JP2002021870A - Tightening nut - Google Patents

Tightening nut

Info

Publication number
JP2002021870A
JP2002021870A JP2000207228A JP2000207228A JP2002021870A JP 2002021870 A JP2002021870 A JP 2002021870A JP 2000207228 A JP2000207228 A JP 2000207228A JP 2000207228 A JP2000207228 A JP 2000207228A JP 2002021870 A JP2002021870 A JP 2002021870A
Authority
JP
Japan
Prior art keywords
nut
main body
ring member
peripheral surface
inner peripheral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000207228A
Other languages
Japanese (ja)
Inventor
Takeshi Komine
毅 小峰
Yasuhiko Kitamura
泰彦 北村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daishowa Seiki Co Ltd
Original Assignee
Daishowa Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daishowa Seiki Co Ltd filed Critical Daishowa Seiki Co Ltd
Priority to JP2000207228A priority Critical patent/JP2002021870A/en
Publication of JP2002021870A publication Critical patent/JP2002021870A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/09Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
    • F16D1/093Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping
    • F16D1/095Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping with clamping effected by ring contraction only

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a tightening nut maintaining a rotation balance and not generating vibration during rotation. SOLUTION: In a tightening nut 1 comprising a nut main body 4, a ring member 5 engaged with the nut main body 4, and a bearing ball 7 inserted between the nut main body 4 and the ring member 5 from a bolt insertion hole 6 provided on the nut main body 4 and attaching the nut main body 4 and the ring member 5 in a mutually rotatable condition, a part of an inner periphery surface of the nut main body 4 at a roughly symmetrical position against the ball insertion hole 6 is cut off.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、工作機械の主軸に
工具を取り付けるコレットチャック等に使用される締付
ナットに関し、特に、ナット本体と、このナット本体に
嵌合されるリング部材と、ナット本体に設けたボール挿
入孔よりナット本体とリング部材との界面間に介挿して
両者を相互回転自在に取り付けるベアリングボールとか
らなる締付ナットに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut for use in a collet chuck for mounting a tool on a main shaft of a machine tool, and more particularly to a nut body, a ring member fitted to the nut body, and a nut. The present invention relates to a tightening nut comprising a bearing ball inserted through a ball insertion hole provided in a main body between an interface between a nut main body and a ring member and rotatably mounting the two.

【0002】[0002]

【従来の技術】この締付ナットでは、ナット本体とリン
グ部材との界面間にベアリングボールを介挿するため
に、ナット本体の内周面とリング部材の外周面とに夫々
断面半円状の環状溝を形成すると共に、両環状溝間にベ
アリングボールを挿入するボール挿入口をナット本体の
周方向1箇所に設け、しかしてボール挿入口より両環状
溝間にベアリングボールを挿入した後、ボール挿入口を
合成樹脂製の栓体によって閉栓するようにしている。
2. Description of the Related Art In this tightening nut, in order to insert a bearing ball between the interface between the nut body and the ring member, the inner peripheral surface of the nut body and the outer peripheral surface of the ring member each have a semicircular cross section. An annular groove is formed, and a ball insertion port for inserting a bearing ball between the two annular grooves is provided at one location in the circumferential direction of the nut body. The insertion opening is closed by a synthetic resin stopper.

【0003】[0003]

【発明が解決しようとする課題】上記のようにナット本
体の周方向1箇所にボール挿入口を形成していることか
ら、このような締付ナットを組み込んだコレットチャッ
クでドリル等の工具を固定して、回転主軸の回転により
切削加工を行う際に、チャックの回転のバランスが悪く
なって振動を生じ、加工精度を低下すると云う問題があ
った。
Since the ball insertion opening is formed at one location in the circumferential direction of the nut body as described above, a tool such as a drill is fixed with a collet chuck incorporating such a tightening nut. Then, when cutting is performed by the rotation of the rotating main shaft, there is a problem that the balance of the rotation of the chuck is deteriorated and vibration is generated, thereby lowering the processing accuracy.

【0004】本発明は、上記の問題点に鑑み、回転のバ
ランスを維持できて、回転時に振動が発生しないように
した締付ナットを提供することを目的とする。
[0004] In view of the above problems, an object of the present invention is to provide a tightening nut capable of maintaining the balance of rotation and preventing vibration during rotation.

