EP0189396A1 - Roue coulee de vehicule a moteur - Google Patents

Roue coulee de vehicule a moteur

Info

Publication number
EP0189396A1
EP0189396A1 EP84901954A EP84901954A EP0189396A1 EP 0189396 A1 EP0189396 A1 EP 0189396A1 EP 84901954 A EP84901954 A EP 84901954A EP 84901954 A EP84901954 A EP 84901954A EP 0189396 A1 EP0189396 A1 EP 0189396A1
Authority
EP
European Patent Office
Prior art keywords
rim
wheel
radial
recesses
pockets
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.)
Withdrawn
Application number
EP84901954A
Other languages
German (de)
English (en)
Inventor
Conrad BÜTTIKER
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.)
RON AG
Original Assignee
RON AG
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 RON AG filed Critical RON AG
Publication of EP0189396A1 publication Critical patent/EP0189396A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/06—Disc wheels, i.e. wheels with load-supporting disc body formed by casting

Definitions

  • the invention relates to a molded motor vehicle wheel, in particular made of light metal.
  • the invention is based on the object of optimally adapting a cast wheel, in particular made of light metal, to today's stylistic and aerodynamic requirements without unnecessary increase in material and weight.
  • the aforementioned task is solved by the measures mentioned in the claim.
  • the recesses are designed as a plurality of pockets separated in the circumferential direction by ribs.
  • the recesses extend behind the outer end wall and radially inward of the rim shoulder in the radial direction and in each case form pockets separated from one another by radial ribs.
  • the recesses extend in the axially parallel direction between the rim bed, which is elongated in the axially parallel direction up to the outer end wall, and the rim shoulder and each through radial ribs form separate pockets.
  • This configuration not only optimally achieves the object mentioned at the outset, but it also achieves the further extremely important advantage that the opening of the recesses or pockets opens up towards the outside of the rim on which the tire is seated seated tire receives a significantly increased air volume, this additional air volume being in the range of 400 c ⁇ r.
  • the properties of a wheel according to the invention provided with a tire are improved in such a way that there is a larger air reserve, the pressure drop is proportionately less with the same air loss and, moreover, the suspension properties are definitely improved.
  • the end face of the dividing ribs has in particular an axial and radial inclination inwards, so that a good surface for the tire to slide up during assembly is obtained.
  • FIG. 1 shows an axial section of a section of a cast wheel of a known type, with ribs visible from the outside;
  • FIG. 2 shows in axial section a section of a wheel to illustrate the problems with a molded, so-called smooth-surface automobile wheel, ie with a substantially smooth-surface outer end face;
  • 3 shows the essential section of an inventive wheel in axial section;
  • Fig. 4 is a view along IV-IV of Fig. 3;
  • FIG. 5 shows the essential section of a wheel according to the invention in a further embodiment in axial section
  • Fig. 6 is a view along the line VI-VI of Fig. 5;
  • Fig. 7 in axial section the essential portion of a wheel according to the invention, in a further modified embodiment.
  • the previously known wheel essentially consists of rim 3 and wheel bowl 4 with an inner wheel flange 6 which is fitted around the hub (not shown) and screw openings 7 for connection to an axle flange (not shown) of the axle of the vehicle.
  • the ribs can if necessary. extend axially to the outer circumference of the rim 3, but in general they are arranged recessed.
  • the rim has the rim bed 11, to which rim shoulders 12 and 13 are connected on both sides. This is followed in the axial direction by the rim flanges 14, only the outer flap 14 which is visible when the wheel is mounted being shown.
  • the rim flange 14 extends radially outward most, then comes the rim shoulder, and the least radial extension has the rim well.
  • a so-called hump 16 is provided at a certain axially parallel distance from the rim flange 14 in the area of the rim shoulder 12 and extends radially slightly beyond the rim shoulder 12.
  • a hump (not shown) is also provided on the rim shoulder 13 located on the other side of the rim base 11 in the axial direction at a corresponding distance from the rim flange (not shown).
  • the contour visible radially inside the rim 3 t when the wheel is mounted essentially follows the predetermined radially outer contour of the rim 3 t as explained above.
  • the rim can also be made relatively thin in this area, here its wall thickness is determined only by stability requirements, so that wheels of this type can be designed with relatively little material consumption, and thus, in particular from light metal, with a low weight.
  • wheels of this type can be designed with relatively little material consumption, and thus, in particular from light metal, with a low weight.
  • smooth-surface wheels are now required for cars, whereby smooth-surface here means that the wheels have a smooth-surface, in particular flat, in any case not significantly profiled outer end face.
  • smooth end faces are achieved by large wheel covers attached; with forged wheels such smooth faces are not a problem in themselves.
  • FIG. 2 shows such a smooth-surfaced automobile wheel in section, which has a smooth, flat end face 21 which extends radially inward from the rim flange 14.
  • the wheel bowl 4, which is only small in this wheel, can be covered by a small wheel cover.
  • FIG. 2 shows that in the case of such a cast, smooth-surface wheel with a smooth end face 21 that extends radially inward from the rim flange 14 in the front region, there is an unnecessary accumulation of material 22 between the outer end face 21, rim shoulder 12 and region of the rim 3 extending from the hump 16 to the rim bed 11. Such an accumulation of material 22 would prevent the required directional solidification of the casting, since the local solidification time within the accumulation of mass 22 would be too long.
  • the material accumulation 22 would mean an additional mass of up to 1000 g compared to conventional wheels and thus significantly more than 10% of the usual mass of such a wheel, which would lead to an increase in the unsprung masses and additional, costly material consumption without improving the dynamic and static properties of the cast wheel in any way.
  • the invention therefore proposes, on the one hand, for the above-mentioned stylistic and aerodynamic reasons to also design cast light-alloy wheels in a smooth-surface configuration, that is to say with a smooth end face 21 which extends radially inward from the rim flange, and on the other hand in the area between the end face 21, rim shoulder 12 and rim section extending from the hump 16 to the rim well 11 to avoid material accumulation 22 through recesses 23, 24, 30, as shown in FIGS
  • FIGS. 3 and 4 are shown.
  • the recesses 23 consist of pockets 23 which extend behind the end face 21 and extend radially from the inside of the wheel to the outside to stabilize the wheel. existing ribs 26.
  • This embodiment has manufacturing advantages because it can be produced with molds or molds, which have, for example, mechanically actuated slides.
  • pockets 24 are formed on the outside of the rim 3, axially parallel to the rim bed 11 below the rim shoulder 12, and half-molds with sand cores have to be used for their production, but these are considerable
  • the ribs 27 remaining between the individual pockets 24 serve to allow the inner edge of the tire to slide up over its shoulder 28 lying in the axial direction when the tire is mounted and to slide onto the rim shoulder 12 via the hump 16.
  • the recesses 30 extend radially inward from the outside of the rim shoulder 12 up to the radial height of a cylinder jacket defined by the rim bed 11 and each form pockets which are separated from one another by radial ribs 31, the Outside of the ribs 31 are identical to the outside of the rim shoulder 12, of which, in other words, only the ribs have remained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

