Vehicle Safety Seat with Vertical Strap Loops for Lateral Freedom
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing safety seats for vehicles restrict occupant movement laterally, particularly when multiple seats are arranged side by side, as occupants can only rise forward and may slide sideways when exiting, posing a safety concern during exit and egress.
Innovation Solution
A safety seat design featuring a seat part frame and backrest frame connected at an angle, with retaining straps forming a belt loop system that clamps onto vehicle-fixed anchorages, eliminating the need for lateral supports and allowing adjustable height fixation, using a safety belt for additional suspension to prevent unintended displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If lateral support straps are used to secure the seat part to vertical retaining straps, then the seat part is firmly held in position, but the straps enclose the side of the passenger and restrict lateral movement
Solution Approach 1:
The harmful lateral support straps that enclose the passenger are completely removed from the system. Instead, the invention uses vertical retaining straps that pass through openings in the seat part frame, providing secure positioning without lateral enclosure of the occupant.
Solution Approach 2:
The retaining system is segmented into vertical retaining straps that pass through separate openings in the seat part frame, allowing independent adjustment and securing without requiring continuous lateral straps around the passenger.
2Reliability
If additional lateral support straps are installed to secure the seat part, then the securing reliability is improved, but the device complexity increases
Solution Approach 1:
The complex lateral support strap system with multiple fastening points is extracted and replaced by a simpler vertical retaining strap system that passes through openings in the seat part frame, reducing the number of components while maintaining or improving securing reliability.
Solution Approach 2:
The vertical retaining straps serve multiple functions: they provide the primary securing mechanism, allow for height adjustment, and eliminate the need for separate lateral support straps, thereby simplifying the overall device.
3Stability of the object's composition
If the seat part is secured with lateral support straps forming a belt structure, then the seat part is firmly held, but adjustment of installation height becomes difficult
Solution Approach 1:
The retaining system is made dynamically adjustable by allowing the vertical retaining straps to be repositioned along the vertical axis and by providing multiple opening positions in the seat part frame, enabling easy height adjustment while maintaining secure holding stability.
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
The design provides secure fixation without lateral supports, absorbs vertical impacts effectively, and allows for easy retrofitting with minimal components, maintaining high rigidity and load-bearing capacity while minimizing weight and construction volume.
Implementation Method 1
the front belt and rear belt are each guided alternately over the upper cross strut and the lower cross strut of the backrest frame... when the belt loop is tensioned, and that the front belt and rear belt clamp the cross struts between them
Implementation Method 2
impacts acting in the vertical direction, i.e., in the 'Z' direction of a vehicle, for example, caused by mine explosions, are absorbed by the tether loops as well as the safety belts. Overall, an increase in the vertical forces acting on the safety seat therefore only results in a very slight vertical change in the position of the safety seat, with the damping of the acting vertical forces being provided by the stretch properties of the belts used
Data Source
AI summary
A safety seat for land, air and water vehicles, comprising at last one seat part that is attached to two vertical retaining straps that are fixed on the vehicle side and extend in the region of the rear seat part edge, is characterized in that the safety seat (10) comprises a seat part frame (12) forming the seat part (11) and a backrest frame (14) connected thereto and disposed at an angle thereto and forming a backrest (13). Each retaining strap (17) is designed as a strap loop (18) having a front strap (20) facing the safety seat (10), the loop being arranged between anchorings (19) fixed to the vehicle at a vertical distance from each other, and a rear strap (21) extending at a distance from the front strap, wherein front strap (20) and rear strap (21) are each guided alternately over the upper cross-member (15) and the lower cross-member (16) of the backrest frame (14) arranged in the region of the seat part frame (12) in such a way that the front strap (20) and the rear strap (21) clamp the cross-members (15, 16) between them when the strap loop (18) is tensioned and that the backrest frame (14) is suspended on at least one harness (24) attached to an anchoring (23) fixed on the vehicle side and arranged vertically above the safety seat (10).