【0005】[0005]

【課題を解決するための手段】請求項1に係る発明は、
ナット本体4と、このナット本体4に嵌合されるリング
部材5と、ナット本体4に設けたボール挿入孔6よりナ
ット本体4とリング部材5との界面間に挿入して両者を
相互回転自在に取り付けるベアリングボール7と、から
なる締付ナットにおいて、ナット本体4の内周面の前記
ボール挿入孔6とほぼ対称位置にある部分10を肉落と
ししてなることを特徴とする。
The invention according to claim 1 is
A nut body 4, a ring member 5 fitted to the nut body 4, and a ball insertion hole 6 provided in the nut body 4 inserted between the interface between the nut body 4 and the ring member 5 so that the two can freely rotate with each other. And a bearing ball 7 attached to the nut, wherein a portion 10 of the inner peripheral surface of the nut body 4 which is substantially symmetrical with the ball insertion hole 6 is lightened.

【0006】請求項2は、請求項1に記載の締付ナット
において、前記肉落とし部分10は、ナット本体4の内
周面における雌ねじ部19の形成されていない部分に設
けられることを特徴とする。
A second aspect of the present invention is the tightening nut according to the first aspect, wherein the thinned portion 10 is provided on a portion of the inner peripheral surface of the nut body 4 where the female screw portion 19 is not formed. I do.

【0007】請求項3は、請求項1又は2に記載の締付
ナットにおいて、前記肉落とし部分10は、その横断面
形状がナット本体4の内周面に沿った略三日月状である
ことを特徴とする。
A third aspect of the present invention is the tightening nut according to the first or second aspect, wherein the lightening portion 10 has a substantially crescent-shaped cross-sectional shape along the inner peripheral surface of the nut body 4. Features.

【0008】[0008]

【発明の実施の形態】図1は本発明の一実施形態である
コレットチャックを示したもので、この図の(A)は縦
断面図、(B)は(A)のX−X線断面図である。この
コレットチャックは、後端部側にテーパシャンク部11
を有し且つ先端部側に奥細テーパ穴12を有する鋼製の
チャック本体2と、外周面が奥細テーパを成してチャッ
ク本体2の奥細テーパ穴12に嵌合する第1テーパ面1
3を備えた縮径可能な鋼製のコレット3と、このコレッ
ト3に取り外し可能に連結されると共にチャック本体2
に螺合される締付ナット1とからなる。
FIG. 1 shows a collet chuck according to an embodiment of the present invention. FIG. 1 (A) is a longitudinal sectional view, and FIG. 1 (B) is a sectional view taken along line XX of FIG. 1 (A). FIG. This collet chuck has a tapered shank portion 11 on the rear end side.
A steel chuck body 2 having a deep tapered hole 12 on the tip end side, and a first tapered surface fitted into the deep tapered hole 12 of the chuck body 2 with an outer peripheral surface forming a deep taper 1
3. A collapsible steel collet 3 having a chuck body 3 and a chuck body 2 detachably connected to the collet 3.
And a tightening nut 1 screwed into the nut.

【0009】コレット3は、ドリルやエンドミルなどの
工具Tを挿入する工具挿入孔14を中心軸線Oに沿って
形成した中空状の裁頭円錐体からなるもので、先端から
後端部にかけて軸方向に延びる割り溝15が図1の
(B)に示すように周方向に一定間隔おきに複数形成さ
れている。このコレット3の前端部外周面に環状溝16
が形成され、この環状溝16の前記第1テーパ面13と
隣接する周側壁にはその第1テーパ面13と逆傾斜の第
2テーパ面17が形成されている。
The collet 3 is a hollow truncated cone having a tool insertion hole 14 for inserting a tool T such as a drill or an end mill formed along the central axis O, and extends axially from the front end to the rear end. Are formed at regular intervals in the circumferential direction as shown in FIG. 1 (B). An annular groove 16 is formed on the outer peripheral surface of the front end of the collet 3.
Is formed, and a second tapered surface 17 is formed on the peripheral side wall of the annular groove 16 adjacent to the first tapered surface 13, the second tapered surface 17 being inclined reversely to the first tapered surface 13.

