JPH0312973Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は軸受の固定金具、詳しくは、軸受用支
持孔をもつ軸支持部材に、軸受を固定する軸受の
固定金具に関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a bearing fixture, and more particularly, to a bearing fixture for fixing a bearing to a shaft support member having a bearing support hole.

（従来の技術） 従来、この種軸受の固定手段として、第４図に
示す如く軸支持部材Ａの軸受用支持孔Ｂに挿通可
能とした押圧部Ｃをもつ押え金具Ｄを用い、該押
え金具Ｄを前記軸支持部材Ａの外壁にボルトＥ，
Ｅにより螺着することにより前記押圧部Ｃが、軸
受Ｆの外輪Ｇ側壁を該軸受Ｆの内輪Ｈ内に支持す
る軸Ｉの係止段部Ｊ側に押圧して、該軸受Ｆ、つ
まり軸Ｉの軸方向への移動を不能に取付けてい
る。(Prior art) Conventionally, as a means for fixing this type of bearing, a presser metal fitting D having a pressing portion C that can be inserted into a bearing support hole B of a shaft support member A is used as shown in FIG. D to the outer wall of the shaft support member A with bolts E,
By screwing E, the pressing part C presses the side wall of the outer ring G of the bearing F to the side of the locking step J of the shaft I supported in the inner ring H of the bearing F, and the bearing F, that is, the shaft I is installed so that it cannot move in the axial direction.

（考案が解決しようとする問題点） ところで、上記従来の押え金具Ｄを用いて軸受
Ｆを軸支持部材Ａの支持孔Ｂに固定する場合、前
記押圧部Ｃの突出長さが前記軸支持部材Ａの外壁
から前記軸受Ｆにおける外輪Ｇの側壁までの長さ
に対して短かすぎると、前記軸受Ｆと押圧部Ｃと
の間に隙間が生じ、軸受Ｈ及び軸Ｉが軸方向へガ
タ付く問題があり、また、前記押圧部Ｃの突出長
さが長すぎると、該押圧部Ｃが軸受Ｆの外輪Ｇを
押えすぎて軸受Ｆの機能に悪影響を与え、軸受Ｆ
の寿命を短かくする問題があり、このため、前記
押圧部Ｃの突出長さが前記軸支持部材Ａの外壁か
ら前記軸受Ｆの外輪Ｇ側壁までの長さと同一寸法
となるよう精度良く製作するためには、前記押え
金具Ｄを高精度で製作することが必要であるばか
りか、各部品全ての精度も高める必要があり、こ
のように各部品の精度を高めることは非常に困難
となる問題があつた。(Problem to be Solved by the Invention) By the way, when the bearing F is fixed to the support hole B of the shaft support member A using the conventional presser fitting D, the protruding length of the pressing portion C is longer than the length of the shaft support member If the length is too short compared to the length from the outer wall of A to the side wall of the outer ring G in the bearing F, a gap will be created between the bearing F and the pressing part C, and the bearing H and shaft I will wobble in the axial direction. In addition, if the protruding length of the pressing part C is too long, the pressing part C presses the outer ring G of the bearing F too much, which adversely affects the function of the bearing F.
Therefore, the protruding length of the pressing part C is precisely manufactured to be the same as the length from the outer wall of the shaft support member A to the side wall of the outer ring G of the bearing F. In order to do this, it is not only necessary to manufacture the presser metal fitting D with high precision, but also to increase the precision of all of the parts, which makes it extremely difficult to increase the precision of each part. It was hot.

その上、前記軸支持部材Ａの外壁には、押え金
具Ｄをねじ体Ｅにより螺着するためのねじ孔Ｋを
特別に加工する必要があり、その加工も面倒で手
間を要するものであつた。 Moreover, it was necessary to specially machine a screw hole K in the outer wall of the shaft support member A for screwing the presser metal fitting D with the screw body E, and this process was also troublesome and time-consuming. .

