JPH09166149A - Rotary body fixing tool - Google Patents
Rotary body fixing toolInfo
- Publication number
- JPH09166149A JPH09166149A JP7324739A JP32473995A JPH09166149A JP H09166149 A JPH09166149 A JP H09166149A JP 7324739 A JP7324739 A JP 7324739A JP 32473995 A JP32473995 A JP 32473995A JP H09166149 A JPH09166149 A JP H09166149A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- slit
- hole
- deformation portion
- peripheral surface
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings 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
- F16D1/0852—Couplings 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 between the mating surfaces of the hub and shaft
- F16D1/0864—Couplings 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 between the mating surfaces of the hub and shaft due to tangential loading of the hub, e.g. a split hub
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転体を軸に固定
するための回転体固定具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating body fixing tool for fixing a rotating body to a shaft.
【０００２】[0002]
【従来の技術】従来、プーリや歯車等の回転体を軸に固
定する手段としては、回転体のボスの軸孔や軸にキー溝
を加工してキーで両者を固定したり、軸に嵌合される回
転体のボスに止めネジを螺着して、前記止めネジの先端
をボスに嵌挿した軸の外周面に圧接して固定する手段等
が用いられている。2. Description of the Related Art Conventionally, as means for fixing a rotating body such as a pulley or a gear to a shaft, a key hole is formed in a shaft hole or a shaft of a boss of the rotating body to fix them with a key, or to fit the shaft. Means or the like is used in which a set screw is screwed onto a boss of a rotating body to be fitted and the tip of the set screw is pressed against and fixed to the outer peripheral surface of a shaft fitted into the boss.
【０００３】また、実公昭６２−６３３８号公報に示さ
れているように、軸外周面に嵌合されるインナーレース
と回転体のボス内周に嵌合されるアウターレースの両外
側にそれぞれ楔状テーパ面を形成して、それぞれの楔状
テーパ面間に一対のテーパリングを両側から多数の締付
ボルトによって楔合させ、インナーレース内周面を拡径
させて軸外周面に圧接させるとともに、アウターレース
外周面をボスの内周面に圧接させて、軸とボスとを締結
する構造の回転体固定具も提案されている。Further, as disclosed in Japanese Utility Model Publication No. 62-6338, a wedge shape is formed on both outer sides of the inner race fitted to the outer peripheral surface of the shaft and the outer race fitted to the inner circumference of the boss of the rotating body. A tapered surface is formed, and a pair of taper rings are wedged between the wedge-shaped tapered surfaces with a large number of tightening bolts from both sides to expand the inner race inner peripheral surface and press-contact it with the shaft outer peripheral surface. There has also been proposed a rotating body fixture having a structure in which the shaft and the boss are fastened by pressing the outer peripheral surface of the race against the inner peripheral surface of the boss.
【０００４】[0004]
【発明が解決しようとする課題】前述したキーを用いて
回転体を軸に固定するものでは、回転体のボスの軸孔や
軸にキー溝を加工する必要があり、また回転体のボスに
螺合した止めネジで軸を締め付けて固定するものでは、
止めネジ先端部と軸外周面との接触面積が狭いため、大
きなトルクを伝達することができなかった。In the case of fixing the rotating body to the shaft by using the above-mentioned key, it is necessary to form a key groove in the shaft hole or the shaft of the boss of the rotating body, and also in the boss of the rotating body. In the case of tightening the shaft with a set screw that is screwed in and fixing it,
A large torque could not be transmitted because the contact area between the tip of the set screw and the outer peripheral surface of the shaft was small.
【０００５】さらに、前記実公昭６２−６３３８号公報
に記載されている回転体固定具は、回転体のボスや軸に
は加工を必要としないが、締付ボルトが多数用いられて
いるため締め付け作業に時間がかかり、また、締付ボル
トが軸に平行に配置されているため、軸方向の作業空間
を必要とする問題があった。Further, the rotating body fixing device described in Japanese Utility Model Publication No. 62-6338 does not require machining on the boss and shaft of the rotating body, but tightens because many tightening bolts are used. There is a problem that the work takes time and the work space in the axial direction is required because the tightening bolts are arranged parallel to the shaft.
【０００６】そこで本発明は、前述したような従来技術
における諸問題を解決し、回転体や軸に加工を施すこと
なく短時間で簡単に組付作業を行うことができるととも
に、軸方向の作業空間を確保する必要がなく、軸と回転
体とを強固に結合することができ、且つ、構造が簡単で
製造が容易な回転体固定具を提供することを目的とす
る。Therefore, the present invention solves the problems in the prior art as described above, and enables easy assembling work in a short time without machining the rotating body and the shaft, and the work in the axial direction. It is an object of the present invention to provide a rotating body fixing tool that does not need to secure a space, can firmly connect a shaft and a rotating body, has a simple structure, and is easy to manufacture.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するた
め、本発明の回転体固定具は、回転体の中心孔に嵌合す
る外周面と軸が貫通する貫通孔とを有し前記外周面の１
カ所に前記貫通孔まで達する半径方向の拡径スリットが
切欠形成された弾性変形可能な円筒状の径拡大変形部
と、前記軸に嵌合する締付孔を有するとともに前記締付
孔を略直径方向に横断する分割スリットによって２つの
部分に分割された弾性変形可能な径収縮変形部とを備え
たものである。そして、前記径収縮変形部は前記径拡大
変形部に隣接配置されて前記２つの部分が径拡大変形部
の拡径スリット近傍の両側部分とそれぞれ一体に変位す
るように連結され、前記締付孔に対して前記径拡大変形
部と連結されている側と反対側で前記分割スリットを横
断するように前記径収縮変形部に貫通されている締付ボ
ルトによって前記２つの部分が相互に連結されている構
造としたものである。In order to achieve the above-mentioned object, a rotating body fixture of the present invention has an outer peripheral surface that fits into a central hole of a rotating body and a through hole through which a shaft penetrates. Of 1
An elastically deformable cylindrical diameter-enlarging and deforming portion in which a radial-diameter expanding slit that reaches the through hole is formed at a location, and a tightening hole that fits on the shaft, and the tightening hole has a substantially diameter. An elastically deformable diameter-shrinkable deformation portion divided into two parts by a split slit that crosses the direction. The diametrical contraction deforming portion is disposed adjacent to the diametrical expansion deforming portion, and the two portions are connected so as to be integrally displaced with both side portions in the vicinity of the diametrical expanding slit of the diametrical expanding deformation portion. The two parts are connected to each other by a tightening bolt that penetrates the diameter contracting deformation part so as to traverse the split slit on the side opposite to the side connected to the diameter expanding deformation part. It has a structure.
【０００８】前記径拡大変形部の拡径スリット近傍の両
側部分と前記径収縮変形部の２つの部分にはそれぞれ軸
方向にリベット孔が形成され、径収縮変形部側のリベッ
ト孔と径拡大変形部側のリベット孔との間に貫通される
リベットによって径拡大変形部と径収縮変形部とが一体
に変位するように連結することが好ましい。また、前記
径収縮変形部は、前記径拡大変形部の両側に対称的に配
置されている構造とすることも好ましい。A rivet hole is formed in the axial direction in both sides of the diameter expansion and deformation portion in the vicinity of the diameter expansion slit and in the two parts of the diameter expansion and deformation portion, respectively. It is preferable that the diametrically enlarged deformation portion and the diametrically contracted deformation portion are connected so as to be integrally displaced by a rivet that penetrates between the rivet hole on the part side. It is also preferable that the diametrically contracting and deforming portions are symmetrically arranged on both sides of the diametrically expanding and deforming portion.
