JP3186649U - Grip member - Google Patents

Abstract

A grip member that does not use an adhesive layer or a double-sided tape is provided.
A grip member 4 attached to a grip connecting portion of a shaft that is tubular has an insertion space 401 extending in the axial direction, and an inner diameter thereof is larger than an outer diameter of a grip connecting portion 22 of the shaft. A small circumferential wall 42, a lid 41 with a through hole in which one end of the circumferential wall is closed and communicated with the insertion space, and a through hole 402 is formed through which gas can be injected into the insertion space; In addition to extending in the axial direction from the inner surface of the attached lid into the insertion space, it has a communication hole 430 that allows the through hole and the insertion space to communicate with each other, and is spaced apart from the circumferential wall and between the circumferential wall A tubular projection 43 arranged so as to form an annular gap for accommodating the grip connection portion, and the circumferential wall, the lid with a through hole, and the tubular projection are all made of an elastic material, The peripheral wall injects gas into the insertion space It is configured to be inflated by.
[Selection] Figure 3

Description

The present invention relates to a grip member in various grip-equipped articles.

An article with a grip refers to an article that has a grip member and can be used with a grip member. The article with a grip according to the present invention has a shaft interposed between the body of the article and the grip member. For example, a sickle, a file, a knife, a lion, a golf club, and the like can be used. Hereinafter, only a golf club will be described as an example.

Conventionally, as a method of attaching a grip member to a shaft, first, for example, a foam containing a moisture and a surfactant is filled in a hollow portion of the grip member by a foam filling step, and then a water-soluble adhesive layer is used. Moisture contained in the foam in the grip member after the water-soluble adhesive layer is laid on the insertion end surface of the shaft by the laying step, and then inserted into the grip member by the grip member insertion step. Thus, the water-soluble adhesive layer on the surface of the shaft is made viscous and dried. A method of bonding the grip member and the shaft and a grip member manufactured using the method are disclosed in Patent Document 1, in particular.

JP 2008-104710 A

However, since the conventional grip member produced by the water-soluble adhesive layer laying process uses a method of winding a double-sided tape with a water-soluble adhesive layer around a club shaft, the winding process and the adhesive layer are used. Doing so increases the manufacturing cost of the grip member and is not ideal in the industry.

In order to solve the above problems, an object of the present invention is to provide a grip member that does not use an adhesive layer or a double-sided tape.

In order to achieve the above object, the present invention is a grip member attached to a grip connecting portion of a shaft that is tubular, and has an insertion space formed by extending in the axial direction, and its inner diameter is the grip of the shaft. A circumferential wall smaller than the outer diameter of the connecting portion, and a through hole that closes one end of the circumferential wall and communicates with the insertion space and through which gas can be injected into the insertion space are formed. A through hole lid, a communication hole extending in the axial direction from the inner surface of the through hole lid into the insertion space, and communicating the through hole with the insertion space; and A tubular protrusion arranged and configured to be spaced apart from the circumferential wall and to form an annular gap for accommodating the grip connection portion between the circumferential wall, the circumferential wall, The through hole lid, and the tubular projection Shift be made of an elastic material, wherein the circumferential wall to provide a gripping member that is configured to be inflated by injecting gas into said insertion space.

The present invention is also a grip member to be attached to the grip connection portion of the shaft, which extends in the axial direction to form an insertion space, and whose inner diameter is smaller than the outer diameter of the grip connection portion of the shaft. And a lid with a through hole that closes one end of the circumferential wall and communicates with the insertion space, and through which a gas can be injected into the insertion space. In addition to extending in the axial direction from the inner surface of the lid with a hole into the insertion space, the communication hole has a communication hole for communicating the through hole and the insertion space, and is separated from the circumferential wall, A tubular protrusion arranged so as to form an annular gap for accommodating the grip connecting portion between the circumferential wall and the circumferential wall, and the circumferential wall has the axial direction toward the axial direction. Radially penetrates the inner and outer surfaces of the circumferential wall A plurality of pinholes that are in the same plane in the radial direction are radially spaced from each other, and the circumferential wall, the lid with a through hole, and the tubular protrusion are made of an elastic material The circumferential wall also provides a grip member configured to be inflated by injecting gas into the insertion space.

The present invention is also a grip member to be attached to the grip connection portion of the shaft, which extends in the axial direction to form an insertion space, and whose inner diameter is smaller than the outer diameter of the grip connection portion of the shaft. And a lid with a through hole that closes one end of the circumferential wall and communicates with the insertion space, and is formed with a through hole through which gas can be injected into the insertion space. The circumferential wall is provided with a plurality of pinholes that radially penetrate the inner and outer surfaces of the circumferential wall in the axial direction, and the plurality of pinholes on the same radial plane are mutually radial. The circumferential wall and the lid with the through hole are made of an elastic material, and the circumferential wall is configured to be inflated by injecting gas into the insertion space. Also it provides a gripping member there.

Examples of the article with a grip include a work tool such as a sickle and a file, a kitchen tool such as a kitchen knife and an insulator, and an exercise tool such as a golf club.

According to the device related to the grip member, the grip connection portion of the shaft can be moved into the insertion space of the grip member expanded by the gas, and the expanded circumferential wall can be contracted to hold the grip connection portion. Even if the adhesive layer or the double-sided tape is not used, the grip member can be firmly attached to the shaft, and the attachment process is very simple, so the industrial utility value is very high.

It is a flowchart figure of the method of attaching the grip member in the goods with a grip in the 1st Embodiment of this invention to a shaft. It is a figure which shows the 1st Embodiment grip member and shaft in this invention. It is sectional drawing of the grip member and shaft which were prepared for the said 1st Embodiment shown in FIG. It is a figure which shows that the grip connection part of a golf club shaft closes the end of a grip member. It is a figure which shows expanding the circumferential wall of a grip member by the injection process of gas. It is a figure which shows 1st Embodiment in the state in which the grip connection part was clamped between the circumferential wall and the tubular protrusion. It is the elements on larger scale which show that the thin film layer of a lubrication substance is formed between the circumference wall and the grip connection part. It is a figure which shows the cross section of the state by which the grip connection part was clamped between the circumferential wall and the tubular protrusion after the lubricating substance was vaporized. It is a figure which shows the cross section of the grip member prepared for 2nd Embodiment of this invention. It is a figure which shows the cross section of the grip member prepared for 3rd Embodiment of this invention. The figure which shows the cross section of the grip member of FIG.

In the following, a golf club is taken as an example of an article with a grip according to the present invention. That is, the following grip member refers to a grip member in a golf club, and the shaft extending from the grip member refers to a club shaft.

First, looking at the flowchart in FIG. 1, the grip member in the first embodiment of the present invention includes, for example, a grip member and shaft preparation step (A), a lubricating material application step (B), and a gas. Injection process (C), shaft movement process (D), grip member contraction process (E), and lubricant vaporization process (F).

Next, the grip member of the present invention will be described.

Please refer to FIG. Reference numerals 2 and 4 are a shaft and a grip member, respectively. Since the present invention will be described by taking a golf club as an example, the reference numeral 3 indicates a golf club head.

As shown in FIG. 3, the shaft 2 is a tubular body (in the form of a conventional golf club shaft) having a grip connection portion first end 20 and a grip connection portion second end 21, and is adjacent to the grip connection portion 22. The grip connection portion first end 20 is an internal fitting opening 220, and the grip connection portion second end 21 opposite to the grip connection portion 22 is connected to the golf club head 3.

The grip member 4 includes a through hole lid 41, a circumferential wall 42, and a tubular protrusion 43. The circumferential wall 42 extends in the axial direction to form an insertion space 401. The inner diameter S1 of the circumferential wall 42 is usually smaller than the outer diameter R1 of the grip connecting portion 22. Further, the circumferential wall 42 has a circumferential wall first end 422 and a circumferential wall second end 423, the circumferential wall first end 422 forms an opening 421 as an inlet of the insertion space 401, and the circumferential wall second end 423 passes through. The lid 41 with holes is closed. The thickness of the circumferential wall 42 is gradually increased from the circumferential wall first end 422 having the opening 421 to the circumferential wall second end 423 adjacent to the cover 41 with the through hole. The through-hole 402 of the lid 41 with the through-hole communicates with the insertion space 401, and gas can be injected into the insertion space 401 through it.

The tubular protrusion 43 has a communication hole 430 that extends coaxially with the circumferential wall 42 in the insertion space 401 from the inner surface of the cover 41 with a through hole, and communicates the insertion space 401 with the through hole 402. Further, the tubular protrusion 43 is separated from the circumferential wall 42, and an annular gap 403 for accommodating the grip connecting portion 22 is formed between the tubular projection 43 and the circumferential wall 42.

The outer diameter L2 of the tubular protrusion 43 is larger than the inner diameter R2 of the grip connecting portion 22. Further, the tubular projection 43 has a free end 431 that is separated from the through hole lid 41 and a connection end 432 that is connected to the through hole lid 41. The free end 431 of the tubular protrusion 43 is tapered, and the outer diameter L1 thereof is smaller than the inner diameter R2 of the grip connection portion 22. The tubular projection 43 can be elastically deformed and can be fitted into the grip connection portion 22 via the inner fitting opening 220.

The length of the tubular protrusion 43 is preferably in the range of 1/10 to 1/2 of the length of the circumferential wall 42. In the present embodiment, the length of the tubular protrusion is ½ of the length of the circumferential wall 42.

The lid 41 with a through hole, the circumferential wall 42, and the tubular protrusion 43 are all made of an elastic material. The circumferential wall 42 is configured to be expanded by injecting gas into the insertion space 401. The through-hole cover 41 and the circumferential wall 42 in the present embodiment are made of rubber. Further, in the present embodiment, the tubular protrusion 43 is made of polyurethane, but may be made of other materials (for example, thermoplastic polyurethane) as long as it is more easily deformable than the lid 41 with a through hole and the circumferential wall 42.

In this embodiment, the inner wall surface of the circumferential wall 42 is processed to be smooth, and the surface of the grip connecting portion 22 in the shaft 2 is also smoothed by electroplating.

The grip member of the present invention is performed by attaching the lubricant 6 to the outer surface of the grip connection portion 22 before moving the grip connection portion 22 to the insertion space 401 (see FIG. 4). In the present embodiment, water is used as the lubricating material 6, but other liquids that can be vaporized at room temperature, such as ethanol, may be used.

As shown in FIG. 4, the opening 421 in the first circumferential wall first end 422 of the circumferential wall 42 is enlarged, the grip connecting part 22 closes the opening 421, and the grip connecting part opposite to the grip connecting part 22 of the shaft 2. This is performed after confirming that the second end 21 is closed. In the present embodiment, the grip connecting portion second end 21 of the shaft 2 is closed by connecting to the golf club head 3 as shown in the figure, but may be closed using other padding (not shown).

Thereafter, the circumferential wall 42 is inflated by injecting gas into the insertion space 401 of the grip member 4 through the through hole 402 of the through hole lid 41. Thereby, as shown in FIG. 5, the inner diameter S <b> 1 (see FIG. 3) of the circumferential wall 42 is larger than the outer diameter R <b> 1 (see FIG. 3) of the grip connection portion 22.

The grip member in this embodiment uses high-pressure air as an injection gas, and the injected gas naturally enters the shaft 2, but the golf club head 3 is attached to the grip connection portion second end 21 of the shaft 2. So there is no risk of gas leakage.

Next, the grip connecting part 22 is moved to a predetermined position in the expanded circumferential wall 42. This movement of the shaft is performed, for example, by pressing one of the shaft 2 and the grip member 4 against the other.

As shown in FIG. 6, the “predetermined position” in this embodiment is such that the grip connecting portion 22 of the shaft 2 reaches the inner surface of the cover 41 with the through hole, and the tubular protrusion 43 is completely inside the grip connecting portion 22. This is the position to fit. That is, at this position, the grip connection portion 22 is accommodated in an annular gap 403 between the circumferential wall 42 and the tubular protrusion 43.

Further, the tapered free end 431 of the tubular protrusion 43 has an outer diameter L1 (see FIG. 3) smaller than an inner diameter R2 (see FIG. 3) of the grip connecting portion 22, so that the shaft 2 is moved to the insertion space 401. It can be easily inserted into the grip connection portion 22. The tubular protrusion 43 has an outer diameter L2 (see FIG. 3) that is slightly larger than the inner diameter R2 of the grip connection part 22, but can be fitted into the grip connection part 22 if it is elastically deformed by pressing. Therefore, the tubular protrusion 43 should have a certain degree of elasticity so that the resistance when moving the grip connecting portion 22 is reduced.

Moreover, the circumferential wall 42 should be able to be expanded by the pressure of the gas and should have an elastic effect by having a necessary thickness. That is, the circumferential wall 42 can expand with a predetermined elasticity, and can return to its original shape. In this embodiment, the tubular protrusion 43 has elasticity superior to that of the circumferential wall 42.

Next, the expanded circumferential wall 42 is contracted to hold the grip connection portion 22. When the grip connecting portion 22 is in the insertion space 401, the gas injection is stopped and the through hole 402 of the cover 41 with the through hole is opened. Further, as shown in FIG. 7, a thin film layer of the lubricating material 6 is formed between the circumferential wall 42 and the grip connection portion 22 so that the grip member 4 can rotate around the shaft 2. At this time, the circumferential wall 42 contracts inward as indicated by an arrow, and the tubular protrusion 43 expands so as to return to the original position as indicated by an arrow. Therefore, the grip connecting portion 22 is sandwiched between the circumferential wall 42 and the tubular protrusion 43.

Next, the lubricating material 6 is vaporized and discharged from the insertion space 401 to dry the grip connecting portion 22.

The lubricating material 6 may be vaporized by leaving the entire golf club at room temperature (room temperature) until the lubricating material 6 is naturally vaporized and waiting for drying, or heating may accelerate the drying.

In addition, the inner surface of the circumferential wall 42 and the outer surface of the grip connecting portion 22 are smooth, and after the lubricating material 6 has completely evaporated, there is no gap between the circumferential wall 42 and the grip connecting portion 22, and the grip Since the outer diameter R1 (see FIG. 3) of the connection portion 22 is larger than the inner diameter S1 (see FIG. 3) before insertion of the circumferential wall 42, the grip member 4 can firmly hold the grip connection portion 22. Therefore, the grip member 4 can be firmly attached to the grip connection portion 22 without using an adhesive layer or a double-sided tape.

Next, a second embodiment will be described.

The golf club is also used as an example for attaching the grip member of the second embodiment to the grip connecting portion of the shaft. Among them, the length of the tubular protrusion 43 in the grip member 4 was set to 1/10 of the length of the circumferential wall 42 (see FIG. 9).

In the present embodiment, since the length of the tubular protrusion 43 in the grip member 4 is shorter than that in the first embodiment, the lid 41 with a through hole, the circumferential wall 42 and the tubular protrusion 43 in the grip member 4 are integrally molded. Cheap. Of course, the lid 41 with the through hole, the circumferential wall 42, and the tubular protrusion 43 are not limited to being integrally formed from the beginning. For example, when the appearance of the grip member 4 is to be improved, the lid 41 with the through hole and the circular projection 43 are formed. The peripheral wall 42 may be formed of materials having different colors and molded separately and then integrally formed.

Next, a third embodiment will be described.

A golf club is also used as an example to attach the grip member of the third embodiment to the grip connecting portion of the shaft. The circumferential wall 42 of the grip member 4 is provided with a plurality of pinholes 424 passing through the inner and outer surfaces of the circumferential wall 42 in the radial direction in the axial direction, and the plurality of pinholes 424 in the same plane in the radial direction are provided. They are radially spaced from one another. When performing a gas injection process or the like, gas leakage from the plurality of pinholes 424 can alleviate excessive expansion due to gas injection into the insertion space 401 of the circumferential wall 42 and easily discharge the liquid as the lubricant 6. (See FIGS. 10 and 11).

As described above, according to the grip member in the article with a grip of the present invention, the grip connecting portion of the shaft is moved into the insertion space of the grip member expanded by the gas and the expanded circumferential wall is contracted by leaking the gas. Is firmly attached to the shaft, so there is no need to use an adhesive layer, and there is no need to wrap double-sided tape.

DESCRIPTION OF SYMBOLS 2 ... Shaft 20 ... Grip connection part 1st end 21 ... Grip connection part 2nd end 22 ... Grip connection part 220 ... Inner fitting opening 3 ... Golf club head 4 ... Grip member 401 ... Insertion space 402 ... Through-hole 403 ... Ring-shaped Gap 41 ... Cover with hole 42 ... Circumferential wall 421 ... Opening 422 ... Circumferential wall first end 423 ... Circumferential wall second end 424 ... Pin hole 43 ... Tubular protrusion 430 ... Communication hole 431 ... Free end 432 ... Connection end 6 ... Lubricating substances L1, L2, R1 ... outer diameter R2, S1 ... inner diameter

Claims (7)

A grip member attached to a grip connecting portion of a tubular shaft,
A circumferential wall that extends in the axial direction to form an insertion space and whose inner diameter is smaller than the outer diameter of the grip connecting portion of the shaft;
A lid with a through hole that closes one end of the circumferential wall and communicates with the insertion space, and is formed with a through hole through which gas can be injected into the insertion space;
In addition to extending in the axial direction from the inner surface of the lid with the through hole into the insertion space, the communication hole has a communication hole for communicating the through hole and the insertion space, and is spaced apart from the circumferential wall. A tubular projection arranged and configured so that an annular gap is formed between the circumferential wall and the grip connecting portion.
The circumferential wall, the through-hole lid, and the tubular projection are all made of an elastic material, and the circumferential wall is configured to be inflated by injecting gas into the insertion space. A grip member characterized by The grip member according to claim 1, wherein an outer diameter of the tubular protrusion is larger than an inner diameter of the grip connection portion. The grip member according to claim 2, wherein the tubular protrusion has a tapered free end that is separated from the through hole lid. The grip member according to any one of claims 1 to 3, wherein a length of the tubular protrusion is in a range of 1/10 to 1/2 of a length of the circumferential wall. The grip member according to any one of claims 1 to 4, wherein the circumferential wall and the lid with the through hole are made of rubber, and the tubular protrusion is made of polyurethane. The circumferential wall is provided with a plurality of pinholes that radially penetrate the inner and outer surfaces of the circumferential wall in the axial direction, and the plurality of pinholes on the same plane in the radial direction are radially separated from each other. The grip member according to any one of claims 1 to 5, wherein the grip member is provided. A grip member attached to the grip connection portion of the shaft,
A circumferential wall that extends in the axial direction to form an insertion space and whose inner diameter is smaller than the outer diameter of the grip connecting portion of the shaft;
A lid with a through hole that closes one end of the circumferential wall and communicates with the insertion space, and is formed with a through hole through which gas can be injected into the insertion space. ,
The circumferential wall is provided with a plurality of pinholes that radially penetrate the inner and outer surfaces of the circumferential wall in the axial direction, and the plurality of pinholes on the same plane in the radial direction are radially separated from each other. And
The grip is characterized in that the circumferential wall and the lid with a through hole are made of an elastic material, and the circumferential wall is configured to be inflated by injecting gas into the insertion space. Element.

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