JP2931343B2 - Motor shaft bearing device for massage machine - Google Patents

Motor shaft bearing device for massage machine

Info

Publication number
JP2931343B2
JP2931343B2 JP1321224A JP32122489A JP2931343B2 JP 2931343 B2 JP2931343 B2 JP 2931343B2 JP 1321224 A JP1321224 A JP 1321224A JP 32122489 A JP32122489 A JP 32122489A JP 2931343 B2 JP2931343 B2 JP 2931343B2
Authority
JP
Japan
Prior art keywords
motor shaft
inner ring
ring
bearing
massage machine
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
Application number
JP1321224A
Other languages
Japanese (ja)
Other versions
JPH03182253A (en
Inventor
明彦 寺西
勝美 早川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teranishi Electric Works Ltd
Original Assignee
Teranishi Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teranishi Electric Works Ltd filed Critical Teranishi Electric Works Ltd
Priority to JP1321224A priority Critical patent/JP2931343B2/en
Publication of JPH03182253A publication Critical patent/JPH03182253A/en
Application granted granted Critical
Publication of JP2931343B2 publication Critical patent/JP2931343B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/066—Ball or roller bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Massaging Devices (AREA)
  • Support Of The Bearing (AREA)

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明はマッサージ機におけるモータ軸の支承装置に
関するものである。Description: FIELD OF THE INVENTION The present invention relates to a bearing device for a motor shaft in a massage machine.

「従来技術」 従来より、モータの回転子に貫着したモータ軸にクラ
ンク軸を取り付けて回転させ、クランク軸に連結する振
動板等のマッサージ部材を揺動させるマッサージ機のモ
ータ軸を、回転子の両側において、これがり軸受けで回
動自在に支承するマッサージ機のモータ軸支承装置が知
られている。そして、この場合、モータ軸ところがり軸
受けの内輪とはすきまばめで組み付けられている。2. Description of the Related Art Conventionally, a motor shaft of a massage machine, in which a crankshaft is attached to a motor shaft penetrating a rotor of a motor and rotated, and a massage member such as a diaphragm connected to the crankshaft is swung, is used as a rotor. There is known a motor shaft bearing device of a massage machine which is rotatably supported by a bearing on both sides. In this case, the inner ring of the motor shaft counter bearing is assembled with a clearance fit.

「発明が解決しようとする課題」 しかしながら、従来の支承装置においては、すきまば
めとしたモータ軸と内輪との微小隙間の存在により、マ
ッサージ部材からクランク軸を介してモータ軸に偏荷重
が加わったり、モータ軸の回転数が変化したりすると、
ころがり軸受けの内輪とモータ軸とのあいだにスリップ
が発生して、モータ軸あるいは内輪が摩耗したり、特に
高速回転域においては、モータ軸が内輪とぶつかって衝
撃音が発生するなどの問題があった。そして、これらを
防止するために、モータ軸ところがり軸受けとをしまり
ばめで組み付けたり、接着剤で固着させたりすると、こ
ろがり軸受けをモータ軸から取り外すことが困難とな
り、モータ構成部品の修理・交換等の作業性が悪化する
という問題が生じた。[Problems to be Solved by the Invention] However, in the conventional bearing device, an uneven load is applied to the motor shaft from the massage member via the crankshaft due to the existence of the clearance between the motor shaft and the inner ring which is loosely fitted. Or the rotation speed of the motor shaft changes,
Slip occurs between the inner ring of the rolling bearing and the motor shaft, and the motor shaft or the inner ring is worn out.In particular, in a high-speed rotation region, there are problems such as the motor shaft colliding with the inner ring and generating an impact sound. Was. In order to prevent this, if the motor shaft and the counter bearing are assembled with an interference fit or fixed with an adhesive, it becomes difficult to remove the rolling bearing from the motor shaft, and it is necessary to repair or replace motor components. However, there is a problem that the workability is deteriorated.

そこで本発明は上記の２つの問題を両立して解決する
ことを目的とし、モータ軸ところがり軸受けとの間での
スリップや衝撃音の発生をおさえるとともに、ころがり
軸受けをモータ軸から容易に取り外して、ころがり軸受
け自身、あるいは回転子等のモータ構成部品の修理・交
換等を容易に行うことのできる作業性のよいマッサージ
機のモータ軸支承装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above two problems at the same time. The purpose of the present invention is to suppress the occurrence of slip and impact noise between the motor shaft and the rolling bearing, and to easily remove the rolling bearing from the motor shaft. Another object of the present invention is to provide a motor shaft bearing device of a massage machine with good workability, which can easily perform repair / replacement of a motor component such as a rolling bearing itself or a rotor.

