Multi-Direction Turn Signal Switch for Instant Hazard Activation
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Solution Overview
Problem
Existing turn signal switch devices face challenges in accommodating a hazard switch due to downsizing and weight-saving requirements, leading to delayed execution of the hazard function and increased risk of erroneous operations.
Innovation Solution
A turn signal switch device with an operation knob that can be swing-operated, push-operated, and rising-operated, allowing immediate execution of functions like hazard mode without multiple pushes, and featuring an auto-return mechanism to prevent erroneous operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hazard switch is newly installed into the switch housing, then the hazard function can be executed, but the switch housing becomes too large and heavy
Solution Approach 1:
The operation knob is designed to perform multiple functions: swing operation for turn signal blinking, push operation for canceling blink, and holding operation for hazard function activation. This multi-functionality eliminates the need for a separate hazard switch, reducing switch housing size and weight while maintaining all required functions
2Device complexity
If multiple push operations or continual push operation is set for hazard function, then the hazard switch can be integrated, but the execution is delayed and erroneous operations occur
Solution Approach 1:
The operation knob transitions from static push/cancel operations to dynamic holding operation. The hazard function is activated when the knob is held in a specific angular position range (e.g., ±45 degrees from neutral), providing immediate response without requiring multiple pushes or continuous pushing over time, thus eliminating execution delay
3Adaptability or versatility
If push operation is used for both hazard function and turn signal cancel, then the hazard function can be executed, but erroneous operations easily occur
Solution Approach 1:
Different operational modes are assigned to different angular positions of the operation knob. The neutral position (0 degrees) cancels turn signal blink, while holding at specific angular positions (e.g., ±45 degrees or more from neutral) activates hazard function. This spatial differentiation of functions eliminates ambiguity and prevents erroneous operations
Data Source
AI summary
A turn signal switch device that can immediately execute a function different from blinking of a turn signal, and prevent an erroneous operation. The turn signal switch device includes an operation knob configured to be swing-operable along an extending direction of a handlebar, and operable in a direction vertical to the swing direction and extending toward an upper side of a vehicle, in which, if the operation knob is operated in the rising direction, the turn signal executes a lighting mode different from blinking of the turn signal that is performed by the swing operation, and after the operation knob is operated in the swing direction, tor the rising direction, the operation knob returns to a neutral position at which the operation knob is held at a non-operated timing of the operation knob.