JPH0121237Y2 - - Google Patents
Info
- Publication number
- JPH0121237Y2 JPH0121237Y2 JP1983064255U JP6425583U JPH0121237Y2 JP H0121237 Y2 JPH0121237 Y2 JP H0121237Y2 JP 1983064255 U JP1983064255 U JP 1983064255U JP 6425583 U JP6425583 U JP 6425583U JP H0121237 Y2 JPH0121237 Y2 JP H0121237Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- guide surfaces
- shaft member
- bearings
- cam follower
- 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
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000036316 preload Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、一般産業機械のガイドローラ及び
リンク機構部等に利用され、特に2つの案内面を
対向配置するカム溝に挿入されるカムフオロアに
関する。[Detailed Description of the Invention] Industrial Field of Use This invention is used in guide rollers, link mechanisms, etc. of general industrial machinery, and particularly relates to a cam follower inserted into a cam groove in which two guide surfaces are arranged facing each other.
従来の技術
従来のカムフオロアは第1図に示すように、外
輪1と、軸端に転動体案内鍔を有し、内輪を兼ね
る段付の軸部材2との間に転動体3を配し、か
つ、軸部材2上にシール兼位置決め用のカラー4
を挿入し、軸部材2を取付部材5にナツト6で締
着している。BACKGROUND ART As shown in FIG. 1, a conventional cam follower has rolling elements 3 disposed between an outer ring 1 and a stepped shaft member 2 which has a rolling element guide collar at the shaft end and also serves as an inner ring. In addition, a collar 4 for sealing and positioning is provided on the shaft member 2.
is inserted, and the shaft member 2 is fastened to the mounting member 5 with a nut 6.
考案が解決しようとする問題点
上記カムフオロアは第2図に示すように、互い
に平行な2つの案内面7,7′を有するカム溝8
に挿入して取付部材5を案内するのであるが、外
輪1の外周面とカム溝8の一方の案内面7′との
間には必然的にスキマSを設ける必要がある。す
なわち、カムフオロアの外輪1を両方の案内面
7,7′に当接させてしまうと、各案内面に対す
る外輪1の転動方向が逆になるため、回転ができ
なくなるという不都合が生じる。ところが、この
スキマSは多くの機械にとつては非常に好ましく
ないガタの原因となる。このガタを解消するに
は、カムフオロアを2箇所に配置して、カム溝8
の案内面7,7′に別々に当接させるようにしな
ければならなかつた。Problems to be Solved by the Invention As shown in FIG. 2, the cam follower has a cam groove 8 having two mutually parallel guide surfaces 7 and 7'.
However, it is necessary to provide a gap S between the outer peripheral surface of the outer ring 1 and one guide surface 7' of the cam groove 8. That is, if the outer ring 1 of the cam follower is brought into contact with both guide surfaces 7, 7', the rolling direction of the outer ring 1 with respect to each guide surface will be reversed, resulting in the inconvenience that rotation will not be possible. However, this gap S causes extremely undesirable play in many machines. To eliminate this backlash, place the cam follower in two locations and
The guide surfaces 7 and 7' had to be brought into contact with each other separately.
この考案は、良好な作動性を確保しつつ、カム
溝の案内面との間にガタが生じることのないよう
にしたカムフオロアを提供せんとするものであ
る。 This invention aims to provide a cam follower that ensures good operability and prevents play from occurring between the cam follower and the guide surface of the cam groove.
問題点を解決するための手段
この考案は、一つの軸部材に、転動体を介して
外輪を回転自在に支承してなる軸受を2列に並設
し、これらの軸受の回転中心を偏位させることに
よつて、カム溝の対向案内面の一方に1つの軸受
が当接し、他方の案内面にもう一つの軸受が当接
するようにした。Means for Solving the Problems This invention involves arranging two rows of bearings, each of which rotatably supports an outer ring via rolling elements, on one shaft member, and offsets the center of rotation of these bearings. By doing so, one bearing is brought into contact with one of the opposed guide surfaces of the cam groove, and the other bearing is brought into contact with the other guide surface.
