US 11,701,844 B2
Pulling device for a pultrusion device
Christoph Eisch, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Filed on Jun. 23, 2017, as Appl. No. 15/631,100.
Application 15/631,100 is a continuation of application No. PCT/EP2015/077587, filed on Nov. 25, 2015.
Claims priority of application No. 10 2015 201 795.8 (DE), filed on Feb. 3, 2015.
Prior Publication US 2017/0282468 A1, Oct. 5, 2017
Int. Cl. B29C 70/00 (2006.01); B29C 70/52 (2006.01); B29C 70/54 (2006.01)
CPC B29C 70/527 (2013.01) [B29C 70/524 (2013.01); B29C 70/541 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A pulling device for a pultrusion device, comprising:
at least one clamping device configured to grip, a pultruded profiled strand of fiber-reinforced plastics-material, and displaceable in a pultrusion direction so as to pull the pultruded profiled strand gripped therein in the pultrusion direction through the pultrusion device, wherein the clamping device comprises:
a collet defining a central axis and having:
at least three clamping jaws, each clamping jaw having a clamping face and being radially displaceable towards the central axis such that each clamping face force-fit contacts a respective radial portion of a cross-sectional surface area of the pultruded profiled strand to thereby provide a gripping force that is normal to and substantially uniform over the entirety of the cross-sectional surface area, and
a collet receptacle configured to circumferentially enclose the clamping jaws such that moving the collet receptacle along the central axis relative to the clamping jaws squeezes the clamping jaws so as to cause the radial displacement of the clamping jaws for force-fitting to and thereby gripping the pultruded profiled strand.