JP3324791B2 - Motion conversion device - Google Patents
Motion conversion deviceInfo
- Publication number
- JP3324791B2 JP3324791B2 JP22666592A JP22666592A JP3324791B2 JP 3324791 B2 JP3324791 B2 JP 3324791B2 JP 22666592 A JP22666592 A JP 22666592A JP 22666592 A JP22666592 A JP 22666592A JP 3324791 B2 JP3324791 B2 JP 3324791B2
- Authority
- JP
- Japan
- Prior art keywords
- motion
- cam
- gear
- transmission mechanism
- operating shaft
- 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 - Fee Related
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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/16—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types with a driving or driven member which both rotates or oscillates on its axis and reciprocates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
- Transmission Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば電動歯ブラシの
ブラシを駆動するのに用いる運動変換装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motion conversion device used for driving a brush of an electric toothbrush, for example.
【０００２】[0002]
【従来の技術】電動歯ブラシとしては、ブラシを直線往
復運動させて歯を磨くようにしたものや、ブラシを軸回
りの揺動運動させて歯を磨くようにしたものや、ブラシ
を軸方向の往復運動及び軸回りの揺動運動させて歯を磨
くようにしたものが提供されている。ところが、１台の
電動歯ブラシで、ブラシを直線往復運動させるのと、ブ
ラシを８の字に軸方向の往復運動及び軸回りの揺動運動
をさせるのとを、切り換えて使用できるようにしたもの
は未だ提供されていない。2. Description of the Related Art As an electric toothbrush, a brush is used for brushing teeth by linearly reciprocating a brush, a brush is used for brushing teeth by swinging a brush around an axis, Reciprocating motion and swinging motion about an axis are provided for brushing teeth. However, one electric toothbrush can be used by switching between reciprocating the brush in a straight line and reciprocating the brush in an eight-shape in the axial direction and swinging around the axis. Has not been provided yet.
【０００３】[0003]
【発明が解決しようとする課題】ところが、近年顧客の
ニーズが高まり、ブラシを直線往復運動させて歯磨きす
るのと、ブラシを８の字に軸方向の往復運動及び軸回り
の揺動運動をさせて歯磨きするのとができるものが欲し
いという要求があり、このような運動をする運動変換装
置が望まれている。However, in recent years, the needs of customers have increased, and brushing is performed by linearly reciprocating the brush and brushing, and the brush is caused to reciprocate in the axial direction and swing around the axis in an eight-shape. There is a demand for something that can brush the teeth, and a motion conversion device that performs such a motion is desired.
【０００４】本発明は上記問題点に鑑みてなされたもの
であって、本発明の目的とするところは出力軸の回転方
向を変えることにより作動軸を直線往復運動させたり、
作動軸を８の字に軸方向の往復運動及び軸回りの揺動運
動をさせたりできる運動変換装置を提供するにある。The present invention has been made in view of the above problems, and an object of the present invention is to change the rotation direction of an output shaft so as to cause a linear reciprocating motion of an operating shaft.
It is an object of the present invention to provide a motion conversion device capable of causing an operating shaft to make a reciprocating motion in an axial direction and a swinging motion around an axis in a figure eight shape .
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
本発明運動変換装置Ａは、カムフォロアー１に作動軸２
を一体に設け、カムフォロアー１に偏芯にて作動軸２を
作動軸２の長手方向に往復運動させる直線往復運動用カ
ム３を係合させ、カムフォロアー１に偏芯にて作動軸２
を軸回りに揺動させる揺動運動用カム４を係合させ、駆
動源の出力軸５と上記直線往復運動用カム３とを直線運
動用歯車伝達機構Ｂで連動させると共に出力軸５と揺動
運動用カム４とを直線運動用歯車伝達機構Ｂとは別の揺
動運動用歯車伝達機構Ｃにて連動させ、直線運動用歯車
伝達機構Ｂの変速用の歯車比ｉ 1 と揺動運動用歯車伝達
機構Ｃの変速用の歯車比ｉ 2 を１：２に設定し、出力軸
５の一方向への正転のときは揺動運動用カム４が偏芯量
なしで回転し且つ出力軸５の他方向への逆転のときは揺
動運動用カム４が偏芯して回転するように揺動運動用カ
ム４を揺動運動用歯車伝達機構Ｃに取り付けて成ること
を特徴とする。In order to achieve the above object, a motion conversion device A according to the present invention comprises a cam follower 1 having an operating shaft 2 attached thereto.
The cam follower 1 is eccentrically engaged with a cam 3 for linear reciprocating motion which reciprocates the operating shaft 2 in the longitudinal direction of the operating shaft 2, and the operating shaft 2 is eccentrically mounted on the cam follower 1.
The output shaft 5 of the drive source and the cam 3 for linear reciprocating motion are interlocked by the gear transmission mechanism B for linear motion, and the output shaft 5 is oscillated with the output shaft 5. a dynamic motion cam 4 and the linear motion gear transmission mechanism B is interlocked with another oscillating motion gear transmission mechanism C, linear motion gear
Transmission gear ratio i 1 of transmission mechanism B and gear transmission for oscillating motion
The gear ratio i 2 of the gear change mechanism C 1: 2 is set to the output shaft 5 to the one-way forward rocking motion cam 4 when the rotate without eccentricity and the output shaft 5 characterized by comprising attached to the swinging motion gear transmission mechanism C rocking motion cam 4 as swing motion cam 4 rotates eccentrically when the reverse rotation in the other direction.
【０００６】また直線運動用歯車機構Ｂの減速にはフェ
イスギヤを、揺動運動用歯車伝達機構Ｃの減速には平歯
車を用いることを特徴とすることも好ましい。It is also preferable that a face gear is used to reduce the speed of the linear motion gear mechanism B and a spur gear is used to reduce the speed of the swing motion gear transmission mechanism C.
【０００７】[0007]
【作用】上記構成によれば、出力軸５を正転させれば、
直線往復運動用カム３の偏芯回転にてカムフォロアー１
を介して作動軸２が直線往復運動をするが、揺動運動用
カム４は偏芯量なして回転運動をし、カムフォロアー１
が揺動せず、作動軸２が揺動しない。これにより作動軸
２が直線往復運動だけをする。また出力軸５を逆転させ
れば、直線往復運動用カム３の偏芯回転にてカムフォロ
アー１を介して作動軸２が軸方向の往復運動をし、これ
と同時に揺動運動用カム４の偏芯にてカムフォロアー１
が揺動して作動軸２が軸回りの揺動運動をする。これに
より作動軸２が軸方向の往復運動及び軸回りの揺動運動
をする。作動軸２が軸方向の往復運動及び軸回りの揺動
運動をするとき、直線往復運動用カム３が１回転する間
に揺動運動用カムが２回転するものであって、作動軸２
が軸方向に１往復する間に２回揺動して８の字運動をす
る。 According to the above construction, if the output shaft 5 is rotated forward,
Cam follower 1 by eccentric rotation of cam 3 for linear reciprocating motion
The operating shaft 2 makes a linear reciprocating motion via the shaft, but the cam 4 for oscillating motion makes a rotary motion without any eccentricity, and the cam follower 1
Does not swing, and the operating shaft 2 does not swing. Thus, the operating shaft 2 performs only a linear reciprocating motion. When the output shaft 5 is reversed, the operating shaft 2 reciprocates in the axial direction via the cam follower 1 by the eccentric rotation of the linear reciprocating cam 3, and at the same time, the swinging cam 4 Eccentric cam follower 1
Swings, and the operating shaft 2 swings around the axis. Thereby, the operating shaft 2 makes a reciprocating motion in the axial direction and a swinging motion around the axis. The operating shaft 2 reciprocates in the axial direction and swings around the axis
During the motion, the cam 3 for linear reciprocating motion makes one rotation
The cam for oscillating motion makes two rotations.
Swings twice during one reciprocation in the axial direction to make a figure-eight movement
You.
