Mechanical lock for clamps
OwnerHans Oetikerinventor
Life of this patent
Estimating the term…
Abstract
A clamp structure with a clamping band and with at least one plastically deformable so-called "Oetiker" ear to be contracted to tighten the clamp structure about the object to be fastened; to assure a substantially smooth, gap-free transition in the circumferential direction within the area of overlap, for example, of an inner and outer band portion in the area of mechanical interlock or of an insert member and corresponding parts of the clamping band, a tongue portion is provided at each free end of the inner part which is adapted to engage in a corresponding aperture in the respective outer part when the ear is contracted.
Claims35
A clamp structure which comprises band means and at least one means for tightening the clamp structure about an object to be fastened, and in which at least one overlap exists between an outer band portion and the free end of an inner band material which may cause a discontinuity in the smooth, ring-like internal configuration of the clamp structure, characterized by further means including a tongue-like means at the free end of the inner band material and an outwardly directed step in the corresponding overlapping area of the outer band portion provided with means for receiving the tongue-like means to thereby assure a substantially smooth, gap-free transition devoid of any step in the circumferential direction from each free end of the inner band materials to the ring-like configuration formed by the adjoining band portion of the band means when the clamp structure is tightened about said object by the use of said tightening means.
A clamp structure which comprises a ring-like band means made from band material whose overlapping free ends are connected together and which includes in its circumference at least one plastically deformable ear means adapted to be contracted to tighten the clamp structure about an object to be fastened, characterized in that further means are provided near the overlapping end portions of the band means to assure a substantially gap-free transition in the circumferential direction from the free end of the inner band portion to the ring-like configuration of the adjoining outer band portion when the clamp structure is tightened by deformation of the ear means, said further means including a tongue-like portion at the free end of the inner band portion and an outwardly directed step-like portion provided with means for receiving the tongue-like portion within the area of overlap.
A clamp structure which comprises a band means, at least one means for tightening the clamp structure about the object to be fastened, and an insert means in said clamp structure at least within the area of an opening underneath the tightening means of the adjoining band portions of the band means, characterized by further means at the free ends of the insert means and in the corresponding areas of the band portions to assure a substantially gap-free, stepless transition in the circumferential direction from the free ends of said insert means to the ring-like configuration formed by the adjoining band portions of the band means, said further means including tongue-like means at each free end of the insert means and tongue-receiving means within outwardly step-like portions in said adjoining band portions.
Dependencies are inferred from the claim text.