Triathlon Shoe with Pivotable Heel Counter for Rapid Entry
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Solution Overview
Problem
Conventional triathlon transition phase T2 is inefficient and risky due to the need for athletes to bend, kneel, or sit to secure running shoes, leading to time loss and muscle cramping, as existing designs do not effectively address the challenges of hands-free and rapid shoe entry.
Innovation Solution
A running shoe with a reclining and pivotable heel design and Velcro-like straps allows for hands-free entry and secure fastening, converting the traditional three-step process into a two-step process, enabling simultaneous bike racking and helmet removal with foot actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional running shoes with laces or buckles are used, then the shoe provides secure fastening, but the athlete must bend, kneel, or sit to secure the shoe, increasing transition time and risking muscle cramping
Solution Approach 1:
The heel counter is pre-positioned in a reclined and pivotable configuration that automatically engages with the foot upon insertion. The Velcro-like strap is pre-attached to the heel counter, ready to secure the foot without requiring the athlete to bend or kneel. This preliminary arrangement of components enables rapid hands-free shoe securing, converting a multi-step manual process into a simple insertion and automatic fastening action.
Solution Approach 2:
The shoe closure system is designed to fasten itself without requiring the athlete's hands. The pivotable heel counter with Velcro-like strap automatically engages and secures the foot through the athlete's natural movement into the shoe. This self-service mechanism eliminates the need for manual lacing or buckling, significantly reducing transition time while maintaining secure fastening.
2Reliability
If the athlete bends to secure running shoes, then the shoe can be properly fastened, but muscle cramping occurs in the calves, quadriceps, hamstrings or back
Solution Approach 1:
The self-fastening heel counter with Velcro-like strap eliminates the need for the athlete to bend or kneel to secure the shoe. The automatic engagement mechanism performs the fastening action through the athlete's natural foot insertion movement, completely avoiding the harmful bending motion that causes muscle cramping in the calves, quadriceps, hamstrings, or back.
Solution Approach 2:
The heel counter is pre-configured in a reclined position that automatically engages with the foot upon insertion. This preliminary positioning ensures that the fastening mechanism is ready to secure the shoe without requiring the athlete to perform the harmful bending action, thereby preventing muscle cramping while maintaining secure fastening.
3Reliability
If hands are used to secure running shoes, then proper fastening is achieved, but transition time increases due to the complexity of the process
Solution Approach 1:
The self-fastening mechanism eliminates the need for the athlete to use hands to secure the running shoes. The pivotable heel counter with Velcro-like strap automatically engages and fastens the shoe through the athlete's natural foot insertion movement, transforming a complex hands-operated process into a simple automatic action that significantly increases transition speed.
Solution Approach 2:
The heel counter and Velcro-like strap are pre-positioned and configured to automatically engage with the foot upon insertion. This preliminary arrangement eliminates the need for hands to manipulate laces or buckles, allowing the athlete to simply insert their foot and triggering the automatic fastening sequence, thereby maximizing transition speed while maintaining secure fastening.
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
This design significantly reduces transition time by eliminating the need for hand contact and bending, saving critical seconds to minutes in total competition time while minimizing the risk of muscle cramping.
Implementation Method 1
The running shoe includes a Velcro-like strap that fastens to the heel counter
Data Source
AI summary
A running shoe design focused on the heel section of running shoes used in, for example, T2 transition phase of the sport of triathlon. A heel counter portion of the shoe is a retractable flap. The flap retracts to an open position at a 45 to 90 degree angle awaiting the unhindered insertion of the runner's foot without any need for the runner to bend or sit. Immediately after the foot is inserted, the flap is closed with a pressing forward action by the athlete's other foot. The flap and the sides of the shoe are coated with adhesive, velcro-like materials. A variation of the foregoing uses a heel counter cut from the center top to the midsole area at the bottom, resulting in an acceptable size opening for uninhibited foot insertion when the flap (or strap) portion of the heel counter is set in the open position.