本考案の目的は、製作精度が多少悪くとも、軸
受や軸が軸方向にガタ付いたり、或いは軸受を押
えすぎて該軸受の寿命を短かくすることなく、前
記軸受を軸支持部材の所定位置に正確に固定する
ことができ、その上、軸支持部材に特別な加工を
施こすことなく前記軸受を固定できる軸受の固定
金具を提供しようとするものである。 The purpose of the present invention is to hold the bearing at a predetermined position on the shaft support member without causing the bearing or shaft to wobble in the axial direction or to press the bearing too much, thereby shortening the life of the bearing, even if the manufacturing accuracy is somewhat poor. It is an object of the present invention to provide a bearing fixing fitting that can be accurately fixed to the shaft support member and that also allows the bearing to be fixed without performing any special processing on the shaft support member.

（問題点を解決するための手段） 本考案は、軸支持部材の軸受用支持孔に挿通可
能で、前記軸受における外輪の側壁に当接する当
接部をもつ押え体と、該押え体に螺合するねじ体
と前記支持孔に挿通可能な外周をもち、前記ねじ
体の前記押え体への螺合により、外周を弾性的に
拡径する止体とから成り、前記ねじ体の前記押え
体への螺合により前記止体の外周を前記支持孔の
内周面に圧接して、前記押圧体を前記支持孔に固
定する如く成したことを特徴とするものである。(Means for Solving the Problems) The present invention includes a presser body that can be inserted into a bearing support hole of a shaft support member and has a contact portion that abuts against the side wall of the outer ring of the bearing, and a presser member that is screwed into the presser body. The presser body of the screw body is composed of a mating screw body and a stopper body having an outer periphery that can be inserted into the support hole and whose outer periphery elastically expands in diameter by screwing the screw body to the presser body. The outer periphery of the stopper body is pressed against the inner circumferential surface of the support hole by screwing into the support hole, thereby fixing the pressing body to the support hole.

（作用） 上記構成により前記押え体の当接部を軸受にお
ける外輪の外壁に当接させた状態で、前記ねじ体
を押え体に螺合することにより、前記止体の外周
を弾性的に拡径して前記支持孔の内周面に圧接
し、前記押え体を前記支持孔に固定し、前記軸受
を押えすぎたりすることなく、該軸受を移動不能
に固定できるのである。(Function) With the above configuration, the outer periphery of the stop body is elastically expanded by screwing the screw body into the hold body while the contact portion of the presser body is in contact with the outer wall of the outer ring of the bearing. The bearing can be immovably fixed without pressing the bearing too much by fixing the presser body to the support hole by press-contacting the inner circumferential surface of the support hole.

（実施例） 第１図は本考案固定金具の軸を両持状に軸受す
る際に適用した軸支持構造を示すもので、第１図
において１，２は所定間隔をおいて相対向する一
対の軸受用支持孔１１，２１をもつフレームなど
の軸支持部材１，２で、これら両軸支持部材１，
２の各支持孔１１，２１内には、それぞれ軸受
３，４が挿嵌され、かつ、前記軸支持部材１，２
のうち、一方側軸支持部材１の支持孔１１には前
記軸受３の外輪３１と係合する係合部１２が形成
されている。５は中間部に大径部５１をもち、該
大径部５１の両端に前記軸受３，４の内輪３２，
４２と係合する段部５２，５３をもつた軸で、該
軸５の一端部を一方の軸受３の内輪３２内に挿通
支持させ、他端部を他方の軸受４の内輪４２内に
挿通支持させ、かつ、該軸受４を前記他方側軸支
持部材２の支持孔２１内周面に固定金具を用いて
固定すべく成している。(Example) Fig. 1 shows a shaft support structure applied when the shaft of the fixing fitting of the present invention is supported on both sides. Shaft support members 1, 2 such as frames having bearing support holes 11, 21, these shaft support members 1,
Bearings 3 and 4 are inserted into the support holes 11 and 21 of the shaft support members 1 and 2, respectively, and the shaft support members 1 and 2
An engaging portion 12 that engages with the outer ring 31 of the bearing 3 is formed in the support hole 11 of the shaft support member 1 on one side. 5 has a large diameter part 51 in the middle part, and the inner rings 32 of the bearings 3 and 4 are attached to both ends of the large diameter part 51.
42, one end of the shaft 5 is inserted and supported within the inner ring 32 of one bearing 3, and the other end is inserted into the inner ring 42 of the other bearing 4. At the same time, the bearing 4 is fixed to the inner peripheral surface of the support hole 21 of the other side shaft support member 2 using a fixing metal fitting.

