JP2018194035A - Reverse rotation prevention mechanism and one-way clutch including the same - Google Patents
Reverse rotation prevention mechanism and one-way clutch including the same Download PDFInfo
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Abstract
Description
本発明は、相互に噛み合う作動歯車及び補助歯車を備え、作動歯車は一方向のみに回転することが可能な反対回転防止機構及びこの反対回転防止機構を備えた一方向クラッチに関するものである。 The present invention relates to an anti-rotation mechanism capable of rotating in only one direction, and an one-way clutch provided with the counter-rotation prevention mechanism.
近時では、例えば遊園地のような施設において、出口から施設内への不正な入場を阻止すべく、施設内から施設外への退場は許容するが施設外から施設内への入場は規制する一方通行の退場ゲートを施設の出口に設置することがある。このような退場ゲートの一例として、下記の特許文献１に示す回転可能な複数のアームを備えたゲート装置が知られており、これについて図８を参照して説明する。 Recently, in facilities such as amusement parks, in order to prevent unauthorized entry from the exit to the facility, entry from the facility to the outside of the facility is permitted, but entry from outside the facility to the facility is restricted. A one-way exit gate may be installed at the exit of the facility. As an example of such an exit gate, a gate device having a plurality of rotatable arms shown in Patent Document 1 below is known, which will be described with reference to FIG.
図８に示すゲート装置ＧＤは、本体Ｂとこの本体Ｂと対向して設置されるガイドＧとを備えており、本体ＢとガイドＧとの間に退場者が通行する退場路Ｘが規定される。本体Ｂには、退場路Ｘに向かって直角且つ下方に傾斜して延びる回転軸を中心として回転可能なヘッドＨが配設されている。このヘッドＨには退場路Ｘに向けて突出するように３本の棒状のアームＡが放射状に付設されている。３本のアームＡは、ヘッドＨの回転に応じて３本のうちのいずれか１本が地面と平行であって且つ退場路Ｘに対して直角になりこれを塞ぐようにして、ヘッドＨに付設されている。このようなゲート装置を施設の出口に設置する際には、アームＡが施設内から施設外の方向にのみ回転可能であって、その反対方向には回転不能になるようヘッドＨに適宜の反対回転防止機構が設けられる。 The gate device GD shown in FIG. 8 includes a main body B and a guide G installed opposite to the main body B, and an exit path X through which the exit person passes is defined between the main body B and the guide G. The The main body B is provided with a head H that is rotatable about a rotation axis extending at a right angle toward the exit path X and inclined downward. The head H is provided with three rod-like arms A radially so as to protrude toward the exit path X. In response to the rotation of the head H, the three arms A are connected to the head H so that any one of the three arms is parallel to the ground and is perpendicular to the exit path X so as to block it. It is attached. When installing such a gate device at the exit of a facility, the arm A can be rotated only in the direction from the facility to the outside of the facility, and the head H can be appropriately reversed so as not to rotate in the opposite direction. An anti-rotation mechanism is provided.
反対回転防止機構としては、ローラーの噛み込みを利用する形式のもの、ラチェット機構を利用する形式のもの等、種々の形式のものがある。反対回転防止機構を利用した装置が反対回転防止装置であり、ローラーの噛み込みを利用する形式のものの一例として、本出願人の創案に係る特許文献２に記載されたものがあり、これについて図９を参照して説明する。 As the counter-rotation preventing mechanism, there are various types such as a type using a roller bite and a type using a ratchet mechanism. The device using the counter rotation prevention mechanism is the counter rotation prevention device, and an example of the type using the biting of the roller is described in Patent Document 2 relating to the creation of the present applicant. This will be described with reference to FIG.
図９に示す反対回転防止装置ＯＣは、回転体であるシャフトＳ、シャフトＳが挿通される円環形状のハウジングＨを備えている。ハウジングＨ内には周方向に間隔をおいて複数のローラー収容空間ＲＳが設けられており、夫々のローラー収容空間ＲＳ内には金属製のローラーＲが収容されている。夫々のローラー収容空間ＲＳは、図９において周方向右側の径方向幅が周方向左側の径方向幅よりも大きい楔形形状である。ローラー収容空間ＲＳの径方向内側面にはローラーＲの一部が露出する開口Ｏが形成されており、ローラーＲは開口Ｏを通してシャフトＳの外周面と接する。 The counter rotation prevention device OC shown in FIG. 9 includes a shaft S that is a rotating body, and an annular housing H into which the shaft S is inserted. A plurality of roller accommodating spaces RS are provided in the housing H at intervals in the circumferential direction, and a metal roller R is accommodated in each roller accommodating space RS. Each roller accommodating space RS has a wedge shape in which the radial width on the right side in the circumferential direction in FIG. 9 is larger than the radial width on the left side in the circumferential direction. An opening O through which a part of the roller R is exposed is formed on the radially inner side surface of the roller housing space RS, and the roller R contacts the outer peripheral surface of the shaft S through the opening O.
このような反対回転防止装置ＯＣにおいてシャフトＳが図９において周方向右側に回転した場合には、シャフトＳの外周面と開口Ｏを通して接するローラーＲもローラー収容空間ＲＳ内を図９において周方向右側に移動する。この際には、ローラーＲは楔形形状の広い側へ移動することとなるため、ハウジングＨとシャフトＳとの間で噛み込みを生じることはなく、シャフトＳの回転が規制されることはない。一方、シャフトＳが図９において周方向左側に回転した場合には、ローラーＲもローラー収容空間ＲＳ内を図９において周方向左側に移動する。この際には、ローラーＲは楔形形状の狭い側へ移動することとなり、ハウジングＨとシャフトＳとの間で噛み込みを生じ、シャフトＳの回転が規制される。つまり、シャフトＳは周方向右側には回転することができるが、周方向左側には回転することができない。 In such an anti-rotation device OC, when the shaft S rotates to the right in the circumferential direction in FIG. 9, the roller R contacting the outer peripheral surface of the shaft S through the opening O also moves to the right in the circumferential direction in FIG. Move to. At this time, the roller R moves to the wide side of the wedge shape, so that no biting occurs between the housing H and the shaft S, and the rotation of the shaft S is not restricted. On the other hand, when the shaft S rotates to the left in the circumferential direction in FIG. 9, the roller R also moves in the roller housing space RS to the left in the circumferential direction in FIG. At this time, the roller R moves to the wedge-shaped narrow side, and the housing H and the shaft S are bitten, and the rotation of the shaft S is restricted. That is, the shaft S can rotate to the right in the circumferential direction, but cannot rotate to the left in the circumferential direction.
