Holding Device Roller Mechanism Eliminates Disturbing Tensile Forces
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Solution Overview
Problem
Existing portable equipment holding devices often subject equipment to disturbing tensile forces when in use, limiting usability and range of movement.
Innovation Solution
A holding device with a bistable locking mechanism and a roller element system that allows the tie to be rolled up or unrolled based on applied forces, ensuring the equipment is securely stored or easily accessible without interference from tensile forces, featuring a cylinder, piston, and spring element for efficient locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cord with return effect components is used to attach equipment to the holding device, then the equipment cannot be lost and is automatically rolled up, but the cord exerts disturbing tensile forces on the equipment during use
Solution Approach 1:
The patent extracts the return effect components from the cord itself and relocates them to a separate housing unit. The cord becomes a simple passive element that can be pulled freely, while the active return mechanism resides in the holding device housing, eliminating the harmful tensile forces during equipment use.
Solution Approach 2:
The patent introduces a housing as an intermediary element between the cord and the return effect components. This housing contains the spring mechanism and provides a controlled environment for the return force, mediating the interaction between the cord and the equipment to eliminate disturbing forces.
2Ease of operation
If the tie is completely unrolled for equipment use, then the equipment has full range of movement, but the equipment is no longer securely stored
Solution Approach 1:
The patent implements a dynamic locking mechanism that automatically transitions between locked and unlocked states based on the cord's position. When the cord is unrolled for use, the locking element disengages, providing full equipment mobility. When the cord is rolled up, the locking element engages, securing the equipment automatically.
Solution Approach 2:
The patent changes the state parameter of the locking mechanism based on the cord extension state. The locking element's position and engagement status are dynamically adjusted according to whether the cord is extended or retracted, automatically switching between secure storage and free usage modes.
3Object-affected harmful factors
If a locking mechanism is added to eliminate disturbing forces, then equipment can be used without interference, but the device complexity increases
Solution Approach 1:
The patent designs a self-service locking mechanism that automatically engages and disengages based on the cord's position without requiring external control or complex actuation. The locking element responds passively to the cord extension state, eliminating the need for additional sensors, motors, or control systems.
Solution Approach 2:
The patent replaces complex electronic or motorized locking systems with a simple mechanical solution. The locking element uses basic mechanical principles of engagement and disengagement based on cord tension and position, achieving the locking function with minimal mechanical components.
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
Enables the use of portable equipment like cameras without disturbing forces, providing a wide range of movement and secure storage, with a compact and cost-effective design suitable for various sizes and types of equipment.
Implementation Method 1
a spring element which acts on the piston with an elastic force
Implementation Method 2
the roller element is arranged on the housing and is rotatably mounted in relation to the housing
Data Source
AI summary
A holding device for cameras or other portable equipment includes a housing in which a roller element and a return element are arranged. The roller element is rotatably mounted in relation to the housing. A tie for fastening equipment items is completely rolled up on the roller element in an initial state, with only one end thereof protruding from the housing. The return element exerts a tensile force on the roller element so that the tie can be rolled up on the roller element. The tie is unrolled and pulled out of the housing when an external tensile force larger than the tensile force of the return element is exerted on the tie. The tie is rolled up to the initial state into the housing when an external tensile force smaller than the tensile force of the return element is exerted on the tie.