Title:
エアジェット織機
Document Type and Number:
Japanese Patent JP6879061
Kind Code:
B2
Abstract:
An air jet loom (100) includes a reed (7) having a tunnel (7a) and a main nozzle (10) flying a weft yarn (20) into the tunnel (7a) by air jet injection to perform weft insertion. An accelerating tube (1) of the main nozzle (10) has a tapered portion (1a) and a straight portion (1b). Yarn speed ratio (q) of the weft yarn (20) is defined by a speed ratio (U1/U2) of a speed (U1) with respect to a speed (U2). The yarn speed ratio (q) is obtained by relationship among an entire length (L) of the accelerating tube (1), a ratio (A/L) of a length (A) of the straight portion (1b) with respect to the entire length (L) of the accelerating tube (1), and an inclination angle (¸) of an inner surface of the tapered portion (1a). The entire length (L), the ratio (A/L), and the inclination angle (¸) are determined such that the yarn speed ratio (q) is smaller than a maximum value (qmax) that is obtained by Expression 1, qmax = (c2 / c1) + 1.
Inventors:
Yuichiro Kiguchi
Yoichi Makino
Yoichi Makino
Application Number:
JP2017110639A
Publication Date:
June 02, 2021
Filing Date:
June 05, 2017
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
D03D47/30
Domestic Patent References:
| JP2004156162A | ||||
| JP55163237A | ||||
| JP2216240A | ||||
| JP63288238A | ||||
| JP5339845A | ||||
| JP58004850A | ||||
| JP56068137A |
Foreign References:
| CN2789289Y | ||||
| US4550752 | ||||
| DE3145326A1 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Ichiro Oi
Kazuhiro Mitsunaga
Kanayama Asuka
Kajinami order
Ichiro Oi
Kazuhiro Mitsunaga
Kanayama Asuka