GB1341579A - Spiral springs and methods of making them - Google Patents

Spiral springs and methods of making them

Info

Publication number
GB1341579A
GB1341579A GB3997771A GB1341579DA GB1341579A GB 1341579 A GB1341579 A GB 1341579A GB 3997771 A GB3997771 A GB 3997771A GB 1341579D A GB1341579D A GB 1341579DA GB 1341579 A GB1341579 A GB 1341579A
Authority
GB
United Kingdom
Prior art keywords
arbor
spring
coiled
making
spiral
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
Application number
GB3997771A
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.)
Tensator Ltd
Original Assignee
Tensator 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 Tensator Ltd filed Critical Tensator Ltd
Publication of GB1341579A publication Critical patent/GB1341579A/en
Expired legal-status Critical Current

Links

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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/10—Spiral springs with turns lying substantially in plane surfaces
    • 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
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/08—Coiling wire into particular forms to flat spiral
    • 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
    • Y10T29/49609—Spring making

Abstract

1341579 Coiling spirals TENSATOR Ltd 12 May 1972 [25 Aug 1971] 39977/71 Heading B3E [Also in Division F2] A method of making a spiral spring comprises forming a strip of spring material so that one end is set to form a spiral coil while the remainder is straight or is set to coil spirally around the coiled end with a radius of curvature substantially greater than that of the coiled end, and then backwinding at least the coiled end. Fig. 1 shows a configuration before baokwinding, in which one quarter of the total length may be close or open coiled at 1. An attachment part 3 is then secured to an arbor and the spring is reverse wound about the arbor, so as to acquire a permanent set in the reverse sense corresponding to the unstressed configuration of Fig. 3. While still wound on the arbor, the spring is inserted into a casing to which end 4 is attached. The arbor may then be arranged to drive a seat belt reel, providing a rapid rise in torque during initial winding up, followed by a slower rise in torque.
GB3997771A 1971-08-25 1971-08-25 Spiral springs and methods of making them Expired GB1341579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3997771 1971-08-25

Publications (1)

Publication Number Publication Date
GB1341579A true GB1341579A (en) 1973-12-28

Family

ID=10412534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3997771A Expired GB1341579A (en) 1971-08-25 1971-08-25 Spiral springs and methods of making them

Country Status (3)

Country Link
US (1) US3788631A (en)
GB (1) GB1341579A (en)
IE (1) IE36801B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001681A1 (en) * 1983-10-14 1985-04-25 Baumann & Cie Ag Process for manufacturing a spiral-shaped driving spring
WO1990002275A1 (en) * 1988-08-22 1990-03-08 William King Springs and reels
EP1904345A1 (en) * 2005-07-18 2008-04-02 Key Safety Systems, Inc. Seat belt height adjuster

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548169A (en) * 1978-09-29 1980-04-05 Nippon Kinzoku Kk Spring for seat belt take-up device
US4635755A (en) * 1985-01-16 1987-01-13 Ametek, Inc. Backwound pre-stressed spring motor and method
US4836529A (en) * 1986-09-09 1989-06-06 Ikegami Tsushinki Co., Ltd. Sorting machine
US7055244B2 (en) * 2002-03-14 2006-06-06 Anand Waman Bhagwat Method of manufacturing flat wire coil springs to improve fatigue life and avoid blue brittleness
DE10258956A1 (en) * 2002-12-16 2004-07-15 Albert Frei Workpiece holding device
JP2004339945A (en) * 2003-05-13 2004-12-02 Asahi Denso Co Ltd Throttle grip device
US6792908B1 (en) 2003-06-25 2004-09-21 Starting Industrial Co., Ltd. Recoil assembly for a pull starter
CN100358648C (en) * 2005-12-27 2008-01-02 扬州核威碟形弹簧制造有限公司 Method for rolling cutting cone scrole spring
CN100482405C (en) * 2007-04-30 2009-04-29 陈守林 Technique for fabricating planar whirl spring of flat wire in hard state
JP6629049B2 (en) * 2015-11-18 2020-01-15 芦森工業株式会社 Shade device for vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899193A (en) * 1959-08-11 Low gradient spring motor
US1881997A (en) * 1930-01-02 1932-10-11 Vere B Browne Method of making noncorrodible springs
US2548735A (en) * 1948-10-01 1951-04-10 Vacuum Cleaner Corp Of America Art of springmaking
US2647743A (en) * 1949-06-29 1953-08-04 Eastern Metals Res Co Inc Spring device
US2937866A (en) * 1959-03-09 1960-05-24 Rogerson Harold Scott Overwind stop for clock springs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001681A1 (en) * 1983-10-14 1985-04-25 Baumann & Cie Ag Process for manufacturing a spiral-shaped driving spring
EP0140202A2 (en) * 1983-10-14 1985-05-08 Baumann & Cie. AG Method of making a spiral drive spring
EP0140202A3 (en) * 1983-10-14 1985-06-12 Baumann & Cie. Ag Method of making a spiral drive spring
WO1990002275A1 (en) * 1988-08-22 1990-03-08 William King Springs and reels
EP1904345A1 (en) * 2005-07-18 2008-04-02 Key Safety Systems, Inc. Seat belt height adjuster
EP1904345A4 (en) * 2005-07-18 2010-11-03 Key Safety Systems Inc Seat belt height adjuster

Also Published As

Publication number Publication date
US3788631A (en) 1974-01-29
IE36801B1 (en) 1977-03-02
IE36801L (en) 1973-02-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee