JPH053718U - Mountain gear - Google Patents
Mountain gearInfo
- Publication number
- JPH053718U JPH053718U JP4945891U JP4945891U JPH053718U JP H053718 U JPH053718 U JP H053718U JP 4945891 U JP4945891 U JP 4945891U JP 4945891 U JP4945891 U JP 4945891U JP H053718 U JPH053718 U JP H053718U
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- JP
- Japan
- Prior art keywords
- helical gear
- taper
- shaft
- helical
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
(57)【要約】
【目的】この考案は、歯の位置精度を必要とせず、所望
の噛合いを可能とした製造が容易なやまば歯車を提供す
ることを最も主要な特徴とする。
【構成】スラスト力の方向を互いに向合わせて並行に配
置した、一方を軸支持側とし、他方を軸フリ−側とした
一対のはすば歯車２ａ，２ｂを設け、これらはすば歯車
２ａ，２ｂの一方の対向する側部に同心にテ−パ部４ａ
を有した第１接続部４を設け、他方の側部に第１接続部
４のテ−パ部４ａに対して挿脱可能な逆テ−パ部６ａを
周面にもつ第２接続部６を設け、かつ第１接続部４のテ
−パ部４ａと第２接続部６のテ−パ部６ａとの間に上記
スラスト力により発生する摩擦で双方を結合させる摩擦
層８を設けたことにある。これにより、歯の位置精度は
不要のままに、相手側のやまば歯車１０との噛合せがで
き、またやまば歯車１の製造は一対のはすば歯車２ａ，
２ｂを独立して製造するだけでよく、容易である。
(57) [Abstract] [Purpose] The main feature of the present invention is to provide a helical gear that does not require the positional accuracy of teeth and is capable of desired meshing and easy to manufacture. [Structure] A pair of helical gears 2a and 2b, one of which is a shaft support side and the other of which is a shaft free side, are arranged in parallel with their thrust force directions facing each other. , 2b concentrically to one of the opposite sides of the taper part 4a
And a second connecting portion 6 having a reverse taper portion 6a which can be inserted into and removed from the taper portion 4a of the first connecting portion 4 on the other side portion. And a friction layer 8 is provided between the taper portion 4a of the first connecting portion 4 and the taper portion 6a of the second connecting portion 6 so as to couple the two by the friction generated by the thrust force. It is in. As a result, it is possible to mesh with the helical gear 10 on the mating side without the need for the positional accuracy of the teeth, and the manufacturing of the helical gear 1 is performed with a pair of helical gears 2a,
It is easy because it is only necessary to manufacture 2b independently.
Description
【０００１】[0001]
この考案は、動力を機械の各部へ伝達する動力伝達系などの要素に用いられる やまば歯車に関する。 The present invention relates to a helical gear used for elements such as a power transmission system that transmits power to various parts of a machine.
【０００２】[0002]
スラスト力による影響を解消しながら、円滑な動力の伝達を行うための歯車と して、やまば歯車がある。 やまば歯車は、自動車の動力伝達系、加工機械の動力伝達系など、多くの装置 に用いられている。 There is a helical gear as a gear for smooth transmission of power while eliminating the influence of thrust force. Bevel gears are used in many devices such as power transmission systems for automobiles and power transmission systems for processing machines.
【０００３】 従来、図２に示されるようにこうした分野に使用されるやまば歯車ｃには、工 作機械を使って歯の向きが山形となるように一組のはすば歯車ａ，ａを一体に加 工した構造が用いられている。Conventionally, as shown in FIG. 2, in a helical gear c used in such a field, a set of helical gears a and a are used so that the direction of the teeth becomes a chevron using an operating machine. The structure that is integrally processed is used.
【０００４】[0004]
ところで、やまば歯車ｃはやまば歯車同志を噛合わせて使用される。例えば図 ２に示されるように駆動軸ｃに固定した基準となる駆動歯車ｄに、従動軸ｄに固 定した従動歯車ｅを噛合わせて、駆動軸ｃの回転を従動軸ｄに伝えるといった如 く。 By the way, the helical gear c is used by engaging the helical gears. For example, as shown in FIG. 2, a reference drive gear d fixed to the drive shaft c is engaged with a driven gear e fixed to the driven shaft d to transmit the rotation of the drive shaft c to the driven shaft d. Ku.
【０００５】 この噛合いを成立させるためには、従動歯車ｅは基準となる駆動歯車ｄのやま ば歯車ｃの歯と全く同一の位置関係をもつ、やまば歯車ｃでなければならない。 この条件が成立しないと、駆動歯車ｄと従動歯車ｅとは噛合わない。In order to establish this meshing, the driven gear e must be a helical gear c having exactly the same positional relationship as the teeth of the helical gear c of the reference drive gear d. If this condition is not established, the drive gear d and the driven gear e will not mesh.
【０００６】 ところが、従来のやまば歯車ｃは、一体形なので歯の位置を精度良く設定しな ければ所望の歯車が得られない。このため、やまば歯車ｃの製造は歯の位置精度 を管理しなければならない都合上、かなり面倒なものとなっていた。However, since the conventional helical gear c is an integral type, a desired gear cannot be obtained unless the positions of the teeth are accurately set. For this reason, the manufacture of the helical gear c has been considerably troublesome because the positional accuracy of the teeth has to be controlled.
【０００７】 この考案は、このような事情に着目してなされたもので、その目的とするとこ ろは、歯の位置精度を必要とせず、所望の噛合いを可能とした製造が容易なやま ば歯車を提供することにある。The present invention has been made in view of such circumstances, and its purpose is to make the desired meshing easy and easy to manufacture without requiring the positional accuracy of the teeth. To provide gears.
【０００８】[0008]
上記目的を達成するためにこの考案のやまば歯車は、発生するスラスト力の方 向が互いに向合うように並行に配置され、かつ一方を軸支持側とし、他方を軸フ リ−側に構成してなる一対のはすば歯車と、これらはすば歯車の互いに対向する 一方の側部に同心をなして設けられた、周面にテ−パ部を形成してなる第１接続 部と、同じく他方の側部に同心をなして設けられた、前記第１接続部のテ−パ部 に対して挿脱可能に嵌挿される逆テ−パ部を周面に形成してなる第２接続部と、 前記第１接続部のテ−パ部と前記第２接続部のテ−パ部との間に介在されテ−パ 部相互を前記スラスト力により発生する摩擦で結合させる摩擦層とを設けて構成 したことにある。 In order to achieve the above object, the helical gears of the present invention are arranged in parallel so that the directions of generated thrust forces face each other, and one of them is a shaft support side and the other is a shaft free side. A pair of helical gears, and a first connecting portion that is provided concentrically on one side of the helical gears facing each other and that has a taper portion on the peripheral surface. A second taper portion, which is also concentrically provided on the other side portion, is formed on the peripheral surface so as to be insertable and removable with respect to the taper portion of the first connecting portion. A connecting portion, and a friction layer interposed between the taper portion of the first connecting portion and the taper portion of the second connecting portion to couple the taper portions with each other by friction generated by the thrust force. Is provided.
【０００９】[0009]
この考案のやまば歯車によると、例えば駆動軸などに固定された相手側のやま ば歯車で構成された駆動歯車に、従動歯車として噛合わせるときは、まず、軸支 持側のはすば歯車を、駆動側を構成するやまば歯車の一方のはすば歯車部分に噛 合わせながら従動軸に嵌挿してセットする。 According to the helical gear of the present invention, for example, when meshing as a driven gear with a driving gear composed of a mating helical gear fixed to a driving shaft or the like, first, a helical gear on the shaft supporting side is to be engaged. Is set on the driven shaft while engaging with one of the helical gears of the helical gear constituting the drive side.
【００１０】 ついで、軸フリ−側のはすば歯車を残る駆動側のやまば歯車の他方のはすば歯 車部分に噛合わせながら並行に配置させ、両者間に摩擦層を介在させつつ第１接 続部のテ−パ部と第２接続部のテ−パ部とを嵌挿させる。このとき軸フリ−側の はすば歯車は、従動軸に対してはフリ−であるから、歯の位置合わせを必要とせ ずに、駆動側と噛合う。Then, the helical gear on the shaft free side is arranged in parallel while meshing with the other helical gear portion of the remaining helical gear on the drive side, and the friction layer is interposed between the two. 1 The taper portion of the connecting portion and the taper portion of the second connecting portion are fitted and inserted. At this time, since the helical gear on the shaft free side is free with respect to the driven shaft, the helical gear meshes with the drive side without requiring tooth alignment.
【００１１】 その後、駆動軸を回転させると、駆動側のやまば歯車の片側のはすば歯車部分 で軸固定側のはすば歯車を回転させ、残る片側のはすば歯車部分で軸フリ−側の はすば歯車を回転させる。After that, when the drive shaft is rotated, the helical gear on one side of the helical gear on the drive side rotates the helical gear on the fixed side of the shaft, and the helical gear on the other side rotates to rotate the shaft. Rotate the negative side helical gear.
【００１２】 すると、発生するスラスト力を受けて、軸フリ−側のはすば歯車のテ−パ部は 軸固定側のはすば歯車のテ−パ部側へ向って変位し、相互のテ−パ部を摩擦層を 介して結合していく。 これにより、軸フリ−側のはすば歯車から軸固定側のはすば歯車へ駆動力が伝 えられる。 つまり、軸固定側のはすば歯車と軸フリ−側のはすば歯車とは、従来とやまば 歯車と同様の機能を果たすことになる。Then, due to the generated thrust force, the taper portion of the helical gear on the shaft free side is displaced toward the taper portion side of the helical gear on the shaft fixed side, and the mutual The taper part is joined through the friction layer. As a result, the driving force is transmitted from the helical gear on the shaft free side to the helical gear on the shaft fixed side. In other words, the helical gear on the shaft fixed side and the helical gear on the shaft free side perform the same function as the conventional helical gear.
【００１３】 こうした別体な一対のはすば歯車を組合わせて、動力伝達時に所望の歯車とす るやまば歯車によると、従来の一体形のやまば歯車のような歯の位置精度は全く 不要のままに、相手側の歯車との噛合せができる。 したがって、歯の位置管理の負担が少なくなる分、歯車が製造しやすくなる。According to the helical gear, which is a desired gear during power transmission, by combining a pair of separate helical gears as described above, the positional accuracy of teeth is completely different from that of the conventional integral helical gear. Can be meshed with the gear on the other side without being required. Therefore, the gears are easy to manufacture because the burden of tooth position management is reduced.
【００１４】[0014]
以下、この考案を図１に示す一実施例にもとづいて説明する。図１中、１はこ の考案を適用したやまば歯車を示す。このやまば歯車１は、左右別体とした一対 のはすば歯車２ａ，２ｂを組合わせてなる。 The present invention will be described below based on an embodiment shown in FIG. In FIG. 1, reference numeral 1 denotes a helical gear to which the present invention is applied. The helical gear 1 is composed of a pair of helical gears 2a and 2b which are separate right and left bodies.
【００１５】 すなわち、はすば歯車２ａ，２ｂは、両者間においてスラスト力の方向が互い に向合うような向きで同心に並行に配置されている。はすば歯車２ａの軸心部に は、例えば従動軸３と嵌挿するためのスプライン孔３ａが形成されている。また はすば歯車２ｂの軸心部には例えば従動軸３の外径より大きな径の孔３ｂが形成 されていて、はすば歯車２ａを軸固定側とし、はすば歯車２ｂを軸フリ−側とし てある。That is, the helical gears 2a and 2b are arranged concentrically and in parallel with each other such that the directions of the thrust forces between them are opposite to each other. A spline hole 3a is formed in the shaft center of the helical gear 2a so as to be fitted into the driven shaft 3, for example. Further, a hole 3b having a diameter larger than the outer diameter of the driven shaft 3 is formed in the shaft center portion of the helical gear 2b. It is on the − side.
【００１６】 はすば歯車２ａのはすば歯車２ｂと対向する側面には、同心位置に筒状の接続 体４（第１接続部に相当）が突設されている。この接続体４の先端側には、内周 面に傾斜面５を設けることにより形成されたテ−パ部４ａがある。On the side surface of the helical gear 2a facing the helical gear 2b, a cylindrical connecting body 4 (corresponding to a first connecting portion) is provided in a concentric position. At the tip end side of the connection body 4, there is a taper portion 4a formed by providing an inclined surface 5 on the inner peripheral surface.
