Gripper rod for shuttleless looms and method for making the grip

Details Gripper rod for shuttleless looms and method for making the grip Gripper rod for shuttleless looms and method for making the grip

1990-04-25

1992-05-19

Epstein, Henry F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428109, 428110, 428112, 428113, 428114, 428182, 428184, 428186, 139444, 139445, 139449, B32B 512

Patent

active

051147750

ABSTRACT:
A gripper rod for shuttleless looms has a toothed rack made of fiber reinforced composite material. The prepregs are stacked in such a way that the fiber orientation in one layer crosses the fiber orientation of at least one neighboring layer. A sufficient number of layers are preferably stacked relative to a central plane of symmetry. The so prepared stack is then placed into a pressing die to form the toothed rack configuration. Due to the pressing, the initial fiber orientation changes so that the fibers after the pressing extend approximately in parallel to the surfaces of the toothed rack, especially at the tooth flank forming surfaces and along the edges, whereby the strength of the toothed rack and the wear and tear resistance, especially of the tooth flanks is improved. The angular orientation of the fiber directions relative to a longitudinal edge of a prepreg may be within the range of about 15.degree. to about 25.degree. prior to the pressing and within a smaller range down to zero after the pressing.

REFERENCES:
patent: 4409274 (1983-10-01), Chaplin
patent: 4622254 (1986-11-01), Nishimura
patent: 4690177 (1987-09-01), Gehring et al.
patent: 4726863 (1988-02-01), Cline
patent: 4783356 (1988-11-01), Kugelmann
patent: 4946721 (1990-08-01), Kindervater

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