Looms that use rigid rapiers eliminate entirely the need to assist the rapier head through the warp shed. 织机在使用刚性剑杆时完全没有必要引导剑杆头穿越梭口。
The taper stem head then transfers a vertical closing force to a lateral force which positively seats the knife against the seat face. 然后锥形阀杆头将垂直关闭力转换成侧向力，将闸刀放置到阀座表面上。
