JPS5921629B2 - wooden racket - Google Patents

Description

【発明の詳細な説明】 この発明は、木製ラケットの周表面構造に関し、ラケッ
トフレームのフレーム打球部及びスロート部等のガツト
孔貫設部を含む部分の内外内周側最表面に、微小木材片
を集積した薄板を貼設することにより、カット孔による
フレーム打球部、またはスロート部の表面層の木材薄板
の割れの伝播の防止と美観の向上を図るようにしたもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the peripheral surface structure of a wooden racket, and the present invention relates to the peripheral surface structure of a wooden racket. By attaching a thin plate with accumulated wood, it is possible to prevent the propagation of cracks in the thin wood plate on the surface layer of the frame hitting part or throat part due to the cut hole, and to improve the aesthetic appearance.

従来、この種の木製ラケットにおいては、複数枚の積層
単板を所望のラケットフレーム形状に曲成し、該各々の
単板の接着層が打球方向に対する面においてフレーム周
長方向及びシャフト軸方向に筋目状に表われろように積
層し、ガツト孔が貫設されるフレーム打球部及びスロー
ト部のガツト孔貫設方向内外両周側最表面に、木目がフ
レーム周長方向及びシャフト軸方向に沿う一枚の連続し
た薄板を貼設してなる構成を有するものがある。Conventionally, in this type of wooden racket, a plurality of laminated veneers are bent into a desired racket frame shape, and the adhesive layer of each veneer is formed in the circumferential direction of the frame and in the axial direction of the shaft in the plane facing the ball hitting direction. The wood is laminated so that it appears in a lined pattern, and the wood grain is along the circumferential direction of the frame and the axial direction of the shaft on the outermost surface of both the inner and outer circumferential sides in the direction of passage of the gutt hole in the ball hitting part and the throat part of the frame where the gutted hole is penetrated. Some have a structure formed by pasting one continuous thin plate.

このような従来構造のものでは、積層薄板の木目をフレ
ーム周長方向あるいはシャフト軸方向に沿わせることは
、ラケットフレーム全体の強度的問題を解決するために
設計上非常に重要なことである。In such a conventional racket structure, it is very important in design to align the grain of the laminated thin plates along the circumferential direction of the frame or the axial direction of the shaft in order to solve problems regarding the overall strength of the racket frame.

しかしながら、従来のこの種の構造のものでは、特にガ
ツト孔が貫設されるフレーム打球部及びスロート部のガ
ツト孔貫設方向の内外両周側の最表面層を形成する薄板
を、接合なしの連続木材で構成され、かつ該薄板の木目
をフレーム周長方向及びシャフト軸方向に沿わせている
ことから、ガツト孔を貫設する際、ガツト孔の開口周辺
に割れ、パリあるいは欠けが入り易く、機能上、悪影響
を与えない程度のものであっても、長期使用による打球
時の衝撃等でひソ割れを助長し、これによって美観が激
減し、商品価値の著しい低下を招くなど、種々の不都合
があった。However, in this type of conventional structure, the thin plates forming the outermost surface layer on both the inner and outer circumferential sides in the direction in which the gut holes are inserted, especially in the ball hitting part of the frame and the throat part through which the gut holes are inserted, are not bonded. Since it is made of continuous wood and the grain of the thin wood is aligned along the circumferential direction of the frame and the axis of the shaft, it is easy for cracks, cracks, or chips to form around the opening of the gutt hole when inserting the gutt hole through it. Even if the ball does not have any negative effect on its functionality, it can cause various problems such as long-term use, such as the impact caused by impact when hitting the ball, which promotes cracking, which drastically reduces the aesthetic appearance and causes a significant drop in product value. There was an inconvenience.

こＪ〕発明は、上記した従来の種々の欠点を除去するこ
とを目的としたもので、以下、図示の実施例に基づいて
説明する。The present invention is aimed at eliminating the various drawbacks of the prior art described above, and will be explained below based on the illustrated embodiments.

第１図に示すように、図中１はこの発明に係るラケット
フレームで、フレーム打球部２、スロート部３を含むシ
ャフト部４及びグリップ部５とから形成されている。As shown in FIG. 1, numeral 1 in the figure is a racket frame according to the present invention, which is composed of a frame hitting section 2, a shaft section 4 including a throat section 3, and a grip section 5.

このラケットフレームは、第２図に示すように、木目が
フレーム周長方向及びシャフト軸方向に沿う複数枚の薄
板６・・・を重ね合せ積層し、かつ該各々の薄板６・・
・の積層面が打球方向に平行になるように曲成してなる
構成を有するとともに、少なくともガツト孔８が貫設さ
れるフレーム打球部２及びスロート部３を含むフレーム
のガツト孔貫設方向内外両周側最表面１ａ及び１ｂには
、後述する微小木材片からなる集積薄板７がフレーム周
長方向に連続、または必要に応じて商品価値上及び美観
上において目立ち易い部分に部分的に貼設されている。As shown in FIG. 2, this racket frame is made by overlapping and laminating a plurality of thin plates 6 with wood grains along the frame circumferential direction and shaft axial direction, and each of the thin plates 6...
- has a structure in which the laminated surfaces of the frame are curved so as to be parallel to the ball hitting direction, and the frame includes at least the ball hitting part 2 and the throat part 3 through which the gut hole 8 is inserted. On the outermost surfaces 1a and 1b on both circumferential sides, accumulated thin plates 7 made of minute wood pieces, which will be described later, are attached continuously in the frame circumferential direction, or partially attached as necessary in areas that are conspicuous in terms of commercial value and aesthetics. has been done.

また、図中９は上記フレーム打球部２及びスロート部３
の打球面側に貼設した微小木材片からなる集積薄板であ
る。In addition, 9 in the figure indicates the frame ball hitting part 2 and the throat part 3.
This is an integrated thin plate made of tiny pieces of wood that is attached to the ball hitting surface of the ball.

ところで、上記集積薄板Ｉは、厚さ０．５〜２．０間、
好ましくは１．０〜ｌ、５ｒ１１１′ｒＬであり、第３
図に例示するように、例えば長手方向に木目を有する多
数の横断面多角形又は円形の細棒状木材１１を集積接合
して集積体１０を成形し、該集積体１００木口面側で横
断してなるスライス材１０ａを基材として得ろもので、
該細棒状木材１１の太さは、例えば断面正方形のもので
あれば一辺が０．５〜３．０ｍ、断面円形のものであれ
ば０．５〜３． Ｏｒｒｍ’ｌ’程度のものが使用され
る。By the way, the thickness of the integrated thin plate I is between 0.5 and 2.0,
Preferably it is 1.0-1, 5r111'rL, and the third
As illustrated in the figure, for example, a large number of thin rod-shaped timbers 11 having a longitudinal cross-section of polygonal or circular cross sections are joined together to form an aggregate 10, and the aggregate 100 is traversed on the end surface side. It is obtained by using the sliced material 10a as a base material,
The thickness of the thin rod-shaped wood 11 is, for example, 0.5 to 3.0 m on a side if it has a square cross section, and 0.5 to 3.0 m on a side if it has a circular cross section. Something about Orrm'l' is used.

なお、上記実施例においては、集積薄板をフレーム打球
部及びスロート部の打球方向に沿う厚さ方向の全幅面に
亘って貼設したが、ガツト孔を貫設するに充分な程度の
幅でかつガツト孔貫設方向内外両周側面と面一になるよ
うに部分的に貼設してもよい。In the above example, the integrated thin plate was pasted over the entire width of the ball hitting part and the throat part of the frame in the thickness direction along the ball hitting direction. It may be partially attached so as to be flush with both the inner and outer circumferential side surfaces in the direction of penetration of the gut hole.

また、通常のラケットでは、楕円形のフレーム打球部の
短軸からシャフトとは反対側部分の外周面にガツト保護
溝が凹設され、該溝の底にガツトが敷張されるため、ガ
ツト孔のパリ発生等があまり目立たないので、この発明
の微小木材片の集積薄板は、フレーム打球部の短軸から
シャフト側部分に貼設されるのが効果的であり、この部
分のみでも充分な効果を得ろことができろ。In addition, in a normal racket, a gut protection groove is recessed on the outer circumferential surface of the part opposite to the shaft from the short axis of the oval frame ball-hitting part, and the gut is laid at the bottom of the groove, so the gut hole is Since the occurrence of paris is not so noticeable, it is effective to attach the accumulated thin plate of minute wood pieces of the present invention to the shaft side part from the short axis of the ball-hitting part of the frame, and this part alone can have a sufficient effect. You can get it.

したかって、上記の構成によれば、ガツト孔が貫設され
ろフレーム打球部及びスロート部ノカット孔貫設方向内
外両周側最表面に、微小木材片からなる集積薄板を貼設
したことから、ガツト孔の孔明けに際して、ドリル等に
よりフレーム打球部及びスロート部の内外両局側面を切
開いても、割れあるいはパリは、集積薄板を構成する各
々の微小木材片の境界で停止し、それを越して助長する
ことがなく、これによってガツト孔の開口周辺部の割れ
、パリあるいは欠けの発生及び伝播を確実に防止するこ
とができ、美観の向上を図ることができるなど、実用性
にすぐれた効果を奏するものである。Therefore, according to the above configuration, since the integrated thin plate made of minute wood pieces is pasted on the outermost surface of both the inner and outer circumferential sides of the frame ball-hitting part and the throat part in which the gut hole is penetrated in the direction in which the uncut hole is penetrated, When drilling the gut holes, even if you use a drill or the like to cut both the inner and outer sides of the ball hitting part and throat part of the frame, the cracks or cracks will stop at the boundaries of each minute piece of wood that makes up the stacked thin plate and will not go beyond that. As a result, it is possible to reliably prevent the occurrence and propagation of cracks, cracks, or chips around the opening of the gut hole, and improve the aesthetic appearance, which has excellent practical effects. It is something that plays.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明に係る木製ラケットの一実施例を示す
説明図、第２図は、第１図Ａ部における集積薄板を一部
剥離した状態の要部拡大断面斜視図、第３図は集積薄板
の成形状態の一実施例を示す説明図である。 １・・・・・・ラケットフレーム、１ａ、１ｂ・・・・
・・ガツト孔貫設方向周側面、２・・・・・・フレーム
打球部、３・・・・・・スロート音１１に７・・−・・
・集積薄板、８・・・・・・ガツト孔。FIG. 1 is an explanatory diagram showing one embodiment of the wooden racket according to the present invention, FIG. 2 is an enlarged cross-sectional perspective view of the main part of section A in FIG. FIG. 2 is an explanatory diagram showing an example of a molded state of an integrated thin plate. 1... Racket frame, 1a, 1b...
... Circumferential side surface in the direction of gut hole penetration, 2 ... Frame hitting part, 3 ... Throat sound 11, 7 ...
・Integrated thin plate, 8...gut hole.

Claims (1)

【特許請求の範囲】[Claims] １ 木製ラケットフレームのフレーム打球部及びスロー
ト部の内外内周側最表面の少なくとも一部に、微小木材
片の集積薄板を貼設したラケット。1. A racket in which a thin plate made of small pieces of wood is attached to at least a portion of the outermost inner and outer peripheral surfaces of the ball-hitting part and throat part of the wooden racket frame.