JPS6347166Y2 - - Google Patents
Info
- Publication number
- JPS6347166Y2 JPS6347166Y2 JP1983180998U JP18099883U JPS6347166Y2 JP S6347166 Y2 JPS6347166 Y2 JP S6347166Y2 JP 1983180998 U JP1983180998 U JP 1983180998U JP 18099883 U JP18099883 U JP 18099883U JP S6347166 Y2 JPS6347166 Y2 JP S6347166Y2
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- motor
- output gear
- wiper
- engagement
- 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
Links
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、例えば自動車のヘツドライト用ワ
イパを駆動するモータのような往復運動機構を内
蔵したワイパモータの改良に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to an improvement of a wiper motor having a built-in reciprocating mechanism, such as a motor that drives a wiper for a headlight of an automobile.
（従来技術）
従来の往復運動機構内蔵型ワイパモータにおい
て、内蔵された往復運動機構の構造としては、例
えば第１図に示すようなものがあつた。(Prior Art) In a conventional wiper motor with a built-in reciprocating mechanism, the built-in reciprocating mechanism has a structure as shown in FIG. 1, for example.
すなわち、図中の１は、図示しないモータから
複数個の歯車で構成された減速機構を経て回転力
を受ける出力歯車であり、２は、図示しないワイ
パの揺動中心軸３の端部に揺動可能に設けられた
アーム、４は、前記出力歯車１とアーム２とを連
結し、前記出力歯車１の回転に伴つてアーム２を
揺動させるコンロツドである。 That is, 1 in the figure is an output gear that receives rotational force from a motor (not shown) through a speed reduction mechanism composed of a plurality of gears, and 2 is an output gear that is oscillated at the end of the oscillation center shaft 3 of the wiper (not shown). A movably provided arm 4 is a connecting rod that connects the output gear 1 and the arm 2 and swings the arm 2 as the output gear 1 rotates.
さらに、前記出力歯車１およびアーム２と、コ
ンロツド４との連結構造としては、アーム２側を
第２図に示すように、前記アーム２の先端に、円
柱状で上端寄りに径小部５ａを有するピン５を突
出して設け、前記ピン５に、コンロツド４の端部
に形成した係合穴４ａを回動自在に係合したの
ち、前記ピン５の周囲に突出しうるＵ字形の抜け
止め用ストツパ６を前記径小部５ａに嵌め込み、
さらに、第３図に示すように、前記ストツパ６の
両端部を前記ストツパ６が環状となるように折曲
することによつてコンロツド４が抜けるのを防止
し、前記コンロツド４とアーム２とを連結してい
た。 Furthermore, as a connection structure between the output gear 1 and the arm 2 and the connecting rod 4, as shown in FIG. A pin 5 is provided protrudingly provided, and after the engagement hole 4a formed at the end of the connecting rod 4 is rotatably engaged with the pin 5, a U-shaped retaining stopper that can protrude around the pin 5 is provided. 6 into the small diameter portion 5a,
Further, as shown in FIG. 3, by bending both ends of the stopper 6 so that the stopper 6 becomes annular, the connecting rod 4 is prevented from coming off, and the connecting rod 4 and the arm 2 are connected. It was connected.
また、出力歯車１の側面にも前記ピン５と同一
形状のピン７が設けてあり、抜け止め用ストツパ
６によつてコンロツド４の他端部を同様に連結さ
せている。 Further, a pin 7 having the same shape as the pin 5 is provided on the side surface of the output gear 1, and the other end of the connecting rod 4 is similarly connected by a stopper 6 for preventing the pin from coming off.
しかしながら、上記したような従来の連結構造
にあつては、抜け止め用ストツパ６を出力歯車１
側と、アーム２側とに夫々設ける構造であつたた
め、部品点数が多くなるうえに、前記ストツパ６
の組付け作業がめんどうであり、工数を増大させ
ていた。また、コンロツド４の両端部は、出力歯
車１およびアーム２と、各ストツパ６との間で
夫々のピン７，５に対して回動自在な状態に取り
付けられているため、各構成部品の寸法誤差によ
つてはがたつきを生じるなどの問題点があつた。 However, in the conventional connection structure as described above, the stopper 6 is attached to the output gear 1.
Since the structure was such that the stoppers 6 and 6 were provided separately, the number of parts increased, and the stopper 6
The assembly work was troublesome and increased the number of man-hours. In addition, since both ends of the conrod 4 are rotatably attached to the output gear 1, the arm 2, and each stopper 6 with respect to the respective pins 7 and 5, the dimensions of each component can be adjusted. There were problems such as rattling due to errors.
（考案の目的）
この考案は、上記したような従来の問題点に着
目してなされたもので、夫々の連結部分に設けて
いた抜け止め用のストツパを廃止し、弾性力を利
用したストツパをコンロツドに圧接して設けるこ
とにより、組付け作業を容易にすると共に、各構
成部品の寸法誤差によるがたつき等を防ぐ機能を
備えた往復運動機構内蔵型のワイパモータを提供
することを目的としている。(Purpose of the invention) This invention was made by focusing on the conventional problems mentioned above, and instead of eliminating the stoppers that were provided at each connecting part to prevent them from coming off, a stopper that utilizes elastic force was used. The purpose of the present invention is to provide a wiper motor with a built-in reciprocating mechanism that facilitates assembly work by being installed in pressure contact with the cooking rod and prevents rattling due to dimensional errors in each component. .
（考案の構成）
この考案による往復運動機構内蔵型ワイパモー
タの構成は、モータの回転運動をワイパの揺動運
動に変換する往復運動機構を内蔵したワイパモー
タにおいて、前記往復運動機構を構成するコンロ
ツドの各端部を前記モータによつて回転する出力
歯車の側面部と、ワイパの揺動中心軸と一体で揺
動するアームの先端部とに同一方向から回動自在
に係合し、前記コンロツドの係合方向と反対側面
に、夫々の係合部分からほぼ均等な位置に両端部
を支持させた弾性ストツパを設けると共に、前記
弾性ストツパの中央部を前記コンロツドの係合方
向に押圧して成ることを特徴としている。(Structure of the invention) The structure of the wiper motor with a built-in reciprocating mechanism according to this invention is that, in a wiper motor having a built-in reciprocating mechanism that converts the rotational motion of the motor into the oscillating motion of the wiper, each of the connecting rods constituting the reciprocating mechanism is The end portion is rotatably engaged in the same direction with the side surface of the output gear rotated by the motor and the tip of the arm that swings integrally with the swing center axis of the wiper, and is engaged with the connecting rod. An elastic stopper having both ends supported at substantially equal positions from each engaging portion is provided on the side opposite to the mating direction, and the center portion of the elastic stopper is pressed in the engaging direction of the connecting rod. It is a feature.
（実施例） 以下、この考案を図面に基づいて説明する。(Example) This invention will be explained below based on the drawings.
第４図〜第８図は、この考案の一実施例を説明
する図である。 FIGS. 4 to 8 are diagrams illustrating an embodiment of this invention.
すなわち、ワイパモータ１０は、第４図および
第５図に示すように、ハウジング１１の内部に駆
動用モータ１２を設置し、図示しないモータ軸に
形成したウオームと、枢着ピン１３によつて前記
ハウジング１１内に枢着したウオームホイール１
４とを係合させると共に、前記ウオームホイール
１４と一体で回転するピニオン１５と、軸１６に
よつて前記ハウジング１１内に回動自在に設けた
出力歯車１７とを係合させることによつて減速機
構を構成している。 That is, as shown in FIGS. 4 and 5, the wiper motor 10 has a drive motor 12 installed inside a housing 11, and is connected to the housing by a worm formed on a motor shaft (not shown) and a pivot pin 13. Worm wheel 1 pivoted within 11
4 and engages a pinion 15 that rotates integrally with the worm wheel 14 and an output gear 17 rotatably provided in the housing 11 by a shaft 16, thereby reducing the speed. It constitutes a mechanism.
また、前記出力歯車１７の側面に、第６図およ
び第７図にも示すように、コンロツド１８を連結
するためのプレート１９が固定してあると共に、
前記出力歯車１７から離間したところに揺動中心
軸２０と一体で揺動するアーム２１が設けてあ
る。 Further, as shown in FIGS. 6 and 7, a plate 19 for connecting the connecting rod 18 is fixed to the side surface of the output gear 17.
An arm 21 that swings integrally with the swing center shaft 20 is provided at a location spaced apart from the output gear 17.
なお、前記揺動中心軸２０は、ハウジング１１
を貫通した状態で回動自在に設けてあつて、先端
に図示しないワイパを取り付けるようになつてい
る。 Note that the swing center shaft 20 is connected to the housing 11.
It is rotatably provided in a state where it passes through, and a wiper (not shown) is attached to the tip.
そして、第５図中における符号２４は、出力歯
車１７によつて回転し、ワイパスイツチを無作為
に切つた場合でもワイパを定位置で停止させるた
めのオートストツプ板であり、２５は前記オート
ストツプ板２４に付随する配線基板であるが作用
等の詳細な説明は省略する。 Reference numeral 24 in FIG. 5 is an auto-stop plate that is rotated by the output gear 17 and stops the wiper at a fixed position even when the wiper switch is turned off at random. Although it is an accompanying wiring board, a detailed explanation of its operation and the like will be omitted.
さらに、前記プレート１９における出力歯車１
７の外周側と前記アーム２１の先端部には、前記
コンロツド１８を連結するための係合穴１９ａ，
２１ａが夫々形成してある。 Furthermore, the output gear 1 on the plate 19
7 and the tip of the arm 21, there are engagement holes 19a for connecting the connecting rod 18,
21a are formed respectively.
前記コンロツド１８は、回転運動を揺動運動に
変換する往復運動機構を構成し、出力歯車１７の
回転力をアーム２１に伝達するものであつて、両
端部には、同一方向に突出し且つ前記係合穴１９
ａ，２１ａに対応する係合突部１８ａ，１８ｂが
形成してある。 The connecting rod 18 constitutes a reciprocating mechanism that converts rotational motion into a swinging motion, and transmits the rotational force of the output gear 17 to the arm 21. The connecting rod 18 has two ends that protrude in the same direction and have the above-mentioned engagement mechanism. Matching hole 19
Engagement protrusions 18a and 18b corresponding to a and 21a are formed.
そして、前記コンロツド１８は、各々の係合突
部１８ａ，１８ｂを夫々の係合穴１９ａ，２１ａ
に回動自在に係合することによつて出力歯車１７
とアーム２１とを連結しており、係合方向の反対
側面、つまり前記係合突部１８ａ，１８ｂを突出
させた側の反対面に弾性ストツパ２２を設けてい
る。 Then, the connecting rod 18 connects the respective engaging protrusions 18a and 18b to the respective engaging holes 19a and 21a.
By rotatably engaging the output gear 17
and an arm 21, and an elastic stopper 22 is provided on the opposite side in the engagement direction, that is, on the opposite side to the side from which the engagement protrusions 18a, 18b project.
前記弾性ストツパ２２は、弾性を有する合成樹
脂等の材質によつて成形されており、両端に前記
コンロツド１８の両側に突出する係止部２２ａ，
２２ａを有すると共に、中央部下面に形成した突
起部２２ｂをコンロツド１８の中央部に形成した
ガイド孔１８ｃに挿通することにより取付位置が
規制されている。 The elastic stopper 22 is made of an elastic material such as synthetic resin, and has locking portions 22a at both ends that protrude to both sides of the connecting rod 18.
