JP2018105336A - Speed reducer, and sheet adjuster and reclining device having speed reducer - Google Patents

Speed reducer, and sheet adjuster and reclining device having speed reducer Download PDF

Info

Publication number
JP2018105336A
JP2018105336A JP2016249526A JP2016249526A JP2018105336A JP 2018105336 A JP2018105336 A JP 2018105336A JP 2016249526 A JP2016249526 A JP 2016249526A JP 2016249526 A JP2016249526 A JP 2016249526A JP 2018105336 A JP2018105336 A JP 2018105336A
Authority
JP
Japan
Prior art keywords
gear
planetary gear
internal gear
internal
teeth
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.)
Granted
Application number
JP2016249526A
Other languages
Japanese (ja)
Other versions
JP6910140B2 (en
Inventor
中村 隆
Takashi Nakamura
隆 中村
武彦 清原
Takehiko Kiyohara
武彦 清原
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.)
Imasen Electric Industrial Co Ltd
Original Assignee
Imasen Electric Industrial Co 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 Imasen Electric Industrial Co Ltd filed Critical Imasen Electric Industrial Co Ltd
Priority to JP2016249526A priority Critical patent/JP6910140B2/en
Publication of JP2018105336A publication Critical patent/JP2018105336A/en
Application granted granted Critical
Publication of JP6910140B2 publication Critical patent/JP6910140B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Retarders (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a speed reducer capable of securing a high speed reduction ratio, and establishing prevention of reverse rotation with efficiency, and a sheet adjuster and reclining device having the speed reducer.SOLUTION: A speed reducer includes: a first internal gear 10; a second internal gear 20 whose tooth number is more than that of the first internal gear 10; and at least two planetary gears 40 where a first-step planetary gear arranged in the first internal gear 10, and a second-step planetary gear arranged in the second internal gear are connected on a rotational shaft 81; and a rotation force transmission member 30 configured to move a shaft of the planetary gear with input rotation force.SELECTED DRAWING: Figure 2

Description

本発明は、減速機、この減速機を有するシートアジャスタ及びリクライニング装置に関する。   The present invention relates to a speed reducer, a seat adjuster having the speed reducer, and a reclining device.

例えば、車両用シートに使用されるパワーシートアジャスタをはじめとする製品は、モータ等の動力源の回転力を、減速機を介して所望のトルク又は回転力に調整して動作させる。モータの回転数は、一般的に数千rpm以上であるため、適切な作動速度を実現するために、減速比の大きい減速機が特に有用となる。また、これらの製品は、モータの回転力によって動作すると同時に、シート等に負荷がかかった場合(例えば、人が座ったり、又は急ブレーキ等による意図しない力が加わったりした場合等)であっても、回転することのない逆転止め機構も重要である。   For example, products such as a power seat adjuster used for a vehicle seat operate by adjusting the rotational force of a power source such as a motor to a desired torque or rotational force via a reduction gear. Since the rotational speed of the motor is generally several thousand rpm or more, a reduction gear with a large reduction ratio is particularly useful in order to achieve an appropriate operating speed. In addition, these products are operated by the rotational force of the motor, and at the same time a load is applied to the seat or the like (for example, when a person sits down or an unintended force such as sudden braking is applied). However, an anti-reverse mechanism that does not rotate is also important.

一般的に逆転止めを成立させるためには、摩擦係数によって算出される摩擦角を超えない歯車の進み角を設定する必要がある。しかし、これが減速機構の理論効率を低くする要因となる。例えば、ウォームギアとウォームホイールを用いた減速機は、逆転止めを成立させると一般に効率は50%以下になる。   In general, in order to establish reverse rotation prevention, it is necessary to set a gear advance angle that does not exceed the friction angle calculated by the friction coefficient. However, this is a factor that lowers the theoretical efficiency of the speed reduction mechanism. For example, a reduction gear using a worm gear and a worm wheel generally has an efficiency of 50% or less when reverse rotation prevention is established.

また、高減速比と逆転止めの機能を付与するものとして、タウメル機構がある。しかしタウメル機構は一方の歯車が偏心しながら動力を伝えるものであることから、揺動による作動音や作動力の周期変動が発生するという課題がある(例えば、特許文献1)。   Further, there is a Taumel mechanism that provides a high reduction ratio and a function of preventing reverse rotation. However, since the Taumel mechanism transmits power while one of the gears is decentered, there is a problem in that operating noise due to swinging and periodic fluctuations in the operating force occur (for example, Patent Document 1).

また、同様に高減速比と逆転止めの機能を付与する機構として、不思議遊星歯車機構がある。これは共通の遊星歯車に対し、歯車の異なる2つの内歯車(一方は、転位により噛み合わせてある内歯歯車)を噛み合わせ、一方の内歯車を減速させるものである。しかしながらこの不思議遊星歯車機構は、歯当たりが均一でなく、バックラッシュが大きいという課題がある。   Similarly, there is a mysterious planetary gear mechanism as a mechanism for imparting a high reduction ratio and a function of preventing reverse rotation. In this method, two internal gears with different gears (one is an internal gear meshed by shifting) are meshed with a common planetary gear, and one internal gear is decelerated. However, this mysterious planetary gear mechanism has a problem that the tooth contact is not uniform and the backlash is large.

特開2004−218656号公報JP 2004-218656 A

本発明は、かかる課題を解決するためになされたものであり、高減速比を確保し、かつ逆転止めを成立させつつ効率のよい減速機、該減速機を有するシートアジャスタ及びリクライニング装置を提供することを目的とする。   The present invention has been made to solve such a problem, and provides an efficient reduction gear, a seat adjuster having the reduction gear, and a reclining device that secures a high reduction ratio and achieves reverse rotation prevention. For the purpose.

本発明は、上述の目的を達成するために、以下の手段を採った。   In order to achieve the above-mentioned object, the present invention employs the following means.

本発明にかかる減速機は、
第1内歯歯車と、
前記第1内歯歯車より歯数の多い第2内歯歯車と、
前記第1内歯歯車内に配置される1段目遊星歯車と、前記第2内歯歯車内に配置される2段目遊星歯車とが回転軸で連結されてなる少なくとも2つ以上の遊星歯車と、
入力された回転力によって前記遊星歯車の軸を可動する回転力伝達部材と、
を備えていることを特徴とする。
The speed reducer according to the present invention is
A first internal gear;
A second internal gear having more teeth than the first internal gear;
At least two or more planetary gears formed by connecting a first-stage planetary gear disposed in the first internal gear and a second-stage planetary gear disposed in the second internal gear via a rotation shaft. When,
A rotational force transmitting member that moves the axis of the planetary gear by an input rotational force;
It is characterized by having.

