JP2007132436A - Assembling structure of double helical gear - Google Patents

Assembling structure of double helical gear Download PDF

Info

Publication number
JP2007132436A
JP2007132436A JP2005326367A JP2005326367A JP2007132436A JP 2007132436 A JP2007132436 A JP 2007132436A JP 2005326367 A JP2005326367 A JP 2005326367A JP 2005326367 A JP2005326367 A JP 2005326367A JP 2007132436 A JP2007132436 A JP 2007132436A
Authority
JP
Japan
Prior art keywords
gear
housing
helical gear
spur
helical
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.)
Granted
Application number
JP2005326367A
Other languages
Japanese (ja)
Other versions
JP4693604B2 (en
Inventor
Toru Hagiwara
徹 萩原
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.)
Enplas Corp
Original Assignee
Enplas Corp
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 Enplas Corp filed Critical Enplas Corp
Priority to JP2005326367A priority Critical patent/JP4693604B2/en
Publication of JP2007132436A publication Critical patent/JP2007132436A/en
Application granted granted Critical
Publication of JP4693604B2 publication Critical patent/JP4693604B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Gear Transmission (AREA)
  • Gears, Cams (AREA)
  • General Details Of Gearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To easily join a gear by meshing a double helical gear inserted from the housing outside with a double helical gear inside of a housing. <P>SOLUTION: This assembling structure of the gear can move a driven side second double helical gear 6 arranged inside the housing 1 in its rotary shaft 5 direction, and upwardly moves a driving side first double helical gear 4 arranged outside the housing 1 and installed on a driving shaft 3, and is meshed with the second double helical gear 6 by downwardly moving the first double helical gear 4 by being inserted into an incorporating hole 7 formed on a side wall of the housing 1. These first and second double helical gears 4 and 6 are moved in the inside direction of the housing 1 in a meshing state, and a bearing member 8 for holding the driving shaft 3 of the first double helical gear 4 is fitted and assembled in the incorporating hole 7 of the housing 1 side wall. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば駆動装置等のギヤボックス等において駆動側歯車及び従動側歯車として、歯のねじれ方向が反対向きのはすば歯車を同軸に組み合わせた形のやまば歯車を用いたものの組立構造に関し、詳しくは、ハウジング内部のやまば歯車に対してハウジング外側から挿入したやまば歯車を噛み合わせて歯車結合するのを容易とするやまば歯車の組立構造に係るものである。   The present invention is an assembly structure in which a helical gear having a coaxial combination of helical gears whose teeth twist directions are opposite to each other is used as a driving side gear and a driven side gear in a gear box or the like of a driving device, for example. More specifically, the present invention relates to an assembly structure of a splint gear that makes it easy to engage a sprocket gear inserted from the outside of the housing with a sprocket gear inside the housing so as to be gear-coupled.

従来のやまば歯車の組立構造としては、モータの出力軸に一体回転可能に取り付けられた第１のやまば歯車と、この第１のやまば歯車と噛み合って被動軸と一体に回転する第２のやまば歯車とを備えたギヤトレインが提案されている（例えば、特許文献１参照）。   As a conventional assembled structure of a blind gear, a first helical gear mounted on an output shaft of a motor so as to be integrally rotatable, and a second helical gear that meshes with the first helical gear and rotates integrally with a driven shaft. There has been proposed a gear train including a nose gear (see, for example, Patent Document 1).

この特許文献１に記載のギヤトレインは、例えばインクジェットプリンタに適用されるもので、プリンタ本体のハウジングの内部に給紙ローラ軸が配設され、この給紙ローラ軸のハウジングの外側に突出した端部に第２のやまば歯車が取り付けられており、この第２のやまば歯車に対して、モータの出力軸に一体回転可能に取り付けられた第１のやまば歯車を噛み合わせて歯車結合している。この場合は、第１及び第２のやまば歯車の両方がハウジングの外側に配置されているので、特に組み立て上の大きな問題はない。
特開２００５−１２１０９４号公報 The gear train described in Patent Document 1 is applied to, for example, an ink jet printer. A paper feed roller shaft is disposed inside a housing of a printer body, and an end of the paper feed roller shaft that protrudes outside the housing. A second spur gear is attached to the portion, and the second spur gear is engaged with the first spur gear that is attached to the output shaft of the motor so as to be integrally rotatable. ing. In this case, since both the first and second helical gears are arranged outside the housing, there is no particular problem in assembly.
JP 2005-121094 A

ところが従来において、図１５に示すように、ハウジング１の外側にてモータ２の出力軸３に取り付けられた第１のやまば歯車４が配置され、ハウジング１の内部にて回転軸５に取り付けられた第２のやまば歯車６が配置されているギヤトレインが存在する。   However, in the prior art, as shown in FIG. 15, a first spur gear 4 attached to the output shaft 3 of the motor 2 is arranged outside the housing 1, and attached to the rotary shaft 5 inside the housing 1. There is also a gear train in which the second spur gear 6 is arranged.

このようなギヤトレインの場合は、ハウジング１の側壁にあけられた組込み用穴７に第１のやまば歯車４を矢印Ａのように挿入すると、図１６に示すように、歯のねじれ方向が反対向きのはすば歯車を同軸に組み合わせた形のやまば歯車４，６同士が干渉して、ハウジング１内部の第２のやまば歯車６に対してハウジング１外側から挿入した第１のやまば歯車４を噛み合わせることができず、組み立てができないものであった。   In the case of such a gear train, when the first pinion gear 4 is inserted in the mounting hole 7 formed in the side wall of the housing 1 as shown by the arrow A, the twisting direction of the teeth is changed as shown in FIG. The first helical gears 4 and 6 in the form of a coaxial combination of oppositely facing helical gears interfere with each other and are inserted into the second helical gear 6 inside the housing 1 from the outside of the housing 1. The gear 4 cannot be meshed and cannot be assembled.

