Golf Club Head Weight Member Penetrating Insertion and Welding
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Solution Overview
Problem
Existing golf club heads face challenges in securely fixing a weight member without compromising the appearance and achieving high design flexibility for the center of gravity.
Innovation Solution
A golf club head design featuring a weight member with an exposed surface on the sole and/or back surfaces, inserted into a receiving portion that penetrates through the head body, and welded on one side, allowing for secure fixation and adjustable center of gravity positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a weight member is fixed to a golf club head using conventional methods, then the weight member can be securely attached, but the appearance of the golf club head deteriorates due to visible welding or fixing structures
Solution Approach 1:
The welding operation is extracted and relocated to the interior of the head body, away from the exterior surfaces. The weight member is welded to internal structures or recessed areas, separating the joining function from the aesthetic surfaces, thus maintaining appearance while ensuring secure fixation.
Solution Approach 2:
An intermediary structure or recessed area within the head body is introduced to accommodate the weight member and its welding. This intermediary space allows the welding to occur without directly exposing the welded joint on the exterior surfaces, mediating between the need for secure attachment and aesthetic appearance.
2Reliability
If a weight member is inserted into a receiving portion that penetrates through the head body, then the weight member can be securely fixed, but the design flexibility for center of gravity positioning is limited by the penetration structure
Solution Approach 1:
The receiving portion is segmented into multiple sections or zones within the head body, allowing the weight member to be positioned at different locations along the penetration path. This segmentation enables adjustable center of gravity positioning while maintaining secure fixation through the penetration structure.
Solution Approach 2:
The receiving portion is designed with dynamic positioning capabilities, such as adjustable stops, selectable engagement points, or movable components that allow the weight member to be positioned at various locations within the penetration path. This dynamic design provides flexibility for center of gravity adjustment while ensuring secure fixation at the selected position.
3Reliability
If the welded portion is formed on the boundary between the weight member and head body on the first side, then the weight member is securely attached, but the exposed surface on the second side may show signs of the fixing structure
Solution Approach 1:
The head body and weight member interface is designed asymmetrically, with the welding concentrated on the first side (interior or non-exposed side) and the second side (exposed surface) designed to minimize or hide any signs of the fixing structure. This asymmetric design ensures secure attachment while preserving the aesthetic appearance of the exposed surface.
Solution Approach 2:
Different regions of the weight member-head body interface are assigned different qualities: the first side is optimized for secure welding and attachment, while the second side (exposed surface) is optimized for aesthetic appearance. This local differentiation allows the welded portion to be formed on the first side without compromising the appearance of the second side.
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 enhances the weight member's secure attachment, improves the moment of inertia, and maintains a sleek appearance by hiding the welded portion, while allowing for precise center of gravity adjustment.
Implementation Method 1
a welded portion is formed on a boundary between the weight member and the head body on the first side of the weight member
Data Source
AI summary
A head includes a face member constituting at least a part of a striking face, a head body having a face opening, and a weight member fixed to the head body. The face opening is covered by the face member. The weight member includes an exposed surface constituting a part of a sole surface and/or a part of a back surface. The head body includes a weight member receiving portion into which the weight member is inserted from a first side and that holds the weight member. The weight member receiving portion penetrates through the head body from the first side to a second side. The exposed surface is formed on the second side of the weight member. A welded portion is formed on a boundary between the weight member and the head body on the first side of the weight member.