本発明にかかる減速機によれば、高い減速比を確保することができるとともに、偏心要素がないため揺動が発生することはなく、かつ太陽歯車がないため太陽歯車と遊星歯車との摺動音の発生を抑えることができ、制振性及び静音性に優れる。また、作動力の周期変動が発生することなく、一定の出力を発生させることができる。また、ウォームギアのように歯面間のすべりがほぼ発生しないため高効率な減速機とすることができる。さらに、出力軸に加えられた逆転トルクによって遊星歯車を回転させるトルクはほとんど発生せず、歯車にせん断力として加わるため歯面間の摩擦係数によらず、高い逆転止めを有するものとすることができる。   According to the speed reducer according to the present invention, a high reduction ratio can be ensured, and since there is no eccentric element, there is no oscillation, and there is no sun gear, so there is no sliding between the sun gear and the planetary gear. The generation of sound can be suppressed, and vibration damping and silence are excellent. In addition, a constant output can be generated without causing periodic fluctuations in the operating force. Further, unlike the worm gear, slippage between the tooth surfaces hardly occurs, so that a highly efficient reduction gear can be obtained. Further, the torque that rotates the planetary gear is hardly generated by the reverse torque applied to the output shaft, and since it is applied as a shearing force to the gear, it has a high reverse stopper regardless of the coefficient of friction between the tooth surfaces. it can.

また、本発明にかかる減速機において、前記回転力伝達部材は、前記遊星歯車の回転軸を外周方向に付勢する付勢手段を有することを特徴とするものであってもよい。   Moreover, the reduction gear concerning this invention WHEREIN: The said rotational force transmission member may have an urging means which urges | biases the rotating shaft of the said planetary gear to an outer peripheral direction.

かかる構成を採用することによって、遊星歯車を内歯歯車の歯に押し付けることができるので、遊星歯車と内歯歯車の歯との間に隙間が発生することを防止でき、バックラッシュの発生を防止することができる。また、がたつきを抑えることができるので、より制振性、静音性に優れる。   By adopting such a configuration, the planetary gear can be pressed against the teeth of the internal gear, so that it is possible to prevent the occurrence of a gap between the planetary gear and the teeth of the internal gear, thereby preventing the occurrence of backlash. can do. Moreover, since rattling can be suppressed, it is more excellent in vibration control and silence.

さらに、本発明にかかる減速機において、
前記遊星歯車のうち少なくとも1つの前記遊星歯車は、前記1段目遊星歯車と前記2段目遊星歯車の位相が一致して形成された位相同一遊星歯車と、前記位相同一遊星歯車以外の歯車のうち、少なくとも1つは前記1段目遊星歯車の歯と前記2段目遊星歯車の歯とで位相差を有する位相差遊星歯車とを、備えていることを特徴とするものであってもよい。
Furthermore, in the reduction gear according to the present invention,
At least one of the planetary gears includes a phase-matching planetary gear formed by matching phases of the first-stage planetary gear and the second-stage planetary gear, and gears other than the phase-sequential planetary gear. Of these, at least one may include a phase difference planetary gear having a phase difference between the teeth of the first stage planetary gear and the teeth of the second stage planetary gear. .

本発明にかかる減速機によれば、高い減速比を確保することができ、かつ位相差を有する歯車を使用したことによって歯数の組み合わせの設計の自由度が高い減速機を提供することができる。また、偏心要素がないため、揺動が発生することはないため、制振性及び静音性に優れる。また、作動力の周期変動が発生することなく、一定の出力を発生させることができる。また、ウォームギアのように歯面間のすべりがほぼ発生しないため高効率な減速機とすることができる。さらに、出力軸に加えられた逆転トルクによって遊星歯車を回転させるトルクはほとんど発生せず、歯車にせん断力として加わるため歯面間の摩擦係数によらず、高い逆転止めを有するものとすることができる。   According to the speed reducer according to the present invention, it is possible to provide a speed reducer that can secure a high speed reduction ratio and that has a high degree of freedom in designing a combination of the number of teeth by using a gear having a phase difference. . In addition, since there is no eccentric element, there is no occurrence of swinging, and therefore excellent vibration damping and quietness. In addition, a constant output can be generated without causing periodic fluctuations in the operating force. Further, unlike the worm gear, slippage between the tooth surfaces hardly occurs, so that a highly efficient reduction gear can be obtained. Further, the torque that rotates the planetary gear is hardly generated by the reverse torque applied to the output shaft, and since it is applied as a shearing force to the gear, it has a high reverse stopper regardless of the coefficient of friction between the tooth surfaces. it can.

また、本発明にかかる減速機において、前記位相差遊星歯車は、次式で計算される位相差を有することを特徴とするものであってもよい。
Pi=m×(i−1)/C(但し、Piは、遊星歯車であり、Pが位相同一遊星歯車であり、以降iは配置されている順の数を指す。Cは遊星歯車の数、mは第1内歯歯車と第2内歯歯車の歯数の差)
Moreover, the reduction gear concerning this invention WHEREIN: The said phase difference planetary gear may have the phase difference calculated by following Formula, It may be characterized by the above-mentioned.
Pi = m × (i-1 ) / C ( where, Pi is the planetary gear, P 1 is a phase identical planetary gear, since i is .C which refers to the number of the order in which they are arranged planetary gears Number, m is the difference in the number of teeth between the first internal gear and the second internal gear)

かかる位相差遊星歯車を使用することによって、第1内歯歯車と第2内歯歯車の両方に遊星歯車を噛合させることができる。   By using such a phase difference planetary gear, the planetary gear can be meshed with both the first internal gear and the second internal gear.

さらに、本発明にかかる減速機において、前記第2内歯歯車と前記第1内歯歯車との歯数の差は、遊星歯車の個数の倍数を除くものであることを特徴とするものであってもよい。   Further, in the speed reducer according to the present invention, the difference in the number of teeth between the second internal gear and the first internal gear excludes a multiple of the number of planetary gears. May be.

さらに、本発明にかかる減速機において、
前記第2内歯歯車の内歯は、第1内歯歯車の歯先円直径とほぼ同一の歯先円直径となるように形成されていることを特徴とするものであってもよい。
Furthermore, in the reduction gear according to the present invention,
The internal teeth of the second internal gear may be formed to have a tip circle diameter substantially the same as the tip circle diameter of the first internal gear.

かかる構成を採用することによって、第1内歯歯車と第2内歯歯車とのピッチ円をほぼ同一にすることができ、好適な噛合を実現することができる。   By adopting such a configuration, the pitch circles of the first internal gear and the second internal gear can be made substantially the same, and suitable meshing can be realized.

さらに、本発明にかかる減速機において、
前記第2内歯歯車の歯数は、第1内歯歯車の歯数より1歯多く形成され、
前記遊星歯車は、位相同一遊星歯車と、前記1段目遊星歯車と前記2段目遊星歯車の位相が3分の1ずれて形成された位相差遊星歯車と、前記1段目遊星歯車と前記2段目遊星歯車の位相が3分の2ずれて形成された位相差遊星歯車とからなることを特徴とするものであってもよい。
Furthermore, in the reduction gear according to the present invention,
The number of teeth of the second internal gear is formed one more than the number of teeth of the first internal gear,
The planetary gear includes an identical phase planetary gear, a phase difference planetary gear formed by shifting the phase of the first stage planetary gear and the second stage planetary gear by one third, the first stage planetary gear, A phase difference planetary gear formed by shifting the phase of the second stage planetary gear by two-thirds may be used.

かかる構成を採用することにより、効率的で良好な作動を行う減速機を提供することができる。   By adopting such a configuration, it is possible to provide a reduction gear that performs efficient and favorable operation.

