Exercise Assistance Holder with Rotating Gripper for Independent Donning
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Solution Overview
Problem
People with physical disabilities face difficulty in putting on exercise assistance devices independently, necessitating a holder that can securely hold and facilitate easy donning of such devices.
Innovation Solution
A holder for exercise assistance devices featuring a main rod, sliding rod, gripper, and controller that allows for secure attachment and controlled operation of the device, including a gripper arm that covers the front surface to prevent falling and a gravity compensation mechanism for ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a holder with gripper mechanism is used to hold the exercise assistance device, then the device can be securely held and attached independently, but the structure becomes more complex
Solution Approach 1:
The holder is divided into functionally independent modules: a support unit for holding the exercise assistance device, a gripper unit with rotatable base and covering arm, and a control unit. Each module performs a specific function, allowing the system to achieve complex independent attachment capability while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The gripper base is designed to rotate relative to the support unit, and the covering arm can move to cover the front surface of the exercise assistance device. These dynamic movements allow the holder to adapt its configuration during the attachment process, enabling independent operation while using controlled motion rather than fixed complex structures.
2Reliability
If the gripper arm covers the front surface of the exercise assistance device, then the risk of device detachment is reduced, but the device complexity increases
Solution Approach 1:
The covering arm is positioned to cover the front surface of the exercise assistance device before attachment is complete, acting as a protective barrier that prevents accidental detachment. This preliminary protective action secures the device in place during the attachment process, enhancing reliability without requiring complex locking mechanisms.
Solution Approach 2:
The covering arm serves as an intermediary element between the gripper base and the exercise assistance device. It provides an additional layer of security and control during the attachment process, mediating the interaction between the holder and the device to prevent detachment while maintaining a relatively simple structural design.
3Ease of operation
If a gravity compensation mechanism is added to the holder, then ease of use is improved for users with physical disabilities, but the device complexity increases
Solution Approach 1:
A gravity compensation spring is introduced to counteract the gravitational force acting on the moving parts of the holder, particularly the gripper base and covering arm. This allows users with physical disabilities to operate the holder with minimal effort, as the spring automatically compensates for the weight of the components, enhancing ease of use while adding only a single spring element to the system.
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 independent and secure attachment of exercise assistance devices, reducing the risk of device detachment and facilitating easy donning and use by individuals with physical disabilities.
Implementation Method 1
a gravity compensation part provided inside the main rod and slidable along the main rod while supporting the sliding rod, and a gravity compensation spring having an upper end fixed to the main rod and a lower end fixed to the gravity compensation part
Implementation Method 2
a gravity compensation spring having an upper end fixed to the main rod and a lower end fixed to the gravity compensation part
Implementation Method 3
a gripper spring having one end fixed to the sliding rod and another end fixed to the gripper base and configured to provide a restoring force to the gripper base
Implementation Method 4
The gripper spring may be a torsion spring
Data Source
AI summary
A holder for a wearable device such as an exercise assistance device where the holder may include: a main rod; a sliding rod capable of sliding with respect to the main rod; a gripper including a gripper base, which is connected to the sliding rod and can support an exercise assistance device, a gripper head, which is connected to the upper side of the gripper base and can face the rear surface of the exercise assistance device, and a gripper arm rotatably connected to the gripper head; and a control unit for controlling the operation of the gripper, wherein the gripper base rotates with respect to the sliding rod and tilts forward if the exercise assistance device is put on the gripper base, and the control unit can move the gripper arm so that at least a portion of the gripper arm can cover the front surface of the exercise assistance device.