JPS6073982A - Buffer apparatus of gear reducer - Google Patents
Buffer apparatus of gear reducerInfo
- Publication number
- JPS6073982A JPS6073982A JP58181593A JP18159383A JPS6073982A JP S6073982 A JPS6073982 A JP S6073982A JP 58181593 A JP58181593 A JP 58181593A JP 18159383 A JP18159383 A JP 18159383A JP S6073982 A JPS6073982 A JP S6073982A
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- gear
- helical gear
- edge
- peripheral edge
- 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
Links
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
- Window Of Vehicle (AREA)
- Gears, Cams (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔本発明の分野〕
本発明は、自動車用窓開閉電動機等に用いる緩衝装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a shock absorbing device for use in an automobile window opening/closing motor or the like.
ドア内取付けのモータにおいては、ドア厚み方向のモー
タ幅はより薄くする傾向にあり、モータをより薄くする
には、モータ部を偏平化し、減速部においては、衝撃吸
収部をギヤ内に組み込まなければならない構造となる。For motors installed inside doors, the width of the motor in the direction of the door thickness tends to be thinner.To make the motor thinner, the motor section must be flattened, and the reduction section must incorporate a shock absorbing section into the gear. This creates an indispensable structure.
このためギヤは強度部材にもかかわらず、必要以上に減
肉状態となり、衝撃荷重を受けた際、撓みやすくなり強
度低下をきたし、最悪字にはギヤが折損し製品性能に重
大な支障をきたす結果をもたらしてしまう。As a result, even though the gear is a strong member, it becomes thinner than necessary, and when subjected to an impact load, it becomes susceptible to bending and strength decreases, and in the worst case scenario, the gear breaks, causing a serious problem in product performance. It brings about results.
本発明は上記に鑑み、ギヤ内に衝撃吸収部を組み込むこ
とによりギヤ肉厚を薄くしてもギヤの折損等が発生しに
くい減速機の緩衝装置にすることを目的とする。In view of the above, an object of the present invention is to provide a shock absorbing device for a speed reducer in which breakage of the gear is less likely to occur even if the thickness of the gear is reduced by incorporating a shock absorbing portion into the gear.
緩衝装置であるクツシロン構造部品１のギヤヘリカル３
と結合する側の金属プレート２の縁２ａはテーパ形状に
て絞りこまれている。ギヤヘリカル３のテーパ形状３ａ
は２ａと相似形状にて、製品状態では互いに接触してい
る。本構成によれば、出力軸４が外力等により急激に拘
束されると、回転子軸５と噛み合うギヤヘリカル３は半
径方向と円周方向に各々力を受け、特に半径方向の力に
より、ウオーム歯６との噛み合いが浅くなり強度低下し
ようとするが、縁２ａにより半径方向のギヤの逃げは防
止され強度低下はしない。このため、製品性能に重大な
影響を与えるような不具合は生じない。なお、ギヤヘリ
カル撓み防止形状部をテーパーとしたが、ストレートに
絞っても得られる効果に、差は生じない。第１図は小型
電動機の部分断面図、第２図は第１図の■−■断面図、
第３図は緩衝装置用クツシロン部品の断面図と正面図、
第４図はへりカルギヤの断面図と正面図を示す。Gear helical 3 of Kutsushiron structural component 1, which is a shock absorber
The edge 2a of the metal plate 2 on the side to be combined with the metal plate 2 is tapered. Tapered shape 3a of gear helical 3
have a similar shape to 2a, and are in contact with each other in the product state. According to this configuration, when the output shaft 4 is suddenly restrained by an external force or the like, the gear helical 3 that meshes with the rotor shaft 5 receives forces in both the radial direction and the circumferential direction. 6 becomes shallow and the strength tends to decrease, but the edge 2a prevents the gear from escaping in the radial direction and the strength does not decrease. Therefore, no defects that seriously affect product performance occur. Note that although the gear helical deflection preventing portion is tapered, there is no difference in the effect obtained even if the gear helical deflection preventing portion is tapered straight. Figure 1 is a partial cross-sectional view of a small electric motor, Figure 2 is a cross-sectional view taken along ■-■ of Figure 1,
Figure 3 is a cross-sectional view and a front view of the shock absorber parts.
FIG. 4 shows a sectional view and a front view of the helical gear.