また、本発明は、前述した減速機を有するシートアジャスタを提供する。また、本発明は、前述した減速機を有し、前記第1内歯歯車をシートクッション側に固定し、前記第2内歯歯車をシートバック側に固定したリクライニング装置を提供する。本発明の減速機は、特にシートアジャスタ及びリクライニング装置に好適に使用することができる。   The present invention also provides a seat adjuster having the speed reducer described above. The present invention also provides a reclining device that includes the speed reducer described above, wherein the first internal gear is fixed to the seat cushion side, and the second internal gear is fixed to the seat back side. The speed reducer of the present invention can be suitably used particularly for a seat adjuster and a reclining device.

本発明にかかる減速機によれば、高い減速比を確保することができ、かつ位相差を有する歯車を使用したことによって、歯数の組み合わせの設計の自由度が高い減速機を提供することができる。   According to the speed reducer according to the present invention, it is possible to provide a speed reducer having a high degree of freedom in designing the combination of the number of teeth by using a gear that can ensure a high speed reduction ratio and has a phase difference. it can.

図1は、本実施形態にかかる減速機100の斜視図である。FIG. 1 is a perspective view of a speed reducer 100 according to the present embodiment. 図2は、本実施形態にかかる減速機100の第1内歯歯車10及び第2内歯歯車20を外した状態を示す斜視図である。FIG. 2 is a perspective view showing a state where the first internal gear 10 and the second internal gear 20 of the speed reducer 100 according to the present embodiment are removed. 図3は、本実施形態にかかる遊星歯車40及び回転力伝達部材30の分解斜視図である。FIG. 3 is an exploded perspective view of the planetary gear 40 and the rotational force transmission member 30 according to the present embodiment. 図4は、本実施形態にかかる回転伝達部材30の背面側を示す斜視図である。FIG. 4 is a perspective view showing the back side of the rotation transmitting member 30 according to the present embodiment. 図5は、本実施形態にかかる回転力伝達部材30の付勢手段の別実施形態を示す斜視図である。FIG. 5 is a perspective view showing another embodiment of the biasing means of the rotational force transmission member 30 according to this embodiment. 図6は、本実施形態にかかる遊星歯車40を第2内歯歯車20側から視た正面図である。FIG. 6 is a front view of the planetary gear 40 according to the present embodiment as viewed from the second internal gear 20 side. 図7は、本実施形態にかかる減速機100の歯車の噛合状態を示す模式図である。FIG. 7 is a schematic diagram showing the meshing state of the gears of the speed reducer 100 according to the present embodiment. 図8は、本実施形態にかかる減速機100を適用したシートアジャスタ及びリクライニング装置の概念図である。FIG. 8 is a conceptual diagram of a seat adjuster and a reclining device to which the reduction gear 100 according to the present embodiment is applied. 図9は、本実施形態にかかる減速機100の別実施形態を示す斜視図である。FIG. 9 is a perspective view showing another embodiment of the speed reducer 100 according to the present embodiment.

以下、本発明にかかる減速機100の実施形態について、実施例における図面を参照しつつ詳細に説明する。図1は、本実施形態にかかる減速機100の斜視図である。図2は、本実施形態にかかる減速機100の第1内歯歯車10及び第2内歯歯車20を外した状態を示す斜視図である。図3は、本実施形態にかかる遊星歯車40及び回転力伝達部材30の分解斜視図である。なお、以下に説明する実施形態及び図面は、本発明の実施形態の一部を例示するものであり、これらの構成に限定する目的に使用されるものではない。また、各図において対応する構成要素には同一又は類似の符号が付されている。   Hereinafter, an embodiment of a reduction gear 100 according to the present invention will be described in detail with reference to the drawings in the examples. FIG. 1 is a perspective view of a speed reducer 100 according to the present embodiment. FIG. 2 is a perspective view showing a state where the first internal gear 10 and the second internal gear 20 of the speed reducer 100 according to the present embodiment are removed. FIG. 3 is an exploded perspective view of the planetary gear 40 and the rotational force transmission member 30 according to the present embodiment. The embodiments and drawings described below exemplify a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations. Moreover, the same or similar code | symbol is attached | subjected to the corresponding component in each figure.

本実施形態にかかる減速機100は、図2に示すように主として、第1内歯歯車10と、第2内歯歯車20と、第1内歯歯車10側に配置される1段目遊星歯車40aと第2内歯歯車20側に配置される2段目遊星歯車40bとを同一の回転軸81で連結した複数の遊星歯車40と、外部から入力された回転力をこれら遊星歯車40に伝達する回転力伝達部材30と、を備えている。   As shown in FIG. 2, the speed reducer 100 according to the present embodiment mainly includes a first internal gear 10, a second internal gear 20, and a first stage planetary gear disposed on the first internal gear 10 side. A plurality of planetary gears 40 in which 40a and a second stage planetary gear 40b arranged on the second internal gear 20 side are connected by the same rotation shaft 81, and a rotational force input from the outside is transmitted to these planetary gears 40. And a rotational force transmission member 30 that performs.

第1内歯歯車10は、内周側にn個(nは10以上の整数)の歯数を有する内歯歯車である。nは、好ましくは30以上、より好ましくは、50以上であるとよい。実施例においては、第1内歯歯車10は、固定側の内歯歯車を構成する。   The first internal gear 10 is an internal gear having n teeth (n is an integer of 10 or more) on the inner peripheral side. n is preferably 30 or more, and more preferably 50 or more. In the embodiment, the first internal gear 10 constitutes a fixed-side internal gear.

第2内歯歯車20は、出力側の歯車であり、この第2内歯歯車20自体が回転して出力がされる。図1に示すように、出力軸83を別途設けても構わないし、第2内歯歯車20自体を回転される側の部材(例えば、リクライニング装置のシートバック等)に直接取り付けても良い。
第2内歯歯車20は、歯数が第1内歯歯車nに対してm個(mは自然数)多い歯数(n+m)を有する。mが歯車の個数の倍数の場合には、いわゆる不思議遊星歯車を構成する。mが歯車の個数の倍数以外の場合には、第1内歯歯車10の歯と第2内歯歯車20の歯とに位相差がある。かかる場合には、第1内歯歯車10と第2内歯歯車20に配置される遊星歯車40に位相差を設ける必要がある。詳細は、後述する。また、ここでは、第1内歯歯車10を固定側、第2内歯歯車20を出力側としたが、その逆も利用可能であり、その場合は、回転方向が逆となる。
The second internal gear 20 is an output-side gear, and the second internal gear 20 itself rotates to output. As shown in FIG. 1, the output shaft 83 may be provided separately, or the second internal gear 20 itself may be directly attached to a rotated member (for example, a seat back of a reclining device).
The second internal gear 20 has a number of teeth (n + m) that is greater by m (m is a natural number) than the first internal gear n. When m is a multiple of the number of gears, a so-called mysterious planetary gear is formed. When m is not a multiple of the number of gears, there is a phase difference between the teeth of the first internal gear 10 and the teeth of the second internal gear 20. In such a case, it is necessary to provide a phase difference between the planetary gears 40 arranged in the first internal gear 10 and the second internal gear 20. Details will be described later. Here, the first internal gear 10 is the fixed side and the second internal gear 20 is the output side, but the reverse is also possible, in which case the rotation direction is reversed.

回転力伝達部材30は、各遊星歯車40の中心に配置され、手動入力装置又はモータ等の動力源と連動した入力軸80と連結されていて、入力軸80から入力された回転力を遊星歯車40に伝達する機能を有する。回転力伝達部材30は、図3に示すように、遊星歯車40の回転軸81が挿入される挿入溝31が形成された回転力伝達板32を有している。挿入溝31は、配置される遊星歯車40の個数と同じ数形成されており、それぞれの挿入溝31は、各遊星歯車40の回転軸81が均等に配置されるように形成される。すなわち、遊星歯車40が3個の場合は、それぞれの挿入溝31と中心のなす角がそれぞれ120°となるように形成される。回転力伝達部材30の背面側は、図4に示すように、入力軸80と嵌合する嵌合孔36が形成されている。各挿入溝31は、回転軸81を外周側に付勢する付勢手段を有している。すなわち、各遊星歯車40を内歯歯車10,20の歯に押し付けるように形成されている。付勢手段としては、特に限定するものではなく、例えば、図3に示すように、挿入溝31の内側と、回転力伝達板32の外周の内側とが連続するように切欠部33を設け、挿入溝31に連結されるアーム部34を形成してもよい。このように作製することで、アーム部34の弾性力によって回転軸81を外周側に押し付けることができる。また、図5に示すように、挿入溝31に押圧ピン37を設けても良い。要するに、回転軸81を外周側に付勢する手段であれば、その構成は特に限定されない。   The rotational force transmission member 30 is disposed at the center of each planetary gear 40 and is connected to an input shaft 80 that is linked to a power source such as a manual input device or a motor. The rotational force input from the input shaft 80 is transmitted to the planetary gear. 40. As shown in FIG. 3, the rotational force transmission member 30 has a rotational force transmission plate 32 in which an insertion groove 31 into which the rotational shaft 81 of the planetary gear 40 is inserted is formed. The insertion grooves 31 are formed in the same number as the number of planetary gears 40 to be arranged, and each insertion groove 31 is formed so that the rotation shafts 81 of the planetary gears 40 are evenly arranged. That is, when there are three planetary gears 40, the angle formed between each insertion groove 31 and the center is 120 °. As shown in FIG. 4, a fitting hole 36 for fitting with the input shaft 80 is formed on the back side of the rotational force transmitting member 30. Each insertion groove 31 has urging means for urging the rotating shaft 81 toward the outer peripheral side. That is, each planetary gear 40 is formed to be pressed against the teeth of the internal gears 10 and 20. The biasing means is not particularly limited. For example, as shown in FIG. 3, a notch 33 is provided so that the inside of the insertion groove 31 and the inside of the outer periphery of the rotational force transmission plate 32 are continuous. An arm portion 34 connected to the insertion groove 31 may be formed. By manufacturing in this way, the rotating shaft 81 can be pressed to the outer peripheral side by the elastic force of the arm portion 34. Further, as shown in FIG. 5, a pressing pin 37 may be provided in the insertion groove 31. In short, the configuration is not particularly limited as long as it is a means for urging the rotating shaft 81 toward the outer peripheral side.

遊星歯車40は、図2に示すように、第1内歯歯車10に配置される1段目遊星歯車40aと、第2内歯歯車20に配置される2段目遊星歯車40bとを有する。1段目遊星歯車40aと2段目遊星歯車40bとは、同一の歯数を有し、それぞれが同一の回転軸81により連結されて同期して回転する。1段目遊星歯車40aと2段目遊星歯車40bとの間には、回転力伝達板32が挿入可能な隙間が形成される。遊星歯車40は、少なくとも2つ以上設けられる。第2内歯歯車20の歯数が第1内歯歯車nに対して配置される遊星歯車40の個数の倍数である場合には、すべての遊星歯車40は、1段目遊星歯車40aの歯と2段目遊星歯車40bの歯とは位相を設けることなく同一の位相で作製される。   As shown in FIG. 2, the planetary gear 40 includes a first-stage planetary gear 40 a disposed on the first internal gear 10 and a second-stage planetary gear 40 b disposed on the second internal gear 20. The first-stage planetary gear 40a and the second-stage planetary gear 40b have the same number of teeth, and are connected by the same rotation shaft 81 and rotate synchronously. A gap into which the rotational force transmission plate 32 can be inserted is formed between the first stage planetary gear 40a and the second stage planetary gear 40b. At least two or more planetary gears 40 are provided. When the number of teeth of the second internal gear 20 is a multiple of the number of planetary gears 40 arranged with respect to the first internal gear n, all the planetary gears 40 have teeth of the first stage planetary gear 40a. And the teeth of the second stage planetary gear 40b are produced with the same phase without providing a phase.

第2内歯歯車20の歯数が第1内歯歯車nに対して配置される遊星歯車40の個数の倍数で以外である場合は、以下のように作製される。遊星歯車40の少なくとも1つは、図6に示すように1段目遊星歯車41aと2段目遊星歯車41bとの位相がずれていない同一の位相を有する位相同一遊星歯車41を有する。また、少なくとも1以上の遊星歯車40は、1段目遊星歯車42aと2段目遊星歯車42bの歯の位相をずらして(位相が異なる)形成された位相差遊星歯車42を有している。位相差遊星歯車の位相差は以下のように計算される。
Pi=m×(i−1)/C(但し、Piは、遊星歯車であり、Pが位相同一遊星歯車41であり、以降iは配置されている順番を指す。Cは遊星歯車の数、mは第1内歯歯車10と第2内歯歯車20の歯数の差)
例えば、遊星歯車40が3つで、第1内歯歯車10と第2内歯歯車20の歯数の差が1である場合は、位相同一遊星歯車41がP、そこから順番に配置されている順に遊星歯車42=P、遊星歯車43=P、C=3、m=1となる。よって
=1×(1−1)/3=0/3=0 (位相差なし)
=1×(2−1)/3=1/3(位相差 1/3)
=1×(3−1)/3=2/3(位相差 2/3)
となる。
従って、遊星歯車40は、位相同一遊星歯車41、位相差3分の1の位相差遊星歯車42及び位相差3分の2の位相差遊星歯車43の組み合わせとなる。
When the number of teeth of the second internal gear 20 is other than a multiple of the number of planetary gears 40 arranged with respect to the first internal gear n, the second internal gear 20 is manufactured as follows. At least one of the planetary gears 40 has the same phase planetary gear 41 having the same phase where the phases of the first stage planetary gear 41a and the second stage planetary gear 41b are not shifted as shown in FIG. Further, at least one planetary gear 40 has a phase difference planetary gear 42 formed by shifting the phases of teeth of the first stage planetary gear 42a and the second stage planetary gear 42b (different in phase). The phase difference of the phase difference planetary gear is calculated as follows.
Pi = m × (i-1 ) / C ( where, Pi is the planetary gear, a P 1 phase identical planetary gear 41, the number of .C planetary gear pointing to order since i is located , M is the difference in the number of teeth of the first internal gear 10 and the second internal gear 20)
For example, when there are three planetary gears 40 and the difference in the number of teeth between the first internal gear 10 and the second internal gear 20 is 1, the phase-in-plane planetary gear 41 is arranged in order from P 1 . Planetary gear 42 = P 2 , planetary gear 43 = P 3 , C = 3, and m = 1. Therefore, P 1 = 1 × (1-1) / 3 = 0/3 = 0 (no phase difference)
P 2 = 1 × (2-1) / 3 = 1/3 (phase difference 1/3)
P 3 = 1 × (3-1) / 3 = 2/3 (phase difference 2/3)
It becomes.
Accordingly, the planetary gear 40 is a combination of the phase-independent planetary gear 41, the phase difference planetary gear 42 having a phase difference of 1/3, and the phase difference planetary gear 43 having a phase difference of 2/3.

