JP2010187686A - Speed changing device, and sheet opening and closing device for greenhouse with the speed changing device - Google Patents

Speed changing device, and sheet opening and closing device for greenhouse with the speed changing device Download PDF

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Publication number
JP2010187686A
JP2010187686A JP2010079906A JP2010079906A JP2010187686A JP 2010187686 A JP2010187686 A JP 2010187686A JP 2010079906 A JP2010079906 A JP 2010079906A JP 2010079906 A JP2010079906 A JP 2010079906A JP 2010187686 A JP2010187686 A JP 2010187686A
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JP
Japan
Prior art keywords
shaft
transmission
gear
speed
switching plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2010079906A
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Japanese (ja)
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JP5349392B2 (en
Inventor
Akira Noma
明 野間
Shigeki Abe
茂喜 阿部
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Watanabe Pipe Co Ltd
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Watanabe Pipe Co Ltd
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Priority to JP2010079906A priority Critical patent/JP5349392B2/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

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  • Greenhouses (AREA)
  • Structure Of Transmissions (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speed changing device improved in operability by reducing an operation force when rolling up a greenhouse sheet, and also improved in an operation efficiency when unwinding by increasing an unwinding speed when unwinding the greenhouse sheet to shorten the necessary time, and to provide a greenhouse opening and closing device with the speed changing device. <P>SOLUTION: This speed changing device for selectively outputting constant speed transmission and variable speed transmission of input into an input shaft to an output shaft connected in series therewith is so formed that a second coupling of a transmission speed switching plate is coupled with a second shaft 22 by movement operation of a switching operating member 4 so as to directly link a first shaft 21 and the second shaft 22 and perform constant speed transmission, and a first coupling of the transmission speed switching means is coupled with a first gearwheel 23 by movement operation of the switching operating member so that the first gearwheel 23 performs variable speed transmission by coupling the first shaft 21 and the second shaft 22 with a transmission gearwheel as a transmission member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、変速装置及び変速装置付温室用シート開閉装置に関するものである。   The present invention relates to a transmission and a greenhouse opening and closing device with a transmission.

従来、温室用シート開閉装置としては、温室内の温度の調節、新鮮な外気の取り入れ、
あるいは雨水の取り込み等を目的として、温室の頂部、側面部、妻面部、あるいは谷部等
に開閉自在な換気開口部が形成されている。
前記換気開口部は、開閉式の天窓装置や換気用窓である場合のほか、図１に示したよう
に温室の被覆シートのうち例えば谷部の温室用シートの下端を巻取軸に固定して、該巻取
軸を回転伝達装置を介して回転して温室用シートを巻き上げて換気開口部を大きく開放し
、または巻下ろして閉鎖する温室用シート開閉装置が広く採用されている。 Conventionally, as a greenhouse sheet opening and closing device, adjusting the temperature in the greenhouse, taking in fresh outside air,
Alternatively, for the purpose of taking in rainwater or the like, ventilation openings that can be opened and closed are formed at the top, side, wife, or valley of the greenhouse.
In addition to the case where the ventilation opening is an openable skylight device or a ventilation window, as shown in FIG. 1, the lower end of the greenhouse sheet, for example, in the valley is fixed to the winding shaft as shown in FIG. Thus, a greenhouse sheet opening / closing device that rotates the winding shaft via a rotation transmission device to wind up the greenhouse sheet to largely open the ventilation opening or to close it down by rolling down is widely used.

図２に示される、従来の温室用シート巻取装置の回転伝達装置は、温室用シートを巻き
取って換気開口部を開放した状態または閉鎖した状態で、ガイドパイプに固定されるもの
である。
上記の回転伝達装置は、温室の妻面から少し離れた位置において地面に深く挿入固定し
たガイドパイプに対し、上下方向移動自在で回転不可とされており、作業員がハンドルを
回転操作したときのみ巻取軸と連結した出力軸が回転可能で、そのとき以外は回転不可の
回転伝達機構を備えた公知のものである（実公平８−７１６２号、特公平８−６７９２号
等参照。）。この回転伝達機構は、入力軸側から出力軸側への回転トルクは伝達するが、
出力軸側から入力軸側への回転トルクの伝達は防止され、かつ、出力軸の自転が阻止され
ていて、出力軸が入力軸からの回転トルクによってのみ回転可能とされている。
この場合、出力軸と巻取軸を別体とし両者を連結する構造としても、出力軸自体を巻取
軸としてもよい。 The rotation transmission device of the conventional greenhouse sheet winder shown in FIG. 2 is fixed to the guide pipe in a state where the greenhouse sheet is wound and the ventilation opening is opened or closed.
The above-mentioned rotation transmission device is movable up and down with respect to the guide pipe that is inserted and fixed deeply in the ground at a position slightly away from the wife's wife surface, and is not allowed to rotate, and only when the operator rotates the handle The output shaft connected to the take-up shaft is rotatable, and other than that, it is a known one provided with a rotation transmission mechanism that cannot rotate (see Japanese Utility Model Publication Nos. 8-7162, 8-6792 etc.). This rotation transmission mechanism transmits rotational torque from the input shaft side to the output shaft side,
Transmission of rotational torque from the output shaft side to the input shaft side is prevented, and rotation of the output shaft is prevented, so that the output shaft can be rotated only by rotational torque from the input shaft.
In this case, the output shaft and the winding shaft may be separated and the output shaft itself may be the winding shaft.

そして、特開２００２−８７号公報(図１参照。)には、温室の谷部に配設された温室シ
ート巻取軸を回転させるためのものとして、ベース板と、先端に巻取軸連結部を有する出
力軸がベース板の一面側から他面側へ突出するように前記ベース板に取り付けられた一対
のかさ歯車又は食い違い歯車からなる歯車伝動手段と、前記歯車伝動手段の入力軸へ少な
くとも僅かに揺動するように連結され、ベース板の前記一面側へに設けられたガイド部へ
案内された状態で当該ベース板から延び出した伝動軸と、前記伝動軸の先端部に取り付け
られた操作ハンドルと、を備え、前記ベース板の前記伝動軸と相対する部分には突起状の
ストッパが形成され、前記伝動軸には当該伝動軸３が前記ベース板側へ揺動したときに前
記ストッパと係合する係合部が形成された温室用シート巻取装置が記載されている。
一方、特開２００２−１０１７６７号公報(図２参照。)には、回転伝達機構の入力軸に
連結されるハンドルの軸部が、筒状の外軸と、該外軸内に進退可能に設けられる内軸とを
有し、前記内軸を、外軸内に進入させる方向に常時付勢する弾性部材が設けられ、伸縮可
能とされたハンドルを備え、前記回転伝達機構の出力軸に連結される巻取軸を回転させて
、温室用シートを巻き取り・巻き戻しする温室用シート巻取装置が記載されている。 Japanese Patent Application Laid-Open No. 2002-87 (see FIG. 1) discloses a base plate and a winding shaft connected to a tip as a device for rotating a greenhouse sheet winding shaft disposed in a valley of a greenhouse. A gear transmission means comprising a pair of bevel gears or staggered gears attached to the base plate such that an output shaft having a portion protrudes from one side of the base plate to the other side, and at least to the input shaft of the gear transmission means A transmission shaft that is connected so as to swing slightly and is guided to a guide portion provided on the one surface side of the base plate and extended from the base plate, and attached to the tip of the transmission shaft. A protrusion-like stopper is formed on a portion of the base plate facing the transmission shaft, and the stopper is provided on the transmission shaft when the transmission shaft 3 swings toward the base plate. The engaging part that engages with Made greenhouse sheet winding device are described.
On the other hand, in JP-A-2002-101767 (see FIG. 2), a shaft portion of a handle connected to an input shaft of a rotation transmission mechanism is provided so as to be able to advance and retreat in and out of the cylindrical outer shaft. Provided with an elastic member that constantly urges the inner shaft in a direction to enter the outer shaft, and has a handle that can be extended and contracted, and is coupled to the output shaft of the rotation transmission mechanism. A greenhouse sheet winder that winds and unwinds a greenhouse sheet by rotating a winding shaft is described.

特開２００２−８７号公報Japanese Patent Laid-Open No. 2002-87 特開２００２−１０１７６７号公報JP 2002-101767 A

前記第１の従来技術の温室用シート巻取装置は、巻取軸を一方向に回転させて温室用シ
ートを巻き上げるときの巻き上げスピードと、巻取軸を逆方向に回転させて温室用シート
を巻き戻すときの巻き戻しスピードとが同一に設定されているので、温室用シートを巻き
戻すときのスピードを上げることができず、作業が非効率である。 The greenhouse sheet winder according to the first prior art is configured to rotate a winding shaft in one direction to wind up a greenhouse sheet, and to rotate the winding shaft in the opposite direction to rotate the greenhouse sheet. Since the rewind speed when rewinding is set to be the same, the speed when rewinding the greenhouse sheet cannot be increased, and the work is inefficient.

また、前記第２の従来技術の温室用シート巻取装置も、温室用シートを巻き上げるとき
には、ハンドルの腕の長さを伸張して巻き上げ時の回転トルクを大きくすることができる
ものの、温室用シートを巻き上げるときの巻き上げスピードと、温室用シートを巻き戻す
ときの巻き戻しスピードとが同一に設定されているため、このものも温室用シートを巻き
戻すときのスピードを上げることができず、巻き戻し所要時間が長くなって効率的でない
。
また、ハンドルの腕の長さを長くすると、ハンドルの操作部が操作者の身体に触れやす
くなって操作性が悪いという問題が発生することもある。 The greenhouse sheet winder according to the second prior art is also capable of increasing the rotational torque at the time of winding the greenhouse sheet by extending the length of the arm of the handle when winding the greenhouse sheet. The rewinding speed when rewinding the greenhouse sheet and the rewinding speed when rewinding the greenhouse sheet are set to be the same, so this also cannot increase the speed when rewinding the greenhouse sheet. It takes a long time and is not efficient.
Further, when the length of the arm of the handle is increased, there may be a problem that the operation portion of the handle is easy to touch the operator's body and the operability is poor.

上記したように、従来技術はいずれも、温室用シートの巻き上げ時の操作力を軽減しな
がら、温室用シートの巻き戻し時にはスピードを上げて所要時間を短くすることができな
い。 As described above, none of the conventional techniques can shorten the required time by increasing the speed when the greenhouse sheet is rewound, while reducing the operating force when the greenhouse sheet is rolled up.

