JPS5884257A - Gear - Google Patents

Gear

Info

Publication number
JPS5884257A
JPS5884257A JP56182012A JP18201281A JPS5884257A JP S5884257 A JPS5884257 A JP S5884257A JP 56182012 A JP56182012 A JP 56182012A JP 18201281 A JP18201281 A JP 18201281A JP S5884257 A JPS5884257 A JP S5884257A
Authority
JP
Japan
Prior art keywords
gear
plastic
metal
tooth
metal member
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.)
Pending
Application number
JP56182012A
Other languages
Japanese (ja)
Inventor
Kuniyuki Otaka
尾高　邦行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP56182012A priority Critical patent/JPS5884257A/en
Publication of JPS5884257A publication Critical patent/JPS5884257A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash
    • 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
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash
    • F16H2055/185—Special devices for taking up backlash using compound gears with coincident teeth of different material, e.g. laminated construction of metal and elastomeric gear layers, where elastic layer is slightly oversized
    • 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
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings

Landscapes

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

Abstract

PURPOSE:To enable both the reduction of noise and the lengthening of lifetime, by making each tooth surface of a plastic member and a metal member. CONSTITUTION:A gear body 2, which is provided with a shaft hole 1 in which a rotary shaft is to be fitted, is made of metal such as carbon steel. A recess 3 of T-shaped cross section is provided on the central part of the peripheral surface of the gear body 2. Plastic such as polyacetal resin is filled in the recess 3. When the peripheral surface of the gear body 2 is hobbed, the plastic part is elastically deformed more than the metal part. As a result, the plastic part is protruded slightly from the metal part although the tooth surfaces of both the parts are hobbed flush with each other.

Description

【発明の詳細な説明】 本発明は、例えば自動扉などの駆動機構の変速装置に用
いる歯車に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gear used in a transmission of a drive mechanism such as an automatic door.

一般に、歯車は負荷が大きい機構に用いる場合にはその
強度を強くするために金属で形成され、また比較的軽負
荷の機構に用いる場合は製作のし易すさ及び騒音などを
考慮してプラスチックで形成されているが、前者の歯車
は歯当りによる騒音が大きく、人の出入りが多い店舗の
入口などに取付ける自動扉に使用するには不向きであり
、また後者の歯車は摩耗に弱く、歯が欠けるなど寿命の
点で問題があった。In general, gears are made of metal to increase their strength when used in mechanisms with large loads, and are made of plastic when used in mechanisms with relatively light loads, considering ease of manufacture and noise. However, the former gear makes a lot of noise due to the contact of the teeth, making it unsuitable for use in automatic doors installed at store entrances where many people come and go, and the latter gear is susceptible to wear and the teeth are There were problems with longevity, such as chipping.

本発明は上記問題点に鑑みて成したもので、その目的と
するところは、騒音が少なく且つ長寿命の歯車を提供す
ることにある。The present invention was made in view of the above problems, and its purpose is to provide a gear with less noise and a long life.

以下本発明の実施例を図面に基づき説明する。Embodiments of the present invention will be described below based on the drawings.

第１１図乃至第８図は第１実施例を示し、回転軸を挿着
する軸孔ｌを形成した歯車基体２を炭素鋼などの金属部
材で形成するとともにその外周の軸方向中央部に略丁字
形の凹溝８を形成し、前記凹溝８にポリアセタール樹脂
、などのプラスチック部材を充填し、その外周面をホブ
切りして歯形を形成するのである。ホブ切りする際には
プラスチック部材が金属部材からなる歯車基体２よりも
加工時にたわみ易く、従って両部材の歯面を面一に加工
しても、加工後の歯面は第８図に示す如くプラスチック
部材が若干突出するようになるのである。11 to 8 show a first embodiment, in which a gear base body 2 in which a shaft hole l into which a rotating shaft is inserted is formed of a metal member such as carbon steel, and a gear base body 2 is formed of a metal member such as carbon steel. A T-shaped groove 8 is formed, the groove 8 is filled with a plastic material such as polyacetal resin, and the outer peripheral surface of the groove 8 is hobbed to form a tooth shape. When hobbing, the plastic member is more easily bent during machining than the gear base 2 made of a metal member, so even if the tooth surfaces of both parts are machined flush, the tooth surfaces after machining will be as shown in Figure 8. This causes the plastic member to protrude slightly.

而して、一対の歯車をかみ合わせる場合には上記実施例
の歯車のプラスチック部材に対向させて相手側の歯車を
かみ合わせるようにすればプラスチック部材が当接する
ので歯当り音が減少するのであり、また上記実施例の歯
車同志をかみ合わすようにしても、プラスチック部材が
若干突出して形成されるので、プラスチック部材同志が
先に当接し歯当り音が減少するのである。また歯面の中
央部のプラスチック部材の両側を強度的に強い金属部材
で形成しているので、歯先の欠けがなくなり、より長寿
命となるのである。Therefore, when a pair of gears are to be meshed, if the plastic member of the gear in the above embodiment is opposed to the other gear, the plastic member will come into contact with the other gear, thereby reducing tooth contact noise. Furthermore, even if the gears of the above embodiment are made to mesh with each other, since the plastic members are formed to protrude slightly, the plastic members contact each other first, reducing tooth contact noise. Furthermore, since both sides of the plastic member at the center of the tooth surface are made of strong metal members, chipping of the tooth tips is eliminated, resulting in a longer life.

