Abstract A circular knitting machine includes at least one selection station on a fixed part surrounding the machine cylinder, and pivotal jacks associated with the accessories to be controlled, each jack and an associated accessory being disposed in a respective guide groove of the machine cylinder. Each selection station includes magnetic selection means disposed on a cam-box of the machine, a setting cam acting on the tongues of the jacks to pivot the jacks towards the exterior of their guide grooves, a thrust cam for acting on a deformable part of each jack, and a fixed bearing surface for bearing against the jacks which are submitted to the influence of the magnetic means. The bearing surface as well as the thrust cam and polar surfaces of the magnetic means are located at the exterior of the machine cylinder, and the magnetic means are so arranged between the bearing surface and the thrust cam that at the moment of selection portions of each jack are applied against stationary parts of the machine which are independent of the inner surface of the guide grooves of the needle cylinder.
A device for the selection of knitting accessories such as needles of a circular knitting machine including a needle cylinder and at least one selection station on a fixed part of said machine surrounding the needle cylinder and pivotal jacks associated with the accessories to be controlled, each jack and an associated accessory being disposed in a respective guide groove of the needle cylinder, the improvement wherein: each jack comprises an elastically deformable part located facing the interior of its guide groove, and each selection station comprises: magnetic selection means disposed on a cam-box of the machine exterior to said needle cylinder; means for pivoting the pivotal jacks towards the exterior of the guide grooves and submitting them to the influence of said magnetic selection means; a bearing surface disposed on said cam-box exterior to said needle cylinder for bearing against the jacks which are submitted to the influence of said magnetic selection means; a thrust member fixed on said cam-box for acting on said elastically deformable part of each jack and deforming it in a direction towards the interior of its guide groove against the force of attraction of said magnetic selection means; and said magnetic selection means being situated between said bearing surface and said thrust member.
Claim 2
Independent Claim
209 words
A device for the selection of knitting accessories such as needles of a circular knitting machine including a needle cylinder and at least one selection station on a fixed part of said machine surrounding the needle cylinder and pivotal jacks associated with the accessories to be controlled, each jack and an associated accessory being disposed in a respective guide groove of the needle cylinder, the improvement wherein: each jack comprises an elastically deformable part located facing the interior of its guide groove, and each selection station comprises: magnetic selection means disposed on a cam-box of the machine exterior to said needle cylinder; means for pivoting the pivotal jacks towards the exterior of the guide grooves and submitting them to the influence of said magnetic selection means; a bearing surface disposed on said cam-box exterior to said needle cylinder for bearing against the jacks which are submitted to the influence of said magnetic selection means; a thrust member fixed on said cam-box for acting on said elastically deformable part of each jack and deforming it in a direction towards the interior of its guide groove against the force of attraction of said magnetic selection means; and said magnetic selection means being situated between said bearing surface and said thrust member.
Claim 3
Dependent Claim
86 words
A device as claimed in claim 1, wherein said means for pivoting said pivotal jacks towards the exterior of said guide grooves acts on said elastically deformable part of each jack, said means for pivoting being arranged to cause deformation of said deformable parts in the direction towards the exterior of said guide grooves to place said jacks in an operative position in which a non-deformable part of each jack is precisely applied against and is submitted to the magnetic influence of said magnetic selection means.