Vertical pulldown machine
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Solution Overview
Problem
Conventional pulldown machines have inefficiencies due to a grip unit that curves during exercise, reducing effectiveness, and there is a need for equipment that allows various exercises without occupying large space, accommodating different body sizes, and enabling targeted muscle engagement.
Innovation Solution
A vertical pulldown machine with a rotating grip unit that moves in a straight line above the user's head, adjustable handle angles, seat height, knee support, and chest support units, allowing one or two-arm exercises and accommodating diverse user sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the grip unit is fixed in position, then the structure is simple, but exercise effectiveness is reduced due to curved grip path
Solution Approach 1:
The grip unit is designed to rotate along a straight line path above the user's head, transforming from a fixed static structure to a dynamic rotating mechanism. This rotation ensures the grip unit moves in a straight line rather than following a curved path, improving exercise effectiveness by maintaining proper form and muscle engagement throughout the motion range.
2Adaptability or versatility
If the machine is designed for specific body sizes, then the structure is simplified, but adaptability to various users is reduced
Solution Approach 1:
The seat unit incorporates a height adjustment mechanism that allows vertical movement to accommodate different user body sizes. The knee support unit includes an angle adjustment mechanism that enables dynamic reconfiguration. These adjustable features allow the machine to adapt to various users while maintaining a relatively compact base structure.
Solution Approach 2:
The machine allows modification of key geometric parameters including seat height, knee support angle, and grip unit rotation path. By changing these parameters, the equipment can be customized for different user body dimensions and exercise requirements, enhancing versatility without requiring complete redesign for each user type.
3Adaptability or versatility
If multiple exercise functions are integrated, then versatility is improved, but device complexity increases
Solution Approach 1:
The machine integrates multiple exercise functions including one-arm pulldown, two-arm pulldown, and various grip variations within a single compact frame. The rotating grip unit and adjustable components enable different exercise modes without requiring separate equipment, achieving multi-functionality while controlling overall structural complexity through shared mechanical elements.
Data Source
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AI summary
The vertical pulldown machine according to an embodiment of the present disclosure may include: a support frame 110 seated on a floor surface; a body frame 120 connected to the support frame 110 to form a support structure; a pair of weight units 130 rotatably mounted on the body frame 120 and mounted with a weight plate; a pair of rotating units 140 rotatably mounted on the body frame 120 and provided to rotate respectively at a preset distance apart; a pair of connection units 150 provided to connect the weight unit 130 and the rotating unit 140 to transfer a load of the weight plate to the rotating unit 140 and to enable length adjustment; a pair of grip units 160 connected to one end of each of the pair of rotating units 140 and providing a space for a user to grip; and a sitting unit 170 connected to the support frame 110 and disposed in front of the body frame 120 to provide a seat unit 174 for the user to sit.