「課題を解決するための手段」 かかる目的を達成すべく、本発明は課題を解決するた
めの手段として次の構成をとった。即ち、 モータの回転子に貫着したモータ軸に取り付けられた
クランク軸の回転運動により、マッサージ部材を揺動さ
せるマッサージ機の前記モータ軸を、前記回転子の両側
でころがり軸受けにより回転自在に支承するマッサージ
機のモータ軸支承装置において、 前記クランク軸と反対側の前記ころがり軸受けと前記
モータ軸とをすきまばめとすると共に、該すきまばめと
した前記ころがり軸受けの内輪と前記モータ軸との間
に、弾性リングを前記モータ軸の径方向に弾性変形させ
て介装したことを特徴とするマッサージ機のモータ軸支
承装置の構成がそれである。"Means for Solving the Problems" In order to achieve the object, the present invention has the following configuration as means for solving the problems. That is, the motor shaft of the massage machine that swings the massage member by the rotational motion of the crank shaft attached to the motor shaft penetrating the rotor of the motor is rotatably supported by rolling bearings on both sides of the rotor. In the motor shaft bearing device of the massage machine, the rolling bearing and the motor shaft on the opposite side to the crankshaft have a clearance fit, and the inner race of the rolling bearing and the motor shaft having the clearance fit are formed between the rolling bearing and the motor shaft. The structure of a motor shaft bearing device of a massage machine, wherein an elastic ring is elastically deformed in the radial direction of the motor shaft and interposed therebetween.

「作用」 前記構成を有する本発明のマッサージ機のモータ軸支
承装置は、ころがり軸受けが回転子の両側でモータ軸を
回動自在に支承すると共に、すきまばめとしたモータ軸
と内輪との間に介装された弾性リングがモータ軸と内輪
とに圧接し、摩擦抵抗を生じさせてモータ軸と内輪との
スリップを防ぎ、また、モータ軸と内輪との衝撃音の発
生を押さえる。[Operation] The motor shaft bearing device of the massage machine of the present invention having the above-described configuration is characterized in that the rolling bearing rotatably supports the motor shaft on both sides of the rotor, and between the loosely fitted motor shaft and the inner ring. The elastic ring interposed between the motor shaft and the inner ring presses against the motor shaft and the inner ring to generate frictional resistance to prevent slippage between the motor shaft and the inner ring, and to suppress the generation of impact noise between the motor shaft and the inner ring.

「実施例」 以下、本発明の実施例を図面に基づいて詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

第１図は本発明のモータ軸支承装置を備えた一実施例
としてのマッサージ機の要部断面図である。ケース１の
中央部にはモータ２が配置されており、そのモータハウ
ジング部４の内部には回転子６、界磁マグネット８、整
流子10、ブラシ12、ブラシバネ13、ブラシホルダ14等、
公知の構成部品が収納されている。そして回転子６及び
整流子10を貫通して固着させたモータ軸16は、両端付近
を、後述するころがり軸受けで回動自在に支承されてい
る。また、モータ軸16の一端に一体形成した雄ねじ18に
は、クランク軸20が螺合して取り付けられている。FIG. 1 is a sectional view of a main part of a massage machine as an embodiment provided with a motor shaft bearing device of the present invention. A motor 2 is disposed at the center of the case 1, and a rotor 6, a field magnet 8, a commutator 10, a brush 12, a brush spring 13, a brush holder 14, etc.
Known components are housed. The motor shaft 16 fixedly penetrating through the rotor 6 and the commutator 10 is rotatably supported by rolling bearings in the vicinity of both ends. Further, a crankshaft 20 is screwed and attached to a male screw 18 integrally formed at one end of the motor shaft 16.

