JP4236932B2 - Mated sector gear - Google Patents

Mated sector gear Download PDF

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JP4236932B2
JP4236932B2 JP2002569538A JP2002569538A JP4236932B2 JP 4236932 B2 JP4236932 B2 JP 4236932B2 JP 2002569538 A JP2002569538 A JP 2002569538A JP 2002569538 A JP2002569538 A JP 2002569538A JP 4236932 B2 JP4236932 B2 JP 4236932B2
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leg
sector gear
sector
gears
pair
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JP2004524484A (en
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ティアン ザン
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マグナ クロージャーズ インコーポレイテッド
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Gear Transmission (AREA)

Description

本発明は、セクター歯車の製造方法及びそれにより作られたセクター歯車に関する。   The present invention relates to a method of manufacturing a sector gear and a sector gear made thereby.

車両の窓調節機は、一般に、窓の開閉に必要とされる力を減ずるために、セクター歯車を用いる。従来技術のセクター歯車は「パイ・スライス（pie slice）」形状である。外側湾曲縁は一連の歯を有し、一方、狭い端は、セクター歯車の回転の中心を定める孔を有する。外周部と回転中心との間の中間部分は、セクター歯車の重量を減ずるために、しばしば取り除かれる。   Vehicle window adjusters typically use sector gears to reduce the force required to open and close the window. Prior art sector gears are "pie slice" shaped. The outer curved edge has a series of teeth, while the narrow end has a hole that centers the rotation of the sector gear. The intermediate part between the outer periphery and the center of rotation is often removed to reduce the weight of the sector gear.

従来技術のセクター歯車は、薄板金から打ち抜かれる。セクター歯車が約４５°の角度をもつならば、複数のセクター歯車を、スクラップを減ずるために、互い違いに打ち抜くことができる。しかしながら、中間部分を、依然として打ち抜いて、捨てなければならず、或いは再利用しなければならない。   Prior art sector gears are stamped from sheet metal. If the sector gear has an angle of about 45 °, a plurality of sector gears can be stamped out alternately to reduce scrap. However, the middle part must still be punched out and discarded or reused.

セクター歯車が４５°より大きい角度をもつならば、セクター歯車を効率的な仕方で配列することはできない。単一のセクター歯車を打ち抜くのに必要とされる薄板金の大きさは、およそ最長寸法の長さに、狭い寸法の長さである。 隅及び中間部分は捨てられ、或いは再利用される。   If the sector gear has an angle greater than 45 °, the sector gear cannot be arranged in an efficient manner. The sheet metal size required to punch a single sector gear is approximately the length of the longest dimension and the length of the narrow dimension. Corners and middle parts are discarded or reused.

従来技術の欠点は、高密度嵌め合いが、スクラップを最小にし、しかも、強度及び性能特性を維持するのを可能にする形態を有するセクター歯車を提供することによって解消される。   The disadvantages of the prior art are overcome by providing a sector gear having a configuration that allows high density fit to minimize scrap while maintaining strength and performance characteristics.

本発明の一側面によれば、互いに点対称の一対のセクター歯車の一つとして形成されたセクター歯車を提供する。セクター歯車の各々は、その外周に一連の歯を有する円弧状部分と、第一の脚、第二の脚及び頂点部分を有するＶ字形ベース部分とを有する。第一の脚はＳ字形の形状を有し、その第一端で頂点部分と連結する。第二の脚は逆Ｓ字形状を有し、円弧状部分の中間部近くで円弧状部分と連結する。第一の脚及び第二の脚は頂点部分と滑らかに合体する。頂点部分は、円弧状部分の半径方向の中心に孔を有する。セクター歯車の各々は、一対のセクター歯車の補足し合う嵌め合いを可能にする内周を有する。 According to one aspect of the present invention, a sector gear formed as one of a pair of sector gears that are point-symmetric with respect to each other is provided. Each sector gear has an arcuate portion having a series of teeth on its outer periphery and a V-shaped base portion having a first leg, a second leg and a vertex portion. The first leg has an S-shape and is connected to the apex portion at the first end. The second leg has an inverted S-shape and is connected to the arc-shaped portion near the middle portion of the arc-shaped portion. The first leg and the second leg smoothly merge with the apex portion. The apex portion has a hole at the center in the radial direction of the arc-shaped portion. Each of the sector gears has an inner circumference that allows a complementary fit of a pair of sector gears.