La roue coulée de véhicule à moteur (2) comporte d'une part, dans sa zone de bord radialement et axialement extérieure, une surface frontale (21) lisse et s'étendant essentiellement radialement et d'autre part, dans cette zone, derrière la surface frontale (21), des évidements (24) dans le corps de roue coulée qui ont la forme de poches (24) séparées par des nervures radiales (27).
EP84901954A 1984-05-24 1984-05-24 Roue coulee de vehicule a moteur Withdrawn EP0189396A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1984/000083 WO1985005328A1 (fr) 1984-05-24 1984-05-24 Roue coulee de vehicule a moteur

Publications (1)

Publication Number Publication Date
EP0189396A1 true EP0189396A1 (fr) 1986-08-06

Family

ID=4541132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84901954A Withdrawn EP0189396A1 (fr) 1984-05-24 1984-05-24 Roue coulee de vehicule a moteur

Country Status (3)

Country Link
EP (1) EP0189396A1 (fr)
IT (1) IT1196131B (fr)
WO (1) WO1985005328A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541921Y2 (fr) * 1987-02-25 1993-10-22
DE4014368A1 (de) * 1989-09-15 1991-03-28 Kelsey Hayes Co Ganzflaechige radeinheit und verfahren zur herstellung derselben
US5292182A (en) * 1990-09-13 1994-03-08 Topy Kogyo Kabushiki Kaisha Light alloy cast wheel
JP2517383Y2 (ja) * 1990-09-13 1996-11-20 トピー工業株式会社 軽合金製鋳造ホイール
US5271663A (en) * 1991-04-19 1993-12-21 Superior Industries International, Inc. Wheel and method for correcting rotational imbalance of tires
GB2262073B (en) * 1991-11-29 1995-03-29 Alloy Wheels Int Ltd Methods and apparatus for manufacturing cast vehicle wheels
US6536111B1 (en) * 1996-07-24 2003-03-25 Hayes Lemmerz International, Inc. Process for spin forming a vehicle wheel
DE10260912A1 (de) * 2002-12-20 2004-07-01 Volkswagen Ag Kraftfahrzeugfelge
DE102004046635A1 (de) * 2004-09-25 2006-04-06 Ronal Gmbh Rad
US10710401B2 (en) 2017-12-07 2020-07-14 Ford Global Technologies, Llc Wheel apparatus for use with vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU536284B2 (en) * 1980-05-26 1984-05-03 General Motors-Holden's Automotive Limited Vehicle wheel
DE3217458C2 (de) * 1982-05-08 1987-05-07 Daimler-Benz Ag, 7000 Stuttgart Einstückig aus einer Leichtmetallegierung gegossenes oder geschmiedetes Rad für Kraftfahrzeuge, sowie Verfahren zu seiner Herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8505328A1 *

Also Published As

Publication number Publication date
IT8421271A1 (it) 1985-12-06
IT1196131B (it) 1988-11-10
WO1985005328A1 (fr) 1985-12-05
IT8421271A0 (it) 1984-06-06

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Inventor name: BUETTIKER, CONRAD