Golf Club Head Rib Welding Bead Anchoring
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Solution Overview
Problem
Reducing the weight of golf club heads while maintaining rigidity and preventing degradation in ball hitting sound, particularly when using ribs made from different materials, as existing welding methods can be challenging and lead to increased weight.
Innovation Solution
A golf club head design featuring a hollow structure with a rib on its inner surface and a welding bead that passes through openings in the rib, allowing for anchoring regardless of material differences, and incorporating holes in the rib to reduce weight without compromising rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rib is formed on the inner surface of the head body to improve rigidity and ball hitting sound, then the rigidity and sound quality are improved, but the weight of the golf club head increases
Solution Approach 1:
The rib is formed with through-holes passing through its thickness, creating a porous or hollow structure within the rib itself. This reduces the material volume and weight of the rib while maintaining its structural function of improving rigidity and ball hitting sound quality.
Solution Approach 2:
The invention uses different materials for the rib and the head body, specifically a material with lower specific gravity for the rib. This composite approach allows weight reduction in the rib portion while maintaining the required rigidity improvement function.
2Reliability
If a rib is formed to improve ball hitting sound, then the natural frequency increases and sound quality improves, but the weight increases due to the rib material
Solution Approach 1:
The through-holes in the rib create a porous structure that reduces weight while preserving the rib's ability to improve natural frequency and ball hitting sound. The holes reduce material mass without significantly compromising the vibrational characteristics.
Solution Approach 2:
The invention changes the material parameter by using a material with lower specific gravity for the rib compared to the head body. This parameter change allows weight reduction while maintaining the rib's function of improving ball hitting sound and natural frequency.
3Weight of stationary object
If different raw materials are used for the rib and head body to reduce weight, then weight reduction is achieved, but welding becomes difficult and manufacturing complexity increases
Solution Approach 1:
The welding bead acts as an intermediary element that connects the rib and head body made of different materials. It facilitates the joining process between dissimilar materials, enabling weight reduction through material selection while maintaining manufacturability.
Solution Approach 2:
The invention changes the material parameters by selecting materials with lower specific gravity for the rib, accepting the trade-off of welding difficulty but enabling overall weight reduction. The welding bead composition and process parameters are adapted to accommodate the different material properties.
Data Source
AI summary
Provided is a golf club head including a head body that has a hollow structure, a rib, and a welding bead. The head body has a first region. The rib stands upright from an inner surface of the first region. The welding bead fixes the first region and the rib to each other. An opening is formed in side faces of the rib. The welding bead extends from a first position on the inner surface of the first region, passes through the opening, and reaches a second position on the inner surface of the first region.