KR20180003234U - Iron golf club with a badge - Google Patents

Abstract

A golf club head having a multi-level medium is disclosed herein. More specifically, the golf club head according to the present invention is an iron-type golf club head having a multi-level medium, wherein the multi-level medium is in contact with the rear surface of the striking surface of the golf club head at one level, The second level of the level medium is in contact with the back surface of the cavity created by the chassis of the golf club head. The gap created between the striking surface of the golf club head and the rear portion of the chassis can be filled with fluid having a temperature variable viscosity to provide vacuum attenuation.

Description

{IRON GOLF CLUB WITH A BADGE}

Cross-reference to related application

This application is a Part-Continuation (CIP) application of U.S. Patent Application No. 15/252/674, filed August 31, 2016, the entire disclosure of which is incorporated herein by reference.

The present invention relates generally to an iron golf club having a badge. More particularly, the present invention discloses an iron type golf club head having a medium positioned near the rear portion of an iron type golf club head providing support for the golf club head. The rear media of such iron-type golf club heads generally have a multi-level medium that produces a multiplicity of different depths, thereby allowing the insert to contact the rear outer surface of the golf club head as well as the rear of the striking . This multi-level medium not only improves the overall aesthetics of the golf club head, but also improves the damping characteristics of the iron-type golf club head.

Golf games often involve the use of a wide variety of different equipment. In general, golfers have three main categories; There can be several different types of clubs distinguished by wood, iron, and putter. Although different types of golf clubs within a bag may be different for different golfers, almost all of them will say that their iron type golf clubs play an important role in their golf game.

In the iron type classification, the type of golf club is generally divided into two main classifications: a muscle back type iron and a cavity back type iron. A golf bag type iron is generally defined as a golf club formed of a single metal piece having a thickness increasing portion, referred to as a "muscle portion ". Muscle bag type irons have existed since the early days of golf, and US Patent No. 2,007,377 to Link describes the initial design of the muscle back irons. On the other hand, a cavity back iron generally refers to a golf club that creates an opening in the vicinity of the rear portion of the golf club head. Although a cavity-type iron can generally have an open cavity exposed as shown in Antonious U.S. Patent No. 4,826,172, the cavity back iron can also be an encapsulated (as shown in U.S. Patent No. 5,766,092 to Mimeur et al. enclosed < / RTI > volume to create an enclosed volume.

Although the muscular back irons are still maintained as the gold standard for being a better golfer, the design of the cavity back irons offers significant performance advantages over conventional muscleback irons. First and most importantly, by removing weight from the rear portion of the golf club, the cavity back iron will generally increase the moment of inertia of the golf club head by placing the weight near the periphery of the golf club head . In addition to increasing the moment of inertia, the cavity back irons can further improve the performance of the iron type golf club head by increasing the distance of the iron type golf club head. Generally, by increasing the coefficient of restitution of the striking surface, which can be achieved by the cavity back irons by thinning the striking surface, the golf club can achieve a greater distance.

Due to the fact that the cavity back irons require an opening in the rear portion of the golf club head that is not apparently attractive, the golf club designer has sought to heal the defect by adding a medium to fill the cavity of the opening. U.S. Pat. No. 8,920,261 to Taylor et al. Provides an explanation of an attempt at a medium to help achieve such a goal.

 By focusing more on the cavity back irons to improve the performance of these types of irons as described above, golf club designers often create extremely thin surfaces to allow greater deflection of the face during impact of the golf ball I want to. Increased deflection of the face during impact of the golf ball will generally allow the golf ball to move further away than the counterpart with the thicker face, thereby enhancing the performance of the cavity ball-iron type golf club. Chen, US Patent No. 7,008,331, illustrates one of the previous examples of attempting a thin cotton iron to enhance the performance of a golf club head of iron type.

Recognizing that thinner materials are generally less durable than thicker materials, golf club designers have attempted to address the durability issues associated with thinning the striking surface area. U.S. Patent No. 8,961,336 to Parsons et al. Discloses an example of a way to solve this problem by filling an interior cavity of an enclosed volume of an iron golf club head with a polymer to provide some structural support for a thinned surface to provide.