モータ軸16を回転子６に対してクランク軸20側におい
て支承する上部ころがり軸受け（以下、上部軸受けとい
う）22が、整流子10とクランク軸20との間に配置されて
いる。この上部軸受け22とモータ軸16との嵌め合いは本
実施例ではすきまばめとされているが、しまりばめでも
よい。そして、上部軸受け22とクランク軸20との間に
は、スリーブ24がモータ軸16に嵌装された状態で配置さ
れている。また、クランク軸20に固定されたモータ冷却
用のファン26が、スリーブ24とクランク軸20との間に配
置されている。ファン26には、後述するマッサージ部材
の揺動の反動を打ち消すような重量に調整されたカウン
タウエイト28が取り付けられている。An upper rolling bearing (hereinafter, referred to as an upper bearing) 22 that supports the motor shaft 16 on the crankshaft 20 side with respect to the rotor 6 is disposed between the commutator 10 and the crankshaft 20. In this embodiment, the fit between the upper bearing 22 and the motor shaft 16 is a loose fit, but may be a tight fit. A sleeve 24 is arranged between the upper bearing 22 and the crankshaft 20 in a state where the sleeve 24 is fitted on the motor shaft 16. Further, a motor cooling fan 26 fixed to the crankshaft 20 is disposed between the sleeve 24 and the crankshaft 20. The fan 26 is provided with a counterweight 28 adjusted to a weight that cancels the recoil of the swing of the massage member described later.

一端が雄ねじ18と螺合してモータ軸16に固着されてい
るクランク軸20の他端には、マッサージ部材32が、その
中央付近に設けられた取付部材34とクランク軸軸受け36
を介して回動自在に係合されている。そしてモータ軸16
が回転することにより、モータ軸16の軸中心と所定量偏
芯したクランク軸軸受け36を介し、マッサージ部材32が
揺動運動するように構成されている。At the other end of the crankshaft 20, one end of which is screwed to the male screw 18 and fixed to the motor shaft 16, a massage member 32 is provided with a mounting member 34 provided near the center thereof and a crankshaft bearing 36.
And is rotatably engaged via the. And motor shaft 16
Is rotated so that the massage member 32 swings via a crankshaft bearing 36 which is eccentric with respect to the axis center of the motor shaft 16 by a predetermined amount.

マッサージ部材32は合成樹脂等を素材に用いており、
クランク軸軸受け36を設けた反対側には、略半球上の突
起38が一面に設けられた当り面40が形成されている。こ
の当り面40は使用者の足、腰等が当てられるもので、例
えば、足の裏の土踏まずの部分等に好適に作用するよう
に、当り面40の一部分が傾斜すると共に、突起38に対し
て比較的大きな隆起42が形成されている。The massaging member 32 is made of synthetic resin or the like,
On the opposite side where the crankshaft bearing 36 is provided, there is formed a contact surface 40 having a substantially hemispherical projection 38 provided on one surface. The contact surface 40 is to which the user's feet, waist, etc. are applied, and, for example, a part of the contact surface 40 is inclined so as to suitably act on the arch of the sole of the foot, etc. A relatively large ridge 42 is formed.

回転子６に対してクランク軸20と反対側においてモー
タ軸16を支承する、下部ころがり軸受け（以下、下部軸
受けという）44の内輪46は、モータ軸16とすきまばめと
されている。本実施例ではモータ軸16の径が10mm、寸法
許容差が０〜−８μｍ、内輪46の寸法許容差が９〜12μ
ｍとされており、最大すきまが20μｍ、最小すきまが９
μｍのすきまばめである。An inner ring 46 of a lower rolling bearing (hereinafter, referred to as a lower bearing) 44 that supports the motor shaft 16 on a side opposite to the crankshaft 20 with respect to the rotor 6 has a clearance fit with the motor shaft 16. In this embodiment, the diameter of the motor shaft 16 is 10 mm, the dimensional tolerance is 0 to -8 μm, and the dimensional tolerance of the inner ring 46 is 9 to 12 μm.
m, the maximum clearance is 20 μm, and the minimum clearance is 9
A μm clearance fit.

また、すきまばめとした部分のモータ軸16の外周に
は、後述する弾性リングの大きさに適合する所定の寸法
関係を満たした断面略矩形の溝48が、一周にわたり形成
されている。そして、この溝48には弾性リングとしての
Ｏリング50が装着されている。Further, a groove 48 having a substantially rectangular cross section which satisfies a predetermined dimensional relationship matching the size of an elastic ring described later is formed on the outer periphery of the motor shaft 16 at the clearance fit portion. The groove 48 is provided with an O-ring 50 as an elastic ring.

このＯリング50は、断面が円状のリングで、ゴム等の
弾性を有する材質で成形されている。尚、本実施例では
弾性リングとして上記のＯリング50を用いているが、断
面矩形状等の弾性リングを用いてもよい。又、弾性を有
するゴム等の紐を、モータ軸16に巻き付けるように溝48
に環状に装着して、弾性リングとしても同様に実施可能
である。The O-ring 50 is a ring having a circular cross section, and is formed of an elastic material such as rubber. In this embodiment, the O-ring 50 is used as the elastic ring, but an elastic ring having a rectangular cross section may be used. Also, a groove such that an elastic cord such as rubber is wound around the motor shaft 16.
The present invention can be similarly implemented by being mounted in an annular shape as an elastic ring.

そして、このＯリング50を装着したモータ軸16に下部
軸受け44を嵌めることにより、Ｏリング50は、内輪46と
溝48とによって弾性変形させられて、モータ軸16と内輪
46との間に介装させられている。この時Ｏリングは、溝
48との所定の寸法関係により、モータ軸16の径方向に15
％〜25％程度のつぶししろで弾性変形させられて、断面
がだ円状になるように潰された状態とされている。本実
施例ではモータ軸16に溝48を形成してあるが、内輪46側
に溝48を形成してＯリング50を装着しても同様の作用が
得られる。Then, by fitting the lower bearing 44 to the motor shaft 16 to which the O-ring 50 is mounted, the O-ring 50 is elastically deformed by the inner ring 46 and the groove 48, and the motor shaft 16 and the inner ring
It is interposed between 46 and. At this time, the O-ring
Due to the predetermined dimensional relationship with 48, 15 mm in the radial direction of the motor shaft 16
It is elastically deformed with a squeeze margin of about 25% and is crushed to have an elliptical cross section. In this embodiment, the groove 48 is formed in the motor shaft 16. However, the same operation can be obtained by forming the groove 48 on the inner ring 46 side and mounting the O-ring 50.

次に本実施例のマッサージ機のモータ軸支承装置の作
動について説明する。Next, the operation of the motor shaft bearing device of the massage machine according to the present embodiment will be described.

ブラシ12、整流子10を介して回転子６に電流を供給す
ると、回転子６と共に、モータ軸16が回転する。この
時、上部軸受け22と下部軸受け44とがモータ軸16を回動
自在に支承する。更に、弾性変形させられたＯリング50
がそのだ円状の断面を円状に復元させようとする弾性力
によってモータ軸16と内輪46とに常に圧接し、摩擦抵抗
を生じさせる。このため、モータ軸16の回転速度が加
速、あるいは減速状態であってもモータ軸16と内輪46と
のスリップを防ぐ。When a current is supplied to the rotor 6 via the brush 12 and the commutator 10, the motor shaft 16 rotates together with the rotor 6. At this time, the upper bearing 22 and the lower bearing 44 rotatably support the motor shaft 16. Further, the elastically deformed O-ring 50
However, due to the elastic force for restoring the elliptical cross section to a circular shape, the motor shaft 16 and the inner ring 46 are constantly pressed against each other, and frictional resistance is generated. Therefore, even if the rotation speed of the motor shaft 16 is accelerated or decelerated, the slip between the motor shaft 16 and the inner ring 46 is prevented.

また、振動中のマッサージ部材32に足等をのせて偏荷
重が加わった場合、モータ軸16の雄ねじ18にはクランク
軸20を介して径方向の力が作用して、モータ軸16を斜め
に傾けようとするモーメントが働く。すると上部軸受け
22が支点となり、モータ軸16の下部軸受け44と嵌め合わ
されている部分では、モータ軸16を内輪46にぶつけよう
とするが、Ｏリング50が弾性変形することにより衝撃を
和らげ、モータ軸16が内輪46とぶつかるのを防いだり、
たとえぶつかるばあいでも、ぶつかる速度を減じている
ので、モータ軸16と内輪46とによる衝撃音の発生を押さ
える。尚、偏荷重が加わった場合に、主に、上部軸受け
22が支点となり、下部軸受け44側でスリップや衝撃音が
発生するので、Ｏリング50は、モータ軸16と下部軸受け
44との間に介装すれば、十分である。Further, when an eccentric load is applied by placing a foot or the like on the vibrating massage member 32, a radial force acts on the male screw 18 of the motor shaft 16 via the crankshaft 20, and the motor shaft 16 is tilted obliquely. A moment to tilt works. Then the upper bearing
At the portion where the 22 is a fulcrum and the lower shaft bearing 44 of the motor shaft 16 is fitted, the motor shaft 16 tries to hit the inner ring 46, but the O-ring 50 is elastically deformed to reduce the impact, and the motor shaft 16 Preventing it from hitting the inner ring 46,
Even if the vehicle hits, the speed of the collision is reduced, so that the generation of the impact noise by the motor shaft 16 and the inner ring 46 is suppressed. When an eccentric load is applied, mainly the upper bearing
The O-ring 50 is connected to the motor shaft 16 and the lower bearing,
Intermediate with 44 is enough.

