JP2011167243A - Grip structure with weight, and golf club - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a golf club by which a weight for adjusting a swing weight can be easily prevented from falling down, the weight can be easily attached and detached and exchanged, and the location of the center of gravity can be stabilized by biasing the center of gravity to a shaft side. <P>SOLUTION: In the grip structure with the weight having the grip section having a weight connecting section including a grip body and an elastically deformable inserting opening arranged at one end of the grip body and the weight section for adjusting the swing weight detachably and fixably attached to the distal end of the grip section, the weight section has a shaft-shape inserting section insertable into the inserting opening and a generally disk-shape end section arranged at one end of the inserting section, the inserting section has a diameter increasing section whose outer diameter gradually increases to the size not less than the opening diameter of the inserting section toward the generally disk-shape end side and an engaging section located at the generally disk-shape end side to the diameter increasing section and engageable with the inserting section, and a step formed between the diameter increasing section and the engaging section, and a boss is arranged in one of opposing faces of the generally disk shape end section and the grip body, and a concave section is arranged in the other of the same. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a grip structure such as a golf club to which a weight is attached, and particularly has a feature in a swing weight fixing structure.

  Conventionally, golf clubs in which a weight (weight or weight) for adjusting a swing weight is fixed to a shaft or a grip by insertion, screwing, or the like have been provided. A golf club provided with a swing weight as disclosed in Patent Document 3 is provided.

  In the golf club disclosed in Patent Document 1, a swing weight adjusting weight is attached to a hosel provided for attaching a club head and a shaft by adhesion. The weight adopted here has a cylindrical main body and a flange portion. The main body is inserted into the shaft, and the flange portion is sandwiched between the end of the shaft and the bottom of the hosel. Thus, the weight is fixed at a position on the tip end side (club head side) of the shaft.

  Further, the golf club disclosed in Patent Document 2 is configured such that a lot of spherical weight materials functioning as weights for weight adjustment can be accommodated in a section provided inside the grip. The swing weight can be adjusted by adjusting the number of materials.

  Further, in the golf club disclosed in Patent Document 3, the vicinity of the sweet spot of the club head of the golf club is missing and the grip side of the golf club where the vicinity of the sweet spot of the club head is missing is gripped from the grip side. A weight having an axis in an intersecting direction with respect to the axis is attached.

Utility Model Registration No. 3018130 Japanese Patent Laid-Open No. 5-220242 JP 2009-136641 A

  When the weight for swing weight adjustment is inserted or fixed with screws as in the conventional golf club described above, the weight is affected by the vibration or inertial force acting on the weight during use. The fixing strength may be lowered due to, for example, the screws fixing the screw gradually loosening. Also, if you continue to use the golf club when the swing weight adjustment weight is not firmly fixed, the weight will fall off and you may lose the weight or be injured by the scattered weight. There was a problem (fixed).

  Further, when the weight is attached to the inside of the hosel as in the golf club described in Patent Document 1, there is a problem that the weight cannot be easily replaced or adjusted. In consideration of launching a hit ball higher, it is desirable to bias the center of gravity toward the shaft side. However, in the configuration disclosed in Patent Document 1, the center of gravity is moved toward the club head side by attaching a weight. There has been a problem that it becomes difficult to launch the hit ball higher (unattachment or replacement).

  Furthermore, when it is set as the structure which accommodates weight material in the division formed in the grip like the golf club currently disclosed by patent document 2, the cap provided in order to block | close the opening part of this division will remove | deviate. Then, there is a possibility that the spherical weight material scatters from the opening portion, resulting in injury or loss of the weight material.

  In addition, in the golf club disclosed in Patent Document 2, there is a possibility that the position of the center of gravity may slightly change depending on how the spherical weight, which is a weight material, is filled. The weight material may move or be unevenly distributed in the compartment provided in the grip, and the position of the center of gravity may change. That is, the golf club disclosed in Patent Document 2 also has a problem from the viewpoint of fixing as in the case of Patent Document 1.

  Therefore, the conventional golf club has a problem that it is difficult to stabilize the position of the center of gravity and the feeling of use is not good. Note that the above Patent Document 3 does not disclose anything about how the weight is specifically attached to the tip on the grip side.

