Tufting needle bar and needle bar assembly
First Claim
1. Tufting apparatus or the like having tufting stations including tufting needles for applying tufts to a backing layer, wherein the improvement includes a needle bar comprising:
- a member for carrying said tufting needles;
means for positioning said tufting needles on said member; and
,unitary means for simultaneously rotationally and axially aligning said tufting needles, including adjacent structure on said tufting needles and said member, and insertable means for engaging said adjacent structure and said positioning means, thereby aligning and securing said tufting needles.
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Accused Products
Abstract
A substantially lightweight tufting needle bar and needle bar assembly of improved construction comprising preferably a hollow needle bar including a needle bar insert pin plate or base type portion having vertical bores for receiving needles. Horizontal bores intersect with the vertical bores to permit the insertion of roll pins which secure and lock the needles in place. The needles are horizontally grooved to enable precise securement by the roll pins. In the hollow needle bar embodiment, the outer channel of the needle bar is kept thin to provide an extremely light weight construction.
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Citations
19 Claims
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1. Tufting apparatus or the like having tufting stations including tufting needles for applying tufts to a backing layer, wherein the improvement includes a needle bar comprising:
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a member for carrying said tufting needles; means for positioning said tufting needles on said member; and
,unitary means for simultaneously rotationally and axially aligning said tufting needles, including adjacent structure on said tufting needles and said member, and insertable means for engaging said adjacent structure and said positioning means, thereby aligning and securing said tufting needles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18)
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12. Tufting apparatus or the like including tufting needles for applying tufts to a backing layer wherein the improvement includes a needle bar comprising:
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a first member having means to guide needles; a second member having locking and aligning means for securing needles thereto in precise axial and rotational alignment; and
,a third member which has mounting means for securing needle driving means thereto, each of said three members being secured to one another by joining structure. - View Dependent Claims (13, 14, 15, 16, 17)
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19. Tufting apparatus or the like having tufting stations including tufting needles for applying tufts to a backing layer and a needle bar for carrying said tufting needles comprising:
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first bore means in said needle bar into which said tufting needles can be inserted; second bore means in said needle bar which intersects said first bore means; said tufting needle, including receiving portions alignable with said second bore means in said needle bar; and insertable pin means which unitarily will rotationally and axially align and secure said tufting needles upon insertion of said pin means in said second bore means when said receiving portions of said tufting needles are aligned with said second bore means.
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Specification