第４図及び第５図は第２の実施例を示し、プラスチック
部材からなる円板状歯車基体４の両側に金属部材からな
る一対の円板状歯車基体５，５を配し、前記プラスチッ
ク製の歯車基体４の側面に一体形成した突起６を前記金
属製の歯車基体５の孔７に挿入し、突起７の先端を熱鉄
めすることにより固定し、その外周部に歯形を形成して
いる。4 and 5 show a second embodiment, in which a pair of disc-shaped gear bases 5, 5 made of metal members are arranged on both sides of a disc-shaped gear base 4 made of plastic members, and A protrusion 6 integrally formed on the side surface of the gear base 4 is inserted into the hole 7 of the metal gear base 5, the tip of the protrusion 7 is fixed by hot iron plating, and a tooth profile is formed on the outer periphery of the protrusion 6. There is.

第６図及び第７図は本発明を使用した自動扉を示すもの
であり、以下その構造を説明する。８は無目であって、
アルミニウムの押出し成形等により断面路７学形に形成
し、下部前縁を戸車９．９が走行するレール部１０とし
ている。前記無目８内の両端部には原動プーリ１１と従
動プーリ１２を配設し、両プーリ１１．１２間に環状ベ
ルト１８を張設している。扉１４は戸車９，９を取付け
た一対のハンガ−１５，１５によりレール部１０に吊設
され、一方のハンガー１５を前記環状ベルト１８に連結
し環状ベルト１８の移動により扉１４がレール部１０を
自在に走行するようにしている。前記原動プーリ１１は
減速装置１６を介してモータ１７により駆動されるよう
になっており、減速装置１６はモータ１７にＶベルト１
８を介して連結した小歯車１９と前記原動プーリ１１に
連結した大歯車２０とから構成され２ており、前記大小
歯車１９．２０を上述した本発明第２実施例の如く構成
することにより、騒音の少ない長寿命の自動扉が得られ
るようにしているのである。FIGS. 6 and 7 show an automatic door using the present invention, and the structure thereof will be explained below. 8 is eyeless,
It is formed by extrusion molding of aluminum or the like to have a heptagonal cross-sectional shape, and the lower front edge is used as a rail portion 10 on which the door roller 9.9 runs. A driving pulley 11 and a driven pulley 12 are disposed at both ends of the blind 8, and an annular belt 18 is stretched between the pulleys 11 and 12. The door 14 is suspended from the rail section 10 by a pair of hangers 15, 15 to which the door wheels 9, 9 are attached.One hanger 15 is connected to the annular belt 18, and as the annular belt 18 moves, the door 14 is suspended from the rail section 10. I am trying to move around freely. The drive pulley 11 is driven by a motor 17 via a reduction gear 16, and the reduction gear 16 connects the motor 17 with a V-belt 1.
8, and a large gear 20 connected to the drive pulley 11. By configuring the large and small gears 19 and 20 as in the second embodiment of the present invention described above, This makes it possible to obtain an automatic door that produces less noise and has a longer lifespan.

以上の如く本発明は歯面をプラスチック部材と金属部材
とで形成したことを特徴とする歯車であって、歯車をか
み合わせるとプラスチック部材の衝突となるので歯当り
、音が小さくなって騒音が減少し、しかも歯面に金属部
材も使用しているので一耐摩耗性、耐衝撃性も向上して
長寿命となる効果がある。As described above, the present invention is a gear characterized in that the tooth surfaces are formed of a plastic member and a metal member, and when the gears are meshed, the plastic members collide, resulting in tooth contact, which reduces the sound and reduces the noise. Moreover, since a metal member is used on the tooth surface, wear resistance and impact resistance are also improved, resulting in a long life.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明実施例の斜視図、第２図は第１図の断面
図、第８図は同上の要部側面図、第４図は異なる実施例
を示す斜視図、第６図は第４図の断面図、第６図は本発
明を使用した自動扉の正面図、第７図は同上の要部断面
図である。 ２．４，５・・歯車基体、８・・凹溝。 第１図　　　　　　　　第２図Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a sectional view of Fig. 1, Fig. 8 is a side view of the same main part, Fig. 4 is a perspective view showing a different embodiment, and Fig. 6 FIG. 4 is a sectional view, FIG. 6 is a front view of an automatic door using the present invention, and FIG. 7 is a sectional view of essential parts of the same. 2.4, 5...Gear base, 8...Concave groove. Figure 1 Figure 2