また、例えば、遊星歯車が4つで、第1内歯歯車と第2内歯歯車の歯数の差が2である場合は、位相同一遊星歯車がP、そこから順番に配置されている順に遊星歯車=P、遊星歯車=P、遊星歯車=P、C=4、m=2となる。よって
=2×(1−1)/4=0/4=0 (位相差なし)
=2×(2−1)/4=1/2(位相差 1/2)
=2×(3−1)/4=1 (位相差 なし)
=2×(4−1)/4=3/2(位相差 1/2)
となる。
従って、遊星歯車は、位相同一遊星歯車、位相差2分の1の位相差遊星歯車、位相差1の位相差遊星歯車(この場合位相差なしの遊星歯車40となる)及び位相差2分の1の位相差遊星歯車の組み合わせとなる(図示しない)。
Further, for example, when there are four planetary gears and the difference in the number of teeth between the first internal gear and the second internal gear is 2, the phase-internal planetary gears are arranged in order from P 1 . In order, planetary gear = P 2 , planetary gear = P 3 , planetary gear = P 4 , C = 4, and m = 2. Therefore, P 1 = 2 × (1-1) / 4 = 0/4 = 0 (no phase difference)
P 2 = 2 × (2-1) / 4 = 1/2 (phase difference 1/2)
P 3 = 2 × (3-1) / 4 = 1 (no phase difference)
P 4 = 2 × (4-1) / 4 = 3/2 (phase difference 1/2)
It becomes.
Accordingly, the planetary gear includes a planetary gear having the same phase, a phase difference planetary gear having a phase difference of 1/2, a phase difference planetary gear having a phase difference of 1 (in this case, the planetary gear 40 having no phase difference), and a phase difference of ½. 1 phase difference planetary gear combination (not shown).

このような位相差を有する遊星歯車40を組み合わせ、所定の配置をすることで、図7に示すように、1段目遊星歯車40aは第1内歯歯車10に噛合した状態で、2段目遊星歯車40bを第2内歯歯車20に噛合させることができる。すなわち、1段目遊星歯車40a及び2段目遊星歯車40bともに内歯歯車と位相があい噛合することになる。なお、第2内歯歯車20の歯数は第1内歯歯車10の歯数と異なり、ピッチ円が異なるので、そのままでは正しく噛み合わない可能性があるので、ほぼ同一の歯先円直径となるように、転位歯車を使用してもよい。   By combining the planetary gears 40 having such a phase difference and arranging them in a predetermined manner, the first stage planetary gear 40a is engaged with the first internal gear 10 as shown in FIG. The planetary gear 40 b can be meshed with the second internal gear 20. That is, both the first stage planetary gear 40a and the second stage planetary gear 40b are meshed with the internal gear in phase. Since the number of teeth of the second internal gear 20 is different from the number of teeth of the first internal gear 10 and the pitch circle is different, it may not be meshed correctly as it is, so that the diameter of the tip circle is almost the same. As such, a shift gear may be used.

以上のように構成された各構成部品は、以下のようにして組み立てられ、減速機100とされる。図2に示すように、第1内歯歯車10の中心に入力軸80と連動した回転力伝達部材30が中心に配置される。それぞれの遊星歯車40の回転軸81は挿入溝31に挿入され、それぞれの遊星歯車40が均等に配置される。すなわち、遊星歯車40が3個の場合は、図2に示すようにそれぞれ中心とのなす角が120°となるように配置される。遊星歯車40が4個の場合は、90°となるように配置される(図示しない。)。2段目遊星歯車40b側には、第2内歯歯車20が2段目遊星歯車40bの歯車に噛合するように取り付けられる。   The component parts configured as described above are assembled as follows to obtain a reduction gear 100. As shown in FIG. 2, the rotational force transmission member 30 interlocked with the input shaft 80 is disposed at the center of the first internal gear 10. The rotating shaft 81 of each planetary gear 40 is inserted into the insertion groove 31, and the planetary gears 40 are evenly arranged. That is, when there are three planetary gears 40, they are arranged so that the angle formed with the center is 120 ° as shown in FIG. When there are four planetary gears 40, they are arranged to be 90 ° (not shown). The second internal gear 20 is attached to the second stage planetary gear 40b side so as to mesh with the gear of the second stage planetary gear 40b.

こうして構成された減速機100によれば、入力軸80により回転力伝達部材30を回転させることにより、それぞれの遊星歯車40の回転軸81に対して内歯歯車10,20内を周回させる方向に力が加わり、遊星歯車40は自転しつつ、内歯歯車10,20の歯に沿って公転する。   According to the speed reducer 100 configured in this manner, the rotational force transmitting member 30 is rotated by the input shaft 80, so that the internal gears 10, 20 circulate around the rotation shaft 81 of each planetary gear 40. A force is applied, and the planetary gear 40 revolves along the teeth of the internal gears 10 and 20 while rotating.

遊星歯車40が第1内歯歯車10内を1周すると、第2内歯歯車20は、第1内歯歯車10と第2内歯歯車20の歯数差m分だけ回転することになる。よって、減速機100の減速比は、歯数差m:第2内歯歯車20の歯数となる。   When the planetary gear 40 makes one round in the first internal gear 10, the second internal gear 20 rotates by the difference in the number of teeth m between the first internal gear 10 and the second internal gear 20. Therefore, the reduction ratio of the reduction gear 100 is the number of teeth difference m: the number of teeth of the second internal gear 20.

こうして作製された減速機100は、高い減速比を有するものとすることができる。また、位相差を有する遊星歯車40を組み合わせることによって、不思議遊星歯車と比較して第1内歯歯車の歯数と第2内歯歯車の歯数との組み合わせの自由度が高く適切な減速比を有する減速機100を提供することができる。   The reduction gear 100 thus manufactured can have a high reduction ratio. Further, by combining the planetary gear 40 having a phase difference, the degree of freedom of the combination of the number of teeth of the first internal gear and the number of teeth of the second internal gear is high as compared with the mysterious planetary gear, and an appropriate reduction ratio. The speed reducer 100 having the following can be provided.

また、かかる減速機100は、タウメル機構のような偏心要素がないため、揺動がなく非常に制振性静音性に優れたものとすることができる。また、作動力の周期変動が発生せず、一定の出力を確保することができる。また、ウォームギアのように、歯面間のすべりがほぼ発生しないため高効率な減速機とすることができる。   In addition, since the speed reducer 100 does not have an eccentric element like the Taumel mechanism, it can be made extremely free of vibration and excellent in vibration control and silence. In addition, there is no periodic fluctuation of the operating force, and a constant output can be ensured. Further, unlike the worm gear, the slip between the tooth surfaces hardly occurs, so that a highly efficient reduction gear can be obtained.

