Patent application number | Description | Published |
20120186060 | MANUFACTURING METHOD OF AN IRON-TYPE GOLF CLUB HEAD - A manufacturing method of an iron-type golf club head has acts of: forming a blank for an iron-type club head with a raw material selected from the group of medium-carbon and low-carbon steel, wherein the blank has a striking face integrally-formed; heating a center of the striking face on the blank to a predetermined quenching temperature; quenching the blank to cool down the blank rapidly to form a hardened layer, wherein a hardness of the striking face gradually decreases radially from the center to a periphery of the striking face; machining the striking face to form multiple grooves, and surface treating the blank to accomplish the iron-type golf club head. Therefore, the iron-type golf club head has a softer head body and a harder striking face to have the inclined angles of the hosels easily adjusted, as well as high resistance of the striking face. | 07-26-2012 |
20130281229 | WOOD GOLF CLUB HEAD - A wood golf club head has a sole plate, a crown, a strike face and a hosel that are all made of metal and are welded together. The sole plate is formed by forging to have different thicknesses at different parts and has a weight formed as a thicker part of the sole plate. Therefore, when the wood golf club head is manufactured, the shape, the size and the position of the weight is precisely set based on the design of the wood golf club head. Then the gravity center of the wood golf club head is accurately determined. Moreover, since the weight is directly formed on the sole plate without any gaps and the shape of the weight is simple and smooth, the wood golf club head performs a clear and pleasing striking sound while it strikes. | 10-24-2013 |
20140123471 | MANUFACTURING METHOD OF AN INTEGRALLY FORGED GOLF CLUB HEAD - A manufacturing method of an integrally forged golf club head has acts of forging a crude rod to form a blank of a main body of a golf club head, mounting a weight in a mounting recess of the blank of the main body of the golf club head, covering the mounting recess with an outer cover, and then welding and forging the blank of the main body of the golf club head and the outer cover to form a golf club head. Thus, the at least one weight is securely held in the golf club head and does not come off the golf club head, and also no noise occurs when the golf club head strikes a golf ball. Furthermore, the at least one weight is not exposed so that the golf club head has a good appearance and improved quality. | 05-08-2014 |
20140141698 | SURFACE TREATING METHOD FOR A GOLF CLUB HEAD - A surface treating method for a golf club head made of carbon steel basically has one nitriding step and two oxidizing steps. The method further has polishing, sandblasting and rinsing steps and so on processed prior to or between the basic steps, and then has polishing and oil immersing steps and so on processed after the basic steps. The finished golf club head has uniform dark appearance and also has good corrosion resistance and abrasion resistance. Furthermore, the surface of the finished golf club head does not peel off. Moreover, the method also has advantages including low pollution and low cost. | 05-22-2014 |
20150011326 | STRIKE PLATE OF A GOLF CLUB HEAD - A strike plate of a golf club head has a striking zone and an elastic annular part defined around the striking zone and adjacent to the edge of the strike plate. Multiple annular grooves are formed in the elastic annular part on the rear face of the strike plate and are arranged at intervals. Multiple annular flanges are formed on the rear face. Each annular flange is formed between two adjacent annular grooves. The elastic annular part with multiple thicker and thinner parts alternately arranged provides elasticity as a spring. Therefore, when any part of the striking zone of the strike plate is stricken on the golf ball, the elastic annular part generates a sufficient elastic effect to effectively enlarge the sweet spot on the strike plate. | 01-08-2015 |
20150031471 | Iron Golf Club Head - An iron golf club head has a strike plate mounted securely in a front face of a head body. The head body has a sealed cavity formed in back of the strike plate so that only the peripheral edge of the strike plate is connected to the head body. When the iron golf club head strikes the golf ball, the strike plate deforms to independently bear the striking force and the cavity provides room to receive the deformation of the strike plate. Therefore, the rebounding effect is enhanced when the iron golf club head hits the golf ball. | 01-29-2015 |
20150047747 | SURFACE TREATING METHOD FOR A GOLF CLUB HEAD - A surface treating method for a golf club head made of carbon steel basically has one nitriding step and two oxidizing steps. The method further has polishing, sandblasting and rinsing steps and so on processed prior to or between the basic steps, and then has polishing and oil immersing steps and so on processed after the basic steps. The finished golf club head has uniform dark appearance and also has good corrosion resistance and abrasion resistance. Furthermore, the surface of the finished golf club head does not peel off. Moreover, the method also has advantages including low pollution and low cost. | 02-19-2015 |
20150290503 | TOP CROWN OF A GOLF CLUB HEAD - A top crown of a golf club head has a crown body and multiple reinforcing ribs formed on at least one of an inner surface and an outer surface of the crown body. The reinforcing ribs are arranged as a mesh including multiple grids. The top crown can be hot forged to form the meshed reinforcing ribs. With the meshed reinforcing ribs on the top crown, a thickness of the crown body of the top crown can be appropriately reduced and the strength of the crown body is enhanced by the reinforcing ribs. Accordingly, elasticity of the top crown of the golf club head is increased and the top crown has low center of gravity. | 10-15-2015 |