【０００８】[0008]
【実施例】以下本発明の運動変換装置Ａを電動歯ブラシ
に用いた実施例により説明する。図１、図２に示すよう
にハウジング６内の下部には駆動源となるモータ７を内
装してあり、このモータ７の上方には本発明の運動変換
装置Ａを内装してあり、ハウジング６の上部にはブラシ
の駆動軸となる作動軸２を摺動自在に挿通してあり、作
動軸２の先端をハウジング６の上端から突出させてあ
る。作動軸２はハウジング６に対して摺動自在且つ回転
自在に挿通してあり、作動軸２はベアリング８にて支持
してある。この作動軸２の下端にはカムフォロアー１を
一体に設けてあり、このカムフォロアー１には図３に示
すように第１カム受部９と第２カム受部１０を設けてあ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the motion conversion apparatus A of the present invention is used for an electric toothbrush will be described below. As shown in FIGS. 1 and 2, a motor 7 serving as a driving source is provided in a lower portion of the housing 6, and a motion converter A of the present invention is provided above the motor 7. An operating shaft 2 serving as a driving shaft of the brush is slidably inserted through the upper portion of the housing 6, and the tip of the operating shaft 2 is projected from the upper end of the housing 6. The operating shaft 2 is slidably and rotatably inserted into the housing 6, and the operating shaft 2 is supported by bearings 8. A cam follower 1 is integrally provided at the lower end of the operating shaft 2, and the cam follower 1 is provided with a first cam receiving portion 9 and a second cam receiving portion 10 as shown in FIG.
【０００９】モータ７の出力軸５の上部には平歯車より
なるピニオン１１を装着してあり、水平な支持軸１２に
回転自在に支持したフェイスギヤ１３にピニオン１１を
歯合させてある。このピニオン１１とフェイスギヤ１３
にて直線運動用歯車伝達機構Ｂを構成してある。フェイ
スギヤ１３には図４に示すようにフェイスギヤ１３の回
転中心に対してｒ1 の偏芯量で偏芯した直線往復運動用
カム３を一体に装着してあり、直線往復運動用カム３を
カムフォロアー１に挿通して直線往復運動用カム３を第
１カム受部９に係合させてある。モータ７の出力軸５の
下部にはピニオン１４を装着してあり、垂直な支持軸１
５には回転自在に平歯車よりなるギヤ１６を回転自在に
装着してあり、ピニオン１４とギヤ１６を歯合させてあ
る。この支持軸１５の回りにはギヤ１６と一体の伝達筒
１７を回転自在に装着してある。このピニオン１４とギ
ヤ１６と伝達筒１７とで揺動運動用歯車伝達機構Ｃを構
成してある。A pinion 11 made of a spur gear is mounted on an upper part of the output shaft 5 of the motor 7, and the pinion 11 is meshed with a face gear 13 rotatably supported on a horizontal support shaft 12. This pinion 11 and face gear 13
Constitutes a gear transmission mechanism B for linear motion. As shown in FIG. 4, a cam 3 for linear reciprocating motion which is eccentric with respect to the center of rotation of the face gear 13 by an eccentric amount of r 1 is integrally mounted on the face gear 13. Is inserted into the cam follower 1 to engage the linear reciprocating cam 3 with the first cam receiving portion 9. A pinion 14 is attached to a lower portion of the output shaft 5 of the motor 7, and a vertical support shaft 1 is provided.
A gear 16 composed of a spur gear is rotatably mounted on the gear 5, and the pinion 14 and the gear 16 are meshed with each other. A transmission cylinder 17 integrated with a gear 16 is rotatably mounted around the support shaft 15. The pinion 14, the gear 16, and the transmission cylinder 17 constitute a gear transmission mechanism C for oscillating motion.
