Moving Triceps Press Support Frame for Lower Back Stability
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Solution Overview
Problem
Traditional triceps press exercise machines cause users to arch their lower back excessively, leading to decreased exercise efficiency and potential injury due to the lack of ergonomic support during the exercise motion.
Innovation Solution
A triceps press exercise machine with a moving user support frame that tilts as the user extends their arms, encouraging the user to maintain a more ergonomic position by reclining the torso and stabilizing the lower back, thereby reducing the inclination to arch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stationary platform or frame is used to support the user, then the structure is simple and stable, but the user arches his or her lower back excessively leading to injury risk
Solution Approach 1:
The patent applies the dynamics principle by transforming the stationary user support frame into a moving support that tilts during exercise. The support frame is connected via linkage assemblies that allow it to recline progressively backward as the user extends their arms, dynamically adapting to the exercise motion and maintaining ergonomic alignment throughout the range of motion.
Solution Approach 2:
The patent implements preliminary anti-action by designing the moving support frame to counteract the user's natural tendency to arch the lower back before the arching occurs. The linkage assembly proactively adjusts the support angle during the pressing motion, preventing excessive lumbar extension and maintaining proper spinal alignment throughout the exercise.
2Productivity
If the user support frame is stationary, then the exercise machine is easier to operate, but exercise efficiency decreases due to excessive back arching
Solution Approach 1:
The moving user support frame dynamically reclines during the pressing exercise, maintaining ergonomic alignment and reducing lower back arching. This dynamic adjustment improves exercise efficiency by keeping the user in a mechanically advantageous position throughout the motion, while the automated linkage mechanism eliminates the need for manual intervention.
Solution Approach 2:
The linkage assembly automatically adjusts the support frame angle in response to user movement, with the rear portion of the linkage moving in the same direction as the exercise arm. This self-adjusting mechanism improves exercise efficiency without requiring additional user effort or complex control systems.
3Object-affected harmful factors
If the user support frame moves to maintain ergonomic position, then lower back injury risk is reduced, but the device structure becomes more complex
Solution Approach 1:
The patent uses a moving user support frame connected through linkage assemblies that allow controlled tilting motion. The support frame reclines progressively backward as the exercise arm moves, maintaining ergonomic alignment and reducing lower back strain throughout the exercise range of motion.
Solution Approach 2:
The linkage assembly serves as an intermediary mechanism between the stationary main frame and the moving user support. It translates the user's arm movement into corresponding support frame recline, mediating the interaction between user action and ergonomic positioning while protecting against lower back strain.
Data Source
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AI summary
An exercise machine for performing triceps press exercises, including a moving user support that supports the user in a seated position. The exercise machine includes a linkage assembly that allows the user support to tilt as the user performs a triceps press exercise. As the user extends his or her arms from the exercise starting position to the exercise ending position, the user support frame— and thus the user's torso— reclines progressively backwards. The user's natural reaction to this reclining sensation is to bring his or her head forward, which encourages the user to plant his or her lower back firmly into a stable position against the back pad and in turn reduces the risk of injury associated with excessively arching of the lower back.