22a, and the mounting position is regulated by inserting a protrusion 22b formed on the lower surface of the center into a guide hole 18c formed in the center of the connecting rod 18.
さらに、前記弾性ストツパ２２の両端部には、
主体部分を前記コンロツド１８から離間させるた
めの支持部２２ｃ，２２ｃが形成してあり、この
支持部２２ｃ，２２ｃは、前記弾性ストツパ２２
をコンロツド１８のほぼ中央に位置規制したため
先述した出力歯車１７およびアーム２１の各係合
部分からほぼ均等な距離に位置している。 Furthermore, at both ends of the elastic stopper 22,
Support portions 22c, 22c are formed to separate the main body portion from the connecting rod 18, and these support portions 22c, 22c are connected to the elastic stopper 22.
Since it is positioned approximately at the center of the connecting rod 18, it is located at approximately equal distances from the engaging portions of the output gear 17 and the arm 21 mentioned above.
また、前記弾性ストツパ２２の上面中央部に
は、半球状の突部２２ｅが形成してあり、ハウジ
ング１１にカバー２３を取り付けた際、前記カバ
ー２３の裏面が前記突部２２ｅを押圧し、前記弾
性ストツパ２２の中央部をコンロツド１８側に撓
ませた状態（第７図の状態）にしている。 Further, a hemispherical protrusion 22e is formed at the center of the upper surface of the elastic stopper 22, and when the cover 23 is attached to the housing 11, the back surface of the cover 23 presses the protrusion 22e, causing the The center portion of the elastic stopper 22 is bent toward the connecting rod 18 (the state shown in FIG. 7).
したがつて、コンロツド１８は、前記弾性スト
ツパ２２によつて係合方向（第７図中矢印Ａ方
向）に常に付勢されており、押圧されている突部
２２ｅの位置に発生する反力Ｆは、各々の係合部
分から均等な位置にある支持部２２ｃ，２２ｃを
作用点として前記コンロツド１８の両端をほぼ均
等な力で押え付けている。 Therefore, the connecting rod 18 is always urged in the engagement direction (direction of arrow A in FIG. 7) by the elastic stopper 22, and the reaction force F generated at the position of the pressed protrusion 22e The two ends of the connecting rod 18 are pressed down with substantially equal force using the support portions 22c, 22c located at equal positions from the respective engaging portions as points of action.
さらに、出力歯車１７が一回転する毎にアーム
２１はコンロツド１８を介して一往復し、前記コ
ンロツド１８の動きと共に弾性ストツパ２２も移
動するが、カバー２３の裏面に当接する突部２２
ｅを半球状としたため、当接したままの状態で円
滑に摺動することができ、往復運動機構の作動に
支障はない。 Further, each time the output gear 17 rotates, the arm 21 reciprocates once through the connecting rod 18, and the elastic stopper 22 also moves with the movement of the connecting rod 18.
Since e has a hemispherical shape, it can slide smoothly while in contact with each other, and there is no problem with the operation of the reciprocating mechanism.
なお、上記実施例にあつては、例えば第８図ａ
に出力歯車１７側を示すように、出力歯車１７に
固定したプレート１９に係合穴１９ａを形成する
と共に、コンロツド１８に前記係合穴１９ａと係
合する係合突起１８ａを設けた構成としたが、第
８図ｂに示すように、前記プレート１９に係合突
部１９ｂを形成すると共に、前記コンロツド１８
に前記係合突部１９ｂと係合する係合穴１８ｄを
形成した構成としても良い。 In addition, in the above embodiment, for example, FIG.
As shown in FIG. 2, the plate 19 fixed to the output gear 17 has an engagement hole 19a, and the connecting rod 18 is provided with an engagement protrusion 18a that engages with the engagement hole 19a. However, as shown in FIG. 8b, an engaging protrusion 19b is formed on the plate 19, and the connecting rod 18
It is also possible to form an engagement hole 18d that engages with the engagement protrusion 19b.
