US1451936A - Method of forming compound springs - Google Patents

Method of forming compound springs Download PDF

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Publication number
US1451936A
US1451936A US50138421A US1451936A US 1451936 A US1451936 A US 1451936A US 50138421 A US50138421 A US 50138421A US 1451936 A US1451936 A US 1451936A
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US
United States
Prior art keywords
springs
connector
forming compound
sections
turns
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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
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Leonard A Young
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Leonard A Young
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Application filed by Leonard A Young filed Critical Leonard A Young
Priority to US50138421 priority Critical patent/US1451936A/en
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Publication of US1451936A publication Critical patent/US1451936A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs 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
    • F16F1/04Wound springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F33/00Tools or devices specially designed for handling or processing wire fabrics or the like
    • B21F33/04Connecting ends of helical springs for mattresses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F35/00Making springs from wire
    • B21F35/003Multi-filament springs, e.g. made of stranded, braided, cable or multi-filament material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs 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
    • F16F1/04Wound springs
    • F16F1/12Attachments or mountings
    • F16F1/13Attachments or mountings comprising inserts and spacers between the windings for changing the mechanical or physical characteristics of the spring
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49609Spring making
    • Y10T29/49613Spring making for human comfort
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/71Rod side to plate or side
    • Y10T403/7171Two rods encompassed by single connector

Description

Apr. 17, 1923. 11,451,936

L. A. YOUNG METHOD OF FORMING COMPOUND SPRINGS Filed 3311f. 20 1921 2 Sheets-Sheet 1 IN VEN TOR.

L EONARD A You/v6 ATTORNEY.

L. A. YOUNG METHOD OF FORMING COMPOUND SPRINGS Filed Sent. 20 1921 2 Sheets-Sheet 2 INVENTOR. LEONARD A. You/v6.

@ORNEY.

ill

D A. 'YQUNG, 015 DETROIT, li'illECItIZIGAIQ'.

IKETHOD OE FGEllIING COIVJIIPOU'ND SPRINGS.

Application filed September 20, 1921. Serial No. 1,884.

To all whom 2'25 may concern.

Be it known that l, Lnonsnn A. Yonne. a citizen oi the United States, residing at Detroit, in the county of Wayne and State of lwiichigan, have invented certain new and useful improvements in Methods of Forming Compound Springs, 0;? which the following is a specification.

in the manufacture of compound spiral springs such as are used for and known as body springs in seat springs, mattress structures and in backs for seats, great diiiiculty has hitherto been found in uniting the two sections of each spring firmly at the point of unction. in a way that would permit turning out quantities of such springs at a minimum cost of labor and time. The peculiar stress under which the springs are placed when compressed, the tendency of the spirals to enlarge and contract as the springs are shortened and elongated under vibration and the tendency of the coils to bend sidcwise, all malre the matter of securing the sections together one of difficulty-which has hitherto required a number of operations pliant or like connecting members being used to hold the sections together and these devices requiring the use of presser or hand tools for applying them.

This invention relates to a method of con struction of compound springs of the type having two end sections of difl'erent pitch and gauge in a manner that prevents their separation, while at the same time the prooess extremely simple and minimizes the time and cost of operation.

The invention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

in the drawings, F 1 is a view showing pair of springs with the connector so disposed as to be brought together in conformity with the initial. step of the method;

Fig. 2 is a view in detail showing a portion or the spring and connector united;

Fig. 3 is a View in detail taken on or about line III-IH of Fig. 2;

Fig. 4 is a view in detail showing one way of locking the parts together;

Fig. 5 is a view showing another method of locking the parts;

Figs. 6 and 'Z are views showing the method of applying the locking method, indicated at Fig. 5;

Fig. 8 is a view in detail of one modifica-' tion of the connector.

In carrying out this method, a pair of spring sections and 2 are formed with their inner mating end turns 3 and etot substantially the same diameter whereby they may rest on each other. A connector 5 in the form of a hollow, resiliently walled bendable cylinder is likewise formed with an inner diameter sufficient to permit the insertion of end turns 3 and 4 at the opposite extremities of the connector. The wall 6 of this connector may be formed by a closely wound spiral as indicated in Fig. 1, or may be resilient or bendable sheet metal as shown in Fig. 8. In carrying out this method, the two end turns 3 and a are inserted in opposite relation at the ends of the connector and are then screwed together, the connector conforming itself to the curvature and pitch of the spirals and causing them to ride on each other into superposed relation. In the formation of the spiral connector, the end turns 7 and 8 thereof are so contracted or are of such diameter as to each receive a single wire only and thereby act as an abutment for the opposing member.

it desired, where springs are to be used for severe service, another step in the method of operations consists in anchoring the parts against unscrewing. This may he done as indicated in a by indenting the parts or the end portions of the connector and the extremities of the end turns may be secured together as indicated in Fig. 5. In Fig. 8 1'. illustrate a connector 5' of resilient or bendable sheet metal. To connect the springs they are manipulated substantially the same as the coiled spring type of connector.

Obviously changes in the detail of construction may be made without departing from the snirit of the invention and i do not care to limit myself to any particular form or arrangement of parts.

