What has been standard in elevator or supermarket doors for a while is now conquering the automotive sector. The trunk lid opens at the push of a button or by remote key.

Starting with this year’s Automechanika, Stabilus will be offering Powerise systems on the open spare parts market, so that motor vehicle users can use an independent repair shop of their choice to have vehicles with automatic trunk lids repaired after an accident.

Spindle drives from Stabilus represent the ideal basis for a modular design and platform strategy. The number of common parts runs high, thus opening up the possibility for multiple uses for spindle drives. Consequently, the use of Stabilus spindle drives saves costs and significantly contributes to optimized efficiency.

Spindle drive technology has been tested in various applications, although the specific spindle drive design for tailgates is completely new. Due to the additional integrated spring the spindle drive becomes a complete system for overall function, including comfortable manual operation. In addition to that, optimized spindle pitches and surfaces guarantee an almost silent motion when the trunk opens and closes.

Stabilus is growing in the area of lid motors; it is expanding its market share; and is continuing to fulfill its mission:

Stabilus technology gives comfort.

STAB-O-SHOC HD24/HD29 is a hydraulic vibration damper for high loads.

Stabilus also provides a wide range of special forms, for example for force transmission without a return stroke in any direction of movement. The characteristic curve can be adapted individually at the factory. Different piston variations allow decreasing, progressive, or almost linear curves. Pressure-loaded and length-controlled variations are also possible.

Areas of application are, among others, seat dampers and motion dampers with high force requirements for especially heavy flaps.
One special design is the overrunning brake damper in automotive design.
 

• Damping forces up to 39000 N in tension and compression direction
• Damping forces in tension and compression direction can be set independent of each other by the factory
• Non-pressurised, no push-out force
• Return stroke, delayed damping
• Position-dependent mounting, with piston rod down or up

The force required to operate a lid is also affected by the ambient temperature.

In a strut, the Stabilus gas spring is combined with a mechanical spring, which can be located on the inside or outside. This combines the advantages of the gas spring (speed control, end position damping) with those of the mechanical spring (little temperature dependency).

The effect of temperature on the extension force is reduced considerably, since the load is distributed between the gas spring and the mechanical coil spring.

This allows reducing the closing forces at high temperatures without increasing the opening force in cold temperatures (-30 °C).

Advantages

• User-friendly handling of heavy lids
• Speed distribution and end damping
• Easy mounting
• Compact installation size (especially if the spring is on the inside)
• Hidden installation under roof or in the rain water duct (spring covered)

Applications

• Tailgate
• Trunk lids
• Gull-wing doors

The LIFT-O-MAT from Stabilus is available in two standard versions:

With dynamic extension damping, this gas spring can open doors and lids in any mounting orientation up to a specified position, where it will gently stop the motion. This reduces wear and tear on the joints and hinges and prevents collisions with the garage ceiling or wall.

With dynamic compression damping, the LIFT-O-MAT is suited primarily for engine hoods where the hood is to be dampened gently when it is closed, reducing wear on the material.

Function

With a special longitudinal groove inside the pressure tube, the damping properties can be optimized to the application. Differing compression and extension characteristics can be realized, as well as dampened approaches to intermediate positions.
By increasing or reducing the groove cross section, the speed of motion over the entire stroke can be adjusted as desired. The motion can be slowed down until it almost comes to a stop.

Advantages

• Orientation-independent function
• Defined speed control
• Damping characteristics can be adjusted
• Dampened approach of intermediate positions possible

 Applications

• Tailgate, trunk, hood, seat adjustment

For the smallest installation lengths

The TA20 damper is a high-performance, non-pressure, hydraulic vibration damper. It is not orientation-specific, meaning that force transmission without a return stroke is possible in any installation position.  This special construction allows for the shortest installation lengths. TA dampers are available in different dimensions, even for high loads.
The damper characteristic curve can be adapted to the respective application at the factory.

Specific areas of application in utility vehicles are steering dampers in trailing axles, engine pitching damper, vibration damping in farming equipment

• Damping forces up to 3000 N in tension and compression direction
• Damping forces in tension and compression direction can be set in dependent of each other by the factory
• Non-pressurised, no push-out force
• No return stroke, direct instant damping
• Mounting in any orientation