【0010】締付ナット1は、鋼製のナット本体4と、
このナット本体4に嵌合される鋼製のリング部材5と、
ナット本体4に形成されたボール挿入孔6よりナット本
体4とリング部材5との界面間に挿入して両者を相互回
転自在に取り付ける鋼球からなるベアリングボール7と
によって構成される。リング部材5はナット本体4の前
端部内周面4aに嵌合され、このナット本体4の前端部
内周面4aとリング部材5の外周面5aとに夫々断面半
円状の環状溝8,9が形成されて、両環状溝8,9間に
ナット本体4のボール挿入孔6より多数のベアリングボ
ール7が挿入され、それによってナット本体4とリング
部材5とが互いに回転自在に取り付けられる。
The tightening nut 1 comprises a steel nut body 4 and
A steel ring member 5 fitted to the nut body 4,
A bearing ball 7 made of a steel ball is inserted through a ball insertion hole 6 formed in the nut main body 4 between the interface between the nut main body 4 and the ring member 5 so as to be rotatable with each other. The ring member 5 is fitted to the front end inner peripheral surface 4a of the nut main body 4, and the front end inner peripheral surface 4a of the nut main body 4 and the outer peripheral surface 5a of the ring member 5 have annular grooves 8, 9 having a semicircular cross section, respectively. Thus, a number of bearing balls 7 are inserted between the annular grooves 8 and 9 from the ball insertion holes 6 of the nut body 4, whereby the nut body 4 and the ring member 5 are rotatably attached to each other.

【0011】ナット本体4の後端部内周面には、チャッ
ク本体2の前端部外周面の雄ねじ部18に螺合される雌
ねじ部19が形成され、リング部材5の内周面にはコレ
ット3の環状溝16に係入する環状凸部20が形成され
ている。また、締付ナット1の締付時には、上記リング
部材5に形成された環状凸部20の後端側テーパ面20
aがコレット3の第2テーパ面17に押接するようにな
っている。尚、図1の(A)に示すように、両環状溝
8,9間へのベアリングボール7の挿入後、ボール挿入
孔6は、合成樹脂製の栓体21をねじ込むなどして閉栓
されるようになっている。
On the inner peripheral surface of the rear end portion of the nut body 4, a female screw portion 19 is formed, which is screwed to the male screw portion 18 of the outer peripheral surface of the front end portion of the chuck body 2, and the collet 3 is formed on the inner peripheral surface of the ring member 5. An annular convex portion 20 is formed to engage with the annular groove 16. When the nut 1 is tightened, the rear end side tapered surface 20 of the annular projection 20 formed on the ring member 5 is tightened.
a presses against the second tapered surface 17 of the collet 3. As shown in FIG. 1A, after the bearing ball 7 is inserted between the annular grooves 8 and 9, the ball insertion hole 6 is closed by screwing a synthetic resin plug 21 or the like. It has become.

【0012】図2は、締付ナット1のナット本体4から
リング部材5を取り外して、ナット本体4のみを示した
もので、(A)は縦断面図、(B)は(A)のY−Y線
断面図である。この図からよくわかるように、ナット本
体4の内周面は、当該ナット本体4の中心軸線Oに関し
て前記ボール挿入孔6とほぼ対称位置にある部分が、前
記ボール挿入孔6の容積に相当する分だけ肉落としされ
ており、この肉落とし部分を図中に10で示す。
FIGS. 2A and 2B show only the nut body 4 by removing the ring member 5 from the nut body 4 of the tightening nut 1. FIG. 2A is a longitudinal sectional view, and FIG. FIG. 4 is a sectional view taken along line -Y. As can be clearly understood from this figure, the portion of the inner peripheral surface of the nut main body 4 which is substantially symmetrical with the ball insertion hole 6 with respect to the central axis O of the nut main body 4 corresponds to the volume of the ball insertion hole 6. The meat is reduced by the amount corresponding to the thickness, and the portion of the meat that is reduced is indicated by 10 in the figure.