本発明の別の側面によれば、一対のセクター歯車の嵌め合い度を、ベース部分の第二の脚の湾曲度によって制御することができる。   According to another aspect of the present invention, the degree of fitting of the pair of sector gears can be controlled by the degree of curvature of the second leg of the base portion.

図１を参照すると、本発明の一対の嵌め合せたセクター歯車１２，１４を示す。セクター歯車１２，１４は互いに点対称であり、逆背中合わせ関係に形成される。 Referring to FIG. 1, a pair of mated sector gears 12, 14 of the present invention are shown. The sector gears 12 and 14 are point-symmetric with each other and are formed in a reverse back-to-back relationship.

セクター歯車１２は円弧状部分１６を有する。円弧状部分１６の外周は一連の歯１８を有する。   The sector gear 12 has an arcuate portion 16. The outer periphery of the arcuate portion 16 has a series of teeth 18.

Ｖ形のベース部分２０は円弧状部分１６に一体的に連結される。ベース部分２０は第一の脚２２、第二の脚２４及び頂点２６を有する。第一の脚２２は、好ましくは、円弧状部分１６の端領域から延びるＳ字形の形状を有する。第一の脚２２は、頂点２６と滑らかに合体する。第二の脚は、第一の脚２２のＳ字形の形状に対して逆Ｓ字形の形状を有する。第二の脚２４は、円弧状部分１６の円周上のほぼ中間から延び、頂点２６と滑らかに合体する。   The V-shaped base portion 20 is integrally connected to the arc-shaped portion 16. Base portion 20 has a first leg 22, a second leg 24 and a vertex 26. The first leg 22 preferably has an S-shape extending from the end region of the arcuate portion 16. The first leg 22 smoothly merges with the vertex 26. The second leg has an inverted S-shape with respect to the S-shape of the first leg 22. The second leg 24 extends from substantially the middle of the circumference of the arc-shaped portion 16 and smoothly merges with the vertex 26.

ベース部分２０の内周２８は、図示するように、逆背中合わせ関係で同じ周と嵌め合うように形成される。   As shown in the drawing, the inner periphery 28 of the base portion 20 is formed so as to fit with the same periphery in a reverse back-to-back relationship.

頂点２６は、円弧状部分１６の半径方向の中心に位置する孔３０を有する。半径中心の孔３０から円弧状部分１６の円周上のほぼ中間まで延びる仮想線３２がある。第二の脚２４は、この仮想線３２から離れて円弧状に延びる。好ましい実施形態では、セクター歯車１２，１４の一方の仮想線３２は、互いにほぼ平行に延びる。   The apex 26 has a hole 30 positioned at the radial center of the arcuate portion 16. There is an imaginary line 32 extending from the radial center hole 30 to approximately the middle of the circumference of the arcuate portion 16. The second leg 24 extends away from the virtual line 32 in an arc shape. In a preferred embodiment, one imaginary line 32 of the sector gears 12, 14 extends substantially parallel to each other.

図２を参照すると、本発明の第二実施形態が示されている。嵌め合せた一対のセクター歯車４２，４４は、第二の脚５０が第二の脚２４よりもっと著しい湾曲を有することを除いて、嵌め合せた一対のセクター歯車１２，１４と等しい。湾曲を増大させることによって、より高い嵌め合せ度、従って、より高い材料効率を達成することができる。   Referring to FIG. 2, a second embodiment of the present invention is shown. The mated pair of sector gears 42, 44 is identical to the mated pair of sector gears 12, 14, except that the second leg 50 has a much more pronounced curvature than the second leg 24. By increasing the curvature, a higher degree of fit and thus higher material efficiency can be achieved.

在来のセクター歯車６０と比較すれば、図３に示すように、一対の嵌め合せたセクター歯車を、従来技術のセクター歯車６０によって占められた面積より僅かに大きい材料の薄板の面積から打ち抜くことができる。嵌め合せた一対のセクター歯車は、材料の約３６％の節約と、およそ重量の約３％の減少をもたらす。驚くべきことに、本発明のセクター歯車１２，１４は、在来のセクター歯車６０に匹敵する荷重を支えることができる。   Compared to a conventional sector gear 60, as shown in FIG. 3, a pair of mated sector gears are punched out of a sheet of material slightly larger than the area occupied by the prior art sector gear 60. Can do. The mated pair of sector gears provides a savings of about 36% of material and a reduction of about 3% in weight. Surprisingly, the sector gears 12, 14 of the present invention can support loads comparable to the conventional sector gear 60.

