DE20011182U1 - Air-sprung and oil-damped device for the sprung suspension of two-wheelers - Google Patents

Description

^ . Tino Simic St. Antonstr. 14 D-47799 Krefeld _#fe \. _t »?LJ 1 - (φ&idiagr;^ **f& 2253*3*»- ***'»

Air-sprung and oil-damped device for spring-loaded suspension of £\veirtd ^ladÄTt J (VRG-MUl) Registration from 30.06.2000 »4u%>.*200 lPtZLS' ·»■ «*

Page 1 DESIGN PROTECTION APPLICATION:

Air-sprung and oil-damped device for spring suspension of two-wheel wheels.

DESCRIPTION

TECHNICAL AREA

The invention relates to a device for the spring-loaded suspension of the two two-wheeled wheels on the bicycle frame.

, STATE OF THE ART and CRITICISM

Many spring suspensions for bicycle wheels are known, but none have succeeded in meeting the requirements well and cost-effectively, because up to now all devices have been too complicated, too heavy, too costly and technically inadequately constructed.

All suspension front forks to date only use the distance between the frame mount and the wheel axle. This length is divided into at least three parts, 2 x suspension travel and 1x plain bearings, and therefore the shorter the plain bearing, the longer the suspension travel and the greater the leverage in the bearing.

All spring-loaded rear wheel suspensions to date are only attached to a rotating bearing shaft on the bicycle frame. This means that the combined forces caused by the weight of the rider, impacts from the rear wheel and all horizontal and vertical side forces are transferred to the frame of the bicycle via unfavorable components and leverage effects with up to eight times the force magnification, meaning that the entire bicycle frame is built as a wear part that cannot be repaired .

Because of these leverage forces on both wheels, the lightweight construction of the bicycle, which must be adhered to at all costs, the technical solutions offered today cannot be considered satisfactory. Especially the one that offers the entire bicycle frame as a wearing part.

TASK OF THE EREINDUN ¹ G

The purpose of the device is to eliminate the existing leverage forces on both wheels and to enable the construction of a suspended bicycle frame that is stable, lightweight and just as inexpensive to produce as a non-suspended bicycle.

DESCRIPTION OF THE INVENTION

With the presented devices for spring suspension of the bicycle wheels, both wheels are attached to the frame via an air suspension with oil damping, where the driver can adjust the hardness of the suspension to his own weight and wishes using a commercially available air pump, so that the two wheels alone provide spring, as has so far only been known from the front wheel, and thus the bicycle frame is no longer built as a wearing part, but only the spring elements are replaceable.

The invention presented is designed in such a way that it can be used in almost the same way on both wheels of the two-wheeler and is constructed as follows.

Tino Simic St. Antonstr. 14 D- 47799 KrefeltL »Tel, %J 51 - §S7?S * Fix 23«33 * · J Air-sprung and oil-damped device for suspension »on «two-wheeler* wheels. I (VRG-VRJ-1) Registration from 30.06.200(W fcivf «*■* 200*H &Idigr; 82.^ ^{1 #} * **

The supporting immersion tube (1) is made from a bent raw piece, or from two individual tubes, in such a way that they still reach under the wheel axle on both sides, with the greatest possible spring travel, so that all forces arising from the wheel axle are absorbed in the shortest possible way and without leverage forces .

Inside it there is a part (2) on each side for oil damping and a part (3) for space-air-oil limitation, which are connected to each other with a thin tube "capillary" (4) in such a way that only the two air spaces (5) and not the oil (6) are connected to each other.

There are two plain bearings on the outside of the dip tubes on both sides. One for the wheel axles - mount no. (7) and one for the brakes - mount no. (8), all four of which are firmly connected to one another with a strong connection (9).

Two fastening clamps are also mounted on each side. The clamp (10) is used, in addition to various fastenings, together with 2 x damping (10a), also to limit the spring travel in both directions and, because it is removable, also for assembling and disassembling the complete suspension unit.

The clamp (11) is used, apart from various fastenings, in conjunction with reinforcement (12) also for absorbing long forces on the front wheel and is permanently mounted.

At the bottom, just before the end of the dip tube, a lip seal (13) is arranged between the dip tube (1) and the sliding part (7), and below it is the oil container (14) with oil damping increase (15) and air valve (16).

At the top of the front wheel, the fork tube (1) and the reinforcement (12) are attached to the handlebar mounting tube (18) via the fastening part (17). When the rear wheel is mounted, the shackles (7) and (8) are split in two and one side is permanently attached to the frame, so that only the spring element can be replaced.

This design eliminates all leverage forces and presents devices that, despite their low weight, provide good and safe guidance of the two-wheeler wheels and are very cost-effective to produce.

BEST WAY OF IMPLEMENTING AND MARKETING THE INVENTION

The device presented for spring suspension of the two bicycle wheels is constructed from simple individual parts and can therefore be produced inexpensively. The invention offers the advantage that it can be used on any known bicycle frame design and can therefore be used on a very wide range of different two-wheelers.

The drawings, sheets 4, 5 and 6, show a principle representation, a mixture of section and elevation drawing. Drawing sheet 4, a front wheel fork, drawing sheet 5 design of a rear wheel attachment, both with an indicated luggage rack with side bag protection and drawing sheet 6 a full-suspension frame.

Claims (3)

1) Air-sprung and oil-damped device for spring suspension of two-wheel wheels, characterized in that the spring travel length can be freely selected without any effect disadvantage and that the supporting immersion tube ( 1 ) is made from a bent blank which, even with the longest possible spring travel, still reaches under the wheel axle on both sides; in its interior on both sides (below) a part ( 2 ) for oil damping and a part ( 3 ) for space-air-oil limitation are built in, which are connected to one another with a thin "capillary" ( 4 ) in such a way that only the two air spaces ( 5 ) and not its oil ( 6 ) are connected to one another; on the outside, on both sides, there are two plain bearings, No. ( 7 ) for the wheel axle mount and No. ( 8 ) for the brake mount ( 8 b), all four of which are firmly connected to one another with a strong connection ( 9 ); on each side there are two attached clamps, No. ( 10 ), which, as well as being used for various attachments, via 2 × (freely selectable damping) ( 10 a), also serves to limit the spring travel in both directions, and No. ( 11 ), which, as well as being used for various attachments, in conjunction with reinforcement consisting of two thin tubes attached on both sides in the radius of the standpipe ( 12 ), on the front wheel, also serves to absorb longitudinal forces; Below, just before the end of the dip tube, a lip seal ( 13 ) is arranged between the dip tube ( 1 ) and the sliding part ( 7 ) and below this is the oil container ( 14 ) with oil damping increase ( 15 ) and air valve ( 16 ). 2) Device according to claim 1 , characterized in that the supporting immersion tube ( 1 ) is not constructed from a bent blank but from two separate tubes which are then attached to the frame via suitable, generally known, parts. 3) Device according to claims 1 to 2, characterized in that the clamp ( 10 ), in the case of a front wheel fork and no luggage carrier (no further fastenings necessary), is provided from two separate, small clamps (in order to save weight), which then only serve to limit the travel in both directions.