Vehicle Seat Anchoring Device Guide Member Engagement
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Solution Overview
Problem
The existing securing devices for removable seats in motor vehicles often result in poor handling, leading to incorrect engagement and potential safety hazards, as well as premature deterioration due to inadequate locking mechanisms.
Innovation Solution
A securing device featuring a guide member with an abutment element positioned above the front trunnion, ensuring the front notch of the flange engages correctly before allowing the rear notch to engage with the rear trunnion, preventing cantilevered rest and ensuring proper locking, thereby enhancing safety and extending the device's lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the flange is allowed to rest cantilevered on the front trunnion during engagement, then the engagement process becomes easier, but the seat may become incorrectly secured leading to safety hazards
Solution Approach 1:
The guide member acts as an intermediary element between the flange and the front trunnion. It provides a controlled engagement path through its abutment element, allowing the flange to be guided into correct position while preventing incorrect cantilevered resting. This mediator ensures that engagement occurs only through the intended mechanism.
Solution Approach 2:
The guide member enables the engagement process to be self-correcting. As the flange approaches the front trunnion, the abutment element automatically guides it into the correct position, and the spacing prevents incorrect positioning. The system self-regulates the engagement process without requiring external intervention or complex control mechanisms.
2Productivity
If the rear notch engages the rear trunnion before the front notch engages the front pin, then the locking mechanism may activate prematurely, but the seat may not be correctly positioned leading to inadequate securing
Solution Approach 1:
The guide member performs a preliminary action by guiding the front notch into correct engagement with the front pin before the rear notch can engage the rear trunnion. The abutment element and spacing arrangement ensure that the front engagement occurs first, establishing the correct positional relationship before locking takes place.
Solution Approach 2:
The engagement process is segmented into distinct sequential steps: first the front notch engages the front pin (guided by the abutment element), then the rear notch engages the rear trunnion. This segmentation ensures proper sequencing and prevents premature locking before correct positioning is achieved.
3Ease of operation
If the spacing between the abutment element and front trunnion is increased to allow easier engagement, then the flange can engage more readily, but the flange may rest cantilevered on the front trunnion causing incorrect positioning
Solution Approach 1:
The invention optimizes the spacing parameter between the abutment element and the front trunnion to a specific range. This parameter is carefully chosen to be sufficient to allow the flange to engage the front pin but insufficient to allow cantilevered resting. The precise control of this dimensional parameter resolves the contradiction between ease of engagement and positioning accuracy.
Data Source
Figure 1~3
Figure 4~9
AI summary
The invention relates to a device for securing a removable seat to a vehicle floor comprising a side member (10) having a side wall (12) bearing two front (15) and back transverse metal pivot pins, as well as a flange (20) comprising, at the front end, a first longitudinal slot (24) opening frontward and intended to engage with the front pivot pin (15), and, at the rear end, a second vertical slot opening downward and intended to engage with the rear pivot pin. The device also comprises a guiding member (30) rigidly connected to the flange (10), comprising a stop element (34) located vertically in line with the front pivot pin (15) and being arranged such that the spacing between the stop element and the front pivot pin is greater than the distance separating the front slot (24) from the upper edge of the flange (20), and such that said spacing is also less than the height of the front end of the flange (2).