Motor Vehicle Door Handle Reducing Transverse Play
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Solution Overview
Problem
Existing actuating devices for motor vehicle doors with means to reduce transverse play are limited in their effectiveness, as the reduction of transverse play is only possible at certain locations, restricting the handle's movement and functionality.
Innovation Solution
An actuating device with a handle part that can be gripped by one hand, featuring a mechanism driven by a motor, which moves from a rest position to a standby position and then to an actuating position, incorporating projection elements with abutment surfaces that adjust their spacing to reduce transverse play, allowing for complete or partial cancellation of the reduction when transitioning between positions, thereby enabling transverse play reduction at all necessary locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a means for reducing transverse play is provided at certain locations, then transverse play is reduced at those locations, but the handle part cannot be gripped effectively and moved into the actuating position
Solution Approach 1:
The abutment surfaces are designed to change their relative spacing dynamically based on the handle part's position. In the standby position, the spacing is reduced to minimize transverse play. During movement from standby to actuating position, the spacing increases to allow sufficient play for effective grasping and operation. This dynamic adjustment resolves the contradiction between precision and operability.
2Stability of the object's composition
If the transverse play is reduced in the standby position, then the handle part is more stable, but the movement from standby to actuating position is restricted
Solution Approach 1:
The means for reducing transverse play operates periodically based on the handle part's position cycle. When the handle is in the standby position, the transverse play is reduced for stability. When the handle moves toward the actuating position, the reduction is canceled to enable full movement range. This periodic adjustment of constraints allows the system to achieve both stability and adaptability at different stages of operation.
Data Source
AI summary
An actuating device, for a motor vehicle door lock, having a handle part grippable by one hand and being movable by a mechanism from a rest position into a standby position, and being movable manually into an actuating position starting from the standby position, the actuating device configured to actuate the door lock if the handle part reaches the actuating position, the actuating device having a device for reducing a transverse play of the handle parts such that the transverse play in the standby position is reduced with respect to the transverse play in a position between the rest position and the standby position, the device for reducing the transverse play configured to completely or partially cancel again the reduction of the transverse play in the standby position if the handle part is moved from the standby position into the actuating position.