これに対処して、図１７に示すように、モータ２を矢印Ｂのように上移動させて組込み用穴７の上側の縁部ぎりぎりまで第１のやまば歯車４を位置させ、この状態でモータ２を矢印Ａのように移動して第１のやまば歯車４を差し込んだ場合は、図１８に示すように、二つのやまば歯車４，６同士の干渉は避けることができるが、挿入の最終段階においてモータ２の出力軸３の軸受部材８が組込み用穴７の上側の縁部に当たってしまい、組込み用穴７内に軸受部材８を嵌合することができず、結局、ハウジング１内部の第２のやまば歯車６に対してハウジング１外側から挿入した第１のやまば歯車４を噛み合わせて組み立てることができないものであった。   In response to this, as shown in FIG. 17, the motor 2 is moved upward as indicated by an arrow B, and the first spur gear 4 is positioned to the edge of the upper side of the mounting hole 7 in this state. When the motor 2 is moved as shown by the arrow A and the first helical gear 4 is inserted, interference between the two helical gears 4 and 6 can be avoided as shown in FIG. In the final stage, the bearing member 8 of the output shaft 3 of the motor 2 hits the upper edge of the mounting hole 7, so that the bearing member 8 cannot be fitted into the mounting hole 7. The first toothbrush gear 4 inserted from the outside of the housing 1 with respect to the second toothbrush gear 6 cannot be assembled and assembled.

そこで、本発明は、このような問題点に対処し、ハウジング内部のやまば歯車に対してハウジング外側から挿入したやまば歯車を噛み合わせて歯車結合するのを容易とするやまば歯車の組立構造を提供することを目的とする。   Accordingly, the present invention addresses such a problem and makes it easy to engage a spur gear inserted from the outside of the housing with a spur gear inside the housing so as to easily engage the spur gear. The purpose is to provide.

上記目的を達成するために、本発明によるやまば歯車の組立構造は、ハウジングの外側に配置されて駆動軸に取り付けられた駆動側の第１のやまば歯車と、上記ハウジングの内部に配置された従動側の第２のやまば歯車と、上記ハウジングの側壁に形成され第１のやまば歯車の駆動軸を保持するための組込み用穴と、上記組込み用穴に略すき間なく嵌合されて上記第１のやまば歯車の駆動軸を保持する軸受部材とを備え、上記ハウジング内部の第２のやまば歯車に対してハウジング外側から挿入した第１のやまば歯車を噛み合わせて歯車結合するやまば歯車の組立構造において、上記ハウジング内部の第２のやまば歯車をその回転軸方向に移動可能とし、第１のやまば歯車を上移動させて上記組込み用穴に差し込み、該第１のやまば歯車を下移動させて第２のやまば歯車に噛み合わせ、第１及び第２のやまば歯車が噛み合った状態でそれらをハウジングの内側方向に移動させて、上記ハウジング側壁の組込み用穴内に上記軸受部材を嵌合して組み立てるようにしたものである。   In order to achieve the above object, an assembly structure of a spur gear according to the present invention includes a drive-side first sprocket gear that is disposed outside a housing and attached to a drive shaft, and is disposed inside the housing. The driven side second spur gear, the mounting hole formed on the side wall of the housing for holding the drive shaft of the first spur gear, and the mounting hole are fitted with almost no clearance. And a bearing member for holding the drive shaft of the first blind gear, and the first helical gear inserted from the outside of the housing is engaged with the second helical gear inside the housing to be coupled to the gear. In the assembling structure of the spur gear, the second spur gear inside the housing can be moved in the direction of the rotation axis, the first spur gear is moved upward and inserted into the mounting hole, Down the cogwheel The bearing member is engaged with the second helical gear, moved in the direction toward the inside of the housing with the first and second helical gears engaged, and the bearing member is inserted into the mounting hole in the housing side wall. It is designed to be fitted and assembled.

このような構成により、ハウジング内部の第２のやまば歯車をその回転軸方向に移動可能とし、ハウジングの外側に配置された第１のやまば歯車を上移動させて、ハウジングの側壁に形成され第１のやまば歯車の駆動軸を保持するための組込み用穴に差し込み、該第１のやまば歯車を下移動させて第２のやまば歯車に噛み合わせ、第１及び第２のやまば歯車が噛み合った状態でそれらをハウジングの内側方向に移動させて、ハウジング側壁の組込み用穴内に軸受部材を嵌合して組み立てる。   With such a configuration, the second spur gear inside the housing can be moved in the direction of the rotation axis, and the first spur gear arranged outside the housing is moved upward to form the side wall of the housing. Inserting into the mounting hole for holding the drive shaft of the first spur gear, moving the first spur gear downward to mesh with the second spur gear, and the first and second splints In a state where the gears are engaged with each other, they are moved toward the inside of the housing, and the bearing member is fitted into the assembly hole in the side wall of the housing and assembled.

また、上記ハウジングの内側壁と第２のやまば歯車との間に、該第２のやまば歯車の回転軸方向に伸縮する弾性部材を介在させてもよい。これにより、ハウジングの内側壁と第２のやまば歯車との間に介在された弾性部材で、第２のやまば歯車をその回転軸方向に付勢可能とする。   Further, an elastic member that expands and contracts in the direction of the rotation axis of the second helical gear may be interposed between the inner wall of the housing and the second helical gear. Accordingly, the second helical gear can be urged in the direction of the rotation axis by an elastic member interposed between the inner wall of the housing and the second helical gear.

