WO2008031599A1 - Châssis pour go-karts - Google Patents

Châssis pour go-karts Download PDF

Info

Publication number
WO2008031599A1
WO2008031599A1 PCT/EP2007/007992 EP2007007992W WO2008031599A1 WO 2008031599 A1 WO2008031599 A1 WO 2008031599A1 EP 2007007992 W EP2007007992 W EP 2007007992W WO 2008031599 A1 WO2008031599 A1 WO 2008031599A1
Authority
WO
WIPO (PCT)
Prior art keywords
chassis
karts
self
supporting
supporting element
Prior art date
Application number
PCT/EP2007/007992
Other languages
English (en)
Inventor
Claudio Galvanin
Original Assignee
Claudio Galvanin
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 Claudio Galvanin filed Critical Claudio Galvanin
Priority to EP07802303A priority Critical patent/EP2066550A1/fr
Publication of WO2008031599A1 publication Critical patent/WO2008031599A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
    • B62D21/183—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 specially adapted for sports vehicles, e.g. race, dune buggies, go-karts

Definitions

  • the present invention relates to a chassis particularly for go-karts.
  • Go-karts (or more briefly karts) are constituted substantially by a tubular steel chassis, with no suspensions, and by a small-displacement engine which transfers the motion to a rigid rear axle with no differential.
  • the steel used is commonly a chromium-molybdenum steel and the tubing has a cross-section comprised between 22 and 35 mm.
  • the tubes that constitute the chassis are generally welded together by wire welding.
  • the design or configuration of the chassis can be more or less structured and complex and it is possible to use tubes having different cross- sections in order to improve the dynamic characteristics of the vehicle and optionally adapt it to the type of tire used.
  • the engine is usually supported by a cradle, which is rigidly coupled to the longitudinal members of the chassis for example by welds.
  • the braking system is constituted typically by a single disc, which is mounted at the rear on the axle, and by front brakes which act on each of the two front wheels.
  • the chassis described briefly above, though being widely used, are not devoid of drawbacks.
  • the aim of the present invention is to provide a chassis particularly for go-karts which allows to eliminate or at least reduce drastically the drawbacks mentioned above.
  • an object of the invention is to provide a chassis particularly for go-karts which is simpler to manufacture and can be adapted reliably and effectively to the various driving conditions.
  • Another object of the invention is to provide a chassis particularly for go-karts which has an extremely simple structure and a competitive production cost, so that its use is advantageous also from an economical standpoint.
  • a chassis particularly for go-karts, characterized in that it comprises at least one self-supporting element selected from a group of supports which comprises:
  • Figure l is a top elevation view of a chassis for go-karts according to the invention.
  • Figure 2 is a side elevation view of the chassis shown in Figure 1;
  • Figure 3 is a top elevation view of the block for the joint of a front wheel;
  • Figures 4 and 5 are side elevation views of a block for the joint of the front wheel shown in Figure 3;
  • Figure 6 is a sectional view of the block for the joint of the front wheel, taken along the plane of arrangement outlined by the line VI-VI of Figure 5;
  • Figure 7 is a front elevation view of an example of embodiment of a support for a bearing case of the rear axle
  • Figure 8 is a side elevation view of the support for a bearing case of the rear axle shown in Figure 7;
  • Figure 9 is a view, similar to Figure 7, but in partial cross-section;
  • Figure 10 is a front view of a variation of a flange for a connection between a longitudinal member and the respective self-supporting element
  • Figure 11 is a sectional view of the flange for connection along the plane of arrangement outlined by the line XI-XI of Figure 10. Ways of carrying out the Invention
  • a chassis particularly for go-karts, generally designated by the reference numeral 1, comprises two longitudinal members 2 which are connected one another, substantially at an intermediate portion, by at least one intermediate connecting crossmember
  • the chassis 1 comprises at least one self-supporting element 4, which is selected from a group of supports which comprises:
  • the self-supporting element or elements 4 are connected by means of flanges 5 to the remaining portion of the chassis 1 and in particular to the longitudinal members 2.
  • the self-supporting elements are part of the chassis 1 and are not supported by it.
  • the self-supporting element or elements 4 are, as mentioned, connected by means of flanges 5 to respective end portions 2a for connection provided on the longitudinal members 3 of the chassis 1.
  • one of the self-supporting elements 4 is constituted by the support 4a for the engine, it conveniently defines a seating region 6 for an engine and it is possible and advantageous to provide, to the rear thereof, a region for supporting a bearing case 8 of a rear axle 9.
  • the self-supporting elements 4 are constituted by the supports 4b for a bearing case of the rear axle 9, at least one of them can support directly a caliper assembly 10 of a braking device 11, which is arranged on the rear axle 9 and is designed to engage a braking disc 11a.
  • the bearing case or cases 4b can also support a plurality of caliper assemblies 10, which act for example on discs which are arranged on opposite sides of the rear axle 9 with respect to the bearing case 4b.
  • the chassis 1 can further be provided with a rear stiffening crossmember 12, which is connected, by means of a pair of terminals 12a, which optionally also are provided with a flange, to the self-supporting elements that support the bearing cases 4b of the rear axle 9.
  • the self-supporting element 4 is constituted by the supporting blocks 4c for the joint of the front wheel, it can have two flat connecting portions 13a and 13b which are mutually angled and can be connected, conveniently again by means of flanges, respectively to an end portion 2a for the connection of a longitudinal member 2 of the chassis 1 and to a connecting portion 14a of a front crossmember 14 of the chassis 1.
  • the engine can be fixed, for example by means of screws or fixing collars, to the lower base of the support 4a for the engine. However, nothing prevents fixing at lateral bands so as to facilitate all the fixing and adjustment operations.
  • the flange 5 comprises a fixing surface 5a, which is rigidly coupled to the end connecting portion 2a of a longitudinal member 2 and is designed to face an abutment region which is defined on the respective self-supporting element 4.
  • said screw-and-nut connection means can be constituted by a plurality of screw elements 5b, which engage within respective holes provided in the fixing surface 5 a and can be screwed into threaded holes provided at the respective abutment region of the self-supporting element 4.
  • the flange 5, as shown in Figures 10 and 11 can be provided by arranging at the terminal connecting portion 2b of the longitudinal members 2 at least one pin 5 c which can be inserted in a containment recess 5d which is formed on the self-supporting elements 4. According to this embodiment, it is particularly advantageous to interpose a layer of adhesive between the pin 5 c and the respective containment recess 5d, so as to rigidly couple the terminal or end connecting portion 2a to the respective self-supporting element 4.
  • the pin 5c comprises an abutment portion 5e which lie radially and right angles to its longitudinal extension/axis and is designed to face an abutment region 5f designed on the self-supporting element 4.
  • welds ensures on the one hand optimum rigidity to the chassis and at the same time allows to couple the various elements of the chassis rapidly and reliably.
  • the materials used, as well as the contingent shapes and dimensions may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un châssis, en particulier un châssis destiné à des go-karts, qui comprend au moins un élément autoportant (4) sélectionné parmi un groupe de supports qui comprend : un support de moteur (4a); un support (4b) pour un coffrage du palier de l'essieu arrière (9); un bloc de support (4c) pour un joint de la roue avant.
PCT/EP2007/007992 2006-09-15 2007-09-13 Châssis pour go-karts WO2008031599A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07802303A EP2066550A1 (fr) 2006-09-15 2007-09-13 Châssis pour go-karts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR20060140 ITVR20060140A1 (it) 2006-09-15 2006-09-15 Telaio, particolarmente per go-kart
ITVR2006A000140 2006-09-15

