Actuated Bicycle Rack Arm for One-Handed Secure Loading
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Solution Overview
Problem
Current bicycle racks require the use of both hands to manipulate pivoting arms for securing and adjusting bicycle position, making it difficult to hold the bike while opening or closing the rack.
Innovation Solution
A bicycle rack with an actuated arm mechanism that can be operated with a single hand, featuring an actuator that automatically pivots the arm from a closed to an open position and secures the bicycle using a linear ratchet or latch mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual arm manipulation is used to secure bicycles, then the rack provides secure retention, but the user requires both hands to operate, making it difficult to hold the bicycle during loading
Solution Approach 1:
The arm is equipped with an actuator that automatically pivots the arm from closed to open position and back, eliminating the need for manual two-handed manipulation. The ratchet mechanism automatically engages to lock the arm in the open position, providing self-servicing operation that frees the user's hands to hold the bicycle.
Solution Approach 2:
A ratchet mechanism serves as an intermediary between the arm and the locking function. The ratchet engages with the arm to provide automatic retention in the open position, mediating the transition from manual manipulation to automatic securing, thereby enabling single-hand operation while maintaining secure retention.
2Ease of operation
If the arm is left in open position for bicycle loading, then easy access is provided, but wind resistance and noise increase
Solution Approach 1:
The arm automatically transitions between closed and open positions in periodic cycles - closed during normal vehicle operation to minimize wind resistance and noise, and open during loading/unloading operations. The actuator controls this periodic action, automatically returning the arm to closed position after bicycle placement.
3Ease of operation
If the arm is automatically actuated to open position, then single-hand operation is enabled, but the device complexity increases
Solution Approach 1:
The actuator and ratchet mechanism represent a cost-effective addition that provides significant operational simplification. The mechanical ratchet and pawl design uses simple, inexpensive components that reliably perform the automatic locking function without requiring complex electronic controls or expensive actuators.
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 easy loading and unloading of bicycles with a single hand, reducing the need for awkward positions and additional assistance, while providing secure retention and reducing wind resistance.
Implementation Method 1
An actuator is provided to automatically pivot the arm from a closed position to an open position
Implementation Method 2
The actuator allows the user to pivot the arm back towards the closed position to a retention position, but then retains the actuated arm in that position by means of a linear ratchet or other similar devices
Implementation Method 3
The actuator allows the user to pivot the arm back towards the closed position to a retention position, but then retains the actuated arm in that position by means of a linear ratchet or other similar devices and methods of the invention
Data Source
AI summary
A bicycle rack is described with an actuated arm that pivots to an open position in response to user activation of the actuator. The actuator is attached to the rack and the arm and exerts a force on the arm by extension to pivot the actuated arm to the open position. The actuator extends only when a release mechanism has been actuated by a user, but a user may pivot the actuated arm back to a closed position, or a position securing a bicycle, without actuating the release. The actuated arm will then be retained at a position selected by the user until the release is actuated by the user again.