【0013】この肉落とし部分10は、図2の(A)か
ら分かるように、ナット本体4の内周面における雌ねじ
部19の形成されていない部分で且つリング部材5の嵌
合されない部分、つまり雌ねじ部19と前端部内周面4
aとの間に位置し、横断面形状が略三日月状に形成され
ている。
As can be seen from FIG. 2A, the lightened portion 10 is a portion of the inner peripheral surface of the nut body 4 where the female thread 19 is not formed and where the ring member 5 is not fitted, that is, Female thread 19 and front end inner peripheral surface 4
a, and has a substantially crescent shape in cross section.

【0014】上記のように、ナット本体4の内周面の前
記ボール挿入孔6とほぼ対称の位置にある部分10がそ
のボール挿入孔6の容積に相当する分だけ肉落としされ
ることによって、ナット本体4の回転のバランスが保た
れ、したがってこのナット本体4とリング部材5とから
なる締付ナット1を組み込んだコレットチャックでドリ
ル等の工具を固定して、回転主軸の回転により切削加工
を行う際に、コレットチャックが振動を生ずるようなこ
とがなくなり、加工精度を維持することができる。即
ち、前述のように、ボール挿入孔6には、金属に比べて
極めて軽量な合成樹脂製の栓体21が嵌装されるため、
ほぼボール挿入孔6の容積分に相当する重量が他の部
分、特にボール挿入孔6と対称位置に比べて少なくな
る。本発明は、この少なくなった重量に相当する肉部分
を肉落としすることによって、重量バランスを保つよう
にしたものである。
As described above, the portion 10 of the inner peripheral surface of the nut body 4 which is substantially symmetric with the ball insertion hole 6 is reduced in thickness by an amount corresponding to the volume of the ball insertion hole 6. The balance of the rotation of the nut body 4 is maintained. Therefore, a tool such as a drill is fixed by a collet chuck incorporating the tightening nut 1 composed of the nut body 4 and the ring member 5, and cutting is performed by rotation of the rotating spindle. When performing, the collet chuck does not vibrate, so that the processing accuracy can be maintained. That is, as described above, since the plug 21 made of synthetic resin, which is extremely lighter than metal, is fitted into the ball insertion hole 6,
The weight substantially corresponding to the volume of the ball insertion hole 6 is reduced as compared with the other parts, especially the position symmetrical with the ball insertion hole 6. In the present invention, the meat portion corresponding to the reduced weight is lightened to maintain the weight balance.

【0015】図3は、肉落とし部分10の位置が図1及
び図2に例示した実施形態とは若干異なった締付ナット
1の実施形態を示したもので、(A)は縦断面図、
(B)は(A)のZ−Z線断面図である。即ち、この実
施形態の締付ナット1は、ナット本体4の軸方向長さが
図1及び図2の実施形態のものより長くなっており、し
かして肉落とし部分10は、当該ナット本体4の後端部
内周面、つまりリング部材5の嵌合される側と反対側で
雌ねじ部19の形成されていない部分に形成されてい
る。この肉落とし部分10の横断面形状は、図1及び図
2の実施形態と同じく略三日月状である。
FIG. 3 shows an embodiment of the tightening nut 1 in which the position of the lightening portion 10 is slightly different from the embodiment illustrated in FIGS. 1 and 2, (A) is a longitudinal sectional view,
(B) is a sectional view taken along line ZZ of (A). That is, in the tightening nut 1 of this embodiment, the axial length of the nut body 4 is longer than that of the embodiment of FIG. 1 and FIG. It is formed on the inner peripheral surface of the rear end portion, that is, on a portion where the female screw portion 19 is not formed on the side opposite to the side where the ring member 5 is fitted. The cross-sectional shape of the lightening portion 10 is substantially crescent like the embodiment of FIGS. 1 and 2.

【0016】上記のように肉落とし部分10をナット本
体4の外周面に設けないで、その内周面に設けることに
よって、コレットチャック回転時における風切り音の発
生を有効に阻止することができると共に、肉落とし部分
10が外部に露出することがないから外観上の体裁を損
なうこともない。
By providing the lightening portion 10 not on the outer peripheral surface of the nut body 4 but on its inner peripheral surface as described above, it is possible to effectively prevent the generation of wind noise when the collet chuck rotates. Also, since the lightened portion 10 is not exposed to the outside, the appearance is not spoiled.

