JPS599767B2 - Fixing device for rotating body to shaft - Google Patents
Fixing device for rotating body to shaftInfo
- Publication number
- JPS599767B2 JPS599767B2 JP52103209A JP10320977A JPS599767B2 JP S599767 B2 JPS599767 B2 JP S599767B2 JP 52103209 A JP52103209 A JP 52103209A JP 10320977 A JP10320977 A JP 10320977A JP S599767 B2 JPS599767 B2 JP S599767B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- rotating body
- tightening
- tightening nut
- fitting
- 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.)
- Expired
Links
Landscapes
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Description
【発明の詳細な説明】
この発明は軸に対する回転体の固定装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for fixing a rotating body to a shaft.
軸に対して回転体を固定する場合、例えばＶＴＲのキャ
プスタン軸端部に回転速度検出のだめの回転円板あるい
は回転ヘッドを固定する場合などのように、特に小径か
つ精密に仕上げられた軸に対して回転体を固定する場合
には、一般に、スラスト方向からの締付けナットによる
締着が用いられているが、締付けナットの加工精度不良
があると締付けナットの締着により軸が曲りを生ずるた
め、これに応じて回転体と軸との相対角度が不正規とな
り、回転体を軸に対して直角な角度に固定することが困
難となる欠点を生ずるものであった。When fixing a rotating body to a shaft, for example, when fixing a rotating disk or a rotating head for detecting rotational speed to the end of a VTR capstan shaft, this is especially true for shafts with small diameters and precisely finished. On the other hand, when fixing a rotating body, tightening with a tightening nut from the thrust direction is generally used, but if there is poor machining accuracy of the tightening nut, the shaft may bend due to tightening of the tightening nut. Accordingly, the relative angle between the rotating body and the shaft becomes irregular, resulting in a drawback that it is difficult to fix the rotating body at an angle perpendicular to the axis.
すなわち、前記した締付けナットによる締着について説
明すると、第１図に示されているように、軸１０１の軸
端に肩部１０２を介して嵌合軸端１０３を形成し、かつ
、との嵌合軸部１０３の延長上におねじ１０５を刻設し
たねじ軸部１０４を設けたうえ、回転円板または回転ヘ
ッド等の回転体１０６における嵌合軸部１０３の外径よ
りわずかに大きい内径を有する嵌合穴部１０７を、嵌合
軸部１０３に一方の端縁１０８を突き当て遊びの少ない
状態として嵌合させると共に、締付けナット１１０のめ
ねじ１１１をねじ軸部１０４のおねじ１０５に螺合させ
たうえ、この締付けナット１１０の締付け面１１２が回
転体１０６の他方の端縁１０９に対し押圧状態となるま
で締付けナット１１０を締着するようにしている。That is, to explain the tightening using the above-mentioned tightening nut, as shown in FIG. A threaded shaft portion 104 with a thread 105 carved therein is provided on an extension of the mating shaft portion 103, and an inner diameter of a rotating body 106 such as a rotating disk or a rotating head is slightly larger than the outer diameter of the mating shaft portion 103. The fitting hole portion 107 is fitted into the fitting shaft portion 103 with one end edge 108 butted with little play, and the female thread 111 of the tightening nut 110 is screwed into the male thread 105 of the screw shaft portion 104. In addition, the tightening nut 110 is tightened until the tightening surface 112 of the tightening nut 110 is pressed against the other end edge 109 of the rotating body 106.