Despite all efforts to improve the performance of iron-type golf club heads, none of the designs in the current industry have shown that to improve performance on cavity-type irons, the striking face as the striking face becomes thinner And does not provide an aesthetically appealing way to address the need for increased strength and toughness for the application.

One aspect of the present invention relates to a golf club head, wherein the golf club head includes a striking surface portion positioned on a front side portion of the golf club head; A chassis coupled to the rear side portion of the striking surface portion and creating a back cavity having an opening that provides access to a rear surface of the striking surface portion; and a plurality - Includes level badges. The rear cavity of the chassis further comprises at least one support tab around the periphery of the rear cavity, wherein the first level of multi-level media is substantially in contact with the rear surface of the striking surface portion, And is substantially in contact with the surface.

In another aspect of the present invention, a golf club head of an iron type includes a striking surface portion located on a front side portion of an iron golf club head; A chassis coupled to the rear side portion of the striking surface portion and creating a rear cavity having an opening that provides access to a rear surface of the striking surface portion; and a second level attached to the rear cavity, Wherein the first level of the multi-level medium is substantially in contact with the back surface of the striking surface portion, the second level is substantially in contact with the back surface of the cavity, and the multi-level medium comprises a multi- Lt; RTI ID = 0.0 > impact. ≪ / RTI >

In another aspect of the present invention, the back surface of the striking surface and the lower front side portion of the muscle portion of the chassis create a gap and void, and a fluid having a temperature variable viscosity at least partially fills the gap The rear surface of the striking surface portion, and the lower front side portion of the muscle portion of the chassis.

In another aspect of the present invention, a fluid having a temperature variable viscosity at least partially fills the gap as well as the gap, thereby connecting the gap and the gap.

These and other features, aspects, and advantages of the present invention will be better understood with reference to the following drawings, description, and claims.

BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and other features and advantages of the present invention will become apparent from the following description of the invention, which is set forth in the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and form a part of the specification, further illustrate the principles of the present invention and serve to enable those skilled in the art to make and use the present invention.
Figure 1 shows a rear perspective view of a golf club head according to an exemplary embodiment of the present invention.
Figure 2 shows an exploded perspective view of a golf club head according to an exemplary embodiment of the present invention.
Figure 3 shows an enlarged rear view of a multi-level medium according to an exemplary embodiment of the present invention.
Figure 4 shows an enlarged front view of a multi-level medium according to an exemplary embodiment of the present invention.
Figure 5 shows a front view of a golf club head according to an exemplary embodiment of the present invention, which allows the cross-sectional line A-A 'to be seen more clearly.
Figure 6 shows a cross-sectional view of a golf club head according to an exemplary embodiment of the present invention taken along the cross-sectional line A-A 'shown in Figure 5;
Figure 7 shows a cross-sectional view of the chassis of a golf club head according to an exemplary embodiment of the present invention taken along the cross-sectional line A-A 'shown in Figure 5;
FIG. 8 shows a cross-sectional view of a multi-level medium according to an exemplary embodiment of the present invention taken along line A-A 'shown in FIG.
Figure 9 shows an exploded perspective view of a golf club head according to an alternative embodiment of the present invention.
Figure 10 shows another exploded perspective view of a golf club head according to an alternative embodiment of the present invention.
Figure 11 shows a cross-sectional view of a golf club head according to an alternative embodiment of the present invention taken along the cross-sectional view A-A 'shown in Figure 5;
Figure 12 shows a cross-sectional view of a golf club head according to an alternative embodiment of the present invention taken along the cross-sectional line A-A 'shown in Figure 5;

The following detailed description explains the mode of execution of the present invention which is currently considered to be optimal. The scope of the present invention is best defined by the appended claims, so that the description is not to be taken in a limiting sense, but merely to illustrate the general principles of the present invention.

The features of the various designs are described below, each of which may be used independently of the other or in combination with other features. However, any one feature of the design may not solve any or all of the above-mentioned problems, or one of the problems described above may be solved. Also, one or more of the above problems may not be completely solved by any of the features described below.