また、内歯歯車10,20に対して回転力伝達部材30によって遊星歯車40が押し付けられているので、内歯歯車10,20と遊星歯車40との間に隙間が発生することを防止するため、バックラッシュが起きにくいという効果を有する。   Further, since the planetary gear 40 is pressed against the internal gears 10 and 20 by the rotational force transmission member 30, a gap is prevented from being generated between the internal gears 10 and 20 and the planetary gear 40. , Backlash is less likely to occur.

さらに、出力側に負荷がかかり逆転トルクが発生した場合は、第2内歯歯車20を回転させる力が発生し、2段目遊星歯車40bを動かそうとする力が加わるが、2段目遊星歯車40bは、1段目遊星歯車40aと接続されており、1段目遊星歯車40aは固定された第1内歯歯車10と噛合しているため回転が阻止される。第1内歯歯車10と第2内歯歯車20は歯先円がほぼ同一であるから、出力側に加えられた逆転トルクは、1段目遊星歯車40aを回転させるトルクはほとんど発生せず、1段目遊星歯車40aにせん断力として加わる。そのため歯面間の摩擦係数によらず、逆転止めが成立した減速機100とすることができる。   Furthermore, when a load is applied on the output side and reverse torque is generated, a force for rotating the second internal gear 20 is generated, and a force for moving the second stage planetary gear 40b is applied. The gear 40b is connected to the first-stage planetary gear 40a, and the first-stage planetary gear 40a is engaged with the fixed first internal gear 10 and thus prevented from rotating. Since the tooth tip circles of the first internal gear 10 and the second internal gear 20 are substantially the same, the reverse rotation torque applied to the output side hardly generates torque for rotating the first stage planetary gear 40a. A shearing force is applied to the first stage planetary gear 40a. Therefore, the speed reducer 100 in which the reverse rotation prevention is established can be obtained regardless of the friction coefficient between the tooth surfaces.

かかる減速機100は、図8に示すように、シートアジャスタ110やリクライニング装置150に好適に使用することができる。図8は、本発明の減速機100をシートアジャスタ110として使用したリクライニング装置150を示すもので、シートバック160とシート170とからなる。リクライニング装置150は、シートアジャスタ110と、減速機100の第1内歯歯車10(図示しない)が固定されたブラケット172と、第2内歯歯車20(図示しない)が固定されたブラケット162とからなる。ブラケット172はシート170に固定され、ブラケット162はシートバック160側に固定されている。リクライニング装置150は、図示しないスイッチが操作されるとブラケット162とブラケット172との相対回転角度、即ち、シートバック60のシートクッション70に対する角度を調整することができる。   Such a reduction gear 100 can be suitably used for a seat adjuster 110 and a reclining device 150 as shown in FIG. FIG. 8 shows a reclining device 150 using the speed reducer 100 of the present invention as the seat adjuster 110, and includes a seat back 160 and a seat 170. The reclining device 150 includes a seat adjuster 110, a bracket 172 to which the first internal gear 10 (not shown) of the speed reducer 100 is fixed, and a bracket 162 to which the second internal gear 20 (not shown) is fixed. Become. The bracket 172 is fixed to the seat 170, and the bracket 162 is fixed to the seat back 160 side. When a switch (not shown) is operated, the reclining device 150 can adjust the relative rotation angle between the bracket 162 and the bracket 172, that is, the angle of the seat back 60 with respect to the seat cushion 70.

(実施例)
本発明にかかる減速機100の実施例について、図に沿って説明する。実施例にかかる減速機100は、96歯の歯数を有する第1内歯歯車10と、36歯の歯数を有する3つの遊星歯車40と、97歯の歯数を有する第2内歯歯車20と、回転力伝達部材30とを備えている。
(Example)
An embodiment of a reduction gear 100 according to the present invention will be described with reference to the drawings. The reduction gear 100 according to the embodiment includes a first internal gear 10 having 96 teeth, three planetary gears 40 having 36 teeth, and a second internal gear having 97 teeth. 20 and a rotational force transmission member 30.

第1内歯歯車10には、図2に示すように、中心に回転力伝達部材30があり、回転力伝達部材30の挿入溝31にそれぞれ3つの遊星歯車41、遊星歯車42及び遊星歯車43が回転力伝達部材30を中心に120°間隔となるように等間隔に配置されている。第1内歯歯車10は、第1内歯歯車収容ケース(図示しない)等に固定されており、第1内歯歯車10自体は移動不可能に配置される。なお、第1内歯歯車10には、1段目遊星歯車41a、1段目遊星歯車42a、1段目遊星歯車43aのみが配置される。   As shown in FIG. 2, the first internal gear 10 has a rotational force transmission member 30 at the center, and three planetary gears 41, planetary gears 42, and planetary gears 43 are inserted into the insertion grooves 31 of the rotational force transmission member 30. Are arranged at equal intervals around the rotational force transmission member 30 at 120 ° intervals. The first internal gear 10 is fixed to a first internal gear housing case (not shown) or the like, and the first internal gear 10 itself is disposed so as not to move. The first internal gear 10 includes only the first stage planetary gear 41a, the first stage planetary gear 42a, and the first stage planetary gear 43a.

第2内歯歯車20には、遊星歯車40の2段目遊星歯車41b、2段目遊星歯車42b、2段目遊星歯車43bのみが配置される。2段目遊星歯車41b、42b、43bは、1段目遊星歯車41a、42a、43aと同一の歯数の歯車で構成されており、それぞれ同軸の回転軸81を有し、対応する1段目遊星歯車40aと2段目遊星歯車40bは、同期して回転するように接続されている。   In the second internal gear 20, only the second stage planetary gear 41b, the second stage planetary gear 42b, and the second stage planetary gear 43b of the planetary gear 40 are arranged. The second stage planetary gears 41b, 42b, 43b are composed of gears having the same number of teeth as the first stage planetary gears 41a, 42a, 43a, each having a coaxial rotation shaft 81, and corresponding first stage gears. The planetary gear 40a and the second stage planetary gear 40b are connected so as to rotate synchronously.

