JPH0642130Y2 - Resin transmission wheel - Google Patents
Resin transmission wheelInfo
- Publication number
- JPH0642130Y2 JPH0642130Y2 JP1794388U JP1794388U JPH0642130Y2 JP H0642130 Y2 JPH0642130 Y2 JP H0642130Y2 JP 1794388 U JP1794388 U JP 1794388U JP 1794388 U JP1794388 U JP 1794388U JP H0642130 Y2 JPH0642130 Y2 JP H0642130Y2
- Authority
- JP
- Japan
- Prior art keywords
- diameter portion
- inner diameter
- outer diameter
- transmission wheel
- deformation
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、樹脂製伝動輪に係り、詳しくは、内径部と外
径部との間に肉盗みの空間および補強用のリブを設けた
樹脂製伝動輪の軸孔側の構造に関する。[Detailed Description of the Invention] <Industrial field of application> The present invention relates to a resin transmission wheel, and more specifically, a meat robbing space and a reinforcing rib are provided between an inner diameter portion and an outer diameter portion. The present invention relates to a structure on the shaft hole side of a resin transmission wheel.
〈従来の技術〉 従来の樹脂製の伝動輪には、第３図に示すようなものが
ある。<Prior Art> A conventional resin transmission wheel is shown in FIG.
該伝動輪は、全体の軸方向の幅が比較的に広く、その軸
芯側の嵌合孔10に一方向クラッチや針状コロ軸受等の金
属部材20が圧入により嵌着され、該部材20を介して軸に
取り付けられるものである。Said transmission wheel is, the width of the entire axial relatively wide, the metal member 2 0 such as the one-way clutch and a needle roller bearing is fitted by press-fitting into the fitting hole 1 0 of the axis side, the those attached to the shaft through the member 2 0.
このような伝動輪では、一方向クラッチ等の金属部材20
が内部に圧入嵌着される内径部30と、外周にギア歯等の
伝動部分40を有する外径部50との間にかなりの厚みがあ
るので、内外両径部30，50間に肉盗みとして環状の空間
60を同軸に形成して、各部の肉厚をほぼ均一の薄さと
し、これによって、成形後の収縮による歪み変形が生じ
ないようにしている。In such a driving wheel, the metal member 2 0 such as the one-way clutch
The inner diameter portion 3 0 but which is pressure inserted and fitted to the inside, there is a considerable thickness between the outer diameter part 5 0 having a transmission part 4 0 of the gear teeth or the like on the outer periphery, the inner and outer diameter 3 0, 5 An annular space as a meat steal between 0
To form a 6 0 coaxially thin Satoshi substantially uniform thickness of each part, whereby distortion deformation is prevented caused by contraction after molding.
また、この空間60内には複数本の補強用リブ70，…を放
射状に設けて、外径部50の強度が低下しないようにして
いる。Moreover, the space 6 reinforcement ribs 7 0 a plurality of the inside 0, provided ... radially, the strength of the outer diameter portion 5 0 is prevented from lowering.
〈考案が解決しようとする問題点〉 ところで、上記の伝動輪において、内径部30の、嵌合孔
10に一方向クラッチ等の金属部材20を圧入した場合、こ
の金属部材20と内径部30との間のシメシロに対応した分
だけ内径部30が拡大変形し、この変形がリブ70を通じて
外径部50に伝わり、これによって、外径部50がリブ70を
設けた角度位置で変形して外径部50全体の形状が角形に
歪み、伝動部分40の真円度が低下する、という問題が生
じる。<Problems invention is to solve> Meanwhile, in the transmission wheel of the above, the inner diameter portion 3 0, the fitting hole
If you press-fitting the metal member 2 0 such as the one-way clutch 1 0, expanding deformation amount corresponding bore 3 0 corresponding to Interference between the metal member 2 0 and the inner diameter portion 3 0, the deformation rib transmitted to the outer diameter portion 5 0 through 7 0, thereby, distortion outer diameter 5 0 overall shape is prismatic outer diameter 5 0 is deformed in an angular position in which a rib 7 0, the transmitting portions 4 0 The problem arises that the roundness decreases.