さらに、上記第２のやまば歯車の外周部の歯形形成部は、その回転軸方向に弾性的に変位可能な構造とされている。これにより、第２のやまば歯車の外周部の歯形形成部がその回転軸方向に弾性的に変位可能となる。   Furthermore, the tooth profile forming portion on the outer peripheral portion of the second blind gear is structured to be elastically displaceable in the direction of the rotation axis. As a result, the tooth profile forming portion of the outer peripheral portion of the second spur gear can be elastically displaced in the direction of the rotation axis.

さらにまた、上記第２のやまば歯車は、２段変速ギヤとされている。これにより、２段変速ギヤとされた第２のやまば歯車で、第１のやまば歯車との噛み合いによって２段変速を可能とする。   Furthermore, the second blind gear is a two-speed gear. As a result, the second helical gear that is a two-speed transmission gear enables two-speed transmission by meshing with the first helical gear.

請求項１に係る発明によれば、ハウジング内部の第２のやまば歯車をその回転軸方向に移動可能とし、ハウジングの外側に配置された第１のやまば歯車を上移動させて、ハウジングの側壁に形成され第１のやまば歯車の駆動軸を保持するための組込み用穴に差し込み、該第１のやまば歯車を下移動させて第２のやまば歯車に噛み合わせ、第１及び第２のやまば歯車が噛み合った状態でそれらをハウジングの内側方向に移動させて、ハウジング側壁の組込み用穴内に軸受部材を嵌合して組み立てることができる。したがって、ハウジング内部のやまば歯車に対してハウジング外側から挿入したやまば歯車を噛み合わせて歯車結合することができ、やまば歯車同士を容易に組み立てることができる。   According to the first aspect of the present invention, the second helical gear inside the housing is movable in the direction of the rotation axis, and the first helical gear arranged outside the housing is moved upward, It is inserted into a mounting hole formed on the side wall for holding the drive shaft of the first blind gear, and the first blind gear is moved downward to mesh with the second blind gear, and the first and second In the state where the two spur gears are engaged with each other, they can be moved inwardly of the housing, and the bearing member can be fitted into the assembly hole in the side wall of the housing and assembled. Therefore, the cogwheels inserted from the outside of the housing can be meshed with the cogwheel gears inside the housing to be gear-coupled, and the cochlear gears can be easily assembled.

また、請求項２に係る発明によれば、ハウジングの内側壁と第２のやまば歯車との間に介在された弾性部材で、第２のやまば歯車をその回転軸方向に付勢可能とすることができる。したがって、第２のやまば歯車をその回転軸方向に付勢して回転軸方向のガタつきをなくすことができる。   According to the second aspect of the present invention, the elastic member interposed between the inner wall of the housing and the second spur gear can bias the second spur gear in the direction of the rotation axis. can do. Therefore, the play in the direction of the rotation axis can be eliminated by urging the second spur gear in the direction of the rotation axis.

さらに、請求項３に係る発明によれば、第２のやまば歯車の外周部の歯形形成部がその回転軸方向に弾性的に変位可能となる。したがって、第２のやまば歯車の外周部に外力を加えない状態では、歯形形成部をその回転軸方向にて中立状態に保持してガタつきをなくすことができる。   Furthermore, according to the invention which concerns on Claim 3, the tooth-form formation part of the outer peripheral part of a 2nd helical gear can be elastically displaced to the rotating shaft direction. Therefore, in the state where no external force is applied to the outer peripheral portion of the second spur gear, the tooth profile forming portion can be held in a neutral state in the direction of the rotation axis to eliminate rattling.

さらにまた、請求項４に係る発明によれば、２段変速ギヤとされた第２のやまば歯車で、第１のやまば歯車との噛み合いによって２段変速を可能とすることができる。したがって、各種の駆動装置等のギヤボックス等に適用できる。   Further, according to the fourth aspect of the invention, the second step-gear gear that is a two-step transmission gear can be changed to a two-step speed change by meshing with the first step gear. Therefore, the present invention can be applied to gear boxes and the like of various drive devices.

以下、本発明の実施形態を添付図面に基づいて詳細に説明する。
図１〜図４は、本発明によるやまば歯車の組立構造の第１の実施形態を示す説明図である。このやまば歯車の組立構造は、例えば駆動装置等のギヤボックス等において駆動側歯車及び従動側歯車として、歯のねじれ方向が反対向きのはすば歯車を同軸に組み合わせた形のやまば歯車を用いた組立構造で、駆動側の第１のやまば歯車４と、従動側の第２のやまば歯車６とを備えている。 Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIGS. 1-4 is explanatory drawing which shows 1st Embodiment of the assembly structure of the spur gear by this invention. This helical gear assembly structure is, for example, a helical gear in the form of a coaxial combination of helical gears whose teeth twist directions are opposite to each other as drive side gears and driven side gears in a gear box of a drive device or the like. The assembly structure used includes a drive-side first helical gear 4 and a driven-side second helical gear 6.

図１において、第１のやまば歯車４は、例えばプリンタ本体のハウジング１の外側に配置されてモータ２の出力軸３に取り付けられている。このモータ２の出力軸３は、第１のやまば歯車４に対して駆動力を与える駆動軸となるものである。   In FIG. 1, the first spur gear 4 is disposed, for example, outside the housing 1 of the printer main body and attached to the output shaft 3 of the motor 2. The output shaft 3 of the motor 2 serves as a driving shaft that applies a driving force to the first helical gear 4.

