Gage for measuring length of flexible extrusions

G - Physics – 01 – B

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G01B 5/02 (2006.01) B29C 47/92 (2006.01)

Patent

CA 2218311

A roller measurement fixture is comprised of a series of small in-line rollers (20) mounted in one or more rows, forming a receiving cradle device (25). An extruded part to be measured is cradled in a semi-circular arrangement of the rollers and straightens as it settles under its own weight. The cradle device will accommodate many different cross-sections of extruded seal. The rollers are free to rotate as the part is placed into the fixture and properly located. Friction from these rollers is negligible, therefore the part remains in, or attains, its free state, without internal stresses, throughout the loading and measurement process. Thus, the extruded part is limp within the cradle, being loaded so as to contact a head or alignment stop at one end of the cradle. A floating stop (35) riding on the rollers engages the other end of the part and cooperates with a scale (30) on the cradle as a means of acquiring the measurements.

Dispositif de mesurage à galets comportant une série de petits galets (20) alignés sur une ou sur plusieurs rangées, et formant un guide-berceau (25). Un profilé obtenu par extrusion est déposé dans le guide-berceau aux fins de mesurage par les galets formant demi-cercle où, sous son propre poids, le profilé se redresse. Le guide-berceau peut recevoir des profilés d'étanchéité obtenus par extrusion et de sections transversales différentes. Les galets tournent librement durant la mise en place du profilé. Les galets n'offrant qu'un frottement négligeable, le profilé demeure ou atteint l'état de repos, et reste libre de contraintes internes durant tout le processus de chargement et de mesurage. Le profil extrudé repose donc mollement sur le guide-berceau, et vient en contact avec une butée d'alignement placée à une des extrémités du berceau. Une butée volante (35) pouvant être déplacée le long des galets vient en contact avec l'autre extrémité du profilé, en coopération avec une échelle (30) servant à l'acquisition des mesures.

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