実施例
第3図はこの考案の一実施例たるカムフオロア
を示し、9は互いに平行な2つの案内面10,1
0′を有するカム溝、11は軸端に転動体案内鍔
を有する段付の軸部材、12は軸部材11の大径
部11aと外輪13との間に転動体14を配して
なる第1の軸受である。15は第1の軸受12に
対して回転中心を偏位させた第2の軸受で、軸部
材11の小径部11bに偏心リング16を装着
し、この偏心リング16と外輪17との間に転動
体18を配してなる。この実施例では両外輪1
3,17の外径は等しい。そうして、第1および
第2の軸受12,15とカム溝9の第1及び第2
の案内面10,10′との関係は次のようになつ
ている。すなわち、第1の軸受12の外輪13は
カム溝9の第1の案内面10と接触して第2の案
内面10′との間には隙間があり、また、第2の
軸受15の外輪17はカム溝9の第2の案内面1
0′と接触して第1の案内面10との間には隙間
がある。第1の軸受12と第2の軸受15との偏
心量すなわち、カム溝9の横断面における軸心間
距離は、カム溝9の案内面10,10′間の寸法
に対応するが、この実施例の場合、偏心リング1
6の角度位置によつて偏心量を変えることができ
る。Embodiment FIG. 3 shows a cam follower as an embodiment of this invention, in which reference numeral 9 denotes two mutually parallel guide surfaces 10, 1.
0', 11 is a stepped shaft member having a rolling element guide flange at the shaft end, and 12 is a stepped shaft member with rolling elements 14 disposed between the large diameter portion 11a of the shaft member 11 and the outer ring 13. 1 bearing. 15 is a second bearing whose rotation center is offset from the first bearing 12; an eccentric ring 16 is attached to the small diameter portion 11b of the shaft member 11; A moving body 18 is arranged. In this example, both outer rings 1
3 and 17 have the same outer diameter. Then, the first and second bearings 12 and 15 and the first and second bearings of the cam groove 9 are
The relationship between the guide surfaces 10 and 10' is as follows. That is, the outer ring 13 of the first bearing 12 contacts the first guide surface 10 of the cam groove 9, and there is a gap between the outer ring 13 and the second guide surface 10'. 17 is the second guide surface 1 of the cam groove 9
0' and the first guide surface 10, there is a gap. The amount of eccentricity between the first bearing 12 and the second bearing 15, that is, the distance between the axes in the cross section of the cam groove 9 corresponds to the dimension between the guide surfaces 10 and 10' of the cam groove 9. In the example case, eccentric ring 1
The amount of eccentricity can be changed by changing the angular position of 6.
なお、図中、19は軸部材11を取り付ける取
付部材、20は取付部材19に軸部材11を締着
するためのナツト、21は第1の軸受12と第2
の軸受15との間に配された間座である。 In addition, in the figure, 19 is a mounting member for attaching the shaft member 11, 20 is a nut for fastening the shaft member 11 to the mounting member 19, and 21 is a first bearing 12 and a second bearing.
This is a spacer disposed between the bearing 15 and the bearing 15.
この実施例によれば、一つの軸部材11に外径
の等しい2個の軸受12,15を並設し、両軸受
12,15の回転中心を偏位させて軸受外輪1
3,17がそれぞれ別々の案内面10,10′に
だけ当接するようにしたので、案内面10,1
0′間でガタをなくすることができ、しかも、両
軸受の外輪はいずれも円滑に回転でき、良好な作
動性が得られる。 According to this embodiment, two bearings 12 and 15 having the same outer diameter are arranged side by side on one shaft member 11, and the rotation centers of both bearings 12 and 15 are offset to form a bearing outer ring 1.
3 and 17 contact only the separate guide surfaces 10 and 10', so that the guide surfaces 10 and 1
It is possible to eliminate play between 0' and the outer rings of both bearings can rotate smoothly, resulting in good operability.
なお、上記実施例では偏心リングを介在させて
軸受を偏心させるようにしているが、軸部材に一
体に偏心部を形成して偏心リングを無くすること
も可能である。その場合でも、軸部材11の角度
位置によつて偏心量を変化させ得る。 In the above embodiment, an eccentric ring is interposed to make the bearing eccentric, but it is also possible to eliminate the eccentric ring by forming an eccentric portion integrally with the shaft member. Even in that case, the amount of eccentricity can be changed depending on the angular position of the shaft member 11.
