JPH08128516A - Low noise gear mechanism - Google Patents
Low noise gear mechanismInfo
- Publication number
- JPH08128516A JPH08128516A JP26486094A JP26486094A JPH08128516A JP H08128516 A JPH08128516 A JP H08128516A JP 26486094 A JP26486094 A JP 26486094A JP 26486094 A JP26486094 A JP 26486094A JP H08128516 A JPH08128516 A JP H08128516A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- tooth
- gear mechanism
- cylindrical portion
- low
- 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.)
- Pending
Links
Landscapes
- Gear Transmission (AREA)
- Gears, Cams (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、歯車伝達機構における
低騒音歯車機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low noise gear mechanism in a gear transmission mechanism.
【０００２】[0002]
【従来の技術】従来の歯車伝達機構における低騒音歯車
機構は、図４に示すように、相対する歯車の取付間隔を
各々の歯車のピッチ円が接する寸法で高精度に位置決め
している。また、主歯車の同軸上に隣接して副歯車を設
け、副歯車を主歯車の非噛み合い方向に弾性ゴムにより
所定量変位させ係合させ構成した低騒音歯車機構もあ
る。尚、この種の機構として関連するものに、例えば特
開昭５５−６０６４号公報等が挙げられる。2. Description of the Related Art As shown in FIG. 4, a low noise gear mechanism in a conventional gear transmission mechanism positions the mounting intervals of the facing gears with high precision at a size where the pitch circles of the respective gears are in contact with each other. There is also a low-noise gear mechanism in which a sub gear is provided coaxially adjacent to the main gear, and the sub gear is displaced by a predetermined amount in the non-meshing direction of the main gear by elastic rubber and engaged. As a mechanism related to this type, for example, JP-A-55-6064 can be cited.
【０００３】[0003]
【発明が解決しようとする課題】上記の従来技術では、
取付間隔のバラツキで相対する歯車が近付き過ぎたり離
れ過ぎたりして歯と歯の擦れや当たりによる異音が発生
し易く、また異音を防止するためには歯車の取付間隔を
高精度に位置出しする必要が有り品質管理に問題があっ
た。また、副歯車を設けた低騒音歯車機構は構造が複雑
なため、小型化が困難であり高価になる問題があった。SUMMARY OF THE INVENTION In the above prior art,
Due to variations in mounting intervals, gears that face each other are too close or too far apart, and noise is likely to occur due to rubbing between teeth and contact.To prevent noise, position the gears with high precision. There was a problem in quality control because it had to be put out. In addition, the low-noise gear mechanism provided with the auxiliary gear has a complicated structure, which makes it difficult to reduce the size and increases the cost.
【０００４】そこで本発明では、簡単な構成で信頼性の
高い安価な低騒音歯車機構を提供することにある。Therefore, the present invention is to provide an inexpensive low noise gear mechanism having a simple structure and high reliability.
【０００５】[0005]
【課題を解決するための手段】上記の課題は、下記に示
す手段を用いることで達成される。The above objects can be achieved by using the means shown below.
【０００６】歯車の同軸上に歯車の歯と隣接して歯車の
ピッチ円と同じ寸法の直径の円筒部を設けて、歯車の歯
と歯および円筒部と円筒部が各々相対させて配置し構成
する。A cylindrical portion having the same size as the pitch circle of the gear is provided coaxially with the gear adjacent to the tooth of the gear, and the tooth and the tooth of the gear and the cylindrical portion and the cylindrical portion are arranged to face each other. To do.
【０００７】また、歯と円筒部の間に、歯車の谷径以下
の直径の溝部を設けたり、歯車のピッチ円径より外側部
分の形状が無い半歯部分を設ける。Further, between the tooth and the cylindrical portion, a groove portion having a diameter equal to or smaller than the root diameter of the gear is provided, or a half tooth portion having no shape outside the pitch circle diameter of the gear is provided.
【０００８】また、相対する歯車の円筒部と円筒部を押
し付けるように取付けることで、歯車の取付間隔を各々
の歯車のピッチ円が接する寸法で高精度に位置決めす
る。Further, by mounting the cylindrical parts of the facing gears so as to press the cylindrical parts against each other, the mounting intervals of the gears can be positioned with high accuracy by the dimension where the pitch circles of the respective gears are in contact with each other.
