| Golf club head having a cushion channel formed with a varied width and manufacturing method therefor -> Monitor Keywords |
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Golf club head having a cushion channel formed with a varied width and manufacturing method thereforRelated Patent Categories: Games Using Tangible Projectile, Golf, Club Or Club Support, Head, Hollow BodyGolf club head having a cushion channel formed with a varied width and manufacturing method therefor description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060084526, Golf club head having a cushion channel formed with a varied width and manufacturing method therefor. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATION [0001] This application is a continuation-in-part application of U.S. patent Ser. No. 10/423,989, filed on Apr. 28, 2003. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a golf club head having a cushion channel and a manufacturing method therefor. Particularly, the present invention relates to the cushion channel formed between a through hole of a main body of the golf club head and a prepared carbon fiber plate. More particularly, the present invention relates to an elastic colored filler filled in the cushion channel to prevent from the occurrence of wrinkles or deformation on peripheries of the through holes and the carbon fiber plates. [0004] 2. Description of the Related Art [0005] A conventional golf club head mainly includes a main body and a striking plate attached thereto, all of which are made of metal or alloy. The main body is integrally formed as a one-piece single member by casting. Alternatively, the main body is constructed from several members consisting of a crown plate, a sole plate and a side plate by welding. As to the striking plate, which is attached to a front surface of the main body by incorporating, welding or embedding. To meet various requirements, manufactures may change the configuration and the structural connection of the main body and the striking plate to lower its center of gravity and also to reduce its total weight. Since the main body is generally made of metal, the center of gravity and the total weight of the main body cannot be effectively and specifically adjusted. [0006] Another conventional golf club head mainly includes a metal main body formed with an opening at its top portion and regarded as a filling portion. Plurality of prepared carbon-fiber fabrics are piled up to form a carbon fiber plate, and the carbon fiber plate is used to attach to the opening of the main body in place for sealing it. The prepared carbon-fiber fabrics have plasticity before heating and hardening it. Firstly, the main body is placed in a die assembly and an air-inflating bag is used to support the prepared carbon-fiber fabrics on the main body so that the main body can be formed with a carbon-fiber portion. Light material of the carbon-fiber portion may cause reduction of weight and thus the center of gravity and the total weight of the main body can be specifically adjusted. By manufacturing such large-size carbon-fiber portion, it has sophisticated the manufacture processes of the prepared carbon-fiber fabrics and prolonged the manufacture time. In manufacture operation of the carbon-fiber plate, it reduces the product quality due to irregular and uncontrollable deformation of the prepared carbon-fiber fabrics in nature. Moreover, a large area of the prepared carbon-fiber fabrics may weaken the entire structural strength of the main body, and it may further make a lower striking sound instead of a sharp striking sound naturally made by a metal golf club head. [0007] Another conventional golf club head and the manufacturing method therefor are shown as FIGS. 1 and 2. A wood-type golf club head has a main body 10 and a striking plate 11. The main body 10 possesses most of the metal shell thereof but has a plurality of through holes 12 on the crown plate, the sole plate or the side plate. The through holes 12 are provided with stepped portions 121 for fitting with a number of prepared and light carbon-fiber plates 20 (or weighting member 30). Therefore, the main body 10 may not only have a low gravity center, low weight and sharp striking sound but also have a short manufacture process and better quality. The main body 10 may change the position of gravity center and entire weight quickly by adjusting the number, size and weight of the through holes 12, the carbon-fiber plates 20 and the weighting member 30. However, when the carbon-fiber plates 20 are closely fitted with the through holes 12, the interface therebetween easily deforms frequently, and wrinkles appear thereon. This influences the appearance and quality of the products of the golf club head. Therefore, it is necessary to implement and improve the conventional golf club head and the manufacture method therefor. [0008] The present invention intends to provide a golf club head having a cushion channel and a manufacturing method therefor. In the present invention, a cushion channel is provided between an inner periphery of a through hole of the golf club head and an outer periphery of a carbon-fiber plate. The cushion channel is provided with a clearance with an appropriate varied width for the absorbing deformation to reduce the wrinkles and the influence thereof on the entire structural strength. Moreover, the cushion channel may also be filled with elastic colored filler to enhance the appearance of the final product in such a way to mitigate and overcome the above problem. SUMMARY OF THE INVENTION [0009] The primary objective of this invention is to provide a golf club head having a cushion channel and a manufacturing method therefor, wherein the cushion channel is provided between an inner periphery of a through hole of a main body and an outer periphery of a carbon-fiber plate to form a clearance with an appropriate varied with for absorbing deformation to reduce the wrinkles and the influence thereof on the entire structural strength. [0010] The secondary objective of this invention is to provide the golf club head having the cushion channel and the manufacturing method therefor, wherein the cushion channel is provided between the through holes of the main body and the carbon-fiber plate, and is filled with elastic colored filler to enhance the appearance of the final product. [0011] The manufacturing method for the golf club head in accordance with an aspect of the present invention comprises the steps of: forming a through hole on a surface of a main body; preparing a carbon-fiber plate formed by carbon-fiber fabrics; providing a cushion channel between an inner periphery of the through hole and an outer periphery of the carbon-fiber plate when assembled, and permitting the cushion channel to form a varied width; filling filler into the varied width of the cushion channel; precision finishing the surface of the main body to thereby produce the final product of the golf club head. [0012] The golf club head in accordance with an aspect of the present invention includes a main body, a carbon-fiber plate and a cushion channel. The main body features a through hole and an inner periphery thereof. The carbon-fiber plate provides with an outer periphery correspondingly to the inner periphery of the through hole. When assembled, provided between the inner periphery of the through hole and the outer periphery of the carbon-fiber plate is the cushion channel formed with a varied width. [0013] In a separate aspect of the present invention, the cushion channel of the golf club head has at least one turning point where the cushion channel is varying in width for the ease of manufacture. [0014] In a further separate aspect of the present invention, the cushion channel of the golf club head has a relatively greater width at a predetermined position for absorbing the greater deformation of the main body while striking a golf ball. [0015] In a yet further separate aspect of the present invention, the cushion channel of the golf club head has a relatively greater width at a predetermined position adjacent to or beyond a striking plate according to the design need. [0016] In a yet further separate aspect of the present invention, the cushion channel of the golf club head is filled with filler for enhancing the appearance of the final product. [0017] In a yet further separate aspect of the present invention, a plurality of short fingers are provided on the outer periphery of the carbon-fiber plate and extended outwardly to confront with the inner periphery of the through hole so as to form the cushion channel therebetween such that the carbon-fiber plate positioned in the through hole precisely defines the cushion channel. [0018] In a yet further separate aspect of the present invention, a stepped portion is formed on the inner periphery of the through hole to receive the carbon-fiber plate such that the large-size carbon-fiber plate is adhered to the stepped portion of the through hole for the ease of manufacture. [0019] Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various will become apparent to those skilled in the art from this detailed description. BRIEF DESCRIPTION OF THE DRAWINGS [0020] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein: Continue reading about Golf club head having a cushion channel formed with a varied width and manufacturing method therefor... 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