GB930801A - Device for turning plies in manufacture of pneumatic tyres - Google Patents

Device for turning plies in manufacture of pneumatic tyres

Info

Publication number
GB930801A
GB930801A GB4047558A GB4047558A GB930801A GB 930801 A GB930801 A GB 930801A GB 4047558 A GB4047558 A GB 4047558A GB 4047558 A GB4047558 A GB 4047558A GB 930801 A GB930801 A GB 930801A
Authority
GB
United Kingdom
Prior art keywords
sheet
band
ply
drum
shoulder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4047558A
Inventor
Herbert Frederick Leon Jenkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB4047558A priority Critical patent/GB930801A/en
Publication of GB930801A publication Critical patent/GB930801A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • B29D30/18—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3221—Folding over means, e.g. bladders or rigid arms
    • B29D2030/3228—Folding over means, e.g. bladders or rigid arms using one bladder acting on each side of the drum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

930,801. Tyre building. DUNLOP RUBBER CO. Ltd. Nov. 24, 1959 [Dec. 16, 1958], No. 40475/58. Class 144 (1). Carcase ply ends are turned against the shoulder of a stationary building drum a by means of a cylindrical flexible inflatable sheet 2 positioned adjacent the drum shoulder and having a narrow band 3 of greater extensibility than the rest of the sheet whereby, on initial inflation, Fig. 2, the band 3 distends to effect initial turn over of the ply end, and on further inflation, the rest of the sheet distends, Fig. 3, to move the distended band 3 against the drum shoulder for completion of the ply turn over. As shown for turn up of the ply ends around a bead core 10 and filler 11, the sheet comprises the radially outer wall of an annular tube which is of flat band form when deflated and is carried on a cylindrical support 4 releasably latched, by rotatable latches 6, 8, to a lug 5 on the drum support b. The tube is reinforced against extension by two cross-laid plies of bias cut textile fabric which extends only partially around the tube section to leave the unreinforced band 3. For ply turn down, the sheet would be supported around the drum shoulder for radially inward distension.
GB4047558A 1958-12-16 1958-12-16 Device for turning plies in manufacture of pneumatic tyres Expired GB930801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4047558A GB930801A (en) 1958-12-16 1958-12-16 Device for turning plies in manufacture of pneumatic tyres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4047558A GB930801A (en) 1958-12-16 1958-12-16 Device for turning plies in manufacture of pneumatic tyres

Publications (1)

Publication Number Publication Date
GB930801A true GB930801A (en) 1963-07-10

Family

ID=10415081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4047558A Expired GB930801A (en) 1958-12-16 1958-12-16 Device for turning plies in manufacture of pneumatic tyres

Country Status (1)

Country Link
GB (1) GB930801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130180647A1 (en) * 2010-09-28 2013-07-18 Maurizio Marchini Process and apparatus for manufacturing a tyre for vehicle wheels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130180647A1 (en) * 2010-09-28 2013-07-18 Maurizio Marchini Process and apparatus for manufacturing a tyre for vehicle wheels

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