【０００９】[0009]
【作用】上記のように相対する歯車は円筒部が接触する
ことで、歯車と歯車が接近し過ぎることが無いため、歯
と歯の擦れや当たりによる異音の発生は微小にできる。
また、歯車の円筒部と円筒部を押し付けるように取付る
ことで、歯車と歯車が離れ過ぎることが無く適正な間隔
を確保できるため、歯と歯の擦れによる異音の発生は微
小にできる。また、接触する各々の円筒部の直径は歯車
のピッチ円と同じ寸法にすることで、各々の円筒部の外
周速度は同方向で同速度になるため、擦れや摩擦抵抗が
無い。また、歯と円筒部の間に、歯車の谷径以下の直径
の溝部を設けたり、歯車のピッチ円径より外側部分の形
状が無い半歯部分を設けることで、軸方向の歯車の位置
ずれによる歯車の歯と円筒部の干渉が防止できる。As described above, since the cylindrical portions of the opposing gears are in contact with each other so that the gears and the gears do not come too close to each other, it is possible to minimize the generation of abnormal noise due to rubbing or hitting between the teeth.
In addition, by mounting the cylindrical portions of the gears so that they are pressed against each other, the gears and the gears are not too far apart from each other, and a proper distance can be secured, so that abnormal noise due to rubbing between the teeth can be minimized. Further, by making the diameter of each of the contacting cylindrical parts the same as the pitch circle of the gear, the outer peripheral speed of each cylindrical part becomes the same speed in the same direction, so there is no rubbing or frictional resistance. Also, by providing a groove between the teeth and the cylindrical part with a diameter not larger than the root diameter of the gear, or by providing a semi-toothed part that has no shape outside the pitch circle diameter of the gear, the misalignment of the gear in the axial direction It is possible to prevent interference between the tooth of the gear and the cylindrical portion due to.
【００１０】以上により、簡単な構成で信頼性の高い安
価な低騒音歯車機構を提供できる。As described above, it is possible to provide an inexpensive low noise gear mechanism having a simple structure and high reliability.
【００１１】[0011]
【実施例】本発明に係る低騒音歯車機構の実施例を図面
を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a low noise gear mechanism according to the present invention will be described with reference to the drawings.
【００１２】図１に、本発明に係る低騒音歯車機構の一
実施例を示す。図２に、歯車の歯と円筒部の間に歯車の
谷径以下の直径の溝部を設けた低騒音歯車機構の一実施
例を示す。図３に、歯車の歯と円筒部の間に歯車のピッ
チ円径より外側部分の形状が無い半歯部分を設けた低騒
音歯車機構の一実施例を示す。FIG. 1 shows an embodiment of a low noise gear mechanism according to the present invention. FIG. 2 shows an embodiment of a low noise gear mechanism in which a groove having a diameter equal to or smaller than the root diameter of the gear is provided between the tooth of the gear and the cylindrical portion. FIG. 3 shows an embodiment of a low-noise gear mechanism in which a half-toothed portion having no shape outside the pitch circle diameter of the gear is provided between the gear tooth and the cylindrical portion.
【００１３】低騒音歯車は、歯車の歯１とその歯車と同
軸上に歯車のピッチ円と同じ寸法の直径の円筒部２とそ
れらを固定する軸３で構成し、各々の歯車の歯１ａと歯
１ｂおよび円筒部２ａと円筒部２ｂを相対させて配置し
構成する。歯１と円筒部２は金型を使用して各々一体成
形し、高精度に形成する。The low noise gear comprises a tooth 1 of the gear, a cylindrical portion 2 coaxial with the tooth and having a diameter of the same size as the pitch circle of the gear, and a shaft 3 for fixing them, and each tooth 1a of the gear. The teeth 1b and the cylindrical portion 2a and the cylindrical portion 2b are arranged to face each other. The teeth 1 and the cylindrical portion 2 are integrally molded using a mold and are formed with high precision.
【００１４】また、歯１と円筒部２の間に、歯車の谷径
以下の直径の溝部４を設けたり、歯車のピッチ円径より
外側部分の形状が無い半歯部分５を設けて、軸３の方向
の歯１ａ、１ｂの位置ずれ７による歯１と円筒部２の干
渉を防止する。Further, between the tooth 1 and the cylindrical portion 2, a groove portion 4 having a diameter equal to or smaller than the root diameter of the gear is provided, or a half-tooth portion 5 having no shape outside the pitch circle diameter of the gear is provided. The interference between the tooth 1 and the cylindrical portion 2 due to the positional deviation 7 of the teeth 1a and 1b in the direction 3 is prevented.
【００１５】また、軸３のたわみやバネなどを利用して
押し付け方向６へ円筒部２ａと円筒部２ｂが押し付けら
れるように構成して、各々の歯車のピッチ円が接するよ
うな適正な間隔に各々の歯車を配置できる。Further, the cylindrical portion 2a and the cylindrical portion 2b are configured to be pressed in the pressing direction 6 by utilizing the flexure of the shaft 3 and the spring, etc., so that the pitch circles of the respective gears contact each other at appropriate intervals. Each gear can be arranged.