  Therefore, in order to solve the above-described problems, the present invention can mainly prevent the weight for adjusting the swing weight from dropping off, and can reliably stabilize the position of the center of gravity by biasing the center of gravity toward the shaft side. An object of the present invention is to provide a weighted grip structure that can be easily attached and detached and exchanged.

In order to solve the above-described problems, the present invention provides:
A grip portion having a cylindrical grip body, and a weight connection portion including an elastically deformable insertion port provided at one end of the grip body;
A weight part for swing weight adjustment, which is detachably fixed to the tip of the grip part, and
The weight portion includes a shaft-like insertion portion that can be inserted into the insertion port, and a substantially disc-shaped end portion provided at one end of the insertion portion,
The insertion portion has a diameter-enlarged portion that gradually expands toward the substantially disc-shaped end portion until the outer diameter is equal to or larger than the opening diameter of the insertion port, and the substantially disc-shaped end with respect to the enlarged-diameter portion. An engaging portion located on the part side and engageable with the insertion port, and a step formed between the enlarged diameter portion and the engaging portion,
A protrusion provided on one side and a recess provided on the other side of the surface located on the grip portion side of the substantially disk-shaped end portion and the surface located on the substantially disk-shaped end portion side of the grip portion. Having
A weighted grip structure is provided.

  Here, the weight portion only needs to have a function as a weight as a whole, and at least one of the insertion portion and the substantially disk-shaped end portion has a certain weight that can function as a weight. It only has to be. Further, the cross-sectional shape of the shaft-like insertion portion is not necessarily limited, and examples thereof include a substantially circular shape, a substantially elliptical shape, a substantially rectangular shape, and a substantially polygonal shape. From the viewpoint of ease, etc., it is preferably substantially circular. Furthermore, on the surface located on the grip portion side of the substantially disc-shaped end portion and on the surface located on the substantially disc-shaped end portion side of the grip portion, a protrusion provided on one side and a recess provided on the other side As long as the protrusion has a configuration that fits into the recess, the detailed shape of the protrusion and the recess is not particularly limited. For example, the surface of the grip portion that is positioned on the substantially disk-shaped end side may be a surface that is positioned on a part of the grip body of the grip portion, or a part of the weight connection portion of the grip portion. It may be a surface located on the surface.

  According to such a configuration, it is possible to reliably prevent the weight for weight adjustment (weight part) from falling off the grip body, and to bias the center of gravity toward the shaft side and stabilize the position of the center of gravity. In addition, it is possible to realize a grip structure with weight that can easily attach and detach and replace the weight (weight portion) from the grip body.

  And the insertion part of the weight part has an enlarged diameter part that is gradually enlarged toward the substantially disc-shaped end part side to an outer diameter larger than the opening diameter of the insertion opening, and the enlarged diameter part. Since it has an engaging portion that is located substantially on the disc-shaped end side and can be engaged with the insertion port, and a step formed between the enlarged-diameter portion and the engaging portion, the weight When the portion is attached to the weight connection portion of the grip body, the enlarged diameter portion is caught by the insertion port (the enlarged diameter portion is pressed against the inner peripheral portion of the insertion port), and the weight portion is removed from the grip portion. It will not fall off.

  Further, on the surface located on the grip portion side of the substantially disc-shaped end portion and the surface located on the substantially disc-shaped end portion side of the grip portion, provided on one side and on the other side. When the weight portion is attached to the weight connection portion of the grip portion, the protrusion provided on one of the substantially disc-shaped end portion of the weight portion and the grip portion main body is provided on the other portion. The weight portion can be prevented from rotating around the axis of the grip portion. Therefore, according to the present invention, it is possible to more reliably attach the weight portion to the grip portion to stabilize the position of the center of gravity of the golf club more reliably, and to provide a grip structure with a weight excellent in usability. it can.

  In the weighted grip structure of the present invention, it is preferable that the insertion portion has a flange portion at an end opposite to the substantially disc-shaped end (second embodiment).

  The grip structure with weight of the present invention having such a configuration can be held so that it does not fall off when an additional weight prepared separately is attached to the insertion portion.

  Moreover, it is preferable that the grip structure with a weight of the said invention has an additional weight provided so that attachment or detachment was possible between the said enlarged diameter part and the said flange part (2nd embodiment). Here, the weight, shape, and the like of the additional weight can be appropriately selected as long as it can be detachably provided in the insertion portion and can function as an additional weight. From a viewpoint, it is preferable to use a thin plate-like body made of a metal such as lead (for example, a plate weight made of lead used in fishing).