好ましい実施形態では、嵌め合せた一対のセクター歯車は、薄板金、好ましくは、３．２２ｍｍの薄鋼板から打ち抜かれる。しかしながら、当該技術において知られた他の材料を使用してもよい。   In a preferred embodiment, a pair of mated sector gears are stamped from sheet metal, preferably a 3.22 mm sheet steel. However, other materials known in the art may be used.

本発明の上述の実施形態は本発明の例であるべきものであり、添付の特許請求の範囲に記載された本発明の範囲から逸脱することなく、当業者によってその変更を行うことができる。   The above-described embodiments of the present invention should be examples of the present invention, and modifications thereof can be made by those skilled in the art without departing from the scope of the present invention as set forth in the appended claims.

本発明の第一実施形態の一対の嵌め合せたセクター歯車の平面図である。It is a top view of a pair of sector gear which fitted a first embodiment of the present invention. 本発明の第二実施形態の一対の嵌め合せたセクター歯車の平面図である。It is a top view of a pair of sector gear which fitted a second embodiment of the present invention. 従来技術のセクター歯車の平面図である。It is a top view of the sector gear of a prior art.

Claims (5)

互いに点対称の一対の歯車の一つとして形成されたセクター歯車であって、前記歯車の各々は、外周に一連の歯を有する円弧状部分と、頂点部分を有するＶ字形のベース部分と、を有し、前記頂点部分は前記円弧状部分の曲率中心に孔を有し、
前記一対の歯車の一方の歯車の前記ベース部分のＶ字形に凸の外周が、逆背中合わせ関係で他方の歯車の前記ベース部分の外周の一部及び前記円弧状部分の歯の無い側の外周によって構成されたＶ字形に凹の外周と嵌め合うように形成されている、セクター歯車。A sector gear formed as one of a pair of point-symmetrical gears, each of the gears having an arcuate portion having a series of teeth on the outer periphery and a V-shaped base portion having an apex portion. The vertex portion has a hole at the center of curvature of the arc-shaped portion;
The V-shaped convex outer circumference of the base portion of one gear of the pair of gears is a part of the outer circumference of the base portion of the other gear and the outer circumference of the arcuate portion on the toothless side in a reverse back-to-back relationship . A sector gear formed so as to be fitted to a concave outer periphery in a configured V-shape . 前記ベース部分は第一の脚と第二の脚とを有し、前記第一の脚は前記円弧状部分とその第一端領域で連結し、前記第二の脚は前記円弧状部分の中間部近くで前記円弧状部分と連結し、前記第一の脚と第二の脚は互いに連結して前記頂点部分を構成する、請求項１に記載のセクター歯車。  The base portion has a first leg and a second leg, the first leg is connected to the arcuate portion at a first end region thereof, and the second leg is intermediate the arcuate portion. The sector gear according to claim 1, wherein the sector gear is connected to the arcuate portion near a portion, and the first leg and the second leg are connected to each other to form the apex portion. 前記第一の脚はＳ字形の形状を有し、前記第二の脚は逆Ｓ字形を有する、請求項２に記載のセクター歯車。  The sector gear of claim 2, wherein the first leg has an S-shape and the second leg has an inverted S-shape. 前記歯車は、嵌め合せた状態で、単一の薄板材料から打ち抜かれる、請求項３に記載のセクター歯車。  The sector gear according to claim 3, wherein the gear is stamped from a single sheet material in a mated state. 前記薄板材料は鋼である、請求項４に記載のセクター歯車。  The sector gear according to claim 4, wherein the sheet material is steel.
JP2002569538A 2001-03-08 2002-03-06 Mated sector gear Expired - Fee Related JP4236932B2 (en)

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US27389401P 2001-03-08 2001-03-08
PCT/CA2002/000325 WO2002070848A2 (en) 2001-03-08 2002-03-06 Nested sector gears

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US1842520A (en) * 1927-12-27 1932-01-26 Dura Co Manufacture of window regulators
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