FR2496036A3 - Lightweight metal frame for motor vehicle steering wheel - uses square section tube for rim and single bent tube for spokes, with weak spots where spokes meet rim to give in accident - Google Patents
Lightweight metal frame for motor vehicle steering wheel - uses square section tube for rim and single bent tube for spokes, with weak spots where spokes meet rim to give in accident Download PDFInfo
- Publication number
- FR2496036A3 FR2496036A3 FR8104621A FR8104621A FR2496036A3 FR 2496036 A3 FR2496036 A3 FR 2496036A3 FR 8104621 A FR8104621 A FR 8104621A FR 8104621 A FR8104621 A FR 8104621A FR 2496036 A3 FR2496036 A3 FR 2496036A3
- Authority
- FR
- France
- Prior art keywords
- spokes
- rim
- welded
- tube
- metal frame
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 10
- 239000002184 metal Substances 0.000 title claims description 10
- 239000011324 bead Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000002984 plastic foam Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 229910000851 Alloy steel Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002991 molded plastic Substances 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
La présente invention concerne une armature métallique pour un volant de direction du type dans lequel ladite armature est recouverte d'une gaine en mousse de matière plastique moulée sur cette armature. The present invention relates to a metal frame for a steering wheel of the type in which said frame is covered with a plastic foam sheath molded on this frame.
Ce type de volant est évidemment beaucoup plus léger que les volants traditionnels et,cuts le Sit qaSl dépasse largement les caractéristiques de résistance qui sont nécessaires pour garantir son comportement en tant qu'organe de direction, il est susceptible de se déformer au moment d'un choc ou d'un accident au cours duquel ces caractéristiques sont naturellement surmontées, ce qui évite ainsi que des blessures soient causées au conducteur du véhicule. This type of steering wheel is obviously much lighter than traditional steering wheels and, cuts the Sit qaSl greatly exceeds the resistance characteristics which are necessary to guarantee its behavior as a steering member, it is liable to deform when an impact or accident in which these characteristics are naturally overcome, thus preventing injuries to the driver of the vehicle.
L'armature métallique suivant l'invention peut être fabriquée en acier, en alliages spéciaux d'aluminium ou en matière plastique et en plus de son comportement favorable pendant les essais de traction, de torsion, de fatigue,etc., elle présente une totale fiabilité en service, en plus du moment d'inertie polaire. En outre, cette armature a un poids très réduit, et son cercle périphérique est creux et présente une surface régulière et uniforme. The metal reinforcement according to the invention can be made of steel, special aluminum alloys or plastic and in addition to its favorable behavior during tensile, torsional, fatigue, etc. tests, it has a total reliability in service, in addition to the moment of polar inertia. In addition, this frame has a very reduced weight, and its peripheral circle is hollow and has a regular and uniform surface.
A cet effet, cette armature métallique pour volant de direc tison, laquelle est logée dans une masse de mousse de matière plastique moulée sur elle, est caractérisée en ce que son moyeu hexagonal est adossé,par l'un de ses catés, è un aplatissement réalisé latéralement dans la zone centrale d'une branche qui est soudée par résistance et qui est fixée au moyen d'un cordon de soudure à l'arc, cette branche étant coudée légèrement des deux côtés pour former deux tronçons obliques ou radiaux qui sont reliés au cercle extérieur en des points d'une même circonférence situés à 1400 l'un par rapport à l'autre. To this end, this metal frame for a steering wheel, which is housed in a mass of plastic foam molded on it, is characterized in that its hexagonal hub is backed by one of its catches, to a flattening made laterally in the central area of a branch which is resistance welded and which is fixed by means of an arc weld bead, this branch being bent slightly on both sides to form two oblique or radial sections which are connected to the outer circle at points of the same circumference located at 1400 relative to each other.
On décrira ci-après, à titre d'exemple non limitatif, une forme d'exécution de la présente invention en référence au dessin annexé sur lequel :
La figure 1 est une vue en plan de l'ensemble de l'armature métallique.An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the attached drawing in which:
Figure 1 is a plan view of the entire metal frame.
La figure 2 est une vue en coupe diamétrale faite suivant la ligne A-A de la figure 1. Figure 2 is a diametral sectional view taken along line A-A of Figure 1.
La figure 3 est une vue en coupe radiale faite suivant la ligne B de la figure 1. FIG. 3 is a view in radial section taken along line B of FIG. 1.
La figure 4 est une vue en coupe faite suivant la flèche F de la figure 1. FIG. 4 is a sectional view taken along the arrow F in FIG. 1.
Comme on peut le voir sur le dessin, l'armature métallique suivant l'invention comprend un moyeu hexagonal 1 qui est adossé, par
l'un de ses côtés ou faces, à un aplatissement,rdalisE latéralement, de la zone centrale d'une branche 2 qui est soudée par résistance et qui est fixée par un cordon de soudure à l'arc. Cette branche est coudée légèrement des deux côtés pour former deux tronçons obliques ou radiaux 2a et 2b qui sont reliés au cercle extérieur 3 en des points d'une même circonférence situés à 140 l'un de l'autre.As can be seen in the drawing, the metal frame according to the invention comprises a hexagonal hub 1 which is backed, by
one of its sides or faces, to a flattening, lateralized, of the central zone of a branch 2 which is welded by resistance and which is fixed by a weld bead to the arc. This branch is slightly bent on both sides to form two oblique or radial sections 2a and 2b which are connected to the outer circle 3 at points of the same circumference located 140 from one another.