考案の効果
この考案は、一つの軸部材に軸受を2列に並設
し、両軸受の回転中心を偏位させることによつて
それぞれ別々の案内面に当接させたから、一個の
カムフオロアでもつて対向する案内面間でガタを
なくすることができ、しかも各軸受の転動は完全
に保証されるから良好な作動を得ることができ
る。また、偏心量を調整することによつて、軸受
とカム溝案内面とのスキマ(予圧量)調整ができ
る。さらに、カム溝には何ら手を加える必要がな
いので非常に経済的である。Effects of the invention In this invention, bearings are arranged in two rows on one shaft member, and the centers of rotation of both bearings are shifted so that they come into contact with separate guide surfaces. It is possible to eliminate play between the opposing guide surfaces, and since the rolling motion of each bearing is completely guaranteed, good operation can be achieved. Furthermore, by adjusting the amount of eccentricity, the gap (preload amount) between the bearing and the cam groove guide surface can be adjusted. Furthermore, the cam groove does not require any modification, so it is very economical.
なお、実施例のように偏心リングを介在させた
ときは、偏心リングの角度位置を変えることによ
つて2個の軸受の偏心量を変えることができるの
で、種々寸法のカム溝に対応できるほか、予圧調
整をいつそう容易におこなうことができるなどの
効果も得られる。 In addition, when an eccentric ring is interposed as in the embodiment, the amount of eccentricity of the two bearings can be changed by changing the angular position of the eccentric ring, so it is possible to accommodate cam grooves of various sizes. This also provides the advantage of being able to easily adjust the preload at any time.
第1図は従来のカムフオロアの断面図、第2図
はカム溝に押入した状態を示す図、第3図はこの
考案のカムフオロアの実施例を示す断面図であ
る。
9……カム溝、10,10′……案内面、11
……軸部材、12……第1の軸受、15……第2
の軸受、16……偏心リング。
FIG. 1 is a cross-sectional view of a conventional cam follower, FIG. 2 is a view showing the cam follower pushed into a cam groove, and FIG. 3 is a cross-sectional view showing an embodiment of the cam follower of this invention. 9...Cam groove, 10, 10'...Guide surface, 11
... Shaft member, 12 ... First bearing, 15 ... Second
bearing, 16... eccentric ring.
Claims (1)
挿入され、該案内面に沿つて転動するカムフオロ
アにおいて、一つの軸部材に、転動体を介して外
輪を回転自在に支承してなる軸受を2列に並設
し、該2つの軸受の回転中心を偏位させてそれぞ
れ別々の案内面に当接させたことを特徴とするカ
ムフオロア。 In a cam follower that is inserted into a cam groove having two guide surfaces parallel to each other and rolls along the guide surfaces, a bearing is provided in which an outer ring is rotatably supported on one shaft member via a rolling element. A cam follower characterized in that the two bearings are arranged in parallel in two rows, and the centers of rotation of the two bearings are offset so as to abut on separate guide surfaces.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6425583U JPS59169457U (en) | 1983-04-28 | 1983-04-28 | Come follower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6425583U JPS59169457U (en) | 1983-04-28 | 1983-04-28 | Come follower |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59169457U JPS59169457U (en) | 1984-11-13 |
JPH0121237Y2 true JPH0121237Y2 (en) | 1989-06-26 |
Family
ID=30194441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6425583U Granted JPS59169457U (en) | 1983-04-28 | 1983-04-28 | Come follower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59169457U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002130427A (en) * | 2000-10-27 | 2002-05-09 | Zuiko Corp | Cam device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345376B2 (en) * | 1975-02-17 | 1978-12-06 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345376U (en) * | 1976-09-20 | 1978-04-18 |
-
1983
- 1983-04-28 JP JP6425583U patent/JPS59169457U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345376B2 (en) * | 1975-02-17 | 1978-12-06 |
Also Published As
Publication number | Publication date |
---|---|
JPS59169457U (en) | 1984-11-13 |
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