ただし、この場合、出力歯車１７の軸１６を支
承している位置から係合突部１９ｂと係合穴１８
ｄの係合部分までの長さl2（第８図ｂ参照）が、
上記実施例における軸１６の支承位置から係合部
分までの長さl1（第８図ａ参照）よりも長くなる
ため、出力歯車１７を回転させた際に、係合部分
や軸１６への負荷が大きくなる。したがつて、前
記軸１６の支承部分からプレート１９とコンロツ
ド１８との係合部分までの長さは短い方が良く、
上記実施例で説明した構成（第８図ａ）とするこ
とが望ましい。 However, in this case, the engagement protrusion 19b and the engagement hole 18
The length l 2 (see Figure 8b) to the engaging part of d is
Since it is longer than the length l 1 from the supporting position of the shaft 16 to the engaging portion in the above embodiment (see Fig. 8a), when the output gear 17 is rotated, The load increases. Therefore, the shorter the length from the supporting part of the shaft 16 to the engaging part of the plate 19 and connecting rod 18, the better;
It is desirable to use the configuration described in the above embodiment (FIG. 8a).
（発明の効果）
以上説明してきたように、この考案の往復運動
機構内蔵型ワイパモータによれば、モータの回転
運動をワイパの揺動運動に変換する往復運動機構
を内蔵したワイパモータにおいて、前記往復運動
機構を構成するコンロツドの各端部を前記モータ
によつて回転する出力歯車の側面部と、ワイパの
揺動中心軸と一体で揺動するアームの先端部とに
同一方向から回動自在に係合し、前記コンロツド
の係合方向と反対側面に、夫々の係合部分からほ
ぼ均等な位置に両端部を支持させた弾性ストツパ
を設けると共に、前記弾性ストツパの中央部を前
記コンロツドの係合方向に押圧して成ることを特
徴とする構成にしたため、従来の抜け止め用スト
ツパを用いたコンロツドに比べて組付け作業が極
めて容易なものとなり、作業性の向上、部品点数
の削減、コストの低下などを実現できると共に、
弾性ストツパの撓みの反力でコンロツドを常に係
合方向に付勢しているので各部品の寸法誤差によ
るがたつきを生じることがないなどの効果を有す
る。(Effects of the Invention) As described above, according to the wiper motor with a built-in reciprocating motion mechanism of this invention, in the wiper motor having a built-in reciprocating motion mechanism that converts the rotational motion of the motor into the swinging motion of the wiper, the reciprocating motion Each end of the connecting rod constituting the mechanism is rotatably connected in the same direction to the side surface of the output gear rotated by the motor and to the tip of the arm that swings integrally with the swing center axis of the wiper. At the same time, an elastic stopper having both ends supported at substantially equal positions from each engaging portion is provided on the side opposite to the direction of engagement of the connecting rod, and a center portion of the elastic stopper is provided in the direction opposite to the direction of engagement of the connecting rod. Because the structure is characterized by being pressed down, the assembly work is extremely easy compared to conventional connecting rods that use stoppers to prevent them from coming off, improving work efficiency, reducing the number of parts, and lowering costs. In addition to being able to realize such things as
Since the connecting rod is always urged in the engagement direction by the reaction force of the elastic stopper's deflection, there is an effect that no rattling due to dimensional errors of each component occurs.
