Golf Club Head Rotating Weight Mechanism for Center of Gravity Adjustment
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Solution Overview
Problem
Existing golf club heads lack ease and reliability in changing the position of the center of gravity, which is crucial for optimizing flight distance and trajectory, as the optimum position varies among players and conditions.
Innovation Solution
A golf club head design featuring a head body with a recess portion and a rotatable additional member having a rotational symmetric contour, held by a mechanism that allows transition between holding and releasing states, enabling easy adjustment of the center of gravity through rotation while ensuring reliable fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a weight member is screwed into a screw stock or weights are exchanged in the head body, then the position of the center of gravity can be changed, but the operation becomes complex and time-consuming
Solution Approach 1:
The weight adjusting mechanism is segmented into a rotatable weight member with multiple weight portions and a holding mechanism with multiple holding positions. Each weight portion can be independently positioned at different holding positions by rotation, allowing flexible center of gravity adjustment without complex assembly disassembly operations
Solution Approach 2:
The weight member is designed to be rotatable rather than fixed, transforming the static weight configuration into a dynamic one. The holding mechanism enables the weight member to rotate to different angles, dynamically adjusting the center of gravity position while maintaining secure fixation at each position
2Ease of operation
If the additional member is made rotatable for easy adjustment, then the center of gravity position can be easily changed, but the reliability of fixation may be compromised
Solution Approach 1:
The holding mechanism is segmented into multiple discrete holding positions around the rotation path. The holding portions are strategically positioned to engage with the weight member at specific angular positions, providing reliable fixation while allowing rotation between positions. This segmentation enables the system to achieve both rotatability for adjustment and secure fixation for reliability
Solution Approach 2:
The holding portions are asymmetrically positioned relative to the rotation axis, with specific holding portions located at different angular positions. This asymmetric arrangement creates selective engagement points that provide reliable fixation at desired positions while maintaining the ability to rotate to other positions for adjustment
Data Source
AI summary
A head includes a head body, an additional member in which a contour shape obtained by a projection onto a plane has a rotational symmetric axis, and a holding mechanism for holding the additional member. The head body has a recess portion in which at least a part of the additional member can be fitted. The holding mechanism is constituted to enable a mutual transition of a holding state in which the additional member is held in the recess portion and a releasing state in which the hold is released. The recess portion inhibits a rotation around the rotational symmetric axis of the additional member in the holding state. The additional member is rotatable around the rotational symmetric axis in the releasing state. A phase of the additional member in the holding state is changed so that a position of a center of gravity of the head can be varied.