【０００９】さらに、前記軸に嵌合する補助締付孔を有
するとともに外周面の１カ所に前記補助締付孔まで達す
る半径方向の縮径スリットが切欠形成されている弾性変
形可能な補助径収縮変形部が前記径拡大変形部に対して
前記径収縮変形部が隣接する側の反対側に隣接配置さ
れ、前記径拡大変形部には前記拡径スリットと貫通孔に
対して略反対側に外周面から貫通孔に達する縮径スリッ
トが切欠形成され、前記径拡大変形部の縮径スリット近
傍の両側部分と前記補助径収縮変形部の縮径スリット近
傍の両側部分とがそれぞれ一体に変位するように連結さ
れている構造とすることも好ましい。Further, an elastically deformable auxiliary diameter contraction having an auxiliary tightening hole to be fitted to the shaft and a radially reduced slit reaching one of the auxiliary tightening holes is formed at one location on the outer peripheral surface. A deforming portion is arranged adjacent to the diameter enlarging deforming portion on the opposite side to the side where the diameter contracting deforming portion is adjacent, and the outer periphery of the diameter enlarging deforming portion is substantially opposite to the diameter enlarging slit and the through hole. A diameter-reducing slit reaching from the surface to the through-hole is cut out so that both side portions near the diameter-reducing slit of the diameter enlarging deformation portion and both side portions near the diameter reducing slit of the auxiliary diameter contraction-deforming portion are displaced integrally. It is also preferable that the structure is connected to.
【００１０】そして、この場合にはさらに、前記径拡大
変形部と径収縮変形部と補助径収縮変形部は中心部に前
記軸に適合する連通孔を有する弾性変形可能な円筒体の
一方の端面寄りの外周面の一側から前記連通孔の中心を
越えた途中位置まで前記一方の端面側へ傾斜して切り込
まれた第１のスリットと前記円筒体の他方の端面寄りの
外周面の他側から連通孔の中心を越えた途中位置まで前
記他方の端面側へ傾斜して切り込まれた第２のスリット
によって相互に連結された状態で区分されて、前記連通
孔から前記径拡大変形部の貫通孔と前記径収縮変形部の
締付孔と前記補助径収縮変形部の補助締付孔が形成さ
れ、前記第１のスリットと交差するように前記円筒体外
周面の第１のスリットの切り込み開始位置から前記連通
孔に達する位置まで半径方向に形成された第３のスリッ
トによって、径収縮変形部の分割スリットの半部と、径
拡大変形部から補助径収縮変形部に亘る縮径スリットと
が形成され、前記第２のスリットと交差するように径収
縮変形部から径拡大変形部に亘って、前記円筒体外周面
の第２のスリットの切り込み開始位置から前記連通孔に
達する位置まで半径方向に形成された第４のスリットに
よって、径収縮変形部の分割スリットの残りの半部と径
拡大変形部の拡径スリットとが形成されている構造とす
ることも好ましい。Further, in this case, further, the diameter expansion deformation portion, the diameter contraction deformation portion, and the auxiliary diameter contraction deformation portion have one end surface of an elastically deformable cylindrical body having a communication hole at the center thereof that matches the shaft. A first slit inclined to one end face side from one side of the outer peripheral face closer to the middle position beyond the center of the communication hole and the other outer peripheral face of the cylindrical body closer to the other end face. From the side to the midway position beyond the center of the communication hole, the two diameters are divided from each other by the second slit inclined to the other end face side and connected to each other by the second slit. Through hole, a tightening hole of the diameter shrinkage deformation portion and an auxiliary tightening hole of the auxiliary diameter shrinkage deformation portion are formed, and the first slit of the outer peripheral surface of the cylindrical body is formed so as to intersect with the first slit. From the cut start position to the position reaching the communication hole By the third slit formed in the radial direction, a half portion of the split slit of the diameter contraction deformation portion and a diameter reduction slit extending from the diameter expansion deformation portion to the auxiliary diameter contraction deformation portion are formed, and the second slit is formed. By the fourth slit formed in the radial direction from the cut start position of the second slit on the outer peripheral surface of the cylindrical body to the position reaching the communication hole so as to cross the diameter contraction deformation portion and the diameter expansion deformation portion. It is also preferable to adopt a structure in which the remaining half of the split slit of the diameter contraction deformation portion and the diameter expansion slit of the diameter expansion deformation portion are formed.
【００１１】[0011]
【作用】回転体を軸に固定する場合に、請求項１乃至請
求項３に記載されている回転体固定具は、その径拡大変
形部の貫通孔と径収縮変形部の締付孔とを軸に嵌挿する
とともに、径拡大変形部の外周面を回転体のボス等に形
成されている中心孔に嵌合させる。そして、軸に対する
回転体の取付位置を位置決めした後、締付ボルトをレン
チ等の工具で締め付けると、分割スリットで２分割され
た径収縮変形部の締付ボルトの近傍の部分は互いに引き
寄せられて、締付孔の内周面は軸の外周面に圧接され
る。When the rotating body is fixed to the shaft, the rotating body fixing device according to any one of claims 1 to 3 has a through hole of the diameter expanding and deforming portion and a tightening hole of the diameter contracting and deforming portion. While being fitted into the shaft, the outer peripheral surface of the diameter-enlarged deformation portion is fitted into the central hole formed in the boss or the like of the rotating body. When the tightening bolt is tightened with a tool such as a wrench after locating the mounting position of the rotating body on the shaft, the parts in the vicinity of the tightening bolt of the diametrical contraction deforming portion divided into two by the dividing slit are attracted to each other. The inner peripheral surface of the tightening hole is pressed against the outer peripheral surface of the shaft.
【００１２】締付ボルトをさらに締め付けていくと、前
記締付孔に対して締付ボルトの貫通している側と反対側
の部分の分割スリットの間隔が弾性変形して拡がり、そ
れに伴って、径拡大変形部の拡径スリットの間隔が拡が
って、径拡大変形部の外周面が前記中心孔の内周面に押
し付けられる。前記内周面によって、径拡大変形部の外
周面の外側への変位が拘束される状態になると、拡径ス
リットはそれ以上間隔が拡がることができなくなり、締
付ボルトの締め付けによって、締付孔の内周面が軸に強
く圧接されて径収縮変形部が固定されるとともに径拡大
変形部は回転体に固定されるので、回転体固定具を介し
て軸と回転体とが一体に固定される。When the tightening bolt is further tightened, the interval between the divided slits on the opposite side of the tightening bolt from the side through which the tightening bolt penetrates elastically deforms and expands. The distance between the diameter expansion slits of the diameter expansion deformation portion is expanded, and the outer peripheral surface of the diameter expansion deformation portion is pressed against the inner peripheral surface of the center hole. When the inner peripheral surface restrains the outward displacement of the outer peripheral surface of the diameter-enlarged deformable portion, the diameter-increasing slit cannot be expanded further, and the tightening bolt tightens the tightening hole. Since the inner peripheral surface of the is strongly pressed against the shaft to fix the diameter contraction deformation portion and the diameter expansion deformation portion is fixed to the rotating body, the shaft and the rotating body are integrally fixed via the rotating body fixing tool. It
【００１３】また、請求項４と請求項５に記載されてい
る回転体固定具は、前記の回転体固定具と同様にして軸
に嵌挿し、径拡大変形部を回転体の中心孔に嵌合させた
状態で締付ボルトを締め付ける。そして、径拡大変形部
の拡径スリットの間隔が拡がって、径拡大変形部の外周
面が中心孔の内周面に押し付けられ、その変位が拘束さ
れた状態になると、貫通孔または連通孔を挟んで拡径ス
リットの反対側に形成されている縮径スリットの間隔が
狭まる。そうすると、径拡大変形部と一体に連結されて
いる補助径収縮変形部の縮径スリットの間隔も狭まり、
補助締付孔の内周面が軸の外周面に圧接され、回転体固
定具が径収縮変形部側と補助径収縮変形部側で軸に固定
され、同時に径拡大変形部が回転体がに固定されて、回
転体固定具を介して軸と回転体とが一体に固定される。Further, in the rotating body fixing tool described in claims 4 and 5, the diameter expanding and deforming portion is fitted in the center hole of the rotating body by inserting the rotating body fixing tool into the shaft in the same manner as the rotating body fixing tool. Tighten the tightening bolts in the combined state. Then, the gap between the diameter expansion deformation portions of the diameter expansion deformation portion is expanded, the outer peripheral surface of the diameter expansion deformation portion is pressed against the inner peripheral surface of the central hole, and when the displacement is constrained, the through hole or the communication hole is opened. The interval between the diameter-reducing slits formed on the opposite side of the diameter-increasing slit is narrowed. Then, the space between the diameter-reducing slits of the auxiliary diameter-contraction deformation portion that is integrally connected to the diameter-enlargement deformation portion also narrows,
The inner peripheral surface of the auxiliary tightening hole is pressed against the outer peripheral surface of the shaft, and the rotor fixing tool is fixed to the shaft at the diameter contraction deformation part side and the auxiliary diameter contraction deformation part side. By being fixed, the shaft and the rotating body are integrally fixed via the rotating body fixing tool.