以上の実状に鑑み、本発明は前記従来技術の欠点を克服し、温室用シートの巻き上げ時
の操作力を軽減して、温室の換気口を開放する際の操作性を向上する一方、温室用シート
の巻き戻し時の巻き戻しスピードを上げて、温室の換気口を閉鎖する際の所要時間を短く
して、巻き戻し時の操作効率を向上することができる変速装置及び変速装置付き温室用シ
ート巻取装置を提供することを目的とするものである。 In view of the above circumstances, the present invention overcomes the drawbacks of the prior art, reduces the operating force when rolling up the greenhouse sheet, and improves the operability when opening the ventilation opening of the greenhouse, A transmission and a greenhouse sheet with a transmission that can increase the rewinding speed at the time of rewinding the sheet, shorten the time required for closing the ventilation opening of the greenhouse, and improve the operation efficiency at the time of rewinding. The object is to provide a winding device.

上記の目的を達成するため、
本発明１は、
第１の軸と第２の軸を直列的に配置して、第１の軸への入力を第２の軸に直結した等速
伝動出力と、第１の軸への入力を第２の軸に伝動歯車を介した変速伝動出力とを、選択し
得る変速装置を提供するものである。
そして、この変速装置は、第１の軸の端部に固定された駆動歯車と、この駆動歯車に直
列に配置され、第２の軸の端部に固定された、駆動歯車とは別体の従動歯車と、駆動歯車
に噛合する第１の歯部と従動歯車に噛合する第２の歯部とを一体的に有する伝動歯車と、
を収容するインナーケーシングと、このインナーケーシングを囲繞するアウターケーシン
グを含み、駆動歯車側及び従動歯車側いずれか一方の、アウターケーシングとインナーケ
ーシングの間に配設され、インナーケーシング方向に移動して駆動歯車又は従動歯車を有
する軸とインナーケーシングを一体化することにより伝動歯車の自転を制限して等速伝動
するとともに、アウターケーシング方向に移動して駆動歯車又は従動歯車を有する軸と前
記インナーケーシングとの一体化を解除するとともにインナーケーシングとアウターケー
シングとを一体化することにより伝動歯車の自転を可能として変速伝動する伝動速度切替
手段と、伝動速度切替手段をアウターケーシングの端部外方から等速伝動と変速伝動とに
切替可能な切替操作部材と、を備え、切替操作部材の進退操作により、伝動速度切替手段
がインナーケーシング方向に移動したとき、駆動歯車が伝動歯車を連れ廻して、インナー
ケーシングを伝動部材として第１の軸と第２の軸とを直結して等速伝動する一方、伝動速
度切替手段がアウターケーシング方向に移動したとき、駆動歯車が伝動歯車を伝動部材と
して第１の軸と第２の軸とを変速伝動結合するようにされている。 To achieve the above objectives,
The present invention 1
The first axis and the second axis are arranged in series, and the constant speed transmission output in which the input to the first axis is directly connected to the second axis, and the input to the first axis is the second axis Further, the present invention provides a transmission that can select a transmission transmission output via a transmission gear.
The transmission is a drive gear fixed to the end of the first shaft and a drive gear arranged in series with the drive gear and fixed to the end of the second shaft. A transmission gear integrally having a driven gear, a first tooth portion meshing with the drive gear, and a second tooth portion meshing with the driven gear;
And an outer casing that surrounds the inner casing. The inner casing is disposed between the outer casing and the inner casing on either the drive gear side or the driven gear side, and is driven by moving toward the inner casing. The shaft having the gear or the driven gear and the inner casing are integrated to limit the rotation of the transmission gear to transmit at a constant speed, and the shaft having the drive gear or the driven gear by moving toward the outer casing and the inner casing The transmission speed switching means for shifting transmission by enabling the rotation of the transmission gear by unifying the inner casing and the outer casing, and the transmission speed switching means from the outer end of the outer casing at a constant speed A switching operation member capable of switching between transmission and shift transmission; When the transmission speed switching means moves in the direction of the inner casing by the forward / backward operation of the switching operation member, the drive gear rotates with the transmission gear, and the first shaft and the second shaft are moved with the inner casing as the transmission member. When the transmission speed switching means moves in the direction of the outer casing while being directly coupled and transmitted at a constant speed, the drive gear is configured to shift-couple the first shaft and the second shaft using the transmission gear as a transmission member. Yes.

また、本発明２は、
変速装置において、伝動歯車を駆動歯車と従動歯車の周りに、少なくとも２つ備えるよ
うにされている。 In addition, the present invention 2
In the transmission, at least two transmission gears are provided around the drive gear and the driven gear.

さらに、本発明３は、
切替操作部材は、周方向に沿って傾斜して突出する内向きカム面が形成されたアウター
ケーシング端部内壁と、アウターケーシングの駆動歯車側又は従動歯車側の端部壁に対し
出没自在のノブと、内向きカム面と係合する外向きカム面を備えてアウターケーシング端
部壁を挟んでノブと一体化されたカム板とからなる回動進退部材と、を備えるとともに、
伝動速度切替手段は、回動進退部材のカム板とインナーケーシングとの間に進退自在に
嵌合され、内面に中心に向かって突設された係止突起と、周縁部に係合凹部とを備えた伝
動速度切替プレートと、伝動速度切替プレートの周縁部の係合凹部に係合する前記アウタ
ーケーシング内周壁に形成された係合凸部と、インナーケーシング端部壁と駆動歯車側又
は従動歯車側の基端に固定されたフランジとに設けられた係止突起受入部と、カム板と伝
動速度切替プレートの間に設けられた第１弾性押圧部材と、伝動速度切替プレートとイン
ナーケーシングとの間に設けられ、第１弾性押圧部材よりも押圧力の弱い第２弾性押圧部
材と、を備えており、
回動進退部材を一方向に回動することにより、外向きカム面が内向きカム面に係合して
カム板がアウターケーシング内方に進行し、第１弾性押圧部材の押圧力により伝動速度切
替プレートをアウターケーシング内方に移動させて、その内面に突設された係止突起をイ
ンナーケーシングと第１の軸又は第２の軸の基端に取付けられたフランジとに設けられた
係止突起受入部に進入させて、第１の軸又は第２の軸とインナーケーシングを一体化して
伝動歯車の自転を制限して、駆動歯車が伝動歯車を連れ廻して、インナーケーシングを伝
動部材として第１の軸と第２の軸とを直結して等速伝動する一方、
回動進退部材を逆方向に回動することにより、両カム面の係合を離脱させて、第２弾性
押圧部材の押圧力によりカム板をアウターケーシング外方に進行させ、伝動速度切替プレ
ートの周縁部に形成された係合凹部とアウターケーシング内周壁に形成された係合凸部と
を係合させてインナーケーシングとアウターケーシングとを一体化させるとともに、その
内面に突設された係止突起をインナーケーシングに穿設された係止突起受入部まで後退さ
せてフランジとインナーケーシングの係合を解除して伝動歯車の自転を可能として、駆動
歯と従動歯と伝動歯車を噛合させて、第１の軸と第２の軸とを変速伝動結合するようにさ
れている。 Furthermore, the present invention 3
The switching operation member has an outer casing end inner wall formed with an inward cam surface that protrudes inclined along the circumferential direction, and a knob that can be protruded and retracted with respect to an end wall on the driving gear side or driven gear side of the outer casing. And a rotation advance / retreat member comprising a cam plate integrated with a knob with an outward cam surface engaged with an inward cam surface and sandwiching an outer casing end wall,
The transmission speed switching means is fitted between the cam plate of the rotation advance / retreat member and the inner casing so as to be freely advanced and retracted, and has a locking protrusion protruding toward the center on the inner surface and an engagement recess on the peripheral edge. A transmission speed switching plate provided; an engagement convex portion formed on the inner peripheral wall of the outer casing that engages with an engagement concave portion at a peripheral edge of the transmission speed switching plate; an inner casing end wall; and a drive gear side or a driven gear. A locking projection receiving portion provided on a flange fixed to the base end on the side, a first elastic pressing member provided between the cam plate and the transmission speed switching plate, a transmission speed switching plate, and an inner casing. A second elastic pressing member provided between and having a pressing force weaker than that of the first elastic pressing member,
By rotating the rotation advance / retreat member in one direction, the outward cam surface is engaged with the inward cam surface, the cam plate advances inward of the outer casing, and the transmission speed is generated by the pressing force of the first elastic pressing member. The switching plate is moved inward of the outer casing, and the locking projection provided on the inner surface of the switching plate is provided on the inner casing and the flange attached to the base end of the first shaft or the second shaft. The first shaft or the second shaft and the inner casing are integrated into the protrusion receiving portion to limit the rotation of the transmission gear, the drive gear rotates with the transmission gear, and the inner casing serves as the transmission member. While the first shaft and the second shaft are directly connected to transmit at a constant speed,
By rotating the rotation advance / retreat member in the opposite direction, the engagement of both cam surfaces is disengaged, and the cam plate is advanced outward by the pressing force of the second elastic pressing member, so that the transmission speed switching plate The engaging projection formed on the inner surface of the inner casing and the outer casing is integrated by engaging the engaging concave portion formed on the peripheral portion with the engaging convex portion formed on the inner peripheral wall of the outer casing. Is retracted to the locking projection receiving portion formed in the inner casing to release the engagement between the flange and the inner casing so that the transmission gear can rotate, and the drive gear, the driven gear and the transmission gear are meshed with each other. The first shaft and the second shaft are shift-transmission-coupled.

さらにまた、本発明４は、
温室用シート巻取軸が接続可能とされた出力軸が、ハンドルの回転軸が直接に又は長尺
回転伝達軸を介して接続された入力軸からの回転トルクによってのみ回転可能な回転制動
機構が内蔵された回転伝達装置を備えた温室用シート開閉装置において、前記ハンドルの
回転軸と前記回転伝達装置の入力軸の間、及び前記回転伝達装置の出力軸と前記温室用シ
ート巻取軸の間のいずれか一方に、駆動歯車、駆動歯車に直列に配置された別体の従動歯
車及び伝動歯車を収容するインナーケーシングと、伝動速度切替手段と、該切替手段を等
速伝動と変速伝動とに切替可能な切替操作部材と、を具備し、前記切替操作部材の切替操
作により、前記インナーケーシングを伝動部材として前記第１の軸と前記第２の軸とを直
結して等速伝動する一方、前記駆動歯車が前記伝動歯車を伝動部材として前記第１の軸と
前記第２の軸とを変速伝動結合する、前記本発明１乃至本発明３のいずれかの変速装置を
配設してある。
なお、上記の従来技術２のタイプの温室用シート巻取装置にあっては、温室用シート巻
取軸が温室用シートを巻き上げて最も高い位置にあったとしても、巻取軸は操作者の手の
届く高さに位置しているから、変速装置を必ずしも回転伝達装置の入力軸側に設ける必要
はなく、回転伝達装置の出力軸側に設けてもよい。その方がクランク型ハンドルの回転軸
を従来と同じ寸法とでき操作性がよい。 Furthermore, the present invention 4
The output shaft, to which the greenhouse sheet take-up shaft can be connected, has a rotary braking mechanism that can rotate only by rotational torque from the input shaft to which the rotary shaft of the handle is connected directly or via a long rotation transmission shaft. In a greenhouse sheet opening / closing device having a built-in rotation transmission device, between the rotation shaft of the handle and the input shaft of the rotation transmission device, and between the output shaft of the rotation transmission device and the greenhouse sheet take-up shaft. Any one of the following: a drive gear, an inner casing that houses a separate driven gear and a transmission gear arranged in series with the drive gear, a transmission speed switching means, and the switching means for constant speed transmission and transmission transmission A switching operation member that can be switched, and by the switching operation of the switching operation member, the first casing and the second shaft are connected directly at a constant speed with the inner casing as a transmission member, Above Moving gear to said first axis and said second axis to change transmission coupling the transmission gear as the transmission member, it is arranged the one of the speed change device of the present invention 1 to invention 3.
In the above-described conventional technology 2 type greenhouse winder, even if the greenhouse winder shaft is at the highest position after winding up the greenhouse sheet, the winder shaft is operated by the operator. Since it is located at a reachable height, the transmission need not necessarily be provided on the input shaft side of the rotation transmission device, but may be provided on the output shaft side of the rotation transmission device. In this way, the rotation axis of the crank type handle can be made the same size as the conventional one, and the operability is good.