しかして、本考案は前記軸受４を前記支持孔２
１の内周面に固定する固定金具として、前記支持
孔２１に挿通可能で、前記軸受４における外軸４
１の側壁に当接する環状の当接部６１をもつ円形
状押え体６と、該押え体６に螺合するねじ体７と
前記支持孔２１に挿通可能な外周をもつ皿ばねな
どの止体８とから成り、前記押え体６の中央に前
記ねじ体７の螺合するねじ孔６２を形成すると共
に、前記止体８の中央に前記ねじ体７の挿通可能
な挿通孔８１を形成して、前記ねじ体７の押え体
６への螺合により前記止体８の外周を弾性的に拡
径して前記支持孔２１の内周面に圧接し、前記押
え体６を前記支持孔２１に固定する如く成したの
である。 Therefore, in the present invention, the bearing 4 is connected to the support hole 2.
As a fixing metal fitting fixed to the inner circumferential surface of the bearing 4, it can be inserted into the support hole 21, and the outer shaft 4 of the bearing 4.
a circular presser body 6 having an annular contact portion 61 that comes into contact with the side wall of the presser body 6; a screw body 7 that screws into the presser body 6; and a stopper body such as a disc spring having an outer periphery that can be inserted into the support hole 21. 8, a screw hole 62 into which the screw body 7 is screwed is formed in the center of the presser body 6, and an insertion hole 81 through which the screw body 7 can be inserted is formed in the center of the stop body 8. By screwing the screw body 7 into the presser body 6, the outer periphery of the stopper body 8 is elastically expanded in diameter and brought into pressure contact with the inner peripheral surface of the support hole 21, and the presser body 6 is inserted into the support hole 21. It was made to be fixed.

本考案は以上の如く構成するもので、その使用
に際しては、前記各軸支持部材１，２の支持孔１
１，２１内に軸受３，４を挿嵌し、これら軸受
３，４の内輪３２，４２に軸５の両端部をそれぞ
れ挿通した後、前記他方側支持部材２の支持孔２
１内に、前記軸受４の外側から押え体６を挿入し
て、該押え体６の当接部６１を軸受４の外輪４１
の外壁に当接させることにより、一方の軸受３の
外輪３１と前記係合部１２との隙間及び内輪３２
と軸５の段部５１との隙間をなくすると共に、他
方の軸受４の内輪４１と軸５の段部５２との隙間
をなくし、かつ、前記ねじ体７の押え体６への螺
合により前記止体８の外周を弾性的に拡径して前
記支持孔２１の内周面に圧接し、前記押え体６を
前記支持孔２１に固定して、前記軸受３，４の軸
方向への移動を不能にするのである。 The present invention is constructed as described above, and when using it, the support holes 1 and 2 of each of the shaft support members 1 and 2 are
After inserting the bearings 3 and 4 into the inner rings 32 and 42 of these bearings 3 and 4, and inserting both ends of the shaft 5 into the inner rings 32 and 42 of these bearings 3 and 4, respectively, the support hole 2 of the other side support member 2 is inserted.
1, insert the presser body 6 from the outside of the bearing 4, and press the contact portion 61 of the presser body 6 against the outer ring 41 of the bearing 4.
The gap between the outer ring 31 of one bearing 3 and the engaging portion 12 and the inner ring 32 are
By eliminating the gap between the inner ring 41 of the other bearing 4 and the step 51 of the shaft 5, and by screwing the threaded body 7 into the presser body 6, The outer periphery of the stopper body 8 is elastically enlarged and pressed against the inner circumferential surface of the support hole 21, and the presser body 6 is fixed to the support hole 21, so that the bearings 3 and 4 are moved in the axial direction. It makes movement impossible.

