Vehicle Seat Stabilization via Strap Support
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Solution Overview
Problem
Existing vehicle seat devices require dedicated support members on the back face of the seat cushion, increasing the number of parts and costs, while also leading to potential destabilization of the seat in the stowed state due to gaps between the seat cushion and the floor.
Innovation Solution
A vehicle seat device configuration featuring a support leg pivotally coupled to both the floor and seat cushion, with an attitude control strap between the floor and seat cushion to restrict inclination, and a strap attaching member to support the rear part of the seat cushion in the stowed state, eliminating the need for dedicated rear support members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If dedicated support members are provided on the back face of the seat cushion respectively in the front part and rear part, then the seat stability in stowed state is improved, but the number of parts increases and cost increases
Solution Approach 1:
The patent combines the support function into the existing attitude control strap system. The strap attaching member is integrated with the floor structure, and the attitude control strap itself serves dual purposes: controlling seat attitude during movement and supporting the seat cushion in the stowed state. This eliminates the need for separate dedicated support members while maintaining stability.
Solution Approach 2:
The attitude control strap and its attaching members are designed to perform multiple functions: (1) control the attitude of the seat during movement between service and stowed states, (2) support the rear part of the seat cushion in the stowed state, and (3) provide structural connection between the floor and seat. This multi-functionality reduces the total number of components required.
2Stability of the object's composition
If dedicated support members are provided on the back face of the seat cushion, then the seat stability in stowed state is improved, but the manufacturing cost increases
Solution Approach 1:
The support function is merged into the existing attitude control strap system. The strap attaching member is integrated with the floor structure, and the attitude control strap itself serves dual purposes: controlling seat attitude during movement and supporting the seat cushion in the stowed state. This eliminates the need for separate dedicated support members while maintaining stability.
Solution Approach 2:
The attitude control strap and its attaching members are designed to perform multiple functions: (1) control the attitude of the seat during movement between service and stowed states, (2) support the rear part of the seat cushion in the stowed state, and (3) provide structural connection between the floor and seat. This multi-functionality reduces the total number of components required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces the number of parts and costs by stabilizing the seat in the stowed state, ensuring the rear part of the seat cushion is supported without additional dedicated support members, enhancing the vehicle seat device's efficiency and cost-effectiveness.
Implementation Method 1
a support leg (16) having one end pivotally coupled to the floor part and the other end pivotally coupled to the seat cushion
Implementation Method 2
kept raised in the service state, meanwhile swung forward and kept laid down in the stowed state
Implementation Method 3
an attitude control strap (30) which is stretched between the floor part side and a rear end of the seat cushion, and restricts inclination of the seat when the seat is moved
Implementation Method 4
the strap attaching member being configured to support a rear part of the seat cushion in the stowed state
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is a vehicle seat device having a simply configuration and a reduced number of parts and advantageous in reducing cost. A rear seat (10) is configured so as to be capable of moving to: a use state (A) in which a seat cushion (12) is disposed on a deck section (20) located higher than a floar section (18) and in which the seatback (14) is raised to enable a vehicle occupant to sit thereon; and a stowed state (B) in which the seatback (14) is folded over the seat cushion (12) and stowed on the floor section (18) in front of the deck section (20). A position control strap (30) is provided straddling both a strap mounting metallic fitting (24) and a mounting metallic fitting (26). In the stowed state (B), the strap mounting metallic fitting (24) and a contact metallic fitting (28) are in contact with each other, and a pipe frame (1206) at the rear end of the seat cushion (12) in the stowed state (B) is supported.