請求項１に係る発明は、
第１の軸と第２の軸を直列的に配置して、第１の軸への入力を第２の軸に直結した等速
伝動出力と、第１の軸への入力を第２の軸に伝動歯車を介した変速伝動出力とを、選択し
得る請求項１に係る変速装置よりもさらにコンパクトで操作性に優れた変速装置を提供す
るものである。
そして、この変速装置は、その基部と先端部が円形軸とされるとともにその中間が角軸
とされた、前記入力軸又は前記出力軸となる第１の軸と、その周面先端部が第２の歯車と
されるとともに先端面中央部には前記第１の軸の先端部円形軸が嵌合される円形凹部が穿
設された、前記出力軸又は前記入力軸となる第２の軸と、前記第２の歯車とは軸方向に離
間して前記第１の軸の基部円形軸に回動自在に軸支された第１の歯車と、前記第１の歯車
に噛合する第１の歯部及び前記第２の歯車に噛合する第２の歯部を一体的に有し、前記第
１の歯車と前記第２の歯車との間において変速する伝動歯車と、前記第１の軸の角軸に回
転不能かつ進退自在に挿通され、前記第１の歯車と結合する第１のカップリングと前記第
２の軸と結合する第２のカップリングを備えた伝動速度切替プレートと該切替プレートを
前記第１の軸に沿って進退操作する切替操作部材とからなる伝動速度切替手段と、前記第
１の軸と前記第２の軸と前記伝動歯車と前記伝動速度切替手段を収容するケーシングと、
を具備してなり、前記切替操作部材の進退操作により、前記伝動速度切替プレートの第２
のカップリングを前記第２の軸と結合して前記第１の軸と前記第２の軸とを直結して等速
伝動する一方、前記切替操作部材の進退操作により、前記伝動速度切替手段の第１のカッ
プリングを前記第１の歯車と結合して、前記第１の歯車が前記伝動歯車を伝動部材として
前記第１の軸と前記第２の軸とを変速伝動結合するようにされている。 The invention according to claim 1
The first axis and the second axis are arranged in series, and the constant speed transmission output in which the input to the first axis is directly connected to the second axis, and the input to the first axis is the second axis Further, it is possible to provide a transmission that is more compact and excellent in operability than the transmission according to claim 1 that can select a transmission transmission output via a transmission gear.
The transmission has a first shaft serving as the input shaft or the output shaft, the base portion and the tip portion of which is a circular shaft and a middle portion thereof being a square shaft, and a tip portion of the circumferential surface thereof. And a second shaft serving as the output shaft or the input shaft, in which a circular concave portion into which the front end circular shaft of the first shaft is fitted is formed at the center of the front end surface. The first gear meshing with the first gear and the first gear that is axially separated from the second gear and pivotally supported on the base circular shaft of the first shaft. And a second gear portion that meshes with the second gear, a transmission gear that shifts between the first gear and the second gear, and an angle of the first shaft A first coupling coupled to the first gear and a second cup coupled to the second shaft are inserted into the shaft so as not to rotate and advance and retract. A transmission speed switching means comprising a transmission speed switching plate provided with a ring and a switching operation member for moving the switching plate forward and backward along the first axis; the first axis; the second axis; and the transmission A casing for housing the gear and the transmission speed switching means;
And a second of the transmission speed switching plate by the forward / backward operation of the switching operation member.
The coupling is coupled to the second shaft and directly coupled to the first shaft and the second shaft to transmit at a constant speed. A first coupling is coupled to the first gear, and the first gear performs transmission transmission coupling between the first shaft and the second shaft using the transmission gear as a transmission member. Yes.

また、請求項２に係る発明は、
変速装置において、伝動歯車を第１の歯車と従第２の歯車の周りに、少なくとも２つ備
えるようにされている。 The invention according to claim 2
In the transmission, at least two transmission gears are provided around the first gear and the second gear.

さらに、請求項３に係る発明は、
前記伝動速度切替プレートは、外周縁に溝が形成され、中央部に前記第１の軸の角軸が
貫通する角孔が穿設された円盤にて構成され、該円盤の一方の面には、前記第２の軸の先
端面外周寄り位置に複数設けられた凹部に嵌合する複数の突起が形成されるとともに、円
盤の他方の面には、前記第１の歯車に設けられた複数の突起を受け入れる複数の凹部が形
成されており、前記切替操作部材は、基端部が前記ケーシングに係止され、先端部が前記
円盤の外周溝に係合された切替板と、本体部が前記ケーシングの内方に位置するとともに
、つまみ部が前記ケーシングの外方に臨んだ操作ボタンと、一端が前記操作ボタンに他端
が前記切替板の先端側に固定された引張弾性体と、を具備しており、
操作ボタンを図７の上方向に移動するとこの操作ボタンに一端が固定された引張弾性体
の他端が切替板の先端を上方に引張ることにより円盤を上押して、円盤の上側面に形成さ
れた複数の突起が、第２の軸の先端面外周寄り位置に複数設けられた凹部に嵌合して、第
１の軸の角軸とともに回転している円盤の動きを第２の軸に伝達することにより、第１の
軸と第２の軸とを直結して等速伝動する一方、同じく操作ボタンを下方向に移動すると引
張弾性体の他端が切替板の先端を下方に引張ることにより円盤を下押して、前記第１の歯
車に設けられた複数の突起が円盤の下側面に形成された複数の凹部に嵌合して、第１の軸
の基部円形軸に回動自在に軸支された第１の歯車が第１の軸の回転運動が伝動歯車を介し
て第２の軸に伝達されて、第１の軸と第２の軸とを変速伝動結合するようにされている。 Furthermore, the invention according to claim 3
The transmission speed switching plate is composed of a disk having a groove formed on the outer peripheral edge and a square hole formed in the center portion through which the angular axis of the first shaft passes, and on one surface of the disk, A plurality of protrusions that fit into a plurality of recesses provided at positions near the outer periphery of the tip end surface of the second shaft are formed, and a plurality of protrusions provided on the first gear are formed on the other surface of the disk. A plurality of recesses for receiving protrusions are formed, and the switching operation member includes a switching plate having a base end engaged with the casing and a distal end engaged with an outer peripheral groove of the disk, and a body portion An operation button located inside the casing and having a knob facing the outside of the casing, and a tension elastic body having one end fixed to the operation button and the other end fixed to the front end side of the switching plate. And
When the operation button is moved upward in FIG. 7, the other end of the tensile elastic body having one end fixed to the operation button is formed on the upper surface of the disk by pushing the disk upward by pulling the tip of the switching plate upward. A plurality of protrusions are fitted into a plurality of recesses provided at positions near the outer periphery of the tip surface of the second shaft, and the movement of the disk rotating together with the angular axis of the first shaft is transmitted to the second shaft. As a result, the first shaft and the second shaft are directly connected and transmitted at a constant speed, and when the operation button is moved downward, the other end of the tension elastic body pulls the front end of the switching plate downward. The plurality of protrusions provided on the first gear engage with the plurality of recesses formed on the lower surface of the disk, and are pivotally supported on the base circular shaft of the first shaft. In the first gear, the rotational movement of the first shaft is transmitted to the second shaft via the transmission gear, and the first gear The shaft and the second shaft are adapted to change transmission coupling.

さらにまた、請求項４に係る発明は、
温室用シート巻取軸が接続可能とされた出力軸が、ハンドルの回転軸が直接に又は長尺
回転伝達軸を介して接続された入力軸からの回転トルクによってのみ回転可能な回転制動
機構が内蔵された回転伝達装置を備えた温室用シート開閉装置であって、
前記ハンドルの回転軸と前記回転伝達装置の入力軸の間、及び前記回転伝達装置の出力
軸と前記温室用シート巻取軸の間のいずれか一方に、入力軸又は出力軸となる第１の軸と
、その周面先端部が第２の歯車とされた出力軸又は入力軸となる第２の軸と、前記第２の
歯車とは軸方向に離間して前記第１の軸の基部に回動自在に軸支された第１の歯車と、前
記第１の歯車に噛合する第１の歯部及び前記第２の歯車に噛合する第２の歯部を一体的に
有し、前記第１の歯車と前記第２の歯車との間において変速する伝動歯車と、前記第１の
軸により回転駆動される伝動速度切替プレートと該切替プレートを前記第１の軸に沿って
進退操作する切替操作部材とからなる伝動速度切替手段と、ケーシングと、を具備し、前
記切替操作部材の進退操作により、前記伝動速度切替プレートを伝動部材として前記第１
の軸と前記第２の軸とを直結して等速伝動する一方、前記伝動歯車を伝動部材として前記
第１の軸と前記第２の軸とを変速伝動結合することにより、入力軸への入力を直列に連結
された出力軸に等速伝動と変速伝動とを選択的に出力する、請求項１乃至請求項３のいず
れかに記載された変速装置を配設してある。
なお、上記の従来技術２のタイプの温室用シート巻取装置にあっては、温室用シート巻
取軸が温室用シートを巻き上げて最も高い位置にあったとしても、巻取軸は操作者の手の
届く高さに位置しているから、変速装置を必ずしも回転伝達装置の入力軸側に設ける必要
はなく、回転伝達装置の出力軸側に設けてもよい。その方がクランク型ハンドルの回転軸
を従来と同じ寸法とでき操作性がよい。 Furthermore, the invention according to claim 4
The output shaft, to which the greenhouse sheet take-up shaft can be connected, has a rotary braking mechanism that can rotate only by rotational torque from the input shaft to which the rotary shaft of the handle is connected directly or via a long rotation transmission shaft. A greenhouse sheet opening and closing device with a built-in rotation transmission device,
A first shaft that is an input shaft or an output shaft between the rotation shaft of the handle and the input shaft of the rotation transmission device and between the output shaft of the rotation transmission device and the greenhouse sheet winding shaft. A shaft, a second shaft serving as an output shaft or an input shaft whose peripheral surface tip is a second gear, and the second gear are separated from each other in the axial direction at the base of the first shaft A first gear that is pivotally supported, a first tooth portion that meshes with the first gear, and a second tooth portion that meshes with the second gear, and A transmission gear that shifts between one gear and the second gear, a transmission speed switching plate that is rotationally driven by the first shaft, and a switch that moves the switching plate forward and backward along the first shaft. A transmission speed switching means composed of an operation member, and a casing. The first said transmission rate switching plate as transmission member
The first shaft and the second shaft are connected at a constant speed by directly connecting the second shaft and the second shaft, and the first shaft and the second shaft are coupled to the input shaft by using the transmission gear as a transmission member. The transmission according to any one of claims 1 to 3, wherein a constant speed transmission and a shift transmission are selectively output to an output shaft connected in series with an input.
In the above-described conventional technology 2 type greenhouse winder, even if the greenhouse winder shaft is at the highest position after winding up the greenhouse sheet, the winder shaft is operated by the operator. Since it is located at a reachable height, the transmission need not necessarily be provided on the input shaft side of the rotation transmission device, but may be provided on the output shaft side of the rotation transmission device. In this way, the rotation axis of the crank type handle can be made the same size as the conventional one, and the operability is good.

