CN1114910A - Golf club head to shaft connection - Google Patents

Abstract

The golf club with head and handle includes a sleeve tube combined with head, which has an internal wall part extended axially and an annular wall part with angles relative to sequentially adjacent segments in axial direction, at least part of which has locally eccentric surface. The lower part of handle can be axially telescopic at least locally, so that it may be inserted in said sleeve tube. A gap between said wall part and lower handle may be filled with adhesive for sticking them together.

Description

The connector that connects golf club head and handle portion

The application is that the sequence number of submitting on November 9th, 1992 is the part continuation application of 07/973944 application, and the latter is again that now to have patented and be published in the patent No. on November 24th, 1992 be that its sequence number of US5165688 is 07/743432 continuation application.

The present invention generally relates to golf clubs, more particularly, the present invention relates to have the connection glof club head of some advantage and the connector of handle portion.

In order to obtain higher power conversion utilization rate when brandishing club, people determine to have done a lot of trials from the receptacle area of golf to aspect the weight of the metallic article of club head concrete.Make at square stance, with this bigger energy or Momentum Transfer to golf.This just requires for example to reduce the metal use amount of club receptacle area.

Above-mentioned trial also comprises the improvement of handle portion being passed the configuration of the head of using the wooden one-tenth of persimmon.Usually the structure that is adopted is big inferior bar type " the Dynopower Fluid Feel " rod of Weir about the nineteen fifty-seven output; Inferior " Helen Hicks " rod of Weir of producing about the twenties; And some MacGregor rod of producing in the thirties later.Also can be referring to the US4995609 patent that is entitled as iron head golf clubs, this patent has transferred Callaway golf company, has wherein disclosed a kind ofly to reduce quality or weight is the socket of feature.

As far as our knowledge goes, also handle portion is not linked to each other with golf clubs iron head at present and handle is inserted near the connected mode in iron head bottom, do not reduce near the diameter in iron head bottom or bottom so that it does not influence one side of basal plane or polygon mode yet, more handle portion is not linked to each other with non-constant conical cavity in the Hose, hosel so as when to assemble vertically can along handle and chamber extending part tightly be press-fitted and make the striker well sense of touch and between near handle the awl of chamber and chamber, provide the connected mode of the annulus that can be used for boning to opposite force from the iron head to the ball close-fitting.

In addition, dwindle the expansion of portion of end office (EO) and hold the mode that is fastened in the chamber also not have dwindling of handle by making.

Main purpose of the present invention provides a kind of improved, connector that connection golf club head that meet above-mentioned requirements divides handle, and common above-mentioned head is the iron head, but also can be sphenocephaly, dental formulas head, touch the head of head, wooden head or other type.

The present invention consists essentially of or has:

A) sleeve pipe that combines with the bar head, this sleeve pipe have the inner wall section of extending along axis direction, and the annular wall portions that comparatively tilts at axial adjacent in turn section along axis direction, and one of them wall part has the partial eccentricity surface;

B) above-mentioned have an end portion, can be firmly the end of end portion be inserted in the above-mentioned sleeve pipe, makes end portion at least partly along the axis direction purse up, therefore can firmly the bar end portion be inserted in the sleeve pipe, and be close to eccentric surface;

C) above-mentioned wall part and handle, at its lower end partly form the slit of departing from eccentric surface vertically, so that hold binding agent, it are partly contacted with handle, at its lower end, and the handle, at its lower end part is solidified with wall spare and bonded together.

As can be seen, intersect sleeve pipe and bar head bottom, handle, at its lower end partly has the bracketed part as finger-like and so on, the bracketed part lower end is in above-mentioned intersection or close up each other near the intersection, thereby restriction or prevention bracketed part dwindle, form connected mode a kind of friction-type, that be crowded together, utilize binding agent to improve the firm degree of above-mentioned connection again.Slit by means of binding agent is held in the eccentric surface setting that departs from the chamber between handle and chamber can promote above-mentioned bonding.In this case, the bracketed part lower end is laterally contacting each other near above-mentioned intersection usually.Certainly, the bottom that also can not meet at the bar head bottom of handle.

Another object of the present invention is to guarantee handle fixing (for example making short wooden stake) bottom, makes earlier above-mentionedly to dwindle bottom, and then its part is swollen.

Obviously, another purpose of the present invention is to guarantee that graphite handle tapering point is connected with the bar connector.

Can be more deep by following description and explanation to the details understanding of above-mentioned purpose of the present invention, other purpose and advantage and illustrated embodiment to accompanying drawing, wherein:

Fig. 1 is the front view of golf clubs of the present invention;

Fig. 2 by Fig. 1 the front of ground bar head and the perspective view of bottom surface;

Fig. 3 is the perspective view of the middle and upper part of socket;

Fig. 4 is the rear end perspective view of Fig. 1-3 king-rod head and socket part;

Fig. 5 is the top plan view of socket upper end;

Fig. 6 is the perspective view of the handle, at its lower end before handle, at its lower end is packed into socket and the taper;

Fig. 6 a and Fig. 6 are similar, but shown in it are that the lower end closes up handle bracketed part together;

The longitudinal sectional drawing of Fig. 7 for cutting open along the taper in the socket lower end;

Fig. 8 is the perspective view of conical graphite handle;

Fig. 9 shows the terminal cross-sectional view of cutting open along the handle of Fig. 8;

Figure 10 is the view of club head that the handle among Fig. 8 is packed into;

Figure 11 is and the similar view of Figure 10 that shown in it is a kind of remodeling;

Figure 12 is and the similar view of Figure 11 that it shows the situation of handle jam-pack in socket;

Figure 13 shows the flat tongue portion in lower end;

Figure 14 is and the similar view of Figure 10, but it shows another kind of remodeling of the present invention, and what adopted in this example is wooden bar head.

In above-mentioned accompanying drawing, golf clubs 10 (for example iron head golf clubs) comprises a bar head 11 and ferrule 12.Socket 13 shown in the figure is processed into or is cast into the part of bar head usually, and it is made by metal or other material.Sleeve pipe 14 combines with the bar head, and it comprises inwall, and extension, sleeve pipe bottom is terminal taper down, usually in the bottom 15 of heel shape place towards the bar head.In this connection, above-mentioned sleeve pipe is preferably near 16 places of the heel 11b of shape place and intersects with head bottom 15, because bottom 15 and casing axis are at angle, above-mentioned interface is generally ellipse.

Fig. 5 and Fig. 7 show the sleeve pipe tapering part and originate in zone by 18 expressions of line or plane, and this district is arranged in the below of vertical, straight, the cross section of socket for the chamber 19 of annular, and this chamber extends on the level 18 from the upper end 21 of socket.Chamber 19 can be taper.As Fig. 5 and shown in Figure 7, the cone angle of internal surface of sleeve pipe 22 preferably changes, and certainly when having determined taper, above-mentioned cone angle can change and go to zero.For example, can have different cone angle as shown in the figure, have bigger cone angle between the leading edge 22a of wall 22 and the vertical line, and the trailing edge 22b of wall 22 and the angle β between the vertical line less (being generally zero), the dual-side 22c of wall and the cone angle of 22d are between α and the β.Therefore, conical cavity 80 is eccentric with respect to the cylindrical outer surface 13a on the socket top of 18 tops, plane and the socket cavity 13b of above-mentioned surface.In addition, be parallel to 18 and 18 during perpendicular to socket axis 91, each cross section of casing cavity is for annular or be similar to annular as plane 18a and 18b.At this moment, Fig. 4, direction shown in the arrow 25 is the forward play direction in 5 and 7, that is to say that this direction is towards bar head front 11a (ball hits direction).With regard to cylindrical handle, the β angle can be reduced to zero, perhaps can equal standard cone angle (the deflection width in a side per inch length is 0.00375 inch).The α angle is between about 1 °-Yue 8 °.

In addition, the socket wall thickness of 18 tops, plane also can change, and as noted, for example wall can be circle, taper or ellipse.The wall thickness t at place, socket front side ₁Can be substantially equal to or greater than the thickness t at socket rear side place ₂This relation can be by being processed into chamber 19 the cylindrical outer surface off-centre of current tap socket, and the outer surface that perhaps makes socket is non-cylindrical or oval being achieved.The main shaft of the main shaft of above-mentioned chamber/handle and socket profile can rough alignment or deflection slightly.These relations have influence on socket and the special relationship of the actual distribution of weight being transferred to from leading edge junction 50 and 51 between the bar head surface of bar head (being the tip, between top and the bottom section) itself, so that make momentum bigger or more concentrated when brandishing club.

Another characteristics of the present invention are that the end portion that guarantees handle can firmly be loaded in the sleeve pipe, and handle, at its lower end partly has otch, can make end portion purse up (making the notch portion purse up at least) whereby, firmly is loaded in the sleeve pipe subsequently.At last, as shown in Figure 6, the end portion 30 of handle 31 can form circular space easily, and the bracketed part 32 that extends towards the end has bottom free end or terminal 33.Between metal part or flat tongue 32, process otch 34 that some extend towards the end, so that these parts are closed up together (referring to Fig. 6 a) when above-mentioned part firmly filled in taper down.This otch can process the 3-8 bar.Note that in Fig. 6 a the edge 32a of adjacent in turn flat tongue can be close to each other at their foot position 32a '.Also can be referring to Fig. 1 and Fig. 2.Above-mentioned edge is in the intersection area 16 or contiguous this position contacts with each other or almost contact each other, and metal closures 36 is filled in the central duct 37 that is formed by closing section then.Though have the intersection in some cases in theory all the time, but still can be manually with handle insertion rod head bottom.Can adopt suitable plastic or powdered-metal plug.Also binding agent that can end portion 30 usefulness of handle are suitable for example epoxy bond so just their complete jam-packs also can be bondd together to socket and internal surface of sleeve pipe.Handle 31 is formed from steel usually.

During assembling, if the stretching out bottom under the intersection 16 of bracketed part, then can be by the method that for example polishes with its equating.

Therefore, handle with have high strength and firmly being connected of bar head, and help with Maximum Practical Load distributed area or position or weight transfer to or drop on the bar head originally on one's body, thereby has maximum sense of touch, and the continuity that keeps socket leading edge 48, and facing to bar head surface leading edge 49, cause be unlikely in the time of should intersecting at 16 places in the junction 50,51 hinder portal 16 crossing.

Usually bar head casting is formed, so that the surface imperfection that forms at the place, chamber, prevent from that handle, at its lower end partly is out of shape and prevents that connecting portion from becoming for the chamber to bend.

In Fig. 8 and Fig. 9, graphite handle 60 is a tubulose, and it constitutes the cylindrical cavity 61 with axis 62.The bottom 60a of handle is in the below on the plane 63 vertical with axis 62, and bottom 60a is tapered towards the 60b bottom of handle.At the handle wall of the side (seeing wall part 64) in above-mentioned chamber handle wall thickness than the opposite side (wall thickness 65 of plane below 63) in chamber.As shown in Figure 9, wall part 65 has the diminishing outer surface 65a towards its end 60b, and the outer surface 64a of wall part 64 parallels to the axis 62.The tapering of the handle surfaces between 65a and the 64a successively decreases from 65a to 64a for axis 62.

Figure 10 shows pack into situation in the receptacle ferrule 66 of midiron 67 of graphite handle.This receptacle ferrule has a cylindrical epicoele 68, to hold the cylindrical handle extension of plane more than 63.This sleeve pipe also has a taper cavity of resorption 70, matches in order to the tapered lower portion 60a with handle.And, the receptacle ferrule bottom also determine one with axis 62 corresponding axis, a side inwall 70a of sleeve pipe bottom dwindles with respect to its axis gradually towards end direction, so that hold and handle conical surface 65a is installed.Another sidewall 73 side direction of sleeve pipe and handle wall surface 64a match, and therefore, the junction of handle surfaces 65a nestles up socket tapered wall 70a.Can adopt binding agent that handle and socket wall are bonded together as epoxy resin and so on.The tapered wall 65 of handle forward, that is to say identical with bar head batting surface 82 directions, the direction of promptly brandishing the bar head.

During assembling, usually that the graphite handle is outstanding 60b bottom polishes, so that form the smooth end 60f of handle as shown in Figure 10, filling member 80 can be filled in the lower end of handle then, so that sealing and seal up this chamber makes the lower surface of bar head smooth smooth simultaneously.Bar head itself can by metal for example steel make.

Figure 11 shows a kind of bar head 110 through remodeling, and wherein pipe handle 111 has been loaded in the sleeve pipe 112 of head component 110a.This bar head comprises heel 113, one tip positions, shape position (not shown), a top bit 114 and position, a bottom 115, and the position, bottom is crooked up at the 115a place, so that coincide with heel shape position.

Sleeve pipe has along the inwall of the direction extension of the axis 116 that is formed by casing cavity 117 or determine, above-mentioned axis usually can with the dead in line of handle.Casing cavity 117 upwards ends at bell 117a place.Sleeve pipe has annular wall portions, and the direction with respect to axis 116 has an angle to this part at adjacent in turn position.For example, annular wall position or the position 118 that extends to down between plane 121 and 122 has less cone angle △ 1 downwards; The annular wall position or the part 119 that extend to down between plane 122 and 123 have a bigger cone angle △ 2 downwards; And annular wall position or part 120 extend between plane 123 and the bar head curved bottom surface 115 down.

As shown in the figure, angle △ 1 tapering (for example being suitable for matching) slightly with the tapering of elongate handle; △ 2 taperings are point, is between 5 °-9 ° with respect to axis 116 for example; And the very little negative tapering of △ 3 is between-1 ° and-3 ° with respect to axis 116 for example.Therefore, for example wall part 118 slightly dwindles down; Wall part 119 dwindles down more suddenly; And wall part 120 slightly enlarges down.The same length of wall part 119 and 120 whole axis, every axis is all short than the axial length of wall part 118 substantially.

Be not difficult to find out that wall part 119 provides a partial eccentricity surface, so that match with handle, at its lower end part 111a; make it as shown in figure 11; at least in part towards axis direction purse up or distortion, thereby handle, at its lower end partly firmly can be inserted in the sleeve pipe, and be close to above-mentioned eccentric surface.It should be noted that against handle, at its lower end 130 places partly of tapered wall part 119 it is sliding relatively zones of joining.Referring to Figure 13, handle, at its lower end part 111a is made of bracketed part or flat tongue 111b-111d usually, and they are separated with intrinsic radian by axially extended otch 131-133.Help making flat tongue to shrink each other like this or draw in the wobbler action power that is applied.To this, see also top description in Fig. 6 to flat tongue and otch.As shown in figure 11, when handle is inserted sleeve pipe down, the jag 111e of handle can be processed into plane 115 and flush, and then swell,, also will describe below this.

Usually, with the mode that swells with handle bottom part cooperate with wall part 120 make handle bottom part 111g be fixed on the correct position of the wall part 120 in chamber.Like this, the handle, at its lower end part of filling in the eccentric wall part 119 in chamber meets the requirements at 111f place very much, that is to say, enlarges down, and simultaneously, handle, at its lower end part 111g cooperates also expansion down with chamber wall part 120.Handle portion 111f and 111g can make handle end be fixed in the sleeve pipe at angle.Referring to Figure 12, as seen, usually can be in the pipe handle of residue section 111g and the local gathering of 111f embedding bottom with one section taper vertical tube 140.Then, can vertical tube be cut away, be milled to plane 155 and flush with handle jag 111e.Before vertical tube is embedded position shown in Figure 12, the liquid adhesive 145 as epoxy resin and so on can be poured in the pipe handle, vertical tube is bonded in the inside of handle so that solidify on the spot.

Another feature is to have a seam to depart from eccentric surface 119 along between centers, so that hold liquid adhesive (for example epoxy resin), it is contacted with the outer surface of handle, at its lower end part and the chamber of bar head, and a wall in the end portion of handle and chamber or many walls solidify and bond together.As annular finedraw is arranged one at 150 places, this seam 121 extends to plane 122 down from the plane, subtracts narrow at the topmost slit 150a of contiguous eccentric chamber wall part 119.In assembling and adhesive cures process, but the liquid adhesive in the slit is the effect of super fatting agent also, so that extrusion handle prejudicially, the end portion of handle is drawn in, the part binding agent flows on 120 down along surface 119, the handle that draws in has been played the additional bonds effect, and handle portion is fixed on chamber wall 119 and 120.

Technique scheme has solved the handle problem loosening with respect to the bar head.

Usually, above-mentioned bar head comprises metal (steel) foundry goods and a handle, metal casting has a definite axis and the receptacle ferrule of chamber wall part is arranged, the end portion of handle is filled in the end of above-mentioned bassoon, the handle, at its lower end part is at least in part towards the axis direction purse up, make it be close to a wall by tip engages, make swelling bottom and extending and be close on another wall of end portion.

Similarly, the method that the formation handle-the bar head connects comprises:

A) casting bar head makes the bar head have a chamber that is taper down and has the tapering of variation;

B) firmly the handle, at its lower end part is inserted down and above-mentionedly had in the chamber that tapering changes, make the local purse up of handle, at its lower end part and be close to conical cavity;

C) the part end portion of purse up that swells makes the handle, at its lower end part fix with the chamber.

Figure 14 shows the situation that above-mentioned principle of the present invention is applied to wood golf club head 210.With representative of identical numbering and identical or corresponding parts described in Figure 11-13, but change their first digit into " 2 " by " 1 " among the figure.It should be noted that the socket 270 in the bar head is between roof 271 and the diapire 272.Socket rear wall 270a is in the heel shape place of bar head.

Claims (17)

1. in a kind of golf clubs of the handle that comprises bar head and definite axis, above-mentioned bar head comprises a heel shape portion, a tip, a top and a bottom, the improvement that handle is linked to each other with the bar head connecting assembly comprise:

A) sleeve pipe that combines with the bar head, this sleeve pipe have the inner wall section of extending along above-mentioned axis direction, and along axis direction in axial adjacent in turn section annular wall portions at an angle to each other, one of them wall part has the partial eccentricity surface;

B) above-mentioned handle has an end portion, can be firmly the end of end portion be inserted in the above-mentioned sleeve pipe, makes end portion at least partly along the axis direction purse up, thereby can firmly handle, at its lower end partly be inserted in the sleeve pipe, and be close to above-mentioned eccentric surface;

C) above-mentioned wall part and handle, at its lower end partly form the slit of departing from eccentric surface vertically, so that hold binding agent, it are partly contacted with handle, at its lower end, and the handle, at its lower end part is solidified with wall spare and bonded together.

2. sub-assembly as claimed in claim 1, wherein above-mentioned wall part comprise that first of this eccentric surface in the qualification is the wall part of taper and second wall part that intersects at an angle with above-mentioned first wall part down.

3. sub-assembly as claimed in claim 2, wherein above-mentioned angle is an obtuse angle on the axial radiator plane that above-mentioned first and second wall parts intersect.

4. sub-assembly as claimed in claim 1, wherein above-mentioned first wall define one and have bigger end and than the frusto-conical surface of small end, this surface dwindles down.

5. sub-assembly as claimed in claim 5, wherein above-mentioned second wall part define one, and what intersect with the bigger end of above-mentioned frusto-conical surface is columniform surface substantially.

6. sub-assembly as claimed in claim 5, wherein above-mentioned wall part comprise the 3rd wall part that intersects than small end with above-mentioned frusto-conical surface.

7. sub-assembly as claimed in claim 6, wherein above-mentioned the 3rd wall part define a surface that enlarges down.

8. sub-assembly as claimed in claim 7, wherein above-mentioned sleeve pipe has an end portion to comprise a vertical tube in above-mentioned end portion, and its effect is the prolongation that descends most of the end portion that is in the adjacent above-mentioned purse up that is roughly the handle in the columniform second surface that swells.

9. sub-assembly as claimed in claim 8 also comprises a filling member that is in the contiguous above-mentioned vertical tube of above-mentioned sleeve pipe end portion.

10. sub-assembly as claimed in claim 7, wherein above-mentioned second surface extend to above-mentioned bar head bottom.

11. sub-assembly as claimed in claim 8, wherein above-mentioned second surface extend to bar head bottom, the prolongation that descends most of the end portion that above-mentioned handle has drawn in comprises the flat tongue that extends along axis direction usually.

12. sub-assembly as claimed in claim 1, wherein above-mentioned handle, at its lower end partly comprise the flat tongue of extension vertically and separated flat tongue around above-mentioned axis.

13. golf clubs that comprises a bar head and a straight-bar, the bar head defines the receptacle ferrule of a definite axis, handle has one to be installed in tube ends and at least in part towards the end portion of axis purse up, cooperation by means of end, make it near an above-mentioned wall part, above-mentioned end portion has the minimum prolongation of being close to another wall part after swelling.

14. golf clubs as claimed in claim 13, wherein above-mentioned handle, at its lower end partly is in the bar head.

15. golf clubs as claimed in claim 1, this bar head is fabricated from iron.

16. golf clubs as claimed in claim 1, this bar head is by wooden one-tenth.

17. form the method that handle-bar head connects, comprising:

A) casting bar head makes the bar head have a chamber that is taper down and has the tapering of variation;

B) firmly the handle, at its lower end part is inserted down in the chamber that tapering changes, made handle, at its lower end part purse up and be close to above-mentioned conical cavity partly;

C) the part end portion of purse up that swells makes the handle, at its lower end part fix with the chamber.

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