Asymmetrical Strap Lumbar Support for Targeted Pressure Adjustment
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Solution Overview
Problem
Existing lumbar support belts are insufficient for intense activities and have complex position adjustment mechanisms for reinforcement straps, limiting their effectiveness and usability.
Innovation Solution
A lumbar support device with a belt and a rotatable, asymmetrical strap that can be positioned in two ways – 'high' for dorso-lumbar and 'low' for lumbosacral regions, allowing easy and quick pressure adjustment, and featuring non-permanent connecting means for easy attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reinforcing strap is added to the lumbar support belt, then the support effectiveness for intense activities is improved, but the device complexity increases
Solution Approach 1:
The lumbar support device is segmented into a base belt and a separate adjustable strap component. This segmentation allows the strap to be independently adjusted or removed based on activity intensity, providing reinforcement when needed while maintaining simplicity during moderate use.
Solution Approach 2:
The strap is designed with dynamic adjustment capabilities, allowing users to modify its position and tension based on real-time needs. The connecting means enable the strap to be attached or detached easily, transforming the device from a static to a dynamically adaptable configuration.
2Adaptability or versatility
If the reinforcing strap position is made adjustable, then the adaptability to different activity zones is improved, but the position adjustment mechanism becomes complex
Solution Approach 1:
Instead of using complex mechanical mechanisms to adjust strap position, the invention inverts the approach by using simple connecting means that allow the strap to be easily attached at different positions or removed entirely. The asymmetrical design of the strap with its specific connection points simplifies the adjustment process.
Solution Approach 2:
The adjustment mechanism is extracted from complex mechanical systems and reduced to simple connecting means that allow easy attachment and detachment. This extraction maintains position adaptability while eliminating unnecessary complexity in the adjustment mechanism.
3Ease of operation
If the connecting means allow 180° rotation of the strap, then the ease of operation for positioning is improved, but the device complexity increases
Solution Approach 1:
The strap is designed with asymmetrical characteristics, where one end has different connection properties than the other. This asymmetry, combined with the 180° rotation capability of the connecting means, allows intuitive positioning without requiring complex orientation mechanisms. The user can easily distinguish the correct orientation through the asymmetrical design.
Data Source
Figure 1~3
AI summary
The device (1) has an elastic material belt (2) with a central part (6) positioned on a lumbar region of a user and prolonged by two side parts. A strap (3) is asymmetrical relative to a transverse plan (P) passing by a center of rotation to allow the positioning of the strap in a high position of the device in which pressure of the belt and the strap are added together in a dorso-lumbar region of the user by closing the strap, and in a low position of the device in which the pressure of the belt and the strap are added together in a lumbar sacral region of the user by closing the strap. USE : Lumbar support device for supporting back of a user. ADVANTAGE : The strap is asymmetrical relative to the transverse plan passing by the center of rotation to allow the positioning of the strap in the high position in which pressure of the belt and the strap are added together in the dorso-lumbar region of the user by closing the strap so as to reinforce the pressure exerted by the belt on the dorso-lumbar region of the user, and in the low position in which the pressure of the belt and the strap are added together in the lumbar sacral region of the user by closing the strap so as to reinforce the pressure exerted by the belt on the lumbar sacral region of the user, thus allowing the user to carry out easy and quick positional adjustment of the strap, and hence realizing maintenance of the regions while providing relief to the pains in dorso-lumbar and lumbar sacral regions. The device provides support to the back of the user for various degrees of activity, and allows the user to select the zone of the back to which the user needs reinforcement. DESCRIPTION OF DRAWINGS : The drawing shows a front view of a lumbar support device in use position. P : Transverse plan 1 : Lumbar support device 2 : Elastic material belt 3 : Strap 6 : Central part of belt.