| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Device for bending an extremity of a torsional spring | US10153002 | 2002-05-22 | US20030115928A1 | 2003-06-26 | Normand Savard; Guillaume Allen; Philippe Larochelle |
| 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 flange about a first pivot axis; and at least one cam pivotally mounted onto the lever arm about a second pivot axis. The lever arm is operable between first and second positions and each cam has a contact surface being positioned for operatively cooperating with a corresponding bulge. Prior to the bending operation, the extremity of the torsional spring is inserted between a given bulge and the contact surface of a corresponding cam when the lever arm is in the first position. In operation, the extremity of the spring is bent about the given bulge by the contact surface of the corresponding cam when the contact surface is urged towards the bulge and forced about the same over the extremity of the spring as the lever arm is operated into the second position. The device enables an easier, simpler and more cost effective way of bending an extremity of a torsional spring, without the use of heat for bending the spring tail, and may be easily transportable from one site to another. Moreover, the device can be used for bending the extremities of torsional springs having different wire sizes. | ||||||
| 182 | Spring manufacturing apparatus | US372910 | 1999-08-12 | US6151942A | 2000-11-28 | Ichiro Itaya |
| Feed roller axis 424 is rotated by driving gear 429 axially fixed to the bevel gear axis 428 which meshes with bevel gear 423a and changes the rotation direction of the bevel gear axis 423 by 90.degree.. | ||||||
| 183 | Apparatus for cutting and crimping coil | US889407 | 1997-07-08 | US5823233A | 1998-10-20 | David C. McHenry, Jr. |
| 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), each plate having a tooth extending therefrom capable of engaging the coil. The plates are substantially flat and disposed in sliding contact with each other. The cut plate (70) of the apparatus (14) is driven in a reciprocating, substantially linear motion by a linkage (100) mechanically coupled to a motor (18). | ||||||
| 184 | Auxiliary spring bending machine | US164434 | 1993-12-09 | US5415208A | 1995-05-16 | Chin-Tu Wu |
| 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 jaws for clamping the spring to be bent to project the spring hook end outwardly from the two jaws, and a bending tool reciprocatively mounted on the frame for bending the vertically-oriented spring hook end to be horizontaly oriented, and a driving device for driving the vice and the bending tool for their respective clamping and bending operation. | ||||||
| 185 | Apparatus for forming wire | US503906 | 1990-04-04 | US5105641A | 1992-04-21 | Gustav Veit |
| This invention relates to an apparatus for the forming of wire, namely a leg or spiral spring winding and bending machine.It is an object of the present invention to reduce the expenditure for the production of the apparatus and to universalize the forming operations which can be carried out with each tool.The apparatus including a plurality of tools (86, 88, 90, 92 or 142; 162, 190, 192) on a tool holder (74; 160) which is fixed at the free end of a longitudinally displaceable shaft (12) resembling the known winding spindle and is replaceable. Every existing tool can be brought into the pathway of the wire and hence into operation by positioning the shaft by rotation and longitudinal displacement by means of a drive which is known from the conventional winding spindle but differently controlled.The advantage of this apparatus is that it is of simplified construction and enables the same tools to be used for producing different forms of springs. | ||||||
| 186 | Coil spring hooking method and apparatus | US399840 | 1982-07-19 | US4745951A | 1988-05-24 | Arthur W. E. Guenther |
| 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 coil is to be formed into a hook that loop is bent into a position transverse to the axis of the coil of the blank at a second station and at a further succeeding station the free end of the loop is severed to a predetermined length. Where a laterally extending leg of the blank is to be formed into a hook the leg is bent into a position transverse to the axis of the coil of the blank at a second station, the leg is bent at a third station to form a hook, and at a fourth station the free end of the leg is severed to a predetermined length. | ||||||
| 187 | Method of welding a spiral spring to produce a toroidal ring | US734274 | 1976-10-20 | US4122326A | 1978-10-24 | Bernard Mercier |
| A toroidal ring made from a spiral spring with contiguous turns, such as those used for constituting the inner core of a metal sealing ring. The ring has a weld without filling metal connecting together the two end turns of the spring, this weld being such that continuity of the wire of the spring is provided without altering the contiguous configuration of the turns and the mechanical, physical and chemical properties of the spring are substantially unchanged at this weld. The weld can advantageously be effected by a resistance weld performed with a pulse of electric current. | ||||||
| 188 | Cutting fixture for spiral binders and method of manufacture | US603000 | 1975-08-08 | US3972109A | 1976-08-03 | Albert E. Sickinger |
| A fixture for cutting and inwardly bending the ends of spiral binders. The fixture comprises a body having parallel sides formed by a milled slot, the lower end of one side having an arcuate inward extension. A cutter pivotally mounted between the body sides has a complementary portion adjacent the curved extension and another portion spaced from the other side. The construction enables the end of a small diameter spiral having a large pitch to be trimmed in a manner which bends the end of the spiral inwardly a sufficient distance to bridge the gap to the next turn, thus preventing snags when books are stacked. | ||||||
| 189 | Method for forming loops from springs | US47592274 | 1974-06-03 | US3879829A | 1975-04-29 | GELARDI JOSEPH T |
| First and second hook portions at opposite ends of a spring, such as a helical spring, are joined together to form a loop by first inserting a pin into the first hook portion to force it open. Then, a spring bending member moves toward the pin so that the second hook portion of the spring is received in a cavity having curved sidewalls, causing the spring to bend as desired. In this manner, the second hook portion is brought into engagement with the first hook portion, and the pin is then withdrawn to allow the first hook portion to close.
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| 190 | Manufacture of springs | US32389173 | 1973-01-15 | US3827464A | 1974-08-06 | CLARKE T; QUARMBY R; MATTS G |
| The invention relates to machines for use in forming attaching loops in generally longitudinal orientation at or from end portions of coil springs. An end portion of a spring is located axially of a machine axis and transversely of a machine axis by locating means of the machine. The machine also comprises orientating means for facilitating orientation of the spring about the machine axis so that the end of the wire of which the spring is formed is correctly positioned. The machine further comprises looping means for operating on the located and orientated end portion of the spring to form a loop of a desired configuration and orientation.
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| 191 | Manufacture of springs | US3782425D | 1972-02-28 | US3782425A | 1974-01-01 | LETT P; CLARKE T; QUARMY R |
| The invention relates to machines and methods for use in forming loops at end portions of coil springs of the type disclosed in U.S. Pat. No. 3,662,788 (U.S. Pat. application No. 33,271) but differing in that tools are provided whereby ''''German'''' type loops may be formed. A spring is supported by support means and operated on by three tools which bend a coil of the spring away from the remainder of the spring and permanently set it to form a loop.
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| 192 | Eyelet making device for springs,to be coupled to winding machines and operating at the same output speed of the latter | US3721276D | 1970-06-26 | US3721276A | 1973-03-20 | LAMPERTI E |
| The device is for forming an anchoring ring on one or both of the ends of a helical spring. It comprises: guide means for the spring, spring gripping means in the form of jaws, at least one of which is movable, means on the sides of the jaw for eyelet bending at least one end of the spring and means for shearing the surplus wire, conveyor means are provided in the form of a cradle for receiving the spring and carrying it to the deformation zone. The device is mounted at the discharge of a helical spring forming machine to finish springs with the end eyelets.
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| 193 | Apparatus for forming retaining members | US3672410D | 1970-07-22 | US3672410A | 1972-06-27 | SCHECKEL KONRAD |
| Apparatus for forming retaining members on a helical spring having a helical coil section and two tangentially extending ends has a pair of motor-driven bending assemblies arranged facing each other. Each assembly has a pair of fluid motors, one of which bends one of the tangentially extending ends of the spring into a direction which is parallel to the axis of the coil section and the other of which forms the retaining member on the bent spring end. Mounting means is arranged adjacent to and between the two bending assemblies and is arranged to releasably hold at least a portion of the helical coil section of the spring and is positioned to permit the spring ends to be bent and formed by the respective bending assemblies. The fluid motors, which may be either hydraulic or pneumatic, are adjustably mounted in respective clamping stands, and may be locked in a desired position.
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| 194 | Method of manufacturing extension springs | US3570291D | 1968-10-07 | US3570291A | 1971-03-16 | SHIGUMA HEIJIRO |
| A CIRCULAR SECTION SPRING STEEL WIRE IS WOUND AROUND A MANDREL IN SUCH A WAY THAT ADJACENT TURNS OF THE SPRING STEEL WIRE ON THE PERIPHERY OF THE MANDREL ARE IN CLOSE CONTACT WITH EACH OTHER AND ARE SIMULTANEOUSLY TWISTED IN SUCH A DIRECTION OF ROTATION THAT THE SPRING STEEL WIRE TURNS ON THE MANDREL WHEN IT IS WOUND ON THE MANDREL, THE RESULT OF A GREAT AMOUNT OF INITIAL TENSION BEING IMPARTED TO THE EXTENSION SPRING.
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| 195 | Wire forming machine | US41566164 | 1964-12-03 | US3351101A | 1967-11-07 | HALVORSEN ELMER W; RUSSELL FRANK S |
| 196 | Wire coiling machine | US37793764 | 1964-06-25 | US3313325A | 1967-04-11 | CHARLES WELLS ALFRED |
| 197 | Looping apparatus for forming loops on coil springs | US6780260 | 1960-11-07 | US3167099A | 1965-01-26 | BACKMAN JOHN A |
| 198 | Automatic spring-looping machine | US2115960 | 1960-04-11 | US3156269A | 1964-11-10 | LEHTONEN EDWIN W |
| 199 | Positioning device for end loop forming means for spring coiling machine | US14912461 | 1961-10-31 | US3150695A | 1964-09-29 | GATTI ROBERT L |
| 200 | Cutting and bending dies for spring strip | US72230758 | 1958-03-18 | US3071168A | 1963-01-01 | SURLETTA ZYGMUNT M |
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