Method for manufacturing belt-shaped cord member

Patent metadata

Field	Value
Publication number	US-11110679-B2
Application number	US-201916265788-A
Country	US
Kind code	B2
Filing date	Feb 1, 2019
Priority date	Feb 7, 2018
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

A method for manufacturing a belt-shaped cord member by cutting a rubber topped fabric produced by covering a topping rubber on an interdigitated fabric formed by interweaving many warp textile cords and few wefts to a predetermined width, comprising;an interdigitated fabric forming step of arranging a cord having conductivity for every predetermined number of the many warp textile cords which is then interwoven with the weft yarn,a rubber topped fabric producing step of topping rubber on the front and back surfaces of the interdigitated fabric, anda cutting step of cutting the produced rubber topped fabric by every predetermined number of the textile cords,wherein, in the cutting step,the rubber topped fabric is cut along the textile cord in which a cord having conductivity is arranged, after the position of the textile cords is specified by energizing the rubber topped fabric.

First claim

What is claimed is:

1. A method for manufacturing a belt-shaped cord member by cutting a rubber topped fabric produced by covering a topping rubber on an interdigitated fabric formed by interweaving non-conductive warp textile cords and non-conductive wefts to a predetermined width, comprising;
an interdigitated fabric forming step of arranging a cord having conductivity for every predetermined number of the non-conductive warp textile cords which is then interwoven with the non-conductive wefts to form an interdigitated fabric wherein all the wefts are non-conductive,
a rubber topped fabric producing step of topping rubber on the front and back surfaces of the interdigitated fabric to produce the rubber topped fabric, and
a cutting step of cutting the produced rubber topped fabric by every predetermined number of the textile cords,
wherein in the cutting step, the rubber topped fabric is cut along the textile cord in which a cord having conductivity is arranged, after the position of the textile cords is specified by energizing the rubber topped fabric.

2. The method for manufacturing a belt-shaped cord member to according to claim 1 , wherein, in the interdigitated fabric, forming step, the arrangement of the cord having conductivity is performed by inserting the cord along with the textile cord.

3. The method for manufacturing a belt-shaped cord member according to claim 2 , wherein insertion of the cord having conductivity to be performed along with the textile cord is performed linearly along the side face of the textile cord.

4. The method for manufacturing a belt-shaped cord member according to claim 2 , wherein insertion of the cord having conductivity to be performed along with the textile cord is performed by winding the cord in a spiral form on the side surface of the textile cord.

5. The method for manufacturing a belt-shaped cord member according to claim 1 , wherein thickness of the cord having conductivity is 120 to 240 dtex.

6. The method for manufacturing a belt-shaped cord member according to claim 1 , wherein, in the cutting step, a sensor is caused to scan in the width direction of the surface of the rubber topped fabric while energizing the cord having conductivity, and the position of the cord having conductivity is specified based on change in the electric or magnetic field detected by the sensor.

7. The method for manufacturing a belt-shaped cord member according to claim 1 , wherein the belt-shaped cord member is a jointless band.

Assignees

• Sumitomo Rubber Ind

Inventors

• Onishi Kei

Classifications

• B26D5/02

  Means for moving the cutting member into its operative position for cutting · CPC title

• B29D30/70 Primary

  Annular breakers · CPC title

• B26D5/08

  Means for actuating the cutting member to effect the cut · CPC title

• B26D5/32

  with the record carrier formed by the work itself · CPC title

• B29D30/38

  Textile inserts, e.g. cord or canvas layers, for tyres (making woven fabrics D03D); Treatment of inserts prior to building the tyre (pretreatment of inserts B29B15/00; manufacture of layers comprising fibrous parallel reinforcements of substantial or continuous length B29C70/20) · CPC title