Apparatus for sticking a tire component member

• US 4,769,104 A
• Filed: 10/30/1987
• Issued: 09/06/1988
• Est. Priority Date: 11/11/1986
• Status: Expired due to Fees

• Current Assignee: Bridgestone Corporation
• Original Assignee: Bridgestone Corporation
• Inventors: Okuyama, Kouji, Yamamoto, Makoto, Touya, Hiroki
• Primary Examiner(s): Hoag, Willard
• Application Number:
  US07/114,987
• Time in Patent Office: 312 Days
• Field of Search: 156/405.1, 156/406.4, 156/411
• US Class Current: 156/406.4
• CPC Class Codes: B29D 2030/4406 Adjusting the positions of the layers
• CPC Class Codes: B29D 2030/4412 angularly
• CPC Class Codes: B29D 2030/4418 laterally, e.g. sideways
• CPC Class Codes: B29D 2030/4437 Adjusting the dimensions of the layers
• CPC Class Codes: B29D 2030/4456 by using speed differences, e.g. between conveyors or between conveyor and drum
• CPC Class Codes: B29D 2030/4468 Holding the layers
• CPC Class Codes: B29D 2030/4481 by using magnetic forces, e.g. magnets
• CPC Class Codes: B29D 30/3007 by feeding a sheet perpendicular to the drum axis and joining the ends to form an annular element bending sheets and joining the edges B29C53/42

Abstract

An apparatus for sticking a tire component member (a cord cloth with rubber) having cords inserted therein at a predetermined bias angle and having its opposite ends cut respectively in parallel to the cords into a fixed length onto a forming drum upon manufacturing a rubber tire. This apparatus comprises a belt conveyor containing attracting means therein for receiving the cut tire component member and conveying it to the forming drum, widthwise positioning means for correcting a position in the widthwise direction of the tire component member on the belt conveyor by holding the tire component member from its both lateral sides, and front end and rear end reshaping means adapted to butt against cut edge surfaces at the front end and the rear end of the tire component member for correcting the shapes of these cut edges. Since positioning and front and rear end reshaping of the tire component member are effected on the belt conveyor, when the tire component member has been sticked onto the forming drum, the front end and the rear end of the tire component member can be aligned at a high precision, and so, the quality of the finished tire can be improved. The sticking step for the tire component member can be perfectly automated and a production efficiency can be raised.

Claims

1. An apparatus for sticking a tire component member having cords inserted therein at a predetermined bias angle and having its opposite ends cut respectively in parallel to said cords into a fixed length, onto a forming drum, comprising:

a belt conveyor containing attracting means therein for receiving said cut tire component member and conveying it to said forming drum;

widthwise positioning means for correcting a position in the widthwise direction of said tire component member on said belt conveyor by holding said tire component member from its both lateral sides;

front end reshaping means adapted to butt against a cut edge surface at the front end of said tire component member on said belt conveyor for correcting the shape of the front cut edge; and

rear end reshaping means adapted to butt against a cut edge surface at the rear end of said tire component member on said belt conveyor for correcting the shape of the rear cut edge.

2. An apparatus as claimed in claim 1, wherein said attracting means is a magnet disposed contiguously to a conveyor belt of said belt conveyor.

3. an apparatus as claimed in claim 1, wherein said widthwise positioning means comprises a pair of left and right centering bars extending along the opposite sides of a conveyor belt of said belt conveyor and displaceable in the widthwise direction of said conveyor belt.

4. An apparatus as claimed in claim 1, wherein said front end reshaping means comprises a correcting arm having one end pivotably mounted to a side portion of said belt conveyor and adapted to swing by a predetermined angle towards the center line of said belt conveyor so as to butt against a cut edge surface at the front end of said tire component member.

5. An apparatus as claimed in claim 4, wherein said correcting arm is provided in pair consisting of left and right correcting arms.

6. an apparatus as claimed in claim 1, wherein said rear end reshaping means comprises a correcting arm having one end pivotably mounted to a side portion of said belt conveyor and adapted to swing by a predetermined angle towards the center line of said belt conveyor so as to butt against a cut edge surface at the rear end of said tire component member.

7. An apparatus as claimed in claim 6, wherein said correcting arm is provided in pair consisting of left and right correcting arms.

8. An apparatus as claimed in claim 1, wherein said belt conveyor is supported in a vertically swingable manner via a horizontal support shaft extending in the widthwise direction on a base table that is slidable in the back and forth directions.

9. an apparatus as claimed in claim 1, wherein said belt conveyor is made slidable in the back and forth directions so as to move close to or far from said forming drum, and a transfer conveyor is disposed in a vertically displaceable manner at the position above the gap between the front end of said belt conveyor and said forming drum so as to bridge them.