一方、モータ軸16と下部軸受け44との組み付け・取り
外しについて詳説すると、モータ軸16と内輪46とはすき
まばめであるので、Ｏリング50を弾性変形させながら、
モータ軸16に内輪46をはめれば、容易に下部軸受け44を
モータ軸16に組み付けることができる。又、逆に、取り
外す場合も、Ｏリング16と内輪46とがすきまばめであ
り、Ｏリング50と内輪46との摩擦に抗して取り外すだけ
なので、容易に行える。そのため、例えば本実施例にお
いて、モータハウジング４ごと下部軸受け44をモータ軸
16から取り外してしまえば、モータハウジング４内の消
耗品であるブラシ12等、各部品の交換・修理等を容易に
行うことができる。そして、部品の交換・修理後、下部
軸受け44をモータ軸16に組み付けるのも又容易である。On the other hand, the attachment and detachment of the motor shaft 16 and the lower bearing 44 will be described in detail.Since the motor shaft 16 and the inner ring 46 are loose fits, while the O-ring 50 is elastically deformed,
If the inner race 46 is fitted to the motor shaft 16, the lower bearing 44 can be easily assembled to the motor shaft 16. Conversely, when the O-ring 16 and the inner ring 46 are removed, the O-ring 16 and the inner ring 46 are loosely fitted, and the O-ring 50 and the inner ring 46 are simply removed against friction between the O-ring 50 and the inner ring 46. Therefore, for example, in the present embodiment, the lower bearing 44 is
Once removed from the housing 16, replacement and repair of each part such as the brush 12 which is a consumable in the motor housing 4 can be easily performed. Then, it is also easy to assemble the lower bearing 44 to the motor shaft 16 after the replacement and repair of the parts.

尚、Ｏリング50は１個だけでなく複数用いてもよい。
例え、第３図に示す別実施例のように、モータ軸16と内
輪46とがすきまばめとなっている部分の両端付近におい
て、それぞれＯリング50を溝48に１個ずつ介装し、２箇
所でその作用を生じさせてもよい。この場合、マッサー
ジ部材32に偏荷重が加わってモータ軸16を斜めに傾かせ
ようとしても、２個のＯリング50が弾性変形してモータ
軸16が直接内輪46にぶつかるのを防ぎ、衝撃音の発生を
押さえる。Incidentally, the number of O-rings 50 may be plural instead of one.
For example, as in another embodiment shown in FIG. 3, O-rings 50 are interposed one by one in grooves 48 near both ends of a portion where the motor shaft 16 and the inner ring 46 are loosely fitted. The effect may be generated at two places. In this case, even if an unbalanced load is applied to the massage member 32 and the motor shaft 16 is inclined obliquely, the two O-rings 50 are elastically deformed to prevent the motor shaft 16 from directly hitting the inner ring 46, and the impact noise is reduced. To suppress the occurrence of

以上本発明はこのような実施例になんら限定されるこ
となく、本発明の要旨を逸脱しない範囲において種々な
る態様で実施し得る。As described above, the present invention is not limited to such embodiments at all, and can be implemented in various modes without departing from the gist of the present invention.