本考案は、上述の問題点に鑑みてなされたものであっ
て、内径部と外径部との間に肉盗みの空間および補強用
のリブを設けた樹脂製伝動輪において、内径部の内部に
一方向クラッチ等の金属部材を圧入により装着した場合
の外径部の歪み変形を可及的減少させることを目的とす
る。The present invention has been made in view of the above-mentioned problems, and in a resin transmission wheel having a space for stealing meat and ribs for reinforcement between an inner diameter portion and an outer diameter portion, the inside of the inner diameter portion is It is an object of the present invention to reduce the strain deformation of the outer diameter portion as much as possible when a metal member such as a one-way clutch is mounted by press fitting.
〈問題点を解決するための手段〉 本考案は、上記の目的を達成するために、内部に一方向
クラッチ等の金属部材が圧入嵌着される内径部とその外
径部との間に環状の空間を同軸に形成し、この空間内に
複数本の補強用リブを放射状に設けた樹脂製伝動輪にお
いて、前記内径部の内周にリブの付け根部に沿う溝を形
成した。<Means for Solving the Problems> In order to achieve the above object, the present invention provides an annular structure between an inner diameter portion into which a metal member such as a one-way clutch is press-fitted and an outer diameter portion thereof. In the resin transmission wheel in which the space is formed coaxially and a plurality of reinforcing ribs are radially provided in the space, a groove is formed on the inner periphery of the inner diameter portion along the root of the rib.
〈作用〉 上記の構成によれば、内径部の内部に一方向クラッチ等
の金属部材を圧入した場合、内径部は拡大変形するが、
この変形が外径部側に伝達される経路の途中にあるリブ
の付け根個所で、内径部が薄肉となっており、この薄肉
部分が弾性変形するので、この弾性変形で内径部の変形
が吸収される。そのため、内径部の変形は、ほとんど外
径部に伝わらなくなり、外径部の歪み変形が抑制され
る。<Operation> According to the above configuration, when a metal member such as a one-way clutch is press-fitted inside the inner diameter portion, the inner diameter portion is expanded and deformed,
The inner diameter is thin at the root of the rib in the middle of the path through which this deformation is transmitted to the outer diameter, and this thin portion elastically deforms, so this elastic deformation absorbs the deformation of the inner diameter. To be done. Therefore, the deformation of the inner diameter portion is hardly transmitted to the outer diameter portion, and the strain deformation of the outer diameter portion is suppressed.
〈実施例〉 以下、本考案を図面に示す実施例に基づいて詳細に説明
する。<Embodiment> Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.
第１図は本考案の一実施例に係る樹脂製伝動輪の半断面
図、第２図はその正面図である。FIG. 1 is a half sectional view of a resin transmission wheel according to an embodiment of the present invention, and FIG. 2 is a front view thereof.
この実施例の伝動輪は、内径部１と外径部２とが同一の
軸方向幅に形成されたものである。In the transmission wheel of this embodiment, the inner diameter portion 1 and the outer diameter portion 2 are formed to have the same axial width.
内径部１は、その軸孔側に嵌合孔３を有し、この嵌合孔
３内に片側開放の一方向クラッチ４が圧入により装着さ
れる。嵌合孔３の奥部には、一方向クラッチ４のコロや
保持器の抜け出しを防ぐ抜け止め片５が一体に形成され
ている。The inner diameter portion 1 has a fitting hole 3 on the axial hole side, and a one-way open one-way clutch 4 is fitted into the fitting hole 3 by press fitting. At the inner part of the fitting hole 3, a retaining piece 5 for preventing the roller of the one-way clutch 4 and the retainer from coming off is integrally formed.
外径部２は、その外周にギア歯（ここではヘリカルギア
の歯）６を有する。The outer diameter portion 2 has gear teeth (here, helical gear teeth) 6 on its outer circumference.