【００１０】伝達筒１７の上端には図５、図６に示すよ
うに伝達筒１７に対してｒ2 の偏芯量で偏芯した円盤状
の嵌合部１８を一体に設けてあり、嵌合部１８の上面に
は１８０゜の範囲に亙って切り欠いた凹部１９を設けて
あり、嵌合部１８の上面と凹部１９との間に係当部２０
を設けてある。揺動運動用カム４は円盤状に形成されて
おり、揺動運動用カム４には円形の嵌合孔２１を揺動運
動用カム４の中心に対してｒ2 の偏芯量で偏芯させて設
けてあり、嵌合孔２１の上部には内周に突出するように
係止部２２を突設してある。この揺動運動用カム４の嵌
合孔２１には伝達筒１７の上端の嵌合部１８を回転自在
に嵌合し、係止部２２を凹部１９に乗せてある。そして
伝達軸１７を回転したとき、回転方向により２つの係当
部２０のうち一方が係止部２２に係止して伝達筒１７と
揺動運動用カム４が一体に回転するようになっている。As shown in FIGS. 5 and 6, a disk-like fitting portion 18 eccentric with respect to the transmission cylinder 17 by an eccentric amount of r 2 is integrally provided at the upper end of the transmission cylinder 17. The upper surface of the mating portion 18 is provided with a concave portion 19 cut out over a range of 180 °, and an engaging portion 20 is provided between the upper surface of the fitting portion 18 and the concave portion 19.
Is provided. The rocking motion cam 4 is formed in a disk shape, and the rocking motion cam 4 has a circular fitting hole 21 eccentric with respect to the center of the rocking motion cam 4 by an eccentric amount of r 2. An engaging portion 22 is provided at an upper portion of the fitting hole 21 so as to protrude inward. The fitting portion 18 at the upper end of the transmission cylinder 17 is rotatably fitted into the fitting hole 21 of the swinging motion cam 4, and the locking portion 22 is placed on the concave portion 19. When the transmission shaft 17 is rotated, one of the two engaging portions 20 is locked by the locking portion 22 depending on the rotation direction, so that the transmission cylinder 17 and the swinging cam 4 rotate integrally. I have.
【００１１】次に上記のように構成せる電動歯ブラシの
動作を説明する。モータ７の出力軸５を一方向の正転方
向に駆動すると、直線運動用歯車伝達機構Ｂ側では出力
軸５の回転がピニオン１１、フェイスギヤ１３を介して
直線往復運動用カム３に伝達され、図８に示すようにカ
ムフォロアー１を介して作動軸２が直線往復運動をす
る。一方揺動運動用歯車伝達機構Ｃ側では出力軸５の回
転がピニオン１４、ギヤ１６を介して伝達筒１７に伝達
され、伝達筒１７から係当部２０、係止部２２を介して
揺動運動用カム４に伝達される。このとき一方の図７
（ａ）のように係当部２０が係止部２２に係止した状態
で揺動運動用カム４の外周は伝達筒１７の中心に対して
偏芯しない状態になる。つまり揺動運動用カム４の嵌合
孔２１の偏芯と嵌合部１８の偏芯が相殺され（ｒ2 −ｒ
2 ＝０）、図９（ａ）のように揺動運動用カム４の外周
は円運動するだけ状態となり、揺動運動用カム４が回転
してもカムフォロアー１が揺動せず、作動軸２が揺動し
ない。これにより、作動軸２が直線往復運動だけをして
ブラシが直線往復運動して歯磨きされる。またモータ７
の出力軸５を他方向の逆転方向に駆動すると、直線運動
用歯車伝達機構Ｂ側では出力軸５の回転がピニオン１
１、フェイスギヤ１３を介して直線往復運動用カム３に
伝達され、図８に示すようにカムフォロアー１を介して
作動軸２が直線往復運動をする。一方揺動運動用歯車伝
達機構Ｃ側では出力軸５の回転がピニオン１４、ギヤ１
６を介して伝達筒１７に伝達され、伝達筒１７から係当
部２０、係止部２２を介して揺動運動用カム４に伝達さ
れる。このとき他方の係当部２０が図７（ｂ）のように
係止部２２に係止した状態で揺動運動用カム４の外周は
伝達筒１７の中心に対して偏芯した状態になる。つまり
揺動運動用カム４の嵌合孔２１の偏芯と嵌合部１８の偏
芯が相乗され（ｒ2 ＋ｒ2 ＝２ｒ2 ）、揺動運動用カム
４の外周は偏芯運動する状態になり、揺動運動用カム４
で図９（ｂ）（ｃ）のようにカムフォロアー１が揺動
し、作動軸２が揺動する。これにより作動軸２が軸方向
の往復運動及び軸回りの揺動運動をし、ブラシが軸方向
の往復運動及び軸回りの揺動運動をして歯磨きされる。
このとき８の字運動をする。Next, the operation of the electric toothbrush configured as described above will be described. When the output shaft 5 of the motor 7 is driven in one forward rotation direction, the rotation of the output shaft 5 is transmitted to the linear reciprocating cam 3 via the pinion 11 and the face gear 13 on the linear motion gear transmission mechanism B side. As shown in FIG. 8, the operating shaft 2 reciprocates linearly via the cam follower 1. On the other hand, on the side of the swinging gear transmission mechanism C, the rotation of the output shaft 5 is transmitted to the transmission cylinder 17 via the pinion 14 and the gear 16, and oscillated from the transmission cylinder 17 via the engaging portion 20 and the locking portion 22. The power is transmitted to the exercise cam 4. At this time, one of FIG.