Figure 1 of the accompanying drawings shows a perspective view of a golf club head 100 in accordance with an exemplary embodiment of the present invention. 1, the type of iron-type golf club head 100 shown here is a type of golf club head 100 having a cavity 103 in the rear portion of the chassis 102 of the golf club head 100, Of iron. The cavity 103 shown in this embodiment of the present invention is generally covered with a multi-level medium 104 attached to the cavity 103. In addition to the multi-level media 104, FIG. 1 of the accompanying drawings also shows additional components that are used to fit inside the entire cavity 103 to complete the golf club head 100. Here, the central co-culture medium 106 shown in FIG. 1 illustrates one of the additional components; The central co-culture medium 106 is designed and shaped to fit within a medial opening 105 created within the multi-level medium 104 itself. Finally, the golf club head 100 shown in FIG. 1 illustrates the outer medium 108 attached to the outer surface of the multi-level medium 104 to complete the golf club head 100. The integration of the multi-level media 104 shown in this embodiment of the present invention allows the open cavity 102 to be covered with an aesthetically pleasing media, while at the same time providing additional Thereby making it possible to provide a chassis for adhering the medium.

FIG. 2 of the accompanying drawings shows an exploded perspective view of a golf club head 200 according to an exemplary embodiment of the present invention, which allows the relationship between the various components introduced in FIG. 1 to be more clearly seen . First, and most of all, it can be seen in FIG. 2 that the chassis 202 of the golf club head 200 can be formed separately from the striking surface portion 201. The striking surface portion 201 shown in this embodiment may be generally formed of a steel type material so as to withstand the severe impact that the golf ball applies; In alternative embodiments of the present invention, the striking surface portion 201 can be made of an alternative high strength material, such as titanium, without departing from the scope and content of the present design. In addition to the foregoing, the striking surface 201 may be located near the lower end of the striking surface 201, corresponding to a sole cutout (not shown) in the chassis 202 of the body of the golf club head 200 , And sole tab 210, as shown in FIG. The sole tab 210 may be advantageous in a situation where the striking surface 201 is generally made of a material different from the chassis 202 of the golf club head 200; This is because the sole tab 210 allows the welding line to be separated from the area of great stress generated during the impact with the golf ball.

Figure 2 also shows the chassis 202 of the golf club head producing a cavity type iron by having a cavity 203 in the rear portion of the chassis 202. [ In addition to cavity 203, the exploded view of golf club head 200 also shows inner side opening 205 in cavity 203 with inner side opening 205 that interfaces with the rear surface of striking surface 201. Such openings are important in this regard because they allow the multi-level media 204 to be in contact with the striking surface 201 through the medial opening 205 to provide a structural Thereby providing support. The multi-level medium 204 shown in FIG. 2 may be used to facilitate the coupling of one inner medium opening 205 and the multi-level medium 204, as well as an additional central co- 204, a secondary cavity 207 corresponding to the size and shape of the medial opening 205, The addition of the central co-media 206 shown in Figure 2 creates additional media of aesthetic complexity for the golf club head 200 itself; At the same time, some structural integrity is provided to the secondary cavity 207 of the multi-level medium 204. Finally, the exploded view of the golf club head 200 shows the lateral portion of the outer medium 208 attached to the periphery of the multi-level medium 204.

3 of the accompanying drawings shows an enlarged rear perspective view of the multi-level media 302 to enable this very important segment of the golf club head to be more specifically identified. As described above, the back perspective of the multi-level media 302 includes a secondary cavity 307 to produce a multi-level embodiment of the multi-level media 304. The multi- However, in order to truly understand the multi-dimensional and multi-level aspects of the multi-level media 304, an enlarged front perspective view is required. FIG. 4 of the accompanying drawings shows a front perspective view of a multi-level medium 404 in accordance with an exemplary embodiment of the present invention. In this front perspective view, two different "levels" can be identified, which may be important in a cross-sectional view of the golf club head shown subsequently. First and foremost, it can be seen that the multi-level medium 404 has a first level 412 that can be the surface in contact with the striking surface 201 (shown in Figure 2) in the assembled state have. In addition to the first level 412, this front perspective view of the multi-level medium 404 also includes a second level 414 that can be in contact with the rear facing surface of the rear portion of the chassis of the golf club head Respectively. In other words, the second level 414 of the multi-level medium 404 surrounds the first level 412 of the multi-level medium 404 in the outer circumferential direction, (See FIG. 3) in the cavity 307. In this case,

In order to provide a clearer understanding of the relationship of the various components, a cross-sectional view of the golf club head is very advantageous. 5, which is a front view of the golf club head 500, is provided so that the cross-sectional line A-A 'can be seen, before introducing the cross-sectional view of the golf club head. In Figure 5, the cross-sectional line A-A 'is shown passing through the center of the golf club head bisecting the scoreline, bisecting the golf club head in the front and rear planes.