【００１７】 またはすば歯車２ｂのはすば歯車２ａと対向する側面の中央には、上記接続体 ４と対応して、筒状の接続体６（第２接続部に相当）が突設されている。この接 続体６の先端側には上記テ−パ部４ａと組合うテ−パ部６ａが形成されている。Alternatively, at the center of the side surface of the helical gear 2b facing the helical gear 2a, a cylindrical connecting body 6 (corresponding to a second connecting portion) is provided so as to correspond to the connecting body 4. ing. A taper portion 6a to be combined with the taper portion 4a is formed on the tip end side of the connecting body 6.
【００１８】 すなわち、テ−パ部６ａは、接続体６の先端外周面に上記傾斜面と対応する傾 斜面７を形成することにより形成されている。このテ−パ部６ａが上記テ−パ部 ４ａに挿脱可能に嵌挿する。That is, the taper portion 6 a is formed by forming the inclined surface 7 corresponding to the above-mentioned inclined surface on the outer peripheral surface of the distal end of the connector 6. The taper portion 6a is removably fitted into the taper portion 4a.
【００１９】 またテ−パ部６ａおよびテ−パ部４ａの一方には摩擦材８（摩擦層に相当）が 設けられていて、テ−パ部６ａとテ−パ部４ａとの間に摩擦材８を介装させてい る。そして、この摩擦材８にて、軸固定側のはすば歯車２ａと軸フリ−側のはす ば歯車２ｂとを結合させている。すなわち、はすば歯車２ａとはすば歯車２ｂと は、相手側の歯車と噛合って回転すると、内向きのスラスト力を発生するので、 このときのスラスト力を利用して、はすば歯車２ａ，２ｂを内方へ変位させて、 テ−パ部４ａ，６ａの相互を摩擦材８を介して固定させるようにしてある。Further, a friction material 8 (corresponding to a friction layer) is provided on one of the taper portion 6a and the taper portion 4a, and friction is provided between the taper portion 6a and the taper portion 4a. Material 8 is inserted. The friction material 8 connects the helical gear 2a on the shaft fixed side and the helical gear 2b on the shaft free side. That is, the helical gear 2a and the helical gear 2b generate an inward thrust force when they rotate while meshing with the gear on the other side. Therefore, the thrust force at this time is used to The gears 2a and 2b are displaced inward so that the taper portions 4a and 6a are fixed to each other via the friction material 8.
【００２０】 しかして、例えば図１に示されるように駆動軸９に固定された相手側のやまば 歯車１０で構成された駆動歯車に、従動歯車としてこの考案のやまば歯車１を噛 合わせるときは、まず、軸支持側のはすば歯車２ａを、やまば歯車１０の一方の はすば歯車部分１０ａに噛合わせながら従動軸３のスプライン軸部分３ｃに嵌挿 してセットする。このとき例えば予めテ−パ部４ａには摩擦材８を貼付してある 。Therefore, for example, when the drive gear constituted by the counter gear helical gear 10 fixed to the drive shaft 9 as shown in FIG. First, the helical gear 2a on the shaft supporting side is set by being fitted into the spline shaft portion 3c of the driven shaft 3 while meshing with one helical gear portion 10a of the helical gear 10. At this time, for example, the friction material 8 is previously attached to the taper portion 4a.
【００２１】 ついで、軸フリ−側のはすば歯車２ｂを従動軸３に挿通させ、残るはすば歯車 部分１０ｂに噛合わせながら、接続体４のテ−パ部４ａに接続体６のテ−パ部６ ａを嵌挿させる。このときはすば歯車２ａは、従動軸３に対してはフリ−である から、歯の位置合わせを必要とせず、やまば歯車１０のはすば部分１０ｂと噛合 う。Next, the helical gear 2b on the shaft free side is inserted into the driven shaft 3, and the remaining helical gear portion 10b is meshed with the tapered portion 4a of the connecting body 4 to the taper portion of the connecting body 6. -Insert the pad portion 6a. At this time, since the helical gear 2a is free with respect to the driven shaft 3, the tooth alignment is not required, and the helical gear 2a meshes with the helical portion 10b of the helical gear 10.
