Fixing staple for delicate material
AssigneeSociete de Prospection et D Inventions Techniques Spit
InventorsRoland Almeras, Patrick Herelier
Life of this patent
Estimating the term…
Abstract
A staple (4) for a delicate material (22) comprises two flexible legs (46, 47) between a head portion (56) connecting the legs and an introduction end portion (57). Between the head and end portions is located a discontinuity portion (58) so that when the staple is pushed into the material (22), at least one of the legs (46, 47) inclines with respect to the head portion (45) and thus ensures good resistance to extraction. The two legs (46, 47) are bent (76, 77) inwardly in the discontinuity portion (58) of the whole assembly to diverge from one another upon fixing the staple to the delicate material.
Claims20
A fixing member, comprising two legs and a head portion connecting said legs;
- each of said legs comprising first and second portions, said first portion being connected to said head portion via an acute bend portion and extending inwardly of said fixing member toward the other leg, and said second portion being connected to said first portion via an obtuse bend portion and extending outwardly of said fixing member away from the other leg;
- wherein said second portion has a length at least twice as long as that of said first portion.
A fixing member, comprising two legs and a head portion connecting said legs;
- each of said legs comprising first and second portions, said first portion being connected to said head portion via an acute bend portion and extending inwardly of said fixing member toward the other leg, and said second portion being connected to said first portion via an obtuse bend portion and extending outwardly of said fixing member away from the other leg;
- wherein said head portion comprises a weakened zone having a cross-sectional area increasing from a central region of said head portion toward said acute bend portions.
A connection, comprising an item to be fixed, a support material and a staple fastening said item to said support material;
- said staple comprising two legs and a head portion connecting said legs, each of said legs comprising first and second portions, said first portion being connected to said head portion via a first bend portion, and said second portion being connected to said first portion via an obtuse bend portion and extending outwardly of said staple away from the other leg;
- wherein, in a state prior to fastening said item to said support material, said first bend portion is an acute bend so that said first portion extends inwardly of said staple toward the other leg;
- and
- wherein a length of said first portion is not greater than a sum of thicknesses of said item and said support material, and is greater than half the sum.
Dependencies are inferred from the claim text.