本発明１によれば、同一の軸心上に直列に配置された入力軸と出力軸とをギア比１：１
で直結し、あるいはそれとは異なるギア比で増速又は減速することができる変速機を、簡
単な機構で実現することができる。
このため、変速機を小型化・軽量化して、安価に製作することができる。 According to the first aspect of the present invention, an input shaft and an output shaft arranged in series on the same axis are connected with a gear ratio of 1: 1.
A transmission that can be directly connected to each other or that can increase or decrease speed with a different gear ratio can be realized with a simple mechanism.
For this reason, a transmission can be reduced in size and weight, and can be manufactured at low cost.

本発明２によれば、伝動歯車を駆動歯車と従動歯車の周りに、少なくとも２つ備えるよ
うにしたから、互いに独立した駆動歯と従動歯とを複数の伝動歯で支えることができるか
ら、駆動歯車と従動歯車の軸心を正しい位置に保持して回転の伝動を円滑化・安定化する
ことができる。 According to the second aspect of the present invention, since at least two transmission gears are provided around the drive gear and the driven gear, the drive teeth and the driven teeth that are independent from each other can be supported by the plurality of transmission teeth. The shafts of the gear and the driven gear can be held at the correct positions to smooth and stabilize the rotation transmission.

本発明３によれば、切替操作部材をアウターケーシングの一方の端部壁に対し出没自在
のノブと、アウターケーシングに形成された内向きカム面と係合する外向きカム面を備え
てアウターケーシング端部壁を挟んでノブと一体化されたカム板とからなる回動進退部材
にて構成し、また、伝動速度切替手段を、回動進退部材のカム板とインナーケーシングと
の間に進退自在に嵌合し、内面にインナーケーシング方向に向かって突設された係止突起
と、周縁部に係合凹部とを備えた伝動速度切替プレートと、伝動速度切替プレートの周縁
部の係合凹部に係合する前記アウターケーシング内周壁に中心に向かって突設された係合
凸部と、インナーケーシング端部壁と駆動歯車側又は従動歯車側の基端に固定されたフラ
ンジとに設けられた係止突起受入部と、カム板と伝動速度切替プレートの間に設けられた
第１弾性押圧部材と、伝動速度切替プレートとインナーケーシングとの間に設けられ、第
１弾性押圧部材よりも押圧力の弱い第２弾性押圧部材にて構成したので、複雑な操作を要
することなく、簡単な回動操作で変速することができる。
また、弾性押圧部材と場合によっては歯車を除く部品は全て合成樹脂にて製作可能であ
るから、変速装置をコンパクト・軽量・安価に製作することができる。 According to the third aspect of the present invention, the outer casing is provided with a knob that can be moved in and out of one end wall of the outer casing, and an outward cam surface that engages an inward cam surface formed in the outer casing. It is composed of a rotating / retracting member consisting of a cam plate integrated with the knob across the end wall, and the transmission speed switching means can be moved back and forth between the cam plate of the rotating / retracting member and the inner casing. And a transmission speed switching plate provided with a locking projection protruding on the inner surface toward the inner casing, an engagement recess on the peripheral edge, and an engagement recess on the peripheral edge of the transmission speed switching plate. Engaging projections projecting toward the center on the inner peripheral wall of the outer casing to be engaged, and an inner casing end wall and a flange fixed to the base end on the drive gear side or the driven gear side Stop projection receiver And a second elastic pressing member provided between the cam plate and the transmission speed switching plate, a second elastic pressing member provided between the transmission speed switching plate and the inner casing, and having a pressing force lower than that of the first elastic pressing member. Since the elastic pressing member is used, the speed can be changed by a simple rotation operation without requiring a complicated operation.
In addition, since the elastic pressing member and, in some cases, the parts other than the gear can be manufactured from synthetic resin, the transmission can be manufactured in a compact, lightweight, and inexpensive manner.

本発明４によれば、同一の軸心上に直列に配置された入力軸と出力軸とをギア比１：１
で直結し、あるいはそれとは異なるギア比で増速又は減速することができる変速機を、温
室用シート巻取装置の回転伝達装置の入力軸側又は出力軸側に配設することにより、温室
用シートの巻き上げ時の操作力を軽減して、温室の換気口を開放する際の操作性を向上す
る一方、温室用シートの巻き戻し時の巻き戻しスピードを上げて、温室の換気口を閉鎖す
る際の所要時間を短くして、巻き戻し時の操作効率を向上することができる変速装置付き
温室用シート巻取装置を提供することができ、さらに、複雑な操作を要することなく、簡
単な回動操作で変速することができるばかりでなく、温室用シート簡易開閉装置をコンパ
クト・軽量・安価に製作することができる。 According to the fourth aspect of the present invention, an input shaft and an output shaft arranged in series on the same axis are connected with a gear ratio of 1: 1.
By installing a transmission that can be directly connected at a speed ratio or decelerating at a different gear ratio on the input shaft side or the output shaft side of the rotation transmission device of the greenhouse sheet winder, Reduce the operating force when rolling up the seats to improve the operability when opening the greenhouse vents, while increasing the rewinding speed when unwinding the greenhouse seats and close the greenhouse vents It is possible to provide a greenhouse sheet winder with a transmission that can shorten the time required for rewinding and improve the operation efficiency at the time of rewinding, and can be easily rotated without requiring complicated operations. Not only can the gears be shifted by a dynamic operation, but a greenhouse sheet simple opening and closing device can be manufactured in a compact, lightweight and inexpensive manner.

請求項１に係る発明によれば、基本的には本発明１と同様の作用効果を奏するが、本発
明１よりもさらに、変速機を小型化・軽量化して安価に製作することができる。 According to the first aspect of the present invention, the same operational effects as the first aspect of the invention can be obtained. However, the transmission can be made smaller and lighter at a lower cost than the first aspect.

請求項２に係る発明によれば、伝動歯車を駆動歯車と従動歯車の周りに、少なくとも２
つ備えるようにしたから、互いに独立した駆動歯と従動歯とを複数の伝動歯で支えること
ができ、駆動歯車と従動歯車の軸心を正しい位置に保持して回転の伝動を円滑化・安定化
することができる。 According to the invention of claim 2, the transmission gear is arranged at least 2 around the drive gear and the driven gear.
As a result, the drive and driven teeth that are independent of each other can be supported by multiple transmission teeth, and the shafts of the drive and driven gears are held in the correct positions to facilitate and stabilize the transmission of rotation. Can be

請求項３に係る発明によれば、本発明３よりもさらに、簡単な操作で変速することがで
きる。 According to the third aspect of the present invention, it is possible to shift with a simpler operation than in the third aspect.

請求項４に係る発明によれば、巻き上げ時に等速伝動とするとともに巻き戻し時には増
速伝動とするか、あるいは、巻き上げ時に減速伝動とするとともに巻き戻し時には等速伝
動とすることにより、温室用シートの巻き上げ時の操作力を軽減して、温室の換気口を開
放する際の操作性を向上する一方、温室用シートの巻き戻し時の巻き戻しスピードを上げ
て、温室の換気口を閉鎖する際の所要時間を短くして、巻き戻し時の操作効率を向上する
ことができる変速装置付き温室用シート巻取装置を提供することができる。また、この変
速装置を請求項４に係る発明よりも小型軽量化できるとともに、等速伝動と変速伝動との
切替操作も簡単な直進運動のみとすることが可能となる。本発明４に比べてさらに、複雑
な操作を要することなく、簡単な操作で変速することができるばかりでなく、温室用シー
ト簡易開閉装置をコンパクト・軽量・安価に製作することができる。 According to the fourth aspect of the present invention, by using constant speed transmission at the time of winding and increasing speed transmission at the time of rewinding, or by decelerating transmission at the time of winding and constant speed transmission at the time of rewinding, Reduce the operating force when rolling up the seats to improve the operability when opening the greenhouse vents, while increasing the rewinding speed when unwinding the greenhouse seats and close the greenhouse vents It is possible to provide a greenhouse sheet winder with a transmission that can shorten the required time and improve the operation efficiency during rewinding. In addition, the speed change device can be made smaller and lighter than the invention according to claim 4, and the switching operation between the constant speed transmission and the speed change transmission can be performed only with a simple linear motion. Compared to the fourth aspect of the present invention, not only can the gear shift be performed with a simple operation without requiring a complicated operation, but also a greenhouse sheet simple opening / closing device can be manufactured in a compact, lightweight and inexpensive manner.

図４乃至図６に、本発明１〜３の変速装置の実施例１を示す。
図４は、本発明の変速装置の図５のＢ−Ｂ線断面図、図５は、本発明の変速装置の図４
のＡ−Ａ線部分透視図、図６は、本発明の変速装置の要部の分解斜視図である。
この変速装置は、図１に示される温室用シート巻取装置の回転伝達装置のハンドルの回
転軸に、また、図２、３に示される温室用シート巻取装置の回転伝達装置の入力軸又は出
力軸に取り付けて使用される。 4 to 6 show a first embodiment of the transmission according to the first to third aspects of the present invention.
4 is a cross-sectional view of the transmission of the present invention taken along line BB in FIG. 5, and FIG. 5 is a diagram of the transmission of the present invention.
FIG. 6 is an exploded perspective view of essential parts of the transmission of the present invention.
This transmission is provided on the rotary shaft of the rotation transmission device of the greenhouse sheet winder shown in FIG. 1, and on the input shaft of the rotation transmission device of the greenhouse sheet winder shown in FIGS. Used attached to the output shaft.