【００２２】 これにより、はすば歯車２ａ，２ｂのセットが終える。そして、その後、動力 伝達を行うと、その動力伝達を利用して、はすば歯車２ａ，２ｂ相互の結合がな され、一体形のやまば歯車となっていく。This completes the setting of the helical gears 2a and 2b. After that, when power transmission is performed, the helical gears 2a and 2b are coupled to each other by using the power transmission to form an integral helical gear.
【００２３】 すなわち、駆動軸９を回転させると、やまば歯車１０の片側のはすば歯車部分 １０ａで軸固定側のはすば歯車２ａを回転させ、残る片側のはすば歯車部分１０ ｂで軸フリ−側のはすば歯車２ｂを回転させる。That is, when the drive shaft 9 is rotated, the helical gear portion 10a on one side of the helical gear 10 rotates the helical gear 2a on the shaft fixed side, and the remaining helical gear portion 10b on one side is rotated. Then, the helical gear 2b on the shaft free side is rotated.
【００２４】 すると、発生するスラスト力を受けて、軸フリ−側のはすば歯車２ｂのテ−パ 部６ａは軸固定側のはすば歯車２ａのテ−パ部６ｂ側へ向って変位し、相互のテ −パ部４ａ，６ａが摩擦材８を介して結合される。 これにより、軸フリ−側のはすば歯車２ｂから軸固定側のはすば歯車２ａへ駆 動力が伝えられる。 つまり、軸固定側のはすば歯車２ａと軸フリ−側のはすば歯車２ｂとは、従来 とやまば歯車と同様の機能を果たす。Then, due to the generated thrust force, the taper portion 6a of the helical gear 2b on the shaft free side is displaced toward the taper portion 6b side of the helical gear 2a on the shaft fixed side. Then, the respective taper portions 4 a and 6 a are coupled to each other via the friction material 8. As a result, the driving force is transmitted from the helical gear 2b on the shaft free side to the helical gear 2a on the shaft fixed side. That is, the helical gear 2a on the shaft fixed side and the helical gear 2b on the shaft free side perform the same function as the conventional helical gear.
【００２５】 このように左右別体なはすば歯車２ａ，２ｂを組合わせて、動力伝達時に所望 に噛合うようにしたやまば歯車によると、従来の一体形のやまば歯車で述べたよ うな歯の位置精度は全く不要のままに、相手側のやまば歯車１０との噛合せがで きる。 したがって、この考案のはすば歯車１は、歯の位置管理の負担が少なくてすむ 。 これにより、歯車の製造にあたっては、単に別体なはすば歯車２ａ，２ｂを独 立して製造するだけで良くなり、やまば歯車の製造は容易となる。As described above, according to the helical gears in which the left and right separate helical gears 2a and 2b are combined so as to mesh with each other as desired during power transmission, the conventional integral helical gears are as described above. It is possible to mesh with the helical gear 10 on the mating side without any need for tooth position accuracy. Therefore, the helical gear 1 of the present invention requires less burden on the tooth position management. Therefore, when manufacturing the gear, it is sufficient to simply manufacture the separate helical gears 2a and 2b independently, and the manufacturing of the helical gear becomes easy.
【００２６】 なお、一実施例ではテ−パ部の傾斜面に摩擦材を貼付したが、これに限らず、 例えばテ−パ部の傾斜面に摩擦材を溶射させて摩擦層を構成するようにしてもよ い。In one embodiment, the friction material is attached to the inclined surface of the taper portion, but the invention is not limited to this. For example, the friction material may be sprayed onto the inclined surface of the taper portion to form the friction layer. But you can.
【００２７】[0027]
以上説明したようにこの考案によれば、歯の位置精度を必要とせず、所望の噛 合いを可能とした製造が容易なやまば歯車を提供することができる。 As described above, according to the present invention, it is possible to provide a helical gear that does not require the positional accuracy of the teeth and that allows desired meshing and is easy to manufacture.
【図１】この考案の一実施例のやまば歯車を、それを適
用した動力伝達系の一部と共に示す一部断面した図。FIG. 1 is a partial cross-sectional view showing a helical gear according to an embodiment of the present invention together with a part of a power transmission system to which the helical gear is applied.
【図２】従来のやまば歯車を、それを適用した動力伝達
系の一部と共に示す一部断面した図。FIG. 2 is a partial cross-sectional view showing a conventional helical gear together with a part of a power transmission system to which the helical gear is applied.
１…やまば歯車、２ａ，２ｂ…はすば歯車、３…従動
軸、４…接続体（第１接続部）、４ａ…テ−パ部、６…
接続体（第２接続部）、６ａ…テ−パ部、８…摩擦材
（摩擦層）、９…駆動軸。1 ... helical gear, 2a, 2b ... helical gear, 3 ... driven shaft, 4 ... connection body (first connection portion), 4a ... taper portion, 6 ...
Connection body (second connection portion), 6a ... Taper portion, 8 ... Friction material (friction layer), 9 ... Drive shaft.
Claims (1)
うように並行に配置され、かつ一方を軸支持側とし、他
方を軸フリ−側に構成してなる一対のはすば歯車と、 これらはすば歯車の互いに対向する一方の側部に同心を
なして設けられた、周面にテ−パ部を形成してなる第１
接続部と、 同じく他方の側部に同心をなして設けられた、前記第１
接続部のテ−パ部に対して挿脱可能に嵌挿される逆テ−
パ部を周面に形成してなる第２接続部と、 前記第１接続部のテ−パ部と前記第２接続部のテ−パ部
との間に介在されテ−パ部相互を前記スラスト力により
発生する摩擦で結合させる摩擦層とを具備してなること
を特徴とするやまば歯車。[Claims for utility model registration] Claims: 1. A pair of thrust forces that are arranged in parallel so as to face each other, and one of them is a shaft support side and the other is a shaft free side. A helical gear, and a first helical gear formed concentrically on one of the opposite sides of the helical gear and having a taper portion formed on the peripheral surface thereof.
The first portion provided concentrically with the connecting portion and the other side portion.
Reverse tape that is removably inserted into the taper of the connection part
A second connecting portion having a peripheral portion formed on its peripheral surface, and a taper portion interposed between the taper portion of the first connecting portion and the taper portion of the second connecting portion. A helical gear comprising: a friction layer that is coupled by friction generated by a thrust force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4945891U JPH053718U (en) | 1991-06-27 | 1991-06-27 | Mountain gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4945891U JPH053718U (en) | 1991-06-27 | 1991-06-27 | Mountain gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH053718U true JPH053718U (en) | 1993-01-22 |
Family
ID=12831698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4945891U Withdrawn JPH053718U (en) | 1991-06-27 | 1991-06-27 | Mountain gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053718U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323966A (en) * | 2000-05-12 | 2001-11-22 | Fuji Xerox Co Ltd | Torque transmitting mechanism |
| JP2001330085A (en) * | 2000-05-22 | 2001-11-30 | Honda Motor Co Ltd | Planetary gear mechanism |
| JP2006020413A (en) * | 2004-07-01 | 2006-01-19 | Okura Yusoki Co Ltd | Magnetic interlocking device and roller conveyor |
| CN107387730A (en) * | 2017-09-21 | 2017-11-24 | 重庆威能奇传动技术有限公司 | The herringbone bear and its processing method of combining structure |
-
1991
- 1991-06-27 JP JP4945891U patent/JPH053718U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323966A (en) * | 2000-05-12 | 2001-11-22 | Fuji Xerox Co Ltd | Torque transmitting mechanism |
| JP2001330085A (en) * | 2000-05-22 | 2001-11-30 | Honda Motor Co Ltd | Planetary gear mechanism |
| JP2006020413A (en) * | 2004-07-01 | 2006-01-19 | Okura Yusoki Co Ltd | Magnetic interlocking device and roller conveyor |
| JP4587206B2 (en) * | 2004-07-01 | 2010-11-24 | オークラ輸送機株式会社 | Roller conveyor |
| CN107387730A (en) * | 2017-09-21 | 2017-11-24 | 重庆威能奇传动技术有限公司 | The herringbone bear and its processing method of combining structure |
| CN107387730B (en) * | 2017-09-21 | 2023-09-12 | 重庆斯川机械制造有限公司 | Herringbone gear with combined structure and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19950907 |