  The weighted grip structure of the present invention having such a configuration can easily and easily increase the weight of the weight portion with an additional weight, and can further adjust the position of the center of gravity (first). Second embodiment).

  In the grip structure with weight of the present invention, the grip body is preferably elastically deformable, and the weight connection portion is preferably harder than the grip body (first embodiment and Second embodiment).

  In the grip structure with weight of the present invention having such a configuration, the insertion port of the weight connection portion is less likely to expand, and the weight portion attached to the grip portion is less likely to drop off.

  The present invention also provides a golf club comprising the weighted grip structure of the present invention (first embodiment and second embodiment).

  According to the present invention, it is possible to reliably prevent the weight for adjusting the swing weight from falling off, to reliably bias the center of gravity to the shaft side and to stabilize the position of the center of gravity, and to attach and detach and replace the weight. A grip structure with a weight that can be easily performed can be provided.

  That is, according to the grip structure with weight of the present invention, it is possible to reliably prevent the weight for adjusting the swing weight from falling off, and to reliably bias the center of gravity toward the shaft side and stabilize the position of the center of gravity. In addition, the weight can be easily attached and detached. In particular, since the center of gravity of the weight part exists on the axis of the grip part, the swing weight can be easily adjusted so that the center of gravity is located at an appropriate balance point. Further, it is possible to provide a golf club or the like that can stabilize the position of the center of gravity, and that is particularly excellent in the feeling of use during a swing.

  More specifically, the weighted grip structure according to the first and second embodiments of the present invention is such that the weight connecting portion provided on the grip body side can be elastically deformed. On the other hand, when a pressing force is further applied to the weight portion in the axial direction of the insertion portion in the state where the insertion portion is inserted, the insertion portion is gradually inserted while the insertion port is pushed and expanded by the enlarged diameter portion. It will be done. Also, when the weight part is pushed in until the engaging part reaches the insertion port beyond the level difference, the opening diameter of the insertion port is restored to the original by the elastic force of the weight connecting part, and the engaging part is firmly attached to the insertion port. Is engaged.

  Therefore, in the grip structure with weights of the first embodiment and the second embodiment of the present invention, the weight portion is firmly fixed only by pushing the weight portion in the axial direction in a state where the insertion portion is inserted into the insertion port. In addition, since the weight portion is attached to the end portion of the grip body, it can be easily adjusted so that the position of the center of gravity arrives at a desired position on the axis of the grip portion, similarly to the grip structure of the present invention described above. can do.

  Furthermore, the weighted grip structure according to the first and second embodiments of the present invention is provided on one of the substantially disc-shaped end portion of the weight portion and the grip body when the weight portion is attached to the grip portion. Since the protrusion fits into the recess provided on the other side, the weight portion can be prevented from rotating around the axis of the grip portion even if the rotational force or inertial force accompanying the swing is applied.

  In the grip structure with weight of the second embodiment of the present invention, the additional weight can be attached to the insertion portion so as not to drop off by providing a flange portion at the end opposite to the substantially disc-shaped end portion side. It becomes possible. The weighted grip structure of the second embodiment of the present invention can adjust the position of the center of gravity more accurately by winding and attaching an additional weight between the enlarged diameter portion and the flange portion. Become.

  Moreover, the weighted grip structure according to the first and second embodiments of the present invention makes it possible to fix the weight portion more firmly by making the weight connection portion harder than the grip body. .

  Since the golf club of the present invention comprises the above-described weighted grip structure of the present invention, it is possible to reliably prevent the weight for adjusting the swing weight from falling off, adjusting the position of the center of gravity, It can be easily attached and detached.

It is a front view which shows the golf club which concerns on 1st embodiment and 2nd embodiment of this invention. It is sectional drawing of the golf club which concerns on 1st embodiment, (a) shows the state before attachment of a weight part, (b) shows the state after attachment of a weight part. It is a principal part expansion perspective view which shows the state before attachment of a weight part in the golf club shown in FIG. It is sectional drawing which shows a weight part. It is sectional drawing which shows the decomposition | disassembly state of the grip part and weight part which concern on the modification of the golf club shown in FIG. It is a schematic perspective view which shows another aspect of the disk shaped part which has an insertion port among weight connection parts. It is sectional drawing of the golf club which concerns on 2nd embodiment, (a) shows the state before attachment of a weight part, (b) shows the state after attachment of a weight part. It is a principal part expansion perspective view which shows the state before attachment of a weight part in the golf club which concerns on 2nd embodiment. It is sectional drawing which shows a weight part. It is a perspective view which shows the attachment method of the additional weight which concerns on a modification. It is a front view which shows the modification of a weight connection part.

  Subsequently, as preferred embodiments of the weighted grip structure of the present invention, golf club embodiments (first and second embodiments) including the weighted grip structure of the present invention will be described with reference to the drawings. However, it explains in detail.

≪First embodiment≫
A golf club 80 according to a first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the golf club 80 has a club head 14 attached to the distal end side of the shaft 12 and a weight portion 84 attached to a grip portion 82 provided on the distal end side. The shaft 12 is constituted by a hollow shaft similar to a conventionally known one, and the club head 14 is constituted by the same one as conventionally known.

  As shown in FIGS. 1 and 2, the grip portion 82 includes a grip body 86 and a weight connection portion 88. The grip body 86 is a hollow and cylindrical portion that is gripped by a user, and the shaft 12 is inserted through an opening provided on one end side. The grip body 86 is made of a polymer material (elastomer) having rubber-like elasticity like rubbers such as natural rubber and synthetic rubber, and has at least radial elasticity.

  As shown in FIGS. 2 and 3, the weight connection portion 88 has a disk shape (or an annular shape) having an insertion port 90 at a substantially center in the radial direction, and covers the end portion of the grip body 86. . The disc-shaped portion 88 a having the insertion port 90 in the weight connection portion 88 is formed of a polymer material (elastomer) having rubber-like elasticity like the grip body 86 described above, and is harder than the grip body 86. It is said that. Therefore, the disk-shaped portion 88a is less likely to deform than the grip body 86, and the inserted weight portion 84 is firmly held. The grip body 86 is formed by forming a disk-shaped part 88a in advance, inserting the disk-shaped part 88a into a mold (insert), and integrally forming the grip part 82 by injection molding. The insertion port 90 is configured by a hole having a substantially circular opening shape, and is a portion into which an insertion portion 94 of a weight portion 84 described in detail later is inserted. Of course, the grip body 86 including the grip portion 82 and the weight connection portion 88 may be integrally formed of the same material without using the disc-shaped portion 88a as a separate member.

  As shown in FIGS. 2 to 4, the weight portion 84 has a substantially disc-shaped end portion 92 and an insertion portion 94. The weight portion 84 functions as a weight for adjusting the swing weight of the golf club 80 as a whole. That is, one of the substantially disk-shaped end portion 92 and the insertion portion 94 may be light and either heavy. The substantially disk-shaped end portion 92 has a disk shape substantially the same diameter as the outer diameter of the weight connection portion 88 of the grip portion 82, and is curved so that the front surface 92a rises gently toward the axial center position. Has a flat shape.

  The insertion portion 94 is an axial portion that is erected substantially perpendicularly to the back surface 92 b at the approximate center of the back surface 92 b of the substantially disk-shaped end portion 92. As shown in FIG. 4, the insertion portion 94 is roughly divided into three portions from the distal end side: a distal end portion 94a, an enlarged diameter portion 94b, and an engaging portion 94c. The distal end portion 94a is an axial portion having an outer diameter equal to or smaller than the opening diameter of the insertion port 90 described above. Therefore, the insertion portion 94 can smoothly insert and remove the distal end portion 94 a with respect to the insertion port 90 provided in the weight connection portion 88.

  The enlarged diameter portion 94b is located between the distal end portion 94a and the engaging portion 94c, and has a tapered shape formed so that the outer diameter increases from the distal end portion 94a side toward the engaging portion 94c side. It has a part. The outer diameter of the enlarged diameter portion 94b is larger than the opening diameter of the insertion port 90 provided in the weight connection portion 88 at the engaging portion 94c side with the axial middle portion of the insertion portion 94 as a boundary. . Therefore, when the weight portion 84 is further pushed in the axial direction in a state where the distal end portion 94a is inserted into the insertion port 90, the weight connection portion 88 is elastically deformed, and the insertion port 90 is pushed and widened by the enlarged diameter portion 94b.

  The engaging portion 94c is located between the proximal end portion of the insertion portion 94, that is, between the enlarged diameter portion 94b and the back surface 92b of the substantially disk-shaped end portion 92, and is provided in the weight connection portion 88 described above. It is a portion that engages with the mouth 90. The outer diameter of the engaging portion 94c is substantially the same as or larger than the opening diameter of the insertion port 90 described above. Therefore, the outer diameter of the insertion part 94 changes significantly at the boundary between the enlarged diameter part 94b and the engaging part 94c, and a step 94d is formed between the two. The axial length of the engaging portion 94c is substantially the same as the thickness of the weight connecting portion 88 described above. Therefore, when the insertion portion 94 is pushed into the insertion port 90 and the engagement portion 94c is engaged with the insertion port 90, the step 94d is caught on the weight connection portion 88, and the back surface 92b of the substantially disc-shaped end portion 92 and the weight The connecting portion 88 is in close contact with each other. Further, when the insertion portion 94 is pushed in until the engagement portion 94c reaches the insertion port 90, the frictional force acting when the diameter-expanded portion 94b passes through the insertion port 90 is released and the engagement portion 94c is engaged. Therefore, a moderate feeling of moderation can be obtained at the time of engagement, and the user can be given a feeling that the weight portion 84 can be firmly fixed. In this embodiment, since the weight connection portion 88 is formed of a material harder than the grip portion 82, the connection strength when the weight portion 84 is connected is high.

  In the golf club 80 of the present embodiment, the grip body 86 is softer than the weight connection portion 88. By inserting a claw or the like between the back surface 92b of the substantially disk-shaped end portion 92 and the weight connecting portion 88, the gap can be expanded relatively easily. Therefore, the golf club 80 of the present embodiment can easily perform not only the attachment of the weight portion 84 but also the operation of removing the weight portion 84 for replacement or the like.

  In the present embodiment, the configuration in which the insertion portion 94 is provided in the center of the weight portion 84 and the insertion port 90 is provided in the center of the weight connection portion 88 is exemplified, but the present invention is not limited to this, It is good also as a structure which provided the insertion part 94 and the insertion port 90 in the position off the center of the weight part 84 or the weight connection part 88. FIG. Moreover, in this embodiment, although the structure which provided each one insertion part 94 and the insertion port 90 was illustrated, for example, as shown to Fig.5 (a), it corresponds to the insertion part 94 and the insertion port 90 It is good also as a structure which provided multiple things to do. By adopting such a configuration, it is possible to further improve the connection strength between the grip portion 82 and the weight portion 84, and the weight portion 84 is a case where the weight of the substantially disk-shaped end portion 92 is large. Also, the weight portion 84 can be prevented from rotating or coming off. In FIG. 5, the disk-shaped portion 88a is omitted.

  The golf club 80 of the present embodiment can align the grip portion 82 and the weight portion 84 by inserting the distal end portion 94a of the insertion portion 94 into the insertion port 90. It is possible to prevent misalignment. In addition, the structure of the above-mentioned insertion part 94 is only what showed an example of this invention, For example, it is good also as a thing which is not provided with the front-end | tip part 94a as shown in FIG.5 (b).

  In the golf club 80 of the present embodiment, the weight connecting portion 88 is formed of an elastomer such as rubber. By attaching the weight portion 84, the back surface 92b of the substantially disk-shaped end portion 92 and the weight connecting portion 88 are substantially omitted. A large frictional force acts on the substantially disk-shaped end portion 92 because it is in close contact. Therefore, the golf club 80 of the present embodiment does not suffer from problems such as the substantially disc-shaped end portion 92 rotating or coming off with a swing or the like.

  In addition, in this embodiment, as shown in FIGS. 3 and 4, the surface of the grip body 86 on the substantially disc-shaped end portion 92 side (that is, the surface of the weight connection portion 88 of the grip body 86). A protrusion 96a is provided on the surface of the substantially disc-shaped end portion 92 on the grip body 86 side (that is, the back surface 92b of the substantially disc-shaped end portion 92), and a recess 96b is provided at a position corresponding to the protrusion 96a. The projection 96a is fitted into the recess 96b. By adopting such a configuration, it is possible to further suppress problems such as the protrusion 96a fitting into the recess 96b by mounting the weight portion 94b, and the weight portion 94b rotating or coming off during a swing. (Note that the protrusion 96a and the concave portion 96 are omitted in FIG. 2 for reasons of drawing production).

  As a modification, as shown in FIG. 5, a configuration is provided in which a projection 96 a is provided on the back surface 92 b of the substantially disk-shaped end portion 92 and a recess 96 b in which the projection 96 a is fitted in a corresponding position of the weight connection portion 88. It is also possible to do. Even with such a configuration, by attaching the weight portion 94b, the protrusion 96a fits into the concave portion 96b, and it is possible to further suppress problems such as the weight portion 94b rotating or coming off during a swing. Is possible.

  The weight part 84 illustrated in the present embodiment has an outer diameter of the enlarged-diameter part 94b continuously increased from the distal end side in the axial direction of the insertion part 94 toward the base end side (weight side). However, the present invention is not limited to this, and may be anything as long as it gradually expands. For example, the outer diameter of the expanded diameter portion 94b may increase stepwise.

  In this embodiment, in order to increase the fixing strength of the weight portion 84, the example in which the weight connection portion 88 of the grip portion 82 is made of a material harder than the grip body 86 is illustrated, but the present invention is not limited to this. Instead, they may have the same hardness. Further, in the present embodiment, the grip body 86 is created by injection molding, and the grip portion 82 is created by integrating with the weight connection portion 88 prepared in advance, but the present invention is limited to this. However, the grip portion 82 may be created by other methods.

  Further, as shown in FIG. 6, for example, a star-shaped portion 88b may be adopted for the disc-shaped portion 88a having the insertion port 90 in the weight connecting portion 88. If such a disk-shaped part having a star-shaped part is adopted (for example, at a ratio of 1 in 10,000), the user may feel lucky and have a positive influence on golf play. Expected and preferable.

<< Second Embodiment >>
Next, the golf club 100 according to the second embodiment of the present invention will be described in detail with reference to the drawings. In addition, about the part which is common in the golf club 80 mentioned above, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  As shown in FIG. 7, the external shape of the golf club 100 of the present embodiment is substantially the same as the golf club 80 of the first embodiment, but the configuration of the grip portion 110 and the weight portion 120 is partially different. Yes. Specifically, as shown in FIG. 7, the grip portion 110 includes a grip body 86 and a weight connection portion 112. The grip body 86 has a hollow and cylindrical shape that is gripped by the user in the same manner as that of the grip portion 82 described above, and is a portion into which the shaft 12 is inserted from an opening provided on one end side.

  As shown in FIGS. 7 and 8, the weight connecting portion 112 covers the end of the grip body 86 and is a portion to which the weight portion 120 is connected. The weight connecting portion 112 of the present embodiment can be formed at the end of the grip body 86 as a resin core member having a disk-shaped portion 88a and a star-shaped portion 88b as shown in FIG. Specifically, the weight connecting portion 112 is prepared in advance with a resin member having a shape as shown in FIG. 6 in the same manner as the weight connecting portion 84 of the first embodiment, and this member is inserted into a mold. It can be formed by (insert) and integrally molding the grip body 86 by injection molding. Of course, the core member as described above may not be prepared as a separate member, and the grip portion 82 including the grip body 86 and the weight connection portion 112 may be integrally formed of the same material. A disk-shaped member that does not have the star-shaped portion 88b may be used as the core member as in the case of the embodiment.

  By molding as described above, the weight connecting portion 112 is formed with a hard portion 114 that is harder than the outer peripheral region at the substantially radial center. Specifically, as shown in FIG. 8, the star-shaped portion 88 b formed in a star shape is exposed at the end of the weight connecting portion 112, and the star-shaped portion 88 b becomes the hard portion 114. Further, an insertion port 90 is provided at the axial center position of the weight connecting portion 112, that is, at the approximate center of the hard portion 114. Therefore, the insertion port 90 is not easily deformed, and the inserted weight portion 120 can be firmly held. The hard portion 114 may have any shape, but in the present embodiment, an appropriate shape such as a star shape as shown in FIGS. 6 and 8 can be used.

  Further, a concave portion 91 is provided on the outer peripheral side of the insertion port 90 in the weight connection portion 112 of the grip body 86. The concave portion 91 is a portion into which a protrusion 124 provided on the weight portion 120 described later is fitted. Therefore, the concave portion 91 can function as a detent for the weight portion 120 in combination with the protrusion 124. Moreover, since the recessed part 91 is provided in the area | region (star-shaped part 88b) of the hard part 114, it is possible to hold | maintain the protrusion 124 firmly. Therefore, even if an impact associated with the swing of the golf club 100 is applied, the weight portion 120 can be reliably prevented from rotating.

  The weight part 120 has substantially the same configuration as the weight part 84 of the first embodiment, but a part thereof is different. Specifically, as shown in FIGS. 7 to 9, the weight portion 120 is provided with a flange portion 122 in the insertion portion 94 in addition to the substantially disk-shaped end portion 92 and the insertion portion 94 similar to those described above. In that the protrusion 124 is provided on the substantially disk-shaped end portion 92 and the additional weight 126 is provided.

  The flange portion 122 is a flange-shaped portion provided at the end portion of the insertion portion 94 on the distal end portion 94a side. The outer diameter of the flange portion 122 is larger than the outer diameter of the distal end portion 94a, and is equal to or less than the opening shape of the insertion port 90 provided on the grip portion 110 side. Therefore, the flange portion 122 can smoothly insert the insertion portion 94 into the insertion port 90 from the distal end portion 94a side.

  The protrusion 124 is provided on the surface of the disc-shaped end portion 92 on the grip body 86 side, that is, the back surface 92b. The protrusion 122 is provided so as to fit into the recess 91 provided in the weight connection portion 112 of the grip portion 110 by connecting the weight portion 120 to the grip portion 110.

  That is, in the present embodiment, the surface of the grip body 86 on the substantially disk-shaped end portion 92 side (that is, the surface of the weight connection portion 112 of the grip body 86, more specifically, the outer periphery of the insertion port 90). A recess 91 is provided on the side of the grip main body 86 of the substantially disc-shaped end portion 92 (that is, the back surface 92b of the approximately disc-shaped end portion 92). A configuration is employed in which the protrusion 124 is fitted into the recess 91. By adopting such a configuration, it is possible to further suppress problems such as the protrusion 124 fitting into the concave portion 91 by mounting the weight portion 120, and the weight portion 120 rotating or coming off during a swing. Is possible

  The additional weight 126 is attached to finely adjust the weight of the weight portion 120. The additional weight 126 in the present embodiment is composed of a lead plate-like body, and is attached by winding around the insertion portion 94 described above. The weight portion 120 can easily adjust the weight as a whole by changing the winding amount of the lead-made plate-like body that forms the additional weight 126. The length, width, and thickness of the lead plate can be selected as appropriate.

  In the additional weight 126 wound around the insertion portion 94, the flange portion 122 provided at the end of the distal end portion 94a functions as a stopper and does not fall off. In addition, an enlarged diameter portion 94b is provided at a position adjacent to the distal end portion 94a. Since the enlarged diameter portion 94b is larger in diameter than the insertion portion 94a, the additional weight 126 does not move from the distal end portion 94a. Therefore, even if the golf club 100 is swung, the center of gravity position does not change with the movement of the additional weight 126.

  In the golf club 100 according to the second embodiment, the weight of the weight portion 120 can be finely adjusted by winding the additional weight 126 around the tip portion 94a of the weight portion 120, so that the weight is more appropriately positioned. The center of gravity can be biased and the swing can be stabilized.

  In addition, the golf club 100 has a fitting structure formed by the concave portion 91 and the protrusion 124 by attaching the weight portion 120 to the grip portion 110, thereby preventing the weight portion 120 from rotating around the axis of the grip portion 110. it can. In the present embodiment, the concave portion 91 is provided on the grip portion 110 side, and the protrusion 124 is provided on the weight portion 120 side. However, the present invention is not limited to this, and the protrusion 124 includes the grip portion. 110 may be provided, and the concave portion 91 may be provided on the weight portion 120 side. Moreover, although the example which provided the recessed part 91 and the protrusion 124 one each was illustrated, many more may be provided.

  In the golf club 100, the weight connecting portion 112 provided at the end of the grip portion 110 is provided with a hard portion 114 that is harder than the other, and the insertion port 90 and the recess 91 are formed in the hard portion 114. Therefore, the grip part 110 can be firmly fixed by inserting the insertion part 94 into the insertion port 90 and engaging the protrusion 124 with the recess 91. In the present embodiment, the configuration in which the hard portion 114 is provided and the insertion portion 116 and the concave portion 91 are formed is illustrated. However, the configuration in which the hard portion 114 is not provided, or either the insertion portion 116 or the concave portion 91 is provided. It is good also as a structure which provided in the position which remove | deviated from the hard part 114. FIG.

  In the weight portion 120 employed in the present embodiment, the substantially disk-shaped end portion 92, the insertion portion 94, and the additional weight portion 126 as a whole function as weights, but all of these configurations are not necessarily weights. As long as at least one of them functions as a weight. That is, any of the substantially disk-shaped end portion 92, the insertion portion 94, and the additional weight portion 126 may be light and heavy.

  In this embodiment, the example which employ | adopted the board | plate body made from lead as the additional weight 126 was illustrated, However, This invention is not limited to this, The weight is increased by adding with respect to the weight part 120. Any shape or structure may be used as long as it is possible. Specifically, the additional weight 126 is a clip-shaped member molded into a substantially “C” cross-sectional shape as shown in FIG. 10, and is inserted by being pushed into the distal end portion 94 a of the insertion portion 94 from the side. You may make it do.

  Although the representative embodiments of the present invention have been described above, various design changes can be made within the scope of the technical idea of the present invention. For example, in the above-described embodiment, the weight portion 84 serves as a substantially disk-shaped end portion (that is, a state in which the weight portion 84 is integrated so as not to be detachable). The weight portion may be detachably integrated. According to such an aspect, it is also possible to appropriately control the weight of the weight portion.

  In the first embodiment and the second embodiment, the example in which the opening shape of the insertion ports 90 and 116 for inserting the insertion portions 94 of the weight connection portions 88 and 112 is circular is illustrated. However, the present invention is not limited to this, and the opening shape may be rectangular as shown in FIG. Even when the opening shape of the insertion ports 90 and 116 is rectangular or the like, the cross-sectional shape of the insertion portion 94 does not necessarily match the opening shape of the insertion ports 90 and 116. In order to make it possible to firmly hold the portions 84 and 120 so as not to rotate, the insertion portion 94 is connected to the insertion openings 90 and 116 in a state where the weight portions 84 and 120 are attached to the grip portions 82 and 110. It is desirable to adjust the opening shape and the like so as to circumscribe.

  The weighted grip structure of the present invention can be applied to all articles having grips such as golf clubs and tennis rackets, and in the article having the weighted grip structure of the present invention, the center of gravity of the weight part is the grip part. Because it exists on the axis of the center, the swing weight can be easily adjusted so that the center of gravity is located at an appropriate balance point, and the center of gravity can be stabilized, so it is particularly useful during swing. An excellent article is obtained.

80, 100 Golf club 82, 110 Grip part 84, 120 Weight part 86 Grip body 88, 112 Weight connection part 90 Insertion port 92 Substantially disc-shaped end part 94 Insertion part 91, 96 Recessed part 122 Flange part 96a, 124 Protrusion 126 Additional weight

Claims (5)

A grip portion having a cylindrical grip body, and a weight connection portion including an elastically deformable insertion port provided at one end of the grip body;
A weight part for swing weight adjustment, which is detachably fixed to the tip of the grip part, and
The weight portion includes a shaft-like insertion portion that can be inserted into the insertion port, and a substantially disc-shaped end portion provided at one end of the insertion portion,
The insertion portion has a diameter-enlarged portion that gradually expands toward the substantially disc-shaped end portion until the outer diameter is equal to or larger than the opening diameter of the insertion port, and the substantially disc-shaped end with respect to the enlarged-diameter portion. An engaging portion located on the part side and engageable with the insertion port, and a step formed between the enlarged diameter portion and the engaging portion,
A protrusion provided on one side and a recess provided on the other side of the surface located on the grip portion side of the substantially disk-shaped end portion and the surface located on the substantially disk-shaped end portion side of the grip portion. Having
A grip structure with weight characterized by The insertion portion has a flange portion at an end opposite to the substantially disc-shaped end portion;
The grip structure with weight according to claim 1. Having an additional weight detachably provided between the enlarged diameter portion and the flange portion of the insertion portion;
The weighted grip structure according to claim 2. The grip body is elastically deformable,
The weight connecting portion is harder than the grip body;
The grip structure with weight according to any one of claims 1 to 3.   A golf club comprising the weighted grip structure according to claim 1.

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