１は、本発明の第１の軸２１への入力を軸心が同一の線上に配列された、すなわち直列
に連結された第２の軸２２に等速伝動と変速伝動とを選択的に出力する変速装置本体であ
る。
１１は、第１の軸、すなわち入力軸２１の端部に固定された駆動歯車２３と、駆動歯車
に直列に配置され、第２の軸、すなわち出力軸２２の端部に固定された、駆動歯車とは別
体の従動歯車２４と、駆動歯車２３に噛合する第１の歯部２５１と従動歯車２４に噛合す
る第２の歯部２５２とを一体的に有する伝動歯車２５とを収容するインナーケーシングで
ある。
１２は、インナーケーシング１１を囲繞するアウターケーシングである。
インナーケーシング１１は、アウターケーシング１２に対して、回転自在で、上下動不
能に支持されている。
２１１は、回転ハンドルの回転軸先端部近傍に設けたグリップである。 1 shows that the input to the first shaft 21 of the present invention is selectively output of constant speed transmission and transmission transmission to the second shaft 22 whose axis centers are arranged on the same line, that is, connected in series. The transmission main body.
11 is a drive gear 23 fixed to the end of the first shaft, that is, the input shaft 21, and a drive gear disposed in series with the drive gear and fixed to the second shaft, that is, the end of the output shaft 22. Inner housing a driven gear 24 that is separate from the gear, and a transmission gear 25 that integrally includes a first tooth portion 251 that meshes with the drive gear 23 and a second tooth portion 252 that meshes with the driven gear 24. It is a casing.
An outer casing 12 surrounds the inner casing 11.
The inner casing 11 is supported with respect to the outer casing 12 so as to be rotatable and not movable up and down.
Reference numeral 211 denotes a grip provided in the vicinity of the tip of the rotary shaft of the rotary handle.

３は、伝動速度切替手段である。
この伝動速度切替手段３は、後述するカム板４３とインナーケーシング１１との間にお
いて出力軸２２に進退自在に嵌合され、アウターケーシング１２の内方である周壁面にイ
ンナーケーシング方向に向かって突設された係止突起３２及びその周縁部に係合凹部３３
を備えた伝動速度切替プレート３１を有している。
アウターケーシング１２の上方周壁には、この伝動速度切替プレート３１の周縁部に形
成された係合凹部３３に係合する係合凸部３４が形成されている。 3 is a transmission speed switching means.
The transmission speed switching means 3 is fitted to the output shaft 22 between a cam plate 43 (described later) and the inner casing 11 so as to be able to advance and retreat, and projects toward the inner casing toward the inner peripheral wall surface of the outer casing 12. The locking protrusion 32 provided and the engaging recess 33 on the peripheral edge thereof.
It has the transmission speed switching plate 31 provided with.
On the upper peripheral wall of the outer casing 12, an engaging convex portion 34 that engages with an engaging concave portion 33 formed on the peripheral edge portion of the transmission speed switching plate 31 is formed.

一方、１１１と２２２は、インナーケーシング１１の上端の壁と出力軸２２の従動歯車
２４側の基端に固定されたフランジとにそれぞれ設けられた係止突起受入部で、伝動速度
切替プレート３１の係止突起３２を受け入れ、従動歯車２４を有する出力軸２２とインナ
ーケーシング１１を一体化する。
出力軸２２とインナーケーシング１１が一体化されると、伝動歯車２５の第２の歯部２
５２は従動歯車２４にロックされて自由な回転を阻止され、入力軸２１の駆動歯車２３の
回転は、伝動歯車２５の第１の歯部２５１を連れ回した結果得られるインナーケーシング
１１の回転を通じて出力軸２２伝達される。
この伝達系は、入力軸２１と出力軸２２とのギア比が１：１の直結である。 On the other hand, 111 and 222 are engaging projection receiving portions provided on the upper wall of the inner casing 11 and the flange fixed to the proximal end of the output shaft 22 on the driven gear 24 side, respectively. The locking projection 32 is received, and the output shaft 22 having the driven gear 24 and the inner casing 11 are integrated.
When the output shaft 22 and the inner casing 11 are integrated, the second tooth portion 2 of the transmission gear 25 is obtained.
52 is locked to the driven gear 24 to prevent free rotation, and the rotation of the drive gear 23 of the input shaft 21 is caused by the rotation of the inner casing 11 obtained as a result of the rotation of the first tooth portion 251 of the transmission gear 25. The output shaft 22 is transmitted.
This transmission system is a direct connection in which the gear ratio between the input shaft 21 and the output shaft 22 is 1: 1.

４は、この変速装置１の等速伝動と変速伝動とに切り替えるための切替操作部材である
。
この切替操作部材４は、アウターケーシング１２端部内壁に周方向に沿って傾斜して突
出する内向きカム面が形成されたカム４１を備えるとともに、アウターケーシング１２の
従動歯車２４側の端部壁に対し出没自在のノブ４２と、上記内向きカム面と係合する外向
きカム面を備えてアウターケーシング１２端部壁を挟んでノブ４２と一体化されたカム板
４３と、から構成される回動進退部材を備えている。 Reference numeral 4 denotes a switching operation member for switching between the constant speed transmission and the transmission transmission of the transmission 1.
The switching operation member 4 includes a cam 41 having an inward cam surface that is inclined and protrudes along the circumferential direction on the inner wall of the end of the outer casing 12, and the end wall of the outer casing 12 on the driven gear 24 side. And a cam plate 43 provided with an outward cam surface that engages with the inward cam surface and integrated with the knob 42 with an end wall of the outer casing 12 interposed therebetween. A rotation advance / retreat member is provided.

３５は、上記カム板４３と上記伝動速度切替プレート３１の間に設けられた第１弾性押
圧部材である。これはノブ４２の回動、例えば右向きの押圧回動、に伴って進むカム板４
３の動きを上記伝動速度切替プレート３１に伝達し、この伝動速度切替プレート３１の内
面に形成された係止突起３２を、インナーケーシング１１及び出力軸２２のフランジ２２
１に穿設された係止突起受入部１１１，２２２に進入させてインナーケーシング１１と出
力軸２２のフランジ２２１を一体化して、上述のギア比１：１の直結伝達をする。 Reference numeral 35 denotes a first elastic pressing member provided between the cam plate 43 and the transmission speed switching plate 31. This is the cam plate 4 that moves along with the rotation of the knob 42, for example, the right-handed pressing rotation.
3 is transmitted to the transmission speed switching plate 31, and the locking protrusion 32 formed on the inner surface of the transmission speed switching plate 31 is connected to the flange 22 of the inner casing 11 and the output shaft 22.
The inner casing 11 and the flange 221 of the output shaft 22 are integrated into the locking projection receiving portions 111 and 222 drilled in 1, and the direct transmission with the gear ratio of 1: 1 is performed.

以下、この実施例１の増速伝動装置について説明する。
３６は、伝動速度切替プレート３１とインナーケーシング１１との間に設けられ、上記
第１弾性押圧部材３５よりも押圧力の弱い第２弾性押圧部材であり、ドーナツ状座板から
四方に延びる弾性片上記係止突起３２を受け入れる受入凹部３６２が設けられている。４
４はカム板４３の周縁部に形成されたストッパ、４５はストッパ４４、すなわちノブ４２
の回動範囲を規定する回動規制体である。
このため、上記ノブ４２の右向きの押圧回動によりカム板４３がインナーケーシング１
１方向に移動しているときは、上述したように伝動速度切替プレート３１は第１弾性押圧
部材３４の押圧力が優勢であるが、逆に、上記ノブ４２の左向きの引張回動によりカム板
４３がアウターケーシング１２方向に移動すると、この第２弾性押圧部材３６の押圧力に
より、図示しないが、伝動速度切替プレート３１はアウターケーシング１２側に移動して
、その係止突起３２が出力軸２２のフランジ２２１に形成された係止突起受入部２２２た
るの孔から脱出することによって、インナーケーシング１１と出力軸２２との一体関係が
解除される。 Hereinafter, the speed increasing transmission apparatus according to the first embodiment will be described.
36 is a second elastic pressing member provided between the transmission speed switching plate 31 and the inner casing 11 and having a pressing force weaker than that of the first elastic pressing member 35, and is an elastic piece extending in all directions from the donut-shaped seat plate. A receiving recess 362 for receiving the locking projection 32 is provided. 4
4 is a stopper formed on the peripheral edge of the cam plate 43, 45 is a stopper 44, that is, a knob 42.
It is a rotation control body which prescribes | regulates the rotation range.
For this reason, the cam plate 43 is moved to the inner casing 1 by the right-handed pressing rotation of the knob 42.
When moving in one direction, the transmission speed switching plate 31 is predominantly pressed by the first elastic pressing member 34 as described above. When 43 moves in the direction of the outer casing 12, the transmission speed switching plate 31 moves to the outer casing 12 side due to the pressing force of the second elastic pressing member 36, and the locking projection 32 is connected to the output shaft 22. The integral relationship between the inner casing 11 and the output shaft 22 is released by escaping from the hole serving as the locking projection receiving portion 222 formed on the flange 221.

一方、上記の伝動速度切替プレート３１のアウターケーシング１２側への移動により、
その周縁部に形成された係合凹部３３が、アウターケーシング１２の内方である周壁面に
中心に向かって突設された係合凸部３４と係合して、インナーケーシング１１をアウター
ケーシング１２に対して固定する。 On the other hand, due to the movement of the transmission speed switching plate 31 toward the outer casing 12 side,
Engagement recesses 33 formed on the peripheral edge engage with engagement protrusions 34 projecting toward the center on the inner peripheral wall surface of the outer casing 12, so that the inner casing 11 is moved to the outer casing 12. Fixed against.

以上の構成により、伝動速度切替プレート３１がアウターケーシング１２側に移動した
ときは、係止突起３２が出力軸２２のフランジ２２１に形成された係止突起受入部２２２
から脱出することによって、インナーケーシング１１と出力軸２２との一体関係が解除さ
れ、入力軸２１の駆動歯車２３の回転は、伝動歯車２５を介して従動歯車２４に伝達され
る。 With the above configuration, when the transmission speed switching plate 31 moves to the outer casing 12 side, the locking protrusion 32 is formed on the flange 221 of the output shaft 22.
As a result, the integral relationship between the inner casing 11 and the output shaft 22 is released, and the rotation of the drive gear 23 of the input shaft 21 is transmitted to the driven gear 24 via the transmission gear 25.

この実施例１では、駆動歯車２３の歯数を従動歯車２４の歯数より大きくしたから、こ
の変速装置は増速装置として構成されているが、駆動歯車２３と従動歯車２４を逆のギア
比とすれば減速装置を構成することができる。
また、伝動速度切替手段３と切替操作部材４は、出力軸２２側に配置してあるが、入力
軸２１側に設けてもよい。 In the first embodiment, since the number of teeth of the drive gear 23 is made larger than the number of teeth of the driven gear 24, the transmission is configured as a speed increasing device. However, the drive gear 23 and the driven gear 24 have a reverse gear ratio. If so, a reduction gear can be configured.
The transmission speed switching means 3 and the switching operation member 4 are arranged on the output shaft 22 side, but may be provided on the input shaft 21 side.

図７乃至図１０に、本発明に係る変速装置の実施例２を示す。
図７は、本発明の実施例２の変速装置の２つ割りケーシングの一方を除去した正面図、
図８は、本発明の実施例２の変速装置の伝動速度切替プレートの、上から順番にそれぞれ
、平面図、一部縦断正面図、底面図、図９は、本発明の実施例２の切替板の平面図、図１
０は、本発明の実施例２の切替操作部材の要部をケーシング内部からみた側面図である。
この変速装置は、本発明の実施例１と同様に、図１に示される温室用シート巻取装置の
回転伝達装置のハンドルの回転軸に、また、図２、３に示される温室用シート巻取装置の
回転伝達装置の入力軸又は出力軸に取り付けて使用される。 7 to 10 show a second embodiment of the transmission according to the present invention.
FIG. 7 is a front view in which one of the split casings of the transmission according to the second embodiment of the present invention is removed;
FIG. 8 is a plan view, a partially longitudinal front view, a bottom view, and FIG. 9 of the transmission speed switching plate of the transmission according to the second embodiment of the present invention in order from the top. Plan view of the plate, Fig. 1
0 is the side view which looked at the principal part of the switching operation member of Example 2 of the present invention from the inside of a casing.
As in the first embodiment of the present invention, this transmission is provided on the rotating shaft of the handle of the rotation transmission device of the greenhouse sheet winding device shown in FIG. 1 and in the greenhouse sheet winding shown in FIGS. It is used by being attached to the input shaft or output shaft of the rotation transmission device of the taking device.

この実施例２においては、前述の実施例１と同一の部品については同一の図面符号を用
いて説明することとする。
１は、本発明の入力軸又は出力軸となる第１の軸２１と、軸心が同一の線上に配列され
た、すなわち直列に連結された出力軸又は入力軸となる第２の軸２２とを、等速伝動と変
速伝動とを選択的に伝動する変速装置本体である。
この変速装置は、以上のように第１の軸と第２の軸とは相互に逆の関係で入力軸にも出
力軸にもなり得るので、説明の都合上、第１の軸２１を入力軸、第２の軸２２を出力軸と
して以下説明する。
入力軸２１は、基端部から先端部に向けて、図２、図３に示されたクランク状ハンドル
の回転軸を内嵌固定する回転軸固定部２１１と、円形軸２１２と、角軸２１３と、それに
続く円形軸２１４とを有している。これら円形軸２１２と円形軸２１４にはそれぞれ、第
１の歯車すなわち駆動歯２３と第２の歯車すなわち従動歯２４が回転自在かつ軸方向移動
不能に設けられている。なお、従動歯２４は出力軸２２と一体化されている。
２５は伝動歯で、下端に駆動歯２３に噛合する第１の歯車２５１を、上端に従動歯２４
に噛合する第２の歯車２５２を有している。 In the second embodiment, the same parts as those in the first embodiment will be described using the same reference numerals.
1 is a first shaft 21 which is an input shaft or an output shaft of the present invention, and a second shaft 22 whose axis is arranged on the same line, that is, an output shaft or an input shaft connected in series, Is a transmission main body that selectively transmits constant speed transmission and transmission transmission.
In the transmission, as described above, the first shaft and the second shaft can be the input shaft and the output shaft because they are opposite to each other. For convenience of explanation, the first shaft 21 is input. The shaft and the second shaft 22 will be described below as the output shaft.
The input shaft 21 includes a rotation shaft fixing portion 211 for internally fitting and fixing the rotation shaft of the crank-shaped handle shown in FIGS. 2 and 3 from the proximal end portion to the distal end portion, a circular shaft 212, and a square shaft 213. And a subsequent circular shaft 214. Each of the circular shaft 212 and the circular shaft 214 is provided with a first gear, that is, a drive tooth 23 and a second gear, that is, a driven tooth 24, which are rotatable and immovable in the axial direction. The driven tooth 24 is integrated with the output shaft 22.
Reference numeral 25 denotes a transmission tooth, and a first gear 251 that meshes with the drive tooth 23 at the lower end and a driven tooth 24 at the upper end.
The second gear 252 meshes with the second gear 252.

３は、伝動速度切替手段である。この伝動速度切替手段３は、入力軸２１と出力軸２２
とを、１対１の比率で直結するか、それ以外の比率で変速伝動結合するかを選択するため
の切替手段であって、入力軸２１の駆動歯車２３と結合する第１のカップリングと出力軸
２２の従動歯２４と結合する第２のカップリングを備えた伝動速度切替プレート３１と、
切替プレート３１を入力軸２１に沿って進退操作する切替操作部材４とから構成されてい
る。
この伝動速度切替プレート３１は円盤形をしており、その中心に穿設された角孔３１４
に入力軸２１の角軸２１３が挿通されて回転不能かつ進退自在とされ、その外周には断面
略Ｖ形の溝３１２が形成されている。
第１のカップリングは、伝動速度切替プレート３１の下面に円周方向に４つに分割され
た嵌合凹部３１２と、駆動歯車２３の上面に上記嵌合凹部３１２に嵌合するように、円周
方向に４つに分割して突設された嵌合突起２３１とで形成されている。
また、第２のカップリングは、伝動速度切替プレート３１の上面に円周方向に４つに分
割された嵌合突起３１１と、従動歯車２４の下面に上記嵌合突起３１１が嵌合するように
、円周方向に４つに分割して穿設された嵌合凹部２４１とで形成されている。 3 is a transmission speed switching means. The transmission speed switching means 3 includes an input shaft 21 and an output shaft 22.
And a first coupling coupled to the drive gear 23 of the input shaft 21; and a switching means for selecting whether the transmission transmission coupling is performed at a one-to-one ratio or a transmission transmission coupling at other ratios. A transmission speed switching plate 31 having a second coupling coupled to the driven tooth 24 of the output shaft 22;
The switching operation member 4 is configured to move the switching plate 31 forward and backward along the input shaft 21.
The transmission speed switching plate 31 has a disk shape, and a square hole 314 drilled in the center thereof.
A rectangular shaft 213 of the input shaft 21 is inserted into the input shaft 21 so that it cannot rotate and can move forward and backward. A groove 312 having a substantially V-shaped cross section is formed on the outer periphery thereof.
The first coupling is circular so that the fitting recess 312 is divided into four in the circumferential direction on the lower surface of the transmission speed switching plate 31 and the fitting recess 312 is fitted on the upper surface of the drive gear 23. It is formed with the fitting protrusions 231 that are divided into four in the circumferential direction.
Further, the second coupling is configured so that the fitting projection 311 divided into four in the circumferential direction on the upper surface of the transmission speed switching plate 31 and the fitting projection 311 on the lower surface of the driven gear 24 are fitted. And a fitting recess 241 formed by being divided into four in the circumferential direction.

図８の（ｂ）に示されるように、伝動速度切替プレート３１上面に形成される嵌合突起
３１１の内端は、その下面に穿設される嵌合凹部の外端よりも、径方向外側に位置するよ
うに突設されている。また、図８の（ａ）、（ｃ）に示されるように、駆動歯２３及び伝
動速度切替プレート３１の上面に突設される４つの嵌合突起の各々の周方向長さは角度表
記で約６０度とする一方、対応する嵌合凹部の各々の周方向長さは角度表記で約６５度と
してある。このため、第１、第２のカップリングは、確実に回転を相手部材に伝達するこ
とが可能であり、必用とされる伝動速度切替プレート３１の強度も確保することが可能で
ある。 As shown in FIG. 8B, the inner end of the fitting projection 311 formed on the upper surface of the transmission speed switching plate 31 is radially outside the outer end of the fitting recess formed in the lower surface. It protrudes to be located at. Further, as shown in FIGS. 8A and 8C, the circumferential lengths of the four fitting protrusions protruding from the upper surfaces of the drive teeth 23 and the transmission speed switching plate 31 are expressed in angles. On the other hand, the circumferential length of each of the corresponding fitting recesses is about 65 degrees in terms of an angle, while the angle is about 60 degrees. For this reason, the first and second couplings can reliably transmit the rotation to the mating member, and the strength of the required transmission speed switching plate 31 can be ensured.

４は、この変速装置１の等速伝動と変速伝動とに切り替えるための切替操作部材である
。図７、図９、図１０を参照して、この切替操作部材４について説明する。
５１は、上記した入力軸２１、出力軸２２、駆動歯２３、従動歯２４、伝動速度切替プ
レート３１及び切替操作部材４を所定位置に保持する金属製の保持枠である。図１０に保
持枠５１内部から切替操作部材４の一部を除いて見た図７Ａ−Ａ線矢視図を示す。図示さ
れるように、保持枠５１には縦方向に２列のスリット５３が形成されており、操作ボタン
４６と一体のスライド板４６１から保持枠内方に延びる２列の案内片４６２がこのスリッ
ト５３を貫通して、操作ボタン４６の動きを案内規制している。この案内片４６２には引
張弾性体４６５の一端を係止する係止部４６４を有する矩形固定板４６３が、保持枠５１
を挟んで螺着されている。
図１０に４６１で示されるものは、図７に示される傾斜状突起のみを表わしたものであ
り、この傾斜状突起が、引張弾性体４６５に引張られて保持枠５１の２列のスリット５３
の間に存在する操作ボタン案内部に押し付けられ、操作ボタン４６の保持枠５１表面への
接触を確実にされている。
引張弾性体４６４の他端は、後述する切替板４７の孔４７２に係止される。
図９の切替板４７の基端部４７３は、図１０の切替操作部材４の保持枠５１の切欠５２
に係止され、その先端部の係合部４７１が伝動速度切替プレート３１の外周に形成された
溝３１２に係合されている。
図７の操作ボタン４６は、その外端部をケーシング５の外側から操作可能なようにケー
シング５外に臨ませてある。
なお、この実施例では、ケーシング５とは別に保持枠５１を設けているが、ケーシング
自体に強度を持たせれば保持枠は必ずしも必要とはしない。 Reference numeral 4 denotes a switching operation member for switching between the constant speed transmission and the transmission transmission of the transmission 1. The switching operation member 4 will be described with reference to FIGS. 7, 9, and 10.
A metal holding frame 51 holds the input shaft 21, the output shaft 22, the drive teeth 23, the driven teeth 24, the transmission speed switching plate 31, and the switching operation member 4 at predetermined positions. FIG. 10 shows a view taken along line AA of FIG. 7A when viewed from the inside of the holding frame 51 except for a part of the switching operation member 4. As shown in the figure, the holding frame 51 is formed with two rows of slits 53 in the vertical direction, and two rows of guide pieces 462 extending inward from the slide plate 461 integrated with the operation buttons 46 are formed in the slits. The movement of the operation button 46 is guided and regulated through 53. A rectangular fixing plate 463 having a locking portion 464 that locks one end of the tensile elastic body 465 is provided on the guide piece 462.
It is screwed in between.
10 shows only the inclined protrusions shown in FIG. 7, and these inclined protrusions are pulled by the tensile elastic body 465 to form the two rows of slits 53 of the holding frame 51.
The operation button 46 is pressed against the surface of the holding frame 51 to be surely pressed.
The other end of the tensile elastic body 464 is locked in a hole 472 of a switching plate 47 described later.
The base end portion 473 of the switching plate 47 in FIG. 9 is a notch 52 in the holding frame 51 of the switching operation member 4 in FIG.
The engagement portion 471 at the tip end portion is engaged with a groove 312 formed on the outer periphery of the transmission speed switching plate 31.
The operation button 46 in FIG. 7 faces the outside of the casing 5 so that its outer end can be operated from the outside of the casing 5.
In this embodiment, the holding frame 51 is provided separately from the casing 5, but the holding frame is not necessarily required if the casing itself has strength.

