Guiding device for picked weft threads

Claim 2

Guiding device fOr picked weft threads comprising, in combination, a row of first guide members, and a row of second guide members alternately arranged relative to said first guide members, each said guide member being formed with a guide opening and with an outlet gap communicating with said guide opening, said first and second guide members having a picking position in which said guide openings are aligned to form a passage for a picked weft while the outlet gap of each guide member is crossed by portions of the respective adjacent guide members so that said passage is substantially closed along said periphery thereof.

Claim 3

Guiding device as claimed in claim 1 comprising a pneumatic nozzle aligned with said guide openings and for blowing a weft thread through said guide passage while said first and second guide members are in said picking position.

Claim 4

Guiding device as claimed in claim 1 wherein said passage of aligned guide openings is located in a warp shed; with said guide members alternately passing between adjacent warp threads when said picked weft thread is received therethrough; and comprising means for moving said rows of first and second guide members successively out of said warp shed so that said first and second guide members release the picked weft thread through said outlet gaps into the warp shed.

Claim 5

Guiding device as claimed in claim 3 wherein said outlet gaps of said first guide members trail said guide openings in the direction of movement of said first guide members out of said warp shed so that the picked weft thread retained by said second guide members passes through said outlet gaps of said first guide members.

Claim 6

Guiding device as claimed in claim 1 wherein all said guide openings are in said picking position aligned along an axis; and wherein in said picking position said outlet gaps of adjacent guide members are angularly staggered about said axis.

Claim 7

Guiding device as claimed in claim 1 wherein said first and second guide members have wedge-shaped cross sections disposed in opposite directions.

Claim 8

Guiding device as claimed in claim 1 wherein said guide openings are in said picking position located in a warp shed; wherein said first and second guide members alternately pass between warp threads; and wherein said first and second guide members have recesses for receiving said warp threads in said picking position.

Claim 9

Guiding device for picked weft threads, comprising, in combination, a row of first guide members having first guide portions formed with first guide openings aligned along an axis, and having first end portions forming first aligned outlet gaps for said first guide openings, respectively; a row of second guide members alternately arranged relative to said first guide members and having second guide portions formed with second guide openings aligned along an axis, and having second end portions forming second aligned outlet gaps for said second guide openings; and operating means for moving said first and second guide members between a picking position located between warp threads, in which picking position said first and second guide portions are aligned in a warp shed along said axes which coincide, while said first and second outlet gaps are angularly spaced from each other about said coinciding axes and said guide portions extend across said outlet gaps of adjacent guide members, respectively, whereby said first and second guide openings form in said warp shed a passage for a picked weft substantially closed about the periphery thereof, and beating positions in which said first and second guide portions are located outside of the warp shed while the picked weft thread remains in the warp shed after passing successively through said first aligned outlet gaps and said second aligned outlet gaps.

Claim 10

Guiding device for picked weft threads, comprising, in combination, a row of first guide members having first guide portions formed with first guide openings aligned along an axis, and having first end portions forming first aligned outlet gaps for said first guide openings, respectively; a row of second guide members alternately arranged relative to said first guide members and having second guide portions formed with second guide openings aligned along an axis, and having second end portions forming second aligned outlet gaps for said second guide openings; and operating means for moving said first and second guide members between a picking position located between warp threads, in which picking position said first and second guide portions are aligned in a warp shed along said axes which coincide, while said first and second outlet gaps are angularly spaced from each other about said coinciding axes and said guide portions extend across said outlet gaps of adjacent guide members, respectively, whereby said first and second guide openings form in said warp shed a passage for a picked weft substantially closed about the periphery thereof, and beating positions in which said first and second guide portions are located outside of the warp shed while the picked weft thread remains in the warp shed after passing successively through said first aligned outlet gaps and said second aligned outlet gaps.

Claim 11

Guiding device as claimed in claim 8 wherein said operating means comprise rockable slay means supporting said second guide members for movement between said picking and beating positions, and linkage means connecting Said first guide members with said slay means for moving said first guide members in timed relation with said second guide members between said picking and beating positions so that first said first guide members and then said second guide members assume said beating positions thereof located outside of the warp shed.

Claim 12

Guiding device as claimed in claim 9 wherein said linkage means include a shaft turnably mounted on said slay means and fixedly supporting said first guide members, said second guide members having aligned openings through which said shaft passes, and a linkage connecting said shaft with said slay means and including at least one stationary pivot so that said shaft with said first guide members turns relative to said second guide members during movement of said slay means.

Claim 13

Guiding device as claimed in claim 8 wherein said first and second guide members have arms, respectively, at whose ends said first and second guide portions are located, respectively; and wherein said arms have recesses for receiving warp threads extending between adjacent arms of said first and second guide members in said picking position.

Claim 14

Guiding device as claimed in claim 11 wherein said arms of said first and second guide members have wedge-shaped cross sections disposed in opposite directions.