【００１４】[0014]
【実施例】以下、図面に基づいて本発明の実施例を説明
する。図１は、本発明の回転体固定具の第１実施例を示
す斜視図であって、回転体固定具１は、鋼やアルミニウ
ム等の弾性変形可能な材料によって円筒状に形成され、
その外周面の一側から直径方向に中心角が略２７０度の
範囲で扇形に切り込まれたスリット２によって、円筒状
の径拡大変形部３と径収縮変形部４とに区分されてい
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a first embodiment of a rotating body fixing tool of the present invention. The rotating body fixing tool 1 is formed of an elastically deformable material such as steel or aluminum into a cylindrical shape.
A slit 2 cut in a fan shape with a central angle of approximately 270 degrees in the diametrical direction from one side of the outer peripheral surface is divided into a cylindrical diameter enlarging deformation portion 3 and a diameter contraction deformation portion 4.
【００１５】前記径収縮変形部４は、その中心部に締付
孔５が形成され、前記締付孔５を略直径方向に横断する
分割スリット６によって２つの部分に分割されており、
また、締付孔５の上方には、前記分割スリット６を横断
するように締付ボルト７が装着されている。The diametrically contracting and deforming portion 4 has a tightening hole 5 formed in the center thereof, and is divided into two parts by a dividing slit 6 which crosses the tightening hole 5 in a substantially diametrical direction.
Further, a tightening bolt 7 is mounted above the tightening hole 5 so as to cross the split slit 6.
【００１６】図２は、回転体固定具１によって、軸８に
回転体９を固定した状態を示すもので、分割スリット６
の位置における軸方向断面図である。同図に示すよう
に、径拡大変形部３の中心部には貫通孔１０が、前記締
付孔５と軸線を一致させて形成されており、締付孔５と
貫通孔１０を軸８が貫通している。また、径拡大変形部
３の外周面は、回転体９のボス９Ａの中心孔９Ｂに嵌合
している。FIG. 2 shows a state in which the rotating body 9 is fixed to the shaft 8 by the rotating body fixing tool 1. The dividing slit 6 is shown in FIG.
It is an axial direction sectional view in the position of. As shown in the figure, a through hole 10 is formed at the center of the enlarged diameter deformable portion 3 so that the tightening hole 5 and the through hole 10 are aligned with each other. Penetrates. Further, the outer peripheral surface of the diameter-enlarged deformation portion 3 is fitted into the center hole 9B of the boss 9A of the rotating body 9.
【００１７】図３は図２のＡ−Ａ線位置の矢印方向に見
た断面図であって、同図に示すように、前記締付ボルト
７は、分割スリット６で分割されている径収縮変形部４
の一方の側に形成されているボルト貫通孔１１に外周面
側からワッシャ１２を介して挿入され、他方の側に前記
ボルト貫通孔１１と軸線を一致させて形成されているネ
ジ孔１３と螺合している。前記ボルト貫通孔１１の入口
部分には、締付ボルト７の頭部を受け入れるためのの切
欠部１４が形成されている。FIG. 3 is a sectional view taken along line AA of FIG. 2 as seen in the direction of the arrow. As shown in FIG. 3, the tightening bolt 7 has a diameter shrinkage divided by a dividing slit 6. Deformation part 4
It is inserted into the bolt through hole 11 formed on one side from the outer peripheral surface side through the washer 12, and the screw hole 13 and the screw hole 13 formed on the other side with the axis aligned with the bolt through hole 11. I am fit. A notch 14 for receiving the head of the tightening bolt 7 is formed at the entrance of the bolt through hole 11.
【００１８】次に図４は、図２のＢ−Ｂ線位置での矢印
方向に見た断面図であって、径拡大変形部３にはその外
周面の１カ所から貫通孔１０に達する拡径スリット１５
が半径方向に切欠形成されている。前記拡径スリット１
５は、分割スリット６の締付孔５に対して締付ボルト７
が横断している側と反対側の部分と軸方向に連通してい
るとともに、径拡大変形部３と径収縮変形部４との間を
つないでいる扇形の連続部１６の中央を、半径方向に２
分している。Next, FIG. 4 is a sectional view taken along the line BB in FIG. 2 and seen in the direction of the arrow. The enlarged diameter deformable portion 3 extends from one position on its outer peripheral surface to the through hole 10. Diameter slit 15
Are notched in the radial direction. Expanding slit 1
5 is a tightening bolt 7 for the tightening hole 5 of the split slit 6.
The center of the fan-shaped continuous portion 16 that connects the diameter-expansion deforming portion 3 and the diameter-contraction deforming portion 4 with the center in the radial direction while communicating axially with the portion on the side opposite to the side where To 2
I know.
【００１９】前述した回転体固定具１を用いて、図２に
示すように回転体９を軸８に固定する場合には、軸８に
挿通した回転体９の中心孔９Ｂに、回転体固定具１の径
拡大変形部３側の外周面を嵌合し、また、回転体固定具
１を軸８に挿通した状態で、締付ボルト７を回転体固定
具１の側方からレンチ等の工具によって締め付ける。When the rotating body 9 is fixed to the shaft 8 using the rotating body fixture 1 described above, the rotating body is fixed in the center hole 9B of the rotating body 9 inserted through the shaft 8. With the outer peripheral surface of the tool 1 on the enlarged diameter deformation portion 3 side fitted, and with the rotating body fixing tool 1 inserted through the shaft 8, the tightening bolt 7 is attached to the side of the rotating body fixing tool 1 such as with a wrench. Tighten with a tool.
【００２０】そうすると、図３に示すように、径収縮変
形部４のネジ孔１３に螺合されている締付ボルト７の回
転に伴って、前記締付ボルト７が貫通している分割スリ
ット６の両側の部分は弾性変形して互いに引き寄せら
れ、締付孔５の左右両側の内周面は軸８の外周面に圧接
される。そして、締付ボルト７をさらに締め付けていく
と、前記締付孔５に対して締付ボルト７の貫通している
側と反対側の部分の分割スリット６の間隔が拡がり始め
る。それに伴って、連続部１６によって径収縮変形部４
の前記２つの部分とつながっている径拡大変形部３の拡
径スリット１５の間隔が弾性変形して拡がってくる。Then, as shown in FIG. 3, with the rotation of the tightening bolt 7 screwed into the screw hole 13 of the diameter shrinkage deformation portion 4, the split slit 6 through which the tightening bolt 7 penetrates. Parts on both sides are elastically deformed and attracted to each other, and the inner peripheral surfaces on the left and right sides of the tightening hole 5 are pressed against the outer peripheral surface of the shaft 8. Then, when the tightening bolt 7 is further tightened, the interval between the split slits 6 on the portion opposite to the side where the tightening bolt 7 penetrates with respect to the tightening hole 5 starts to widen. Along with that, the diameter shrinkage-deformation portion 4 is formed by the continuous portion 16.
