Process and apparatus for hooking a band of a flexible material to a fixation piece, and application to the hooking of an envelope, especially a space balloon, to a fixation piece
First Claim
1. A process for hooking a longitudinal extremity of a band of a flexible material onto a fixation piece, comprising:
- longitudinally folding said extremity upon itself at least one time in such a manner as to form at least one first hem (14,
15),transversely gathering in accordian fashion the hem extremity in such a manner as to form a flange having a fan-shaped configuration,providing a fixation piece having a groove having a longitudinal cross-section of a wedge-shaped form conjugate to the form of the flange, said groove having a longitudinal extremity open towards its apex,arranging said flange (12) in said groove in the fixation piece with the band extending out from said groove at the open apex thereof, in such a manner as to generate a selflocking of the flange when the band is placed in tension.
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Accused Products
Abstract
A process and an apparatus for hooking of a band of a flexible material, intended to be subjected to tensile forces, to a fixation piece, for hooking onto the fixation piece of an envelope of which the end portion is divided along a given length, into a plurality of bands of equal width, the process comprising longitudinally folding one extremity of the band upon itself, at least one time, in such a manner as to form at least one hem (14, 15), transversely gathering the hem in accordian fashion in such a manner as to form a flange presenting a fan-shaped configuration, using a fixation piece provided with a groove of a wedge-shape conjugate to the shape of the flange, the groove having a longitudinal extremity opening toward its apex, and arranging the flange within the groove, the band extending through the open extremity of the groove in such a manner as to create a self-locking of the flange when the band is placed in tension.
22 Citations
19 Claims
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1. A process for hooking a longitudinal extremity of a band of a flexible material onto a fixation piece, comprising:
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longitudinally folding said extremity upon itself at least one time in such a manner as to form at least one first hem (14,
15),transversely gathering in accordian fashion the hem extremity in such a manner as to form a flange having a fan-shaped configuration, providing a fixation piece having a groove having a longitudinal cross-section of a wedge-shaped form conjugate to the form of the flange, said groove having a longitudinal extremity open towards its apex, arranging said flange (12) in said groove in the fixation piece with the band extending out from said groove at the open apex thereof, in such a manner as to generate a selflocking of the flange when the band is placed in tension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. An apparatus for hooking an envelope (1) of at least one sheath of a flexible material to a rigid annular fixation piece (2), said apparatus comprising two annular pieces (3, 4) having opposing assembly faces (3a, 4a) adapted to cooperatively form a first annular groove (8) having a wedge-shaped cross section, said fixation piece comprising an external peripheral face (9) provided with a second annular groove extending toward said first annular groove (8), at the top thereof, said first annular groove having a cross section in the form of a circular sector and an axis of symmetry orthogonal to the longitudinal axis of said envelope, said first annular groove being internal of said fixation piece.
Specification