ハウジング１の内部には、第２のやまば歯車６が配置されている。この第２のやまば歯車６は、第１のやまば歯車４と噛み合ってギヤトレインを構成するもので、ハウジング１の内部に設けられた回転軸５に取り付けられている。   A second helical gear 6 is arranged inside the housing 1. The second helical gear 6 meshes with the first helical gear 4 to constitute a gear train, and is attached to a rotating shaft 5 provided inside the housing 1.

そして、ハウジング１の側壁には、第１のやまば歯車４が取り付けられたモータ２の出力軸３を保持するための組込み用穴７が形成されている。また、モータ２の出力軸３の根元には、組込み用穴７に略すき間なく嵌合されてそのモータ２の出力軸３を保持する軸受部材８が取り付けられている。このとき、組込み用穴７の内径は第１のやまば歯車４の外径よりも大とされ、組込み用穴７内を第１のやまば歯車４が自由に出入り可能とされている。また、軸受部材８の外径は、第１のやまば歯車４の外径よりも大とされると共に、組込み用穴７の内径よりやや小さくされてその内部に略すき間なく嵌合されるようになっている。   A housing hole 7 for holding the output shaft 3 of the motor 2 to which the first spur gear 4 is attached is formed on the side wall of the housing 1. A bearing member 8 that is fitted into the mounting hole 7 without any gap and holds the output shaft 3 of the motor 2 is attached to the base of the output shaft 3 of the motor 2. At this time, the inner diameter of the mounting hole 7 is made larger than the outer diameter of the first blind gear 4 so that the first helical gear 4 can freely enter and leave the mounting hole 7. Further, the outer diameter of the bearing member 8 is made larger than the outer diameter of the first blind gear 4 and is made slightly smaller than the inner diameter of the mounting hole 7 so as to be fitted into the inside thereof with almost no gap. It has become.

ここで、本発明においては、図４に示すように、ハウジング１内部の第２のやまば歯車６がその回転軸５の方向に沿って、矢印Ｃ，Ｄ方向に移動可能の構造とされている。例えば、回転軸５に対して第２のやまば歯車６のボス部がスプライン結合されている。そして、第２のやまば歯車６を矢印Ｄ方向に最も大きく移動したときは、第２のやまば歯車６の外側面とハウジング１の内側壁との間に隙間Ｇが形成されるようになっている。   Here, in the present invention, as shown in FIG. 4, the second helical gear 6 inside the housing 1 is structured to be movable in the directions of the arrows C and D along the direction of the rotation shaft 5. Yes. For example, the boss portion of the second helical gear 6 is splined to the rotating shaft 5. When the second pinion gear 6 is moved most greatly in the direction of arrow D, a gap G is formed between the outer surface of the second pinion gear 6 and the inner wall of the housing 1. ing.

このような構造において、ハウジング１内部の第２のやまば歯車６に対して、ハウジング１外側から第１のやまば歯車４を挿入して噛み合わせ、歯車を組み立てる状態について説明する。まず、図１において、ハウジング１内部の第２のやまば歯車６を作業者の手などにより矢印Ｃ方向に移動し、ハウジング１の内側壁に接近させておく。   In such a structure, a state in which the first helical gear 4 is inserted and meshed with the second helical gear 6 inside the housing 1 from the outside of the housing 1 to assemble the gear will be described. First, in FIG. 1, the second helical gear 6 inside the housing 1 is moved in the direction of arrow C by an operator's hand or the like, and is brought close to the inner wall of the housing 1.

次に、モータ２を矢印Ｂのように持ち上げて第１のやまば歯車４を上移動させ、ハウジング１の組込み用穴７の上側の縁部ぎりぎりまで第１のやまば歯車４を位置させ、この状態でモータ２を矢印Ａのように移動して第１のやまば歯車４を組込み用穴７に差し込む。すると、図２に示すように、第１のやまば歯車４は、ハウジング１の内部に挿入されて第２のやまば歯車６の外周面の上方に位置する。この状態では、まだ二つのやまば歯車４，６は噛み合ってはいない。また、そのまま第１のやまば歯車４を差し込むと、軸受部材８が組込み用穴７の上側の縁部に当たることとなる。   Next, the motor 2 is lifted as shown by an arrow B to move the first pinion gear 4 upward, and the first pinion gear 4 is positioned to the edge of the upper side of the mounting hole 7 of the housing 1. In this state, the motor 2 is moved as shown by the arrow A, and the first spur gear 4 is inserted into the mounting hole 7. Then, as shown in FIG. 2, the first helical gear 4 is inserted into the housing 1 and positioned above the outer peripheral surface of the second helical gear 6. In this state, the two spur gears 4 and 6 are not yet engaged. Further, when the first blind gear 4 is inserted as it is, the bearing member 8 comes into contact with the upper edge of the mounting hole 7.

そこで、図２において、モータ２を矢印Ｅのように下降させて第１のやまば歯車４を下移動させる。すると、図３に示すように、第２のやまば歯車６に対して第１のやまば歯車４が上方から下降して噛み合うと共に、軸受部材８が組込み用穴７の正面に位置する。この状態で、モータ２を矢印Ｆのように移動して第１のやまば歯車４をハウジング１の内側方向に移動させると共に、ハウジング１内部の第２のやまば歯車６を作業者の手などにより矢印Ｄ方向に移動させる。   Therefore, in FIG. 2, the motor 2 is lowered as indicated by an arrow E, and the first spur gear 4 is moved downward. Then, as shown in FIG. 3, the first pinion gear 4 descends from above and meshes with the second pinion gear 6, and the bearing member 8 is positioned in front of the mounting hole 7. In this state, the motor 2 is moved as indicated by an arrow F to move the first spur gear 4 inward of the housing 1 and the second spur gear 6 inside the housing 1 is moved by an operator's hand. To move in the direction of arrow D.