特許文献２の反対回転防止装置ＯＣにおいては、部品点数が多く組み立てが容易ではないため、製造コストが増大する。また、通常、ローラーＲは金属製であるため、少なくともハウジングＨのローラー収容空間ＲＳの外周面は金属製としなくてはならない。そのため、上述した反対回転防止装置ＯＣ全体を樹脂のような軽量且つ安価な材料で製造することはできない。 In the counter-rotation prevention device OC of Patent Document 2, the number of parts is large and assembly is not easy, so that the manufacturing cost increases. Moreover, since the roller R is normally made of metal, at least the outer peripheral surface of the roller accommodating space RS of the housing H must be made of metal. For this reason, it is impossible to manufacture the entire counter rotation prevention device OC described above using a light and inexpensive material such as resin.
そこで、本発明は、構造が簡易であると共に部品の材質によらない反対回転防止機構を考案すること、及びかかる反対回転防止機構を備えた一方向クラッチを提供することを課題とする。 Therefore, an object of the present invention is to devise an anti-rotation mechanism that has a simple structure and does not depend on the material of a component, and to provide a one-way clutch provided with such an anti-rotation mechanism.
上記の課題に鑑み、本願の第一発明は、両側面が周方向において対称な歯型形状に形成された歯を有する補助歯車と、一方の側面には歯元部に円弧状凹部が形成され、他方の側面には補助歯車の歯先に当接する部位が形成された歯を有する作動歯車とを備え、作動歯車の一方向への回転は許容されるが、他方向への回転は補助歯車との干渉により規制されるようにしたものである。即ち、本願の第一発明は、
「相互に噛み合う作動歯車及び補助歯車を備え、前記作動歯車の一方向のみの回転が可能な反対回転防止機構であって、
前記作動歯車及び前記補助歯車には、それぞれの歯車ごとに、同一形状の複数の歯が周方向に同一間隔をおいて配置され、
前記補助歯車の歯は、周方向の両側面が対称な歯形形状に形成され、
前記作動歯車の歯は、一方の側面には、歯元部に円弧状凹部が形成され、他方の側面には、前記補助歯車の歯先に当接する部位が形成されており、
前記作動歯車が回転可能な一方向に回転したときは、前記一方の側面が前記補助歯車の歯に当接して前記補助歯車を回転させ、反対方向に回転したときは、前記他方の側面が前記補助歯車の歯先に当接して前記補助歯車にその回転中心に向けた力を作用させ、前記作動歯車及び前記補助歯車の回転が阻止される」
ことを特徴とする反対回転防止機構となっている。
In view of the above problems, the first invention of the present application is that an auxiliary gear having teeth formed on both sides of a tooth shape that is symmetrical in the circumferential direction, and an arc-shaped recess is formed in a tooth base portion on one side surface. The other side surface is provided with an operating gear having a tooth formed with a portion that contacts the tooth tip of the auxiliary gear, and the rotation of the operating gear is allowed in one direction, but the rotation in the other direction is allowed. It is intended to be regulated by interference with That is, the first invention of the present application is
“An anti-rotation mechanism comprising an operating gear and an auxiliary gear meshing with each other, and capable of rotating in only one direction of the operating gear,
In the operating gear and the auxiliary gear, for each gear, a plurality of teeth having the same shape are arranged at the same interval in the circumferential direction,
The teeth of the auxiliary gear are formed in a tooth shape symmetrical on both side surfaces in the circumferential direction,
The tooth of the operating gear is formed with an arcuate recess in the tooth base on one side, and a portion that contacts the tooth tip of the auxiliary gear on the other side,
When the actuating gear rotates in one rotatable direction, the one side surface abuts on the teeth of the auxiliary gear to rotate the auxiliary gear, and when rotated in the opposite direction, the other side surface is Abutting against the tooth tip of the auxiliary gear, a force directed to the rotation center is applied to the auxiliary gear, and the rotation of the operating gear and the auxiliary gear is prevented.
The anti-rotation mechanism is characterized by this.
前記作動歯車の歯数は７であり、前記補助歯車の歯数は６であるのが好ましい。
前記補助歯車の歯は、標準インボリュート歯車の歯型形状に形成され、前記作動歯車の歯の他方の側面は、前記補助歯車と同一の標準インボリュート歯車の歯型形状に形成されているのが好ましい。
前記作動歯車の歯の一方の側面には、歯先部に円弧状凸部が形成されているのが好ましい。
Preferably, the number of teeth of the operating gear is 7, and the number of teeth of the auxiliary gear is 6.
Preferably, the teeth of the auxiliary gear are formed in a tooth shape of a standard involute gear, and the other side surface of the teeth of the operating gear is formed in the same tooth shape of a standard involute gear as the auxiliary gear. .
It is preferable that an arcuate convex portion is formed on the tooth tip portion on one side surface of the tooth of the operating gear.
また、本願の第二発明は、本願の第一発明にかかる反対回転防止機構を備えた一方向クラッチである。即ち、本願の第二発明は、
「請求項１乃至４のいずれかに記載の反対方向回転防止機構を備え、かつ、共通の回転軸の周りに回転可能な入力軸と出力軸とを備える一方向クラッチであって、
前記入力軸には前記作動歯車が固着されるとともに、前記出力軸には、前記共通の回転軸から偏心した位置に偏心軸が固着され、かつ、前記補助歯車が前記偏心軸に嵌め合わされて、前記作動歯車と噛み合いながら回転可能であるよう設置されており、
前記入力軸が前記補助歯車の回転可能な方向に回転したときは、前記補助歯車が自転して前記入力軸から前記出力軸に回転が伝達されず、前記入力軸が反対方向に回転したときは、前記補助歯車の回転が阻止されて前記出力軸に回転が伝達される」
ことを特徴とする一方向クラッチとなっている。
Moreover, 2nd invention of this application is a one-way clutch provided with the reverse rotation prevention mechanism concerning 1st invention of this application. That is, the second invention of the present application is
“A one-way clutch comprising the reverse rotation prevention mechanism according to any one of claims 1 to 4 and having an input shaft and an output shaft rotatable around a common rotation shaft,
The operating gear is fixed to the input shaft, the eccentric shaft is fixed to the output shaft at a position eccentric from the common rotating shaft, and the auxiliary gear is fitted to the eccentric shaft, It is installed so that it can rotate while meshing with the operating gear,
When the input shaft rotates in the direction in which the auxiliary gear can rotate, the auxiliary gear rotates and rotation is not transmitted from the input shaft to the output shaft, and when the input shaft rotates in the opposite direction. The rotation of the auxiliary gear is prevented and the rotation is transmitted to the output shaft "
This is a one-way clutch.
２個の前記補助歯車が、前記作動歯車を挟んで対向する位置にそれぞれ配置されているのが好ましい。 It is preferable that the two auxiliary gears are respectively arranged at positions facing each other with the operation gear interposed therebetween.
本願の第一発明にかかる反対回転防止機構では、相互に噛み合う作動歯車及び補助歯車には、それぞれの歯車ごとに、同一形状の複数の歯が周方向に同一間隔をおいて配置される。補助歯車の歯は、周方向の両側面が対称な歯型形状に形成されるが、作動歯車の歯は、周方向の両側面が非対称な歯型形状に形成される。即ち、作動歯車の歯は、その一方の側面には、歯元部に円弧状凹部が形成され、他方の側面には、補助歯車の歯先に当接する部位が形成される。作動歯車が一方向に回転したときは、作動歯車の歯の一方の側面が補助歯車の歯の一方の側面に当接してこれを一方向に押し補助歯車を他方向に回転させる。一方、作動歯車が他方向（反対方向）に回転したときは、作動歯車の歯と補助歯車の歯とが干渉、即ち、後に言及する図３（ｂ）に示すとおり、作動歯車の歯の他方の側面が所定の部位にて補助歯車の歯先面と当接する。このとき、作動歯車の他方の側面は補助歯車の回転中心に向けて力を作用させるため、補助歯車と共に作動歯車の回転が阻止される。つまり、作動歯車の一方向への回転は許容されるが、他方向への回転は規制される。 In the counter-rotation preventing mechanism according to the first invention of the present application, a plurality of teeth having the same shape are arranged at the same interval in the circumferential direction for each of the operating gear and the auxiliary gear that mesh with each other. The teeth of the auxiliary gear are formed in a tooth shape that is symmetrical on both sides in the circumferential direction, while the teeth of the working gear are formed in a tooth shape that is asymmetric on both sides in the circumferential direction. That is, the tooth of the operating gear is formed with an arc-shaped concave portion at the tooth base portion on one side surface, and a portion that contacts the tooth tip of the auxiliary gear on the other side surface. When the operating gear rotates in one direction, one side surface of the teeth of the operating gear comes into contact with one side surface of the teeth of the auxiliary gear and pushes it in one direction to rotate the auxiliary gear in the other direction. On the other hand, when the operating gear rotates in the other direction (opposite direction), the teeth of the operating gear interfere with the teeth of the auxiliary gear, that is, as shown in FIG. The side surfaces of the auxiliary abutment with the tooth tip surface of the auxiliary gear at a predetermined portion. At this time, since the other side surface of the operating gear applies a force toward the rotation center of the auxiliary gear, the rotation of the operating gear together with the auxiliary gear is prevented. That is, rotation of the operating gear in one direction is allowed, but rotation in the other direction is restricted.
従って、本願の第一発明にかかる反対回転防止機構においては、部品点数の少ない簡易な構造で、作動歯車の一方向への回転は許容されるが他方向への回転は規制されるようにすることができる。また、作動歯車と補助歯車との干渉により両歯車の回転が規制されるため、ローラー等の金属製部品は不要である。そのため、本願の第一発明にかかる反対回転防止機構を構成する各部品については、材質の制限を受けない。 Therefore, in the counter rotation prevention mechanism according to the first invention of the present application, the rotation of the operating gear in one direction is allowed but the rotation in the other direction is restricted with a simple structure having a small number of parts. be able to. Further, since the rotation of both gears is restricted by the interference between the operating gear and the auxiliary gear, metal parts such as rollers are unnecessary. For this reason, the parts constituting the counter rotation prevention mechanism according to the first invention of the present application are not limited by the material.
一方、本願の第二発明である、上記本願の第一発明にかかる反対回転防止機構を備えた一方向クラッチにおいては、入力軸及び出力軸は共通の回転軸を有し、入力軸は作動歯車に固着されると共に出力軸は補助歯車に接続される。出力軸には上記共通の回転軸に対して偏心した偏心軸が固着されており、補助歯車は偏心軸に嵌め合わされて、作動歯車と噛み合いながら回転可能であるように設置される。そして、入力軸が一方向に回転したときは、入力軸に固着された作動歯車と噛み合う補助歯車が偏心軸の周りで他方向に自転し、入力軸から出力軸に回転が伝達されない。一方、入力軸が他方向に回転したときは、作動歯車と補助歯車とが干渉して補助歯車の自転が阻止される。ここで、補助歯車は共通の回転軸に対して偏心した偏心軸によって回転可能に支持されており、偏心軸を備える出力軸は共通の回転軸に対して回転可能である。そのため、補助歯車は、作動歯車により自転が阻止されるものの作動歯車と一体となって共通の回転軸の周りを公転する。つまり、入力軸の一方向への回転は入力軸が空転して出力軸に伝達されないが、入力軸の他方向への回転は出力軸に伝達される。 On the other hand, in the one-way clutch provided with the counter rotation prevention mechanism according to the first invention of the present application, which is the second invention of the present application, the input shaft and the output shaft have a common rotating shaft, and the input shaft is an operating gear. The output shaft is connected to the auxiliary gear. An eccentric shaft that is eccentric with respect to the common rotating shaft is fixed to the output shaft, and the auxiliary gear is fitted to the eccentric shaft so as to be rotatable while meshing with the operating gear. When the input shaft rotates in one direction, the auxiliary gear meshing with the operation gear fixed to the input shaft rotates in the other direction around the eccentric shaft, and rotation is not transmitted from the input shaft to the output shaft. On the other hand, when the input shaft rotates in the other direction, the operation gear and the auxiliary gear interfere with each other to prevent the auxiliary gear from rotating. Here, the auxiliary gear is rotatably supported by an eccentric shaft that is eccentric with respect to the common rotating shaft, and the output shaft including the eccentric shaft is rotatable with respect to the common rotating shaft. Therefore, although the auxiliary gear is prevented from rotating by the operating gear, the auxiliary gear revolves around the common rotating shaft together with the operating gear. That is, the rotation of the input shaft in one direction is not transmitted to the output shaft due to the idle rotation of the input shaft, but the rotation of the input shaft in the other direction is transmitted to the output shaft.
従って、本願の第二発明である一方向クラッチにおいては、部品点数の削減及び組み立て容易性の観点から製造コスト及び重量を低減することが可能となる。また、ローラー等の金属製部品は不要であるため、各構成部品を樹脂で製造することも可能である。各構成部品を樹脂で製造した場合には、製造コスト及び重量をより一層低減させることが可能となる。 Therefore, in the one-way clutch which is the second invention of the present application, it is possible to reduce the manufacturing cost and the weight from the viewpoint of reducing the number of parts and the ease of assembly. Moreover, since metal parts, such as a roller, are unnecessary, it is also possible to manufacture each component with resin. When each component is manufactured with resin, manufacturing cost and weight can be further reduced.
以下、図面に基づいて、本発明の反対回転防止機構及びこれを備える一方向クラッチについて説明する。図１には、本願の第一発明である反対回転防止機構の構成を示す。以下においては、一方向とは各図における反時計方向を、他方向及び反対方向とは各図における時計方向を夫々示すものとする。 Hereinafter, an anti-rotation mechanism and a one-way clutch provided with the same will be described with reference to the drawings. In FIG. 1, the structure of the counter rotation prevention mechanism which is 1st invention of this application is shown. In the following, one direction indicates the counterclockwise direction in each figure, and the other direction and the opposite direction indicate the clockwise direction in each figure.
図１に示すように、本願の第一発明の反対回転防止機構は、相互に噛み合う作動歯車２及び補助歯車４を備えている。作動歯車２には、同一形状の複数（図示の実施例においては７個）の歯６が周方向に同一間隔をおいて配置されている。歯６は一方の側面８と、他方の側面１０と、これら両側面８及び１０を接続する平坦な歯先面１２とを備えている。一方の側面８には、歯元部に円弧状凹部１４が形成されている。円弧状凹部１４は比較的小さな曲率を有し、歯６の基端から歯先端部まで延在している。また、歯先部には円弧状凸部１６が形成されている。円弧状凸部１６は比較的大きい曲率であって且つ断面が略半円形であり、径方向内側端は円弧状凹部１４の径方向外側端に、径方向外側端は歯先面１２の一方端に夫々接続されている。他方の側面１０は一方の側面８とは非対称であり、図示の実施例においては、他方の側面１０は標準インボリュート歯車の歯型形状に形成されている（後述するとおり、これは標準インボリュート歯車の歯型形状である補助歯車４の歯型形状と同一である）。他方の側面１０には、後述するとおり作動歯車２が反対方向に回転した際に、補助歯車４の歯先に当接する部位が形成されている。かかる部位については番号１８を付し、後に言及する。
補助歯車４にも、同一形状の複数（図示の実施例においては６個）の歯２０が周方向に同一間隔をおいて配置されている。歯２０は一方の側面２２と、他方の側面２４と、両側面２２及び２４を接続する平坦な歯先面２６とを備え、周方向の両側面２２及び２４は対称である。図示の実施例においては、歯２０は標準インボリュート歯車の歯型形状に形成されている。
As shown in FIG. 1, the reverse rotation prevention mechanism of the first invention of the present application includes an operating gear 2 and an auxiliary gear 4 that mesh with each other. In the operating gear 2, a plurality of (seven in the illustrated embodiment) teeth 6 having the same shape are arranged at the same interval in the circumferential direction. The tooth 6 includes one side surface 8, the other side surface 10, and a flat tooth tip surface 12 that connects the side surfaces 8 and 10. On one side surface 8, an arcuate recess 14 is formed at the tooth root. The arcuate recess 14 has a relatively small curvature and extends from the base end of the tooth 6 to the tooth tip. Further, an arcuate convex portion 16 is formed at the tooth tip portion. The arcuate convex portion 16 has a relatively large curvature and a substantially semicircular cross section, the radially inner end is the radially outer end of the arcuate recess 14, and the radially outer end is one end of the addendum surface 12. Connected to each. The other side surface 10 is asymmetric with respect to one side surface 8, and in the illustrated embodiment, the other side surface 10 is formed in the tooth shape of a standard involute gear (as will be described later, this is a standard involute gear). It is the same as the tooth shape of the auxiliary gear 4 having a tooth shape). The other side surface 10 is formed with a portion that contacts the tooth tip of the auxiliary gear 4 when the operating gear 2 rotates in the opposite direction as will be described later. Such sites are numbered 18 and will be referred to later.
In the auxiliary gear 4, a plurality of (six in the illustrated embodiment) teeth 20 having the same shape are arranged at the same interval in the circumferential direction. The tooth 20 includes one side surface 22, the other side surface 24, and a flat tooth tip surface 26 connecting both side surfaces 22 and 24, and the both side surfaces 22 and 24 in the circumferential direction are symmetrical. In the illustrated embodiment, the teeth 20 are formed in the shape of a standard involute gear.
続いて、本願の第一発明の反対回転防止機構の作動について図２及び図３を参照して説明する。図２には、作動歯車２が一方向に回転した際の作動を示し、図３には、作動歯車２が反対方向に回転した際の作動を示す。 Next, the operation of the counter rotation prevention mechanism of the first invention of the present application will be described with reference to FIGS. FIG. 2 shows an operation when the operating gear 2 rotates in one direction, and FIG. 3 shows an operation when the operating gear 2 rotates in the opposite direction.
作動歯車２が反時計方向に回転した際の作動について、図２（ａ）に示す状態を始点として説明する。
図２（ａ）に示す状態においては、作動歯車２の歯６の一方の側面８に設けられた円弧状凸部１６が補助歯車４の歯２０の一方の側面２２に当接している（当接する部位をＰで示す）。かかる状態から作動歯車２が反時計方向に回転すると、作動歯車２の円弧状凸部１６が補助歯車４の歯２０の一方の側面２２を押して補助歯車４を時計方向に回転させ、図２（ｂ）に示す状態になるまで作動歯車２及び補助歯車４は夫々回転する。
図２（ｂ）に示す状態から作動歯車２が反時計方向に更に回転すると、図２（ｃ）に示すとおり、作動歯車２の円弧状凸部１６が補助歯車４の歯２０の一方の側面２２から離隔すると共に、作動歯車２の歯６の時計方向側においてこれと隣接して位置する歯６´の円弧状凹部１４´の基端部が、補助歯車４の歯２０の反時計方向側においてこれと隣接して位置する歯２０´の一方の側面２２´の歯先端部に当接してこれを反時計方向に押し、補助歯車４を時計方向に更に回転させる。
図２（ｃ）に示す状態から作動歯車２が反時計方向に更に回転すると、図２（ｄ）及び（ｅ）に示すとおり、作動歯車２の円弧状凹部１４´と補助歯車４の歯２０´の一方の側面２２´との当接点Ｐが補助歯車４の回転中心に向かって漸次移動しながら作動歯車２の歯６´が補助歯車４の歯２０´を反時計方向に押して補助歯車４を更に時計方向に回転させる。
そして、図２（ｅ）に示す状態から作動歯車２が反時計方向に更に回転すると、作動歯車２の円弧状凹部１４´と補助歯車４の歯２０´の一方の側面２２´とが離隔すると共に、作動歯車２の円弧状凸部１６´が補助歯車４の歯２０´の一方の側面２２´と当接し、再び図２（ａ）に示す状態となる。この際には、作動歯車２に形成された凸部１６´によって、作動歯車２の側面１４´は補助歯車４の側面２０´を容易に押すことができ、作動歯車２は円滑に回転することが可能となる。
以下同様にして、作動歯車２は反時計方向に、補助歯車４は時計方向に夫々連続して回転する。
The operation when the operation gear 2 rotates counterclockwise will be described starting from the state shown in FIG.
In the state shown in FIG. 2 (a), the arcuate convex portion 16 provided on one side surface 8 of the tooth 6 of the operating gear 2 is in contact with one side surface 22 of the tooth 20 of the auxiliary gear 4. The contact site is indicated by P). When the operating gear 2 rotates counterclockwise from this state, the arc-shaped convex portion 16 of the operating gear 2 pushes one side surface 22 of the tooth 20 of the auxiliary gear 4 to rotate the auxiliary gear 4 clockwise, and FIG. The operating gear 2 and the auxiliary gear 4 rotate until the state shown in b) is reached.
When the operating gear 2 further rotates counterclockwise from the state shown in FIG. 2B, the arc-shaped convex portion 16 of the operating gear 2 is on one side surface of the teeth 20 of the auxiliary gear 4 as shown in FIG. The base end portion of the arcuate recess 14 ′ of the tooth 6 ′ that is separated from the tooth 22 and adjacent to the tooth 6 ′ on the clockwise side of the tooth 6 of the operating gear 2 is counterclockwise to the tooth 20 of the auxiliary gear 4. In this case, the tooth 20 'is positioned in contact with the tooth tip of the side surface 22' adjacent to the tooth tip and pressed counterclockwise to further rotate the auxiliary gear 4 in the clockwise direction.
When the operating gear 2 further rotates counterclockwise from the state shown in FIG. 2 (c), the arcuate recess 14 'of the operating gear 2 and the teeth 20 of the auxiliary gear 4 are shown in FIGS. 2 (d) and 2 (e). The contact point P with the one side surface 22 ′ of the ′ gradually moves toward the rotation center of the auxiliary gear 4, while the tooth 6 ′ of the operating gear 2 pushes the tooth 20 ′ of the auxiliary gear 4 counterclockwise. Is further rotated clockwise.
When the operating gear 2 further rotates counterclockwise from the state shown in FIG. 2E, the arcuate recess 14 'of the operating gear 2 and the one side surface 22' of the tooth 20 'of the auxiliary gear 4 are separated from each other. At the same time, the arcuate convex portion 16 ′ of the operating gear 2 comes into contact with one side surface 22 ′ of the tooth 20 ′ of the auxiliary gear 4, and the state shown in FIG. At this time, the side surface 14 ′ of the operating gear 2 can easily push the side surface 20 ′ of the auxiliary gear 4 by the convex portion 16 ′ formed on the operating gear 2, and the operating gear 2 rotates smoothly. Is possible.
In the same manner, the operation gear 2 continuously rotates counterclockwise and the auxiliary gear 4 rotates clockwise.
次に、作動歯車２が時計方向に回転した際の作動について、図３（ａ）に示す状態を始点として説明する。
まず、図３（ａ）に示す状態においては、作動歯車２の歯６の他方の側面１０が補助歯車４の歯２０の他方の側面２４と当接している（当接する部位をＰで示す）。かかる状態から作動歯車２が時計方向に回転すると、作動歯車２の歯６の他方の側面１０が補助歯車４の歯２０の他方の面２４を時計方向に押して補助歯車４を反時計方向に回転させる。作動歯車２及び補助歯車４が夫々所定程度回転すると、作動歯車２の歯６の反時計方向側においてこれと隣接して位置する歯６´と、補助歯車４の歯２０の時計方向側においてこれと隣接して位置する歯２０´とが相互に接近し、そして、図３（ｂ）に示すとおり、作動歯車２の歯６´の他方の側面１０´、更に詳しくは部位１８´が補助歯車４の歯先に当接する。このとき、作動歯車２の歯６´の他方の側面１０´は、部位１８´において、補助歯車４´の歯先面２６´に対し、補助歯車４の回転中心に向けて力を作用させるため（その作用ベクトルを矢印で示す）、補助歯車４と共に作動歯車２の回転が阻止される。
Next, the operation when the operation gear 2 rotates in the clockwise direction will be described starting from the state shown in FIG.
First, in the state shown in FIG. 3A, the other side surface 10 of the tooth 6 of the operating gear 2 is in contact with the other side surface 24 of the tooth 20 of the auxiliary gear 4 (the contact portion is indicated by P). . When the operating gear 2 rotates clockwise from this state, the other side surface 10 of the tooth 6 of the operating gear 2 pushes the other surface 24 of the tooth 20 of the auxiliary gear 4 clockwise to rotate the auxiliary gear 4 counterclockwise. Let When the actuating gear 2 and the auxiliary gear 4 rotate to a predetermined degree, the teeth 6 'positioned adjacent to the teeth 6 of the actuating gear 2 on the counterclockwise direction and the teeth 6' of the auxiliary gear 4 on the clockwise side thereof. And the adjacent tooth 20 'are close to each other, and as shown in FIG. 3B, the other side surface 10' of the tooth 6 'of the operating gear 2, more specifically, the portion 18' is an auxiliary gear. 4 abuts against the tooth tip. At this time, the other side surface 10 ′ of the tooth 6 ′ of the operating gear 2 applies a force toward the rotational center of the auxiliary gear 4 against the tooth tip surface 26 ′ of the auxiliary gear 4 ′ at the portion 18 ′. (The action vector is indicated by an arrow), and the operation gear 2 is prevented from rotating together with the auxiliary gear 4.
従って、本願の第一発明にかかる反対回転防止機構においては、部品点数の少ない簡易な構造で、作動歯車の一方向への回転は許容されるが他方向への回転は規制されるようにすることができる。また、作動歯車と補助歯車との干渉により両歯車の回転が規制されるため、ローラー等の金属製部品は不要である。そのため、本願の第一発明にかかる反対回転防止機構を構成する各部品については、材質の制限を受けない。 Therefore, in the counter rotation prevention mechanism according to the first invention of the present application, the rotation of the operating gear in one direction is allowed but the rotation in the other direction is restricted with a simple structure having a small number of parts. be able to. Further, since the rotation of both gears is restricted by the interference between the operating gear and the auxiliary gear, metal parts such as rollers are unnecessary. For this reason, the parts constituting the counter rotation prevention mechanism according to the first invention of the present application are not limited by the material.
続いて、図４を参照して、上述した反対回転防止機構を備えた反対回転防止装置について説明する。
図４に示す反対回転防止装置は、上述した本願の第一発明にかかる反対回転防止機構即ち作動歯車２及び補助歯車４と、各々の歯車に固着された作動軸２８及び補助軸３０と、これらを収容するハウジング３２とを備えている。ハウジング３２は、上面のみが開放された略中空直方体形状の収容部３４を有する。収容部３４の一部を構成し且つ相互に対向する一対の壁面３４ａ及び３４ｂの上端部には、作動軸２８及び補助軸３０を回転可能に支持するための軸受３６が夫々形成されている。軸受３６はＵ字孔であり、壁面３４ａ及び３４ｂの上端は開放されている。作動歯車２及び補助歯車４は相互に噛み合った状態で作動軸２８及び補助軸３０が軸受３６に回転可能な状態で軸支される。作動軸２８は比較的長く、その一部が例えば図８のゲート装置のヘッドなどに接続される。
Next, with reference to FIG. 4, the counter rotation prevention device including the above counter rotation prevention mechanism will be described.
The counter rotation prevention device shown in FIG. 4 includes the counter rotation prevention mechanism according to the first invention of the present application, that is, the operation gear 2 and the auxiliary gear 4, the operation shaft 28 and the auxiliary shaft 30 fixed to each gear, and these And a housing 32 for housing the housing. The housing 32 includes a housing portion 34 having a substantially hollow rectangular parallelepiped shape whose upper surface is open. Bearings 36 for rotatably supporting the operating shaft 28 and the auxiliary shaft 30 are formed at upper ends of a pair of wall surfaces 34a and 34b that constitute a part of the housing portion 34 and face each other. The bearing 36 is a U-shaped hole, and the upper ends of the wall surfaces 34a and 34b are open. The operating gear 2 and the auxiliary gear 4 are supported by the bearing 36 in a state where the operating shaft 28 and the auxiliary shaft 30 can rotate with the operating gear 2 and the auxiliary gear 4 meshing with each other. The operation shaft 28 is relatively long, and a part of the operation shaft 28 is connected to, for example, the head of the gate device shown in FIG.
上述した反対回転防止装置の作動は、上述した本願の第一発明である反対回転防止機構と同一である。つまり、作動歯車２の一方向（即ち図４における反時計方向）への回転は、補助歯車４の他方向（即ち図４における時計方向）への回転と共に可能であるが、作動歯車２の他方向への回転は作動歯車２の歯６と補助歯車４の歯２０とが相互に干渉して阻止される。即ち、作動歯車２に固着された作動軸２８は、一方向のみの回転が許容され、他方向への回転はロックして規制される。 The operation of the counter rotation prevention device described above is the same as that of the counter rotation prevention mechanism according to the first invention of the present application described above. That is, the rotation of the operation gear 2 in one direction (that is, counterclockwise in FIG. 4) is possible together with the rotation of the auxiliary gear 4 in the other direction (that is, clockwise in FIG. 4). The rotation in the direction is prevented by the teeth 6 of the operating gear 2 and the teeth 20 of the auxiliary gear 4 interfering with each other. That is, the operating shaft 28 fixed to the operating gear 2 is allowed to rotate in only one direction, and the rotation in the other direction is locked and restricted.
次に、図５を参照して、上述した本願の第一発明である反対回転防止機構を備えた一方向クラッチ（本願の第二発明）について説明する。
図５に示す一方向クラッチは、上述した本願の第一発明にかかる反対回転防止機構即ち作動歯車２及び補助歯車４と、共通の回転軸ｏの周りに回転可能な入力軸３８及び出力軸４０と、これらを収容するハウジング４２とを備えている。ハウジング４２は、上面のみが開放された略中空直方体形状の収容部４４を有する。収容部４４の一部を構成し且つ相互に対向する一対の壁面４４ａ及び４４ｂの上端部には、入力軸３８及び出力軸４０を回転可能に支持するための軸受４６が夫々形成されている。軸受４６はＵ字孔であり、壁面４４ａ及び４４ｂの上端は開放されている。入力軸３８は、断面円形の棒状である入力軸部４８と、入力軸部４８の先端に固着された入力フランジ部５０とを有する（図５乃至図７の下図においては何れも入力フランジ部５０を省略して示している）。入力フランジ部５０において、入力軸部４８が固着された側とは反対側の面には作動歯車２が固着されている。作動歯車２において、入力フランジ部５０が固着された側とは反対側の面には断面円形の凸部５２が固着されている。出力軸４０は、断面円形の棒状である出力軸部５４と、出力軸部５４の先端に固着された棒状の梁部５６とを有する。梁部５６は出力軸部５４に対して直角であり、出力軸部５４は梁部５６の長手方向の中心に固着されている。梁部５６において、出力軸部５４が固着された側とは反対側の面には円形の凹部５８が設けられている。梁部５６の長手方向両端部には断面円形の偏心軸６０が固着されている。各々の偏心軸６０は、共通の回転軸ｏから偏心した位置において共通の回転軸ｏと平行に入力軸３８側に延びている。
Next, with reference to FIG. 5, the one-way clutch (the second invention of the present application) provided with the above-described anti-rotation mechanism, which is the first invention of the present application, will be described.
The one-way clutch shown in FIG. 5 includes an anti-rotation mechanism, that is, the operating gear 2 and the auxiliary gear 4 according to the first invention of the present invention described above, and an input shaft 38 and an output shaft 40 that can rotate around a common rotational axis o. And a housing 42 for housing them. The housing 42 has a housing portion 44 having a substantially hollow rectangular parallelepiped shape whose upper surface is open. Bearings 46 for rotatably supporting the input shaft 38 and the output shaft 40 are formed at upper ends of a pair of wall surfaces 44a and 44b that constitute a part of the housing portion 44 and face each other. The bearing 46 is a U-shaped hole, and the upper ends of the wall surfaces 44a and 44b are open. The input shaft 38 has an input shaft portion 48 having a circular cross section and an input flange portion 50 fixed to the tip of the input shaft portion 48 (the input flange portion 50 is shown in the lower diagrams of FIGS. 5 to 7). Is omitted). In the input flange portion 50, the operation gear 2 is fixed to the surface opposite to the side on which the input shaft portion 48 is fixed. In the operating gear 2, a convex portion 52 having a circular cross section is fixed to the surface opposite to the side on which the input flange portion 50 is fixed. The output shaft 40 has an output shaft portion 54 having a circular cross section and a rod-shaped beam portion 56 fixed to the tip of the output shaft portion 54. The beam portion 56 is perpendicular to the output shaft portion 54, and the output shaft portion 54 is fixed to the center in the longitudinal direction of the beam portion 56. A circular concave portion 58 is provided on the surface of the beam portion 56 opposite to the side on which the output shaft portion 54 is fixed. Eccentric shafts 60 having a circular cross section are fixed to both ends of the beam portion 56 in the longitudinal direction. Each eccentric shaft 60 extends toward the input shaft 38 in parallel with the common rotation axis o at a position eccentric from the common rotation axis o.
入力軸３８及び出力軸４０は、入力軸部４８及び出力軸部５４がハウジング４２の軸受４６によって夫々回転可能に軸支されると共に、作動歯車２の凸部５２と梁部５６の凹部５８とが回転可能に嵌め合わされることで、共通の回転軸ｏの周りで回転可能となる。また、補助歯車４は偏心軸６０に嵌め合わされ、作動歯車２及び補助歯車４は相互に噛み合い回転可能な状態でハウジング４２の収容部４４内に設置される。図示の実施例においては、２個の補助歯車４が、作動歯車２を挟んで対向する位置にそれぞれ配置される。 In the input shaft 38 and the output shaft 40, the input shaft portion 48 and the output shaft portion 54 are rotatably supported by bearings 46 of the housing 42, respectively, and the convex portion 52 of the operating gear 2 and the concave portion 58 of the beam portion 56 Can be rotated around a common rotation axis o. The auxiliary gear 4 is fitted on the eccentric shaft 60, and the operating gear 2 and the auxiliary gear 4 are installed in the housing portion 44 of the housing 42 so as to mesh with each other and be rotatable. In the illustrated embodiment, two auxiliary gears 4 are arranged at positions facing each other with the operating gear 2 interposed therebetween.
図５に示す一方向クラッチの作動について図６及び図７を参照して説明する。
図６に示すとおり、入力軸３８が一方向（図６の下図において反時計方向）に回転したときは、入力軸３８の入力フランジ部５０に固着された作動歯車２と噛み合う２個の補助歯車４は共に偏心軸６０の周りで他方向（図６の下図において時計方向）に自転するのみで、補助歯車４を公転させることはない。そのため、補助歯車４が嵌め合わされた偏心軸６０を備える出力軸４０が回転することはない。一方、図７に示すとおり、入力軸３８が他方向に回転したときは、作動歯車２の歯６と補助歯車４の歯２０とが相互に干渉するため補助歯車４の自転は阻止される。ここで、補助歯車４は共通の回転軸ｏに対して偏心した偏心軸６０によって回転可能に支持されており、偏心軸６０を備える出力軸４０は共通の回転軸ｏに対して回転可能である。そのため、補助歯車４は、作動歯車２により自転が阻止されるものの作動歯車２と一体となって共通の回転軸ｏの周りを公転することとなる。図示の実施例においては、２個の補助歯車４が作動歯車２を挟んで対向する位置にそれぞれ配置されているため、作動歯車２と補助歯車４とが一体となって回転する際のバランスが良好である。以上のことから、図５に示す一方向クラッチにおいては、入力軸３８の一方向への回転は入力軸３８が空転して出力軸４０に伝達されないが、入力軸３８の他方向への回転は出力軸４０に伝達される。
The operation of the one-way clutch shown in FIG. 5 will be described with reference to FIGS.
As shown in FIG. 6, when the input shaft 38 rotates in one direction (counterclockwise in the lower diagram of FIG. 6), two auxiliary gears that mesh with the operating gear 2 fixed to the input flange portion 50 of the input shaft 38. 4 only rotates around the eccentric shaft 60 in the other direction (clockwise in the lower diagram of FIG. 6), and does not cause the auxiliary gear 4 to revolve. Therefore, the output shaft 40 including the eccentric shaft 60 fitted with the auxiliary gear 4 does not rotate. On the other hand, as shown in FIG. 7, when the input shaft 38 rotates in the other direction, the teeth 6 of the operating gear 2 and the teeth 20 of the auxiliary gear 4 interfere with each other, so that the auxiliary gear 4 is prevented from rotating. Here, the auxiliary gear 4 is rotatably supported by an eccentric shaft 60 that is eccentric with respect to the common rotating shaft o, and the output shaft 40 including the eccentric shaft 60 is rotatable with respect to the common rotating shaft o. . Therefore, although the auxiliary gear 4 is prevented from rotating by the operating gear 2, the auxiliary gear 4 revolves around the common rotation axis o together with the operating gear 2. In the illustrated embodiment, since the two auxiliary gears 4 are arranged at positions facing each other with the operating gear 2 interposed therebetween, a balance is obtained when the operating gear 2 and the auxiliary gear 4 rotate together. It is good. From the above, in the one-way clutch shown in FIG. 5, the rotation of the input shaft 38 in one direction is not transmitted to the output shaft 40 due to the idling of the input shaft 38, but the rotation of the input shaft 38 in the other direction is not performed. It is transmitted to the output shaft 40.
以上のことから、本願の第一発明の実施例である反対回転防止装置及び本願の第二発明である一方向クラッチにおいては、部品点数の削減及び組み立て容易性の観点から製造コスト及び重量を低減することが可能である。また、ローラー等の金属製部品は不要であるため、各構成部品を樹脂で製造することも可能である。各構成部品を樹脂で製造した場合には、製造コスト及び重量をより一層低減させることが可能となる。 From the above, in the counter-rotation preventing device which is an embodiment of the first invention of the present application and the one-way clutch which is the second invention of the present application, the manufacturing cost and weight are reduced from the viewpoint of reducing the number of parts and ease of assembly. Is possible. Moreover, since metal parts, such as a roller, are unnecessary, it is also possible to manufacture each component with resin. When each component is manufactured with resin, manufacturing cost and weight can be further reduced.
以上、本発明の反対回転防止機構及びこれを用いた一方向トルクリミッタの好適実施形態について詳述した。上記実施例においては、１個の作動歯車に対して１個又は２個の補助歯車が相互に噛み合わされていたが、補助歯車の個数は３個以上であってもよい。 The preferred embodiments of the counter rotation prevention mechanism and the one-way torque limiter using the same according to the present invention have been described in detail above. In the above embodiment, one or two auxiliary gears are meshed with each other, but the number of auxiliary gears may be three or more.
２：作動歯車
４：補助歯車
６：（作動歯車の）歯
８：（作動歯車の）一方の側面
１０：（作動歯車の）他方の側面
１２：（作動歯車の）歯先面
１４：円弧状凹部
１６：円弧状凸部
１８：（補助歯車の歯先に当接する）部位
２０：（補助歯車の）歯
２２：（補助歯車の）一方の側面
２４：（補助歯車の）他方の側面
２６：（補助歯車の）歯先面
2: Actuation gear 4: Auxiliary gear 6: Teeth (of the operation gear) 8: One side surface (of the operation gear) 10: The other side surface (of the operation gear) 12: Tooth surface (of the operation gear) 14: Arc shape Concave part 16: Arc-shaped convex part 18: Part (contacts the tooth tip of the auxiliary gear) 20: Teeth (of the auxiliary gear) 22: One side surface (of the auxiliary gear) 24: Other side surface (of the auxiliary gear) 26: Tooth tip surface (of auxiliary gear)
Claims (6)
前記作動歯車及び前記補助歯車には、それぞれの歯車ごとに、同一形状の複数の歯が周方向に同一間隔をおいて配置され、
前記補助歯車の歯は、周方向の両側面が対称な歯形形状に形成され、
前記作動歯車の歯は、一方の側面には、歯元部に円弧状凹部が形成され、他方の側面には、前記補助歯車の歯先に当接する部位が形成されており、
前記作動歯車が回転可能な一方向に回転したときは、前記一方の側面が前記補助歯車の歯に当接して前記補助歯車を回転させ、反対方向に回転したときは、前記他方の側面が前記補助歯車の歯先に当接して前記補助歯車にその回転中心に向けた力を作用させ、前記作動歯車及び前記補助歯車の回転が阻止されることを特徴とする反対回転防止機構。 An anti-rotation mechanism comprising an operating gear and an auxiliary gear meshing with each other, and capable of rotating in only one direction of the operating gear,
In the operating gear and the auxiliary gear, for each gear, a plurality of teeth having the same shape are arranged at the same interval in the circumferential direction,
The teeth of the auxiliary gear are formed in a tooth shape symmetrical on both side surfaces in the circumferential direction,
The tooth of the operating gear is formed with an arcuate recess in the tooth base on one side, and a portion that contacts the tooth tip of the auxiliary gear on the other side,
When the actuating gear rotates in one rotatable direction, the one side surface abuts on the teeth of the auxiliary gear to rotate the auxiliary gear, and when rotated in the opposite direction, the other side surface is A counter-rotation preventing mechanism, wherein the counter gear prevents the rotation of the operating gear and the auxiliary gear by contacting a tooth tip of the auxiliary gear and applying a force toward the rotation center of the auxiliary gear.
前記作動歯車の歯の他方の側面は、前記補助歯車と同一の標準インボリュート歯車の歯型形状に形成されている、請求項１又は２に記載の反対回転防止機構。 The teeth of the auxiliary gear are formed in a tooth shape of a standard involute gear,
The counter rotation prevention mechanism according to claim 1 or 2, wherein the other side surface of the teeth of the operating gear is formed in a tooth shape of a standard involute gear that is the same as the auxiliary gear.
前記入力軸には前記作動歯車が固着されるとともに、前記出力軸には、前記共通の回転軸から偏心した位置に偏心軸が固着され、かつ、前記補助歯車が前記偏心軸に嵌め合わされて、前記作動歯車と噛み合いながら回転可能であるよう設置されており、
前記入力軸が前記補助歯車の回転可能な方向に回転したときは、前記補助歯車が自転して前記入力軸から前記出力軸に回転が伝達されず、前記入力軸が反対方向に回転したときは、前記補助歯車の回転が阻止されて前記出力軸に回転が伝達されることを特徴とする一方向クラッチ。 A one-way clutch comprising the reverse rotation prevention mechanism according to any one of claims 1 to 4 and comprising an input shaft and an output shaft that are rotatable around a common rotation shaft,
The operating gear is fixed to the input shaft, the eccentric shaft is fixed to the output shaft at a position eccentric from the common rotating shaft, and the auxiliary gear is fitted to the eccentric shaft, It is installed so that it can rotate while meshing with the operating gear,
When the input shaft rotates in the direction in which the auxiliary gear can rotate, the auxiliary gear rotates and rotation is not transmitted from the input shaft to the output shaft, and when the input shaft rotates in the opposite direction. The one-way clutch, wherein rotation of the auxiliary gear is prevented and rotation is transmitted to the output shaft.
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| JPS52155877U (en) * | 1976-05-20 | 1977-11-26 | ||
| JPS63259270A (en) * | 1987-04-15 | 1988-10-26 | シエンペイジ | Regular-interval curve gear transmission mechanism and device for cycloid |
| US4911032A (en) * | 1988-10-03 | 1990-03-27 | Moore Push-Pin Company | One-way gear |
| DE10350934A1 (en) * | 2002-11-07 | 2004-05-27 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Freewheel unit, comprising wheels with teeth specifically shaped in order to mesh with different areas of teeth when blocked or idling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5248763A (en) * | 1975-10-16 | 1977-04-19 | Seikosha Co Ltd | Plugging gear mechanism |
| JPS52155877U (en) * | 1976-05-20 | 1977-11-26 | ||
| JPS5632674Y2 (en) * | 1976-05-20 | 1981-08-03 | ||
| JPS63259270A (en) * | 1987-04-15 | 1988-10-26 | シエンペイジ | Regular-interval curve gear transmission mechanism and device for cycloid |
| US4911032A (en) * | 1988-10-03 | 1990-03-27 | Moore Push-Pin Company | One-way gear |
| DE10350934A1 (en) * | 2002-11-07 | 2004-05-27 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Freewheel unit, comprising wheels with teeth specifically shaped in order to mesh with different areas of teeth when blocked or idling |
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