Claims (1)

【特許請求の範囲】 １）・　歯面をプラスチック部材と金属部材とで形成し
たことを特徴とする歯車０ ２）、プラスチック部材を金属部材よりも若干突出させ
たことを特徴とする特許請求の範囲第１項記載の歯車。 ８）、歯面の軸方向中央部をプラスチック部材で形成す
るとともに、その両側を金属部材で形成したことを特徴
とする特許請求の範囲第１項記載の歯車。 ４）、金属部材からなる歯車基体外周の軸方向中央部に
凹溝を形成し、前記凹溝にプラスチック部材を充填し、
外周面に歯形を形成したことを特徴とする特許請求の範
囲第１項記載の歯車０５）、金属部材からなる一対の円
板状歯車基体間にプラスチック部材からなる円板状歯車
基体を挟着し、外周面に歯形を形成したことを特徴とす
る特許請求の範囲第１項記載の歯車。[Claims] 1) A gear 0 characterized in that the tooth surface is formed of a plastic member and a metal member 2) A patent claim characterized in that the plastic member is slightly protruded from the metal member. Gears described in scope 1. 8) The gear according to claim 1, wherein the axial center portion of the tooth surface is made of a plastic member, and both sides thereof are made of a metal member. 4), forming a groove in the axial center of the outer periphery of the gear base made of a metal member, and filling the groove with a plastic member;
Gear 05) according to claim 1, characterized in that a tooth profile is formed on the outer circumferential surface, a disc-shaped gear base made of a plastic member is sandwiched between a pair of disc-shaped gear bases made of a metal member. The gear according to claim 1, characterized in that a tooth profile is formed on the outer peripheral surface.
JP56182012A 1981-11-12 1981-11-12 Gear Pending JPS5884257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56182012A JPS5884257A (en) 1981-11-12 1981-11-12 Gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56182012A JPS5884257A (en) 1981-11-12 1981-11-12 Gear

Publications (1)

Publication Number Publication Date
JPS5884257A true JPS5884257A (en) 1983-05-20

Family

ID=16110780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56182012A Pending JPS5884257A (en) 1981-11-12 1981-11-12 Gear

Country Status (1)

Country Link
JP (1) JPS5884257A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169357A (en) * 1990-06-22 1992-12-08 Valeo Torsion damping device, in particular for a clutch friction disc for a motor vehicle
FR2694358A1 (en) * 1992-07-31 1994-02-04 Bosch Gmbh Robert Wiper device for motor vehicles
WO2003045758A1 (en) * 2001-11-24 2003-06-05 Zf Lenksysteme Gmbh Motor-driven servo steering system for motor vehicles
DE10326819A1 (en) * 2003-06-13 2004-12-30 Zf Lenksysteme Gmbh Composite toothed wheel used in gears of vehicle servo steering system, has outer layers in harder material than inner layer
JP2005351427A (en) * 2004-06-11 2005-12-22 Delta Tooling Co Ltd Contact structure
EP1972828A3 (en) * 2007-03-22 2010-07-28 LuK Lamellen und Kupplungsbau Beteiligungs KG Rotational damper
CN104097228A (en) * 2014-07-02 2014-10-15 广东瑞洲科技有限公司 Transmission mechanism for tablet computer cutting machine
EP3686462A1 (en) * 2019-01-28 2020-07-29 IMS Gear SE & Co. KGaA Toothed wheel for use in a gear transmission, gear pairing of a gear transmission and gear transmission with such a gear pairing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169357A (en) * 1990-06-22 1992-12-08 Valeo Torsion damping device, in particular for a clutch friction disc for a motor vehicle
FR2694358A1 (en) * 1992-07-31 1994-02-04 Bosch Gmbh Robert Wiper device for motor vehicles
WO2003045758A1 (en) * 2001-11-24 2003-06-05 Zf Lenksysteme Gmbh Motor-driven servo steering system for motor vehicles
DE10326819A1 (en) * 2003-06-13 2004-12-30 Zf Lenksysteme Gmbh Composite toothed wheel used in gears of vehicle servo steering system, has outer layers in harder material than inner layer
JP2005351427A (en) * 2004-06-11 2005-12-22 Delta Tooling Co Ltd Contact structure
EP1972828A3 (en) * 2007-03-22 2010-07-28 LuK Lamellen und Kupplungsbau Beteiligungs KG Rotational damper
CN104097228A (en) * 2014-07-02 2014-10-15 广东瑞洲科技有限公司 Transmission mechanism for tablet computer cutting machine
EP3686462A1 (en) * 2019-01-28 2020-07-29 IMS Gear SE & Co. KGaA Toothed wheel for use in a gear transmission, gear pairing of a gear transmission and gear transmission with such a gear pairing
US11927257B2 (en) 2019-01-28 2024-03-12 IMS Gear SE &Co. KGaA Gear for use in a gear transmission, gear pairing of a gear transmission and gear transmission with such a gear pair

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