I claim as my invention:

1. A method of forming compound spiral springs which consists in inserting the end coils of a pair of spring sections in the opposite ends of a hollow resilient, substantially cylindrical connector and in rotating the sections until the end turns are in superposed and axially aligned position, with the connector conformed to the curvature and pitch oi? the enclosed whorls.

2. A method of forming compound spiral springs out of a pair of spring sections, consisting in inserting the end turns of the sections in a hollow resilient cylindrical connector, in forcing the inserted whorls past each other by rotation of the sections and in thereby bending the connector into resilient gripping contact with the spirals to which it is forced to conform.

. 3. A method of forming compound spiral springs of two opposed sections interconnected at their mating ends, which consists in forcing the mating end turns each into an end of a straight resilient cylindrical connector and in rotating them relatively until they are in abutment for a major portion of their circumference with the connector bent into conformation thereto and in yielding frictional engagement therewith.

it. A. method of forming compound spiral springs of two opposed sections interconnected at their mating ends which consists in forcing the mating end turns each into an end of a straight, resilient, cylindrical connector, in rotating them relatively until they are in abutment for a major portion of their circumference with the connector bent into conformation thereto and in yielding frictional engagement therewith and in forming a positive interlock between the conector and the enclosed whorls.

In testimony whereof I aflix my signature.

LEONARD A. YOUNG.

US50138421 1921-09-20 1921-09-20 Method of forming compound springs Expired - Lifetime US1451936A (en)

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Application Number Priority Date Filing Date Title
US50138421 US1451936A (en) 1921-09-20 1921-09-20 Method of forming compound springs

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641758A (en) * 1948-06-24 1953-06-09 Spring Unit Dev Co Spring coil for cushions, mattresses, and the like
US2669275A (en) * 1951-02-05 1954-02-16 Fenton George Donald Apparatus for installing clips in coil springs
US2678685A (en) * 1948-02-27 1954-05-18 Nicholas T Volsk Flat spring and structure
US2706615A (en) * 1951-10-03 1955-04-19 John A Zublin Normally curved flexible resilient drill guide and method for producing the same
US2861826A (en) * 1954-10-11 1958-11-25 Ideal Ind Spring type connector
US2863212A (en) * 1954-10-19 1958-12-09 Cardwell Westinghouse Co Apparatus for assembly of cushioning devices
US3190633A (en) * 1963-08-05 1965-06-22 Charles A Jack Coil spring joint
US20040158930A1 (en) * 2003-02-19 2004-08-19 Dreamwell, Ltd. Stranded mattress spring
US20040158929A1 (en) * 2003-02-19 2004-08-19 Dreamwell, Ltd. Stranded mattress spring
US20050005354A1 (en) * 2003-02-19 2005-01-13 Dreamwell Ltd Multi-stranded coil spring
EP1599683A2 (en) * 2003-02-19 2005-11-30 Dreamwell, Ltd. Multi-stranded coil spring

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678685A (en) * 1948-02-27 1954-05-18 Nicholas T Volsk Flat spring and structure
US2641758A (en) * 1948-06-24 1953-06-09 Spring Unit Dev Co Spring coil for cushions, mattresses, and the like
US2669275A (en) * 1951-02-05 1954-02-16 Fenton George Donald Apparatus for installing clips in coil springs
US2706615A (en) * 1951-10-03 1955-04-19 John A Zublin Normally curved flexible resilient drill guide and method for producing the same
US2861826A (en) * 1954-10-11 1958-11-25 Ideal Ind Spring type connector
US2863212A (en) * 1954-10-19 1958-12-09 Cardwell Westinghouse Co Apparatus for assembly of cushioning devices
US3190633A (en) * 1963-08-05 1965-06-22 Charles A Jack Coil spring joint
US20050005354A1 (en) * 2003-02-19 2005-01-13 Dreamwell Ltd Multi-stranded coil spring
US20040158929A1 (en) * 2003-02-19 2004-08-19 Dreamwell, Ltd. Stranded mattress spring
US20040158930A1 (en) * 2003-02-19 2004-08-19 Dreamwell, Ltd. Stranded mattress spring
US6944899B2 (en) 2003-02-19 2005-09-20 Dreamwell, Ltd. Stranded mattress spring
EP1599683A2 (en) * 2003-02-19 2005-11-30 Dreamwell, Ltd. Multi-stranded coil spring
US7047581B2 (en) * 2003-02-19 2006-05-23 Dreamwell, Ltd. Stranded mattress spring
EP1599683A4 (en) * 2003-02-19 2006-06-28 Dreamwell Ltd Multi-stranded coil spring
US7168117B2 (en) 2003-02-19 2007-01-30 Dreamwell Ltd. Multi-stranded coil spring
US20070118987A1 (en) * 2003-02-19 2007-05-31 Dreamwell, Ltd. Multi-stranded coil spring
US8099811B2 (en) 2003-02-19 2012-01-24 Dreamwell, Ltd. Multi-stranded coil spring
US8689380B2 (en) 2003-02-19 2014-04-08 Dreamwell, Ltd. Multi-stranded coil spring

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