【００１６】[0016]
【発明の効果】本発明によれば、簡単な構成で高精度に
適正な間隔に各々の歯車を配置できるため、歯１ａ、１
ｂの擦れや当たりによる異音が微小で信頼性の高い安価
な低騒音歯車機構を提供できる効果がある。According to the present invention, since the respective gears can be arranged with high precision and at appropriate intervals with a simple structure, the teeth 1a, 1
There is an effect that it is possible to provide an inexpensive low-noise gear mechanism which is highly reliable and has a small abnormal noise due to rubbing or hitting of b.
【図１】本発明に係る低騒音歯車機構の一実施例の正面
図と平面図である。FIG. 1 is a front view and a plan view of an embodiment of a low noise gear mechanism according to the present invention.
【図２】歯車の歯と円筒部の間に歯車の谷径以下の直径
の溝部を設けた低騒音歯車機構の一実施例の正面図と平
面図である。2A and 2B are a front view and a plan view of an embodiment of a low noise gear mechanism in which a groove having a diameter equal to or smaller than a root diameter of a gear is provided between a tooth of a gear and a cylindrical portion.
【図３】歯車の歯と円筒部の間に歯車のピッチ円径より
外側部分の形状が無い半歯部分を設けた低騒音歯車機構
の一実施例の正面図と平面図である。3A and 3B are a front view and a plan view of an embodiment of a low noise gear mechanism in which a half-tooth portion having no shape outside the pitch circle diameter of the gear is provided between the gear tooth and the cylindrical portion.
【図４】従来の技術例の正面図と平面図である。FIG. 4 is a front view and a plan view of a conventional technology example.
１…歯、 １ａ…歯、 １ｂ…歯、 ２…円筒部、 ２ａ…円筒部、 ２ｂ…円筒部、 ３…軸、 ４…溝部、 ５…半歯部分、 ６…押し付け方向、 ７…位置ずれ。 1 ... Tooth, 1a ... Tooth, 1b ... Tooth, 2 ... Cylindrical part, 2a ... Cylindrical part, 2b ... Cylindrical part, 3 ... Shaft, 4 ... Groove part, 5 ... Half tooth part, 6 ... Pressing direction, 7 ... Positional deviation .
Claims (4)
歯車の歯と隣接して歯車のピッチ円と同じ寸法の直径の
円筒部を設けて、歯車の歯と歯および円筒部と円筒部が
各々相対させて配置することを特徴とする低騒音歯車機
構。1. In a transmission mechanism for a gear, a cylindrical portion having the same diameter as a pitch circle of the gear is provided coaxially with the gear adjacent to the tooth of the gear, and the tooth and the tooth of the gear and the cylindrical portion and the cylindrical portion are provided. A low-noise gear mechanism characterized in that they are arranged to face each other.
歯と円筒部の間に、歯車の谷径以下の直径の溝部を設け
たことを特徴とする低騒音歯車機構。2. The low noise gear mechanism according to claim 1,
A low-noise gear mechanism characterized in that a groove having a diameter equal to or smaller than the root diameter of the gear is provided between the tooth and the cylindrical portion.
歯と円筒部の間に、歯車のピッチ円径以上の形状が無い
半歯部分を設けたことを特徴とする低騒音歯車機構。3. The low-noise gear mechanism according to claim 1,
A low-noise gear mechanism characterized in that a half-tooth portion having no shape greater than the pitch circle diameter of the gear is provided between the tooth and the cylindrical portion.
相対する歯車の円筒部と円筒部を押し付けるように取付
たことを特徴とする低騒音歯車機構。4. The low noise gear mechanism according to claim 1,
A low-noise gear mechanism, characterized in that it is mounted so as to press the cylindrical parts of the facing gears against each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26486094A JPH08128516A (en) | 1994-10-28 | 1994-10-28 | Low noise gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26486094A JPH08128516A (en) | 1994-10-28 | 1994-10-28 | Low noise gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08128516A true JPH08128516A (en) | 1996-05-21 |
Family
ID=17409231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26486094A Pending JPH08128516A (en) | 1994-10-28 | 1994-10-28 | Low noise gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08128516A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046906A (en) * | 2004-06-30 | 2006-02-16 | Nippon Seiki Co Ltd | Pointer instrument |
| DE102006058868A1 (en) * | 2006-12-07 | 2008-07-03 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Rattle-free component pairing |
| JP2011232207A (en) * | 2010-04-28 | 2011-11-17 | Yazaki Corp | Hand movement mechanism |
-
1994
- 1994-10-28 JP JP26486094A patent/JPH08128516A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046906A (en) * | 2004-06-30 | 2006-02-16 | Nippon Seiki Co Ltd | Pointer instrument |
| DE102006058868A1 (en) * | 2006-12-07 | 2008-07-03 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Rattle-free component pairing |
| DE102006058868B4 (en) * | 2006-12-07 | 2008-10-16 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Rattle-free component pairing |
| JP2011232207A (en) * | 2010-04-28 | 2011-11-17 | Yazaki Corp | Hand movement mechanism |
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