Revolving flat card
AssigneeRieter Machine Works, Ltd.
InventorsPaul Cahannes, Oliver Wuest
Life of this patent
Estimating the term…
Abstract
In some embodiments, the drive belt for receiving the flats in a revolving flat card employs pairs of connecting elements for snap-fitting into an aperture in an end head at one end of a flat. Each connecting element has an inclined surface which extends from the body of the belt to form an acute angle of from 60.degree. to 80.degree.. The end head of each flat has a rectangular opening to receive the pair of connecting elements and has transverse molding each provided with an inclined surface to mate with the inclined surfaces of the connecting elements of the belt. In another embodiment, the drive belt employs pairs of ribs of simple rectangular section to engage within a buckle element of a flat while each rib is able to flex about a root of the rib at the belt body.
Claims43
A drive belt for mounting a plurality of flats in a revolving flat card comprising
- a body;
- a plurality of teeth integral with and disposed on one side of said body;
- and
- a plurality of pairs of connecting elements integral with and disposed on an opposite side of said body from said teeth, each connecting element being of predetermined height relative to said body and having an inclined surface on one side extending from said body and forming a predetermined acute angle with said body, said inclined surfaces of said connecting elements of each pair of connecting elements being directed in opposite directions longitudinally of said body, each said connecting element being spaced from the other connecting element of each pair of connecting elements to permit flexing of said pair of connecting elements towards each other to effect a snap-on connection within an opening of a clamp element of a flat.
A drive belt for mounting a plurality of flats in a revolving flat card comprising
- a body;
- a plurality of teeth integral with and disposed on one side of said body;
- and
- a plurality of pairs of connecting elements integral with and disposed on an opposite side of said body from said teeth, each connecting element being of predetermined height relative to said body and having an inclined surface on one side forming a predetermined acute angle with said body, said inclined surfaces of said connecting elements of each pair of connecting elements being directed in opposite directions longitudinally of said body, each said connecting element being spaced from the other connecting element of each pair of connecting elements to define a slot therebetween extending to said body to permit flexing of said pair of connecting elements towards each other to effect a snap-on connection within an opening of a clamp element of a flat.
In a revolving flat card, the combination of
- at least one drive belt having an endless body and a plurality of pairs of spaced apart connecting members integral with and disposed on one side of said body, each connecting member having an inclined surface on one side extending from said body and forming an acute angle with said body;
- and
- at least one flat removably mounted on said drive belt, said flat having a head at at least one end thereof including an element defining an aperture therein receiving a respective pair of said connecting elements therein in mating relation.
A drive belt for mounting a plurality of flats in a revolving flat card comprising
- an elongated elastically deformable body;
- a plurality of teeth disposed on one side of said body;
- and
- a plurality of pairs of connecting elements disposed on an opposite side of said body from said teeth, each connecting element being of predetermined height relative to said body, each said connecting element being spaced from the other connecting element of each pair of connecting elements to define a slot therebetween extending to said body to permit flexing of said pair of connecting elements towards each other to effect a connection within an opening of a clamp element of a flat and to permit flexing of said pair of connecting elements relative to each other in response to bending of said body within a path of movement of said body in a card without a clamp element of a flat thereon.
In a revolving flat card, the combination of
- at least one drive belt having an endless elastically deformable body and a plurality of pairs of spaced apart connecting members disposed on one side of said body, each connecting member element extending from said body and being spaced from the other of said connecting elements of said pair of connecting elements of said body;
- and
- at least one flat removably mounted on said drive belt, said flat having a head at at least one end thereof including an element defining a buckle aperture therein receiving a respective pair of said connecting elements therein in mating relation.
A drive belt for mounting a plurality of flats in a revolving flat card comprising
- a body;
- a plurality of teeth integral with and extending from one side of said body;
- and
- a plurality of pairs of connecting elements on an opposite side of said body from said teeth;
- each connecting element being of a predetermined height (H) relative to said body and having an inclined surface on one side extending from said body and forming an acute angle with said body in an range of from 60.degree. to 80.degree..
In combination,
- a drive belt having a body, a plurality of teeth integral with and extending from one side of said body and a plurality of pairs of connecting elements on an opposite side of said body from said teeth, each connecting element having an inclined surface on one side extending from said body and each said pair of connecting elements extending over a root length (l) at said body of from 9 to 22 millimeters and having a predetermined span (L) greater than said root length;
- and
- at least one flat removably mounted on said belt, each flat having a buckle element defining an opening receiving a respective pair of said connecting elements of aid belt, said opening of said buckle element having a minimum width (M.sub.N) at a mouth thereof less than said span (L), said buckle element having surfaces mating with and engaging under said inclined surfaces of said pair of connecting elements.
Dependencies are inferred from the claim text.