すると、図４に示すように、ハウジング１の組込み用穴７内に軸受部材８が略すき間なく合致して嵌合し、第１及び第２のやまば歯車４，６が噛み合った状態でそれらをハウジング１の内側方向に移動させて、第１及び第２のやまば歯車４，６を歯車結合して組み立てることができる。なお、この状態では、第２のやまば歯車６の外側面とハウジング１の内側壁との間に隙間Ｇが形成されている。   Then, as shown in FIG. 4, the bearing member 8 fits in the mounting hole 7 of the housing 1 with almost no gap, and the first and second blind gears 4 and 6 are engaged with each other. Can be assembled by moving the first and second blind gears 4 and 6 together. In this state, a gap G is formed between the outer surface of the second helical gear 6 and the inner wall of the housing 1.

図５〜図８は、本発明によるやまば歯車の組立構造の第２の実施形態を示す説明図である。この実施形態は、図８に示すように、ハウジング１の内側壁と第２のやまば歯車６の外側面との間に、該第２のやまば歯車６の回転軸５の方向に伸縮する弾性部材９を介在させたものである。この弾性部材９は、板バネ、コイルスプリングなど、第２のやまば歯車６をその回転軸５の方向に沿って矢印Ｃ，Ｄ方向に弾性的に移動可能とするものなら、どのようなものであってもよい。   5-8 is explanatory drawing which shows 2nd Embodiment of the assembly structure of the spur gear by this invention. In this embodiment, as shown in FIG. 8, it extends and contracts in the direction of the rotating shaft 5 of the second blind gear 6 between the inner wall of the housing 1 and the outer surface of the second blind gear 6. The elastic member 9 is interposed. The elastic member 9 may be any material such as a leaf spring or a coil spring as long as the second helical gear 6 can be moved elastically in the directions of the arrows C and D along the direction of the rotation shaft 5. It may be.

第２の実施形態におけるやまば歯車４，６の組み立て状態については、基本的には図１〜図４に示す第１の実施形態と同様であるが、以下異なる点だけを説明する。図５において、ハウジング１内部の第２のやまば歯車６を作業者の手などにより矢印Ｃ方向に移動するのは、図８に示す弾性部材９の弾性力に抗して力を加え、第２のやまば歯車６をハウジング１の内側壁に接近させておく。また、図７において、モータ２を矢印Ｆのように移動して第１のやまば歯車４をハウジング１の内側方向に移動させると共に、ハウジング１内部の第２のやまば歯車６を矢印Ｄ方向に移動させるのは、弾性部材９の弾性力に抗して加えていた力を解除するだけでよい。これにより、図８に示すように、弾性部材９の弾性力によってハウジング１内部の第２のやまば歯車６を矢印Ｄ方向に移動させて、図４と同様に第１及び第２のやまば歯車４，６を歯車結合して組み立てることができる。   The assembled state of the spur gears 4 and 6 in the second embodiment is basically the same as that of the first embodiment shown in FIGS. 1 to 4, but only different points will be described below. In FIG. 5, the second helical gear 6 in the housing 1 is moved in the direction of arrow C by the operator's hand or the like to apply a force against the elastic force of the elastic member 9 shown in FIG. The second helical gear 6 is kept close to the inner wall of the housing 1. In FIG. 7, the motor 2 is moved as indicated by arrow F to move the first blind gear 4 inward of the housing 1, and the second blind gear 6 inside the housing 1 is moved in the direction of arrow D. It is only necessary to release the force applied against the elastic force of the elastic member 9. As a result, as shown in FIG. 8, the second spur gear 6 inside the housing 1 is moved in the direction of the arrow D by the elastic force of the elastic member 9, and the first and second splints as in FIG. The gears 4 and 6 can be assembled by gear coupling.

図９〜図１２は、本発明によるやまば歯車の組立構造の第３の実施形態を示す説明図である。この実施形態は、図１２に示すように、第２のやまば歯車６の外周部の歯形形成部１０が、その回転軸５の方向に弾性的に変位可能な構造とされている。この外周部の歯形形成部１０を弾性的に変位可能とする構造は、回転軸５側のボス部１１と外周部の歯形形成部１０とを結ぶ円板状のウェブを例えばベローズ１２のように形成すればよい。このベローズ１２により、第２のやまば歯車６は、歯車としての回転は伝達しながら、その回転軸５の方向には歯形形成部１０が矢印Ｃ，Ｄ方向に弾性的に変位可能とされる。なお、歯形形成部１０を弾性的に変位可能とする構造は、ベローズ１２に限られず、他の弾性構造であってもよい。   FIGS. 9-12 is explanatory drawing which shows 3rd Embodiment of the assembly structure of the spur gear by this invention. In this embodiment, as shown in FIG. 12, the tooth profile forming portion 10 on the outer peripheral portion of the second helical gear 6 is configured to be elastically displaceable in the direction of the rotation shaft 5. The structure in which the tooth profile forming portion 10 on the outer peripheral portion can be elastically displaced is such that a disc-shaped web connecting the boss portion 11 on the rotating shaft 5 side and the tooth profile forming portion 10 on the outer peripheral portion is like a bellows 12, for example. What is necessary is just to form. The bellows 12 allows the second toothed spur gear 6 to be elastically displaced in the directions of the arrows C and D in the direction of the rotation shaft 5 while transmitting rotation as a gear. . In addition, the structure which makes the tooth profile formation part 10 elastically displaceable is not restricted to the bellows 12, and another elastic structure may be sufficient.

