Manufacturing method of tire component and manufacturing device of tire component

Patent metadata

Field	Value
Publication number	US-11318694-B2
Application number	US-201816219002-A
Country	US
Kind code	B2
Filing date	Dec 13, 2018
Priority date	Dec 28, 2017
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

During manufacturing of a tire component that includes a process of adhering a sheet-like rubber member 8b that is held by a supply section 30 to a drum 22, positions of ends 7d1, 7d2 n a width direction of the sheet-like rubber member 8b are detected by using sensors 52, 54 provided between the supply section 30 and the drum 22, and the supply section 30 is moved in a width direction X of the sheet-like rubber member 8b in accordance with the detected positions, so as to adhere the sheet-like rubber member 8b to a specified position on the drum 22.

First claim

What is claimed is:

1. A manufacturing method of a tire component, the manufacturing method including a process of adhering a sheet-like rubber member that is held in a supply section to a drum, the manufacturing method of the tire component comprising:
detecting positions of the sheet-like rubber member ends in a width direction using sensors that are provided between the supply section and the drum, moving the supply section in the width direction of the sheet-like rubber member in accordance with the detected positions, and adhering the sheet-like rubber member to a specified position on the drum,
wherein the sensors provided between the supply section and the drum detect positions of the ends in a width direction of the sheet-like rubber member from the time of the sheet-like rubber member leaving the supply section to the time of the sheet-like rubber member reaching the drum, wherein
the sheet-like rubber member has a parallelogram shape that includes paired lateral sides and paired inclined sides, the paired lateral sides constituting the ends in the width direction of the sheet-like rubber member and being arranged in parallel with a moving direction of the sheet-like rubber member that is moved from the supply section to the drum, and the paired inclined sides being inclined with respect to the moving direction of the sheet-like rubber member at ends in the moving direction,
the sensors are provided to be able to detect the positions of both of the lateral sides,
a tip of one of the paired inclined sides on a tip side of the sheet-like rubber, which is wound around the winding cylinder, is adhered to a specified position on an outer circumferential surface of the drum through the sensors and a removing roller, and
from the time at which the adhesion of the sheet-like rubber member is initiated to the time at which the sensors detect both lateral sides, the supply section is moved in the width direction of the sheet-like rubber member in accordance with the position of the one lateral side, and after the sensors detect both of the lateral sides, the supply section is moved in the width direction of the sheet-like rubber member in accordance with the position of other lateral side.

2. The manufacturing method of the tire component according to claim 1 , wherein initial adherence of the sheet-like rubber member occurs while only one lateral side is detected by the sensors.

3. The manufacturing method of the tire component according to claim 1 , wherein
in the cases where tine sensors detect the positions of the ends in the width direction of the sheet-like rubber member and the positions of the ends in the width direction of the sheet-like rubber member that are detected by the sensors deviate to one side in the width direction of the sheet-like rubber member from a specified reference range, the supply section is moved to the other side in the width direction of the sheet-like rubber member.

4. The manufacturing method of the tire component according to claim 3 , wherein
a movement amount for moving the supply section in the width direction of the sheet-like rubber member is a constant amount regardless of a deviation amount from the reference range.

5. The manufacturing method of the tire component according to claim 3 , wherein
in the case where the sheet-like rubber member is moved for specified length since the initiation of the adhesion of the sheet-like rubber member to the drum, a reference position of the reference range is changed to a position on an outer side in the width direction of the sheet-like rubber member.

6. The manufacturing method of the tire component according to claim 1 , wherein
the supply section includes a winding cylinder around which the sheet-like rubber member is wound,
when the drum starts rotating and winding the sheet-like rubber member therearound from the winding cylinder, the winding cylinder rotates to feed the sheet-like rubber member, and
after rotation of the winding cylinder is stopped, rotation of the drum is stopped, so as to terminate manufacturing of the tire component.

7. The manufacturing method of the tire component according to claim 1 , wherein an angle that is defined by the lateral side and the inclined side on the tip side of the sheet-like rubber member is equal to or larger than 6° and is equal to or smaller than 9°.

Assignees

• Toyo Tire & Rubber Co
• Toyo Tire Corp

Inventors

• Ito Shuhei

Classifications

• B29D30/3028 Primary

  by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the drum axis, to form an annular element (winding and joining, helically in general B29C53/58) · CPC title

• B29D30/44

  Stretching or treating the layers before application on the drum (during application B29D30/30) · 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

• B29D30/0016

  Handling tyres or parts thereof, e.g. supplying, storing, conveying (B29D30/2607 takes precedence; loading and unloading vulcanizing presses B29D30/0603) · CPC title

• B29L2030/005

  Belts · CPC title