緩衝装置であるクツシロン構造部品１は金属プレート２
および７と、該金属プレート２および７に加硫接着され
ている弾性部材１ａより構成されており、へりカルギヤ
（ウオームホイール）３と嵌め合わせる側の金属プレー
ト２の縁２ａはテーパ形状にて絞りこまれている。ギヤ
３のテーパ形状３ａは縁２ａと相似形状で、製品完成時
は、互いに結合している。金属プレート２の２ｂはギヤ
３との廻り止め用突起である。４は出力軸、５は回転子
軸を示す。ギヤ３は偏平化の必要性により強度部材にも
かかわらず薄肉形状を成す。作動について説明すると、
出力軸４が外力により急激に拘束されると、回転子軸５
と噛み合うへりカルギヤ３は、このギヤ３の半径方向お
よび円周方向に各々過大な力を受ける。これにより、ギ
ヤ３は撓み、ウオーム歯６との噛み合いが浅くなりギヤ
強度が著しく低下するに到るが、金属縁２ａにより前記
力を受け、ギヤ３の撓みは阻止されギヤ３の逃げはなく
なり、強度低下はしない。つまり、このように、縁２ａ
が設けられない場合、ギヤ破損等、製品性能に重大な支
障をきたす事態が生じ得る。なお、ギヤ３の形状におい
て、薄肉形状でなければ、ギヤ３のギヤ部の逃げは僅少
になり重大な不具合は生じない。８は突起２ｂと係合す
る穴、９はコンデンサ、１０はサーキットブレーカ、１
１はギヤ３の歯部を示す。出力軸４は金属プレート７と
結合されており、廻り止め形状１２により一体にて回転
する。縁２ａのテーパ形状は、クツシロン構造部品１の
弾性部材の成形工程の際、その型寿命上有利とするもの
である。The cushioning structure component 1, which is a shock absorber, has a metal plate 2.
and 7, and an elastic member 1a that is vulcanized and bonded to the metal plates 2 and 7, and the edge 2a of the metal plate 2 on the side that fits into the helical gear (worm wheel) 3 is tapered and constricted. It's crowded. The tapered shape 3a of the gear 3 has a similar shape to the edge 2a, and when the product is completed, they are connected to each other. 2b of the metal plate 2 is a projection for preventing rotation with the gear 3. 4 indicates an output shaft, and 5 indicates a rotor shaft. Due to the necessity of flattening, the gear 3 has a thin shape despite being a strong member. To explain the operation,
When the output shaft 4 is suddenly restrained by an external force, the rotor shaft 5
The helical gear 3 that meshes with the gear 3 receives excessive forces in both the radial direction and the circumferential direction of the gear 3. As a result, the gear 3 is deflected and the meshing with the worm teeth 6 becomes shallow, resulting in a significant decrease in gear strength.However, the metal edge 2a receives the force, preventing the gear 3 from deflecting and preventing the gear 3 from escaping. , there is no decrease in strength. In other words, like this, edge 2a
If this is not provided, situations such as gear damage may occur that seriously impede product performance. Note that if the shape of the gear 3 is not thin, the escape of the gear portion of the gear 3 will be minimal and no serious problems will occur. 8 is a hole that engages with the protrusion 2b, 9 is a capacitor, 10 is a circuit breaker, 1
1 indicates the teeth of the gear 3. The output shaft 4 is connected to the metal plate 7, and rotates together with the rotation stopper 12. The tapered shape of the edge 2a is advantageous in terms of mold life during the process of molding the elastic member of the shoelace structural component 1.
上記例ではギヤの撓み防止のための金属プレート２の形
状をテーパとしたが、ストレートでもその得られる効果
に差はない。In the above example, the shape of the metal plate 2 is tapered to prevent the gear from bending, but the same effect can be obtained even if the metal plate 2 is straight.
以上述べたように本発明緩衝装置においては、薄肉化せ
ざるをえないギヤ強度の低下を防止するため、緩衝部品
の片側を形成する金属プレートを折曲し絞りこむ形状と
することにより、ギヤの半径方向の撓みを、前記プレー
トにより阻止し、ギヤの強度低下という不具合を解消し
得るという効果がある。As described above, in the shock absorber of the present invention, in order to prevent a decrease in the strength of the gear that would otherwise require thinning, the metal plate forming one side of the shock absorber is bent and narrowed. The plate prevents the gear from being bent in the radial direction, thereby solving the problem of a decrease in the strength of the gear.
