) * 1992-10-21 1994-07-05 The Budd Company Composite door assembly
US5671522A (en) * 1996-01-29 1997-09-30 Northrop Grumman Corporation Method and apparatus for sealing a pressure vessel
WO2001094138A1 (en) * 2000-06-06 2001-12-13 Oxford Automotive, Inc. Modular closure for motor vehicles and method of making the same
US6386123B1 (en) * 2000-08-30 2002-05-14 Jakel Incorporated Blower housing with maximized interior spacing
US20020168562A1 (en) * 1998-08-03 2002-11-14 Jun Funatsu Multiple uneven plate, multiple uneven plate bending mold, multiple uneven plate manufacturing method and separator using multiple uneven plate
US6528176B1 (en) * 1999-06-09 2003-03-04 Sanyo Machine Works, Ltd. Structure of hemmed together metal plate materials
US20030067187A1 (en) * 2001-10-10 2003-04-10 Ford Global Technologies, Inc. Hem flange
US6640601B2 (en) 2000-12-27 2003-11-04 Sanyo Machine America Corporation Electric hemming press
US20040244178A1 (en) * 2001-09-06 2004-12-09 John Inch Pot and pan washing machine
US20050269027A1 (en) * 2001-10-10 2005-12-08 Ford Motor Company Method of making a body panel assembly
US20070125920A1 (en) * 2003-12-01 2007-06-07 Kim Heglund Method for production of a mast shaped body
WO2006029864A3 (de) * 2004-09-16 2007-09-27 Brose Fahrzeugteile Kraftfahrzeugmodul
US8087720B2 (en) 2008-09-23 2012-01-03 GM Global Technology Operations LLC Vehicle closure panel assembly and method
US11389855B2 (en) * 2017-11-15 2022-07-19 Aisin Corporation Method for manufacturing swaged structure and swaged structure
US11607933B2 (en) 2019-11-20 2023-03-21 Ford Global Technologies, Llc Automotive panel hem stabilizing assembly and method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718484A (en) * 1980-08-15 1988-01-12 Snydergeneral Corporation Heat exchanger unit
EP0054815A1 (en) * 1980-12-22 1982-06-30 Ford-Werke Aktiengesellschaft Method of joining an object to an article
DE19927208B4 (de) * 1999-06-15 2006-01-19 Thyssenkrupp Drauz Nothelfer Gmbh Verfahren und Vorrichtung zum randseitigen Verbinden von Blechen
DE102013003662B4 (de) 2013-03-02 2023-08-10 Audi Ag Verfahren zum Herstellen einer Falzverbindung, sowie hiermit hergestellter Bauteilverbund
CN104923676A (zh) * 2015-06-26 2015-09-23 丰拓(河南)轻合金有限公司 一种铝板缝合装置
DE102016001835A1 (de) 2016-02-17 2017-08-17 Audi Ag Blechteilanordnung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US518767A (en) * 1894-04-24 Conductor-pipe and method of joining edges of same
US697956A (en) * 1901-11-26 1902-04-15 Packers Sanitary Can Company Solderless side seam for sheet-metal vessels.
US749116A (en) * 1904-01-05 Top plate for registers
US1796114A (en) * 1927-10-18 1931-03-10 Budd Edward G Mfg Co Door and method of constructing same
US1808561A (en) * 1927-01-08 1931-06-02 Budd Edward G Mfg Co Pressed metal vehicle body
US3680910A (en) * 1971-04-01 1972-08-01 Gen Motors Corp Vehicle body closure panel
US3719986A (en) * 1970-07-13 1973-03-13 E Ardolino Method of joining sheet-like areas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US518767A (en) * 1894-04-24 Conductor-pipe and method of joining edges of same
US749116A (en) * 1904-01-05 Top plate for registers
US697956A (en) * 1901-11-26 1902-04-15 Packers Sanitary Can Company Solderless side seam for sheet-metal vessels.
US1808561A (en) * 1927-01-08 1931-06-02 Budd Edward G Mfg Co Pressed metal vehicle body
US1796114A (en) * 1927-10-18 1931-03-10 Budd Edward G Mfg Co Door and method of constructing same
US3719986A (en) * 1970-07-13 1973-03-13 E Ardolino Method of joining sheet-like areas
US3680910A (en) * 1971-04-01 1972-08-01 Gen Motors Corp Vehicle body closure panel

