Vehicle Seat Lock Indicator Arm for Clear Lock State Visibility

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Solution Overview

Problem

The existing locking devices for vehicle seats are difficult to visually identify, especially when multiple devices are locked or unlocked, due to small size and obscure placement, making it challenging for users to confirm the locking state, which is crucial for safety during crashes.

Innovation Solution

A locking device with a display device featuring an indicator arm that changes positions to reveal both locking and unlocking indicators, with color-coded surfaces (green for locked and red for unlocked) at multiple visible locations, enhancing visibility and clarity of the locking state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the unlocking bolt is used as the indicator, then the locking state can be identified, but the indicator is small and difficult to see due to its size and location below the seat member

Engineering Contradiction:
Improvevisibility of locking stateVSAvoidstructure of indicator
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The indicator arm extends in a horizontal direction perpendicular to the unlocking bolt's movement direction, creating a new dimensional space for visualization. This allows the locking state to be displayed laterally rather than vertically, making it visible from the side without requiring the indicator to be large or positioned in difficult-to-see locations below the seat member.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The indicator arm acts as an intermediary element that translates the vertical movement of the unlocking bolt into a horizontal visual display. Instead of directly using the small unlocking bolt as the indicator, the indicator arm mediates this information, amplifying it into a larger, more visible form that can be easily perceived by the user.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple locking devices are used, then the vehicle seat can be securely locked, but it becomes difficult to perceive the locking state of all devices simultaneously

Engineering Contradiction:
Improvelocking securityVSAvoidvisibility of multiple locking states
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

Each locking device has its own indicator arm that independently displays the locking state of that specific device. This segmentation allows users to visually distinguish and monitor the status of multiple locking devices separately, rather than having a single aggregated indicator that would be confusing to interpret.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The indicator arms are arranged horizontally in different positions corresponding to each locking device, creating a spatial distribution of visual information. This dimensional arrangement allows users to scan across multiple indicators in a linear fashion, making it easy to perceive the locking state of all devices simultaneously without visual overlap or confusion.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS9440564B2Locking device for a vehicle seat, and vehicle seat
Publication Date: 2016.09.13 KEIPER SEATING MECHANISMS CO LTD
  • US9440564B2 patent drawing
  • US9440564B2 patent drawing
  • US9440564B2 patent drawing

AI summary

A locking device (10), for a vehicle seat (1), includes an indicating device (8) for indicating the locking state of the locking device (10). The indicating device (8) has a locking indicator (31, 32), which is visible when the locking device (10) is locked, and a release indicator (33, 34), which is visible when the locking device (10) is released. The indicating device (8) has at least one indicator arm (30), which is in the locking position when the locking device (10) is locked and which is in the release position when the locking device (10) is released. The indicator arm (30) includes an indicating area (39), which has a first locking indicator (31) and a first release indicator (33). A second release indicator (34), which is concealed by the indicator arm (30) when the indicator arm is in the locking position, is provided on a retaining plate (20).