As shown in (a), the outer periphery of the swinging cam 4 is not eccentric with respect to the center of the transmission cylinder 17 in a state in which the engaging portion 20 is locked to the locking portion 22 as shown in FIG. That is, the eccentricity of the fitting hole 21 of the oscillating motion cam 4 and the eccentricity of the fitting portion 18 are offset (r 2 −r
2 = 0), as shown in FIG. 9 (a), the outer periphery of the oscillating motion cam 4 is only in a circular motion, and the cam follower 1 does not oscillate even if the oscillating motion cam 4 rotates. The shaft 2 does not swing. As a result, the operating shaft 2 performs only linear reciprocating motion, and the brush reciprocates linearly to brush the teeth. Motor 7
When the output shaft 5 is driven in the reverse direction of the other direction, the rotation of the output shaft 5 on the gear transmission mechanism B for linear motion is
1, transmitted to the linear reciprocating cam 3 via the face gear 13, and the operating shaft 2 reciprocates linearly via the cam follower 1 as shown in FIG. On the other hand, on the side of the gear transmission mechanism C for oscillating movement, the rotation of the output shaft 5 is controlled by the pinion 14 and the gear 1.
6, and is transmitted from the transmission cylinder 17 to the swing motion cam 4 via the engaging portion 20 and the locking portion 22. At this time, the outer periphery of the swinging motion cam 4 is eccentric with respect to the center of the transmission cylinder 17 in a state where the other engaging portion 20 is locked to the locking portion 22 as shown in FIG. . That is, the eccentricity of the fitting hole 21 of the rocking motion cam 4 and the eccentricity of the fitting portion 18 are synergistic (r 2 + r 2 = 2r 2 ), and the outer periphery of the rocking motion cam 4 is eccentric. , Swinging cam 4
9B and 9C, the cam follower 1 swings, and the operating shaft 2 swings. As a result, the operating shaft 2 reciprocates in the axial direction and swings around the axis, and the brush reciprocates in the axial direction and swings around the axis to brush the teeth.
At this time, the figure 8 is exercised .
【００１２】ブラシを８の字に軸方向の往復運動及び軸
回りの揺動運動をさせるには次のように設定してある。
歯数Ｚ1 のピニオン１１と歯数Ｚ2 のフェイスギヤ１３
の歯車比ｉ1 （ｉ1 ＝Ｚ1 ／Ｚ2 ）に対して、端数Ｚ3
のピニオン１４と端数Ｚ4 のギヤ１６の歯車比ｉ2 （ｉ
2 ＝Ｚ3 ／Ｚ4 ）が、ｉ1 ：ｉ2 ＝１：２になるように
設定し、軸方向の往復運動の下死点時に軸回りの揺動運
動が原点になるように、上記歯車のかみ合いを設定す
る。In order to make the brush perform a reciprocating motion in the axial direction and a swinging motion about the axis in the shape of a figure 8, the following settings are made.
