Rowing Machine Second Pull Handle Movable Pulley System
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Solution Overview
Problem
Conventional rowing machines only allow for a single form of exercise, limiting the variety of workouts that can be performed.
Innovation Solution
The rowing machine is enhanced with a second pull handle and a movable pulley system, allowing exercisers to perform additional exercises by pulling the second handle, which can be arranged perpendicular to the slide rail, enabling comprehensive exercises beyond the traditional rowing motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional rowing machine structure is used, then the device is simple and easy to operate, but the form of exercise is single and limited
Solution Approach 1:
The patent applies multi-functionality by adding a second pull handle and movable pulley system to the traditional rowing machine, enabling it to perform both traditional rowing exercises and new upper body pulling exercises. The resistance mechanism serves dual purposes: providing resistance for leg-driven rowing motion and for arm-driven pulling motion, transforming a single-function device into a multi-functional exercise machine.
Solution Approach 2:
The patent introduces another dimension of exercise by arranging the second pull handle perpendicular to the slide rail direction, creating a new spatial dimension for exercise motion. This allows exercisers to pull in a direction perpendicular to the traditional rowing motion, engaging different muscle groups and providing comprehensive full-body exercise capability.
2Adaptability or versatility
If a second pull handle and movable pulley system are added, then the form of exercise is increased, but the device complexity increases
Solution Approach 1:
The resistance mechanism is designed to serve multiple functions: it provides resistance for both the traditional rowing motion (first pull handle) and the new upper body pulling motion (second pull handle). The movable pulley block system efficiently transmits resistance force in both exercise modes, eliminating the need for separate resistance systems and minimizing overall device complexity.
Solution Approach 2:
The movable pulley block acts as an intermediary element that connects the resistance mechanism to both pull handles. It efficiently transmits and redirects forces, allowing a single resistance mechanism to serve dual purposes. The pulley system mediates between the resistance source and the two different exercise motions, simplifying the overall structure compared to using separate resistance mechanisms.
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 increases the variety of exercises that can be performed on the rowing machine, allowing for both upper body and lower limb exercises, enhancing the overall training experience and functionality.
Implementation Method 1
a flexible winding mechanism connected to one end of the first flexible guiding cable
Implementation Method 2
the resistance mechanism includes a first flexible guiding cable and a flexible winding mechanism connected to one end of the first flexible guiding cable, and another end of the first flexible guiding cable is connected to the first pull handle
Data Source
Figure 1~3
Figure 4
AI summary
A rowing machine, comprising a sliding rail (5), a cushion (4), a rack (1), footrests (10), a first pulling handle (3), a second pulling handle (12), and a resistance mechanism (2) connected to the first pulling handle (3); one end of the sliding rail (5) is connected to the rack (1); the cushion (4) is slidably connected to the sliding rail (5); a supporting base is disposed at the end, opposite to the rack (1), of the sliding rail (5); and the second pulling handle (12) is located on the supporting base. When using the rowing machine to do a rowing training, the exerciser sits on the cushion (4) with feet stepping on the footrests (10), and uses hands to pull the first pulling handle (3) to do exercise; and the exerciser can also pull the second pulling handle (12) to do a comprehensive exercise.