第３の実施形態におけるやまば歯車４，６の組み立て状態については、基本的には図１〜図４に示す第１の実施形態と同様であるが、以下異なる点だけを説明する。図９において、ハウジング１内部の第２のやまば歯車６を作業者の手などにより矢印Ｃ方向に移動するのは、図１２に示すベローズ１２の弾性力に抗して力を加え、第２のやまば歯車６をハウジング１の内側壁に接近させておく。また、図１１において、モータ２を矢印Ｆのように移動して第１のやまば歯車４をハウジング１の内側方向に移動させると共に、ハウジング１内部の第２のやまば歯車６を矢印Ｄ方向に移動させるのは、ベローズ１２の弾性力に抗して加えていた力を解除するだけでよい。これにより、図１２に示すように、ベローズ１２の弾性力によってハウジング１内部の第２のやまば歯車６を矢印Ｄ方向に移動させて、図４と同様に第１及び第２のやまば歯車４，６を歯車結合して組み立てることができる。   The assembled state of the spur gears 4 and 6 in the third embodiment is basically the same as that of the first embodiment shown in FIGS. 1 to 4, but only different points will be described below. In FIG. 9, the second helical gear 6 inside the housing 1 is moved in the direction of the arrow C by the operator's hand or the like to apply a force against the elastic force of the bellows 12 shown in FIG. The helical gear 6 is kept close to the inner wall of the housing 1. In FIG. 11, the motor 2 is moved as indicated by an arrow F to move the first blind gear 4 inward of the housing 1, and the second blind gear 6 inside the housing 1 is moved in the direction of arrow D. It is only necessary to release the force applied against the elastic force of the bellows 12. As a result, as shown in FIG. 12, the second spur gear 6 inside the housing 1 is moved in the direction of arrow D by the elastic force of the bellows 12, and the first and second spur gears are similar to FIG. 4 and 6 can be assembled by gear coupling.

図１３及び図１４は、本発明によるやまば歯車の組立構造の第４の実施形態を示す説明図であり、図１３は図１に対応しており、図１４は図４に対応している。この実施形態は、第２のやまば歯車６を２段変速ギヤとしたものである。すなわち、第２のやまば歯車６は、径が大きくて歯数が多い第１変速ギヤ６ａと、径が小さくて歯数が少ない第２変速ギヤ６ｂとを備えている。この第４の実施形態におけるやまば歯車４，６の組み立て状態については、基本的には図１〜図４に示す第１の実施形態と全く同様である。この場合は、２段変速ギヤとされた第２のやまば歯車６で、第１のやまば歯車４との噛み合いによって２段変速を可能とすることができる。したがって、各種の駆動装置等のギヤボックス等に適用できる。   13 and 14 are explanatory views showing a fourth embodiment of the assembling structure of the spur gear according to the present invention. FIG. 13 corresponds to FIG. 1 and FIG. 14 corresponds to FIG. . In this embodiment, the second blind gear 6 is a two-speed gear. In other words, the second spur gear 6 includes a first transmission gear 6a having a large diameter and a large number of teeth, and a second transmission gear 6b having a small diameter and a small number of teeth. The assembled state of the spur gears 4 and 6 in the fourth embodiment is basically the same as that in the first embodiment shown in FIGS. In this case, the second helical gear 6 that is a two-stage transmission gear can be changed to a two-stage transmission by meshing with the first helical gear 4. Therefore, the present invention can be applied to gear boxes and the like of various drive devices.

なお、図１３及び図１４は、図１〜図４に示される本発明の第１の実施形態における第２のやまば歯車６を２段変速ギヤとしたものであるが、本発明はこれに限られず、図５〜図８に示される第２の実施形態における第２のやまば歯車６を２段変速ギヤとしてもよいし、図９〜図１２に示される第３の実施形態における第２のやまば歯車６を２段変速ギヤとしてもよい。   13 and 14 show a case where the second spur gear 6 in the first embodiment of the present invention shown in FIGS. 1 to 4 is a two-speed gear, but the present invention is not limited thereto. Without being limited thereto, the second spur gear 6 in the second embodiment shown in FIGS. 5 to 8 may be a two-speed gear, or the second gear in the third embodiment shown in FIGS. 9 to 12. The nose gear 6 may be a two-speed gear.