Pinion 11 number of teeth Z 1 and the number of teeth Z 2 face gear 13
For the gear ratio i 1 (i 1 = Z 1 / Z 2 ), the fraction Z 3
Pinion 14 and the gear ratio of the gear 16 of the fractional Z 4 i 2 (i
2 = Z 3 / Z 4 ) is set so that i 1 : i 2 = 1: 2. Set the gear meshing.
【００１３】[0013]
【発明の効果】本発明は叙述のように構成されているの
で、出力軸を正転させれば、直線往復運動用カムの偏芯
回転にてカムフォロアーを介して作動軸が直線往復運動
をするが、揺動運動用カムは偏芯量なして回転運動を
し、カムフォロアーが揺動せず、作動軸が揺動しなく、
作動軸が直線往復運動だけをする状態となり、また出力
軸を逆転させれば、直線往復運動用カムの偏芯回転にて
カムフォロアーを介して作動軸が軸方向の往復運動を
し、これと同時に揺動運動用カムの偏芯にてカムフォロ
アーが揺動して作動軸が軸回りの揺動運動をし、作動軸
が軸方向の往復運動及び軸回りの揺動運動をする状態と
なるものであって、出力軸の回転方向を切り換えるだけ
で作動軸を軸方向の直線往復運動をさせたり、作動軸を
軸方向の往復運動及び揺動運動をさせたりできるもので
あり、さらに作動軸が軸方向の往復運動及び軸回りの揺
動運動をするとき、直線往復運動用カムが１回転する間
に揺動運動用カムが２回転するものであって、作動軸が
軸方向に１往復する間に２回揺動して８の字運動をする
ものである。Since the present invention is configured as described above, if the output shaft is rotated forward, the operating shaft performs linear reciprocating motion via the cam follower by the eccentric rotation of the linear reciprocating cam. However, the oscillating motion cam rotates with no eccentricity, the cam follower does not oscillate, the operating shaft does not oscillate,
If the operating shaft moves only in a linear reciprocating motion, and the output shaft is reversed, the eccentric rotation of the linear reciprocating cam causes the operating shaft to reciprocate in the axial direction via a cam follower. At the same time, the cam follower swings due to the eccentricity of the swinging cam, and the operating shaft makes a swinging motion around the axis, and the operating shaft makes a reciprocating motion in the axial direction and a swinging motion around the axis. The operating shaft can be caused to reciprocate linearly in the axial direction only by switching the rotation direction of the output shaft, or the reciprocating motion and the swinging motion of the operating shaft can be performed in the axial direction. br /> Ah is, further actuation shaft axial reciprocation and around the axis rocking
When the cam for linear reciprocating motion makes one rotation
The cam for oscillating motion rotates twice, and the operating shaft is
Swings twice while making one reciprocation in the axial direction to make a figure eight movement
Monodea Ru.
【図１】本発明の一実施例で出力軸を正転させるときの
状態の断面図である。FIG. 1 is a cross-sectional view illustrating a state where an output shaft is rotated forward in one embodiment of the present invention.
【図２】同上の出力軸を逆転させるときの状態の断面図
であるFIG. 2 is a sectional view of a state when the output shaft is reversed.
【図３】同上のカムフォロアーと作動軸を示し、（ａ）
（ｂ）は夫々異なる方向から見た斜視図である。FIG. 3 shows a cam follower and an operating shaft of the above, and (a)
(B) is a perspective view seen from each different direction.
【図４】同上のフェイスギヤと直線往復運動用カムの斜
視図である。FIG. 4 is a perspective view of the face gear and the cam for linear reciprocating motion according to the first embodiment.
【図５】同上のギヤと伝達筒と揺動運動用カムの分解斜
視図である。FIG. 5 is an exploded perspective view of the same gear, transmission cylinder, and cam for swinging motion.
【図６】図５の要部を拡大せる分解斜視図である。FIG. 6 is an exploded perspective view in which main parts of FIG. 5 are enlarged.
【図７】揺動運動用カムと嵌合部の関係を説明する平面
図であって、（ａ）は正転時、（ｂ）は逆転時を示す。FIGS. 7A and 7B are plan views illustrating the relationship between the rocking motion cam and the fitting portion, wherein FIG. 7A shows a forward rotation and FIG. 7B shows a reverse rotation.
