GB1357308A - Calibration of wheel rims - Google Patents

Calibration of wheel rims

Info

Publication number
GB1357308A
GB1357308A GB4899772A GB4899772A GB1357308A GB 1357308 A GB1357308 A GB 1357308A GB 4899772 A GB4899772 A GB 4899772A GB 4899772 A GB4899772 A GB 4899772A GB 1357308 A GB1357308 A GB 1357308A
Authority
GB
United Kingdom
Prior art keywords
rim
sectors
ram
partly
finished
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
GB4899772A
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.)
GIANETTI SpA
Original Assignee
GIANETTI 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 GIANETTI SpA filed Critical GIANETTI SpA
Publication of GB1357308A publication Critical patent/GB1357308A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/30—Making other particular articles wheels or the like wheel rims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/38—Making machine elements wheels; discs rims; tyres

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

1357308 Calibrating wheel-rims GIANETTI SpA 24 Oct 1972 [30 Oct 1971] 48997/72 Heading B3A A method of calibrating partly-finished wheel rims 1 comprises placing the partly-finished rim on to a calibrating machine and applying radially outwardly directed and radially inwardly directed forces to the rim successively. In operation a partly-finished rim 1 is placed on a disc 2 at the upper limit of stroke of a ram (3), Figs. 5-8, 10 (not shown). Ram (3) is then lowered to introduce the partly-finished wheel rim into the inner cavity of outer die D. Ram portions 6, 9 then descend until slidable sectors 8 of inner die E enter the rim, and annular member 10 has partially thrust slidable sectors 5 of the outer die D inwardly. Ram portion 9 remains stationary while ram portion 6 continues to descend. Sectors 8 expand radially outwardly, due to a frusto-conical member 7, and cause dilation of the rim. Straightening out of radial flange 1a is performed by compressing the flange between the flat surfaces of sectors 5, 8, Fig. 9 (not shown). The ram portion 6 is then partially raised so that sectors 8 carried by movable members 8a move radially inwardly under the action of biasing means (not shown) to become separated from the inner surface of the rim. Ram portion 9 is then lowered so that inclined planes 14, 15 engage to urge sectors 5 radially inwardly and complete the calibration operation, whence the rim can be unloaded either manually or automatically (as for the loading), by raising ram portions 6, 9 simultaneously with the disc 2.
GB4899772A 1971-10-30 1972-10-24 Calibration of wheel rims Expired GB1357308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7058471A IT940097B (en) 1971-10-30 1971-10-30 PROCEDURE FOR CALIBRATION OF WHEEL RIMS FOR INDUSTRIAL VEHICLES AND DEVICE FOR IMPLEMENTING THE PROCEDURE

Publications (1)

Publication Number Publication Date
GB1357308A true GB1357308A (en) 1974-06-19

Family

ID=11314096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4899772A Expired GB1357308A (en) 1971-10-30 1972-10-24 Calibration of wheel rims

Country Status (4)

Country Link
DE (1) DE2253253A1 (en)
FR (1) FR2158052B1 (en)
GB (1) GB1357308A (en)
IT (1) IT940097B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009684A2 (en) * 2006-07-19 2008-01-24 Tecnoforming S.P.A. Method for producing a light alloy wheel and wheel produced according to this method
CN109158502A (en) * 2018-09-29 2019-01-08 浙江龙文精密设备股份有限公司 Tank mouth thread forming device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9306550D0 (en) * 1993-03-30 1993-05-26 Fortaye Ltd Wheel rim

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009684A2 (en) * 2006-07-19 2008-01-24 Tecnoforming S.P.A. Method for producing a light alloy wheel and wheel produced according to this method
WO2008009684A3 (en) * 2006-07-19 2008-05-02 Tecnoforming S P A Method for producing a light alloy wheel and wheel produced according to this method
CN109158502A (en) * 2018-09-29 2019-01-08 浙江龙文精密设备股份有限公司 Tank mouth thread forming device
CN109158502B (en) * 2018-09-29 2023-10-24 浙江龙文精密设备有限公司 Tank mouth thread forming device

Also Published As

Publication number Publication date
FR2158052A1 (en) 1973-06-08
DE2253253A1 (en) 1973-05-03
FR2158052B1 (en) 1976-01-30
IT940097B (en) 1973-02-10

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee