CN101596348B

CN101596348B - Golf club

Info

Publication number: CN101596348B
Application number: CN200810182736XA
Authority: CN
Inventors: 小田勉; 力石利生
Original assignee: Bridgestone Corp
Current assignee: Bridgestone Corp; Bridgestone Sports Co Ltd
Priority date: 2008-06-04
Filing date: 2008-12-04
Publication date: 2012-07-04
Anticipated expiration: 2028-12-04
Also published as: JP4502403B2; JP2009291353A; CN101596348A

Abstract

The present invention provides a golf club capable of preventing sleeve detachment. A neck part is arranged on a golf club head, the upper end part thereof is provided with an inserting hole (4) for a rod part (2); the upper end part of the neck part (1) is connected with a sleeve (3), and the sleeve (3) is provided with an inserting hole (6) for the rod part (2), and the periphery of the inserting hole (6)of the lower end part of the sleeve (3) is provided with a concave part (7) of which the diameter is more than that of the inserting hole (6), the adhesive for adhering the rod part (2) to the neck part (1) flows from the neck part (1), and flows into the concave part of the sleeve, thereby adhering the sleeve (3) to the neck part (1) and the rod part (2).

Description

Golf clubs

Technical field

The present invention relates to a kind of golf clubs, the mounting structure that especially relates to neck, bar portion and sleeve for glof club head is improved golf clubs in addition.

Background technology

For the golf clubs in the most prior art, glof club head is provided with the neck of mounting rod portion, and in the neck upper end sleeve is installed.This sleeve is resin system (celluloid etc.), is installed to bar portion and neck upper end, and it mainly acts on is to hide the bonding agent that overflows from the neck upper end, makes the adhesion stationary state of bar portion and neck be difficult for seeing from the outside, just plays the effect that beautifies.

There is following a kind of sleeve in the prior art, uses this sleeve,, also can obtain being suitable for golfer's the balance that swings even change bar portion, and, the characteristic value (referring to patent document 1) of glof club head can not changed.Above-mentioned sleeve forms the inner peripheral surface that contacts with bar portion at resinous inner core place, be wholely set the multiple metal urceolus that varies in weight in this inner core outside, and the player can select to have the sleeve of the weight consistent with its desired balance that swings that obtains.

The open communique spy of [patent document 1] Japanese patent of invention opens flat 9-75484

The installation of the neck of record, bar portion, sleeve in patent document 1 both can form external screw thread through the tip side at neck, at the fitting portion formation internal thread of sleeve and with the two threaded engagement, also can adopt simple inside and outside convex-concave chimeric.Bar portion and resinous sleeve inner core can be bonding by bonding agent, also can not use bonding agent.In addition, realize the fixing of neck and bar portion through bonding agent.

When with golf clubs square stance repeatedly, bar portion repeated vibrations, sleeve can break away from from neck, or breakage etc. takes place.In addition, when fixedly carrying out the installation of neck and sleeve, need spend into original machining screw, so recently, major part does not form screw thread on the sleeve of golf clubs, but makes sleeve through injection-molded moulding, to reduce cost through screw thread.When adopting screw thread fixedly, sleeve rotates because of vibration, and it possibly move and break away from neck to rotational direction, also possibly produce breakage because of the wall thickness attenuation.

Summary of the invention

Therefore, the object of the present invention is to provide a kind ofly can form sleeve at low cost, and prevent that hub being mounted breaks away from and damaged golf clubs takes place from neck behind the neck.

In order to achieve the above object, the structure of golf clubs of the present invention is following, and neck is set on the glof club head; Be formed with bar portion patchhole on it; The upper end of neck is connected and installed with sleeve, on sleeve, is formed with the patchhole of bar portion, is formed with the recess bigger than this patchhole diameter in the periphery of the patchhole of sleeve bottom; The bonding agent that bar portion is bonded to neck flows out from neck, flows into the recess of sleeve and sleeve is bonded to neck and bar portion.In addition,, on neck, also form recess except forming the recess on the sleeve, the flexible body of card in the formed space of the recess of neck, the recess at sleeve is provided with bonding agent simultaneously.

Adopt the present invention; Neck is set on the glof club head, is formed with bar portion patchhole on it, and the upper end of neck is connected and installed with sleeve; On sleeve, be formed with the patchhole of bar portion; Periphery at the patchhole of sleeve bottom is formed with the recess bigger than this patchhole diameter, and the bonding agent that bar portion is bonded to neck flows out from neck, flows into the recess of sleeve and sleeve is bonded to above-mentioned neck and above-mentioned bar portion.Because be aforesaid structure,, form sleeve with less cost so, can prevent that also sleeve breaks away from from neck even do not adopt the mode that is threaded to come branch sleeve and neck.In addition, through on neck, forming recess, and in the formed space of this recess the flexible body of card; And on the recess of sleeve, bonding agent is set, can eliminate the negative effect that the vibration of bar portion is brought, for example; Can prevent that sleeve breaks away from, and make sleeve be difficult for producing damaged.Exploitation by the high resiliency carbon fibre; Recent carbon element bar mostly is thin-walled, light weight beam; And have enough flexiblely, but also just because of this, produce damaged probability at bar portion and neck joint place and increased; So, can also prevent the generation that stopping bar portion is damaged through the flexible body of card in the recess of neck.

Description of drawings

What Fig. 1 represented is the profile of preferred implementation of the present invention.

What Fig. 2 represented is the half-sectional view of neck.

What Fig. 3 represented is the vertical view of neck.

What Fig. 4 represented is the half-sectional view of sleeve.

What Fig. 5 represented is the half-sectional view of the remodeling embodiment of sleeve.

Fig. 6 representes the half-sectional view of other embodiments.

[symbol description]

1: neck, 2: bar portion, 3: sleeve, 4,6: patchhole, 7: recess.

The specific embodiment

Below, with reference to accompanying drawing embodiment of the present invention is described.

What Fig. 1 represented is the profile of the state after neck 1, bar portion 2 and sleeve 3 installations, and the glof club head of not expressing among neck 1 and the figure is integrally formed.Be formed with the patchhole 4 of bar portion 2 on the neck 1, its upper end is formed with the periphery that is positioned at patchhole 4, than the big dish-shaped recess 5 of patchhole 4.Be formed with the patchhole 6 of bar portion 2 on the sleeve 3, its bottom is formed with the periphery that is positioned at patchhole 6, than the big recess 7 of patchhole 6, also is formed with the groove 7A of bamboo hat shape in the lower end of recess 7, and the inner peripheral surface of groove 7A is formed conical surface 7B.Compare recess 7, the diameter of this groove 7A has been enlarged, and the bonding agent that will narrate of back also can flow in the space that comprises conical surface 7B that this diameter enlarged.The degree of depth h of the big 0.5～1.5mm of radius of the radius ratio patchhole 6 of the recess 7 of above-mentioned sleeve 3 (label t among the figure), recess 7 is 2～3mm, and the total length of sleeve 3 is more than 10mm.Especially, when adopting length to be the short sleeve 3 of 10～16mm,, adopt said structure particularly effective with bar portion 2 for fixed muffle 3 because the contact area of bonding agent and sleeve 3 and bar portion 2 is little.

Fig. 2 and Fig. 3 are the half-sectional view and the vertical view of expression neck 1 in detail; In this embodiment; The outer circumference end of recess 5 is formed

planar portions

5A, and 5A forms conical surface 5B to the inside from this planar portions, and it is 30 ° inclination angle that this conical surface 5B has central axis angle with neck 1.Inboard one end of this conical surface 5B is the smooth curved surface of no corner angle.

Fig. 4 is a half-sectional view of representing sleeve 3 in detail.In this embodiment, the lower end of recess 7 is formed with the groove 7A of larger diameter, and the inner peripheral surface of this groove 7A forms conical surface 7B.Since needn't form screw thread as on the sleeve 3 of above-mentioned structure, thus can make sleeve 3 through the injection-molded moulding of resin, thereby make simple, with low cost.Especially, the diameter of patchhole 6, recess 7 and groove 7A differs from one another, and wherein, the diameter of patchhole 6 is minimum, and recess 7 takes second place, and the diameter of groove 7A is maximum, so, can begin the moulding article of taper are extracted from mould swimmingly from tip side.