【図８】（ａ）（ｂ）は図１や図２のＸ−Ｘ線で断面し
て動作を説明する断面図である。8 (a) and 8 (b) are cross-sectional views taken along the line XX in FIGS. 1 and 2 to explain the operation.
【図９】図１や図２のＹ−Ｙ線で断面して動作を説明す
る断面図であって、（ａ）は正転時の状態、（ｂ）
（ｃ）は逆転時の状態を示す。FIGS. 9A and 9B are cross-sectional views for explaining the operation taken along the line YY in FIGS. 1 and 2, wherein FIG.
(C) shows the state at the time of reverse rotation.
１ カムフォロアー ２ 作動軸 ３ 直線往復運動用カム ４ 揺動運動用カム ５ 出力軸 Ａ 運動変換装置 Ｂ 直線運動用歯車伝達機構 Ｃ 揺動運動用歯車伝達機構 REFERENCE SIGNS LIST 1 cam follower 2 operating shaft 3 cam for linear reciprocating motion 4 cam for oscillating motion 5 output shaft A motion conversion device B gear transmission mechanism for linear motion C gear transmission mechanism for oscillating motion
Claims (2)
カムフォロアーに偏芯にて作動軸を作動軸の長手方向に
往復運動させる直線往復運動用カムを係合させ、カムフ
ォロアーに偏芯にて作動軸を軸回りに揺動させる揺動運
動用カムを係合させ、駆動源の出力軸と上記直線往復運
動用カムとを直線運動用歯車伝達機構で連動させると共
に出力軸と揺動運動用カムとを直線運動用歯車伝達機構
とは別の揺動運動用歯車伝達機構にて連動させ、直線運
動用歯車伝達機構の変速用の歯車比と揺動運動用歯車伝
達機構の変速用の歯車比を１：２に設定し、出力軸の一
方向への正転のときは揺動運動用カムが偏芯量なしで回
転し且つ出力軸の他方向への逆転のときは揺動運動用カ
ムが偏芯して回転するように揺動運動用カムを揺動運動
用歯車伝達機構に取り付けて成ることを特徴とする運動
変換装置。An operating shaft is provided integrally with a cam follower,
An oscillating cam that engages a cam for linear reciprocating motion that reciprocates the operating shaft in the longitudinal direction of the operating shaft with eccentricity on the cam follower, and oscillates the operating shaft around the axis with eccentricity on the cam follower. And the output shaft of the drive source and the cam for linear reciprocating motion are linked by a gear transmission mechanism for linear motion, and the output shaft and the cam for rocking motion are transmitted to the gear transmission mechanism for linear motion.
In conjunction with another oscillating motion gear transmission mechanism and linearly luck
Gear ratio for gear shifting and gear transmission for oscillating motion of gear transmission mechanism
The gear ratio for the speed change mechanism is set to 1: 2, and when the output shaft rotates forward in one direction, the oscillating cam rotates without eccentricity and reverses in the other direction of the output shaft. motion conversion apparatus characterized by swing motion cam is formed by mounting the oscillating motion gear transmission mechanism the rocking movement cam to rotate eccentrically when the.
ギヤを、揺動運動用歯車伝達機構の減速には平歯車を用
いることを特徴とする請求項１記載の運動変換装置。2. The motion conversion device according to claim 1 , wherein a face gear is used to reduce the speed of the linear motion gear mechanism, and a spur gear is used to reduce the swing motion gear transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22666592A JP3324791B2 (en) | 1992-08-26 | 1992-08-26 | Motion conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22666592A JP3324791B2 (en) | 1992-08-26 | 1992-08-26 | Motion conversion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0670811A JPH0670811A (en) | 1994-03-15 |
| JP3324791B2 true JP3324791B2 (en) | 2002-09-17 |
Family
ID=16848743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22666592A Expired - Fee Related JP3324791B2 (en) | 1992-08-26 | 1992-08-26 | Motion conversion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3324791B2 (en) |
-
1992
- 1992-08-26 JP JP22666592A patent/JP3324791B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0670811A (en) | 1994-03-15 |
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