本発明によるやまば歯車の組立構造の第１の実施形態を示す説明図である。It is explanatory drawing which shows 1st Embodiment of the assembly structure of the spur gear by this invention. 同じく第１の実施形態を示す説明図である。It is explanatory drawing which similarly shows 1st Embodiment. 同じく第１の実施形態を示す説明図である。It is explanatory drawing which similarly shows 1st Embodiment. 同じく第１の実施形態を示す説明図である。It is explanatory drawing which similarly shows 1st Embodiment. 本発明によるやまば歯車の組立構造の第２の実施形態を示す説明図である。It is explanatory drawing which shows 2nd Embodiment of the assembly structure of the spur gear by this invention. 同じく第２の実施形態を示す説明図である。It is explanatory drawing which similarly shows 2nd Embodiment. 同じく第２の実施形態を示す説明図である。It is explanatory drawing which similarly shows 2nd Embodiment. 同じく第２の実施形態を示す説明図である。It is explanatory drawing which similarly shows 2nd Embodiment. 本発明によるやまば歯車の組立構造の第３の実施形態を示す説明図である。It is explanatory drawing which shows 3rd Embodiment of the assembly structure of the spur gear by this invention. 同じく第３の実施形態を示す説明図である。It is explanatory drawing which similarly shows 3rd Embodiment. 同じく第３の実施形態を示す説明図である。It is explanatory drawing which similarly shows 3rd Embodiment. 同じく第３の実施形態を示す説明図である。It is explanatory drawing which similarly shows 3rd Embodiment. 本発明によるやまば歯車の組立構造の第４の実施形態を示す説明図である。It is explanatory drawing which shows 4th Embodiment of the assembly structure of the spur gear by this invention. 同じく第４の実施形態を示す説明図である。It is explanatory drawing which similarly shows 4th Embodiment. 従来のやまば歯車の組立構造における組立状態を示す説明図である。It is explanatory drawing which shows the assembly state in the assembly structure of the conventional pinion gear. 同じくやまば歯車の組立構造における組立状態を示す説明図である。It is explanatory drawing which shows the assembly state in the assembly structure of a spur gear similarly. 従来のやまば歯車の組立構造における他の組立状態を示す説明図である。It is explanatory drawing which shows the other assembly state in the assembly structure of the conventional pinion gear. 同じくやまば歯車の組立構造における他の組立状態を示す説明図である。It is explanatory drawing which shows the other assembly state in the assembly structure of a spur gear similarly.

符号の説明Explanation of symbols

１…ハウジング
２…モータ
３…出力軸
４…第１のやまば歯車
５…回転軸
６…第２のやまば歯車
６ａ…第１変速ギヤ
６ｂ…第２変速ギヤ
７…組込み用穴
８…軸受部材
９…弾性部材
１０…歯形形成部
１１…ボス部
１２…ベローズ DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Motor 3 ... Output shaft 4 ... 1st helical gear 5 ... Rotating shaft 6 ... 2nd helical gear 6a ... 1st transmission gear 6b ... 2nd transmission gear 7 ... Installation hole 8 ... Bearing Member 9 ... Elastic member 10 ... Tooth profile forming part 11 ... Boss part 12 ... Bellows

Claims (4)

ハウジングの外側に配置されて駆動軸に取り付けられた駆動側の第１のやまば歯車と、
上記ハウジングの内部に配置された従動側の第２のやまば歯車と、
上記ハウジングの側壁に形成され第１のやまば歯車の駆動軸を保持するための組込み用穴と、
上記組込み用穴に略すき間なく嵌合されて上記第１のやまば歯車の駆動軸を保持する軸受部材と、
を備え、上記ハウジング内部の第２のやまば歯車に対してハウジング外側から挿入した第１のやまば歯車を噛み合わせて歯車結合するやまば歯車の組立構造において、
上記ハウジング内部の第２のやまば歯車をその回転軸方向に移動可能とし、第１のやまば歯車を上移動させて上記組込み用穴に差し込み、該第１のやまば歯車を下移動させて第２のやまば歯車に噛み合わせ、第１及び第２のやまば歯車が噛み合った状態でそれらをハウジングの内側方向に移動させて、上記ハウジング側壁の組込み用穴内に上記軸受部材を嵌合して組み立てるようにしたことを特徴とするやまば歯車の組立構造。 A drive-side first helical gear disposed outside the housing and attached to the drive shaft;
A second helical gear on the driven side disposed inside the housing;
A mounting hole formed on the side wall of the housing for holding the drive shaft of the first spur gear;
A bearing member that is fitted in the mounting hole substantially without gaps and holds the drive shaft of the first spur gear;
An assembly structure of a spur gear that engages a first sprocket gear inserted from the outside of the housing with the second spur gear inside the housing and is gear-coupled,
The second helical gear inside the housing is movable in the direction of the rotation axis, the first helical gear is moved upward and inserted into the mounting hole, and the first helical gear is moved downward. Engage with the second spur gear, move the first and second spur gears inwardly in the housing, and fit the bearing member into the mounting hole on the side wall of the housing. An assembly structure of a splint gear characterized by being assembled by 上記ハウジングの内側壁と第２のやまば歯車との間に、該第２のやまば歯車の回転軸方向に伸縮する弾性部材を介在させたことを特徴とする請求項１記載のやまば歯車の組立構造。   2. A helical gear according to claim 1, wherein an elastic member extending and contracting in the direction of the rotation axis of the second helical gear is interposed between the inner wall of the housing and the second helical gear. Assembly structure. 上記第２のやまば歯車の外周部の歯形形成部は、その回転軸方向に弾性的に変位可能な構造とされていることを特徴とする請求項１記載のやまば歯車の組立構造。   2. The assemblage structure of a spur gear according to claim 1, wherein the tooth profile forming portion of the outer peripheral portion of the second spur gear is structured to be elastically displaceable in the direction of the rotation axis. 上記第２のやまば歯車は、２段変速ギヤとされていることを特徴とする請求項１〜３のいずれか１項に記載のやまば歯車の組立構造。   The assembled structure of the helical gear according to any one of claims 1 to 3, wherein the second helical gear is a two-speed transmission gear.
JP2005326367A 2005-11-10 2005-11-10 Assembling structure of the blind gear Expired - Fee Related JP4693604B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005326367A JP4693604B2 (en) 2005-11-10 2005-11-10 Assembling structure of the blind gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005326367A JP4693604B2 (en) 2005-11-10 2005-11-10 Assembling structure of the blind gear

