Axle suspension for vehicles

The invention relates to an axle suspension for vehicles, comprising at least in each case one substantially in the vehicle longitudinal direction extending steering arm on either side of the median longitudinal plane, which with its front end to a chassis fixed Support point articulated and at a distance therefrom to the axle body is connected, wherein preferably a from the axle body projecting respectively backwards Achslenkerabschnitt as lower Bearing of an air spring is used, on top of which the Vehicle chassis is supported, as well as with a disc brake, especially floating-caliper brake caliper for each associated wheel. In this case, the axle body is commonly referred to as formed continuous round-piece axle tube, forming a U-stabilizer with the control arms.

In known axle suspensions of this type are the wishbone arranged as a parabola arm above the axle body so that the Actuating device of the disk brake so far down must be rotated to and chippings, water spray other wear is exposed to a greater extent and in The case of the bottoming of the vehicle even destroyed can.

Object of the present invention, it is, the disadvantages eliminate known axle suspensions and they so to design that is easy to install a secure Accommodating the sensitive parts of the application device of the disc brake is provided.

This object is achieved according to example. Achieved in that the respective axle guide comprises a recess in which Parts of the application device of the disc brake, in particular the respective brake cylinder, is accommodated. This is he protected from damage, in particular any ATVs is important. On the other hand he is but easy to install and easy to access. The suspension link can advantageously formed from sheet metal profiles be, are from which the recesses cut. It is also conceivable, for reasons of stability, the axle guide each two spaced substantially parallel to form vertical sidewalls, wherein the side cheeks are cut accordingly.

The recess is preferably in the direction of travel before Axle body, so that the brake cylinder with its leads relatively close to the respective bearing point of Axle guide is and therefore performs only small movements.

In order to achieve that the axle guide for through the recess the inclusion of parts of the application device of the disc brake is not seriously weakened, is the recess In a preferred embodiment of the invention in the neutral zone of the stress of the axle guide.

Furthermore, it is advantageous if the supply lines of the respective brake cylinder at least partially in the Recess lie and thus against the above-mentioned influences are protected. It is not just about the pneumatic, but also any hydraulic and electrical supply lines, eg for certain sensors, such as wear sensors Brake.

In another particular embodiment, are the brake cylinder-side terminals of the leads of the respective brake cylinder between the brake cylinder and the bearing point of the axle guide. Also hereby is (additionally) ensures that the feed lines of the brake cylinder because of their proximity to the bearing point of the respective axle guide only slight movements during boarding and rebound are exposed. This positioning also ensures that leads to other vehicle parts such as cross beams, Shock etc. do not collide.

The connections of the leads of the respective brake cylinder can be configured differently, so eg. for Low usual rubber fabric pressure hoses. However, according to the invention are preferably designed as plug connections eg designed for plastic pipes to a rapid and reliable assembly and disassembly guarantee.

According to a further preferred feature of the invention are the Leads of the respective brake cylinder at least partially laid in cavities of the axle guide or on the wishbone. The vehicle manufacturer may be used as in this way the suspension link delivered module unit including supply lines are such that the assembly is simplified on-site.

For the same purpose, the more preferable in the invention proposed measure, according to which in or on the respective Wishbone running leads on the one hand in achslenkerfesten Connecting sockets in the vicinity of the bearing point and On the other hand in achslenkerfesten sockets near the disc brake open. The vehicle manufacturer therefore needs nor the supply lines for example for compressed air and electricity insert the corresponding coupling bodies.

Thus, the wiring cost of the vehicle will continue reduced.

Other objects, features, advantages and application possibilities the present invention will become apparent from the following Description of exemplary embodiments with reference to the drawing. All described and / or illustrated Singularly or in any meaningful combination the subject of the present invention, irrespective of their inclusion in individual claims or their dependency.

Show it:<dl tsize="14"><dt>Fig. 1</dt><dd>a schematic side view of the invention having Fahrzeugachsaufhängung in the area one side of a (to be seen in vertical section) Vehicle axle, said arrangement at the opposite is the end of the axle beam as formed,</dd><dt>FIGS. 2a to 4b</dt><dd>different in side view and top view Other configurations of the invented axle suspension.</dd></dl>

The axle suspension for vehicles illustrated inventive has on both sides of the vehicle longitudinal center plane each one in extending substantially in the vehicle longitudinal direction wishbone 1. The wishbone 1, of which each of the figures only one can be seen, are at its front in the direction of travel End articulated to a chassis fixed bearing point. 2 Of the Bearing point 2 is in the illustrated case of a at the Vehicle chassis fixed bearing block provided. 8 Of the Bearing block 8 serves as shown in FIG. 1 including the support the wishbone 1 via an air spring 9 an axle lift. At a distance behind the bearing point 2, the Wishbone 1 welded to an axle. 4 One of the Axle body 4 from projecting each backward Achslenkerabschnitt 3 can not be considered a lower bearing (in Fig. 1 illustrated) air spring 5 are, on top of which is the vehicle chassis is supported.

