JPS6344594Y2 - - Google Patents
Info
- Publication number
- JPS6344594Y2 JPS6344594Y2 JP1982028475U JP2847582U JPS6344594Y2 JP S6344594 Y2 JPS6344594 Y2 JP S6344594Y2 JP 1982028475 U JP1982028475 U JP 1982028475U JP 2847582 U JP2847582 U JP 2847582U JP S6344594 Y2 JPS6344594 Y2 JP S6344594Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- metal
- resin
- face
- metal gear
- 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
- 239000002184 metal Substances 0.000 claims description 32
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Description
【考案の詳細な説明】
本考案は歯車結合体、特に合成樹脂の歯車と金
属製歯車とを同軸上に一体的に結合した歯車結合
体に関するものである。[Detailed Description of the Invention] The present invention relates to a gear assembly, particularly a gear assembly in which a synthetic resin gear and a metal gear are coaxially integrally joined.
本考案の歯車結合体は、中心孔と一方の端面に
形成した上記中心孔より大径の凹部と該凹部に対
向する部分の外周にこれを取り巻くよう形成した
抜け止め溝とを有する金属製歯車と、中心部に軸
方向に突出して設けた軸受部とこの軸受部の外側
において上記金属製歯車の端面に当接する端面部
分に形成した逃がし溝とを有する合成樹脂製歯車
とより成り、上記金属製歯車の中心孔内に上記樹
脂製歯車の軸受部が嵌合され上記金属製歯車の上
記凹部を有する端面と樹脂製歯車の端面が加熱溶
着されることを特徴とする。 The gear assembly of the present invention is a metal gear having a center hole, a recess formed on one end surface with a larger diameter than the center hole, and a retaining groove formed around the outer periphery of a portion facing the recess. and a synthetic resin gear having a bearing part protruding in the axial direction at the center and a relief groove formed in an end face portion that abuts the end face of the metal gear on the outside of the bearing part, The bearing part of the resin gear is fitted into the center hole of the gear, and the end face of the metal gear having the recess and the end face of the resin gear are heat welded.
以下図面によつて従来及び本考案の実施例を説
明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Conventional embodiments and embodiments of the present invention will be described below with reference to the drawings.
一般に小形電動機に直接結合される減速装置に
使用される歯車列の中で、小トルクの伝動部は騒
音防止と生産性の面から樹脂製の歯車を使用する
が、減速段数が増加し伝達トルクが大きくなつて
樹脂では強度的に不足となる伝達部には一方を樹
脂製の歯車とし、他の一方を金属製歯車として両
者を一体的に結合した構成とする。このようにす
れば歯車列の各段歯車の強度配分を合理的に行う
ことができる。 Generally speaking, resin gears are used for small torque transmission parts in gear trains used in reduction gears that are directly connected to small electric motors, from the standpoint of noise prevention and productivity. For the transmission part which becomes large and resin is insufficient in strength, one gear is made of resin, the other is made of metal, and the two are integrally connected. In this way, the strength of each stage gear of the gear train can be distributed rationally.
このような場合に樹脂製の歯車と金属製歯車と
の結合体を形成するのに従来に於ては第１図ａに
示すように金属製歯車１と樹脂製歯車２とを別個
に形成し、樹脂製歯車２に孔３をあけ、この孔３
の内径d2は金属製歯車１の外径d1より歯だけに相
当する寸法だけ小さくし、樹脂製歯車２と金属製
歯車１とを互にその中心を合せて重ね、金属製歯
車１の遊端より超音波の振動を加えると金属製歯
車１が当接した樹脂製歯車２の端面が溶けるので
第１図ａの矢印の方向に金属製歯車１を圧入する
と第１図ｂのように金属製歯車１と樹脂製歯車２
とを一体的に結合することができる。 In such a case, in order to form a combination of a resin gear and a metal gear, conventionally the metal gear 1 and the resin gear 2 are formed separately as shown in Figure 1a. , a hole 3 is made in the resin gear 2, and this hole 3
The inner diameter d 2 of the metal gear 1 is made smaller than the outer diameter d 1 of the metal gear 1 by a dimension corresponding to only the teeth, and the resin gear 2 and the metal gear 1 are overlapped with their centers aligned, and the metal gear 1 is When ultrasonic vibration is applied from the free end, the end face of the resin gear 2 that the metal gear 1 comes into contact with will melt, so if the metal gear 1 is press-fitted in the direction of the arrow in Figure 1a, the result will be as shown in Figure 1b. Metal gear 1 and resin gear 2
can be integrally combined.
然しながら第１図の従来技術による歯車結合体
では金属製歯車１を歯すじの方向に沿つて樹脂製
歯車に圧入しているので軸方向に抜け止めが無
く、又溶けた樹脂が金属製歯車１の歯面に流出し
て歯面を汚染する等の不都合があり、又金属製歯
車１の中心部に軸受部を設けるには更にその中心
部に孔４を設け、この孔４内に軸受となる部品を
嵌装しなければならなかつた。 However, in the gear assembly according to the prior art shown in FIG. 1, the metal gear 1 is press-fitted into the resin gear along the tooth trace direction, so there is no mechanism to prevent it from coming off in the axial direction, and the melted resin leaks into the metal gear 1. In addition, in order to provide a bearing in the center of the metal gear 1, a hole 4 is further provided in the center of the metal gear 1, and the bearing and the bearing are placed in the hole 4. I had to fit different parts into it.
本考案は上記のような従来技術の欠点を改良す
るため第２図ａに示すように金属製歯車１の外周
にその一方の端面近くに抜け止め溝１１を設け、
その外周一端面に面取り１２を設けると共に孔４
の端面にテーパー状凹部１３を設ける。又樹脂製
歯車２の中心部には軸受部２１を突出して設け、
この軸受部２１の外側部分に於て金属製歯車１の
端面と当接する端面部分に逃がし溝２２を形成
し、又軸受部２１の外径と金属製歯車の孔４の内
径d3とを等しくする。 In order to improve the drawbacks of the prior art as described above, the present invention provides a retaining groove 11 on the outer periphery of the metal gear 1 near one end surface, as shown in FIG. 2a.
A chamfer 12 is provided on one end surface of the outer periphery, and a hole 4
A tapered recess 13 is provided on the end face of the holder. In addition, a bearing portion 21 is provided in the center of the resin gear 2 to protrude.
A relief groove 22 is formed in the outer part of the bearing part 21 at the end surface that comes into contact with the end face of the metal gear 1, and the outer diameter of the bearing part 21 and the inner diameter d 3 of the hole 4 of the metal gear are made equal. do.
本考案の金属製歯車１と樹脂製歯車２との結合
は先づ金属製歯車１の孔４内に樹脂製歯車２の軸
受部２１を嵌装し、金属製歯車１の遊端より軸方
向に超音波を加えながら矢印方向に圧入すると金
属製歯車１が当接した樹脂製歯車２の当接部分が
溶け、これが金属製歯車１の抜け止め溝１１と凹
部１３及び樹脂製歯車２の逃がし溝２２内に流れ
込み金属製歯車１が樹脂製歯車２に一体的に結合
され、第２図ｂに示す結合体が完成する。 To connect the metal gear 1 and the resin gear 2 of the present invention, first, the bearing part 21 of the resin gear 2 is fitted into the hole 4 of the metal gear 1, and the free end of the metal gear 1 is connected in the axial direction. When the resin gear 2 is press-fitted in the direction of the arrow while applying ultrasonic waves, the abutting portion of the resin gear 2 that the metal gear 1 is in contact with will melt, and this will cause the metal gear 1 to come out in the retaining groove 11 and the recess 13, and the resin gear 2 to escape. The metal gear 1 flows into the groove 22 and is integrally connected to the resin gear 2, completing the combined body shown in FIG. 2b.
