Self-Spotting Bench Press Foot Pedal Cable Mechanism
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Solution Overview
Problem
Traditional bench press exercises require a spotter to safely lift heavy weights back onto the bench, limiting solo workouts and safety when lifting heavy weights.
Innovation Solution
A self-spotting bench press mechanism using a cabled pulley system with a foot pedal, where the user can push the pedal to reduce the weight's upper body load, assisted by a cable and pulley system that helps lift the weight bar back onto the bench without manual assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spotter is used to assist lifting weights back onto the bench, then safety is improved, but workout flexibility and solo training capability deteriorate
Solution Approach 1:
The system enables the user to spot themselves by using the foot pedal to activate the cable mechanism, which then assists in lifting the barbell back onto the bench. This self-service approach eliminates the need for a spotter while maintaining safety, allowing solo workouts with heavy weights.
Solution Approach 2:
A cable system with pulleys acts as an intermediary between the user's foot pedal input and the barbell. The cable mechanism transfers and amplifies the user's leg force to assist in lifting the heavy weights, providing a mechanical mediation that ensures safety without requiring another person.
2Productivity
If heavy weights are lifted to failure, then workout intensity and effectiveness are improved, but safety risk increases due to inability to lift weights back
Solution Approach 1:
The foot pedal mechanism allows the user to independently activate the assistance system when needed, enabling them to push themselves to failure while maintaining the capability to safely return the weights. The system responds to user input rather than requiring external assistance.
Solution Approach 2:
The cable system is pre-configured and ready to assist before the user reaches failure. The mechanism is in place and tensioned, so when the user activates it via the foot pedal during or after failure, immediate assistance is available to return the weights safely.
3Object-affected harmful factors
If a spotter is required for safety, then injury prevention is improved, but device complexity and operational requirements worsen
Solution Approach 1:
The cable and pulley system serves as a mechanical intermediary that provides spotter-like protection without requiring a human spotter. The system automatically responds to user input through the foot pedal, reducing operational complexity compared to coordinating with another person.
Solution Approach 2:
The human spotter's mechanical action of lifting the barbell is replaced by a cable-pulley-mechanical system that performs the same function. This substitution eliminates the need for human coordination and reduces operational complexity while maintaining injury prevention capabilities.
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 safe and solo bench press workouts by reducing the weight's upper body load and assisting in lifting the weight bar back onto the bench, enhancing user safety and workout flexibility without the need for a spotter.
Implementation Method 1
a cabled system of pulleys... The user pushes the foot pedal forward during the exercise and the motion reduces the weight put on the user's upper body from the weight
Implementation Method 2
A self-spotting bench press mechanism and system is provided that includes... a plurality of pulleys, with at least one pully attached to the extension support arm and one to the upright support, the cable supported on the pulleys
Implementation Method 3
a tensioning mechanism to keep tension on the cable as the end of the cable configured to be connected to a barbell moves vertically up and down
Implementation Method 4
a foot pedal hingeably connected to the bottom frame support... The foot pedal can be attached to a swing arm, and the cable can also be attached to the swing arm. The swing arm can be hingeably connected to the bottom support frame
Data Source
AI summary
A system and mechanism for a self-spotting bench press, and in particular, to a mechanism wherein a user that is bench pressing free weights can utilize to assist in lifting weights back on the bench's weight stand, without the aid of a spotter.