JP2014098456A - Torque interrupting device - Google Patents

Torque interrupting device Download PDF

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JP2014098456A
JP2014098456A JP2012251136A JP2012251136A JP2014098456A JP 2014098456 A JP2014098456 A JP 2014098456A JP 2012251136 A JP2012251136 A JP 2012251136A JP 2012251136 A JP2012251136 A JP 2012251136A JP 2014098456 A JP2014098456 A JP 2014098456A
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tooth
rotating body
tip
interrupting device
teeth
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JP6158498B2 (en
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Takuto Ogawa
拓人 小川
Shinji Kitaoka
慎治 北岡
Kazuteru Kojima
一輝 小島
Takahiro Midori
高宏 翠
Kyosuke Mori
匡輔 森
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Aisin AI Co Ltd
Aisin Corp
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Aisin Seiki Co Ltd
Aisin AI Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a torque interrupting device which has reduced backlash and facilitates the engagement of engaging clutches.SOLUTION: In this torque interrupting device, a protrusive tooth of at least one rotating body 1 out of first and second rotating bodies 1,2 is a stepwise protrusive tooth 3 that is formed stepwise having substantially two steps so that a dedendum part 32 being a dedendum side becomes larger in tooth thickness than an addendum part 32 being an addendum side. The stepwise protrusive tooth 3 has such engagement-part chamfered faces 33 that a clearance between the addendum part 31 and the dedendum part 32 becomes larger in tooth thickness toward the dedendum side, and/or the tip of a protrusive tooth 21 that is engaged with and disengaged from the stepwise protrusive tooth 3 has tip chamfered faces 213. Tooth thicknesses at addendum sides of the respective protrusive teeth 3, 21 of the first and second rotating bodies 1, 2 have dimensions that allow for the insertion into clearances at the dedendum sides of the opposing protrusive teeth 3, 21.

Description

本発明は、トルク断続装置に関し、特に噛み合いクラッチによるトルク断続装置に関する。   The present invention relates to a torque interrupting device, and more particularly to a torque interrupting device using a meshing clutch.

ドグクラッチなどの噛み合いクラッチに設けられている噛み合い歯（突歯）を有するギヤは、噛み合い歯の入り込みやすさ（飛び込みやすさ）を重視する場合に、各噛み合い歯の隙間を大きくとり、相対回転下での噛み合い歯の入りやすさの向上をはかっている。しかし、噛み合い歯の隙間を大きくすると、噛み合い時のバックラッシュ（周方向の隙間）が増加するため、音やショックの原因になる。その解決方法として、例えば特許文献１に記載されている発明の例が挙げられる。   When gears with meshing teeth (protruding teeth) provided on meshing clutches such as dog clutches are emphasized, the gaps between the meshing teeth are made large and the relative rotation is low. This improves the ease of entering the meshing teeth. However, if the gap between the meshing teeth is increased, backlash (gap in the circumferential direction) at the time of meshing increases, which causes noise and shock. As an example of the solution, an example of the invention described in Patent Document 1 can be given.

特許文献１には、ドグクラッチを入り易くすると共に外れ難くし、且つ強度低下を抑制することを可能とすると共にバックラッシュ増を抑制することを目的として、相対回転可能な回転軸（３）及び歯車（５），（７）相互の回転連動遮断をドグクラッチ（１１），（１３）の対向する突歯（１５），（１７）の係脱により行うトルク断続装置（１）において、ドグクラッチ（１１），（１３）の突歯（１５），（１７）を、周方向所定間隔毎に高低を有するように形成し、突歯（１５），（１７）の噛み合い面に、歯先側から歯元側の肉厚方向内側へ傾斜する傾斜面（３１），（３３）を設けたことを特徴とするトルク断続装置が開示される（括弧内の符号は特許文献１の図３中の符号）。   Patent Document 1 discloses that a rotation shaft (3) and a gear that can be rotated relative to each other for the purpose of making it easy to engage a dog clutch, making it difficult to disengage, suppressing a decrease in strength, and suppressing an increase in backlash. (5), (7) In the torque interrupting device (1) which performs mutual interlocking of rotational interlocking by engaging / disengaging the opposing teeth (15), (17) of the dog clutch (11), (13), the dog clutch (11), The protruding teeth (15) and (17) of (13) are formed so as to have a height at every predetermined interval in the circumferential direction, and the meat on the meshing surface of the protruding teeth (15) and (17) from the tooth tip side to the tooth base side is formed. Disclosed is a torque interrupting device characterized by providing inclined surfaces (31), (33) that are inclined inward in the thickness direction (reference numerals in parentheses are reference numerals in FIG. 3 of Patent Document 1).

特開２００５−３０８１４２号公報（特許請求の範囲、００１２〜００１８段落、図３など）Japanese Patent Laying-Open No. 2005-308142 (claims, paragraphs 0012 to 0018, FIG. 3, etc.)

しかしながら、特許文献１に開示のトルク断続装置では充分なバックラッシュの抑制が実現できなかった。   However, the torque interrupting device disclosed in Patent Document 1 cannot sufficiently suppress backlash.

本発明は、上記状況に鑑みてなされたもので、バックラッシュが抑制され、噛み合いクラッチの係合を容易にするトルク断続装置を提供することを解決すべき課題とする。   This invention is made | formed in view of the said situation, and makes it the problem which should be solved to provide the torque interruption device which backlash is suppressed and the engagement of a meshing clutch becomes easy.

上記課題を解決するための（１）の発明の構成上の特徴は、相対回転可能な第１回転体と第２回転体との相互の回転連動遮断を噛み合いクラッチの対向する突歯の係脱により行うトルク断続装置であって、
前記第１及び第２回転体のうちの少なくとも一方の回転体の前記突歯はその歯厚が歯先側である歯先部より歯元側である歯元部の方が歯厚が大きくなるように略２段階になる階段状に形成された階段状突歯であり、
前記階段状突歯はその歯先部と歯元部との間が歯元側に向けて歯厚が大きくなるような噛み合い部チャンファ面をもつか、及び／又は、その階段状突歯に係脱する突歯の先端部が先端部チャンファ面をもち、
前記第１及び第２回転体のそれぞれの突歯の歯先側の歯厚が、それぞれ対向する突歯の歯元側の間に挿入可能な大きさである。 The structural feature of the invention of (1) for solving the above-mentioned problem is that the first rotary body and the second rotary body which can be rotated relative to each other are engaged with each other by interlocking and disengaging the opposing teeth of the clutch. A torque interrupting device to perform,
The protruding tooth of at least one of the first and second rotating bodies has a tooth thickness that is greater at the tooth root portion than the tooth tip portion at the tooth tip side. Are stepped teeth formed in a staircase shape having approximately two steps,
The stepped protrusion has a meshing portion chamfer surface in which the thickness between the tooth tip portion and the tooth root portion increases toward the tooth base side and / or engages / disengages with the stepped tooth protrusion. The tip of the tooth has a chamfer surface at the tip,
The tooth thickness on the tooth tip side of each of the first and second rotating bodies is such that the tooth thickness can be inserted between the tooth base sides of the facing tooth teeth.

上記（１）の発明は以下に記す（２）〜（４）の構成のうちの１つ以上を任意に加えて採用できる。   The invention of the above (1) can be adopted by arbitrarily adding one or more of the configurations of (2) to (4) described below.

（２）の発明の特徴は、前記第１及び第２回転体のそれぞれの突歯が噛み合ったときに相補的な形状であることである。   A feature of the invention of (2) is that it has a complementary shape when the respective projecting teeth of the first and second rotating bodies mesh with each other.

（３）の発明の特徴は、前記階段状突歯が周方向の一面側でのみ階段状になっていることである。   A feature of the invention of (3) is that the stepped protrusions are stepped only on one surface side in the circumferential direction.

（４）の発明の特徴は、前記第１及び第２回転体の突歯が双方共に前記階段状突歯であることである。   A feature of the invention of (4) is that both the projecting teeth of the first and second rotating bodies are the stepped projecting teeth.

上記課題を解決するための（５）の発明の構成上の特徴は、相対回転可能な第１回転体と第２回転体との相互の回転連動遮断を噛み合いクラッチの対向する突歯の係脱により行うトルク断続装置であって、
前記第１及び第２回転体のうちの少なくとも一方の回転体の前記突歯はその先端が周方向に非対称且つ斜めになっており、
前記第１及び第２回転体のそれぞれの突歯の歯先の歯先部は、前記歯先部が係合する前記突歯の歯元の歯元部とほぼ隙間なく係合することである。 The structural feature of the invention of (5) for solving the above-described problem is that the first rotary body and the second rotary body that can rotate relative to each other are engaged with each other by interlocking and disengaging the opposing teeth of the clutch. A torque interrupting device to perform,
The tip of the projecting tooth of at least one of the first and second rotating bodies has a tip that is asymmetric and oblique in the circumferential direction,
The tooth tip portion of the tooth tip of each of the first and second rotating bodies is engaged with the tooth root portion of the tooth base of the projecting tooth with which the tooth tip portion is engaged with substantially no gap.

（１）の発明においては、第１及び第２回転体の少なくとも一方の回転体の突歯が歯元の歯厚が大きくなるように略２段階になる階段状に形成された階段状突歯である。歯先部が歯元部分よりも歯厚が小さいことで、隣接する歯との隙間が歯先部は歯元部より広くなる。そのため、歯先部に対向する突歯が進入し（飛び込み）やすい。そして、階段状突歯は歯先部と歯元部との間の歯元側に向けて歯厚が大きくなるような噛み合い部チャンファ面を、その階段状突歯に係脱する突歯は先端部に先端部チャンファ面を、少なくとも噛み合うどちらかの歯が有する。そのため、歯先部に対向する突歯の先端部が進入後、チャンファ面によって進入した突歯の歯先部が階段状突歯の歯元部へと導かれやすい。よって（１）の発明によれば、噛み合いクラッチが相対回転下でも突歯が進入しやすく、進入後は先端部が歯元部に向かって導きかれやすいため、容易に係合することができる。そのために本願発明の構成を採用しない場合と比べて、歯元部と歯元部との隙間が小さくても（例えば、先端部チャンファ面や噛み合い部チャンファ面の傾斜角度によっては、進入する突歯の先端部の歯厚に対してかなり余裕のある大きさでなく、ほぼ同じであっても容易に噛み合うことができる場合がある）、上記したように突歯の先端部が容易に歯元部と歯元部との間に進入することができので、階段状突歯の歯元部と、係合する突歯の先端部との隙間（バックラッシュ）が抑制できる。   In the invention of (1), the projecting teeth of at least one of the first and second rotating bodies are stepped projecting teeth formed in a stepped shape having approximately two steps so that the tooth thickness of the tooth base is increased. . Since the tooth tip portion has a smaller tooth thickness than the tooth root portion, a gap between adjacent teeth becomes wider at the tooth tip portion than at the tooth root portion. Therefore, the protruding teeth facing the tooth tip portion are likely to enter (jump). Then, the stepped protrusion has a meshing portion chamfer surface that increases the tooth thickness toward the tooth base side between the tooth tip portion and the tooth root portion, and the tooth protruding and disengaging from the stepped tooth protrudes at the tip portion. At least one of the meshing teeth has the partial chamfer surface. For this reason, after the tip portion of the tooth facing the tooth tip portion has entered, the tooth tip portion of the tooth that has entered by the chamfer surface is easily guided to the root portion of the stepped tooth. Therefore, according to the invention of (1), the projecting teeth can easily enter even when the meshing clutch is under relative rotation, and after the approach, the tip end portion is easily guided toward the tooth base portion, and therefore can be easily engaged. Therefore, compared with the case where the configuration of the present invention is not adopted, even if the gap between the tooth root portion and the tooth root portion is small (for example, depending on the inclination angle of the tip chamfer surface or the meshing portion chamfer surface, The tip of the projecting tooth can easily be engaged with the tooth base and the tooth as described above. Since it can approach between base parts, the crevice (backlash) between the tooth base part of a step-like projecting tooth and the tip part of the projecting tooth to engage can be controlled.

（２）の発明によれば、第１及び第２回転体のそれぞれの突歯が噛み合ったときに相補的な形状であるため、ガタ無く係合でき、バックラッシュが抑制される。   According to invention of (2), since it is a complementary shape when each protrusion tooth of a 1st and 2nd rotary body meshes | engages, it can engage without backlash and a backlash is suppressed.

（３）の発明によれば、回転方向が一方向で係合する面が周方向の一面側である場合、階段状突歯が周方向の一面側でのみ階段状になっていれば、噛み合いクラッチが相対回転下で容易に係合することができ、バックラッシュが抑制される。また、（３）の発明によれば、加工が一面側でよいため、加工の時間や費用を抑制できる。   According to the invention of (3), when the surface that is engaged in one direction of rotation is the one surface side in the circumferential direction, the meshing clutch if the stepped protrusion is stepped only on one surface side in the circumferential direction. Can be easily engaged under relative rotation, and backlash is suppressed. In addition, according to the invention of (3), since processing may be performed on one side, processing time and cost can be suppressed.

（４）の発明によれば、第１及び第２回転体の突歯が双方共に階段状突歯であるため、噛み合いクラッチが相対回転下でより容易に係合することができる。   According to the invention of (4), since the projecting teeth of the first and second rotating bodies are both stepped projecting teeth, the meshing clutch can be more easily engaged under relative rotation.

（５）の発明においては、第１及び第２回転体のうちの少なくとも一方の回転体の突歯がその先端が周方向に非対称且つ斜めになっているため、隣接する歯との隙間が歯先部は広く確保することが可能になる。そのため、歯先部に対向する突歯が進入し（飛び込み）やすい。また、斜めの形状に沿って、進入後の突歯の移動が促され、係合位置に移動しやすいため、噛み合いクラッチの係合が容易である。そして、突歯の先端が周方向に非対称且つ斜めになっているため、歯元に向かって歯厚を広げることで、歯元部と歯元部との間を狭くすることができる。歯元部と歯元部との間を狭くすることができれば、係合する歯先部と歯元部との隙間（バックラッシュ）が抑制できる。よって、（５）の発明によれば、相対回転下でもバックラッシュが抑制され、噛み合いクラッチの係合が容易にできる。   In the invention of (5), since the tip of the rotating tooth of at least one of the first and second rotating bodies has an asymmetrical and slanting tip in the circumferential direction, the gap between adjacent teeth is a tooth tip. The section can be secured widely. Therefore, the protruding teeth facing the tooth tip portion are likely to enter (jump). Further, since the movement of the tooth after the entry is promoted along the oblique shape and easily moves to the engagement position, the engagement clutch can be easily engaged. And since the front-end | tip of a projecting tooth is asymmetrical and slanting in the circumferential direction, between a tooth root part and a tooth root part can be narrowed by expanding tooth thickness toward a tooth root. If the gap between the tooth root portion and the tooth root portion can be narrowed, a gap (backlash) between the tooth tip portion and the tooth root portion to be engaged can be suppressed. Therefore, according to the invention of (5), backlash is suppressed even under relative rotation, and the engagement clutch can be easily engaged.

実施形態１のトルク断続装置の第１回転体１の１つの階段状突歯３の断面図である。3 is a cross-sectional view of one stepped tooth 3 of the first rotating body 1 of the torque interrupting device of Embodiment 1. FIG. 実施形態１のトルク断続装置の第１回転体１の隣接している階段状突歯３の断面図である。It is sectional drawing of the step-like projecting tooth 3 which the 1st rotary body 1 of the torque interruption apparatus of Embodiment 1 adjoins. 実施形態１のトルク断続装置の第１回転体１及び第２回転体２の一部展開断面図である。3 is a partially developed cross-sectional view of a first rotating body 1 and a second rotating body 2 of the torque interrupting device of Embodiment 1. FIG. 実施形態１のトルク断続装置の第１回転体１及び第２回転体２が噛み合う途中の一部展開断面図である。FIG. 3 is a partially developed cross-sectional view of the torque interrupting device of the first embodiment in the middle of meshing of the first rotating body 1 and the second rotating body 2. 実施形態１のトルク断続装置の第１回転体１及び第２回転体２が噛み合う途中の一部展開断面図である。FIG. 3 is a partially developed cross-sectional view of the torque interrupting device of the first embodiment in the middle of meshing of the first rotating body 1 and the second rotating body 2. 実施形態１のトルク断続装置の第１回転体１及び第２回転体２が噛み合う途中の一部展開断面図である。FIG. 3 is a partially developed cross-sectional view of the torque interrupting device of the first embodiment in the middle of meshing of the first rotating body 1 and the second rotating body 2. 実施形態１のトルク断続装置の第１回転体１及び第２回転体２が噛み合っている一部展開断面図である。FIG. 3 is a partially developed cross-sectional view in which the first rotating body 1 and the second rotating body 2 of the torque interrupting device of Embodiment 1 are engaged with each other. 実施形態２のトルク断続装置の第１回転体１及び第２回転体２の一部展開断面図である。FIG. 4 is a partially developed cross-sectional view of a first rotating body 1 and a second rotating body 2 of a torque interrupting device of Embodiment 2. 実施形態３のトルク断続装置の第１回転体１及び第２回転体４の一部展開断面図である。FIG. 5 is a partially developed cross-sectional view of a first rotating body 1 and a second rotating body 4 of a torque interrupting device of Embodiment 3. 実施形態３のトルク断続装置の第１回転体１及び第２回転体４が噛み合っている一部展開断面図である。It is a partially expanded sectional view in which the 1st rotary body 1 and the 2nd rotary body 4 of the torque interrupting device of Embodiment 3 are meshing. 実施形態４のトルク断続装置の第１及び／又は第２回転体の１つの階段状突歯５の断面図である。It is sectional drawing of the one step-shaped protrusion 5 of the 1st and / or 2nd rotary body of the torque interruption apparatus of Embodiment 4. 実施形態５のトルク断続装置の第１及び／又は第２回転体の１つの階段状突歯６の断面図である。FIG. 10 is a cross-sectional view of one stepped tooth 6 of the first and / or second rotating body of the torque interrupting device of Embodiment 5. 実施形態６のトルク断続装置の第１回転体７及び第２回転体８が噛み合う途中の一部展開断面図である。FIG. 10 is a partially developed cross-sectional view in the middle of meshing of a first rotating body 7 and a second rotating body 8 of a torque interrupting device of a sixth embodiment. 実施形態７のトルク断続装置の第１回転体９及び第２回転体８が噛み合う途中の一部展開断面図である。FIG. 10 is a partially developed cross-sectional view in the middle of meshing of a first rotating body 9 and a second rotating body 8 of a torque interrupting device of a seventh embodiment.

本発明の代表的な実施形態を図１〜図１４を参照して説明する。   A representative embodiment of the present invention will be described with reference to FIGS.

（実施形態１）
本実施形態１のトルク断続装置の第１回転体１の階段状突歯３は、図１に示すように、歯厚が歯先側である飛び込み部（歯先部）３１より歯元側である噛み合い部（歯元部）３２の方が相対的に大きく、２段の階段状に形成されている。飛び込み部３１は、歯先側から歯元側に向けて歯厚が小さくなるように先太に形成された側面３１ａをもち、歯厚が対向する突歯の歯元側の間に挿入可能な大きさである。噛み合い部３２は、歯先側から歯元側に向けて歯厚が小さくなるように先太に形成された側面３２ｂをもつ。更に、階段状突歯３は、噛み合い部チャンファ面３３と先端部チャンファ面３４とを有する。噛み合い部チャンファ面３３は飛び込み部３１と噛み合い部３２との間が歯元側に向けて歯厚が大きくなるような面である。先端部チャンファ面３４は最先端から歯元に向かう方向に歯厚が大きくなるような面である。 (Embodiment 1)
As shown in FIG. 1, the stepped protrusion 3 of the first rotating body 1 of the torque interrupting device of Embodiment 1 is on the tooth root side from the diving portion (tooth tip portion) 31 whose tooth thickness is on the tooth tip side. The meshing part (tooth base part) 32 is relatively large and is formed in a two-step shape. The diving portion 31 has a side surface 31a formed with a thick tip so that the tooth thickness decreases from the tooth tip side toward the tooth base side, and is large enough to be inserted between the tooth root sides of the protruding teeth facing each other. That's it. The meshing portion 32 has a side surface 32b formed to have a thick tip so that the tooth thickness decreases from the tooth tip side toward the tooth base side. Further, the stepped protrusion 3 has a meshing portion chamfer surface 33 and a tip chamfer surface 34. The meshing portion chamfer surface 33 is a surface where the tooth thickness increases between the diving portion 31 and the meshing portion 32 toward the tooth base side. The front end chamfer surface 34 is a surface in which the tooth thickness increases in the direction from the most distal end toward the tooth base.

本実施形態１のトルク断続装置の第１回転体１は、図２に示すように、階段状突歯３の隣接する間隔が、飛び込み部３１間と噛み合い部３２間とで異なる。飛び込み部３１の飛び込み部間隔ｃ１は、噛み合い部３２の噛み合い部間隔ｃ２より広い。なお、飛び込み部間隔ｃ１及び噛み合い部間隔ｃ２は、歯厚の一番大きなところ、つまり間隔が一番狭いところを基準としている。   As for the 1st rotary body 1 of the torque interruption apparatus of this Embodiment 1, the space | interval which the step-shaped protrusion 3 adjoins differs between the diving parts 31 and between the meshing parts 32, as shown in FIG. The jumping portion interval c1 of the jumping portion 31 is wider than the engagement portion interval c2 of the engagement portion 32. The diving portion interval c1 and the meshing portion interval c2 are based on the largest tooth thickness, that is, the smallest interval.

本実施形態１のトルク断続装置は、図３に示すように、上記した階段状突歯３の第１回転体１と、階段状ではない突歯２１の第２回転体２と、を有する。第１回転体１と第２回転体２とはそれらの軸線方向に相対的に移動して近接することにより両者が噛み合い、トルクの伝達が可能になる。第１回転体１と第２回転体２とは両者共に軸線方向に移動する構成であっても良いし、何れか一方のみが移動する構成であっても良い。   As shown in FIG. 3, the torque interrupting device according to the first embodiment includes the first rotating body 1 of the stepped protrusion 3 described above and the second rotating body 2 of the protruding tooth 21 that is not stepped. The first rotator 1 and the second rotator 2 are moved relatively close to each other in the axial direction thereof, thereby being engaged with each other and transmitting torque. The first rotating body 1 and the second rotating body 2 may both be configured to move in the axial direction, or may be configured to move only one of them.

第２回転体２としては、例えば車両の変速機で用いられるスリーブなどであり、歯元部２１２の歯厚が歯先部２１１の歯厚ｗ１より大きくない（図面ではほぼ同じである）。そして、第２回転体２は、歯先部２１１に、最先端から歯元側に向けて歯厚が大きくなるように形成された先端部チャンファ面２１３を有する。第１回転体１は、隣接している階段状突歯３の飛び込み部３１の飛び込み部間隔ｃ１が噛み合い部３２の噛み合い部間隔ｃ２より広い。本明細書では、第１回転体１の噛み合い部間隔ｃ２と、第２回転体２の歯先部２１１の歯厚ｗ１との関係が、ｗ１がｃ２・ｘ（ｘは０．５以上、更には、０．６以上、０．７以上、０．８以上、０．９以上が例示できる）以上であることを、ほぼ隙間なく係合できるとする。なお、ｘは大きいほどバックラッシュを抑制するのに好ましく、小さいほど容易に係合できるため進入をしやすくするのに好ましい。   The second rotating body 2 is, for example, a sleeve used in a transmission of a vehicle, and the tooth thickness of the tooth base portion 212 is not larger than the tooth thickness w1 of the tooth tip portion 211 (substantially the same in the drawing). And the 2nd rotary body 2 has the front-end | tip part chamfer surface 213 formed in the tooth tip part 211 so that tooth thickness might become large toward the tooth root side from the most distal end. In the first rotating body 1, the jumping part interval c <b> 1 of the jumping part 31 of the adjacent stepped protrusion 3 is wider than the meshing part interval c <b> 2 of the meshing part 32. In this specification, the relationship between the meshing portion interval c2 of the first rotating body 1 and the tooth thickness w1 of the tooth tip portion 211 of the second rotating body 2 is such that w1 is c2 · x (x is 0.5 or more, Is 0.6 or more, 0.7 or more, 0.8 or more, and 0.9 or more). A larger x is preferable for suppressing backlash, and a smaller x is preferable for facilitating entry because it can be easily engaged.

第１回転体１及び第２回転体２は、それぞれ同回転方向Ａで相対回転している。そして、第２回転体２は第１回転体１に係合するために、接近するように軸線方向Ｂで移動する。第２回転体２は図４に示すように、その突歯２１の歯先部２１１が第１回転体１の階段状突歯３の飛び込み部３１と飛び込み部３１との間に進入する（飛び込む）。突歯２１が飛び込み部３１と飛び込み部３１との間に進入後、第２回転体２の歯先部２１１の側面２１１ｃが、図５に示すように、回転体１の飛び込み部３１の側面３１ａに当接する。当接した第１回転体１と第２回転体２とは、先太形状である歯先の側面で当接しているので、第２回転体２が軸線方向Ｂに更に移動する。そして図６に示すように、第２回転体２の歯先部２１１の先端部チャンファ面２１３が第１回転体１の噛み合い部チャンファ面３３に当接し、第２回転体２は面に沿って更に軸線方向Ｂに移動する。結果、図７に示すように、第２回転体２の突歯２１の歯先部２１１は、第１回転体１の階段状突歯３の噛み合い部３２と噛み合い部３２との間に進入する。そして、歯先部２１１の側面２１１ｃが第１回転体１の噛み合い部３２の側面３２ｂに当接し、第１回転体１と第２回転体２とが係合する。第２回転体２の歯先部２１１は、図７において回転方向Ａの後方側の側面２１１ｃが第１回転体２の階段状突歯３の歯元部３２の側面３２ｂに当接し、回転方向Ａの前方側の側面２１１ｃは、当接しているのとは別の階段状突歯３の噛み合い部３２の側面３２ｂとの間に隙間、バックラッシュｄがある。   The first rotating body 1 and the second rotating body 2 are relatively rotated in the same rotation direction A, respectively. Then, in order to engage the first rotating body 1, the second rotating body 2 moves in the axial direction B so as to approach. As shown in FIG. 4, the tooth tip portion 211 of the projecting tooth 21 of the second rotating body 2 enters between the projecting portion 31 and the projecting portion 31 of the stepped projecting tooth 3 of the first rotating body 1. After the projecting tooth 21 enters between the diving portion 31 and the diving portion 31, the side surface 211c of the tooth tip portion 211 of the second rotating body 2 is brought into contact with the side surface 31a of the diving portion 31 of the rotating body 1 as shown in FIG. Abut. Since the first rotating body 1 and the second rotating body 2 that are in contact with each other are in contact with the side surface of the tooth tip having a thick tip shape, the second rotating body 2 further moves in the axial direction B. And as shown in FIG. 6, the front-end | tip part chamfer surface 213 of the tooth tip part 211 of the 2nd rotary body 2 contact | abuts to the meshing part chamfer surface 33 of the 1st rotary body 1, and the 2nd rotary body 2 follows a surface. Further, it moves in the axial direction B. As a result, as shown in FIG. 7, the tooth tip portion 211 of the projecting tooth 21 of the second rotating body 2 enters between the meshing portion 32 and the meshing portion 32 of the stepped projecting tooth 3 of the first rotating body 1. Then, the side surface 211c of the tooth tip portion 211 comes into contact with the side surface 32b of the meshing portion 32 of the first rotating body 1, and the first rotating body 1 and the second rotating body 2 are engaged. In the tooth tip portion 211 of the second rotating body 2, the side surface 211 c on the rear side in the rotation direction A in FIG. 7 abuts the side surface 32 b of the tooth base portion 32 of the stepped protrusion 3 of the first rotating body 2. There is a gap and a backlash d between the front side surface 211c and the side surface 32b of the meshing portion 32 of the stepped tooth 3 different from the abutting side surface 211c.

本実施形態１のトルク断続装置は、第１回転体１が歯元の歯厚が大きくなるように２段階の階段状に形成された階段状突歯３である。飛び込み部３１が噛み合い部３２よりも歯厚が小さいことで、隣接する歯との飛び込み部３１の飛び込み部間隔ｃ１が、隣接する歯との噛み合い部３２の噛み合い間隔ｃ２より広い。そのため、飛び込み部３１に対向する第２回転体２の突歯２１が進入し（飛び込み）やすい。   The torque interrupting device of Embodiment 1 is a stepped tooth 3 formed in a two-step staircase shape so that the tooth thickness of the tooth base of the first rotating body 1 is increased. Since the jumping portion 31 has a smaller tooth thickness than the meshing portion 32, the jumping portion interval c1 of the jumping portion 31 with the adjacent tooth is wider than the meshing interval c2 of the meshing portion 32 with the adjacent tooth. Therefore, the protruding teeth 21 of the second rotating body 2 facing the diving portion 31 are likely to enter (jump).

そして、第１回転体１の階段状突歯３は飛び込み部３１と噛み合い部３２との間の歯元側に向けて歯厚が大きくなるような噛み合い部チャンファ面３３を、第２回転体２の突歯２１は歯先部２１１に先端部チャンファ面２１３を有する。そのため、第１回転体１の階段状突歯３の飛び込み部３１に、第２回転体２の突歯２１の歯先部２１１が進入後、チャンファ面（３３、２１３）によって、第２回転体２の突歯２１の歯先部２１１が階段状突歯３の飛び込み部３１へと導かれやすい。   Then, the stepped tooth 3 of the first rotating body 1 has a meshing portion chamfer surface 33 such that the tooth thickness increases toward the tooth base side between the diving portion 31 and the meshing portion 32 of the second rotating body 2. The projecting tooth 21 has a tip chamfer surface 213 at the tooth tip 211. Therefore, after the tooth tip portion 211 of the tooth 21 of the second rotating body 2 enters the diving portion 31 of the stepped tooth 3 of the first rotating body 1, the chamfer surface (33, 213) causes the second rotating body 2 to The tooth tip portion 211 of the projecting tooth 21 is easily guided to the diving portion 31 of the stepped projecting tooth 3.

よって本実施形態１のトルク断続装置によれば、噛み合う第１回転体１と第２回転体２とが相対回転下でも突歯２１が進入しやすく、進入後は先端部２１１が第１回転体１の噛み合い部３２に向かって導きかれやすいため、容易に係合することができる。更に、噛み合い部３２と噛み合い部３２との隙間である噛み合い部間隔ｃ２が、進入する突歯の先端部の歯厚に対してほぼ同じであっても、突歯２１の先端部２１１が容易に噛み合い部３２と噛み合い部３２との間に進入することができるため、階段状突歯３の飛び込み部３１と、係合する突歯２１の先端部２１１との隙間（バックラッシュｄ）が抑制できる。   Therefore, according to the torque interrupting device of the first embodiment, the teeth 21 can easily enter even when the first rotating body 1 and the second rotating body 2 that are engaged with each other are under relative rotation. Since it is easy to be guided toward the meshing portion 32, it can be easily engaged. Furthermore, even if the meshing portion interval c2 that is the gap between the meshing portion 32 and the meshing portion 32 is substantially the same as the tooth thickness of the tip portion of the projecting tooth, the tip portion 211 of the projecting tooth 21 is easily meshed with the meshing portion 32. 32 and the meshing part 32 can be entered, so that a gap (backlash d) between the jumping part 31 of the stepped protrusion 3 and the tip part 211 of the engaging tooth 21 can be suppressed.

また、本実施形態１のトルク断続装置は、階段状突歯３の噛み合い部３２の側面３２ｂと、当接する突歯２１の先端部２１１の側面２１１ｃとが、噛み合った時に相補的な形状であるため、ガタが少なく係合できるため、バックラッシュが抑制できる。   Further, since the torque interrupting device of the first embodiment has a complementary shape when the side surface 32b of the meshing portion 32 of the stepped projecting tooth 3 and the side surface 211c of the tip portion 211 of the projecting tooth 21 to be in contact with each other, Since backlash can be engaged with little backlash, backlash can be suppressed.

（実施形態２）
本実施形態２のトルク断続装置は、図８に示すように、第１回転体１と第２回転体２とが入れ替わっており、第１回転体１が第２回転体２に対して接近するように、軸線方向Ｂに移動する構成である。よって、基本的な構成は実施形態１のトルク断続装置と同じである。 (Embodiment 2)
As shown in FIG. 8, in the torque interrupting device of the second embodiment, the first rotating body 1 and the second rotating body 2 are interchanged, and the first rotating body 1 approaches the second rotating body 2. Thus, it is the structure which moves to the axial direction B. Therefore, the basic configuration is the same as the torque interrupting device of the first embodiment.

実施形態２のトルク断続装置は、突歯２１と突歯２１との間に進入するのが階段状突歯３の飛び込み部３１である。突歯２１の先端部２１１と先端部２１１との飛び込み部間隔ｃ３は、階段状突歯３の噛み合い部３２の歯厚を基準にしているため、飛び込み部３１の歯厚に対して飛び込み部間隔ｃ３は十分広くなり、飛び込みやすい。なお、噛み合い部間隔ｃ４は、第１回転体１の噛み合い部３２の歯厚が一番大きな部分が通ることができるだけの間隔があるため、飛び込み部３１が進入するのに充分な間隔である。   In the torque interrupting device of the second embodiment, it is the diving portion 31 of the stepped tooth 3 that enters between the tooth 21 and the tooth 21. The jumping portion interval c3 between the tip portion 211 and the tip portion 211 of the projecting tooth 21 is based on the tooth thickness of the meshing portion 32 of the stepped projecting tooth 3, so the jumping portion interval c3 is relative to the tooth thickness of the jumping portion 31. It's wide enough and easy to jump in. Note that the engagement portion interval c4 is a sufficient interval for the diving portion 31 to enter because there is an interval that allows the portion with the largest tooth thickness of the engagement portion 32 of the first rotating body 1 to pass.

よって、階段状突歯３を備える第１回転体１が、階段状突歯３を備えない第２回転体２に対して接近して係合する構成であっても、基本的な作用効果は実施形態１のトルク断続装置と同じである。   Therefore, even if it is the structure which the 1st rotary body 1 provided with the step-shaped protrusion 3 approaches and engages with the 2nd rotary body 2 which does not include the step-shaped protruded tooth 3, a basic effect is embodiment. 1 is the same as the torque interrupting device.

（実施形態３）
本実施形態３のトルク断続装置は、図９に示すように、第１回転体１及び第２回転体４の両方が実施形態１のトルク断続装置の第１回転体１と同様の階段状突歯３を備える。第１回転体１と第２回転体４とは、それぞれ同回転方向Ａで相対回転している。そして、第２回転体４は第１回転体１に係合するために、接近するように軸線方向Ｂで移動する。第１回転体１と第２回転体４とが係合する様子は、実施形態１のトルク断続装置で図４〜図７を用いて説明したのと同じである。 (Embodiment 3)
As shown in FIG. 9, the torque interrupting device according to the third embodiment is configured such that both the first rotating body 1 and the second rotating body 4 are stepped projecting teeth similar to the first rotating body 1 of the torque interrupting device according to the first embodiment. 3 is provided. The first rotating body 1 and the second rotating body 4 are relatively rotated in the same rotation direction A, respectively. Then, in order to engage the first rotating body 1, the second rotating body 4 moves in the axial direction B so as to approach. The manner in which the first rotating body 1 and the second rotating body 4 are engaged is the same as that described with reference to FIGS. 4 to 7 in the torque interrupting device of the first embodiment.

実施形態３のトルク断続装置は、実施形態１のトルク断続装置の作用効果を有し、更に第１回転体１及び第２回転体４の両方が階段状突歯３であるため、飛び込み部３１と飛び込み部３１との間に飛び込みやすい。その上、相補的な形状となるため、図１０に示すように係合の際は互いの飛び込み部３１と噛み合い部３２との側面が当接し、二箇所の側面部分Ｄ、Ｅでの係合を確保できる。従って、噛み合い必要長さを稼ぐことができるため、第１回転体１及び第２回転体４の軸線方向の長さ（先太部分の側面３１ａ、３２ｂの長さ）を短縮することができる。   The torque interrupting device of the third embodiment has the same effect as the torque interrupting device of the first embodiment. Furthermore, since both the first rotating body 1 and the second rotating body 4 are stepped projecting teeth 3, It is easy to jump into the dive part 31. In addition, since the shape is complementary, as shown in FIG. 10, the side surfaces of the dive portion 31 and the meshing portion 32 come into contact with each other at the time of engagement, and engagement at the two side portions D and E occurs. Can be secured. Therefore, since the length required for meshing can be obtained, the length in the axial direction of the first rotating body 1 and the second rotating body 4 (the length of the side surfaces 31a and 32b of the thick portion) can be shortened.

（実施形態４）
本実施形態４のトルク断続装置で用いられる第１及び／又は第２回転体の階段状突歯５は、図１１に示すように、先端部チャンファ面５４の角度αと噛み合い部チャンファ面５３の角度βとが異なる。対向する回転体としては、先端部チャンファ面５４の角度αと噛み合い部チャンファ面５３の角度βとが同じである階段状突歯３や、階段状に形成されていない突歯２１を備える回転体の何れでも良い。 (Embodiment 4)
As shown in FIG. 11, the stepped teeth 5 of the first and / or second rotating body used in the torque interrupting device of the fourth embodiment have an angle α of the tip chamfer surface 54 and an angle of the meshing portion chamfer surface 53. Different from β. As the rotating body facing each other, any of the stepped tooth 3 having the same angle α of the front end chamfer surface 54 and the angle β of the meshing portion chamfer surface 53, or a rotating body provided with the tooth 21 not formed in a stepped shape. But it ’s okay.

（実施形態５）
本実施形態５のトルク断続装置で用いられる第１及び／又は第２回転体の階段状突歯６は、図１２に示すように、全ての角が丸く成形されている。飛び込み部６１の最先端６０、先端部チャンファ面６４と飛び込み部６１の側面６１ａとの間の角、飛び込み部６１の側面６１ａと噛み合い部チャンファ面６３との間の角、噛み合い部チャンファ面６３と噛み合い部６２の側面６２ｂとの間の角が丸い。このような形状を採用することで、トルク断続装置で用いられる回転体は、当接する際の摩擦が抑制され、また摩耗が抑制される。 (Embodiment 5)
As shown in FIG. 12, the stepped teeth 6 of the first and / or second rotating body used in the torque interrupting device of Embodiment 5 are formed so that all corners are rounded. The leading edge 60 of the dive portion 61, the angle between the tip chamfer surface 64 and the side surface 61a of the dive portion 61, the angle between the side surface 61a of the dive portion 61 and the meshing portion chamfer surface 63, and the meshing portion chamfer surface 63 A corner between the side surface 62b of the meshing portion 62 is round. By adopting such a shape, the rotating body used in the torque interrupting device suppresses friction at the time of contact and also suppresses wear.

（実施形態６）
本実施形態６のトルク断続装置で用いられる第１回転体７は、図１３に示すように、突歯７１の飛び込み部７１１が周方向に非対称であり、更に斜めに形成されている。飛び込み部７１１の一方の側面７１１ａと他方の側面７１１ｂとは傾斜角度も長さも異なる。そして、噛み合い部７１２も周方向に非対称であり、斜めに形成されている。噛み合い部７１２の一方の側面７１２ａと他方の側面７１２ｂとは傾斜角度も長さも異なる。第２回転体８は、その突歯８１が第１回転体７の突歯７１と形状が同じであり、周方向で反対である。つまり、係合する際は、同じ傾斜角の側面同士が当接する。第２回転体８の突歯８１の飛び込み部８１１が第１回転体７の突歯７１の飛び込み部７１１と飛び込み部７１１との間に飛び込んできた際は、第２回転体８の飛び込み部８１１の一方の側面８１１ａと第１回転体７の飛び込み部７１１の一方の側面７１１ａとが当接するか、第２回転体８の飛び込み部８１１の他方の側面８１１ｂと第１回転体７の飛び込み部７１１の他方の側面７１１ｂとが当接する。第２回転体８の突歯８１が軸線方向Ｂに更に移動して、第１回転体７と第２回転体８とが係合する際は、第２回転体８の噛み合い部８１２の一方の側面８１２ａと第１回転体７の噛み合い部７１２の一方の側面７１２ａとが当接するか、第２回転体８の噛み合い部８１２の他方の側面８１２ｂと第１回転体７の噛み合い部８１２の他方の側面７１２ｂとが当接する。 (Embodiment 6)
As shown in FIG. 13, in the first rotating body 7 used in the torque interrupting device of Embodiment 6, the diving portion 711 of the projecting tooth 71 is asymmetric in the circumferential direction, and is further formed obliquely. The one side surface 711a and the other side surface 711b of the diving portion 711 are different in inclination angle and length. The meshing portion 712 is also asymmetric in the circumferential direction and is formed obliquely. One side surface 712a and the other side surface 712b of the meshing portion 712 are different in inclination angle and length. The second rotating body 8 has the same protrusion 81 as the protrusion 71 of the first rotating body 7, and is opposite in the circumferential direction. That is, when engaging, the side surfaces having the same inclination angle come into contact with each other. When the diving portion 811 of the protruding tooth 81 of the second rotating body 8 has jumped between the diving portion 711 and the diving portion 711 of the protruding tooth 71 of the first rotating body 7, one of the diving portions 811 of the second rotating body 8 The side surface 811a of the first rotating body 7 is in contact with one side surface 711a of the jumping portion 711 of the first rotating body 7, or the other side surface 811b of the jumping portion 811 of the second rotating body 8 and the other of the jumping portion 711 of the first rotating body 7 The side surface 711b contacts. When the protruding tooth 81 of the second rotating body 8 further moves in the axial direction B and the first rotating body 7 and the second rotating body 8 are engaged, one side surface of the meshing portion 812 of the second rotating body 8. 812a abuts one side surface 712a of the meshing portion 712 of the first rotating body 7, or the other side surface 812b of the meshing portion 812 of the second rotating body 8 and the other side surface of the meshing portion 812 of the first rotating body 7. 712b contacts.

第１回転体７の突歯７１及び第２回転体８の突歯８１は、側面が傾斜している。飛び込み部７１１、８１１は先細形状で、噛み合い部７１２、８１２は先太形状である。そのため、隣接する突歯７１との飛び込み部間隔ｃ５が広くなっており、飛び込んでくる突歯８１も傾斜しており進入しやすい。進入して当接後は、傾斜面に沿って軸線方向Ｂの移動が促される。そして、係合の際は、隙間なく当接することができる。また、係合後は係合が外れにくい。   The side surfaces of the teeth 71 of the first rotating body 7 and the teeth 81 of the second rotating body 8 are inclined. The diving portions 711 and 811 have a tapered shape, and the meshing portions 712 and 812 have a tapered shape. Therefore, the jumping portion interval c5 between the adjacent protruding teeth 71 is wide, and the protruding teeth 81 that are jumping are also inclined and are likely to enter. After entering and abutting, movement in the axial direction B is urged along the inclined surface. And when engaging, it can contact | abut without a clearance gap. Further, it is difficult to disengage after engagement.

本実施形態６のトルク断続装置は、周方向の一方側での押し分け頻度が高い噛み合いクラッチに用いることで、バックラッシュの低減や押し分け荷重の低減に有効である。図１３において、第１回転体７は回転方向前側の側面と、第２回転体８は回転方向後側の側面とが当接して噛み合う噛み合いクラッチに特に効果的である。第２回転体８が軸線方向Ｂで移動して突歯８１の飛び込み部８１１が飛び込んできた際、第２回転体８の飛び込み部８１１の一方の側面８１１ａと第１回転体７の飛び込み部７１１の一方の側面７１１ａとが当接し、傾斜面の形状に沿って突歯８１が第１回転体７の突歯７１と突歯７１との間に導かれる。第２回転体８の突歯８１が飛び込んで、飛び込み部８１１の一方の側面８１１ａが第１回転体７の飛び込み部７１１の一方の側面７１１ａに当接後、はじかれ、第２回転体８の飛び込み部８１１の他方の側面８１１ｂと第１回転体８の飛び込み部８１１の他方の側面７１１ｂとが当接した場合、両側面８１１ｂ、７１１ｂによって軸線方向Ｂに導かれやすい。そのため、第２回転体８がはじかれた際には、突歯８１は軸線方向Ｂに更に進入している。   The torque interrupting device according to the sixth embodiment is effective in reducing backlash and pushing load by being used for a meshing clutch having a high pushing frequency on one side in the circumferential direction. In FIG. 13, the first rotating body 7 is particularly effective for a meshing clutch in which the side surface on the front side in the rotational direction and the second rotating body 8 mesh with each other on the side surface on the rear side in the rotational direction. When the second rotating body 8 moves in the axial direction B and the jumping portion 811 of the protrusion 81 has jumped in, one side surface 811a of the jumping portion 811 of the second rotating body 8 and the jumping portion 711 of the first rotating body 7 One side surface 711a abuts, and the projecting tooth 81 is guided between the projecting tooth 71 and the projecting tooth 71 of the first rotating body 7 along the shape of the inclined surface. The projecting tooth 81 of the second rotating body 8 jumps in, and after the one side surface 811a of the jumping portion 811 contacts the one side surface 711a of the jumping portion 711 of the first rotating body 7, it is repelled and the second rotating body 8 jumps in. When the other side surface 811b of the portion 811 and the other side surface 711b of the diving portion 811 of the first rotating body 8 come into contact with each other, they are easily guided in the axial direction B by the both side surfaces 811b and 711b. Therefore, when the second rotating body 8 is repelled, the projecting teeth 81 further enter the axial direction B.

（実施形態７）
本実施形態７のトルク断続装置で用いられる第１回転体９は、図１４に示すように、実施形態６のトルク断続装置で用いられた第１回転体７の突歯７１の飛び込み部７１１が変形した形状の突歯９１である。突歯９１は、周方向の一方が周方向に切り欠かれたような形状の飛び込み部９１１と、実施形態６のトルク断続装置で用いられた第１回転体７の突歯７１の噛み合い部７１２の形状の噛み合い部９１２とを備える。第１回転体９と係合する第２回転体８は、実施形態６のトルク断続装置で用いられた第２回転体８である。よって、説明を省略する。 (Embodiment 7)
As shown in FIG. 14, the first rotating body 9 used in the torque interrupting device of the seventh embodiment is deformed by the jumping portion 711 of the projecting tooth 71 of the first rotating body 7 used in the torque interrupting device of the sixth embodiment. It is the protruding tooth 91 of the shape. The projecting teeth 91 have a shape of a diving portion 911 having a shape in which one of the circumferential directions is notched in the circumferential direction and a meshing portion 712 of the projecting teeth 71 of the first rotating body 7 used in the torque interrupting device of the sixth embodiment. And a meshing portion 912. The second rotating body 8 engaged with the first rotating body 9 is the second rotating body 8 used in the torque interrupting device of the sixth embodiment. Therefore, the description is omitted.

第１回転体９の飛び込み部９１１は、第２回転体８の飛び込み部８１１の一方の側面８１１ａに対向する一方の側面９１１ａがほぼ軸線方向Ｂに平行である。そして、第１回転体９の突歯９１は、飛び込み部９１１と噛み合い部９１２との間に、飛び込み部９１１から噛み合い部９１２に向かって歯厚が大きくなるように傾斜した噛み合い部チャンファ面９１３が形成されている。   In the diving portion 911 of the first rotating body 9, one side surface 911 a facing the one side surface 811 a of the diving portion 811 of the second rotating body 8 is substantially parallel to the axial direction B. Further, the protruding tooth 91 of the first rotating body 9 is formed with a meshing portion chamfer surface 913 inclined between the diving portion 911 and the meshing portion 912 so that the tooth thickness increases from the diving portion 911 toward the meshing portion 912. Has been.

本実施形態７のトルク断続装置は、実施形態６のトルク断続装置と同様に、周方向の一方側で押し分け頻度が高い噛み合いクラッチに採用するのが好ましい。第１回転体９に、第２回転体８が軸線方向Ｂで接近し、第１回転体９と第２回転体８とが係合する場合で説明する。まず、第１回転体９の突歯９１の飛び込み部９１１と飛び込み部９１１との間に、第２回転体８の突歯８１の飛び込み部８１１が飛び込んでくる。第１回転体９の飛び込み部９１１と飛び込み部９１１との間の飛び込み部間隔ｃ６は、第１回転体９の飛び込み部９１１が周方向で切り欠いたような形状をしていることもあり、対向する第２回転体８の突歯８１の飛び込み部８１１が進入するのに充分な広さがある。飛び込んだ第２回転体８の飛び込み部８１１は、一方の側面８１１ａが第２回転体９の飛び込み部９１１の一方の側面９１１ａに当接し、側面８１１ａの傾斜形状によって、突歯８１が軸線方向Ｂに導かれる。その際、第２回転体８の突歯８１がはじかれても、第２回転体８の突歯８１の飛び込み部８１１の他方の側面８１１ｂが第１回転体９の突歯９１の飛び込み部９１１の他方の側面９１１ｂに当接し、互いの側面の傾斜によって軸線方向Ｂに更に導かれる。第１回転体９と第２回転体８とが係合する際は、当接する側面は、互いに同じ傾斜角の側面が当接するため、隙間なく係合できる。また、先太形状であるため、係合も外れにくい。   As in the torque interrupting device of the sixth embodiment, the torque interrupting device of the seventh embodiment is preferably employed in a meshing clutch that is frequently pushed on one side in the circumferential direction. The case where the second rotating body 8 approaches the first rotating body 9 in the axial direction B and the first rotating body 9 and the second rotating body 8 are engaged will be described. First, the jumping portion 811 of the projecting tooth 81 of the second rotating body 8 jumps between the jumping portion 911 and the jumping portion 911 of the projecting tooth 91 of the first rotating body 9. The diving portion interval c6 between the diving portion 911 and the diving portion 911 of the first rotating body 9 may have a shape such that the diving portion 911 of the first rotating body 9 is notched in the circumferential direction. There is enough space for the diving portion 811 of the protruding tooth 81 of the opposing second rotating body 8 to enter. The jumping portion 811 of the second rotating body 8 that has jumped in has one side surface 811a abutting on one side surface 911a of the jumping portion 911 of the second rotating body 9, and the inclined tooth 81 causes the tooth 81 to move in the axial direction B. Led. At that time, even if the protruding tooth 81 of the second rotating body 8 is repelled, the other side surface 811b of the protruding portion 811 of the protruding tooth 81 of the second rotating body 8 is the other side of the protruding portion 911 of the protruding tooth 91 of the first rotating body 9. It abuts on the side surface 911b and is further guided in the axial direction B by the inclination of the side surfaces. When the first rotator 9 and the second rotator 8 are engaged, the side surfaces in contact with each other can be engaged without a gap because the side surfaces with the same inclination angle contact each other. Moreover, since it is a thick tip shape, it is difficult to disengage.

（その他の実施形態）
以上、本発明の好適な実施形態について説明したが、本発明は上記実施形態に限定されるものではない。例えば、、実施形態１〜５の階段状突歯（３、５、６）は、回転方向の前方側と後方側とが同じ形状であるが、一方のみを階段状に形成されたものでも良い。回転方向が一定であり、当接する側面が決まっているのであれば、当接する側面側のみを階段状に加工することで、加工時間や加工費用を抑制することができる。 (Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, the stepped teeth (3, 5, 6) of the first to fifth embodiments have the same shape on the front side and the rear side in the rotational direction, but only one of them may be formed in a stepped shape. If the rotation direction is constant and the side surface to be contacted is determined, the processing time and processing cost can be suppressed by processing only the side surface to be contacted stepwise.

１，７，９：第１回転体、
２，４，８：第２回転体、２１，７１，８１，９１：突歯、２１１：歯先部、
２１２：歯元部、２１１ａ，２１２ｂ，２１１ｃ，３１ａ，３２ｂ，６１ａ，６２ｂ，７１１ａ，７１１ｂ，７１２ａ，７１２ｂ，８１１ａ，８１１ｂ，８１２ａ，８１２ｂ，９１１ａ，９１１ｂ，９１２ａ，９１２ｂ：側面、
２１３，３４，５４，６４，９１３：先端部チャンファ面、３，５，６：階段状突歯、
３１，５１，６１，７１１，８１１，９１１：飛び込み部（歯先部）、
３２，５２，６２，７１２，８１２，９１２：噛み合い部（歯元部）、
３３，５３，６３，９１３：噛み合い部チャンファ面、
６０：最先端。 1, 7, 9: the first rotating body,
2, 4, 8: second rotating body, 21, 71, 81, 91: projecting tooth, 211: tooth tip part,
212: tooth base part, 211a, 212b, 211c, 31a, 32b, 61a, 62b, 711a, 711b, 712a, 712b, 811a, 811b, 812a, 812b, 911a, 911b, 912a, 912b: side surface,
213, 34, 54, 64, 913: tip chamfer surface, 3, 5, 6: stepped teeth,
31, 51, 61, 711, 811, 911: dive part (tooth tip part),
32, 52, 62, 712, 812, 912: meshing part (tooth base part),
33, 53, 63, 913: meshing portion chamfer surface,
60: Cutting edge.

Claims (5)

相対回転可能な第１回転体と第２回転体との相互の回転連動遮断を噛み合いクラッチの対向する突歯の係脱により行うトルク断続装置であって、
前記第１及び第２回転体のうちの少なくとも一方の回転体の前記突歯はその歯厚が歯先側である歯先部より歯元側である歯元部の方が歯厚が大きくなるように略２段階になる階段状に形成された階段状突歯であり、
前記階段状突歯はその歯先部と歯元部との間が歯元側に向けて歯厚が大きくなるような噛み合い部チャンファ面をもつか、及び／又は、その階段状突歯に係脱する突歯の先端部が先端部チャンファ面をもち、
前記第１及び第２回転体のそれぞれの突歯の歯先側の歯厚が、それぞれ対向する突歯の歯元側の間に挿入可能な大きさであるトルク断続装置。 A torque interrupting device that performs mutual interlocking between the first rotating body and the second rotating body capable of relative rotation by engaging and disengaging the opposing teeth of the meshing clutch,
The protruding tooth of at least one of the first and second rotating bodies has a tooth thickness that is greater at the tooth root portion than the tooth tip portion at the tooth tip side. Are stepped teeth formed in a staircase shape having approximately two steps,
The stepped protrusion has a meshing portion chamfer surface in which the thickness between the tooth tip portion and the tooth root portion increases toward the tooth base side and / or engages / disengages with the stepped tooth protrusion. The tip of the tooth has a chamfer surface at the tip,
A torque interrupting device in which the tooth thicknesses on the tooth tip sides of the respective projecting teeth of the first and second rotating bodies are large enough to be inserted between the tooth base sides of the opposing projecting teeth. 前記第１及び第２回転体のそれぞれの突歯は噛み合ったときに相補的な形状である請求項１に記載のトルク断続装置。   2. The torque interrupting device according to claim 1, wherein the projecting teeth of the first and second rotating bodies have complementary shapes when meshed with each other. 前記階段状突歯は周方向の一面側でのみ階段状になっている請求項１に記載のトルク断続装置。   The torque interrupting device according to claim 1, wherein the stepped protrusions are stepped only on one surface side in the circumferential direction. 前記第１及び第２回転体の突歯は双方共に前記階段状突歯である請求項１〜３のうちの何れか１項に記載のトルク断続装置。   The torque interrupting device according to any one of claims 1 to 3, wherein the teeth of the first and second rotating bodies are both the stepped teeth. 相対回転可能な第１回転体と第２回転体との相互の回転連動遮断を噛み合いクラッチの対向する突歯の係脱により行うトルク断続装置であって、
前記第１及び第２回転体のうちの少なくとも一方の回転体の前記突歯はその先端が周方向に非対称且つ斜めになっていることを特徴とするトルク断続装置。 A torque interrupting device that performs mutual interlocking between the first rotating body and the second rotating body capable of relative rotation by engaging and disengaging the opposing teeth of the meshing clutch,
The torque interrupting device according to claim 1, wherein a tip of the projecting tooth of at least one of the first and second rotating bodies has an asymmetrical and oblique tip in a circumferential direction.
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