Publications (2)

Publication Number Publication Date
JP2007132436A true JP2007132436A (en) 2007-05-31
JP4693604B2 JP4693604B2 (en) 2011-06-01

Family

ID=38154264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005326367A Expired - Fee Related JP4693604B2 (en) 2005-11-10 2005-11-10 Assembling structure of the blind gear

Country Status (1)

Country Link
JP (1) JP4693604B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017141851A (en) * 2016-02-08 2017-08-17 株式会社エンプラス Gear device and assembling method of gear device
JP2017150523A (en) * 2016-02-23 2017-08-31 トヨタ自動車株式会社 Power transmission device
CN109598086A (en) * 2018-12-19 2019-04-09 济南大学 A method of eliminating herringbone bear axial direction power
JP2020085103A (en) * 2018-11-22 2020-06-04 株式会社ユーシン Manufacturing method of gear device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08233071A (en) * 1995-02-27 1996-09-10 Nec Eng Ltd Backlash removal type gear
JP2000046153A (en) * 1998-07-27 2000-02-18 Konica Corp Multistage gear, gearing, and image forming device
JP2001082587A (en) * 1999-09-17 2001-03-27 Konica Corp Driving device and image forming device
JP2004332826A (en) * 2003-05-07 2004-11-25 Sumitomo Metal Ind Ltd Gearing device and undercarriage for railway vehicle
JP2005069458A (en) * 2003-08-04 2005-03-17 Enplas Corp Resin-made double helical gear, gear train, and ink jet printer
JP2005091669A (en) * 2003-09-17 2005-04-07 Ricoh Co Ltd Photoreceptor drive unit, photoreceptor device and image forming apparatus using the same
JP2005180595A (en) * 2003-12-19 2005-07-07 Enplas Corp Resin gear

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08233071A (en) * 1995-02-27 1996-09-10 Nec Eng Ltd Backlash removal type gear
JP2000046153A (en) * 1998-07-27 2000-02-18 Konica Corp Multistage gear, gearing, and image forming device
JP2001082587A (en) * 1999-09-17 2001-03-27 Konica Corp Driving device and image forming device
JP2004332826A (en) * 2003-05-07 2004-11-25 Sumitomo Metal Ind Ltd Gearing device and undercarriage for railway vehicle
JP2005069458A (en) * 2003-08-04 2005-03-17 Enplas Corp Resin-made double helical gear, gear train, and ink jet printer
JP2005091669A (en) * 2003-09-17 2005-04-07 Ricoh Co Ltd Photoreceptor drive unit, photoreceptor device and image forming apparatus using the same
JP2005180595A (en) * 2003-12-19 2005-07-07 Enplas Corp Resin gear

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017141851A (en) * 2016-02-08 2017-08-17 株式会社エンプラス Gear device and assembling method of gear device
WO2017138288A1 (en) * 2016-02-08 2017-08-17 株式会社エンプラス Gear device and gear device assembly method
CN108603570A (en) * 2016-02-08 2018-09-28 恩普乐斯股份有限公司 The assembly method of geared system and geared system
US11187314B2 (en) 2016-02-08 2021-11-30 Enplas Corporation Gear device and method for assembling gear device
JP2017150523A (en) * 2016-02-23 2017-08-31 トヨタ自動車株式会社 Power transmission device
JP2020085103A (en) * 2018-11-22 2020-06-04 株式会社ユーシン Manufacturing method of gear device
JP7139228B2 (en) 2018-11-22 2022-09-20 株式会社ユーシン Gear device manufacturing method
CN109598086A (en) * 2018-12-19 2019-04-09 济南大学 A method of eliminating herringbone bear axial direction power
CN109598086B (en) * 2018-12-19 2022-10-11 济南大学 Method for eliminating axial force of herringbone gear

Also Published As

Publication number Publication date
JP4693604B2 (en) 2011-06-01

Similar Documents

Publication Publication Date Title
JP4693604B2 (en) Assembling structure of the blind gear
ITMI20012323A1 (en) GEARBOX AND GEARBOX DRIVE DEVICE, IN PARTICULAR FOR AN AUTOMATION OF THE CHANGE IN THE TRANSMISSION RATIO
WO2011135812A1 (en) One-way clutch
JP2007205397A (en) Wave motion gear and transmission ratio varying device
JP4725968B2 (en) Gear device
JP4945280B2 (en) Clutch mechanism
JP4401229B2 (en) Actuator with wave gear reducer
JP4962223B2 (en) Power transmission device
JP4434654B2 (en) Crown gear assembly
JP4923032B2 (en) Geared motor
JP2009079651A (en) Geared motor
JP4601454B2 (en) Geared motor device and toilet seat / toilet lid opening / closing device
JP2011080519A (en) Fastening structure of output shaft and transmission part
KR20060050594A (en) Clutch/brake apparatus
TWI788455B (en) Gear unit and assembly method thereof
JP2010064185A (en) Finger structure of robot hand
JP5316144B2 (en) Transmission ratio variable device
JP5395158B2 (en) Geared motor
JP4725727B2 (en) gear
JP2005337333A (en) Gear with torque limiter mechanism
JP2008133850A (en) Two-way clutch unit
JP6587005B2 (en) Timing belt differential mechanism
JP7085847B2 (en) Drive
JP7467046B2 (en) Gearing
JP2007145067A (en) Connecting structure of rotary shaft, and transmission ratio variable device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080829

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101216

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101221

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110113

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110222

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110222

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140304

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4693604

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees