EP0210790A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Knitting needle driving mechanism of knitting machine
Assignee: WATANABE KUTSUSHITA KOGYO CO Ltd
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Filing: 1986-07-16
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Granted: —
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Expires: 2006-07-16
Abstract
Abstract A knitting needle driving mechanism (11) of a jacquard knitting machine in which a movement of fingers (10) defining a sliding motion of each knitting needle is applied by a bending movement of the finger activated by inputting a pulse emitted from a memory to a piezo-electric member (15) attached to one face or to both faces of the finger.
Inventors
- 👤 Yoshinori Watanabe
- 👤 Yuji Watanabe
- 👤 Fumio Watanabe
- 👤 Toshio Watanabe
- 👤 Chiharu Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:44
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/94; D04B15/99; D04B15/66; D04B15/68; D04B15/78
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
351 words
A knitting needle driving mechanism of a knitting machine capable of knitting a predetermined pattern by causing or removing engagement between rising cams for applying a sliding movement to a plurality of knitting needles arranged on a needle bed of the knitting machine and rising cam butts of the knitting needles or rising cam butts of jacks engaging with lower ends of the knitting needles on the basis of signals for a predetermined knitting plan emitted from a controller of a knitting machine main body: characterized in that said knitting needle driving mechanism is comprised of a housing, and a plurality of fingers supported in the housing by rear ends thereof and arranged substantially superimposed at intervals along a sliding direction of the knitting needles; each of said plurality of fingers is comprised of a plate having one end provided with an attaching portion to be attached to the housing and another end provided with a guiding portion for guiding a finger butt of the knitting needle or a finger butt of the jack, and piezo-electric element(s) attached to a face or both faces of the plate and connected to the controller by means of lead wires; said fingers being bent in an upward direction and a downward direction or in both directions, about a fulcrum which is formed by the attaching portion of the finger to cause or remove engagement between the guiding portion of a front end of the finger and the finger butt of the knitting needle or the finger butt of the jack, when a pulse is input from the controller to the piezo-electric element in accordance with the procedure corresponding to the predetermined pattern, thereby the formation or the release of engagement between the rising cam and the rising cam butt of the knitting needle or the rising cam butt of the jack is caused by the formation or the release of engagement between the guiding portion of the finger and the finger butt of the knitting needle or the finger butt of the jack, and the sliding movement of the knitting needle is thus defined.
Claim 2
Dependent Claim
351 words
A knitting needle driving mechanism of a knitting machine capable of knitting a predetermined pattern by causing or removing engagement between rising cams for applying a sliding movement to a plurality of knitting needles arranged on a needle bed of the knitting machine and rising cam butts of the knitting needles or rising cam butts of jacks engaging with lower ends of the knitting needles on the basis of signals for a predetermined knitting plan emitted from a controller of a knitting machine main body: characterized in that said knitting needle driving mechanism is comprised of a housing, and a plurality of fingers supported in the housing by rear ends thereof and arranged substantially superimposed at intervals along a sliding direction of the knitting needles; each of said plurality of fingers is comprised of a plate having one end provided with an attaching portion to be attached to the housing and another end provided with a guiding portion for guiding a finger butt of the knitting needle or a finger butt of the jack, and piezo-electric element(s) attached to a face or both faces of the plate and connected to the controller by means of lead wires; said fingers being bent in an upward direction and a downward direction or in both directions, about a fulcrum which is formed by the attaching portion of the finger to cause or remove engagement between the guiding portion of a front end of the finger and the finger butt of the knitting needle or the finger butt of the jack, when a pulse is input from the controller to the piezo-electric element in accordance with the procedure corresponding to the predetermined pattern, thereby the formation or the release of engagement between the rising cam and the rising cam butt of the knitting needle or the rising cam butt of the jack is caused by the formation or the release of engagement between the guiding portion of the finger and the finger butt of the knitting needle or the finger butt of the jack, and the sliding movement of the knitting needle is thus defined.
Claim 3
Dependent Claim
113 words
A knitting needle driving mechanism according to claim 1, characterized in that said knitting machine is a circular knitting machine having a needle cylinder rotating against a frame of the knitting machine and at least one knitting needle driving mechanism arranged on the frame, and the knitting needle driving mechanism being constituted such that the guiding portion of the finger advanced into or removes from a moving locus of the finger butt of the knitting needle or the finger butt of the jack engaging with a lower end of the knitting needle by the swing motion of the finger before the corresponding knitting needle moves in front of the knitting needle driving mechanism.
Claim 4
Dependent Claim
124 words
A knitting needle driving mechanism according to claim 1, characterized in that said knitting machine is a flat knitting machine having a needle bed fixed to a frame of the knitting machine and at least one knitting needle driving mechanism capable of sliding along the needle bed, and the knitting needle driving mechanism being constituted such that the guiding portion of the finger previously advances toward or retreats from a position where the guiding portion of the finger engages with the finger butt of the knitting needle or the finger butt of the jack engaging with a lower end of the knitting needle by the swinging motion of the finger before the knitting needle driving mechanism slides in front of the corresponding knitting needle.
Claim 5
Dependent Claim
121 words
A knitting needle driving mechanism according to any one of claims 1 to 3, characterized in that said housing includes a needle bed opposing member extending at a place adjacent to the guiding portions of the fingers in the direction parallel to the sliding direction of the knitting needle, and said needle bed opposing member is provided with a pair of finger guiding faces for slidably supporting both side faces of the guiding portion of the finger in the swinging direction of the finger and at least one finger butt guiding face extending from the finger guiding face in the direction parallel to the swinging direction of the finger and in the direction away from the guiding portion of the finger.
Claim 6
Dependent Claim
39 words
A knitting needle driving mechanism according to any one of claims 1 to 3, characterized in that at least one opening is arranged on a portion of the plate of the finger which is provided with the piezo-electric element.
Claim 7
Dependent Claim
64 words
A knitting needle driving mechanism according to any one of claims 1 to 3, or claim 5, characterized in that the plate of the finger is made of a stainless steel and the guiding portion is formed as a different member made of a hardened steel having a thicker thickness than that of the plate and attached to the front end of the plate.
References Cited (Backward Citations)
No citation records indexed.
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