US3301014A

US3301014A - Instrument bed for knitting machines

Info

Publication number: US3301014A
Application number: US414642A
Authority: US
Inventors: Frederick C Wiesinger
Original assignee: Individual
Current assignee: MAYER ROTHKOPF INDUSTRIES Inc A CORP OFDE
Priority date: 1964-11-30
Filing date: 1964-11-30
Publication date: 1967-01-31
Anticipated expiration: 1984-01-31

Description

Jan. 31, 1967 F. c. WIESINGER INSTRUMENT BED FOR KNITTING MACHINES Filed NOV. 30, 1964 INVENTOR FREDERICK C. WIESINGERv QMQ W A T TORNE Y United States Patent 3,301,014 INSTRUMENT BED FUR KNITTING MACHINES Frederick C. Wiesinger, 102 E. Myrtle Ave.,

I Feasterville, Pa. 1%47 Filed Nov. 30, 1964. er. No. 414,642 3 Claims. (Cl. 66-115) This invention pertains to instrument beds for knitting machines and, more particularly, to beds of the so-called built-up type which utilize insert blades to form the channels within which the knitting instrumentalities are supported and guided.

; It is a general object of the invention to provide improved instrument beds for knitting machines of the double cylinder type.

It is a further object to provide an instrument bed which utilizes insertable forecut blades and guiding insert blades or needle guides which eliminate the cutting of needle grooves in the solid wall of the needle bed member itself.

A further object is that of providing forecut blades and cylinder insert blades that can be quickly and easily removed from or replaced in the instrument bed without disturbing or removing associated parts or adjacent guide members forming opposite guide walls thereto.

A still further object is that of providing an instrument bed having a forecut ring fixedly attached to and in contiguous relation with the needle cylinder, thereby providing a substantially continuous surface on which the knitting instrumentalities are caused to travel.

Another object of the invention is to provide an instrument bed having a hardened surface extending the entire length thereof.

Further objects and advantages of the invention will become apparent from the following more detailed disclosure.

Needle cylinders of the type proper for double cylinder knitting machines having slots or needle and jack guides cut directly into the outer wall of said cylinders very often present conditions of an undesirable nature such, for example, as the cylinder becoming out. of round during the required hardening operation. Secondly, the forecut rings utilized with such cylinders, because of their configuration, cannot easily be hardened. The combination of these two problems is an obviously undesirable condition, for the forecut area of the needle bed becomes worn to the extent of required costly repair far sooner than its cooperating needle cylinder.

According to the instant invention, built-up instrument beds can now be provided for double cylinder knitting machines which are of novel construction and have eliminated the undesirable conditions described above that exist with such instrument beds of the prior art.

The built-up instrument beds according to the invention utilize insert blades to form guiding channels on the outer periphery of the cylinders for the knitting instrumentalities. The forecut ring is fixedly attached to the cylinder and is provided with horizontally disposed and radially directed insertable forecut blades in alignment with the blade members forming the channels in said cylinder. The cylinder and forecut ring being fixedly attached one to the other permits these elements to be ground to the desired outside diameter and then plated to form a wear resistant surface and a substantially continuous surface for the knitting instrumentalities to ride on.

That portion of the forecut ring aifixed to the cylinder is provided with a circumferential lip which serves as a novel means of retaining one end of the cylinder insert blades and in combination with the conventional retainment means at the opposite end, the blades are easily removed and replaced.

The invention will hereinafter be described in greater ice detail by reference to the accompanying figures of drawing in which:

FIG. 1 is a sectional view taken through a portion of the lower needle cylinder showing the cylinder insert blades, forecut blades, and forecut ring according to the invention applied thereto;

FIG. 2 is a sectional view on an enlarged scale of the upper portion of the needle cylinder shown in FIG. 1 showing the relationship of a double ended latch needle as assembled therein; and

FIG. 3 is a perspective view and on an enlarged scale of a cylinder insert blade utilized to form the guiding channels for the knitting instrumentalities.

Referring now to the figures of drawing, there is shown in FIG. 1 a portion of a needle cylinder generally indicated by numeral 19 and a cylinder extension or support 11 attached to the lower end thereof.

Although only the lower cylinder is illustrated in the figures of drawing, it should be understood that the invention is applicable to a double cylinder knitting machine of the links-and-links type and that the novel combination of elements shown and described as applied to this cylinder would be substantially the same for the upper cylinder.

A forecut ring generally indicated by numeral 12 is fixedly attached to the upper end of the needle cylinder by any suitable means such as welding as at 13. At the outer and lower portion of the forecut ring a depending circumferential lip 14 is provided which extends about the entire extent of said forecut ring. The outside diameter of this forecut ring 12 is equal to that of the cylinder 10 and the lower portion of the circumferential lip 14 is tapered inwardly and angularly upward to conform to the outer and upper beveled configuration .of the needle cylinder. This circumferential lip 14 is disposed in contiguous relation with the upper beveled portion of the cylinder and overlies the upper ends of equally spaced and longitudinally extending grooves disposed about the entire outer periphery of the cylinder 10. A portion of a single groove is depicted in FIGS. 1 and 2 by numeral 15 and each extend in a radial direction from the outer surface 16 of the cylinder inwardly toward the longitudinal axis of the cylinder to surface 17 (FIGS. 1 and 2) which forms the base of each of said grooves.

Insert blades 18 are assembled in each of the grooves 15 having a portion of each blades width extending outwardly from the cylinder to define guiding channels therebetween in which the knitting instrumentalities are guided to perform their intended function.

The upper end of each insert blade 18 is provided with a generally centrally disposed and downwardly directed V-slot 19 and when in assembled position, provides a slot of mating configuration into which the circumferential lip 14 is receivable. The combination of this V-slot in the insert blades 18 and the circumferential lip 14 provide a means of retaining the upper portion of said blades in operation position, as well as an uncomplicated and quick means of removing and replacing any one or more of these blades.

