Class 140/103 - Coil springs

Subclass of Class 140 - Wireworking
Definition: Coiling the ends of wire loops or other portions thereof.
No. of patents: 26
Last issue date: 02/26/2008

Number	Title	Issue Date
7334445	Method for producing an end lug of a spring member formed of a strand of wire, and apparatus for manufacturing same A method and apparatus for producing an end lug of a spring member formed of a strand of wire, the strand of wire is initially gripped by two clamping jaws or a pair of tongs, held between said clamping jaws and, subsequently, at a predetermined distance behind the ...	02/26/2008
7311124	Method of producing a spring wire and wire thus produced Method of producing spring wires shaped as a cylinder. The wire includes at least one first plurality of layers of wound fibres, the layers being disposed on top of one another and impregnated with a matrix. The first plurality of layers includes at least two stacke...	12/25/2007
7198068	Cassette pigtailing machine for a coil spring A pigtailing machine includes a B forming head and a support pedestal secured to a cassette base. The cassette base is located upon a base which mounts the A forming head to provide for a relatively quick changeover should another double pigtail coil spring need be ...	04/03/2007
6910360	Multiple wire feed for spring coiling machine and method An apparatus for making mattress and upholstery spring coils. The apparatus has a wire feeding device and a wire guide adapted to support first and second wires of different diameters. The wire guide is movable to first and second positions to align the first and se...	06/28/2005
6681809	Device for bending an extremity of a torsional spring A device for bending an extremity of a torsional spring. The device includes a base plate; at least one flange projecting from the base plate; at least one bulge projecting from the at least one flange; a lever arm pivotally mounted onto the at least one ...	01/27/2004
5823233	Apparatus for cutting and crimping coil A cutting and crimping apparatus (14) for automatically cutting and finishing the ends of a spiral coil. The apparatus (14) comprises a jaw set (17) comprising a first fixed plate (20), a second fixed plate (50), a cut plate (70) and a push plate (130), e...	10/20/1998
5713115	Electronically regulated apparatus for coiling springs Described is an electronically regulated coiling apparatus for mattress and upholstery springs comprising essentially a wire draw-in, a wire guidance, a cutting device and a bending device for a wire to be processed, and due to short drive trains equipped...	02/03/1998
5477715	Adaptive spring winding device and method An apparatus includes means for feeding a wire from a fixed outlet against a coiling surface having a variable location in relation to the fixed outlet. The fixed outlet directs the wire in a path and the wire is deflected from the path by the coiling sur...	12/26/1995
5454249	Spring toe forming device and method Apparatus for forming a spring having a spring body and first and second generally axial toes from a wire is disclosed. The apparatus includes mechanisms for feeding the wire from a fixed outlet, wherein the fixed outlet directs the wire in a path; bendin...	10/03/1995
5415208	Auxiliary spring bending machine A spring bending machine includes: a take-up device for taking up a spring made from an automatic spring-making machine, an orienting device for rotating a spring hook end to a vertical position, a vice reciprocatively mounted on a frame having a pair of ...	05/16/1995
5243746	Method for manufacturing coil springs A method of manufacturing coil springs being performed by giving priority to the free length of coil springs with a feature that the length of wire material used for forming initial- and main-coiling sections and an end coiling section of a single coil sp...	09/14/1993
4745951	Coil spring hooking method and apparatus A method and apparatus for forming at least one end of a coil spring blank into a hook, in which the blank is releasably clamped on a carriage at the first of a series of succeeding stations through which the carriage is movable. Where an end loop of the ...	05/24/1988
4726106	Method and apparatus for forming a row of spring coils from a continuous length of wire A single continuous length of wire is formed into a continuous length spiral or helix, which is subsequently placed onto a moving chain conveyor having pins upstanding therefrom. The helix then is folded into a wave configuration for establishing a row of...	02/23/1988
4680950	Method of and an apparatus for forming tension springs with German type hooks A method of and an apparatus for continuously and automatically forming tension springs each provided at the opposite ends with German type hooks. Several forming tools are mounted on rocker arms which swing about respective axes offset from and perpendic...	07/21/1987
4607513	Wire working machine In a wire working machine particularly one for forming torsion springs, an improvement that enhances the flexibility of the machine. The machine includes a wire former operable at the work station in response to the machine cam shaft and operable over a p...	08/26/1986
4586357	Digital control spring forming machine A wire forming apparatus for making springs with coiled body portions and end loops is modified by providing a digital controlled wire feeding accessory. The accessory permits the normal mechanical feeding of the wire and tooling to be interrupted for des...	05/06/1986
4542635	Apparatus for manufacturing solid tension coil springs having attachment loops at both ends thereof Apparatus for manufacturing solid tension coil springs providing loops at both ends with excellent productivity under the condition that shape of loop, facing angle of loops at both ends and number of turns between the loops are respectively set accuratel...	09/24/1985
4501304	Apparatus for looping the outermost convolutions of spiral binders for note books or the like A tool which loops the end portion of the outermost convolution of a spiral wire binder around the neighboring next-to-the-outermost convolution while the convolutions of the binder extend through the perforations of a stack of paper sheets and the binder...	02/26/1985
4485851	Apparatus for raising hooks of semi-finished spring products The present invention relates to an apparatus for raising hooks of semi-finished springs, which includes a rocking arm arranged to be pivotally movable between an upper and a lower positions and having a pair of lateral semi-finished spring holding pieces...	12/04/1984
4476702	Apparatus for measuring and regulating the position of a wire end of a spiral spring in a coiling machine A machine for producing spiral springs whose ends are twisted around the adjacent coils includes inductive proximity switches 18, 19 for sensing the position of the wire end 3a of each spring 3 conveyed from a coil forming station A. The measurement resul...	10/16/1984
4327780	Apparatus for looping the outermost convolutions of spiral binders A tool which loops the end portion of the outermost convolution of a spiral wire binder around the neighboring next-to-the-outermost convolution while the convolutions of the binder extend through the perforations of a stack of paper sheets and the binder...	05/04/1982
4296621	Machines for forming coiled springs A wire coil spring forming machine adapted for use with thick wire prevents breakage of a thin wall in a longitudinal groove in a wire guide member or quill when forming a sharp angle bent between a coil body portion and a leading end loop portion, and pe...	10/27/1981
4289004	Coil spring manufacturing machine A coil spring manufacturing machine which is controlled by a micro-computer is described. Driving source of the coil spring manufacturing machine is a single motor. The power is divided into two independently controllable operation transmitting systems by...	09/15/1981
4236397	Method of and apparatus for producing coil springs with eyelets A method and apparatus for producing coil springs formed of wire and with elets formed at the ends thereof are disclosed. The apparatus includes a machine for winding spring bodies detachably affixed to apparatus for transferring them from the winding mac...	12/02/1980
4147048	Machines for the manufacture of springs fitted with eyelets or hooks The invention relates to machines, for the manufacture of springs, of the type which produce springs with a hook in a plane passing through the axis of said spring at one end, and a hook lying in the extension of the last turn of the spiral at the other e...	04/03/1979
3993106	Wire spring-manufacturing apparatus A wire spring-manufacturing apparatus which comprises a wire feeder; a device for clamping a straight wire of prescribed length delivered from the wire feeder substantially at the center and intermittently rotating said wire about its axis; and a pair of ...	11/23/1976

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Class 140/103 - Coil springs