【0017】上記のように、肉落とし部分10を、ナッ
ト本体4の内周面に沿った横断面略三日月状に形成する
ことによって、ナット本体4の肉厚が局部的に薄くなる
ようなことがなくなり、ナット本体4の機械的強度を維
持することができる。また、この肉落とし部分10を、
ナット本体の内周面における雌ねじ部の形成されていな
い部分に設けるようにすれば、チャック本体2の雄ねじ
部18に対するナット本体4の雌ねじ部19の螺合状態
を適正に維持できると共に、肉落とし部分10の形成も
容易となる。
As described above, the thickness of the nut body 4 is locally reduced by forming the lightening portion 10 in a substantially crescent shape in cross section along the inner peripheral surface of the nut body 4. And the mechanical strength of the nut body 4 can be maintained. In addition, this lightened part 10
By providing the nut at the portion of the inner peripheral surface of the nut body where the female screw portion is not formed, the screwed state of the female screw portion 19 of the nut main body 4 with the male screw portion 18 of the chuck main body 2 can be properly maintained, and the thinning is performed. The formation of the portion 10 is also facilitated.

【0018】[0018]

【発明の効果】請求項1に係る発明の締付ナットによれ
ば、ナット本体の内周面におけるボール挿入孔とほぼ対
称の位置にある部分を肉落としして重量バランスを得る
ことによって、ナット本体が回転する時の回転バランス
が保たれ、したがってこのナット本体とリング部材とか
らなる締付ナットを工具保持用のチャックに使用して回
転させる時に、チャックが振動を生ずることがなくな
り、加工精度を維持することができる。
According to the tightening nut according to the first aspect of the present invention, a portion at a position substantially symmetrical with the ball insertion hole on the inner peripheral surface of the nut body is lightened to obtain a weight balance, thereby obtaining the weight balance. The rotation balance when the main body rotates is maintained. Therefore, when the tightening nut composed of the nut main body and the ring member is used as the chuck for holding the tool and is rotated, the chuck does not generate vibration, and the processing accuracy is reduced. Can be maintained.

【0019】なお又、上記肉落とし部分をナット本体の
外周面に設けないで、その内周面に設けることによっ
て、コレットチャック回転時における風切り音の発生を
有効に阻止することができると共に、肉落とし部分が外
部に露出することがないから外観上の体裁を損なうこと
もない。
By providing the lightening portion on the inner peripheral surface of the nut body without providing the same on the inner peripheral surface, it is possible to effectively prevent the generation of wind noise when the collet chuck rotates. Since the dropped part is not exposed to the outside, it does not impair the appearance.

【0020】請求項2に記載のように、肉落とし部分
を、ナット本体の内周面における雌ねじ部の形成されて
いない部分に位置させることにより、チャック本体に対
するナット本体の螺合状態を適正に維持できると共に、
肉落とし部分の形成も容易となる。
[0020] As described in the second aspect, by locating the lightening portion on a portion of the inner peripheral surface of the nut body where the female screw portion is not formed, the threaded state of the nut body with respect to the chuck body can be properly adjusted. Can be maintained,
The formation of the lightening portion is also facilitated.

【0021】請求項3に記載のように、肉落とし部分の
横断面形状を、ナット本体の内周面に沿った略三日月状
に形成することによって、ナット本体の肉厚が局部的に
薄くなるようなことがなく、ナット本体の機械的強度を
維持することができる。
According to the third aspect of the present invention, the thickness of the nut body is locally reduced by forming the cross-sectional shape of the lightened portion into a substantially crescent shape along the inner peripheral surface of the nut body. Without this, the mechanical strength of the nut main body can be maintained.

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

【図1】 本発明の一実施形態のコレットチャックを示
すもので、(A)は縦断面図、(B)は(A)のX−X
線断面図である。
FIG. 1 shows a collet chuck according to an embodiment of the present invention, in which (A) is a longitudinal sectional view, and (B) is XX of (A).
It is a line sectional view.