The lower end portion of the insert blades is reduced in width as at 20 and utilize any of the known forms of retainment at that end such as by peening or rolling the wall over.

The upper end of the forecut ring 12 is provided with equally spaced, horizontally disposed and radially extending grooves 21 the outer end of which are in alignment with the cylinder grooves 15. The top portion of the sidewalls which define these grooves 21 are each adapted to receive a detachable forecut blade 22 (FIGS. 1 and 2). The outer end portion of each forecut blade is in alignment with a cylinder insert blade 18 and as is well known to those conversant with the art serves as a means over which stitches are adapted to be drawn. Additionally, the upper end of each cylinder insert blade is tapered as at 23 and being disposed in spaced relation to its respective forecut blade 22, provides a guide for the needles 24 (one only shown in FIG. 2).

In operation, the novel means of retaining the cylinder insert blades in operation position provides a means whereby they can be quickly and easily assembled or replaced individually on the needle cylinder without disrupting or removing associated components working in conjunction therewith. Additionally, the forecut blades are also easily removed and replaced and the forecut ring being disposed in close proximity with the needle cylinder provides a substantially continuous surface on which the knitting instrumentalities are caused to ride.

The forecut ring, being fixedly attached to the needle cylinder, eliminates the conventional hardening operation that was required with needle cylinders of the prior art, and permits these elements when assembled together to be finished as a unit. A desired feature of this form of cylinder and forecut unit is that being able to maintain uniform dimensional standards by means of grinding. This manner of assembly and finishing lends itself to electro-plating of these elements, thereby providing a hard and wear resistant surface on which the needles and cooperating jacks are adapted to function.

While one embodiment of the invention has been disclosed, it is to be understood that the inventive concept may be carried out in a number of ways. This invention is, therefore, not to be limited to the precise details described, but is intended to embrace all variations and modifications thereof falling within the spirit of the invention and the scope of the claims.

I claim:

1. An instrument bed for knitting machines having in combination knitting instrumentalities, a needle cylinder, longitudinally extending and equally spaced grooves formed about the entire periphery of said cylinder, a forecut ring fixedly attached to one end of said needle cylinder, said forecut ring including an edge in contiguous relation with the grooves of said cylinder defining a circumferential lip extending about the entire extent of the cylinder, horizontally disposed forecut blades removably attached to that end of said forecut ring most remote from said cylinder, said forecut blades being in alignment with and equal in number to the grooves in said cylinder, insert blades adapted to be received by each of the grooves in said cylinder and having an end configuration cooperating with and adapted to be retained by said circumferential lip, said insert blades forming channels within which said instrumentalities are caused to reciprocate vertically, the outer diameter of said forecut ring being equal to the outer diameter of said cylinder, the combination of which provides a substantially continuous surface across which said instrumentalities are caused to move.

2. The mechanism according to claim 1 wherein said forecut ring includes on that end most remote from said cylinder horizontally disposed and radially extending slots the outer ends of which are in alignment with and equal in number to the grooves in said cylinder.

3. The mechanism according to claim 2 wherein said forecut blades are clampingly attached to each of the side walls defining the slots in said forecut ring with the outer ends thereof being individual to and disposed in vertical alignment with each of said insert blades.

References Cited by the Examiner UNITED STATES PATENTS 561,038 5/1896 Williams 661 15 1,089,021 3/1914 Swinglehurst 66-l 15 1,869,416 8/1932 Green 66-l 15 1,899,278 2/1933 Lawson et al. 66-ll5 2,416,938 3/1947 Morgenstern 66ll5 2,508,834 3/1950 Miller 66l 15 MERVIN STEIN, Primary Examiner.

R. FELDBAUM, Assistant Examiner.

Claims

1. AN INSTRUMENT BED FOR KNITTING MACHINES HAVING IN COMBINATION KNITTING INSTRUMENTALITIES, A NEEDLE CYLINDER, LONGITUDINALLY EXTENDING AND EQUALLY SPACED GROOVES FORMED ABOUT THE ENTIRE PERIPHERY OF SAID CYLINDER, A FORECUT RING FIXEDLY ATTAWCHED TO ONE END OF SAID NEEDLE CYLINDER, SAID FORECUT RING INCLUDING AN EDGE IN CONTIGUOUS RELATION WITH THE GROOVES OF SAID CYLINDER DEFINING A CIRCUMFERENTIAL LIP EXTENDING ABOUT THE ENTIRE EXTENT OF THE CYLINDER, HORIZONTALLY DISPOSED FORECUT BLADES REMOVABLY ATTACHED TO THAT END OF SAID FORECUT RING MOST REMOTE FROM SAID CYLINDER, SAID FORECUT BLADES BEING IN ALIGNMENT WITH AND EQUAL IN NUMBER TO THE GROOVES IN SAID CYLINDER, INSERT BLADES ADAPTED TO BE RECEIVED BY EACH OF THE GROOVES IN SAID CYLINDER AND HAVING AN END CONFIGURATION COOPERATING WITH AND ADAPTED TO BE RETAINED BY SAID CIRCUMFERENTIAL LIP, SAID INSERT BLADES FORMING CHANNELS WITHIN WHICH SAID INSTRUMENTALITIES ARE CAUSED TO RECIPROCATE VERTICALLY, THE OUTER DIAMETER OF SAID CYLINDER, THE COMBINATION OF WHICH OUTER DIAMETER OF SAID CYLINDER, THE COMBINATION OF WHICH PROVIDES A SUBSTANTIALLY CONTINUOUS SURFACE ACROSS WHICH SAID INSTRUMENTALITIES ARE CAUSED TO MOVE.