第１図は従来の往復運動機構内蔵型ワイパモー
タにおけるコンロツドの連結構造を説明する斜視
図、第２図および第３図はコンロツドとアームの
組付要領を説明する分解斜視図および組付後の斜
視図、第４図および第５図はこの考案の往復運動
機構内蔵型ワイパモータの一実施例を説明するワ
イパモータの断面図およびカバーを外した状態の
平面図、第６図はコンロツドおよびストツパの組
付状態を説明する部分拡大斜視図、第７図はカバ
ーを取り付けたときの弾性ストツパの状態を説明
する側部断面図、第８図ａ，ｂはコンロツドに設
けた係合突部とプレートに設けた係合穴との係合
関係を逆にした場合を示す各々説明図である。
１０……ワイパモータ，１２……駆動用モー
タ、１７……出力歯車、１８……コンロツド、１
８ａ，１８ｂ……係合突部、１９……プレート、
１９ａ……係合穴、２０……揺動中心軸、２１…
…アーム、２１ａ……係合穴、２２……弾性スト
ツパ、２２ｃ……支持部。
Figure 1 is a perspective view illustrating the connection structure of the connecting rod in a conventional wiper motor with a built-in reciprocating mechanism, and Figures 2 and 3 are exploded perspective views illustrating how to assemble the connecting rod and arm, and a perspective view after assembly. Figures 4 and 5 are a sectional view and a plan view of the wiper motor with the cover removed, illustrating an embodiment of the wiper motor with a built-in reciprocating mechanism of this invention, and Figure 6 shows the assembly of the stove and stopper. Fig. 7 is a side sectional view illustrating the state of the elastic stopper when the cover is attached, and Fig. 8 a and b show the engagement protrusion provided on the connecting rod and the plate provided. FIG. 6 is an explanatory diagram showing a case where the engagement relationship with the engagement hole is reversed. 10...Wiper motor, 12...Drive motor, 17...Output gear, 18...Conrod, 1
8a, 18b...Engaging protrusion, 19...Plate,
19a... Engagement hole, 20... Swing center shaft, 21...
...Arm, 21a...Engagement hole, 22...Elastic stopper, 22c...Support part.
Claims (1)
る往復運動機構を内蔵したワイパモータにおい
て、前記往復運動機構を構成するコンロツドの各
端部を前記モータによつて回転する出力歯車の側
面部と、ワイパの揺動中心軸と一体で揺動するア
ームの先端部とに同一方向から回動自在に係合
し、前記コンロツドの係合方向と反対側面に、
夫々の係合部分からほぼ均等な位置に両端部を支
持させた弾性ストツパを設けると共に、前記弾性
ストツパの中央部を前記コンロツドの係合方向に
押圧して成ることを特徴とする往復運動機構内蔵
型ワイパモータ。 In a wiper motor that has a built-in reciprocating mechanism that converts the rotary motion of the motor into a swinging motion of the wiper, each end of a connecting rod constituting the reciprocating mechanism is connected to a side surface of an output gear rotated by the motor, and a side surface of the output gear rotated by the motor. rotatably engages from the same direction with the tip of the arm that swings integrally with the swinging center axis of the connecting rod, and on the side opposite to the engaging direction of the connecting rod,
A built-in reciprocating mechanism characterized in that an elastic stopper is provided with both ends supported at substantially equal positions from each engagement part, and the center part of the elastic stopper is pressed in the engagement direction of the conrod. type wiper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983180998U JPS6087855U (en) | 1983-11-25 | 1983-11-25 | Wiper motor with built-in reciprocating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983180998U JPS6087855U (en) | 1983-11-25 | 1983-11-25 | Wiper motor with built-in reciprocating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6087855U JPS6087855U (en) | 1985-06-17 |
| JPS6347166Y2 true JPS6347166Y2 (en) | 1988-12-06 |
Family
ID=30392314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983180998U Granted JPS6087855U (en) | 1983-11-25 | 1983-11-25 | Wiper motor with built-in reciprocating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6087855U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810046Y2 (en) * | 1988-06-03 | 1996-03-27 | 株式会社三ツ葉電機製作所 | Backlash removing structure of link mechanism in wiper device |
-
1983
- 1983-11-25 JP JP1983180998U patent/JPS6087855U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6087855U (en) | 1985-06-17 |
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