Elastic Strap Holder for Smartphone Stability
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Solution Overview
Problem
Existing holding apparatuses for multimedia devices on vehicles lack sufficient stability and slip resistance, especially when encountering shocks, and often obstruct the display or functional buttons of smartphones.
Innovation Solution
A strap-shaped holding apparatus with elastically extendable loop sections featuring at least three holding strands, allowing for a star-shaped fixation of the device, which maintains position during shocks and prevents slipping, while allowing ergonomic placement and unhindered access to the display and buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple loop geometry is used to enclose the rod-shaped object, then the holding apparatus can be easily manufactured and installed, but the stability and slip resistance are insufficient during shocks
Solution Approach 1:
The loop section is divided into multiple holding strands (at least three) that are arranged radially to form a star-shaped fixation pattern. This segmentation allows each strand to independently contact and stabilize the device, preventing slipping in multiple directions while maintaining the simplicity of the overall loop structure.
Solution Approach 2:
The holding strands are arranged in a radial/star pattern around the rod-shaped object, transitioning from a simple planar loop to a three-dimensional radial configuration. This dimensional change provides stabilization in multiple directions (radially outward in all directions) rather than just a single plane, significantly improving slip resistance during shocks.
2Reliability
If the holding apparatus is positioned to secure the device firmly, then stability is improved, but the display or functional buttons may be obstructed
Solution Approach 1:
The holding strands are positioned to contact specific local areas on the device surface (such as the back housing or edges) rather than covering the entire device. This localized contact provides firm stabilization while leaving the display and button areas accessible and unobstructed.
3Strength
If rigid base parts are used for fixation, then structural strength is improved, but damping compensation and slip security are insufficient
Solution Approach 1:
The holding strands are made from elastic material that can deform and conform to the rod-shaped object and device surface. This flexibility allows the strands to maintain continuous contact and adapt to vibrations or shocks, providing slip security that rigid structures cannot achieve while still maintaining sufficient holding strength.
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 apparatus provides reliable and position-stable linking of multimedia devices to rod-shaped objects, preventing slipping and falling, and ensuring the device remains securely positioned and operational during use.
Implementation Method 1
each strap section comprises an elastically extendable loop section
Data Source
AI summary
Holding apparatus for connecting a multimedia device in an articulated and detachable manner to a rod-like object, having two belt sections together with loop sections, connected by a middle section which forms a support. The first belt section can be passed through a passage opening which is arranged in the second belt section or in the middle section, wherein the belt-like holding apparatus surrounds a space which adjoins the lower face of the middle section substantially in the form of a twisted cycloid, and the two loop sections can be moved under prestress to an assembly position which faces the support. At least one of the loop sections has in each case at least three elastically stretchable holding strands which laterally delimit at least two holding openings which are arranged next to one another in a direction which runs transverse to the longitudinal extent of the belt-like holding apparatus.