What Fig. 5 represented is under the recess 7 of sleeve 3 is formed with, to dig portion.Even the following portion 70 of digging shown in the formation figure, owing to moulding article (sleeve 3) from having pliability, so can carry out the demoulding as resin system.

What Fig. 6 represented is other a kind of embodiment; In this embodiment; Lower end at the dish-shaped recess 5 that is formed at above-mentioned neck 1 upper end is formed with groove 50; This groove 50 is identical with the recess 7 of above-mentioned sleeve 3, and card has the elastomer of being processed by rubber, foaming body etc. 8 in the space that groove 50 forms, and this elastomer 8 is connected with bar portion 2.Be used in this embodiment the bonding agent that bar portion 2 is fixed on the neck 1 is also overflowed from neck 1, flow into elastomer 8 places and make itself and bar portion 2 bonding, and at least also bonding agent 9 is set at recess 7 places of sleeve 3.Also can bonding agent 9 be set at the groove 7A beyond the recess 7.In addition, also can on neck 1, not form the recess 5 of dish.

In embodiment as shown in Figure 1; Though the recess 7 that on not forming on the neck 1, forms like sleeve 3; But can be formed with same groove 50 as shown in Figure 6, and in recess 7, groove 50, the formed space of groove 7A, be packed into bonding agent and replace elastomer 8.

Though on above-mentioned sleeve 3, be formed with groove 7A and conical surface 7B, also can not form groove 7A and conical surface 7B, only form recess 7 in sleeve 3 bottoms.If groove 7A and conical surface 7B are set, then bonding agent increases with the contact area of sleeve 3 and neck 1 at this place, can prevent that sleeve 3 breaks away from neck 1.Expanding the purpose that forms tapered recess 5 laterally at the inner peripheral surface of neck 1 is to make bar portion 2 to be inserted swimmingly.

Above-mentioned neck 1 is integrally formed with glof club head, by with the glof club head identical materials for example titanium alloy process, sleeve 3 is molded by thermoplastic injection such as for example celluloids.In addition, bar portion 2 not only can adopt fiber-reinforced resin to process (carbon element bar portion), also can adopt steel to process.

Claims

1. golf clubs is characterized in that:

Neck is set on the glof club head; Be formed with bar portion patchhole on it, the upper end of said neck is connected and installed with sleeve, on said sleeve, is formed with bar portion patchhole; Periphery at the patchhole of the bottom of said sleeve is formed with than the big recess of said patchhole diameter

Dig portion under being formed with on the recess of said sleeve,

Below said recess, form the groove of the diameter bamboo hat shape bigger than this recess,

The inner peripheral surface of said groove contacts with the upper end periphery of said neck,

The bonding agent that said bar portion is bonded to said neck flows out from said neck, flows into the recess of said sleeve, and under dig and also be provided with bonding agent in portion, the groove, thereby said sleeve is bonded to said neck and said bar portion.

2. golf clubs as claimed in claim 1; It is characterized in that: neck is set on the glof club head, is formed with bar portion patchhole on it, in the upper end of said neck; Periphery in said patchhole is formed with than the big recess of said patchhole diameter, has bonding agent in this recess.

3. golf clubs as claimed in claim 2 is characterized in that: by having elastomer in the formed space of recess, the part that has this elastomeric this recess has bonding agent in said neck.

4. golf clubs is characterized in that:

The upper end of neck is connected and installed with sleeve, on said sleeve, is formed with bar portion patchhole, in the bottom of said sleeve, be formed with than the big recess of said patchhole diameter in the periphery of patchhole,

Neck is set on the glof club head; Be formed with bar portion patchhole on it; Be formed with dish-shaped recess in the upper end of said neck, below this dish recess, be formed with the groove identical, in the groove of this neck, be provided with and be also used as elastomeric bonding agent with the recess of said sleeve.

5. golf clubs as claimed in claim 4 is characterized in that: on said sleeve, be formed with the groove that the recess that forms with its bottom links to each other and diameter increases, this groove has the conical surface.