FIG. 6 of the accompanying drawings shows a cross-sectional view of a golf club head 600 taken along the cross-sectional line A-A 'shown in FIG. A cross-sectional view of the golf club head 600 allows various relationships between components to be more clearly identified. In this cross-sectional view, it can be seen that the striking surface 601 is located at the front side portion of the golf club head 600, and the striking surface 601 is a sole tab extending rearward from the sole portion of the striking surface 601 610). Behind the peripheral striking surface 601 is located the chassis 602 of the golf club head 600, which provides a portion of the top line and a portion of the sole. The chassis 602 includes an opening for allowing the multi-level media 604 to engage the plurality of surfaces of the golf club head 600, in addition to creating additional lateral components of the golf club head 600. [ (See Fig. 2). ≪ / RTI >

In this embodiment of the present invention, the first level 612 of the multi-level medium 604 is located on the front side portion of the golf club head 600 and is engaged with the rear surface of the striking surface 601, To absorb and damp the harsh effects of the impact of the impact. The first level 612 of the multi-level medium 604 and the rear surface of the striking surface 601 are configured to have a thickness of less than about 1.5 mm, more preferably less than about 1.25 mm, and most preferably less than about 1.0 mm It should be noted here that it may further comprise a thin medium of polymeric material 620. The polymeric material 620 in this embodiment of the present invention may generally have adhesive properties such that the bond between the back surface of the striking surface 601 and the first level 612 of the multi- Can be generated. In addition to providing the adhesive properties described above, the polymeric material 620 can generally provide some vibration damping and structural integrity to the entire golf club head 600. Finally, in an alternate embodiment of the present design, the polymeric material 620 may be of a grommet type that uses the opening 205 to assist in attaching the multi-level medium 604 to the striking surface 601 Attachment mechanism. Here, the second level 614 of the multi-level medium 604 of this embodiment is shown as the front facing level of the multi-level medium 604 disposed at a further position. The second level 614 of this embodiment is generally located on the cavity 602 on the chassis 602 to assist in distributing and dissipating the impact force experienced by the first level 612 of the multi- (See FIG. 2).

The different levels of the multi-level medium 604 are important in the present invention and are therefore worthy of further consideration here. First and foremost, it is important to recognize that the relationships generated by the first level 612 and the second level 614 can dissipate the stresses of the impact forces in a completely unusual manner. More specifically, the present design contemplates compressive forces on multi-level media 604 by contacting multi-level media 604 at the front side surfaces of both first level 612 and second level 614 And uses the tensile force on the multi-level medium 604. In this embodiment, the tensile force on the multi-level medium 604 is preferred to the compressive force because it distributes the impact force to the rear portion of the chassis 602 of the golf club head 600 without adding additional pressure .

As a result of the specific distribution of power achieved by the multi-level medium 604, FIG. 6 of the accompanying drawings also shows other specific features of the multi-level medium 604. More specifically, a multi-level medium 604 in accordance with the present invention is generally constructed and arranged to include two or more different surfaces 602, 1 < / RTI > level 612 and a second level 614. In this embodiment, the depth of the first level 612 is completely recessed and surrounded by the depth of the second level 614 so that the multi-level medium 604 is brought into contact with the golf club head 600 at different depths Level medium 604, which allows for a very specific,