The intervals of the diameter expansion slits 15 of the diameter expansion deformation portion 3 connected to the above two parts are elastically deformed and expanded.
【００２１】図４に示すように、拡径スリット１５の間
隔が拡がると、径拡大変形部３の外周面も外側に拡が
り、ボス９Ａの中心孔９Ｂの内周面に押し付けられて、
図２に示す状態で回転体９は径拡大変形部３に固定され
る。そして、ボス９Ａの中心孔９Ｂの内周面によって、
径拡大変形部３の外周面の外側への変位が拘束される状
態になると、拡径スリット１５はそれ以上間隔が拡がる
ことができなくなり、締付ボルト７の締め付けによっ
て、締付孔５の内周面が軸７に強く圧接されて軸８に径
収縮変形部４が固定され、回転体固定具１を介して軸８
と回転体９とが一体に固定される。As shown in FIG. 4, when the distance between the diameter-enlarging slits 15 increases, the outer peripheral surface of the diameter-enlarging and deforming portion 3 also expands outward and is pressed against the inner peripheral surface of the center hole 9B of the boss 9A.
In the state shown in FIG. 2, the rotating body 9 is fixed to the enlarged diameter deformation portion 3. Then, by the inner peripheral surface of the central hole 9B of the boss 9A,
When the outward displacement of the outer peripheral surface of the diameter-enlarged deformation portion 3 is restrained, the diameter-expansion slit 15 cannot be expanded further, and the tightening bolt 7 tightens the inside of the tightening hole 5. The peripheral surface is strongly pressed against the shaft 7 and the diameter contraction deformation portion 4 is fixed to the shaft 8, and the shaft 8 is attached via the rotating body fixture 1.
And the rotating body 9 are integrally fixed.
【００２２】前述したように、本実施例では、スリット
２を回転体固定具１の外周面の一側から直径方向に中心
角が略２７０度の範囲で扇形に切り込むことによって、
分割スリット６の両側に扇形に残された連続部１６を形
成しているため、それぞれの連続部１６は捻り変形が容
易で径収縮変形部４の弾性変位を径拡大変形部３に効率
よく伝達することができ、且つ、連続部１６に加わる曲
げ荷重に対する剛性を大きくできるので、径拡大変形部
３と径縮小変形部４間での軸線どうしの角度の狂いが生
じにくく、軸８に対する回転体９の軸線の取付角度誤差
を少なくすることができる。As described above, in this embodiment, by slitting the slit 2 from one side of the outer peripheral surface of the rotary member fixing tool 1 in the diametrical direction with the central angle being in the range of approximately 270 degrees,
Since the fan-shaped continuous portions 16 are formed on both sides of the split slit 6, each continuous portion 16 is easily twisted and deformed, and the elastic displacement of the diameter contraction deformation portion 4 is efficiently transmitted to the diameter expansion deformation portion 3. In addition, since the rigidity against the bending load applied to the continuous portion 16 can be increased, the angular deviation between the axis lines between the diameter expansion deformation portion 3 and the diameter reduction deformation portion 4 is unlikely to occur, and the rotating body with respect to the shaft 8 can be prevented. It is possible to reduce the mounting angle error of the 9th axis.
【００２３】次に、図５および図６は、本発明の回転体
固定具の第２実施例を示すものであり、図５はその斜視
図、図６は一部切欠断面を示す側面図である。これらの
図に示されている回転体固定具２１では、径拡大変形部
２３と径収縮変形部２４とはそれぞれ独立部品として分
離された状態で隣接配置されている。分割スリット２６
によって２分されている径収縮変形部２４の締付ボルト
２７が装着されている側と締付孔２５を挟んだ反対側の
それぞれの部分には、軸方向にリベット孔２８が貫通し
て形成されている。また、径拡大変形部２３には、前記
リベット孔２８と軸線を一致させてリベット孔２９が貫
通して形成されており、これらのリベット孔２８、２９
の間に亘って、リベット３０が貫通されている。Next, FIGS. 5 and 6 show a second embodiment of the rotating body fixing tool of the present invention. FIG. 5 is a perspective view thereof, and FIG. 6 is a side view showing a partially cutaway section. is there. In the rotary body fixing tool 21 shown in these figures, the diameter enlarging deforming portion 23 and the diameter contracting deforming portion 24 are arranged adjacent to each other as separate parts. Split slit 26
A rivet hole 28 is formed so as to penetrate in the axial direction in each of the portion on the side on which the tightening bolt 27 of the diameter shrinkage deformation portion 24 is attached and the part on the opposite side across the tightening hole 25. Has been done. Further, a rivet hole 29 is formed through the diameter-enlarged deformation portion 23 so that the rivet hole 28 is aligned with the axis of the rivet hole 28, and these rivet holes 28, 29 are formed.
The rivet 30 is pierced through.
【００２４】前記リベット３０は、両端がかしめられ
て、径拡大変形部２３と径収縮変形部２４とが一体に連
結され、前述した実施例と同様に分割スリット２６によ
って２分されている径収縮変形部２４の２つの部分が径
拡大変形部２３の図示していない拡径スリット近傍の両
側部分と一体に変位するように連結されている。なお、
他の部分については、前記第１の実施例のものと同様な
構成となっている。Both ends of the rivet 30 are crimped so that the diameter expansion deformation portion 23 and the diameter contraction deformation portion 24 are integrally connected, and the diameter reduction is divided into two by the division slit 26 as in the above-described embodiment. Two portions of the deformable portion 24 are connected so as to be integrally displaced with both side portions of the diameter-enlarged deformation portion 23 in the vicinity of the diameter expansion slit (not shown). In addition,
The other parts have the same structure as that of the first embodiment.
【００２５】図７は本発明の回転体固定具の第３実施例
を示す斜視図であって、本実施例の回転体固定具３１で
は、その外周面の一側から直径方向に切り込まれた２つ
のスリット３２Ａ，３２Ｂによって、径拡大変形部３３
の両側に２つの径収縮変形部３４Ａ，３４Ｂが対称的に
形成されている。前記２つの径収縮変形部３４Ａ，３４
Ｂと径拡大変形部３３の各部分は、前述した第１実施例
のものと同様に構成されている。FIG. 7 is a perspective view showing a third embodiment of the rotary body fixing tool of the present invention. In the rotary body fixing tool 31 of the present embodiment, a diametrical cut is made from one side of the outer peripheral surface thereof. With the two slits 32A and 32B, the diameter-enlarged deformation portion 33 is formed.
Two diameter contraction deformation portions 34A and 34B are symmetrically formed on both sides of the. The two diameter contraction deformation portions 34A, 34
Each part of B and the diameter expansion deformation part 33 is configured similarly to that of the first embodiment described above.
【００２６】この実施例では、回転体固定具３１を図示
しない軸に嵌挿するとともに、径拡大変形部３３の外周
面に、図示していない回転体の中心孔を嵌合させた状態
で、前記回転体の両側に突出される径収縮変形部３４
Ａ，３４Ｂに取り付けられている締付ボルト３７Ａ，３
７Ｂをそれぞれ締め付けて、前記回転体固定具３１を軸
と回転体のそれぞれに対して固定する。In this embodiment, the rotating body fixing member 31 is fitted into a shaft (not shown), and the center hole of the rotating body (not shown) is fitted to the outer peripheral surface of the diameter expansion / deformation portion 33. Radial contraction deformation part 34 projected on both sides of the rotating body
Tightening bolts 37A, 3 attached to A, 34B
7B are respectively tightened to fix the rotating body fixture 31 to the shaft and the rotating body.