内径部１と外径部２との間には、肉盗みのために、環状
の空間７が内外両径部1,2と同軸に形成されている。こ
の空間７は内外両径部1,2の軸方向一端に開口してい
る。内外両径部1,2の軸方向他端は、連結部８により一
体に連成されている。そして、この空間７内には、内外
両径部1,2を径方向に結合するリブ９が放射状に複数本
（実施例では６本）が設けられている。各リブ９は、軸
方向に沿って前記空間７の全幅にわたって形成されてい
る。Between the inner diameter portion 1 and the outer diameter portion 2, an annular space 7 is formed coaxially with the inner and outer diameter portions 1, 2 for the purpose of stealing meat. This space 7 is open at one axial end of both the inner and outer diameter portions 1, 2. The other axial ends of the inner and outer diameter portions 1 and 2 are integrally connected by a connecting portion 8. In the space 7, a plurality of ribs 9 (six in the embodiment) are radially provided to connect the inner and outer diameter portions 1 and 2 in the radial direction. Each rib 9 is formed over the entire width of the space 7 along the axial direction.
嵌合孔３の内面部には、複数本の溝10,…が形成されて
いる。各溝10はリブ９の付け根部に沿って形成されてい
る。すなわち、溝10は、リブ９と同数のものがリブ９と
同一の角度位置にあって、空間７の開口端から軸方向内
方に向かって形成されている。A plurality of grooves 10, ... Are formed on the inner surface of the fitting hole 3. Each groove 10 is formed along the base of the rib 9. That is, the grooves 10 are formed in the same number as the ribs 9 at the same angular position as the ribs 9 and are formed inward from the opening end of the space 7 in the axial direction.
この実施例では、リブ９および溝10の角度位置は、嵌合
孔３に装着される一方向クラッチ４に対応して、その外
周の突条4aの角度位置と同一に設定されており、したが
って、溝10は一方向クラッチ４の突条4aと係合してその
回り止めの役目を果たすようになっている。In this embodiment, the angular positions of the ribs 9 and the grooves 10 are set to be the same as the angular positions of the protrusions 4a on the outer periphery of the one-way clutch 4 mounted in the fitting hole 3, The groove 10 engages with the protrusion 4a of the one-way clutch 4 and serves as a detent.
上記の構成において、内径部１は、溝10の個所で薄肉と
なっており、この薄肉部分を介してリブ９につながって
いる。In the above structure, the inner diameter portion 1 is thin at the location of the groove 10 and is connected to the rib 9 through this thin portion.
ここで、嵌合孔３に片側開放の一方向クラッチ４を開放
側を内側にして圧入により装着すると、内径部１は拡大
変形する。Here, when the one-way clutch 4 with one side open is attached to the fitting hole 3 by press fitting with the open side inside, the inner diameter portion 1 is expanded and deformed.
この内径部１の変形は、リブ９の付け根部を介して外径
部２に伝達されることになるが、この伝達経路の途中に
は、前記の薄肉部分が介在しており、この薄肉部分が内
径部１の変形に対応して弾性変形する。この弾性変形に
より内径部１の変形が吸収される。そのため、内径部１
の変形は、ほとんど外径部２に伝わらなくなり、外径部
の歪み変形が抑制されることになる。The deformation of the inner diameter portion 1 is transmitted to the outer diameter portion 2 via the root portion of the rib 9. The thin portion is interposed in the middle of the transmission path. Elastically deforms in accordance with the deformation of the inner diameter portion 1. This elastic deformation absorbs the deformation of the inner diameter portion 1. Therefore, the inner diameter part 1
Almost no deformation is transmitted to the outer diameter portion 2, and the strain deformation of the outer diameter portion is suppressed.
また、上記実施例のように、リブ９および溝10の角度位
置を、一方向クラッチ４の突条4aの角度位置と同一に設
定しておくと、各突条4aがそれぞれ溝10に嵌まり込むの
で、一方向クラッチ４と内径部１との回転方向の結合が
強力となるばかりか、内径部１の拡大変形量が減少し、
それだけ外径部２の歪み変形が抑制される。When the angular positions of the rib 9 and the groove 10 are set to be the same as the angular position of the ridge 4a of the one-way clutch 4 as in the above embodiment, each ridge 4a fits into the groove 10. Since the connection between the one-way clutch 4 and the inner diameter portion 1 in the rotational direction is strong, the amount of expansion deformation of the inner diameter portion 1 is reduced.
