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US 5,829,372 AGranted
Mechanical tufting head
AssigneeWilcom Tufting Pty. Ltd.
InventorsPeter Leonard Aubourg, Robert Gabor Pongrass, William Brian Wilson
Life of this patent
Estimating the term…
Abstract
This invention concerns a mechanical tufting head. In particular it concerns a tufting head suitable for use in a hand-held tufting gun, or for automated use in the production of individualized rugs or carpets.
Claims13
A mechanical tufting head, comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- a stationary yarn tube extending through the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft.
2 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- a needle drive collar rotatably connected to the upper end of the hollow shaft;
- and
- a blade slide rotatably connected to the blade carriage, wherein the blade slide and the needle drive collar are both keyed into a track which allows them to reciprocate but prevents them from rotating.
4 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- and
- a cut pile-yarn brake incorporated into the blade carriage, comprising an adjustable camming surface which rises and falls in synchronism with the blade carriage in order to drive brake members into engagement with the yarn at a predetermined point in each cycle.
3 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- and
- a selective yarn brake comprising a yarn brake member, a piston and a pin, the pin being selectively driven down by the piston to actuate the yarn brake member.
3 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- wherein the blade carriage comprises a blade mounted thereto;
- and
- means for adjustably and pivotally mounting the blade carriage relative to the hollow shaft to control the angle of the blade and thereby a side load on the yarn.
4 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- a needle mounted in the needle mount and a blade mounted to the blade carriage to engage yarn extending along the yarn path, wherein a trench is formed at the lower end of the needle, and further comprising means for loading the blade to engage the yarn against the side of the needle, so that the blade will, as it travels down, enter the trench to release a load.
2 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- a needle mounted in the needle mount and a blade mounted in the blade carriage, wherein a groove is formed along the needle, and further comprising means for loading the blade to engage yarn against a side of the needle and capture the yarn in the groove.
2 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- a forked blade connected to said blade carriage, wherein said forked blade has a root, and an insert of hard material positioned in the root of the fork in the blade.
2 more elements
A mechanical tufting head comprising:
- a first reciprocating system comprising a hollow shaft having lower and upper ends and a tufting needle mount connected to the lower end of the hollow shaft;
- a stationary yarn tube extending through the hollow shaft;
- means for mounting the first reciprocating system for rotation about and reciprocation along a yarn path axis;
- and
- a blade carriage mounted about the hollow shaft, such that the blade carriage is able to rotate with respect to the axis of the yarn path and reciprocate along the hollow shaft;
- a needle mounted in the needle mount;
- a blade mounted in the blade carriage;
- and
- means for loading the blade to engage yarn against a side of the needle.
6 more elements
Dependencies are inferred from the claim text.