To aid in describing the various dimensions described above, the chassis 702 and multi-level media 804 were separated into their cross-sectional views, shown in Figures 7 and 8, respectively. First of all, FIG. 7 of the accompanying drawings shows a cross-sectional view of the chassis 702 of the golf club head 700 with a striking surface 701. The striking surface disposed farthest from the cavity 703 created by the chassis 702 of the golf club head 700 forms a first cavity depth having a first depth d1. The rear support tabs 715 of the chassis 702 form a second cavity depth d2. One or more support tabs 715 provide a surface for a second level of multi-level media to contact the chassis. In this current embodiment of the present invention, the multi-level medium 704 is in contact with the golf club head 700 at a second cavity depth d2 near the top portion of the golf club head 700, Before returning to contact with the golf club head 700 at the second disclosed depth d2 in the vicinity of the bottom sol portion of the head 700, 0.0 > (d1) < / RTI > In this embodiment of the present invention, d1 is always deeper than d2 and d1 may generally be greater than about 3.0 mm, more preferably greater than about 3.25 mm, and most preferably greater than about 3.5 mm. On the other hand, D2 may generally be less than about 2.5 mm, more preferably less than about 2.25 mm, and most preferably less than about 2.0 mm, all of which do not depart from the scope and content of the present invention.

8 of the accompanying drawings shows a cross-sectional view of a multi-level medium 804 in accordance with an exemplary embodiment of the present invention. This enlarged cross-sectional view of the multi-level media 804 can illustrate the thickness of the multi-material media 804 with a thickness of d3 for most of the multi-material media 804, Is a reduced material thickness of d4 to accommodate the lateral media. The thickness d3 shown in this present exemplary embodiment may generally be from about 0.8 mm to about 1.2 mm, more preferably from about 0.9 mm to about 1.1 mm, and most preferably about 1.0 mm. The reduced material thickness d4 of the multi-material media 804 in this current exemplary embodiment may generally be less than about 0.9 mm, more preferably less than about 0.8 mm, and most preferably less than about 0.75 mm, All of which do not depart from the scope and contents of the present invention.

In addition to the description of material thickness, FIG. 8 of the accompanying drawings also shows first level 812 and second level 814 at two different levels of multi-level medium 804. In addition to the two media at different levels, Figure 8 of the accompanying drawings can be used to help identify the relative angles of the first level 812 and the second level 814 of angle [ . In the present exemplary embodiment of the present invention,? 1 may generally be from about 0 to about 20 degrees, more preferably from about 0 to about 10 degrees, and most preferably from about 0 to about 5 degrees.

9 of the accompanying drawings shows an exploded perspective view of a golf club head 900 according to an alternative embodiment of the present invention. In this exploded perspective view, the individual components of the golf club head 900 can be more clearly identified and the relationship between the respective components is described. Similar to the previous description, the golf club head 900 may be constructed of a basic component, such as a striking surface portion 901 having a sole taps 910 attached to the front side portion of the chassis 202. The chassis 902 is configured to allow the rear surface of the striking surface portion 901 to be exposed to the component at the rear of the golf club head 900 such as the first medial side 904 as well as the second medial side 906 (905). ≪ / RTI > Generally, a polymeric material 920 can be attached to the front side surface of the first medium 904 and the polymeric material 920 has adhesive properties to allow the media 904 to be easily attached.

In addition to the above-described components, an exploded perspective view of the golf club head 900 shown in Fig. 9 also shows that fluid 922 with a temperature variable viscosity is pumped at the lower end of the chassis 902 (hereinafter also referred to as 1022 As shown in FIG. Placing a fluid 922 having a temperature variable viscosity 922 in this position allows fluid 922 having a temperature variable viscosity to contact the rear surface of the striking surface portion 901, 900) as well as vibration damping. Fluid 922 having a temperature variable viscosity also fills the gap between striking surface portion 901 and the front side surface of chassis 902 in addition to filling gap 1022 (shown in Figure 10) . To illustrate the voids 1024 (shown in FIG. 10) created by the chassis 902, FIG. 10 has an exploded perspective view from the front view.

10 of the accompanying drawings shows an exploded front view of a golf club head 1000 according to an alternative embodiment of the present invention. More specifically, the exploded view of the golf club head 1000 shown in FIG. 10 allows the clearance 1024 in the chassis 1002 to be more clearly identified. The illustration of the inner side of the chassis 1002 allows the physical boundaries of the fluid 1022 having a temperature variable viscosity to be more clearly identified. Accordingly, when a fluid 1022 having a temperature-variable viscosity is introduced into the rear portion of the striking surface portion 1001 through the inner-side opening portion 1005, the viscous property of the fluid 1022 having a temperature- It is confirmed that the shape of the inner side of the chassis 1002 is substantially coincided with that of the inner side of the chassis 1002. In one exemplary embodiment of the present invention shown here, fluid 1022 is present in an amount of from about 2.0 grams to about 8.0 grams, more preferably from about 2.5 grams to about 7.5 grams, and most preferably from about 3.0 grams to about 7.0 grams , All of which do not depart from the scope and content of the present invention.