しかし乍らこのような従来の固定装置では、締付ナット
１１０のめねじ１１１と締付け面１１２との直角度が正
確でないときには、締付け面１１２と端縁１０９との間
の押圧力が、ねじ軸部１０４を中心とする円周上の各方
向において不均等となり、この不均等な押圧力によって
、最も強度の弱い部分、すなわち、比較的小径の嵌合軸
部１０３あるいは、ねじ軸部１０４が曲げられてしまい
、軸１０１の延長方向と回転体１０６の回転面とが直角
とならず、第２図に誇張して示す状態と々る。However, in such a conventional fixing device, when the perpendicularity between the female thread 111 of the tightening nut 110 and the tightening surface 112 is not accurate, the pressing force between the tightening surface 112 and the edge 109 is This is uneven in each direction on the circumference around the portion 104, and due to this uneven pressing force, the weakest portion, that is, the relatively small diameter fitting shaft portion 103 or the screw shaft portion 104 is bent. As a result, the extension direction of the shaft 101 and the rotating surface of the rotating body 106 are not perpendicular to each other, resulting in the state shown in an exaggerated manner in FIG.
この発明はこのような従来の実情に鑑み、特に高精度の
加工を必要とすることなく、微調整機構を設けることに
より、回転体を軸に対して直角に固定しようとするもの
であって、締付けナットの締付け面に対して、螺進退に
より出没調整し得るようにした少なくとも３個の押ねじ
を、同心円上にほソ等角間隔で締付けナットに螺合させ
たものである。In view of such conventional circumstances, the present invention attempts to fix a rotating body at right angles to the axis by providing a fine adjustment mechanism without requiring particularly high precision machining. At least three setscrews, which can be adjusted to protrude and retract by advancing and retracting the screws from the tightening surface of the tightening nut, are screwed onto the tightening nut at equal angular intervals on a concentric circle.
以下この発明の実施例につき、第３図ないし第５図を参
照して詳細に説明する。Embodiments of the present invention will be described in detail below with reference to FIGS. 3 to 5.
第３図はこの発明のー★施例を適用した軸に対する回転
体の固定状態を示す断面図、第４図は同上平面図であっ
て、これら第３図および第４図においては、前記従来例
と同様に、軸１の軸端には、肩部２を介して嵌合軸部３
とおねじ５を刻設したねじ軸部４とが形成してあり、か
つ、回転体旦には嵌合軸部３へ嵌合させる嵌合軸部３の
外径よりわずかに大きい内径の嵌合穴部７が形成してあ
ると共に、端縁８，９が形成してある。FIG. 3 is a sectional view showing a fixed state of the rotating body to the shaft to which the embodiment of the present invention is applied, and FIG. 4 is a plan view of the same. Similarly to the example, the shaft end of the shaft 1 has a fitting shaft portion 3 through the shoulder portion 2.
and a threaded shaft portion 4 with a male thread 5 carved therein, and the inner diameter of the fitting shaft portion 3 is slightly larger than the outer diameter of the fitting shaft portion 3 that is fitted into the fitting shaft portion 3 when the rotating body is mounted. A hole 7 is formed and edges 8, 9 are formed.
一方、めねじ１１を刻設のうえ締付け面１２を備えた締
付けナット１０には、めねじ１１と平行もしくはほぼ平
行に締付け面１２に向けて、かつ、同心田上に等角間隔
により３個のねじ孔１３を形成し、これら各なじ孔１３
には各々押ねじ１４を螺合させている。On the other hand, a tightening nut 10 having a female thread 11 and a tightening surface 12 has three nuts arranged parallel to or almost parallel to the female thread 11 and spaced at equal angular intervals on a concentric field. A screw hole 13 is formed, and each of these same holes 13
A set screw 14 is screwed into each.
従って、この実施例においても前記従来例と同様に、軸
１の嵌合軸部３に回転体旦の嵌合穴部７を、一方の端縁
８が肩部２に押当するものとして嵌合させ、かつ、締付
けナット１０のめねじ１１をねじ軸部４のおねじ５に螺
合させたうえ、この締付けナット１０の締付け面１２が
他方の端縁９に対し抑圧状態となるまで締付けナット１
０を締付けることによって締着作用を得ることができる
。Therefore, in this embodiment, similarly to the conventional example, the fitting hole 7 of the rotating body is fitted into the fitting shaft 3 of the shaft 1 with one edge 8 pressed against the shoulder 2. Then, the female thread 11 of the tightening nut 10 is screwed into the male thread 5 of the screw shaft portion 4, and then tightened until the tightening surface 12 of the tightening nut 10 is pressed against the other edge 9. nut 1
A tightening effect can be obtained by tightening 0.