それぞれの遊星歯車は、前述した計算式のとおり、遊星歯車40が3つで、第1内歯歯車10と第2内歯歯車20の歯数の差が1であるので、
=1×(1−1)/3=0/3=0 (位相差なし)
=1×(2−1)/3=1/3(位相差 1/3)
=1×(3−1)/3=2/3(位相差 2/3)
となるので、遊星歯車41(P)は、歯車の位相を同一となるように(歯が完全に一致するように)接続し、遊星歯車42(P)は、位相差を3分の1に設定し、遊星歯車43(P)は、位相差を3分の2に設定する。これにより、図7に示すように、1歯分多い97歯の第2内歯歯車20と2段目遊星歯車40bの位相が一致することになる。しかし、第2内歯歯車20の歯数は97歯であるので、96歯の第1内歯歯車10と比較し、ピッチ円が大きいので、そのままでは正しく噛み合わない可能性がある。そこで、第2内歯歯車20の歯又は第1内歯歯車10の歯を歯直角に転位させ、歯先円を小さくしそれぞれの内歯歯車と同程度になるように設計してもよい。
Each planetary gear has three planetary gears 40 as described above, and the difference in the number of teeth between the first internal gear 10 and the second internal gear 20 is 1.
P 1 = 1 × (1-1) / 3 = 0/3 = 0 (no phase difference)
P 2 = 1 × (2-1) / 3 = 1/3 (phase difference 1/3)
P 3 = 1 × (3-1) / 3 = 2/3 (phase difference 2/3)
Therefore, the planetary gear 41 (P 1 ) is connected so that the phases of the gears are the same (the teeth are completely matched), and the planetary gear 42 (P 2 ) has a phase difference of 3 minutes. The planetary gear 43 (P 3 ) is set to 1 and the phase difference is set to 2/3. As a result, as shown in FIG. 7, the phases of the 97-second second internal gear 20 having one tooth and the second-stage planetary gear 40b coincide. However, since the number of teeth of the second internal gear 20 is 97, the pitch circle is larger than that of the first internal gear 10 having 96 teeth. Therefore, the teeth of the second internal gear 20 or the teeth of the first internal gear 10 may be shifted at a right angle so that the tip circle is made smaller and comparable to each internal gear.

かかる減速機100によると、3組の遊星歯車40が内歯歯車の周りを1周して元の位置に来た場合を考えると、遊星歯車40は第1内歯歯車10の歯数分、すなわち、96歯と噛合したこととなる。しかし、第2内歯歯車20は97歯であるから、1歯分のみ第2内歯歯車20は回転することになる。すなわち、第2内歯歯車20の第1内歯歯車10に対する減速比は、1:97となる。従って、入力軸80に対する第2内歯歯車20の減速比は、1:97となる。   According to the speed reducer 100, considering that the three planetary gears 40 have made one round around the internal gear and have come to the original position, the planetary gear 40 has the number of teeth of the first internal gear 10, That is, it meshes with 96 teeth. However, since the second internal gear 20 has 97 teeth, the second internal gear 20 rotates by one tooth. That is, the reduction ratio of the second internal gear 20 to the first internal gear 10 is 1:97. Therefore, the reduction ratio of the second internal gear 20 with respect to the input shaft 80 is 1:97.

こうして作製された減速機100は、第1内歯歯車10と第2内歯歯車20との歯数差が1であるにもかかわらず、遊星歯車40がいずれにも適切に噛合しつつ回転することができ、減速比の大きい減速機を提供することができる。   The speed reducer 100 manufactured in this way rotates while the planetary gear 40 is properly meshed with each other even though the difference in the number of teeth between the first internal gear 10 and the second internal gear 20 is 1. Therefore, it is possible to provide a reduction gear having a large reduction ratio.

なお、本発明は上述した実施形態に何ら限定されることはなく、本発明の技術的範囲に属する限り種々の態様で実施し得る。   The present invention is not limited to the above-described embodiments, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

上述した実施形態においては、回転力伝達部材30の回転力伝達板32を、1段目遊星歯車40aと2断目遊星歯車40bとの間に設けたが、図9に示すように、2段目遊星歯車40bの第2内歯歯車20側に設けても良いし、1段目遊星歯車40aの第1内歯歯車10側に設けてもよい。又1段目遊星歯車40aの第1内歯歯車10側と2段目遊星歯車40bの第2内歯歯車20側の両方に設けても良い。   In the embodiment described above, the rotational force transmission plate 32 of the rotational force transmission member 30 is provided between the first-stage planetary gear 40a and the second-stage planetary gear 40b. However, as shown in FIG. It may be provided on the second internal gear 20 side of the first planetary gear 40b, or may be provided on the first internal gear 10 side of the first stage planetary gear 40a. Further, it may be provided both on the first internal gear 10 side of the first stage planetary gear 40a and on the second internal gear 20 side of the second stage planetary gear 40b.

上述した実施形態で示すように、シートアジャスタに産業上利用可能である。   As shown in the above-described embodiment, the seat adjuster can be industrially used.

10…第1内歯歯車、20…第2内歯歯車、30…回転力伝達部材、31…挿入溝、32…回転力伝達板、33…切欠部、34…アーム部、36…嵌合孔、37…押圧ピン、40…遊星歯車、40a…1段目遊星歯車、40b…2段目遊星歯車、41…位相同一遊星歯車、41a…1段目遊星歯車、41b…2段目遊星歯車、42…位相差遊星歯車、42a…1段目遊星歯車、42b…2段目遊星歯車、80…入力軸、81…回転軸、83…出力軸、100…減速機 DESCRIPTION OF SYMBOLS 10 ... 1st internal gear, 20 ... 2nd internal gear, 30 ... Rotation force transmission member, 31 ... Insertion groove, 32 ... Rotation force transmission board, 33 ... Notch part, 34 ... Arm part, 36 ... Fitting hole 37 ... Pressing pin, 40 ... Planet gear, 40a ... First planet gear, 40b ... Second planet gear, 41 ... Phase-equal planet gear, 41a ... First planet gear, 41b ... Second planet gear, 42 ... Phase difference planetary gear, 42a ... First stage planetary gear, 42b ... Second stage planetary gear, 80 ... Input shaft, 81 ... Rotating shaft, 83 ... Output shaft, 100 ... Reducer

Claims (9)