Although Figures 9 and 10 illustrate fluids 922 and 1022 having a temperature variable viscosity that takes the same shape as the cavity 1024 created by the chassis 1002, The shape may be slightly different depending on the actual flow characteristics of the fluid 1022. [ In one embodiment of the present invention, the temperature and the viscosity may cause the position of the fluid 1022 to be more toe deflected while in other embodiments the temperature and viscosity may be such that the position of the fluid 1022 is more heeled heel), all of which do not deviate from the scope and content of the present invention. It is important here that it is important that a portion of the fluid 1022 is maintained near the gap created by the striking surface portion 1001 and the front side portion of the chassis 1002 regardless of the actual shape taken by the fluid 1022 It should be noted. This gap allows the fluid 1022 to provide a vibration damping effect, thereby minimizing the unpleasant sound and feel of the golf club head 1000 when the golf club head impacts the golf ball.

The fluid 1022 having a temperature variable viscosity used in this preferred embodiment of the present invention may generally be a pressure sensitive adhesive designed to function differently at different temperatures. More specifically, fluid 1022 in this embodiment is an H.B. It may be a hot melt type material from a fuller. Fluid 1022 having a temperature variable viscosity can be more specifically defined as having a viscosity of 4,125 cP (mPa.s) at 300 ° F and a viscosity of 2,010 cP (mPa.s) at 350 ° F. Having a variable viscosity at different temperatures makes it possible for the fluid 1022 to have different properties such that the fluid can reach a position in the golf club head 1000 where the fluid is subjected to significant vibrations, It can help solve the problem of feeling. In addition to the viscosity figure, it is determined that the preferred fluid 1022 can have a 45 ounce loop tack and that a 180 degree peel (60 sec / 75F, 1 mil) is 2.2 lbs / inch It is worth doing. This characteristic can help to identify the tackiness of the fluid 1022 and to identify how such fluid will be deposited on the back surface of the striking surface portion 1001.

A cross-sectional view of the golf club head 1100 is shown in FIG. 11 to illustrate the specific relationship between the various components shown in this alternative embodiment of the present invention. 11 of the accompanying drawings is a cross-sectional view of an alternative embodiment of the present invention taken along the cross-sectional view A-A 'shown in Fig. A cross-sectional view of golf club head 1100 shows fluid 1122 being filled from the rear side of chassis 1102 through inner side opening 1105. The fluid 1122 may flow downward through the gravity and may flow from the lower portion of the chassis 1102 through the gap 1026 created between the rear surface of the striking surface 1101 and the front lower portion of the chassis 1102 The cavity 1024 can be filled. These gaps 1026 may generally have a short distance d5 between about 1.0 mm and about 3.0 m, more preferably between about 1.5 mm and about 2.5 mm, and most preferably about 1.5 mm.

It is important for the proper function of the present invention to have the short distance 1026 distances d5 described above because such distance is such that a fluid 1122 having a temperature variable viscosity is applied to the sol- Since it provides a sufficiently small clearance 1026 that can provide support for the striking surface portion 1101 while still contacting the front side surface. In addition, the gap 1026 also needs to be large enough so that the fluid 1022 can flow through the gap 1026 and reach the gap 1022 at the lower end of the golf club head 1100 have. The distance d5 of the gap 1026 allows not only the fluid 1122 to be interposed between the striking surface portion 1101 and the chassis 1102 but also to maintain the temperature variable viscosity Allowing the fluid 1122 having the lower portion 1112 to flow toward the lower void 1124 portion of the chassis 1102.