Le cercle extérieur 3 n'est pas massif mais il est au contraire creux et il est réalisé à partir d'un tube à section carrée dont les extrémités sont soudées bout à bout, de manière à présenter l'un de ses côtés comme base d'assise. C'est précisément la fine paroi de ce tube (de 1 à 2,5 mm) qui entraîne des inconvénients importants en ce qui concerne le poids et la résistance, qui fait que, par suite de sa disposition spécifique, les arêtes du tube carré travaillent et donnent une grande résistance à la fatigue, sans que soit pour cela affectée sa constitution moléculaire. The outer circle 3 is not massive but on the contrary is hollow and it is produced from a square section tube whose ends are welded end to end, so as to present one of its sides as the basis for 'seated. It is precisely the thin wall of this tube (from 1 to 2.5 mm) which causes significant disadvantages with regard to the weight and resistance, which means that, due to its specific arrangement, the edges of the square tube work and give great resistance to fatigue, without affecting its molecular makeup.
Une caractéristique essentielle de l'armature métallique sui- vant l'invention est que les extrémités des deux tronçons radiaux 2a et 2b sont soumises àunaplatissement qui entraîne une conversion de leur section circulaire en section oblongue, cet aplatissement entraînant une épaisseur inférieure à la dimension entre les faces du tube.-caicrd (10 mm), comme on peut le voir sur la figure 4. De cette façon chacune de ces extrémités a une plus grande section pour le soudage et ne nuit pas aux sommets qui doivent donner une plus grande charge. Chacune de ces extrémités qui se termine avantageusement par des chanfreins ayant la même inclinaison, est soudée au cercle périphérique 3 au moyen d'un cordon périphérique de soudure à l'arc réalisé en atmosphère inerte de manière que ce cordon ne recouvre pas les arêtes de la section carrée du tube adjacentes à la face de ce dernier où est effectuée la soudure. An essential characteristic of the metal frame according to the invention is that the ends of the two radial sections 2a and 2b are subjected to a flattening which results in a conversion of their circular section into an oblong section, this flattening resulting in a thickness less than the dimension between the faces of the tube.-caicrd (10 mm), as can be seen in figure 4. In this way each of these ends has a larger section for welding and does not harm the vertices which must give a greater load . Each of these ends, which advantageously ends in chamfers having the same inclination, is welded to the peripheral circle 3 by means of a peripheral arc weld bead produced in an inert atmosphere so that this bead does not cover the edges of the square section of the tube adjacent to the face of the latter where the welding is carried out.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES1980255075U ES255075Y (en) | 1980-12-17 | 1980-12-17 | METALLIC ARMOR FOR DRIVING STEERING WHEEL |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2496036A3 true FR2496036A3 (en) | 1982-06-18 |
FR2496036B3 FR2496036B3 (en) | 1982-11-26 |
Family
ID=8412286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8104621A Granted FR2496036A3 (en) | 1980-12-17 | 1981-03-09 | Lightweight metal frame for motor vehicle steering wheel - uses square section tube for rim and single bent tube for spokes, with weak spots where spokes meet rim to give in accident |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE8108860U1 (en) |
ES (1) | ES255075Y (en) |
FR (1) | FR2496036A3 (en) |
IT (1) | IT8153003V0 (en) |
PT (1) | PT7240U (en) |
SE (1) | SE8104059L (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2555536A1 (en) * | 1983-11-25 | 1985-05-31 | Toyoda Gosei Kk | WHEEL FOR AUTOMOBILE |
FR2580575A1 (en) * | 1985-04-17 | 1986-10-24 | Toyoda Gosei Kk | Core for a steering wheel and method for making it |
US5988014A (en) * | 1996-06-21 | 1999-11-23 | Trw Automotive Safety Systems Gmbh | Sheet-metal steering wheel |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020103577A1 (en) | 2020-02-12 | 2021-08-12 | Paul Zinßer | Demountable bolt anchor and procedure for its dismantling |
-
1980
- 1980-12-17 ES ES1980255075U patent/ES255075Y/en not_active Expired
-
1981
- 1981-03-06 IT IT8153003U patent/IT8153003V0/en unknown
- 1981-03-09 FR FR8104621A patent/FR2496036A3/en active Granted
- 1981-03-26 DE DE19818108860U patent/DE8108860U1/en not_active Expired
- 1981-05-29 PT PT7240U patent/PT7240U/en unknown
- 1981-06-29 SE SE8104059A patent/SE8104059L/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2555536A1 (en) * | 1983-11-25 | 1985-05-31 | Toyoda Gosei Kk | WHEEL FOR AUTOMOBILE |
FR2580575A1 (en) * | 1985-04-17 | 1986-10-24 | Toyoda Gosei Kk | Core for a steering wheel and method for making it |
US5988014A (en) * | 1996-06-21 | 1999-11-23 | Trw Automotive Safety Systems Gmbh | Sheet-metal steering wheel |
Also Published As
Publication number | Publication date |
---|---|
ES255075Y (en) | 1982-01-01 |
FR2496036B3 (en) | 1982-11-26 |
PT7240U (en) | 1986-10-13 |
ES255075U (en) | 1981-05-01 |
IT8153003V0 (en) | 1981-03-06 |
SE8104059L (en) | 1982-06-18 |
DE8108860U1 (en) | 1981-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |