JP2005082019A - Opening/closing body driving device - Google Patents

Opening/closing body driving device Download PDF

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JP2005082019A
JP2005082019A JP2003316781A JP2003316781A JP2005082019A JP 2005082019 A JP2005082019 A JP 2005082019A JP 2003316781 A JP2003316781 A JP 2003316781A JP 2003316781 A JP2003316781 A JP 2003316781A JP 2005082019 A JP2005082019 A JP 2005082019A
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drive motor
opening
output member
speed reduction
reduction mechanism
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Hiroki Okada
弘樹 岡田
Ryoichi Fukumoto
良一 福元
Tomoaki Nishimura
登茂昭 西村
Akinori Hoshino
彰教 星野
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Aisin Corp
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Aisin Seiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact opening/closing body driving device of less number of components. <P>SOLUTION: A rotation outputting member 78, a reduction gear 7 and a clutch mechanism 6 are arranged on and supported by a single rotary shaft 3 driven by a drive motor 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、車両に開閉自在に設けられた開閉体を開閉するための駆動装置に関するものである。   The present invention relates to a driving device for opening and closing an opening / closing body provided in a vehicle so as to be freely opened and closed.

従来、開閉体の開閉装置としては、車両のバックドアの開閉装置として適用されるものが知られている。このような開閉装置では、バックドアを電動でも、また手動でも開閉出来るように構成している。また、開閉装置は電磁クラッチを備え、電動でバックドアを開閉するときは、電磁クラッチに作動し、駆動モータの回転力を減速装置を介してバックドアに連結された開閉機構に伝達する構成となっている。一方、手動でバックドアを開閉するときは、電磁クラッチを非作動状態にすることによって、減速機構と駆動モータが操作の抵抗にならないようにして、軽い操作力で開閉できるようにしている。   2. Description of the Related Art Conventionally, as an opening / closing device for an opening / closing body, one that is applied as an opening / closing device for a back door of a vehicle is known. Such an opening / closing device is configured such that the back door can be opened / closed both electrically and manually. The opening / closing device includes an electromagnetic clutch, and when the back door is opened and closed electrically, the electromagnetic clutch is operated to transmit the rotational force of the drive motor to the opening / closing mechanism connected to the back door via the reduction device. It has become. On the other hand, when the back door is manually opened and closed, the electromagnetic clutch is deactivated so that the speed reduction mechanism and the drive motor do not become operational resistances and can be opened and closed with a light operating force.

(例えば、特許文献１参照。)。 (For example, see Patent Document 1).

上記ような機能を備える従来技術では、駆動モータからの回転駆動力を、駆動モータとは直角方向の回転軸を持つ電磁クラッチ機構も伝達し、電磁クラッチ機構とは平行の回転軸を備える減速機構に伝達し、更にバックドアに連結されるリンク機構へと伝達する構成となっている。
特開２００２-２４５５３２号公報 In the prior art having the above-described functions, the rotational driving force from the drive motor is also transmitted to the electromagnetic clutch mechanism having a rotation axis perpendicular to the drive motor, and the speed reduction mechanism having a rotation axis parallel to the electromagnetic clutch mechanism. It transmits to the link mechanism connected to the back door.
JP 2002-245532 A

しかしながら、上記した従来技術による構成では、駆動モータ、電磁クラッチ機構、減速機構とも夫々個別の回転軸を有していた。このために部品点数が多くなるばかりでなく、駆動装置の大型化を招く問題があった。   However, in the above-described configuration according to the prior art, each of the drive motor, the electromagnetic clutch mechanism, and the speed reduction mechanism has separate rotating shafts. For this reason, there is a problem that not only the number of parts increases, but also the drive device becomes large.

従って、本発明の解決しようとする課題は、小型でしかも部品点数の少ない駆動装置を実現することである。   Therefore, the problem to be solved by the present invention is to realize a drive device that is small and has a small number of parts.