入力軸２１と出力軸２２とを減速伝動させるときは、操作ボタン４６を下方向へ移動す
る。引張弾性体４６５が切替板４７を下に引っ張って伝動速度切替プレート３１を駆動歯
車２３方向に移動させる。すると、第１のカップリングが結合され、すなわち駆動歯車２
３の嵌合突起２３１が伝動速度切替プレート３ｌの嵌合凹部３１２に嵌合されて、入力軸
２１の回転が、角軸２１３、伝動速度切替プレート３１、駆動歯車２３、伝動歯車２５、
従動歯車２４を介して出力軸２２に伝達され、上述の減速伝動をすることとなる。 When the input shaft 21 and the output shaft 22 are decelerated and transmitted, the operation button 46 is moved downward. The tension elastic body 465 pulls the switching plate 47 downward to move the transmission speed switching plate 31 in the direction of the drive gear 23. Then, the first coupling is coupled, that is, the drive gear 2
3 is fitted into the fitting recess 312 of the transmission speed switching plate 3l, and the rotation of the input shaft 21 is caused by the rotation of the square shaft 213, the transmission speed switching plate 31, the drive gear 23, the transmission gear 25,
It is transmitted to the output shaft 22 via the driven gear 24 and performs the above-described reduction transmission.

一方、入力軸２１と出力軸２２とを１：１の比率で直結させるときは、操作ボタン４６
を上方向へ移動する。すると引張弾性体４６５が切替板４７を上に引っ張って伝動速度切
替プレート３１を従動歯車２４方向に移動させる結果、第２のカップリングが結合され、
すなわち伝動速度切替プレート３１の嵌合突起３１１が従動歯車２４の嵌合凹部２４１に
嵌合されて、入力軸２１の回転が、角軸２１３、伝動速度切替プレート３１を介して従動
歯車２４と一体化された出力軸２２伝動され、入力軸２１と出力軸２２とが１：１の比率
で直結される。 On the other hand, when the input shaft 21 and the output shaft 22 are directly connected at a ratio of 1: 1, the operation button 46 is used.
Move upward. Then, as a result of the tensile elastic body 465 pulling the switching plate 47 upward and moving the transmission speed switching plate 31 in the direction of the driven gear 24, the second coupling is coupled,
That is, the fitting projection 311 of the transmission speed switching plate 31 is fitted into the fitting recess 241 of the driven gear 24, and the rotation of the input shaft 21 is integrated with the driven gear 24 via the angular shaft 213 and the transmission speed switching plate 31. The output shaft 22 is transmitted and the input shaft 21 and the output shaft 22 are directly connected at a ratio of 1: 1.

この実施例２では、駆動歯車２３の歯数を従動歯車２４の歯数より小さくしたから、こ
の変速装置は減速装置として構成されるが、駆動歯車２３と従動歯車２４を逆のギア比と
すれば増速装置を構成することができる。
要するにこの変速装置の特徴は、直列的に配置された第１の軸と第２の軸とを、第１の
軸への入力を第２の軸に直結した等速伝動と、第１の軸への入力を第２の軸に伝動歯車を
介した変速伝動とを、簡単な構成にて選択し得る点にある。 In the second embodiment, since the number of teeth of the drive gear 23 is smaller than the number of teeth of the driven gear 24, the transmission is configured as a speed reducer. However, the drive gear 23 and the driven gear 24 have an opposite gear ratio. Thus, a speed increasing device can be configured.
In short, this speed change device is characterized in that a first shaft and a second shaft arranged in series, a constant speed transmission in which an input to the first shaft is directly connected to the second shaft, and a first shaft It is possible to select the input to the variable speed transmission via the transmission gear on the second shaft with a simple configuration.

以上説明した変速装置１の出力軸２２は、図１に示された温室用シート巻取装置に適用
するときは、長尺伝達軸の基端部に連結するのが好ましい。
また、図２に示された温室用シート巻取装置に適用する場合は、回転伝達装置の入力軸
及び出力軸のいずれか一方に連結すればよい。 The output shaft 22 of the transmission 1 described above is preferably connected to the base end portion of the long transmission shaft when applied to the greenhouse sheet winder shown in FIG.
Moreover, what is necessary is just to connect with any one of the input shaft and output shaft of a rotation transmission apparatus, when applying to the sheet | seat winding apparatus for greenhouses shown by FIG.

図１に示されたものと図２に示されたもののいずれであっても、温室用シート巻取装置
の回転伝達装置が減速機能を有するときは、この変速装置１は、温室用シートの巻き上げ
時に入力軸と出力軸とを直結し、巻き下げ時に増速するのが好ましい。 1 and FIG. 2, when the rotation transmission device of the greenhouse sheet winder has a speed reducing function, the transmission 1 winds up the greenhouse sheet. Sometimes it is preferable to connect the input shaft and the output shaft directly and increase the speed at the time of lowering.

要するに、温室用シート巻取軸が接続可能とされた出力軸が、クランク型ハンドルの回
転軸が直接に又は長尺伝達軸を介して接続された入力軸からの回転トルクによってのみ回
転可能な回転制動機構が内蔵された回転伝達装置を備えた温室用シート開閉装置において
、クランク型ハンドルの回転軸先端と回転伝達装置の入力軸の間に、本発明に係る変速装
置が配設された温室用シート開閉装置とすればよい。 In short, the output shaft to which the greenhouse sheet take-up shaft can be connected can rotate only by the rotational torque from the input shaft to which the rotation shaft of the crank type handle is connected directly or via the long transmission shaft. In a greenhouse seat opening and closing device provided with a rotation transmission device incorporating a braking mechanism, a greenhouse for which a transmission according to the present invention is disposed between a tip of a rotation shaft of a crank type handle and an input shaft of the rotation transmission device A seat opening / closing device may be used.

第１の従来技術に係る温室用シート簡易開閉装置の斜視図である。It is a perspective view of the greenhouse sheet simple opening / closing device according to the first prior art. 第２の従来技術に係る温室用シート簡易開閉装置の斜視図である。It is a perspective view of the greenhouse sheet simple opening and closing device according to the second prior art. 第２の従来技術に係る温室用シート簡易開閉装置の回転伝達装置の斜視図である。It is a perspective view of the rotation transmission device of the greenhouse sheet simple opening and closing device according to the second prior art. 本発明の実施例１の変速装置の図５のＢ−Ｂ線断面図である。FIG. 6 is a cross-sectional view taken along the line BB of FIG. 本発明の実施例１の変速装置の図４のＡ−Ａ線部分透視図である。FIG. 5 is a partial perspective view taken along line AA of FIG. 本発明の実施例１の変速装置の要部の分解斜視図である。It is a disassembled perspective view of the principal part of the transmission of Example 1 of the present invention. 本発明の実施例２の変速装置の２つ割りケーシングの一方を除去した正面図である。It is the front view which removed one of the split casings of the transmission of Example 2 of the present invention. 本発明の実施例２の変速装置の伝動速度切替プレートの、上から順番にそれぞれ、平面図、一部縦断正面図、底面図である。It is a top view, a partial longitudinal front view, and a bottom view, respectively, in order from the top of the transmission speed switching plate of the transmission of the second embodiment of the present invention. 本発明の実施例２の切替板の平面図である。It is a top view of the switch board of Example 2 of the present invention. 本発明の実施例２の切替操作部材の要部をケーシング内部からみた側面図である。It is the side view which looked at the principal part of the switching operation member of Example 2 of the present invention from the inside of a casing.

１ 変速装置本体
１１ インナーケーシング
１１１ 係止突起受入部
１２ アウターケーシング
２１ 入力軸
２１１ グリップ
２２ 出力軸
２２１ フランジ
２２２ 係止突起受入部
２３ 駆動歯車（第１の歯車）
２３１ 嵌合突起（第１のカップリング）
２４ 従動歯車（第２の歯車）
２４１ 嵌合凹部（第２のカップリング）
２５ 伝動歯車
２５１ 第１の歯部
２５２ 第２の歯部
３ 伝動速度切替手段３
３１ 伝動速度切替プレート３１
３１１ 嵌合突起（第２のカップリング）
３１２ 嵌合凹部（第１のカップリング）
３１３ 溝
３１４ 角孔
３２ 係止突起
３３ 係合凹部
３４ 係合凸部
３５ 第１弾性押圧部材
３６ 第２弾性押圧部材
３６１ 弾性片
３６２ 係止突起受入部
４ 切替操作部材
４１ カム（内向き傾斜面）
４２ ノブ(回動進退部材)
４３ カム板（外向き傾斜面、回動進退部材)
４４ ストッパ
４５ 回動規制体
４６ 操作ボタン
４６１ 引張弾性体
４７ 切替板
４７１ 先端係合部
４７２ 引張弾性体係止孔
４７３ 基端係合部
５ ケーシング DESCRIPTION OF SYMBOLS 1 Transmission device body 11 Inner casing 111 Locking protrusion receiving part 12 Outer casing 21 Input shaft 211 Grip 22 Output shaft 221 Flange 222 Locking protrusion receiving part
23 Drive gear (first gear)
231 Fitting protrusion (first coupling)
24 driven gear (second gear)
241 Fitting recess (second coupling)
25 Transmission gear 251 First tooth portion 252 Second tooth portion 3 Transmission speed switching means 3
31 Transmission speed switching plate 31
311 Mating protrusion (second coupling)
312 Fitting recess (first coupling)
313 Groove 314 Square hole 32 Engaging projection 33 Engaging recess 34 Engaging projection 35 First elastic pressing member 36 Second elastic pressing member 361 Elastic piece 362 Engaging projection receiving portion 4 Switching operation member 41 Cam (inwardly inclined surface) )
42 Knob (Rotating member)
43 Cam plate (outwardly inclined surface, rotating forward / backward member)
44 Stopper 45 Rotation Restricting Body 46 Operation Button 461 Tensile Elastic Body 47 Switching Plate 471 Tip Engaging Part 472 Tensile Elastic Body Locking Hole 473 Base End Engaging Part 5 Casing

