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(11) | EP 0 726 341 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Weft thread inserting apparatus in rapier loom |
| (57) In a weft thread inserting apparatus in a rapier loom, a rapier band 4 having a first
end fixed to a rapier head 23 includes a row of engaging holes 22 defined in the lengthwise
direction thereof. The rapier band 4 is wound around a rapier wheel 3 in the state
that the engaging holes 22 are engaged with a row of engaging projections 21 defined
to the circumference of the rapier wheel 3. Presser rollers 24, 25 are rotatably disposed
at positions corresponding to the positions where the rapier band 4 leaves the rapier
wheel 3 and an endless belt 32 is wound aroung the rapier wheel 3, the presser rollers
24, 25 and a tension roller 31 so that the endless belt 32 does not interfere with
the rapier band 4. The outside diameter of the portion of the rapier wheel 3 around
which the belt 32 is wound and the outside diameters of the presser rollers 24, 25
are set such that the reciprocating speed of the rapier band 4 coincides with the
circumferential speeds of the presser rollers 24, 25. With this arrangement, a wide
fabric can be handled without increasing the diameter of the rapier wheel, sliding
friction can be avoided between the rapier band and the presser members to thereby
improve the durability of the rapier band. |