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237734A (en) * 1991-04-01 1993-08-24 General Motors Corporation Method of interlocking hemmed together panels
US5195582A (en) * 1992-08-21 1993-03-23 General Motors Corporation Sealing junction for a heat exchanger
US5325632A (en) * 1992-10-21 1994-07-05 The Budd Company Composite door assembly
US5671522A (en) * 1996-01-29 1997-09-30 Northrop Grumman Corporation Method and apparatus for sealing a pressure vessel
US20020168562A1 (en) * 1998-08-03 2002-11-14 Jun Funatsu Multiple uneven plate, multiple uneven plate bending mold, multiple uneven plate manufacturing method and separator using multiple uneven plate
US6833214B2 (en) 1998-08-03 2004-12-21 Toyota Jidosha Kabushiki Kaisha Multiple uneven plate and separator using multiple uneven plate
US6490778B1 (en) * 1998-08-03 2002-12-10 Toyota Jidosha Kabushiki Kaisha Multiple uneven plate, multiple uneven plate bending mold, multiple uneven plate manufacturing method and separator using multiple uneven plate
US6528176B1 (en) * 1999-06-09 2003-03-04 Sanyo Machine Works, Ltd. Structure of hemmed together metal plate materials
WO2001094138A1 (en) * 2000-06-06 2001-12-13 Oxford Automotive, Inc. Modular closure for motor vehicles and method of making the same
US6386123B1 (en) * 2000-08-30 2002-05-14 Jakel Incorporated Blower housing with maximized interior spacing
USRE40818E1 (en) 2000-08-30 2009-07-07 Gatley Jr William Stuart Blower housing with maximized interior spacing
US6553923B2 (en) 2000-08-30 2003-04-29 William Stuart Gatley, Jr. Blower housing with maximized interior spacing
US6640601B2 (en) 2000-12-27 2003-11-04 Sanyo Machine America Corporation Electric hemming press
US20040244178A1 (en) * 2001-09-06 2004-12-09 John Inch Pot and pan washing machine
US7162788B2 (en) * 2001-09-06 2007-01-16 Metcraft, Inc. Pot and pan washing machine
US20050269027A1 (en) * 2001-10-10 2005-12-08 Ford Motor Company Method of making a body panel assembly
US7115322B2 (en) * 2001-10-10 2006-10-03 Ford Global Technologies, Llc Hem flange
US7422652B2 (en) 2001-10-10 2008-09-09 Ford Motor Company Method of making a body panel assembly
US20030067187A1 (en) * 2001-10-10 2003-04-10 Ford Global Technologies, Inc. Hem flange
US20070125920A1 (en) * 2003-12-01 2007-06-07 Kim Heglund Method for production of a mast shaped body
US7918026B2 (en) 2003-12-01 2011-04-05 Juralco A/S Method for production of a mast shaped body
WO2006029864A3 (de) * 2004-09-16 2007-09-27 Brose Fahrzeugteile Kraftfahrzeugmodul
US8087720B2 (en) 2008-09-23 2012-01-03 GM Global Technology Operations LLC Vehicle closure panel assembly and method
DE102009042139B4 (de) * 2008-09-23 2012-03-22 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Verschlussplattenelementanordnung, Fahrzeugmotorhauben-Plattenelementanordnung und Verfahren zum Ausbilden einer Verschlussplattenelementanordnung
US11389855B2 (en) * 2017-11-15 2022-07-19 Aisin Corporation Method for manufacturing swaged structure and swaged structure
US11607933B2 (en) 2019-11-20 2023-03-21 Ford Global Technologies, Llc Automotive panel hem stabilizing assembly and method

Also Published As

Publication number Publication date
JPS49115446U (enExample) 1974-10-02
DE2403179A1 (de) 1974-08-01
GB1434677A (en) 1976-05-05
FR2216470A1 (enExample) 1974-08-30
FR2216470B1 (enExample) 1976-11-26

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