DE4311537C2 - Reinforcement device for telescopic forks of motorcycles - Google Patents

Description

The invention relates to a front suspension for Motorcycles according to the preamble of claim 1.

The telescopic fork is common for large-scale products. she enables an exact guidance of the wheel even with long ones Spring travel. Modern telescopic forks work precisely, have however, the disadvantage that they are in equipping the bike with sidecar for twisting in the steering direction tend. By twisting the fork legs to each other when cornering, the suspension jams. To improve these disadvantages, fork stabilizers are used offered, both at the top of the lower slide tubes Connect fork legs and thus the twisting of the bars contain.

Another disadvantage of telescopic forks is that unchangeable caster of the front wheel. There are problems, especially when mounting a sidecar quickly make the standard telescopic forks unsuitable. So the trend towards pushed long swingarm runs as Front suspension when building trailers. The caster is individually definable, through the constructive separation of Suspension and damping occurs no tension and Suspension of the suspension. However, they twist Spars of the lower tuning fork strongly against each other, so that must be dimensioned extremely strong. This does the Long swing arm very heavy, which in turn causes chassis problems poses. Swing machines are therefore usually included equipped with additional steering dampers. The upgrade to Swing arm is expensive, new suspension elements are required and the result is still a compromise.

From DE 4142 429 C1 is a front suspension for Motorcycles of the type mentioned are known. That one provided bracket is supported as a brake handlebar over a Support strut assembly on the frame of the motorcycle to the To be able to influence the brake steering torque.

Furthermore, it is from the magazine "motorcycle", issue 25, 1984, P. 67, in connection with a so-called "anti-dive" - Known arrangement, two lateral support struts between the lower triple tree and the free ends of two at the top Arrange articulated levers at the end of the guide tubes. It can prevent the fork from twisting Support strut arrangement, however, not to contribute.

The object of the invention is to provide a front suspension type mentioned so that a twisting the fork legs to each other, especially when operating sidecars is counteracted.

This object is achieved with the characteristic Features of claim 1 solved.

With the features of claim 2, the wake can simply shorten it. It just has to be according to the Measure the desired reduction in wake a new one Axle mount can be created in which the wheel by means of previous or another axis before the previous one Axis position is attached. With this simple possibility of  The steering and restoring forces can be changed just influence the steering.

Exemplary embodiments of the invention are described below described the drawing.

It shows

Fig. 1 shows a first embodiment of the invention in side view,

Fig. 2 shows a second embodiment of the invention in side view and

Fig. 3 is a plan view of the second embodiment. Fig. 2.

A stable bracket 1 includes the front wheel 10 at the rear and is mounted on both sides via pivot bearings 7 on the front axle receptacles of the sliding tubes of the telescopic fork 6 .

The bracket 1 is supported in its rear region via two lateral or a central support strut 5 on the lower fork bridge 4 , the support strut (s) 5 being connected to the lower fork bridge 4 and the bracket 1 via articulated bearings 2 a and 2 b or are.

The axis of the front wheel can be mounted in the front axle mounts of the sliding tubes of the telescopic fork 6 ( Fig. 1).

The axis of the front wheel 10 can, however, also be mounted in front axle receptacles 3 , which are provided in extensions of the bracket 1 to the front beyond the pivot bearings 7 , as a result of which the caster of the front wheel 10 can be shortened ( FIGS. 2 and 3).

Claims (2)

1.Front wheel suspension for motorcycles, with a telescopic fork, with a bracket which surrounds the front wheel at the rear and is pivotable on both sides of the front axle receptacles of the sliding tubes of the telescopic fork, and a support strut arrangement which has one end on the bracket in the rear area and the other end on one The spring-loaded part of the motorcycle is articulated, characterized in that the support strut arrangement is formed by a central support strut or two lateral support struts ( 5 ) which are articulated at their other end to the lower fork bridge (spherical bearing 2 a) of the telescopic fork ( 6 ). 2. Front wheel suspension according to claim 1, characterized in that the bracket ( 1 ) on its bearing points (pivot bearing 7 ) on the sliding tubes of the telescopic fork ( 6 ) is extended forward and receives the front axle there (front axle 3 ).