本考案による歯車結合体は溶けた樹脂が逃がし
溝内に流入するので歯面を汚染することなく、又
抜け止め溝１１にも流入して完全に抜け止めの効
果が生れ、又軸受部２１が金属製歯車１の孔内に
嵌入されて結合されるから軸受部も一体的に形成
できるので別に軸受部を嵌装する必要がなく材料
部品及び工程数を大幅に節約し、しかも結合強度
の高い歯車結合体を構成できる大きな利益があ
る。 In the gear assembly according to the present invention, the melted resin flows into the relief groove, so it does not contaminate the tooth surface, and it also flows into the retaining groove 11, creating a complete retaining effect, and the bearing part 21 is Since it is fitted into the hole of the metal gear 1 and connected, the bearing part can also be formed integrally, so there is no need to separately fit the bearing part, which greatly saves material parts and the number of steps, and has high joint strength. There is a great advantage in being able to form gear combinations.
第１図ａは従来の歯車結合体の分解説明図、第
１図ｂは従来の歯車結合体の断面図、第２図ａは
本考案歯車結合体の分解説明図、第２図ｂは本考
案歯車結合体の断面図である。
１……金属製歯車、２……樹脂製歯車、３，４
……孔、１１……抜け止め溝、１２……面取り、
１３……凹部、２１……軸受部、２２……逃がし
溝。
Figure 1a is an exploded explanatory view of a conventional gear assembly, Figure 1b is a sectional view of a conventional gear assembly, Figure 2a is an exploded explanatory diagram of the gear assembly of the present invention, and Figure 2b is an exploded illustration of the gear assembly of the present invention. FIG. 3 is a cross-sectional view of the invented gear assembly. 1...Metal gear, 2...Resin gear, 3, 4
... hole, 11 ... retaining groove, 12 ... chamfer,
13... recessed part, 21... bearing part, 22... relief groove.
Claims (1)
大径の凹部と該凹部に対向する部分の外周にこれ
を取り巻くよう形成した抜け止め溝とを有する金
属製歯車と、中心部に軸方向に突出して設けた軸
受部とこの軸受部の外側において上記金属製歯車
の端面に当接する端面部分に形成した逃がし溝と
を有する合成樹脂製歯車とより成り、上記金属製
歯車の中心孔内に上記樹脂製歯車の軸受部が嵌合
され上記金属製歯車の上記凹部を有する端面と樹
脂製歯車の端面が加熱溶着されることを特徴とす
る歯車結合体。 A metal gear having a center hole, a recess formed on one end surface with a larger diameter than the center hole, and a retaining groove formed around the outer periphery of a portion facing the recess, It consists of a synthetic resin gear having a protruding bearing part and a relief groove formed in an end face part that abuts the end face of the metal gear on the outside of the bearing part, A gear assembly characterized in that a bearing portion of a resin gear is fitted into the end face of the metal gear having the recess and an end face of the resin gear are heat welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2847582U JPS58132252U (en) | 1982-03-02 | 1982-03-02 | gear combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2847582U JPS58132252U (en) | 1982-03-02 | 1982-03-02 | gear combination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58132252U JPS58132252U (en) | 1983-09-06 |
| JPS6344594Y2 true JPS6344594Y2 (en) | 1988-11-18 |
Family
ID=30040322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2847582U Granted JPS58132252U (en) | 1982-03-02 | 1982-03-02 | gear combination |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58132252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015131444A (en) * | 2014-01-14 | 2015-07-23 | マツダ株式会社 | Method for joining metal member to resin member, and joined member set consisting of the metal member and resin member to be used in the method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104865A (en) * | 1983-11-11 | 1985-06-10 | Chino Works Ltd | Compound gear |
| JP2842812B2 (en) * | 1995-07-17 | 1999-01-06 | 三菱農機株式会社 | Counter gear |
| JP2004308694A (en) * | 2003-04-02 | 2004-11-04 | Asmo Co Ltd | Brake system for vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418553B2 (en) * | 1973-03-20 | 1979-07-09 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418553U (en) * | 1977-07-08 | 1979-02-06 | ||
| JPS5932760Y2 (en) * | 1980-04-19 | 1984-09-13 | 松下電工株式会社 | transmission gear |
-
1982
- 1982-03-02 JP JP2847582U patent/JPS58132252U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418553B2 (en) * | 1973-03-20 | 1979-07-09 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015131444A (en) * | 2014-01-14 | 2015-07-23 | マツダ株式会社 | Method for joining metal member to resin member, and joined member set consisting of the metal member and resin member to be used in the method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58132252U (en) | 1983-09-06 |
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