第1内歯歯車と、
前記第1内歯歯車より歯数の多い第2内歯歯車と、
前記第1内歯歯車内に配置される1段目遊星歯車と、前記第2内歯歯車内に配置される2段目遊星歯車とが回転軸で連結されてなる少なくとも2つ以上の遊星歯車と、
入力された回転力によって前記遊星歯車の回転軸を可動する回転力伝達部材と、
を備えていることを特徴とする減速機。
A first internal gear;
A second internal gear having more teeth than the first internal gear;
At least two or more planetary gears formed by connecting a first-stage planetary gear disposed in the first internal gear and a second-stage planetary gear disposed in the second internal gear via a rotation shaft. When,
A rotational force transmitting member that moves the rotational axis of the planetary gear by the input rotational force;
A speed reducer comprising:
前記回転力伝達部材は、前記遊星歯車の回転軸を外周方向に付勢する付勢手段を有することを特徴とする請求項1に記載の減速機。   The speed reducer according to claim 1, wherein the rotational force transmission member includes a biasing unit that biases a rotation shaft of the planetary gear in an outer circumferential direction. 前記遊星歯車のうち少なくとも1つの前記遊星歯車は、前記1段目遊星歯車と前記2段目遊星歯車の位相が一致して形成された位相同一遊星歯車と、前記位相同一遊星歯車以外の歯車のうち、少なくとも1つは前記1段目遊星歯車の歯と前記2段目遊星歯車の歯とで位相差を有する位相差遊星歯車とを、備えていることを特徴とする請求項1又は2に記載の減速機。   At least one of the planetary gears includes a phase-matching planetary gear formed by matching phases of the first-stage planetary gear and the second-stage planetary gear, and gears other than the phase-sequential planetary gear. Of these, at least one includes a phase difference planetary gear having a phase difference between the teeth of the first stage planetary gear and the teeth of the second stage planetary gear. The reducer described. 前記位相差遊星歯車は、次式で計算される位相差を有することを特徴とする請求項3に記載の減速機。
Pi=m×(i−1)/C(但し、Piは、遊星歯車であり、Pが位相同一遊星歯車であり、以降iは配置されている順の数を指す。Cは遊星歯車の数、mは第1内歯歯車と第2内歯歯車の歯数の差)
The speed reducer according to claim 3, wherein the phase difference planetary gear has a phase difference calculated by the following equation.
Pi = m × (i-1 ) / C ( where, Pi is the planetary gear, P 1 is a phase identical planetary gear, since i is .C which refers to the number of the order in which they are arranged planetary gears Number, m is the difference in the number of teeth between the first internal gear and the second internal gear)
前記第2内歯歯車と前記第1内歯歯車との歯数の差は、遊星歯車の個数の倍数を除くものであることを特徴とする請求項1から4のいずれか1項に記載の減速機。   The difference in the number of teeth between the second internal gear and the first internal gear is obtained by excluding a multiple of the number of planetary gears, according to any one of claims 1 to 4. Decelerator. 前記第2内歯歯車の内歯は、前記第1内歯歯車の歯先円直径とほぼ同一の歯先円直径となるように形成されていることを特徴とする請求項1から5のいずれか1項に記載の減速機。   The internal teeth of the second internal gear are formed so as to have a tip circle diameter substantially the same as the tip circle diameter of the first internal gear. The reducer according to claim 1. 前記第2内歯歯車の歯数は、前記第1内歯歯車の歯数より1歯多く形成され、
前記遊星歯車は、位相同一遊星歯車と、前記1段目遊星歯車と前記2段目遊星歯車の位相が3分の1ずれて形成された位相差遊星歯車と、前記1段目遊星歯車と前記2段目遊星歯車の位相が3分の2ずれて形成された位相差遊星歯車とからなることを特徴とする請求項3から6のいずれか1項に記載の減速機。
The number of teeth of the second internal gear is one more than the number of teeth of the first internal gear,
The planetary gear includes an identical phase planetary gear, a phase difference planetary gear formed by shifting the phase of the first stage planetary gear and the second stage planetary gear by one third, the first stage planetary gear, The speed reducer according to any one of claims 3 to 6, comprising a phase difference planetary gear formed by shifting the phase of the second stage planetary gear by two-thirds.
請求項1から7のいずれか1項に記載の減速機を備えたことを特徴とするシートアジャスタ。   A seat adjuster comprising the speed reducer according to any one of claims 1 to 7. 前記第1内歯歯車をシートクッション側に固定し、
前記第2内歯歯車をシートバック側に固定した請求項1から7のいずれか1に記載の減速機を用いるリクライニング装置。

Fixing the first internal gear to the seat cushion side,
A reclining device using the speed reducer according to any one of claims 1 to 7, wherein the second internal gear is fixed to a seat back side.

JP2016249526A 2016-12-22 2016-12-22 Reducer, seat adjuster and reclining device with this reducer Active JP6910140B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016249526A JP6910140B2 (en) 2016-12-22 2016-12-22 Reducer, seat adjuster and reclining device with this reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016249526A JP6910140B2 (en) 2016-12-22 2016-12-22 Reducer, seat adjuster and reclining device with this reducer

Publications (2)

Publication Number Publication Date
JP2018105336A true JP2018105336A (en) 2018-07-05
JP6910140B2 JP6910140B2 (en) 2021-07-28

Family

ID=62786696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016249526A Active JP6910140B2 (en) 2016-12-22 2016-12-22 Reducer, seat adjuster and reclining device with this reducer

Country Status (1)

Country Link
JP (1) JP6910140B2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263748A (en) * 1984-06-13 1985-12-27 Toyoda Gosei Co Ltd Steering wheel
JPS61238567A (en) * 1985-04-15 1986-10-23 Toyoda Gosei Co Ltd Steering wheel
JPS6334343A (en) * 1986-07-28 1988-02-15 Toshiba Corp Differential planetary gear device
JPH03223546A (en) * 1990-01-30 1991-10-02 Yashima Eng Kk Speed reducer
JPH03105346U (en) * 1989-11-02 1991-10-31
JPH051335U (en) * 1991-06-28 1993-01-14 池田物産株式会社 Reclining device
JP2000027954A (en) * 1998-07-09 2000-01-25 Sony Corp Support member and support method for planetary gear
JP2015075139A (en) * 2013-10-07 2015-04-20 Thk株式会社 Gear mechanism

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263748A (en) * 1984-06-13 1985-12-27 Toyoda Gosei Co Ltd Steering wheel
JPS61238567A (en) * 1985-04-15 1986-10-23 Toyoda Gosei Co Ltd Steering wheel
JPS6334343A (en) * 1986-07-28 1988-02-15 Toshiba Corp Differential planetary gear device
JPH03105346U (en) * 1989-11-02 1991-10-31
JPH03223546A (en) * 1990-01-30 1991-10-02 Yashima Eng Kk Speed reducer
JPH051335U (en) * 1991-06-28 1993-01-14 池田物産株式会社 Reclining device
JP2000027954A (en) * 1998-07-09 2000-01-25 Sony Corp Support member and support method for planetary gear
JP2015075139A (en) * 2013-10-07 2015-04-20 Thk株式会社 Gear mechanism

Also Published As

Publication number Publication date
JP6910140B2 (en) 2021-07-28

Similar Documents

Publication Publication Date Title
US9447830B2 (en) Electric brake actuator for vehicles
KR101606863B1 (en) Robotic disc for coupling Precision reducer
JP2010007757A (en) Combination type wave reduction gear
JP2006300068A (en) Camshaft adjusting device for internal combustion engine
JP2017141869A (en) Planetary gear device
JP2014073839A (en) Reversible seat belt tensioner
JP2011038546A (en) Differential device
JP2019100460A (en) Planetary gear reduction mechanism
JPWO2012029756A1 (en) Multistage reducer
CN113383181A (en) Planetary gear without backlash
JP2003278849A (en) Reduction gear and series thereof
KR101007069B1 (en) Gear box having double planetary gear system
US9644728B2 (en) Strain wave device
CN107850188B (en) Planetary roller driving type internal connection type planetary gear speed reducer
JP6910140B2 (en) Reducer, seat adjuster and reclining device with this reducer
JP2018105335A (en) Speed reducer, and sheet adjuster and reclining device having speed reducer
JP2021526621A (en) Fixed ratio traction or friction drive
WO2014119138A1 (en) Transmission
JP2007315581A (en) Reduction gear
KR20160126473A (en) Gear apparatus and including the same
JP5434550B2 (en) Power transmission device
JP2008032142A (en) Driving device
JP6360806B2 (en) Friction type continuously variable transmission
KR101576281B1 (en) Back lash zeroise controling gearing system for circumscription type planet gear device
JP7145492B2 (en) Decelerator

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20191118

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20200928

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20201006

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201204

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210209

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210408

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20210629

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210706

R150 Certificate of patent or registration of utility model

Ref document number: 6910140

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150