Internal Movable Weight Golf Club Head for Trajectory Control

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Solution Overview

Problem

Golfers experience difficulties in reliably hitting the ball in the intended direction and achieving the desired flight path due to issues like slicing, hooking, and inconsistent trajectories, which existing golf club technologies have not adequately addressed.

Innovation Solution

The design of a golf club head with a movable weight system that can be internally positioned to adjust the club's mass distribution, using a track system within the club head to reposition the weight for optimal trajectory, allowing for customization to address specific golfer tendencies such as slicing, hooking, or achieving higher trajectories.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a movable weight system is added to adjust mass distribution, then trajectory control and shot accuracy are improved, but device complexity increases

Engineering Contradiction:
Improvetrajectory controlVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements a movable weight system where the weight can be repositioned along a track within the club head, allowing dynamic adjustment of mass distribution to control trajectory and correct shot patterns like slicing or hooking

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The weight system is divided into separate components: a movable weight member, a track system with multiple positions, and a mechanism for repositioning the weight, allowing independent optimization of each component

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If the weight system is contained internally within the club head, then aerodynamic performance is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveaerodynamic performanceVSAvoidease of operation
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The weight member and track system are nested within the club head body, with the track contained in a cavity inside the club head, maintaining a streamlined external shape for optimal aerodynamics while housing the adjustment mechanism internally

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The weight member is designed to be repositionable by the user through a simple mechanism that allows easy adjustment of the weight position along the track without requiring tools or complex procedures

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2470274B1Wood type golf club and golf club head having an internal movable weight
Publication Date: 2017.10.04 NIKE INNOVATE CV
  • EP2470274B1 patent drawingFigure 1
  • EP2470274B1 patent drawingFigure 2A
  • EP2470274B1 patent drawingFigure 2B

AI summary

A golf club head (102) includes a wood type golf club head body having a ball striking face portion, a rear end portion opposite the ball striking face portion, a crown or top portion, a sole or bottom portion, a toe end portion, and a heel end portion. Further, the golf club head includes a moveable weight member (200), which is contained internally within the golf club head body so that the movable weight is not exposed. Also, the club head includes a track system (201) contained internally within the golf club head body so that the track system is not exposed. The track system includes a track which extends around the interior of one or more walls that comprise the golf club head body and the moveable weight member moves around the interior of the golf club head by sliding in the track (201a).