FR2137536A1 - Tyre rasping - by contacting tyre surface with cylindrical rasp - Google Patents

Tyre rasping - by contacting tyre surface with cylindrical rasp

Info

Publication number
FR2137536A1
FR2137536A1 FR7215855A FR7215855A FR2137536A1 FR 2137536 A1 FR2137536 A1 FR 2137536A1 FR 7215855 A FR7215855 A FR 7215855A FR 7215855 A FR7215855 A FR 7215855A FR 2137536 A1 FR2137536 A1 FR 2137536A1
Authority
FR
France
Prior art keywords
tyre
contacting
tread
supports
rasp
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.)
Granted
Application number
FR7215855A
Other languages
French (fr)
Other versions
FR2137536B1 (en
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Publication of FR2137536A1 publication Critical patent/FR2137536A1/en
Application granted granted Critical
Publication of FR2137536B1 publication Critical patent/FR2137536B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B17/0206—Selectively separating reinforcements from matrix material by destroying the interface bound before disintegrating the matrix to particles or powder, e.g. from tires or belts
    • 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)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/54—Retreading
    • B29D2030/541—Abrading the tyre, e.g. buffing, to remove tread and/or sidewalls rubber, to prepare it for retreading
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

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

Abstract

Tyre is rasped by (a) mounting the tyre on a rim which is moulded loosely on supports, (b) contacting the surface of the tyre with the side surface of a cylindrical rasp mounted on a horizontal shaft and driven so that the shaft slopes at an angle of 10-35 degrees pref. 22-32 degrees relative to the supports, (c) driving the rasp so that the tyre is rotated on the supports, and (d) removing the tread and at least a part of the breaker layers. Used for removing the tread remnant before retreading. The tread is removed rapidly, and the surface is left stuff. rough for the optimum bonding of layers of rubberised fabric.
FR7215855A 1971-05-14 1972-05-04 Tyre rasping - by contacting tyre surface with cylindrical rasp Granted FR2137536A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2451771 1971-05-14

Publications (2)

Publication Number Publication Date
FR2137536A1 true FR2137536A1 (en) 1972-12-29
FR2137536B1 FR2137536B1 (en) 1974-10-18

Family

ID=11213821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7215855A Granted FR2137536A1 (en) 1971-05-14 1972-05-04 Tyre rasping - by contacting tyre surface with cylindrical rasp

Country Status (5)

Country Link
AR (1) AR201184A1 (en)
BR (1) BR7202877D0 (en)
DE (1) DE2222292A1 (en)
FR (1) FR2137536A1 (en)
NL (1) NL7203755A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000023410A1 (en) * 2020-10-05 2022-04-05 Comet S R L TREAD MACHINING MACHINE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045778A (en) * 1935-05-29 1936-06-30 Wade H Huntley Machine for removing tread from tire casings

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045778A (en) * 1935-05-29 1936-06-30 Wade H Huntley Machine for removing tread from tire casings

Also Published As

Publication number Publication date
DE2222292A1 (en) 1972-11-30
BR7202877D0 (en) 1973-08-09
AR201184A1 (en) 1975-02-21
FR2137536B1 (en) 1974-10-18
NL7203755A (en) 1972-11-16

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