斯かる固定により、押え体６と軸受４との間に
隙間が生じて軸５の軸方向へのガタ付きが発生し
たり、或いは押え体６の軸受４の押えすぎによる
軸受３，４の寿命が短縮されることなく、正確か
つ確実に固定できるのである。 Such fixing may create a gap between the presser body 6 and the bearing 4, causing the shaft 5 to wobble in the axial direction, or may shorten the life of the bearings 3 and 4 due to the presser body 6 pressing down the bearing 4 too much. It can be fixed accurately and reliably without being shortened.

（考案の効果） 以上の如く本考案は、軸支持部材の軸受用支持
孔に挿通可能で、前記軸受における外輪の側壁に
当接する当接部をもつ押え体と、該押え体に螺合
するねじ体と前記支持孔に挿通可能な外周をも
ち、前記ねじ体の前記押え体への螺合により、外
周を弾性的に拡径する止体とから成り、前記ねじ
体の前記押え体への螺合により前記止体の外周を
前記支持孔の内周面に圧接して、前記押圧体を前
記支持孔に固定する如く成したことを特徴とする
ものであるから、各部品の製作精度を殊に高くし
なくとも、前記押え体により軸受を押えすぎたり
することなく、該軸受を移動不能に固定すること
ができ、これにより、軸が軸方向にガタ付いたり
或いは軸受の寿命を短かくすることなく固定で
き、その上、軸支持部材には前記押え体を固定す
るための面倒な加工は何ら施こす必要がないので
ある。(Effects of the invention) As described above, the present invention provides a presser body that can be inserted into a bearing support hole of a shaft support member and has a contact portion that abuts the side wall of the outer ring of the bearing, and a presser body that is screwed onto the presser body. It consists of a screw body and a stopper body having an outer periphery that can be inserted into the support hole, and whose outer periphery elastically expands in diameter when the screw body is screwed into the presser body, It is characterized in that the outer periphery of the stopper body is pressed against the inner circumferential surface of the support hole by screwing, so that the pressing body is fixed to the support hole, so that the manufacturing accuracy of each part can be improved. Even if it is not particularly high, the bearing can be immovably fixed without pressing the bearing too much with the presser body, thereby preventing the shaft from wobbling in the axial direction or shortening the life of the bearing. Moreover, there is no need to perform any troublesome processing on the shaft support member for fixing the presser body.

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

第１図は本考案固定金具を用いた軸支持構造を
示す縦断面図、第２図は押え体の正面図、第３図
は止体の正面図、第４図は従来の軸支持構造を示
す縦断面図である。 ２……軸支持部材、２１……軸受用支持孔、４
……軸受、５……軸、６……押え体、７……ねじ
体、８……止体。 Fig. 1 is a longitudinal sectional view showing a shaft support structure using the fixing fitting of the present invention, Fig. 2 is a front view of the presser body, Fig. 3 is a front view of the stopper body, and Fig. 4 is a diagram showing the conventional shaft support structure. FIG. 2... Shaft support member, 21... Bearing support hole, 4
... bearing, 5 ... shaft, 6 ... presser body, 7 ... screw body, 8 ... stop body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸受用支持孔をもつ軸支持部材に、軸受を固定
する軸受の固定金具であつて、前記支持孔に挿通
可能で、前記軸受における外輪の側壁に当接する
当接部をもつ押え体と、該押え体に螺合するねじ
体と前記支持孔に挿通可能な外周をもち、前記ね
じ体の前記押え体への螺合により、外周を弾性的
に拡径する止体とから成り、前記ねじ体の前記押
え体への螺合により前記止体の外周を前記支持孔
の内周面に圧接して、前記押圧体を前記支持孔に
固定する如く成したことを特徴とする軸受の固定
金具。 a bearing fixing fitting for fixing a bearing to a shaft support member having a bearing support hole; The screw body is composed of a screw body that is screwed into the presser body, and a stopper body that has an outer periphery that can be inserted into the support hole, and whose outer periphery is elastically expanded in diameter when the screw body is screwed into the presser body. A bearing fixing fitting, characterized in that the outer periphery of the stopper body is pressed against the inner circumferential surface of the support hole by screwing onto the presser body, thereby fixing the presser body to the support hole.