第１図は本発明の一実施例となる小型電動機部の一部断
面図、第２図は第１図の矢視■−■一部断面図３図（Ａ
）、（Ｂ）は前記一実施例に用いたクッション部品の断
面図と右側面図、第４図（Ａ）、（Ｂ）は前記一実施例
に用いたへりカルギヤの断面図および右側面図である。
２．７・・・金属プレー）、ｌａ・・・弾性部材、１・
・・クツシロン構造部品、３・・・へりカルギヤ、２ａ
・・・金属プレート２の縁、２ｂ・・・金属プレートの
廻り止め用突起、４・・・出力軸、５・・・回転子軸、
６・・・ウオーム歯。
代理人弁理士 岡 部 隆Fig. 1 is a partial sectional view of a small electric motor section according to an embodiment of the present invention, and Fig. 2 is a partial sectional view taken along the arrow ■-■ in Fig.
), (B) are a sectional view and right side view of the cushion component used in the above embodiment, and FIGS. 4(A) and (B) are a sectional view and right side view of the helical gear used in the above embodiment. It is. 2.7...metal play), la...elastic member, 1.
... Kutsushiron structural parts, 3... Helical gear, 2a
...Edge of metal plate 2, 2b...Protrusion for preventing rotation of metal plate, 4...Output shaft, 5...Rotor shaft,
6...worm teeth. Representative Patent Attorney Takashi Okabe
Claims (1)
ム歯（６）、 該ウオーム歯（６）に噛みあうへりカルギヤ（３）、 該ヘリカルギヤ（３）に係合し、該ヘリカルギヤの凹部
）内に収納された第１の金属プレート（２）、 該第１の金属プレート（２）の反ヘリカルギヤ側端面に
固着された弾性部材（１ａ）、該弾性部材（１ａ）の及
第１の金属プレート側に固着された前記第１の金属プレ
ートと略平行におかれた第２の金属プレート（７）、 該第２の金属プレート（７）と結合されて一体回転する
出力軸（４）とを備えたものにおいて、前記第１の金属
プレート（２）の外周側の縁（２ａ）は該第１の金属プ
レート２から折曲されて構成されており、該縁（２ａ）
が前記ヘリカルギヤ（３）の凹部の内周縁（３ａ）を支
持するように密接されていることを特徴とする減速機の
緩衝装置。[Claims] A worm tooth (6) formed at the tip of a rotor shaft (5) constituting an input shaft, a helical gear (3) meshing with the worm tooth (6), and a helical gear (3) related to the helical gear (3). a first metal plate (2) housed in a concave portion of the helical gear; an elastic member (1a) fixed to an end surface of the first metal plate (2) on the side opposite to the helical gear; 1a); a second metal plate (7) placed substantially parallel to the first metal plate fixed to the first metal plate side; and a second metal plate (7) that is combined with and integral with the second metal plate (7). In the device equipped with a rotating output shaft (4), the outer peripheral edge (2a) of the first metal plate (2) is bent from the first metal plate 2, and the outer peripheral edge (2a) of the first metal plate (2) is bent. Edge (2a)
A shock absorber for a speed reducer, characterized in that the helical gear (3) is closely spaced to support the inner peripheral edge (3a) of the recessed portion of the helical gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58181593A JPH0613816B2 (en) | 1983-09-28 | 1983-09-28 | Reducer shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58181593A JPH0613816B2 (en) | 1983-09-28 | 1983-09-28 | Reducer shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073982A true JPS6073982A (en) | 1985-04-26 |
| JPH0613816B2 JPH0613816B2 (en) | 1994-02-23 |
Family
ID=16103518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58181593A Expired - Lifetime JPH0613816B2 (en) | 1983-09-28 | 1983-09-28 | Reducer shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613816B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267482A (en) * | 1991-06-21 | 1993-12-07 | Mitsuba Electric Manufacturing Co., Ltd. | Speed reducing device for electrical equipment |
| US5873786A (en) * | 1996-05-17 | 1999-02-23 | Mitsuba Corporation | Speed reducer with shock absorbing mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864780U (en) * | 1981-10-27 | 1983-05-02 | アスモ株式会社 | Torque buffer device |
-
1983
- 1983-09-28 JP JP58181593A patent/JPH0613816B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864780U (en) * | 1981-10-27 | 1983-05-02 | アスモ株式会社 | Torque buffer device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267482A (en) * | 1991-06-21 | 1993-12-07 | Mitsuba Electric Manufacturing Co., Ltd. | Speed reducing device for electrical equipment |
| US5873786A (en) * | 1996-05-17 | 1999-02-23 | Mitsuba Corporation | Speed reducer with shock absorbing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0613816B2 (en) | 1994-02-23 |
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