Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1004/CHE/2012 A
(19) INDIA
(22) Date of filing of Application :19/03/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : DEVICE AND METHOD FOR CONTROLLING FEED OF LAP IN COMBER
(51) International classification :D01G (71)Name of Applicant :
(31) Priority Document No
:2011- 1)KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
063201 Address of Applicant :2-1 Toyoda-cho Kariya-shi Aichiken
(32) Priority Date Japan
:22/03/2011
(33) Name of priority country :Japan (72)Name of Inventor :
(86) International Application No
Filing Date
:NA
:NA
1)SHINOZAKI Yutaka
2)KOJIMA Naoki
(87) International Publication No : NA
(61) Patent of Addition to Application Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(57) Abstract :
As shown in , the comber has a plurality of combing heads (11) each having a lap feeder (12, 12A, 26, 27). The lap feeder (12,
12A, 26, 27) has a motor (26) that can be driven independently of a combing drive device (24, 25). The lap feed control device
(28) is characterized in that it includes an arithmetic-logic unit (31) and a control unit (31). When the comber is operated with the
motor (26) driven at a constant speed on a trial basis, variation of sliver weight relative to decrease of diameter of the lap roll (L)
is measured. The arithmetic-logic unit (31) calculates a speed change pattern of the motor (26) from the measurements to equalize
the weight of the sliver or reduce the variation of the weight of the sliver. The control unit (31) controls the motor (26) in
accordance with the speed change pattern.
No. of Pages : 23 No. of Claims : 8
The Patent Office Journal 21/06/2013 13704