Vehicle Door Handle Direct Lever Actuation

Solution Overview

Problem

Existing vehicle door operation devices require multiple components, such as rods, to transmit operations from the inside handle to the lever mechanisms, making it difficult to reduce the size of these devices.

Innovation Solution

The vehicle door operation device eliminates the need for transmission members by using projecting portions on the inside handle to directly abut and operate the full open and full closure unlocking levers, allowing for closing and opening operations without rods, thereby reducing the number of components and enabling size reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If transmission members such as rods are provided to connect the inside handle to the lever mechanism, then the operation transmission is reliable, but the number of components increases and device size cannot be reduced

Engineering Contradiction:

Improveoperation transmission reliabilityVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the transmission member (rod) from the system by redesigning the inside handle to directly engage with the lever mechanism through projecting portions. This extraction eliminates unnecessary components while maintaining the operational reliability through direct mechanical engagement.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the functions of the inside handle and the transmission mechanism into a single integrated structure. The inside handle itself incorporates the transmission function through its projecting portions that directly interact with the lever mechanism, eliminating the need for separate transmission members.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If transmission members such as rods are provided to connect the inside handle to the lever mechanism, then the operation transmission is reliable, but the device size increases

Engineering Contradiction:

Improveoperation transmission reliabilityVSAvoiddevice size

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent removes the transmission member (rod) from the system by redesigning the inside handle to directly engage with the lever mechanism through projecting portions. This extraction eliminates unnecessary components while maintaining the operational reliability through direct mechanical engagement.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the functions of the inside handle and the transmission mechanism into a single integrated structure. The inside handle itself incorporates the transmission function through its projecting portions that directly interact with the lever mechanism, eliminating the need for separate transmission members.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12060735B2Vehicle door operation device

Publication Date: 2024.08.13 HI-LEX ACT CORP

AI summary

A vehicle door operation device includes an inside handle, a full open unlocking lever for transmitting a closing operation of the inside handle to a full open door latch device, and a full closure unlocking lever for transmitting an opening operation of the inside handle to a full closure door latch device. The inside handle has first and projecting portions, and when the inside handle rotates in a first direction by the closing operation, the first projecting portion is brought into abutment with the full open unlocking lever to enable the full open unlocking lever to operate, whereas when the inside handle rotates in a second direction by the opening operation, the second projecting portion is brought into abutment with the full closure unlocking lever to enable the full closure unlocking lever to operate.