The strain deformation of the outer diameter portion 2 is suppressed to that extent.
なお、内径部１の嵌合孔３に装着する部材は、一方向ク
ラッチ４に限らず、針状コロ軸受等の軸受状部材であっ
てもよいし、また、軸体であってもよい。The member mounted in the fitting hole 3 of the inner diameter portion 1 is not limited to the one-way clutch 4, and may be a bearing-shaped member such as a needle roller bearing or a shaft body.
また、外径部２の外周には、ギア歯に限らず、プーリ、
スプロケットホイール等の伝動輪の伝動部分を構成する
ものが形成されていればよく、また、この伝動部分は外
径部２の軸方向に全幅に限らず、幅の一部に形成されて
いてもよい。Further, not only the gear teeth but also the pulley,
It suffices that a component such as a sprocket wheel that constitutes a power transmission portion of the power transmission wheel is formed, and the power transmission portion is not limited to the entire width in the axial direction of the outer diameter portion 2, but may be formed in a part of the width. Good.
〈考案の効果〉 以上のように、本考案によれば、内径部の内部に一方向
クラッチ等の金属部材を圧入した場合、内径部に生じる
変形が、リブの付け根個所にある薄肉部分の弾性変形に
より吸収されて、ほとんど外径部に伝わらなくなるの
で、外径部の歪み変形が抑制され、真円度の高い伝動輪
が得られる。<Effects of the Invention> As described above, according to the present invention, when a metal member such as a one-way clutch is press-fitted inside the inner diameter portion, the deformation generated in the inner diameter portion causes the elasticity of the thin portion at the root of the rib. Since it is absorbed by the deformation and hardly transmitted to the outer diameter portion, strain deformation of the outer diameter portion is suppressed, and a transmission wheel with high roundness can be obtained.
第１図および第２図は本考案の一実施例に係り、第１図
は半断面図、第２図は正面図である。 第３図は従来例の斜視図である。 １……内径部、２……外径部、４……一方向クラッチ
（圧入する金属部材）、７……環状の空間、９……リ
ブ、10……溝。1 and 2 relate to an embodiment of the present invention. FIG. 1 is a half sectional view and FIG. 2 is a front view. FIG. 3 is a perspective view of a conventional example. 1 ... Inner diameter part, 2 ... Outer diameter part, 4 ... One-way clutch (press-fit metal member), 7 ... Annular space, 9 ... Rib, 10 ... Groove.
Claims (1)
嵌着される内径部とその外径部との間に環状の空間を同
軸に形成し、この空間内に複数本の補強用リブを放射状
に設けた樹脂製伝動輪において、 前記内径部の内周にリブの付け根部に沿う溝を形成した
ことを特徴とする樹脂製伝動輪。1. An annular space is coaxially formed between an inner diameter portion into which a metal member such as a one-way clutch is press-fitted and an outer diameter portion, and a plurality of reinforcing ribs are provided in the space. A resin transmission wheel provided radially with a groove formed along the root of the rib on the inner circumference of the inner diameter portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1794388U JPH0642130Y2 (en) | 1988-02-12 | 1988-02-12 | Resin transmission wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1794388U JPH0642130Y2 (en) | 1988-02-12 | 1988-02-12 | Resin transmission wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01121728U JPH01121728U (en) | 1989-08-17 |
| JPH0642130Y2 true JPH0642130Y2 (en) | 1994-11-02 |
Family
ID=31232154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1794388U Expired - Lifetime JPH0642130Y2 (en) | 1988-02-12 | 1988-02-12 | Resin transmission wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642130Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102259019B1 (en) * | 2019-11-14 | 2021-05-31 | 주식회사 카펙발레오 | One-way clutch, torque converter comprising the same and method for manufacturing torque converter |
-
1988
- 1988-02-12 JP JP1794388U patent/JPH0642130Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01121728U (en) | 1989-08-17 |
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