Global Patent Index - EP 2644714 A1

EP 2644714 A1 20131002 - Controlled blocking apparatus of a spring and method thereof

Title (en)

Controlled blocking apparatus of a spring and method thereof

Title (de)

Kontrolierte Sperrvorrichtung einer Feder und Verfahren zu deren.

Title (fr)

Dispositif et procédé de blocage à hauteur controlée d'un ressort

Publication

EP 2644714 A1 20131002 (FR)

Application

EP 13161444 A 20130327

Priority

FR 1252958 A 20120330

Abstract (en)

The device comprises a first support (11) configured to hold a first end of a spring (2), a second support (12) configured to hold a second end of the spring, and insertable rests inserted between certain turns of the spring during compression of the spring, where the device compresses the spring and controls its shape during compression. The first and second supports move relative to each other. Each insertable rest is a paddle in a form of a truncated ring or a truncated disk (14), where the truncation allows a turn of the spring to pass through the paddle, and the paddle is helical. The device comprises a first support (11) configured to hold a first end of a spring (2), a second support (12) configured to hold a second end of the spring, and insertable rests inserted between certain turns of the spring during compression of the spring, where the device compresses the spring and controls its shape during compression. The first and second supports move relative to each other. Each insertable rest is a paddle in a form of a truncated ring or a truncated disk (14), where the truncation allows a turn of the spring to pass through the paddle, and the paddle is helical. Each insertable rest is in the form of a star having three branches for co-operating with the spring at three points, and possesses a wedge-shaped profile in which a thickness variation is adjusted to impose curvature on an axis of the spring. Each insertable rest is mounted on a carriage configured to enable the insertable rests to follow the movement of the turns of the spring during compression of the spring. Each carriage co-operates with a stop configured to define an initial position for the carriage. The stop is adjustable to adjust the initial position of the carriage. Each carriage co-operates with a return spring configured to return the carriage towards its initial position. The first support is stationary while the second support is movable and is configured to move towards the first support during the compression. The device further comprises a gripper unit (50) configured to take hold of the spring and to convey it, where the gripper unit is a clamp. An independent claim is included for a controlled setting method for setting a coil spring.

Abstract (fr)

Dispositif et procédé de blocage contrôlé d'un ressort à spire, permettant de bloquer de manière contrôlée un ressort à spire avec une longueur de compression choisie, notamment lorsqu'une compression à spires jointives n'est pas favorable. Selon l'invention, ce dispositif comprend un premier support (11) configuré pour maintenir la première extrémité (2e) du ressort (2) et un deuxième support (12) configuré pour maintenir la deuxième extrémité (2e) du ressort (2), les premier et deuxième supports (11, 12) étant configurés pour se déplacer relativement l'un par rapport à l'autre ; ce dispositif comprenant en outre au moins un appui intercalaire (40) configuré pour s'intercaler entre certaines spires (2s) du ressort (2) lors de la compression.

IPC 8 full level

C21D 7/02 (2006.01); F16F 1/13 (2006.01)

CPC (source: EP KR US)

B21F 1/00 (2013.01 - KR); B21F 9/00 (2013.01 - KR); B21F 35/00 (2013.01 - US); B21F 99/00 (2013.01 - KR); C21D 7/02 (2013.01 - EP US); Y10T 29/49609 (2015.01 - EP US); Y10T 29/53622 (2015.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2644714 A1 20131002; EP 2644714 B1 20150218; FR 2988792 A1 20131004; FR 2988792 B1 20150227; JP 2013223883 A 20131031; JP 6196056 B2 20170913; KR 102060201 B1 20191227; KR 20130111460 A 20131010; US 2013255082 A1 20131003; US 9339863 B2 20160517

DOCDB simple family (application)

EP 13161444 A 20130327; FR 1252958 A 20120330; JP 2013071771 A 20130329; KR 20130034699 A 20130329; US 201313853312 A 20130329