「発明の効果」 以上詳述したように本発明のマッサージ機のモータ軸
支承装置は、ころがり軸受けが回転子の両側でモータ軸
を回動自在に支承すると共に、すきまばめとしたモータ
軸と内輪との間に介装された弾性リングがモータ軸と内
輪とに圧接して摩擦抵抗を生じさせるので、モータ軸の
回転数を変化させた場合でも、モータ軸と内輪とのスリ
ップを防止することができる。そして特に高速回転域に
おいて、マッサージ部材に偏荷重が加わってモータ軸を
内輪にぶつけようとしても、弾性リングがモータ軸と内
輪との衝撃を和らげるので、衝撃音の発生を押さえるこ
とができる。更に、モータ軸と内輪とはすきまばめであ
り、弾性リングを弾性変形させながらころがり軸受けを
モータ軸にはめれば、容易に組み付けることができ、又
逆に、取り外すことも容易である。その為、ころがり軸
受けをモータ軸から取り外して、こらがり軸受け自身、
あるいは回転子等のモータ構成部品の修理・交換等を行
うことが容易となり、作業性を高めることができるとい
う効果を、上記効果と両立して得ることができる。[Effects of the Invention] As described in detail above, the motor shaft bearing device of the massage machine of the present invention has a rolling bearing rotatably supporting the motor shaft on both sides of the rotor, and a loose fit motor shaft. The elastic ring interposed between the inner ring and the inner ring presses against the motor shaft and the inner ring to generate frictional resistance. Therefore, even when the rotation speed of the motor shaft is changed, slippage between the motor shaft and the inner ring is prevented. be able to. In particular, even in the high-speed rotation range, even if an unbalanced load is applied to the massage member to hit the motor shaft against the inner ring, the elastic ring reduces the impact between the motor shaft and the inner ring, so that it is possible to suppress the generation of impact noise. Furthermore, the motor shaft and the inner ring are clearance fit, and if the rolling bearing is fitted to the motor shaft while elastically deforming the elastic ring, it can be easily assembled and, conversely, can be easily removed. Therefore, remove the rolling bearing from the motor shaft,
Alternatively, it is easy to perform repair / replacement of a motor component such as a rotor, and the effect that workability can be improved can be obtained while being compatible with the above effects.

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明のモータ軸支承装置を備えた一実施例と
してのマッサージ機の要部断面図、第２図は本実施例の
モータ軸支承装置の部分拡大断面図、第３図は別実施例
のモータ軸支承装置の部分拡大断面図である。 ２……モータ ６……回転子 16……モータ軸 20……クランク軸 22……上部ころがり軸受け 32……マッサージ部材 44……下部ころがり軸受け 46……内輪 50……Ｏリング（＝弾性リング）FIG. 1 is a sectional view of a main part of a massage machine as an embodiment having a motor shaft bearing device of the present invention, FIG. 2 is a partially enlarged sectional view of the motor shaft bearing device of this embodiment, and FIG. It is a partial expanded sectional view of the motor shaft bearing device of an example. 2 ... Motor 6 ... Rotator 16 ... Motor shaft 20 ... Crank shaft 22 ... Upper rolling bearing 32 ... Massage member 44 ... Lower rolling bearing 46 ... Inner ring 50 ... O ring (= elastic ring)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】モータの回転子に貫着したモータ軸に取り
付けられたクランク軸の回転運動により、マッサージ部
材を揺動させるマッサージ機の前記モータ軸を、前記回
転子の両側でころがり軸受けにより回動自在に支承する
マッサージ機のモータ軸支承装置において、 前記クランク軸と反対側の前記ころがり軸受けと前記モ
ータ軸とをすきまばめとすると共に、該すきまばめとし
た前記ころがり軸受けの内輪と前記モータ軸との間に、
弾性リングを前記モータ軸の径方向に弾性変形させて介
装したことを特徴とするマッサージ機のモータ軸支承装
置。1. The motor shaft of a massage machine, which swings a massage member, is rotated by rolling bearings on both sides of the rotor by rotating motion of a crankshaft attached to a motor shaft penetrating a rotor of the motor. In the motor shaft bearing device of the massage machine movably supported, the rolling bearing and the motor shaft on the opposite side to the crankshaft have a clearance fit, and the inner ring of the rolling bearing having the clearance fit and Between the motor shaft,
A motor shaft bearing device for a massage machine, wherein an elastic ring is elastically deformed and interposed in the radial direction of the motor shaft.
JP1321224A 1989-12-11 1989-12-11 Motor shaft bearing device for massage machine Expired - Fee Related JP2931343B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1321224A JP2931343B2 (en) 1989-12-11 1989-12-11 Motor shaft bearing device for massage machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1321224A JP2931343B2 (en) 1989-12-11 1989-12-11 Motor shaft bearing device for massage machine

Publications (2)

Publication Number Publication Date
JPH03182253A JPH03182253A (en) 1991-08-08
JP2931343B2 true JP2931343B2 (en) 1999-08-09

Family

ID=18130194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1321224A Expired - Fee Related JP2931343B2 (en) 1989-12-11 1989-12-11 Motor shaft bearing device for massage machine

Country Status (1)

Country Link
JP (1) JP2931343B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5827057B2 (en) * 2011-07-26 2015-12-02 光洋サーモシステム株式会社 Transport device

Also Published As

Publication number Publication date
JPH03182253A (en) 1991-08-08

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