Publications (1)

Publication Number Publication Date
WO2008031599A1 true WO2008031599A1 (fr) 2008-03-20

Family

ID=38649988

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/007992 WO2008031599A1 (fr) 2006-09-15 2007-09-13 Châssis pour go-karts

Country Status (3)

Country Link
EP (1) EP2066550A1 (fr)
IT (1) ITVR20060140A1 (fr)
WO (1) WO2008031599A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20120150A1 (it) * 2012-07-19 2014-01-20 Monte Cornetto S R L Telaio, particolarmente per go-kart

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682668A (en) * 1985-06-20 1987-07-28 Salmon Michael E Go-cart
EP0255749A1 (fr) * 1986-08-07 1988-02-10 ALFA LANCIA S.p.A. Carrosserie pour véhicule, en particulier pour automobile, et son procédé de fabrication
EP0278479A2 (fr) * 1987-02-10 1988-08-17 Nissan Motor Co., Ltd. Structure de véhicule, en particulier châssis
US5199526A (en) * 1989-09-21 1993-04-06 Derviller Peter R J Lightweight high performance road racing vehicle
FR2772333A1 (fr) * 1997-12-15 1999-06-18 Bernard Villegier Vehicule automobile comportant un chassis tubulaire
US6102605A (en) * 1996-04-30 2000-08-15 Autokinetics, Inc. Cast corner node
WO2003033332A2 (fr) * 2001-10-16 2003-04-24 Ferrari S.P.A. Carrosserie de vehicule
DE10210147C1 (de) * 2002-03-07 2003-09-25 Daimler Chrysler Ag Tragstruktur eines Nutzfahrzeugs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682668A (en) * 1985-06-20 1987-07-28 Salmon Michael E Go-cart
EP0255749A1 (fr) * 1986-08-07 1988-02-10 ALFA LANCIA S.p.A. Carrosserie pour véhicule, en particulier pour automobile, et son procédé de fabrication
EP0278479A2 (fr) * 1987-02-10 1988-08-17 Nissan Motor Co., Ltd. Structure de véhicule, en particulier châssis
US5199526A (en) * 1989-09-21 1993-04-06 Derviller Peter R J Lightweight high performance road racing vehicle
US6102605A (en) * 1996-04-30 2000-08-15 Autokinetics, Inc. Cast corner node
FR2772333A1 (fr) * 1997-12-15 1999-06-18 Bernard Villegier Vehicule automobile comportant un chassis tubulaire
WO2003033332A2 (fr) * 2001-10-16 2003-04-24 Ferrari S.P.A. Carrosserie de vehicule
DE10210147C1 (de) * 2002-03-07 2003-09-25 Daimler Chrysler Ag Tragstruktur eines Nutzfahrzeugs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20120150A1 (it) * 2012-07-19 2014-01-20 Monte Cornetto S R L Telaio, particolarmente per go-kart

Also Published As

Publication number Publication date
ITVR20060140A1 (it) 2008-03-16
EP2066550A1 (fr) 2009-06-10

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