WO2001012937A3 - Laser welded door hardware and method of manufacture - Google Patents

Laser welded door hardware and method of manufacture Download PDF

Info

Publication number
WO2001012937A3
WO2001012937A3 PCT/US2000/022004 US0022004W WO0112937A3 WO 2001012937 A3 WO2001012937 A3 WO 2001012937A3 US 0022004 W US0022004 W US 0022004W WO 0112937 A3 WO0112937 A3 WO 0112937A3
Authority
WO
WIPO (PCT)
Prior art keywords
knob assembly
halves
welding process
knob
welder
Prior art date
Application number
PCT/US2000/022004
Other languages
French (fr)
Other versions
WO2001012937A2 (en
Inventor
John Hildebrandt
Jeffrey Gilbert
Original Assignee
Emhart Inc
John Hildebrandt
Jeffrey Gilbert
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 Emhart Inc, John Hildebrandt, Jeffrey Gilbert filed Critical Emhart Inc
Priority to AU66332/00A priority Critical patent/AU6633200A/en
Publication of WO2001012937A2 publication Critical patent/WO2001012937A2/en
Publication of WO2001012937A3 publication Critical patent/WO2001012937A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0004—Lock assembling or manufacturing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)

Abstract

A thin-walled, laser-welded multi-piece door knob assembly (20) is disclosed in which two halves (22, 24) of a knob assembly (20) are formed by standard stamping or forming processes and an interface edge is formed thereon. The stampings are placed in abutting alignment and joined together in a welding process, which fuses the two halves together with no filler material. During the welding process, each of the knob halves (22, 24) are constrained to their nominal shape as they are held in appropriate position and rotated together on a common axis. During the welding process, the welder (52) is radially manipulated with respect to the interface edges (30, 34) to maintain a fixed distance between the welder and the knob assembly (20) regardless of the circumferential configuration of the knob assembly. Sizing fixtures (40) may be utilized to constrain the knob halves (22, 24) and facilitate loading thereof through the use of articulated holders. Upon completion of the welding process, the welded knob assembly (20) is further finished utilizing sanding and polishing steps to remove any visible weld joints. Subsequent plating, physical vapor deposition or powdered coating is used to provide the desired surface finish.
PCT/US2000/022004 1999-08-13 2000-08-11 Laser welded door hardware and method of manufacture WO2001012937A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU66332/00A AU6633200A (en) 1999-08-13 2000-08-11 Laser welded door hardware and method of manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14901499P 1999-08-13 1999-08-13
US60/149,014 1999-08-13

Publications (2)

Publication Number Publication Date
WO2001012937A2 WO2001012937A2 (en) 2001-02-22
WO2001012937A3 true WO2001012937A3 (en) 2001-08-30

Family

ID=22528425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/022004 WO2001012937A2 (en) 1999-08-13 2000-08-11 Laser welded door hardware and method of manufacture

Country Status (2)

Country Link
AU (1) AU6633200A (en)
WO (1) WO2001012937A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116352269B (en) * 2023-05-31 2023-07-28 广州兔鼠实业有限公司 Laser welding equipment and method for processing hardware parts

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US301303A (en) * 1884-07-01 Tjiomas tayloe
US450115A (en) * 1891-04-07 taylor
US678458A (en) * 1900-06-30 1901-07-16 Us Steel Lock Company Knob.
US1590629A (en) * 1925-12-19 1926-06-29 Frederic S Julius Cover for doorknobs
US1759087A (en) * 1929-07-18 1930-05-20 Keeler Brass Co Knob for furniture
US1929188A (en) * 1927-10-06 1933-10-03 Kurz Kasch Company Hollow knob
US2078865A (en) * 1936-02-26 1937-04-27 John D Maclaury Hand knob
US3249990A (en) * 1962-05-02 1966-05-10 Schlage Lock Co Method of making a door knob
US3599307A (en) * 1969-08-05 1971-08-17 Us Air Force Production of hollow ball or roller bearing by swaging or other compressive method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US301303A (en) * 1884-07-01 Tjiomas tayloe
US450115A (en) * 1891-04-07 taylor
US678458A (en) * 1900-06-30 1901-07-16 Us Steel Lock Company Knob.
US1590629A (en) * 1925-12-19 1926-06-29 Frederic S Julius Cover for doorknobs
US1929188A (en) * 1927-10-06 1933-10-03 Kurz Kasch Company Hollow knob
US1759087A (en) * 1929-07-18 1930-05-20 Keeler Brass Co Knob for furniture
US2078865A (en) * 1936-02-26 1937-04-27 John D Maclaury Hand knob
US3249990A (en) * 1962-05-02 1966-05-10 Schlage Lock Co Method of making a door knob
US3599307A (en) * 1969-08-05 1971-08-17 Us Air Force Production of hollow ball or roller bearing by swaging or other compressive method

Also Published As

Publication number Publication date
WO2001012937A2 (en) 2001-02-22
AU6633200A (en) 2001-03-13

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