【００２７】なお、本実施例では、締付ボルト３７Ａと
締付ボルト３７Ｂの各径収縮変形部３４Ａ，３４Ｂに対
する挿入方向を互いに逆向きにすることによって、負荷
トルクの向きによって、回転体固定具３１の軸に対する
締結性能に差が出ないようにしているが、軸に加わる負
荷トルクの向きが変わらない場合等には、締付ボルト３
７Ａと締付ボルト３７Ｂを同じ向きに挿入してもよい。In the present embodiment, the tightening bolt 37A and the tightening bolt 37B are inserted in the respective diametrically contracting and deforming portions 34A and 34B in opposite directions so that the rotating body fixing member can be adjusted depending on the direction of the load torque. Although there is no difference in the fastening performance of the shaft 31 with respect to the shaft, if the direction of the load torque applied to the shaft does not change, the tightening bolt 3
7A and the tightening bolt 37B may be inserted in the same direction.
【００２８】次に図８は、本発明の回転体固定具の第４
実施例を示す斜視図、図９はその側面図である。本実施
例では、回転体固定具４１は、その外周面の一側から直
径方向に切り込まれたスリット４２Ａと、反対側から直
径方向に切り込まれたスリット４２Ｂによって、径拡大
変形部４３、径収縮変形部４４Ａ、及び、補助径収縮変
形部４４Ｂに区分けされている。Next, FIG. 8 shows a fourth embodiment of the rotary member fixing tool of the present invention.
FIG. 9 is a perspective view showing an embodiment, and FIG. 9 is a side view thereof. In the present embodiment, the rotary member fixing tool 41 includes a slit 42A diametrically cut from one side of the outer peripheral surface thereof and a slit 42B diametrically cut from the opposite side thereof. It is divided into a radial contraction deformation portion 44A and an auxiliary radial contraction deformation portion 44B.
【００２９】前記径拡大変形部４３には、その中心部に
軸を貫通する貫通孔４５が形成されており、スリット４
２Ａの下方に残されている連続部４６Ａによって径収縮
変形部４４Ａと連続している。なお、図示していない
が、径拡大変形部４３には、前述した第１実施例のもの
と同様な外周面から貫通孔４５へ連通する半径方向の拡
径スリットが形成されている。A through hole 45 penetrating the shaft is formed in the center of the enlarged diameter deformation portion 43, and the slit 4 is formed.
The continuous portion 46A left below 2A is continuous with the diameter shrinkage deformation portion 44A. Although not shown, the diameter-expansion deforming portion 43 is formed with a radial expansion slit that communicates with the through hole 45 from the outer peripheral surface similar to that of the first embodiment described above.
【００３０】また、径拡大変形部４３には、径収縮変形
部４４Ａに形成されている分割スリット４７と軸方向に
連通すると共に、外周面の一カ所から前記貫通孔４５に
連通する半径方向の縮径スリット４８が切欠形成されて
いる。前記縮径スリット４８は、貫通孔４５に対して、
図示されていない拡径スリットの反対側に位置してお
り、前記拡径スリットと縮径スリット４８によって、径
拡大変形部４３は直径方向に２つの部分に分割されてい
る。なお、前記縮径スリット４８は、貫通孔４５に対し
て拡径スリットの厳密に反対側になくてもよく、多少向
きがずれていてもよい。In addition, the diameter expansion deformation portion 43 is connected to the split slit 47 formed in the diameter contraction deformation portion 44A in the axial direction, and is connected to the through hole 45 from one location on the outer peripheral surface in the radial direction. A reduced diameter slit 48 is cut out. The reduced diameter slit 48 is
It is located on the opposite side of a diameter expansion slit (not shown), and the diameter expansion deformation part 43 is divided into two parts in the diameter direction by the diameter expansion slit and the diameter reduction slit 48. The diameter-reducing slit 48 does not have to be exactly on the opposite side of the diameter-increasing slit with respect to the through hole 45, and may be slightly deviated in direction.
【００３１】前記径収縮変形部４４Ａは、前述した図１
の実施例における径収縮変形部と同様に構成されてお
り、中心部に形成されている締付孔４９を直径方向に分
割スリット４７が横断して２つの部分に分割され、前記
分割スリット４７を横断する締付ボルト５０によって、
前記２つの部分が連結されている。The diameter shrinkage deformation portion 44A is the same as that shown in FIG.
It is configured in the same manner as the diameter shrinkage deformation portion in the embodiment of the above, and the dividing slit 47 is divided into two parts by diametrically traversing the tightening hole 49 formed in the central portion, and the dividing slit 47 is divided into two parts. By the tightening bolt 50 that crosses,
The two parts are connected.
【００３２】前記補助径収縮変形部４４Ｂは、その中心
部に前記貫通孔４５及び締付孔４９と同軸となるように
補助締付孔５１が形成されている。また、補助径収縮変
形部４４Ｂの外周面の１カ所には、径拡大変形部４３の
縮径スリット４８と軸方向に連通するとともに、半径方
向に補助締付孔５１まで達する縮径スリット５２が切欠
形成されている。前記径拡大変形部４３の縮径スリット
４８近傍の両側部分と補助径収縮変形部４４Ｂの縮径ス
リット５２近傍の両側部分とは、一体に変位するよう
に、連続部４６Ｂによって連結されている。An auxiliary tightening hole 51 is formed in the center of the auxiliary diameter contraction deformation portion 44B so as to be coaxial with the through hole 45 and the tightening hole 49. Further, at one location on the outer peripheral surface of the auxiliary diameter contracting / deforming portion 44B, there is provided a diameter reducing slit 52 which communicates with the diameter reducing slit 48 of the diameter expanding / deforming portion 43 in the axial direction and reaches the auxiliary tightening hole 51 in the radial direction. Notched. Both side portions near the diameter reduction slit 48 of the diameter expansion deformation portion 43 and both side portions near the diameter reduction slit 52 of the auxiliary diameter contraction deformation portion 44B are connected by a continuous portion 46B so as to be integrally displaced.
【００３３】本実施例の回転体固定具４１を用いる場合
には、図示していない軸に嵌挿し、径拡大変形部４３
に、これも図示していない回転体の中心孔を嵌合して、
締付ボルト５０を締め付ける。そうすると、前述した各
実施例のものと同様に、径収縮変形部４４Ａの締付孔４
９の内周面が軸の両側に押し付けられ、分割スリット４
７の締付孔４９より締付ボルト５０側の間隔が狭まり、
反対側の間隔が拡がる弾性変形を生じる。その結果、連
続部４６Ａで径収縮変形部４４Ａと一体につながってい
る径拡大変形部４３は、図示していない拡径スリットが
拡がって、その外周面が回転体の中心孔の内周面に押し
付けられる。そして、締付ボルト５０をさらに締め付け
ると、前記拡径スリットはさらに拡がろうとするが、径
拡大変形部４３の外周面の両外側への変位が前記中心孔
内周面によって阻止されているため、拡径スリットと貫
通孔４５を挟んで反対側に形成されている縮径スリット
４８の間隔が狭まるように変位する。そうすると、連続
部４６Ｂで径拡大変形部４３と一体に連結されている補
助径収縮変形部４４Ｂは、縮径スリット５２の間隔が狭
くなるように弾性変形し、補助締付孔５１の内周面が軸
の外周面の両側に押し付けられる。こうして、回転体固
定具４１は締付孔４９と補助締付孔５１の２カ所で軸に
強固に固定されるとともに、径拡大変形部４３の外周面
で回転体に固定される。なお、径拡大変形部４３、径収
縮変形部４４Ａ、及び、補助径収縮変形部４４Ｂは、図
８及び図９に示すように外径に段差を設けているが、製
造を容易にするために全ての外径を等しくしてもよい。When the rotary member fixing tool 41 of this embodiment is used, it is fitted into a shaft (not shown) and the diameter expansion deforming portion 43 is inserted.
In, also fit the center hole of the rotating body (not shown),
Tighten the tightening bolt 50. Then, as in the case of each of the above-described embodiments, the tightening hole 4 of the diameter shrinkage deformation portion 44A is formed.
