Utility Vehicle Bench Seat Cushion Fixing Mechanism
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Solution Overview
Problem
Existing bench seats for utility vehicles face challenges in securely fixing the seat cushion to prevent flattering during rough road travel while maintaining ease of mounting and removal, and ensuring occupant access to the seat fixing device.
Innovation Solution
A bench seat configuration with a seat cushion that can be moved between open and normal positions via a hinge, featuring a seat fixing device positioned between adjacent seatbelt buckles, with the operating part located in a recessed area for enhanced accessibility and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seat cushion is strongly fixed to the seat frame to suppress flattering during rough road travel, then the stability and reliability of the seat cushion is improved, but the ease of operation for mounting and removal of the seat cushion deteriorates
Solution Approach 1:
The seat fixing device employs a dynamic locking mechanism that can transition between locked and unlocked states. The locking member engages with the locking groove to firmly fix the seat cushion during normal operation, but can be easily disengaged by operating the operating member, enabling simple mounting and removal when needed.
2Ease of operation
If the operating part of the seat fixing device is disposed below the seat cushion to ensure accessibility, then the ease of operation is improved, but the area where occupants can be seated deteriorates
Solution Approach 1:
The operating member is positioned in the lateral direction between adjacent seatbelt buckles rather than below the seat cushion. This lateral positioning utilizes the width dimension of the seat structure, allowing the operating part to be easily accessible from the side while preserving the vertical seating area underneath the seat cushion.
3Ease of operation
If the operating part of the seat fixing device is disposed above the seat cushion to ensure accessibility, then the ease of operation is improved, but the area where occupants can be seated deteriorates
Solution Approach 1:
The operating member is positioned laterally between seatbelt buckles rather than above the seat cushion. This lateral placement in the horizontal dimension provides easy access for occupants while maintaining the vertical space required for comfortable seating.
4Area of stationary object
If the seat fixing device is disposed in a compact manner between adjacent seatbelt buckles, then the seating area is improved, but the accessibility to the operating part may deteriorate
Solution Approach 1:
The operating member is designed with localized ergonomic features including a grip portion with increased surface area and improved texture. This local enhancement of operational qualities makes the compactly positioned operating member easily accessible and operable despite its constrained location between seatbelt buckles.
Data Source
AI summary
A bench seat for a utility vehicle includes a seat cushion configured to be movable between an open position where a rear portion is lifted by way of a hinge portion mounted on a front end so that the occupant is allowed to access a space disposed below the seat cushion and a normal position where the rear portion is not lifted; a plurality of seatbelt buckles disposed behind the seat cushion, the plurality of seatbelt buckles being provided corresponding to the plurality of occupants, at least two seatbelt buckles among the plurality of seatbelt buckles being disposed close to each other in the lateral direction; and a seat fixing device disposed between said two seatbelt buckles disposed close to each other, the seat fixing device being configured to lock the seat cushion positioned at the normal position to a chassis.