ここにおいて、締付けナット１０のめねじ１１と締付け
面１２との直角度が不良であれば、この締付けナット１
０の締付けに伴なって、締付け面１２と取付け部材６の
端縁９との間には、第３図に符号１５により示す隙間を
生ずるが、この発明では、締付けナット１０に螺合され
ているところの、隙間１５を生じた部分の押ねじ１４あ
るいは隙間１５を生じた部分に近い個々の押ねじ１４を
螺進させ、押ねじ１４の先端部を締付け面１２から端縁
９に突き当るまで突出させることにより、この隙間１５
を埋めることができる。Here, if the perpendicularity between the female thread 11 of the tightening nut 10 and the tightening surface 12 is poor, this tightening nut 1
0, a gap is created between the tightening surface 12 and the edge 9 of the mounting member 6, as indicated by the reference numeral 15 in FIG. The set screw 14 in the part where the gap 15 is created, or the individual set screws 14 near the part where the gap 15 is created, is threaded, and the tip of the set screw 14 hits the edge 9 from the tightening surface 12. By protruding up to 15 mm, this gap 15
can be filled.
したがって、この操作により、締付けナット１０の締付
け面１２による端縁９への不均等な押圧力が補正され、
この不均等な抑圧による嵌合軸部３あるいはねじ軸部４
の曲りを防止することができる。Therefore, by this operation, the uneven pressing force exerted on the edge 9 by the tightening surface 12 of the tightening nut 10 is corrected,
The fitting shaft portion 3 or screw shaft portion 4 due to this uneven compression
can prevent bending.
なお、前記締付けナット１０の締付けにより、各軸部３
あるいは４がすでに曲がってしまった場合でも、曲げら
れた側にある押ねじ１４を螺進させることにより、各軸
部３あるいは４の曲がりを簡単に修正することができる
。Note that by tightening the tightening nut 10, each shaft portion 3
Alternatively, even if the shaft portion 4 is already bent, the bending of each shaft portion 3 or 4 can be easily corrected by threading the set screw 14 on the bent side.
たソし、前記押ねじ１４の個数は、多ければ効果的では
あるが、実用上、押圧力を均衡させるためには、少なく
とも３個以上乃至６個以内程度で充分となる。Although it is more effective to have a larger number of push screws 14, in practice, at least 3 to 6 is sufficient in order to balance the pressing force.
また、前記回転体６が、例えばアルミニウム合金などの
ように軟かい材質の場合には、第５図に示したように、
前記押ねじ１４の先端部が端縁９内に陥没するのを避け
るため、比較的硬い材質のスペーサ１６を介在させれば
好適である。Further, if the rotating body 6 is made of a soft material such as an aluminum alloy, as shown in FIG.
In order to prevent the tip of the set screw 14 from sinking into the edge 9, it is preferable to interpose a spacer 16 made of a relatively hard material.
，以上詳述したようにこの発明によれば、軸の嵌合軸部
に回転体の嵌合穴部を嵌合させ、かつ、嵌合軸部から突
設したねじ軸部に締付けナットを螺合して締着固定する
場合、締付けナットの締付け面に対して、螺進退操作に
より出没調整し得るようにした少なくとも３個の押ねじ
を、ほぼ同心田上にかつほぼ等角間隔で締付けナットに
螺合させているため、締付けナットの製作に際し、特に
高精度加工を施すことなく、押ねじの螺進退操作により
軸の曲がりを簡単に防止し、あるいは修正し得ると共に
、締着力を均衡させることが容易となり、かつ、安価に
固定装置を提供できるなどの利点を有し、特に小径軸に
対する回転体の固定上効果的である。As detailed above, according to the present invention, the fitting hole of the rotating body is fitted into the fitting shaft of the shaft, and the tightening nut is screwed into the threaded shaft protruding from the fitting shaft. When tightening and fixing the nuts together, at least three setscrews that can be adjusted to protrude and retract by screwing in and out of the tightening surface of the tightening nut should be installed on the tightening nut approximately concentrically and at approximately equal angular intervals. Because they are screwed together, when manufacturing the tightening nut, it is possible to easily prevent or correct the bending of the shaft by advancing and retracting the push screw, and to balance the tightening force without performing any particularly high-precision machining. This has the advantage that the fixing device can be provided easily and at low cost, and is particularly effective for fixing a rotating body to a small diameter shaft.