上記問題点を解決するために講じた第１の技術的手段は、回転出力部材と、該回転出力部材に対する駆動力を発生する駆動モータと、前記駆動モータの回転駆動力を前記回転出力部材に回転数を減速して伝達する減速機構と、作動時に前記駆動モータの駆動力を前記回転出力部材へ伝達し、非作動時には前記駆動モータから前記回転出力部材への駆動力の伝達を遮断するクラッチ機構とを備える開閉体の駆動装置において、
前記回転出力部材と、前記減速機構と、前記クラッチ機構を駆動モータで駆動される単一の回転シャフト上に配置し支持したことである。 The first technical means taken to solve the above problems includes a rotation output member, a drive motor that generates a drive force for the rotation output member, and a rotation drive force of the drive motor to the rotation output member. A speed reduction mechanism that reduces and transmits the number of rotations, and a clutch that transmits the driving force of the drive motor to the rotation output member during operation and blocks transmission of the driving force from the drive motor to the rotation output member during non-operation. In a drive device for an opening / closing body comprising a mechanism,
The rotation output member, the speed reduction mechanism, and the clutch mechanism are disposed and supported on a single rotation shaft driven by a drive motor.

また、本発明で講じた第２の技術的手段は、上記第１の手段に加えて、前記駆動モータ、前記クラッチ機構、前記減速機構及び、前記回転出力部材の順に回転シャフト上に配置して構成したことである。   In addition to the first means, the second technical means taken in the present invention is arranged on the rotating shaft in the order of the drive motor, the clutch mechanism, the speed reduction mechanism, and the rotation output member. It is configured.

更に本発明で講じた第３の技術的手段は、上記第１又は第２の手段に加えて、前記減速機構はサイクロイド減速機構にしたことである。   Furthermore, the third technical means taken in the present invention is that, in addition to the first or second means, the speed reduction mechanism is a cycloid speed reduction mechanism.

更に本発明で講じた第４の技術的手段は、第３の技術的手段に加えて、上記前記サイクロイド減速機構の係止ギヤを前記クラッチ機構によって回転阻止可能に構成したことである。   Furthermore, the fourth technical means taken in the present invention is that, in addition to the third technical means, the locking gear of the cycloid reduction mechanism is configured to be prevented from rotating by the clutch mechanism.

この構成で、駆動モータと、減速機構と、クラッチ機構は単一の回転シャフトを回転軸として共有する構成のために、部品点数が大幅に少なくなる。また、駆動モータと、減速機構と、クラッチ機構は単一の回転シャフト上に配置されている構成であるために、特に装置の回転軸と直角方向への寸法を小さくできて小型になるとともに、部品点数を少なく構成できるようになる。   With this configuration, since the drive motor, the speed reduction mechanism, and the clutch mechanism share a single rotation shaft as the rotation axis, the number of parts is significantly reduced. In addition, since the drive motor, the speed reduction mechanism, and the clutch mechanism are arranged on a single rotation shaft, the size in the direction perpendicular to the rotation axis of the device can be particularly reduced and the size can be reduced. The number of parts can be reduced.

以下、本発明に関る駆動装置１を具体化した実施形態を図１と図２に従って説明する。   Hereinafter, an embodiment in which the drive device 1 according to the present invention is embodied will be described with reference to FIGS. 1 and 2.

図２に示されるように、車両１０のバックドア１１は、既知の構成と同様で、後端を上下に昇降することによって開閉出来るように車両後部に装着されている。駆動装置１は車両１０の側に装着され、リンク機構８を介してバックドア１１に連結され、図２に示すように、駆動装置１の作動によって、実線で示されるバックドア１１が閉じた状態と、２点鎖線で示される開いた状態にすることができる構成である。尚、バックドア１１と車両１０側の間には駆動装置１の駆動力を補助するように、既知のガスストラット１５が装着される。   As shown in FIG. 2, the back door 11 of the vehicle 10 is similar to a known configuration, and is attached to the rear portion of the vehicle so that it can be opened and closed by moving the rear end up and down. The drive device 1 is mounted on the vehicle 10 side and connected to the back door 11 via the link mechanism 8, and the back door 11 indicated by the solid line is closed by the operation of the drive device 1 as shown in FIG. And an open state indicated by a two-dot chain line. A known gas strut 15 is mounted between the back door 11 and the vehicle 10 so as to assist the driving force of the driving device 1.

このように構成された、バックドア１１を駆動装置１の作動によらないで開閉可能にするために、駆動装置１は後述するようにクラッチ装置６を内蔵する構成となっている。   In order to allow the back door 11 configured as described above to be opened and closed without depending on the operation of the drive device 1, the drive device 1 is configured to include a clutch device 6 as described later.

以下に、図１を用いて、本発明の駆動装置１について更に詳細に説明する。   Hereinafter, the driving apparatus 1 of the present invention will be described in more detail with reference to FIG.

駆動装置１は、車両１０側にネジ１４によって固定して取付けられるハウジング１２を備えている。ハウジング１２は一方端側に底辺を備え、他方端側は開放される円筒形状である。ハウジング１２の底辺の中心部には、穴１２ａが形成され、穴１２ａに取付けられたベアリング１２ｂによって、出力軸７８が回転自在に支持されている。出力軸７８のハウジング１２内になる一端側には内歯歯車である出力ギヤ７８ａが形成され、後述する減速装置７を構成している。一方、出力軸７８のハウジング１２の外に突出する他方端側の外周上には、軸方向に平行に複数の溝からなるセレーション部７７が形成されている。出力軸７８のセレーション部７７によって、出力リンク８１がネジ手段８２によって、出力軸７８に一体的に取付けられている。   The drive device 1 includes a housing 12 that is fixedly attached to the vehicle 10 side with screws 14. The housing 12 has a cylindrical shape provided with a base on one end side and opened on the other end side. A hole 12a is formed in the center of the bottom side of the housing 12, and an output shaft 78 is rotatably supported by a bearing 12b attached to the hole 12a. An output gear 78a, which is an internal gear, is formed on one end side of the output shaft 78 in the housing 12, and constitutes a reduction gear 7 described later. On the other hand, a serration portion 77 formed of a plurality of grooves is formed in parallel with the axial direction on the outer periphery of the other end side of the output shaft 78 protruding outside the housing 12. The output link 81 is integrally attached to the output shaft 78 by screw means 82 by the serration portion 77 of the output shaft 78.

ハウジング１２の円筒部内に位置して、減速装置７が配置される。減速装置７は、ハウジング１２の円筒部の中心に沿って延びる回転シャフト３上に回転自在に配置された係止ギヤ７１、揺動ギヤ７３と、前述の出力軸７８を備えている。出力軸７８の端部には出力ギヤ７８ａと、又中心部には回転シャフト３の１方端部とベアリング７９を介して回転自在に係合するための凹部７９が形成されている。回転シャフト３の外周には偏心部材７５が固定され、偏心部材７５の外周７５ａにベアリング７３ｃを介して揺動ギヤ７３が回転自在に取付けられる。この構成では回転シャフト３の回転で、揺動ギヤ７３の回転中心は回転シャフト３の中心周りに公転する構成になっている。また、係止ギヤ７１は、回転シャフト３にニードルベアリング７１ｂを介して回転自在となるとともに、回転シャフト３の軸方向への移動が許容される構成となっている。   The speed reducer 7 is disposed in the cylindrical portion of the housing 12. The speed reduction device 7 includes a locking gear 71, a swinging gear 73, and an output shaft 78 described above, which are rotatably disposed on a rotating shaft 3 extending along the center of the cylindrical portion of the housing 12. An output gear 78 a is formed at the end of the output shaft 78, and a concave portion 79 is formed at the center for engaging with one end of the rotary shaft 3 via a bearing 79. An eccentric member 75 is fixed to the outer periphery of the rotary shaft 3, and the swing gear 73 is rotatably attached to the outer periphery 75 a of the eccentric member 75 via a bearing 73 c. In this configuration, the rotation center of the oscillating gear 73 revolves around the center of the rotation shaft 3 by the rotation of the rotation shaft 3. The locking gear 71 is configured to be rotatable with respect to the rotating shaft 3 via a needle bearing 71b and to allow movement of the rotating shaft 3 in the axial direction.

揺動ギヤ７３は、外歯歯車の小径ギヤ７３ａと大径ギヤ７３ｂを備えている。係止ギヤ７１には内歯歯車７１ａが形成され、内歯歯車７１ａは揺動ギヤ７３の大径ギヤ７３ｂと噛合う。また、出力軸７８に形成された出力ギヤ７８ａは小径ギヤ７３ａと噛み合う。このように構成された歯車列は、係止ギヤ７１を固定し、回転シャフト３を回転させて揺動ギヤ７３の中心を公転させることによって、回転シャフト３の回転数を大きく減速して出力軸７８に伝達することができる既知のサイクロイド減速機構である。   The swing gear 73 includes a small-diameter gear 73a and a large-diameter gear 73b that are external gears. An internal gear 71 a is formed in the locking gear 71, and the internal gear 71 a meshes with the large-diameter gear 73 b of the swing gear 73. The output gear 78a formed on the output shaft 78 meshes with the small diameter gear 73a. The gear train thus configured fixes the locking gear 71, rotates the rotating shaft 3 and revolves the center of the swinging gear 73, thereby greatly reducing the rotational speed of the rotating shaft 3 to reduce the output shaft. 78 is a known cycloid reduction mechanism that can be transmitted to 78.

ハウジング１２内には、回転シャフト３の回転駆動力の出力軸７８への伝達、または遮断を制御するために、クラッチ機構６が備えられている。クラッチ機構６は、ハウジング１２とネジ１７で固定され、ハウジング１２の円筒形状部の開放部を塞ぐように配置される固定部６１を備えている。固定部６１に形成される環状の凹部には、コイル６２が装填され、リード線６３からコイル６２に通電することで係止ギヤ７１を吸引し、係止ギヤ７１を固定できる構成となっている。一方、コイル６２への通電を停止すれば係止ギヤ７１の回転は自由となり、回転シャフト３の回転は出力軸７８に伝達されなくなる。   A clutch mechanism 6 is provided in the housing 12 in order to control transmission or interruption of the rotational driving force of the rotary shaft 3 to the output shaft 78. The clutch mechanism 6 includes a fixing portion 61 that is fixed by a housing 12 and a screw 17 and is disposed so as to close an open portion of a cylindrical portion of the housing 12. A coil 62 is loaded in an annular recess formed in the fixing portion 61, and the locking gear 71 can be fixed by sucking the locking gear 71 by energizing the coil 62 from the lead wire 63. . On the other hand, when the energization of the coil 62 is stopped, the rotation of the locking gear 71 becomes free and the rotation of the rotating shaft 3 is not transmitted to the output shaft 78.

クラッチ機構６の固定部６１に対して、減速装置７と反対側には駆動モータ５が配置される。駆動モータ５の機構部を収納するケース５８は、ネジ１７でクラッチ機構６の固定部６１とハウジング１２に固定されている。駆動モータ５では、コイル５２を備える回転コア部５７が回転シャフト３に固定される構成となっている。一方、ケース５８の内径部には永久磁石５１が取付けられ、リード線５５、ブラッシ５４を経て、回転摺動子５３からコイル５２へと通電することによって回転コア部５７、回転シャフト３を回転駆動できる構成である。通電の極性を変更することによって、回転の方向を変更できることは既知である。   The drive motor 5 is disposed on the opposite side of the speed reduction device 7 with respect to the fixed portion 61 of the clutch mechanism 6. A case 58 that houses the mechanism portion of the drive motor 5 is fixed to the fixing portion 61 of the clutch mechanism 6 and the housing 12 with screws 17. In the drive motor 5, a rotary core portion 57 including a coil 52 is fixed to the rotary shaft 3. On the other hand, a permanent magnet 51 is attached to the inner diameter portion of the case 58, and the rotary core portion 57 and the rotary shaft 3 are driven to rotate by energizing the rotary slider 53 to the coil 52 through the lead wire 55 and the brush 54. It is a possible configuration. It is known that the direction of rotation can be changed by changing the polarity of energization.

次に上記のように構成された駆動装置１の作動について、以下に説明する。   Next, the operation of the drive device 1 configured as described above will be described below.

図示しない操作装置の操作に基いて、制御装置から駆動モータ５に電流が供給されて回転すると同時に、クラッチ機構６にも電流が供給されて、駆動モータ５の回転駆動力が、リンク機構８に伝達される。そして、バックドア１１は、図２に実線で示される閉状態から、２点鎖線で示される開放状態へと作動する。開放状態では、駆動モータ５への通電を停止しても、バックドア１１はガスストラット１５の作用力で開放位置に維持される。一方、バックドア１１を閉じた状態戻すときは、制御装置によって、駆動モータ５へ供給される電流の極性を切替えることによって、行われる。   Based on the operation of an operating device (not shown), current is supplied from the control device to the drive motor 5 to rotate, and at the same time, current is supplied to the clutch mechanism 6, so that the rotational driving force of the drive motor 5 is applied to the link mechanism 8. Communicated. Then, the back door 11 operates from the closed state indicated by the solid line in FIG. 2 to the open state indicated by the two-dot chain line. In the open state, the back door 11 is maintained in the open position by the acting force of the gas strut 15 even when the energization of the drive motor 5 is stopped. On the other hand, when the back door 11 is returned to the closed state, the control device switches the polarity of the current supplied to the drive motor 5.

また、駆動装置１に電流を供給することなく、バックドア１１を手動で開くときは、クラッチ機構６にも通電されない。このために、係止ギヤ７１は回転自由となっている。したがって、バックドア１１を直接軽い操作力で開くことができる。   Further, when the back door 11 is manually opened without supplying current to the driving device 1, the clutch mechanism 6 is not energized. For this reason, the locking gear 71 is free to rotate. Therefore, the back door 11 can be directly opened with a light operating force.

本実施例では、バックドア１１の開閉に本発明に係る駆動装置１を適用を示したものであるが、必ずしもバックドア１１のみに限定されるものではなく、例えば車両のトランクルームの開閉、または乗降用のドアの開閉作動などにも適応可能であることは明らかである。   In this embodiment, the driving device 1 according to the present invention is applied to the opening and closing of the back door 11. However, the present invention is not necessarily limited to the back door 11. For example, the opening and closing of the trunk room of the vehicle, or getting on and off the vehicle. It is obvious that the present invention can be applied to the opening and closing operation of the door for the vehicle.

本発明の駆動装置を車両のバックドアの開閉装置に適応して装着した状態を示す側面図。The side view which shows the state which mounted | wore with the drive device of this invention in adaptation to the opening / closing apparatus of the back door of a vehicle. 本発明の駆動装置の断面図。Sectional drawing of the drive device of this invention.

符号の説明Explanation of symbols

１ 駆動装置
３ 回転シャフト
５ 駆動モータ
６ クラッチ装置
７ 減速機構
７１ 係止ギヤ
７８ 回転出力部材（出力軸） DESCRIPTION OF SYMBOLS 1 Drive device 3 Rotating shaft 5 Drive motor 6 Clutch device 7 Deceleration mechanism 71 Locking gear 78 Rotation output member (output shaft)

Claims (4)

回転出力部材と、
該回転出力部材に対する駆動力を発生する駆動モータと、
前記駆動モータの回転駆動力を前記回転出力部材に回転数を減速して伝達する減速機構と、
作動時に前記駆動モータの駆動力を前記回転出力部材へ伝達し、非作動時には前記駆動モータから前記回転出力部材への駆動力の伝達を遮断するクラッチ機構とを備える開閉体の駆動装置において、
前記回転出力部材と、前記減速機構と、前記クラッチ機構を駆動モータで駆動される単一の回転シャフト上に配置し支持したことを特徴とする開閉体の駆動装置。 A rotation output member;
A drive motor for generating a driving force for the rotation output member;
A speed reduction mechanism that transmits the rotational driving force of the drive motor to the rotational output member at a reduced rotational speed;
In a drive device for an opening and closing body comprising a clutch mechanism that transmits a driving force of the drive motor to the rotation output member during operation, and interrupts transmission of the driving force from the drive motor to the rotation output member during non-operation,
An opening / closing body drive device, wherein the rotation output member, the speed reduction mechanism, and the clutch mechanism are arranged and supported on a single rotation shaft driven by a drive motor. 請求項１に記載の開閉体の駆動装置において、前記駆動モータ、前記クラッチ機構、前記減速機構及び、前記回転出力部材の順に回転シャフト上に配置して構成された開閉体の駆動装置。 The opening / closing body drive device according to claim 1, wherein the drive motor, the clutch mechanism, the speed reduction mechanism, and the rotation output member are arranged on a rotating shaft in this order. 前記減速機構はサイクロイド減速機構である請求項１又は請求項２に記載の駆動装置。 The drive device according to claim 1, wherein the speed reduction mechanism is a cycloid speed reduction mechanism. 前記サイクロイド減速機構の係止ギヤを前記クラッチ機構によって回転阻止可能に構成した請求項３に記載の駆動装置。
The drive device according to claim 3, wherein a locking gear of the cycloid reduction mechanism is configured to be prevented from rotating by the clutch mechanism.
JP2003316781A 2003-09-09 2003-09-09 Opening/closing body driving device Withdrawn JP2005082019A (en)

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