【図2】 締付ナットのナット本体からリング部材を取
り外して、ナット本体のみを示したもので、(A)は縦
断面図、(B)は(A)のY−Y線断面図である。
FIGS. 2A and 2B show only a nut main body by removing a ring member from a nut main body of a tightening nut. FIG. 2A is a longitudinal sectional view, and FIG. 2B is a sectional view taken along line YY of FIG. .

【図3】 他の実施形態を示すもので、(A)は図1の
(A)と同様な縦断面図、(B)は(A)のZ−Z線断
面図である。
3A and 3B show another embodiment, in which FIG. 3A is a longitudinal sectional view similar to FIG. 1A, and FIG. 3B is a sectional view taken along line ZZ of FIG. 3A.

【符号の説明】[Explanation of symbols]

1 締付ナット 2 チャック本体 3 コレット 4 ナット本体 5 リング部材 6 ボール挿入孔 7 ベアリングボール 8 ナット本体側の環状溝 9 リング部材側の環状溝 10 肉落とし部分 DESCRIPTION OF SYMBOLS 1 Tightening nut 2 Chuck body 3 Collet 4 Nut body 5 Ring member 6 Ball insertion hole 7 Bearing ball 8 Nut body side annular groove 9 Ring member side annular groove 10 Lightening part

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 ナット本体と、このナット本体に嵌合さ
れるリング部材と、ナット本体に設けたボール挿入孔よ
りナット本体とリング部材との界面間に挿入して両者を
相互回転自在に取り付けるベアリングボールと、からな
る締付ナットにおいて、ナット本体の内周面の前記ボー
ル挿入孔とほぼ対称位置にある部分を肉落とししてなる
締付ナット。
1. A nut main body, a ring member fitted to the nut main body, and a ball insertion hole provided in the nut main body, inserted between the interface between the nut main body and the ring member so as to be rotatable with each other. A tightening nut comprising a bearing ball and a portion of the inner peripheral surface of the nut body at a position substantially symmetrical to the ball insertion hole being lightened.
【請求項2】 前記肉落とし部分は、ナット本体の内周
面における雌ねじ部の形成されていない部分に設けられ
る請求項1に記載の締付ナット。
2. The tightening nut according to claim 1, wherein the lightening portion is provided on a portion of the inner peripheral surface of the nut body where the female screw portion is not formed.
【請求項3】 前記肉落とし部分は、その横断面形状が
ナット本体の内周面に沿った略三日月状である請求項1
又は2に記載の締付ナット。
3. The lightening portion has a substantially crescent-shaped cross section along the inner peripheral surface of the nut body.
Or the fastening nut according to 2.
JP2000207228A 2000-07-07 2000-07-07 Tightening nut Pending JP2002021870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000207228A JP2002021870A (en) 2000-07-07 2000-07-07 Tightening nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000207228A JP2002021870A (en) 2000-07-07 2000-07-07 Tightening nut

Publications (1)

Publication Number Publication Date
JP2002021870A true JP2002021870A (en) 2002-01-23

Family

ID=18704027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000207228A Pending JP2002021870A (en) 2000-07-07 2000-07-07 Tightening nut

Country Status (1)

Country Link
JP (1) JP2002021870A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101762632B1 (en) * 2016-10-26 2017-08-03 주식회사 강산산업 Coupler for
EP3318774A1 (en) * 2016-11-04 2018-05-09 Neumayer Tekfor Engineering GmbH Connection assembly for connecting a shaft to a component
WO2023181651A1 (en) * 2022-03-24 2023-09-28 株式会社荏原製作所 Coupling device for coupling rotating body to rotating shaft, and device for attaching and detaching rotating body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101762632B1 (en) * 2016-10-26 2017-08-03 주식회사 강산산업 Coupler for
WO2018080107A1 (en) * 2016-10-26 2018-05-03 주식회사 강산산업 Motor pump coupler
EP3318774A1 (en) * 2016-11-04 2018-05-09 Neumayer Tekfor Engineering GmbH Connection assembly for connecting a shaft to a component
WO2023181651A1 (en) * 2022-03-24 2023-09-28 株式会社荏原製作所 Coupling device for coupling rotating body to rotating shaft, and device for attaching and detaching rotating body

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