In the embodiment shown in Fig. 1 is the Axle body 4 by two in or on the wishbone 1 welded, perpendicular of these outwardly projecting axle stubs 4 'and a crossbar 4' 'formed. In Fig. 1 are the inner front end of a stub axle 4 'in plan view and the crossbar 4 '' shown in section. The Crossbar 4 '' is from one to the stub axles 4 ' coaxial or paraxial open profile made of edged Sheet formed. It forms the crossbar 4 '' with the two control arms 1 a U-stabilizer in the manner of Composite spring axis. Due to the formation of the crosspiece 4 '' as an open profile, it may on the one hand and torsionally on the other hand be rigid so that advantageous handling characteristics both in uniform and in uneven Compression of the vehicle wheels can be achieved. Particularly Case, the cross-member 4 '' of a forwardly open C-profile educated. This is particularly easy to manufacture.

The suspension link 1 may, which is not seen in Fig. 1, two spaced substantially parallel have vertical side walls 6, of which in Fig. 1, an inner side wall can be seen. 6 The stub shaft 4 ' are at least by the respective outer side wall 6 in essentially guided positively and are in their end-side inner end on the outer side of the inner Side wall 6 at. In this case, the stub axle 4 'with both the outer side wall 6 of the axle guide 1 as well as with the inner side wall 6 by means of the stub axle 4 'revolving Weld lines 7 are welded, preferably both on the outside and on the inside of the outer side wall 6, and then, of course, with the Outside of the inner side wall 6 to which the stub axle 4 'abuts with its inner end.

In the embodiment of FIG. 1 of the stub axle is 4 'by the inner side wall 6 of the axle guide 1 is passed so that it is only slightly above the inside the inner side wall 6 protrudes. In this case, the stub axle 4 'then also on both the outside and also on the inside of the inner side wall 6 with this welded over circumferential weld line. 7 The crossbeam 4 '' needs only with the respective inner side wall 6 of the to be associated wishbones. 1

As shown in FIG. 1, the respective Wishbone 1 a recess 10, in which parts of the Brake application device of the disc brake 11, in particular the respective brake cylinders 13, are housed. Here, the Recess 10 provided in the direction of travel in front of the axle body. 4 She is also set in the neutral zone Stress of the axle guide 1. Further, care taken to ensure that the brake cylinder 13 in the amount of the connecting line between the bearing point 2 and the center 16 of the Axle body 4.

In FIGS. 2a to 4b are three different embodiments one incorporating the invention Axle illustrated, which essentially only by the arrangement of Leads 14 for each cylinder 13 from each other differ. Notwithstanding Fig. 1 here is the axle body 4 formed by a continuous axle tube, which in the Sidewalls 6 is added to the suspension link. 1 In any case , care taken to ensure that these leads 14 at least are also partly housed in the recess 10 and thus protected are. The brake cylinder side Terminals 15 of the leads 14 of the respective brake cylinder 13 are preferably between the brake cylinder 13 and the Bearing point 2 of the axle guide 1 so that they and the inputs Rebounding exposed possible small movements. there , the terminals 15 of the leads 14 of the respective Brake cylinder 13 is preferably designed as plug connections, for example for Plastic pipes formed. Leads 14 of each brake cylinder 13 may further include at least partially, ie in its portion in front of the recess 10, in or extend to the steering arm 1, so that the wishbone 1 accordingly assembled the vehicle manufacturer to be delivered can. Here occur, for example. Leads 14 adjacent to the Bearing point 2 in a cavity of the axle guide 1 on and off the latter adjacent to the recess 10, in which the Brake cylinder 13 is housed again. The in or at the respective axle guide 1 extending leads 14 open preferably one hand in achslenkerfesten Connecting sockets in the vicinity of the bearing point 2, and on the other hand achslenkerfesten in sockets in the vicinity of the Disk brake 11, so that the corresponding female terminals only nor the corresponding supply lines for example. compressed air and electricity, and the connecting lines to the brake cylinder and the associated sensors must be connected.

LIST OF REFERENCE NUMBERS

<dl tsize="3" compact="compact"><dt>1</dt><dd>wishbone</dd><dt>2</dt><dd>bearing point</dd><dt>3</dt><dd>rear Achslenkerabschnitt</dd><dt>4</dt><dd>axle body</dd><dt>4 '</dt><dd>stub axle</dd><dt>4 ''</dt><dd>crossbeam</dd><dt>5</dt><dd>air spring</dd><dt>6</dt><dd>Sidewall</dd><dt>7</dt><dd>weld lines</dd><dt>8th</dt><dd>bearing block</dd><dt>9</dt><dd>Air spring for axle lift</dd><dt>10</dt><dd>recess</dd><dt>11</dt><dd>disc brake</dd><dt>12</dt><dd>front Achslenkerabschnitt</dd><dt>13</dt><dd>brake cylinder</dd><dt>14</dt><dd>leads</dd><dt>15</dt><dd>connections</dd><dt>16</dt><dd>Focus</dd></dl>