12 of the accompanying drawings shows a cross-sectional view of a golf club head 1200 in accordance with an alternative embodiment of the present invention. In this embodiment, it can be seen that the fluid 1222 only fills the gap 1126 portion of the golf club head 1200 and does not fill the portion of the gap 1224. This embodiment of the present invention is based on the assumption that less fluid 1222 is required and that the concentration of fluid 1222 in gap 1226 creates the desired vibration damping without the addition of additional fluid 1222 Lt; / RTI >

Unless otherwise explicitly stated otherwise, or to the extent that it is not otherwise expressly specified, such as the amount of material, the moment of inertia, the center of gravity position, the loft, the draft angle, various performance ratios, , All numerical ranges, amounts, values, and percentages can be read as being preceded by the word " about "even though the term" about "is not expressly expressed in such value, amount, or range. Accordingly, unless stated to the contrary, the numerical parameters set forth in the foregoing specification and appended claims are approximate values that may vary depending upon the desired properties sought to be obtained by the present design. At the very least, and not as an attempt to limit the application of the doctrine of equivalents, each numerical parameter should at least be construed in light of the number of significant digits noted and by applying ordinary rounding techniques.

Although the numerical ranges and parameters setting the broad scope of the present invention are approximate, the numerical values described in the specific examples are described as precisely as possible. However, any numerical value essentially includes certain errors resulting from the standard deviation found in each testing measurement. In addition, when a numerical range of variable ranges is described herein, it is contemplated that any combination of these values, including the recited values, may be used.

It is, of course, to be understood that the foregoing is concerned with exemplary embodiments of the present invention and that modifications may be made without departing from the spirit and scope of the present invention as set forth in the following claims.

Claims (20)

The golf club head is:
A striking surface portion located on a front side portion of the golf club head;
A chassis coupled to the rear side portion of the striking surface portion and having an opening that provides access to a rear surface of the striking surface portion,
The rear surface of the striking face portion and the lower front side portion of the muscle portion of the chassis create gaps and voids,
The gap is a chassis, disposed over the void and connected to the void, and
And a fluid having a temperature variable viscosity that at least partially fills the gap and contacts the rear surface of the striking surface and the lower front side portion of the muscle portion of the chassis. The method according to claim 1,
The fluid, in addition to filling the gap, at least partially fills the void. The method according to claim 1,
Wherein the fluid has a viscosity of about 4,125 cP (mPa.s) at 300 DEG F and a viscosity of about 2,010 cP (MPa.s) at 350 DEG F. The method of claim 3,
A golf club head having a 45-ounce loop tack fluid. 5. The method of claim 4,
Wherein the fluid has a 180 degree peel of about 2.2 lbs / inch (60 seconds / 75F, 1 mil). The method according to claim 1,
Wherein the fluid has a mass of about 2.0 grams to about 8.0 grams. The method according to claim 6,
Wherein the fluid has a mass of from about 2.5 grams to about 7.5 grams. 8. The method of claim 7,
Wherein the fluid has a mass of from about 3.0 grams to about 7.0 grams. The method according to claim 6,
Wherein the clearance has a distance of about 1.0 mm to about 3.0 mm. 10. The method of claim 9,
Wherein the gap has a distance of about 1.5 to about 2.5 mm. 11. The method of claim 10,
The golf club head has a clearance of about 1.5 mm. 10. The method of claim 9,
Wherein the fluid at least partially fills the void. 13. The method of claim 12,
A golf club head in which the fluid continues to fill gaps and voids. The golf club head is:
A striking surface portion located on a front side portion of the golf club head;
A chassis coupled to the rear side portion of the striking surface portion and having an opening that provides access to a rear surface of the striking surface portion,
The rear surface of the striking surface portion and the lower front side portion of the muscle portion of the chassis create clearances and voids;
The gap is a chassis, disposed over the void and connected to the void, and
A fluid having a temperature variable viscosity that at least partially fills the gap as well as the gap and connects the gap and the gap,
Wherein the fluid is in contact with the rear surface of the striking surface and the lower front side portion of the muscle portion of the chassis. 15. The method of claim 14,
Wherein the clearance has a distance of about 1.0 mm to about 3.0 mm. 16. The method of claim 15,
Wherein the gap has a distance of about 1.5 to about 2.5 mm. 17. The method of claim 16,
The golf club head has a clearance of about 1.5 mm. 16. The method of claim 15,
Wherein the fluid has a mass of about 2.0 grams to about 8.0 grams. 19. The method of claim 18,
Wherein the fluid has a mass of from about 2.5 grams to about 7.5 grams. 20. The method of claim 19,
Wherein the fluid has a mass of from about 3.0 grams to about 7.0 grams.

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