EP 0289640 B1 19911002 - SEAMING MACHINES, ESPECIALLY FOR SEAMING DEWATERING AND DRY SCREENS, FELTS AND THE LIKE
Title (en)
SEAMING MACHINES, ESPECIALLY FOR SEAMING DEWATERING AND DRY SCREENS, FELTS AND THE LIKE
Publication
Application
Priority
EP 87106666 A 19870507
Abstract (en)
[origin: EP0289640A1] 2.1 The object of the invention consists in optimising the functional reliability of the thread separator by so constructing the gripper needles that the frontmost thread of a warp thread concatenation of a fabric is reliably seized in isolation on each occasion and that any risk of piercing and gripping the successive thread is avoided. 2.2 It is proposed to design the gripper needles (4) so that they are constructed as sectioned needles which are provided with special hooks (6) (7) of which at least two are arranged to oppose each other in the same or parallel plane with respect to the upper and lower sides of the strip of fabric associated with the line of thread, the points (10) (11) of the gripper needles being directed towards the respectively opposite thread surface (12) and the concave recesses (14) (15) of the gripper needles shaped to conform to the diameter of the thread to be picked up on separation in such a way that piercing by the needle points of the thread to be separated and gripping of the successive thread are avoidable. <IMAGE>
IPC 1-7
IPC 8 full level
D21F 1/00 (2006.01)
CPC (source: EP)
D21F 1/0054 (2013.01)
Citation (examination)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0289640 A1 19881109; EP 0289640 B1 19911002; AT E68024 T1 19911015; DE 3773487 D1 19911107; ES 2025577 T3 19920401
DOCDB simple family (application)
EP 87106666 A 19870507; AT 87106666 T 19870507; DE 3773487 T 19870507; ES 87106666 T 19870507