Claims (4)

入力軸への入力を直列に連結された出力軸に等速伝動と変速伝動とを選択的に出力する
変速装置であって、
該変速装置は、
その基部と先端部が円形軸とされるとともにその中間が角軸とされた、前記入力軸又は
前記出力軸となる第１の軸と、
その周面先端部が第２の歯車とされるとともに先端面中央部には前記第１の軸の先端部
円形軸が嵌合される円形凹部が穿設された、前記出力軸又は前記入力軸となる第２の軸と
、
前記第２の歯車とは軸方向に離間して前記第１の軸の基部円形軸に回動自在に軸支され
た第１の歯車と、
前記第１の歯車に噛合する第１の歯部及び前記第２の歯車に噛合する第２の歯部を一体
的に有し、前記第１の歯車と前記第２の歯車との間において変速する伝動歯車と、
前記第１の軸の角軸に回転不能かつ進退自在に挿通され、前記第１の歯車と結合する第
１のカップリングと前記第２の軸と結合する第２のカップリングを備えた伝動速度切替プ
レートと該切替プレートを前記第１の軸に沿って進退操作する切替操作部材とからなる伝
動速度切替手段と、
前記第１の軸と前記第２の軸と前記伝動歯車と前記伝動速度切替手段を収容するケーシ
ングと、
を具備してなり、
前記切替操作部材の進退操作により、前記伝動速度切替プレートの第２のカップリング
を前記第２の軸と結合して前記第１の軸と前記第２の軸とを直結して等速伝動する一方、
前記切替操作部材の進退操作により、前記伝動速度切替手段の第１のカップリングを前
記第１の歯車と結合して、前記第１の歯車が前記伝動歯車を伝動部材として前記第１の軸
と前記第２の軸とを変速伝動結合する
変速装置。 A transmission that selectively outputs constant speed transmission and variable speed transmission to an output shaft connected in series with an input to an input shaft,
The transmission is
A first axis serving as the input shaft or the output shaft, the base portion and the distal end portion of which is a circular axis and the middle thereof is a square axis;
The output shaft or the input shaft, wherein the peripheral end portion of the peripheral surface is a second gear and a circular concave portion into which the circular end portion of the first end portion of the first shaft is fitted is formed in the central portion of the end surface. A second axis,
A first gear that is axially spaced apart from the second gear and pivotally supported on a base circular shaft of the first shaft;
A first tooth portion meshing with the first gear and a second tooth portion meshing with the second gear are integrally formed, and the speed is changed between the first gear and the second gear. A transmission gear,
A transmission speed provided with a first coupling coupled to the first gear and a second coupling coupled to the second shaft, which is inserted into the angular shaft of the first shaft so as not to rotate and to advance and retract. Transmission speed switching means comprising a switching plate and a switching operation member that moves the switching plate back and forth along the first axis;
A casing for housing the first shaft, the second shaft, the transmission gear, and the transmission speed switching means;
Comprising
By the forward / backward operation of the switching operation member, the second coupling of the transmission speed switching plate is coupled to the second shaft, and the first shaft and the second shaft are directly coupled to transmit at a constant speed. on the other hand,
By the forward / backward operation of the switching operation member, the first coupling of the transmission speed switching means is coupled to the first gear, and the first gear uses the transmission gear as the transmission member and the first shaft. A transmission that couples the second shaft with a transmission gear. 前記伝動歯車は、前記第１の歯車と前記第２の歯車の周りに、少なくとも２つ備えられ
ていることを特徴とする請求項１に記載された変速装置。 The transmission according to claim 1, wherein at least two of the transmission gears are provided around the first gear and the second gear. 前記伝動速度切替プレートは、外周縁に溝が形成され、中央部に前記第１の軸の角軸が
貫通する角孔が穿設された円盤にて構成され、該円盤の一方の面には、前記第２の軸の先
端面外周寄り位置に複数設けられた凹部に嵌合する複数の突起が形成されるとともに、円
盤の他方の面には、前記第１の歯車に設けられた複数の突起を受け入れる複数の凹部が形
成されており、
前記切替操作部材は、基端部が前記ケーシングに係止され、先端部が前記円盤の外周溝
に係合された切替板と、本体部が前記ケーシングの内方に位置するとともに、つまみ部が
前記ケーシングの外方に臨んだ操作ボタンと、一端が前記操作ボタンに他端が前記切替板
の先端側に固定された引張弾性体と、
を具備することを特徴する請求項１乃至請求項２のいずれかに記載された変速装置。 The transmission speed switching plate is composed of a disk having a groove formed on the outer peripheral edge and a square hole formed in the center portion through which the angular axis of the first shaft passes, and on one surface of the disk, A plurality of protrusions that fit into a plurality of recesses provided at positions near the outer periphery of the tip end surface of the second shaft are formed, and a plurality of protrusions provided on the first gear are formed on the other surface of the disk. A plurality of recesses for receiving the protrusions are formed,
The switching operation member includes a switching plate having a base end locked to the casing and a tip end engaged with an outer peripheral groove of the disk, a main body portion positioned inward of the casing, and a knob portion An operation button facing the outside of the casing, a tension elastic body having one end fixed to the operation button and the other end fixed to the tip side of the switching plate,
The transmission according to any one of claims 1 to 2, further comprising: 温室用シート巻取軸が接続可能とされた出力軸が、ハンドルの回転軸が直接に又は長尺
回転伝達軸を介して接続された入力軸からの回転トルクによってのみ回転可能な回転制動
機構が内蔵された回転伝達装置を備えた温室用シート開閉装置であって、
前記ハンドルの回転軸と前記回転伝達装置の入力軸の間、及び前記回転伝達装置の出力
軸と前記温室用シート巻取軸の間のいずれか一方に、入力軸又は出力軸となる第１の軸と
、その周面先端部が第２の歯車とされた出力軸又は入力軸となる第２の軸と、前記第２の
歯車とは軸方向に離間して前記第１の軸の基部に回動自在に軸支された第１の歯車と、前
記第１の歯車に噛合する第１の歯部及び前記第２の歯車に噛合する第２の歯部を一体的に
有し、前記第１の歯車と前記第２の歯車との間において変速する伝動歯車と、前記第１の
軸により回転駆動される伝動速度切替プレートと該切替プレートを前記第１の軸に沿って
進退操作する切替操作部材とからなる伝動速度切替手段と、ケーシングと、を具備し、前
記切替操作部材の進退操作により、前記伝動速度切替プレートを伝動部材として前記第１
の軸と前記第２の軸とを直結して等速伝動する一方、前記伝動歯車を伝動部材として前記
第１の軸と前記第２の軸とを変速伝動結合することにより、入力軸への入力を直列に連結
された出力軸に等速伝動と変速伝動とを選択的に出力する、請求項１乃至請求項３のいず
れかに記載された変速装置が配設されていることを特徴とする温室用シート開閉装置。 The output shaft, to which the greenhouse sheet take-up shaft can be connected, has a rotary braking mechanism that can rotate only by rotational torque from the input shaft to which the rotary shaft of the handle is connected directly or via a long rotation transmission shaft. A greenhouse sheet opening and closing device with a built-in rotation transmission device,
A first shaft that is an input shaft or an output shaft between the rotation shaft of the handle and the input shaft of the rotation transmission device and between the output shaft of the rotation transmission device and the greenhouse sheet winding shaft. A shaft, a second shaft serving as an output shaft or an input shaft whose peripheral surface tip is a second gear, and the second gear are separated from each other in the axial direction at the base of the first shaft A first gear that is pivotally supported, a first tooth portion that meshes with the first gear, and a second tooth portion that meshes with the second gear, and A transmission gear that shifts between one gear and the second gear, a transmission speed switching plate that is rotationally driven by the first shaft, and a switch that moves the switching plate forward and backward along the first shaft. A transmission speed switching means composed of an operation member, and a casing. The first said transmission rate switching plate as transmission member
The first shaft and the second shaft are connected at a constant speed by directly connecting the second shaft and the second shaft, and the first shaft and the second shaft are coupled to the input shaft by using the transmission gear as a transmission member. The transmission according to any one of claims 1 to 3, wherein a constant-speed transmission and a shift transmission are selectively output to an output shaft connected in series with the input. Greenhouse seat opening and closing device.
JP2010079906A 2004-04-19 2010-03-30 Gearbox and Greenhouse Seat Opener with Gearbox Active JP5349392B2 (en)

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JP2004123495 2004-04-19
JP2004123495 2004-04-19
JP2010079906A JP5349392B2 (en) 2004-04-19 2010-03-30 Gearbox and Greenhouse Seat Opener with Gearbox

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JP2004203634A Division JP4577875B2 (en) 2004-04-19 2004-07-09 Transmission and greenhouse sheet opening and closing device with transmission

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021181090A1 (en) * 2020-03-10 2021-09-16 Rigging Projects Ltd Hub assembly with reduction gear

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636523Y2 (en) * 1980-10-24 1988-02-24
JPH0256513U (en) * 1988-10-14 1990-04-24
JPH0752420Y2 (en) * 1989-06-30 1995-11-29 株式会社富士鉄工所 4-wheel drive transfer device
JP2505459Y2 (en) * 1990-05-02 1996-07-31 株式会社神崎高級工機製作所 Transmission structure of tractor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636523Y2 (en) * 1980-10-24 1988-02-24
JPH0256513U (en) * 1988-10-14 1990-04-24
JPH0752420Y2 (en) * 1989-06-30 1995-11-29 株式会社富士鉄工所 4-wheel drive transfer device
JP2505459Y2 (en) * 1990-05-02 1996-07-31 株式会社神崎高級工機製作所 Transmission structure of tractor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021181090A1 (en) * 2020-03-10 2021-09-16 Rigging Projects Ltd Hub assembly with reduction gear
GB2593443B (en) * 2020-03-10 2024-01-03 Rigging Projects Ltd Hub Assembly with Reduction Gear

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