The inner peripheral surface of 9 is pressed against both sides of the shaft, and the split slit 4
The space on the tightening bolt 50 side from the tightening hole 49 of 7 becomes narrower,
Elastic deformation occurs where the spacing on the opposite side expands. As a result, the diameter enlarging deforming portion 43, which is integrally connected to the diameter contracting deforming portion 44A at the continuous portion 46A, has an unillustrated diameter enlarging slit that expands so that its outer peripheral surface is the inner peripheral surface of the center hole of the rotating body. It is pressed. Then, when the tightening bolt 50 is further tightened, the diameter-expanding slit tries to expand further, but the displacement of the outer peripheral surface of the diameter-enlarging deformation portion 43 to both outer sides is blocked by the inner peripheral surface of the central hole. The diameter-reducing slits 48 formed on the opposite sides of the diameter-increasing slit and the through hole 45 are displaced so as to be narrowed. Then, the auxiliary diameter contraction deformation portion 44B, which is integrally connected to the diameter expansion deformation portion 43 at the continuous portion 46B, elastically deforms so that the interval between the diameter reduction slits 52 becomes narrower, and the inner peripheral surface of the auxiliary tightening hole 51. Are pressed against both sides of the outer peripheral surface of the shaft. In this way, the rotating body fixing tool 41 is firmly fixed to the shaft at the two positions of the tightening hole 49 and the auxiliary tightening hole 51, and is also fixed to the rotating body at the outer peripheral surface of the diameter expansion deformation portion 43. The diameter expansion deformation portion 43, the diameter contraction deformation portion 44A, and the auxiliary diameter contraction deformation portion 44B are provided with steps on the outer diameter as shown in FIGS. 8 and 9, but in order to facilitate manufacturing. All outer diameters may be equal.
【００３４】次に図１０は、本発明の第５実施例を示す
斜視図であって、回転体固定具６１は、中心部に軸が適
合する連通孔６２が形成された弾性変形可能な円筒状の
材料で形成されており、その一方の端面寄りの外周面の
一側から前記連通孔６２の中心を越えた途中の位置まで
前記一方の端面側へ傾斜して切り込まれている第１のス
リット６３Ａと、他方の端面寄りの外周面の他側から連
通孔６２の中心を越えた途中位置まで前記他方の端面側
に傾斜して切り込まれた第２のスリット６３Ｂによっ
て、相互に連結された状態で、径拡大変形部６４、径収
縮変形部６５Ａ、及び、補助径収縮変形部６５Ｂに区分
けされている。なお、前記第１のスリット６３Ａと第２
のスリット６３Ｂは、回転体固定具６１の両端面に対し
て略３０度以下の傾斜角度に設定されている。Next, FIG. 10 is a perspective view showing a fifth embodiment of the present invention, in which a rotary member fixing tool 61 is an elastically deformable cylinder having a communication hole 62 formed in the center thereof for accommodating a shaft. Formed of a strip-shaped material, and is inclined and cut toward the one end face side from one side of the outer peripheral surface near the one end face to a position halfway beyond the center of the communication hole 62. Of the slit 63A and the second slit 63B that is inclined and cut toward the other end face side from the other side of the outer peripheral surface near the other end face to a midway position beyond the center of the communication hole 62. In this state, it is divided into a diameter expansion deformation portion 64, a diameter contraction deformation portion 65A, and an auxiliary diameter contraction deformation portion 65B. The first slit 63A and the second slit 63A
The slit 63B is set at an inclination angle of approximately 30 degrees or less with respect to both end surfaces of the rotating body fixture 61.
【００３５】第１のスリット６３Ａと交差するように回
転体固定具６１外周面の第１のスリット６３Ａの切り込
み開始位置から連通孔６２に達する位置まで半径方向に
形成された第３のスリット６６によって、径収縮変形部
６５Ａの分割スリットの半部６６Ａと、径拡大変形部６
４から補助径収縮変形部６５Ｂに亘る縮径スリット６６
Ｂとが形成されている。By a third slit 66 formed in the radial direction from the cut start position of the first slit 63A on the outer peripheral surface of the rotary member fixing tool 61 to the position reaching the communication hole 62 so as to intersect with the first slit 63A. , The split slit half portion 66A of the diameter contraction deformation portion 65A and the diameter expansion deformation portion 6
4 to the auxiliary diameter shrinkage deformation portion 65B
B is formed.
【００３６】また、前記第２のスリット６３Ｂと交差す
るように径収縮変形部６５Ａから径拡大変形部６４に亘
って、回転体固定具６１の外周面の第２のスリット６３
Ｂの切り込み開始位置から連通孔６２に達する位置まで
半径方向に形成された第４のスリット６７によって、径
収縮変形部６５Ａの分割スリットの残りの半部６６Ｂと
径拡大変形部６４の図示されていない拡径スリットとが
形成されている。Further, the second slit 63 on the outer peripheral surface of the rotary member fixing tool 61 extends from the diameter contraction deformation portion 65A to the diameter expansion deformation portion 64 so as to intersect with the second slit 63B.
The remaining half portion 66B of the split slit of the diameter contraction deformation portion 65A and the diameter expansion deformation portion 64 are illustrated by the fourth slit 67 formed in the radial direction from the notch start position of B to the position reaching the communication hole 62. No expanding slit is formed.
【００３７】本実施例の回転体固定具６１における径拡
大変形部６４、径収縮変形部６５Ａ、及び、補助径収縮
変形部６５Ｂは、それぞれ前述した第４実施例における
図８及び第９図に示した径拡大変形部４３、径収縮変形
部４４Ａ、及び補助径収縮変形部６５Ｂと同じ機能を有
しているが、本実施例においては、第１のスリット６３
Ａを斜めに切り込んでいるため、締付ボルト６８が貫通
する部分と他の部分の断面積の差が少なく、強度を大き
くすることができるとともに、回転体６１を加工する際
に生じるひずみを抑えることができる。The diameter enlarging deformation portion 64, the diameter contraction deformation portion 65A, and the auxiliary diameter contraction deformation portion 65B in the rotating body fixing tool 61 of this embodiment are respectively shown in FIGS. 8 and 9 in the fourth embodiment described above. Although it has the same function as the diameter expansion deformation part 43, the diameter contraction deformation part 44A, and the auxiliary diameter contraction deformation part 65B shown, in the present embodiment, the first slit 63 is provided.
Since A is cut obliquely, the difference in cross-sectional area between the portion through which the tightening bolt 68 penetrates and other portions is small, the strength can be increased, and the strain generated when processing the rotating body 61 is suppressed. be able to.
【００３８】前記連通孔６２は、径拡大変形部６４の位
置においては、前述した第４実施例における貫通孔とな
り、径収縮変形部６５Ａの位置においては締付孔の働き
をし、また、補助径収縮変形部６５Ｂの位置において
は、補助締付孔の働きをしている。図１１及び図１２
は、前記第５実施例の変形例を示す平面図であって、図
１１に示す回転体固定具６１’は、第３のスリット６
６’を、径収縮変形部６５Ａの分割スリットの半部を形
成している部分６６’Ａの幅が、径拡大変形部６４及び
補助径収縮変形部６５Ｂの縮径スリット６６’Ｂの部分
よりも広くなるように形成したものである。前記分割ス
リットの半部を形成している部分６６’Ａの幅を広くす
ることによって、締付ボルト６８の締め付け余裕を大き
くすることができ、強固な締結が可能になる。The communicating hole 62 serves as a through hole in the above-described fourth embodiment at the position of the diameter enlarging and deforming portion 64, and serves as a tightening hole at the position of the diameter contracting and deforming portion 65A. At the position of the diameter contraction deformation portion 65B, it functions as an auxiliary tightening hole. 11 and 12
FIG. 12 is a plan view showing a modified example of the fifth embodiment, in which the rotating body fixture 61 ′ shown in FIG.
6 ′ has a width of a portion 66′A forming a half portion of the division slit of the diameter contraction deformation portion 65A is larger than that of the diameter expansion deformation portion 64 and the diameter reduction slit 66′B of the auxiliary diameter contraction deformation portion 65B. Is also formed to be wide. By widening the width of the portion 66'A forming the half portion of the split slit, the tightening margin of the tightening bolt 68 can be increased, and firm tightening can be achieved.
【００３９】また、図１２の回転体固定具６１’’は、
第３のスリット６６’’の径収縮変形部６５Ａの分割ス
リットの半部を形成している部分６６’’Ａと、径拡大
変形部６４及び補助径収縮変形部６５Ｂの縮径スリット
６６’’Ｂを形成している部分とを周方向に僅かにずら
して形成したものである。なお、前記１１及び図１２中
に図１０と同一の番号で示している部分については、図
１０に示すものと同一機能を有している。Further, the rotary member fixing device 61 '' shown in FIG.
A portion 66 ″ A forming a half of the split slit of the diameter contraction deformation portion 65A of the third slit 66 ″, and the diameter reduction slit 66 ″ of the diameter expansion deformation portion 64 and the auxiliary diameter contraction deformation portion 65B. It is formed by slightly deviating from the portion forming B in the circumferential direction. It is to be noted that the parts shown in 11 and FIG. 12 with the same numbers as in FIG. 10 have the same functions as those shown in FIG.
【００４０】なお、前述した各実施例において、分割ス
リットは、径収縮変形部の締付孔を直径方向に横断して
おり、径収縮変形部を２等分するように形成されている
が、分割スリットの締付孔の一側の半部と反対側の半部
とは、方向が僅かに異なっていてもよく、また、それぞ
れの半部で分割スリットの幅が多少異なっていてもよ
い。In each of the above-described embodiments, the split slit is formed so as to cross the tightening hole of the diameter shrinkage deformation portion in the diametrical direction and divide the diameter shrinkage deformation portion into two equal parts. The direction of one half of the tightening hole of the split slit and the half of the tightening hole on the opposite side may be slightly different, and the width of the split slit may be slightly different in each half.
【００４１】[0041]
【発明の効果】以上に説明したように、本発明の回転体
固定具によれば、軸や回転体にキー溝等の加工を必要と
しないで軸に回転体を固定することができ、また、軸に
回転体側に設けられた止めネジを締め付けて固定する構
造と比較して受圧部分の面積が広いため、軸と回転体と
を相互に強固に締結することができる。As described above, according to the rotary member fixing tool of the present invention, the rotary member can be fixed to the shaft without the need for machining a key groove or the like on the shaft or the rotary member. Since the area of the pressure receiving portion is larger than that of a structure in which a set screw provided on the rotating body side is fastened and fixed to the shaft, the shaft and the rotating body can be firmly fastened to each other.
【００４２】また、軸側に嵌合されるインナーレースと
回転体側に嵌合されるアウターレースのそれぞれの両側
面間に楔合する一対のテーパリングを、多数のボルトで
軸方向から締め付けるようにした従来の回転体固定具と
比較して、締付を行うボルトの数が１本乃至２本と少な
くて済むため短時間で締付作業を行うことができ、しか
も、締付ボルトの締付作業を軸の側方から行う構造であ
るため、軸方向に作業空間を必要とせず、狭い場所にも
使用することができる。さらに、部品点数が少なく構造
が簡単であるため製造が容易であり、製造コストを安く
することができる。Further, a pair of taper rings, which are wedged between the respective side surfaces of the inner race fitted to the shaft side and the outer race fitted to the rotating body side, are tightened in the axial direction with a large number of bolts. Compared with the conventional rotating body fixtures, the number of bolts to be tightened is as small as one or two, so that the tightening work can be performed in a short time, and the tightening of the tightening bolts is also possible. Since the work is performed from the side of the shaft, it does not require a work space in the axial direction and can be used in a narrow space. Further, since the number of parts is small and the structure is simple, the manufacturing is easy and the manufacturing cost can be reduced.
【図１】 本発明の回転体固定具の第１実施例を示す斜
視図である。FIG. 1 is a perspective view showing a first embodiment of a rotating body fixture of the present invention.
【図２】 本発明の回転体固定具の使用状態を示す断面
図である。FIG. 2 is a cross-sectional view showing a use state of the rotating body fixing device of the present invention.
【図３】 図２のＡ−Ａ線位置における矢印方向に見た
断面図である。FIG. 3 is a cross-sectional view taken along a line AA in FIG. 2 and viewed in a direction indicated by an arrow.
【図４】 図２のＢ−Ｂ線位置における矢印方向に見た
断面図である。FIG. 4 is a sectional view taken along line BB in FIG. 2 and viewed in the direction of the arrow.
【図５】 本発明の回転体固定具の第２実施例を示す斜
視図である。FIG. 5 is a perspective view showing a second embodiment of the rotating body fixture of the present invention.
【図６】 本発明の回転体固定具の第２実施例を示す一
部切欠断面を含む側面図である。FIG. 6 is a side view including a partially cutaway cross section showing a second embodiment of the rotating body fixing tool of the present invention.
【図７】 本発明の回転体固定具の第３実施例を示す斜
視図である。FIG. 7 is a perspective view showing a third embodiment of the rotating body fixing tool of the present invention.
【図８】 本発明の回転体固定具の第４実施例を示す斜
視図である。FIG. 8 is a perspective view showing a fourth embodiment of the rotating body fixture of the present invention.
【図９】 本発明の回転体固定具の第４実施例を示す側
面図である。FIG. 9 is a side view showing a fourth embodiment of the rotating body fixture of the present invention.
【図１０】 本発明の回転体固定具の第５実施例を示す
斜視図である。FIG. 10 is a perspective view showing a fifth embodiment of the rotating body fixing tool of the present invention.
【図１１】 本発明の回転体固定具の第５実施例におけ
る変形例を示す図である。FIG. 11 is a view showing a modified example of the fifth embodiment of the rotating body fixing tool of the present invention.
【図１２】 本発明の回転体固定具の第５実施例におけ
る別の変形例を示す図である。FIG. 12 is a diagram showing another modified example of the fifth embodiment of the rotating body fixing tool of the present invention.
【符号の説明】 １，２１，３１，４１，６１，６１’，６１’’ 回
転体固定具 ３，２３，３３，４３，６４ 径拡
大変形部 ４，２４，３４Ａ，３４Ｂ，４４Ａ，６５Ａ 径収
縮変形部 ５，２５，４９ 締付
孔 ６，２６ 分割スリット ７，２７，３７Ａ，３７Ｂ，５０，６８ 締付ボルト ８ 軸 ９ 回転体 ９Ｂ 中心孔 １０，４５ 貫通孔 １５ 拡径スリット ２８，２９ リベット孔 ３０ リベット ４４Ｂ，６５Ｂ 補助径収縮変形部 ４８ 縮径スリット ６２ 連通孔 ６３Ａ 第１のスリット ６３Ｂ 第２のスリット ６６，６６’，６６’’ 第３のスリット ６７ 第４のスリット[Explanation of reference signs] 1,21,31,41,61,61 ', 61 "Rotating body fixing tool 3,23,33,43,64 Diameter expansion deformation part 4,24,34A, 34B, 44A, 65A diameter Shrinkage deformation part 5,25,49 Tightening hole 6,26 Divided slit 7,27,37A, 37B, 50,68 Tightening bolt 8 Shaft 9 Rotating body 9B Center hole 10,45 Through hole 15 Large diameter slit 28,29 Rivet hole 30 Rivet 44B, 65B Auxiliary diameter contraction deformation part 48 Reduction diameter slit 62 Communication hole 63A First slit 63B Second slit 66, 66 ', 66''Third slit 67 Fourth slit
Claims (5)
貫通する貫通孔とを有し前記外周面の１カ所に前記貫通
孔まで達する半径方向の拡径スリットが切欠形成された
弾性変形可能な円筒状の径拡大変形部と、 前記軸に嵌合する締付孔を有するとともに前記締付孔を
略直径方向に横断する分割スリットによって２つの部分
に分割された弾性変形可能な径収縮変形部とを備え、 前記径収縮変形部は前記径拡大変形部に隣接配置されて
前記２つの部分が径拡大変形部の拡径スリット近傍の両
側部分とそれぞれ一体に変位するように連結され、 前記締付孔に対して前記径拡大変形部と連結されている
側と反対側で前記分割スリットを横断するように前記径
収縮変形部に貫通されている締付ボルトによって前記２
つの部分が相互に連結されていることを特徴とする回転
体の固定装置。1. An outer peripheral surface fitted to a center hole of a rotating body and a through hole through which a shaft penetrates, and a radial expansion slit reaching a through hole is cut out at one location on the outer peripheral surface. An elastically deformable cylindrical diameter-enlarging and deforming portion and a tightening hole that fits into the shaft, and is elastically deformable divided into two parts by a split slit that crosses the tightening hole in a substantially diametrical direction. A diametrical contraction deforming portion, the diametrical contraction deforming portion is disposed adjacent to the diametrical expansion deforming portion, and the two parts are connected so as to be integrally displaced with both side portions near the diametrical expanding slit of the diametrical expanding deformation portion. The tightening bolt penetrates the diameter contracting deformation portion so as to traverse the split slit on the side opposite to the side connected to the diameter expanding deformation portion with respect to the tightening hole.