第１図は従来の固定装置による軸に対する回転体の固定
状態を示す断面図、第２図は同上軸曲りを生じた状態を
誇張して示す断面図、第３図以降はこの発明の実施例を
示し、第３図は軸に対する回転体の固定状態を示す断面
図、第４図は同上平面図、第５図は同上他の実施例を示
す断面図である。
１・・・・・・軸、２・・・・・・肩部、３・・・・・
・嵌合軸部、４・・・・・・ねじ軸部、５・・・・・・
おねじ、旦・・・・・・回転体、７・・・・・・嵌合穴
部、８，９・・・・・・端縁、１０・・・・・・締付け
ナット、１１・・・・・・めねじ、１２・・・・・・締
付け面、１３・・・・・・ねじ孔、１４・・・・・・押
ねし、１６・・・・・・スペーサ。FIG. 1 is a cross-sectional view showing a state in which a rotary body is fixed to a shaft by a conventional fixing device, FIG. FIG. 3 is a sectional view showing a state in which the rotating body is fixed to the shaft, FIG. 4 is a plan view of the same, and FIG. 5 is a sectional view showing another embodiment of the same. 1...Axle, 2...Shoulder, 3...
・Mating shaft part, 4... Screw shaft part, 5...
Male thread, male... Rotating body, 7... Fitting hole, 8, 9... End edge, 10... Tightening nut, 11... ... Female thread, 12 ... Tightening surface, 13 ... Threaded hole, 14 ... Push, 16 ... Spacer.
Claims (1)
せると共に、嵌合軸部の延長上に設けたねじ軸部に締付
けナットを螺合して前記回転体を締着固定する装置にお
いて、前記締付けナットの締付け面に対して、螺進退操
作により出没調整し得るようにした少なくとも３個の押
ねじをほぼ同心円上にほぼ等角間隔で前記締付けナット
に螺合させたことを特徴とする軸に対する回転体の固定
装置。1. Fit the fitting hole of the rotating body into the fitting shaft formed on the shaft, and tighten the rotating body by screwing a tightening nut into the threaded shaft provided on the extension of the fitting shaft. In the fixing device, at least three set screws that can be adjusted to protrude and retract by screwing forward and backward from the tightening surface of the tightening nut are screwed onto the tightening nut at approximately equal angular intervals on a substantially concentric circle. A device for fixing a rotating body to a shaft, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52103209A JPS599767B2 (en) | 1977-08-30 | 1977-08-30 | Fixing device for rotating body to shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52103209A JPS599767B2 (en) | 1977-08-30 | 1977-08-30 | Fixing device for rotating body to shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5438462A JPS5438462A (en) | 1979-03-23 |
| JPS599767B2 true JPS599767B2 (en) | 1984-03-05 |
Family
ID=14348112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52103209A Expired JPS599767B2 (en) | 1977-08-30 | 1977-08-30 | Fixing device for rotating body to shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599767B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0744452B2 (en) * | 1986-03-31 | 1995-05-15 | アンリツ株式会社 | Clock reproduction circuit |
| JP2002276616A (en) * | 2001-03-22 | 2002-09-25 | Kayaba Ind Co Ltd | Locking mechanism |
| JP6934161B2 (en) * | 2017-02-24 | 2021-09-15 | ボルトエンジニア株式会社 | Fastening structure |
-
1977
- 1977-08-30 JP JP52103209A patent/JPS599767B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5438462A (en) | 1979-03-23 |
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