Fixing device for a rotating body, characterized in that two parts are connected to each other.
両側部分と前記径収縮変形部の２つの部分にはそれぞれ
軸方向にリベット孔が形成され、径収縮変形部側のリベ
ット孔と径拡大変形部側のリベット孔との間に貫通され
るリベットによって径拡大変形部と径収縮変形部とが一
体に変位するように連結されていることを特徴とする請
求項１記載の回転体固定具。2. A rivet hole is formed in each of the two sides of the diameter expansion / deformation portion in the vicinity of the expansion slit and two parts of the diameter contraction / deformation portion in the axial direction. The rotary body fixing according to claim 1, wherein the diametrical expansion deformation portion and the diameter contraction deformation portion are connected so as to be integrally displaced by a rivet that penetrates between the rivet hole on the expansion deformation portion side. Ingredient
両側に対称的に配置されていることを特徴とする請求項
１記載の回転体固定具。3. The rotating body fixing device according to claim 1, wherein the diameter contraction deformation portion is symmetrically arranged on both sides of the diameter expansion deformation portion.
ともに外周面の１カ所に前記補助締付孔まで達する半径
方向の縮径スリットが切欠形成されている弾性変形可能
な補助径収縮変形部が前記径拡大変形部に対して前記径
収縮変形部が隣接する側の反対側に隣接配置され、 前記径拡大変形部には前記拡径スリットと貫通孔に対し
て略反対側に外周面から貫通孔に達する縮径スリットが
切欠形成され、 前記径拡大変形部の縮径スリット近傍の両側部分と前記
補助径収縮変形部の縮径スリット近傍の両側部分とがそ
れぞれ一体に変位するように連結されていることを特徴
とする請求項１記載の回転体の固定装置。4. An elastically deformable auxiliary diameter contraction having an auxiliary tightening hole that fits into the shaft and a notch formed in one location on the outer peripheral surface in the radial direction to reach the auxiliary tightening hole. The deformable portion is disposed adjacent to the diameter expansion deformation portion on the opposite side to the side where the diameter contraction deformation portion is adjacent, and the diameter expansion deformation portion has an outer circumference on a side substantially opposite to the diameter expansion slit and the through hole. A diameter-reducing slit reaching the through-hole from the surface is cut out so that both side portions near the diameter-reducing slit of the diameter enlarging deformation portion and both side portions near the diameter reducing slit of the auxiliary diameter contraction-deforming portion are displaced integrally. The fixing device for the rotating body according to claim 1, wherein the fixing device is connected to the.
径収縮変形部は中心部に前記軸に適合する連通孔を有す
る弾性変形可能な円筒体の一方の端面寄りの外周面の一
側から前記連通孔の中心を越えた途中位置まで前記一方
の端面側へ傾斜して切り込まれた第１のスリットと前記
円筒体の他方の端面寄りの外周面の他側から連通孔の中
心を越えた途中位置まで前記他方の端面側へ傾斜して切
り込まれた第２のスリットによって相互に連結された状
態で区分されて、前記連通孔から前記径拡大変形部の貫
通孔と前記径収縮変形部の締付孔と前記補助径収縮変形
部の補助締付孔が形成され、 前記第１のスリットと交差するように前記円筒体外周面
の第１のスリットの切り込み開始位置から前記連通孔に
達する位置まで半径方向に形成された第３のスリットに
よって、径収縮変形部の分割スリットの半部と、径拡大
変形部から補助径収縮変形部に亘る縮径スリットとが形
成され、 前記第２のスリットと交差するように径収縮変形部から
径拡大変形部に亘って、前記円筒体外周面の第２のスリ
ットの切り込み開始位置から前記連通孔に達する位置ま
で半径方向に形成された第４のスリットによって、径収
縮変形部の分割スリットの残りの半部と径拡大変形部の
拡径スリットとが形成されていることを特徴とする請求
項４記載の回転体の固定装置。5. The outer peripheral surface of the elastically deformable cylindrical body near one end surface of the elastically deformable cylindrical body having a communicating hole at the center thereof, the diameter enlarging deforming portion, the diameter contracting deforming portion, and the auxiliary diameter contracting deforming portion. Side to the center of the communication hole from the other side of the outer peripheral surface near the other end surface of the cylindrical body inclined to the one end surface side to the middle position beyond the center of the communication hole And a through hole of the diameter enlarging and deforming portion and a diameter of the diameter-enlarging and deforming portion are separated from each other by a second slit inclined to the other end surface side up to an intermediate position beyond A tightening hole of the shrinkage-deformation portion and an auxiliary tightening hole of the auxiliary diameter shrinkage-deformation portion are formed, and the communication is performed from the cut start position of the first slit of the outer peripheral surface of the cylindrical body so as to intersect with the first slit. Third radial formed to reach the hole By the rit, a half portion of the split slit of the diameter contraction deformation portion and a diameter reduction slit extending from the diameter expansion deformation portion to the auxiliary diameter contraction deformation portion are formed, and from the diameter contraction deformation portion so as to intersect with the second slit. The fourth slit formed in the radial direction from the cutting start position of the second slit on the outer peripheral surface of the cylindrical body to the position reaching the communication hole extends over the diameter expansion deformation part, and 5. The fixing device for a rotating body according to claim 4, wherein the remaining half portion and a diameter-increasing slit of the diameter-enlarging and deforming portion are formed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7324739A JP2918831B2 (en) | 1995-12-13 | 1995-12-13 | Rotating body fixture |
| US08/747,959 US5851084A (en) | 1995-12-13 | 1996-11-12 | Rotor fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7324739A JP2918831B2 (en) | 1995-12-13 | 1995-12-13 | Rotating body fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09166149A true JPH09166149A (en) | 1997-06-24 |
| JP2918831B2 JP2918831B2 (en) | 1999-07-12 |
Family
ID=18169154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7324739A Expired - Fee Related JP2918831B2 (en) | 1995-12-13 | 1995-12-13 | Rotating body fixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2918831B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012081986A (en) * | 2010-10-13 | 2012-04-26 | Sanko Kikai Kk | Movable longitudinal seal roll mechanism in roll type automatic packaging machine |
-
1995
- 1995-12-13 JP JP7324739A patent/JP2918831B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012081986A (en) * | 2010-10-13 | 2012-04-26 | Sanko Kikai Kk | Movable longitudinal seal roll mechanism in roll type automatic packaging machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2918831B2 (en) | 1999-07-12 |
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