JP2006022876A - Antibacterial decelerator - Google Patents

Antibacterial decelerator Download PDF

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Publication number
JP2006022876A
JP2006022876A JP2004200736A JP2004200736A JP2006022876A JP 2006022876 A JP2006022876 A JP 2006022876A JP 2004200736 A JP2004200736 A JP 2004200736A JP 2004200736 A JP2004200736 A JP 2004200736A JP 2006022876 A JP2006022876 A JP 2006022876A
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Prior art keywords
antibacterial
case
shaft
staphylococcus aureus
gear
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JP2004200736A
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Japanese (ja)
Inventor
Yoshihide Doi
良英 土肥
Michio Miyako
道雄 宮古
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Tsubaki Emerson Co
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Tsubaki Emerson Co
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Priority to JP2004200736A priority Critical patent/JP2006022876A/en
Publication of JP2006022876A publication Critical patent/JP2006022876A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an antibacterial decelerator capable of inhibiting the generation of germs such as coli bacteria, staphylococcus aureus, and methicillin-resistant staphylococcus aureus (MRSA). <P>SOLUTION: This antibacterial decelerator 10 is composed of a case 20 and a decelerating mechanism stored in the case 20, and is connected with a motor 50. A surface of the case 20 of the antibacterial decelerator 10 is coated with a coating material including an antibacterial agent. By applying the coating including the antibacterial agent onto the surface of the case 20, the generation of germs such as coli bacteria, staphylococcus aureus and methicillin-resistant staphylococcus aureus (MRSA) can be inhibited, and further the secular distortion of the coating material can be prevented by using a silver antibacterial agent. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、モータに連結される入力軸からの回転数をこれより低い回転数に減速して出力軸に伝達する減速機に関し、特に、抗菌性が付与された減速機に関する。   The present invention relates to a speed reducer that reduces the rotational speed from an input shaft connected to a motor to a lower rotational speed and transmits it to an output shaft, and particularly relates to a speed reducer provided with antibacterial properties.

動力伝動装置の主要機器である減速機は、一般産業機械のあらゆる分野に使用されており、化学、繊維、電力、鉄鋼、自動車、半導体等の電子部品産業はもとより、最近では、エネルギー・環境関連機械や食品機械、家庭用昇降機、生ゴミ処理機、医療・福祉機器などにも使用されている。   Reduction gears, which are the main components of power transmission devices, are used in all fields of general industrial machinery. Recently, not only in the electronic parts industry such as chemicals, textiles, electric power, steel, automobiles, and semiconductors, but also in energy / environment related fields. It is also used in machinery, food machinery, household elevators, garbage disposal machines, medical and welfare equipment.

例えば、図5に示すような、電動モータ110、減速機120、伝動軸130、リクライニング操作軸140等で構成されている電動式リクライニング機構を設けた形式の電動式医療ベッドがある(例えば、特許文献1。)。
減速機120は、ウォーム122と、ウォーム122に噛合するウォームホイール124で構成され、電動モータ110の回転軸にウォーム122が取付けられている。
電動モータ110を始動させると、電動モータ110の回転力は、ウォーム122、ウォームホイール124、出力軸126、伝動軸130を介して、リクライニング操作軸140に伝達され、かくして、ベッドのリクライニングが行われる。
For example, as shown in FIG. 5, there is an electric medical bed of a type provided with an electric reclining mechanism including an electric motor 110, a reduction gear 120, a transmission shaft 130, a reclining operation shaft 140, etc. Literature 1.).
The reducer 120 includes a worm 122 and a worm wheel 124 that meshes with the worm 122, and the worm 122 is attached to the rotating shaft of the electric motor 110.
When the electric motor 110 is started, the rotational force of the electric motor 110 is transmitted to the reclining operation shaft 140 via the worm 122, the worm wheel 124, the output shaft 126, and the transmission shaft 130, and thus the bed is reclined. .

従来、医療ベッドは、クランクハンドルを手で回してリクライニング作業を行わなければならず、かなりの重労働であり、病院内において多数の医療ベッドが設置されているときには、医療行為以外の労働を頻繁に看護婦又は家庭内の介護者に強いることになるという問題点を有していたが、このように、減速機及びモータを取付けることにより、看護婦又は介護者を重労働のリクライニング作業から解放することが可能となった。
国際公開WO97/015263号公報
Conventionally, a medical bed has to be reclined by turning the crank handle by hand, which is quite heavy labor, and when many medical beds are installed in a hospital, labor other than medical practice is frequently performed. In this way, the nurse or caregiver was forced to relieve the labor or reclining work by installing a reduction gear and motor. Became possible.
International Publication No. WO 97/015263

一方、医療・福祉の分野においては、衛生面に配慮が払われており、例えば、医療ベッドの場合、ベッド本体から手すりまで銀系抗菌剤を含む塗料を施したり、使用前に、ホルムアルデヒドガス滅菌を24時間行ったり、簡単な方法として、1〜2%クレゾール石けん液、70%エタノール水溶液で拭くことが行われている。   On the other hand, in the medical and welfare fields, consideration is given to hygiene. For example, in the case of a medical bed, paint containing silver antibacterial agent is applied from the bed body to the handrail, or formaldehyde gas sterilization before use. For 24 hours, or as a simple method, wiping with 1-2% cresol soap solution and 70% ethanol aqueous solution is performed.

しかし、医療・福祉機器に用いられる減速機そのものに対しては、抗菌・滅菌に対する配慮が全くなされていなかった。
特に、減速機のケース表面の塗装が、アクリルラッカー塗装、エポキシ塗装、ウレタン塗装、塩化ゴム塗装が一般になされているが、抗菌に対しての効力は低く、医療機器に施す塗料として適切なものではなかった。
However, no consideration was given to antibacterial and sterilization for the speed reducer itself used in medical and welfare equipment.
In particular, acrylic lacquer coating, epoxy coating, urethane coating, and chlorinated rubber coating are generally applied to the case surface of the reducer, but it has a low antibacterial effect and is not suitable as a coating for medical devices. There wasn't.

本発明は、ケースと、該ケース内に収納された減速機構とからなる減速機であって、前記ケース表面に抗菌剤入りの塗装が施されていることを特徴とする抗菌塗装減速機によって、前記の課題を解決した。   The present invention is a speed reducer comprising a case and a speed reduction mechanism housed in the case, wherein the case surface is coated with an antibacterial agent. The above problem has been solved.

本発明によれば、減速機のケース表面に抗菌剤入りの塗装が施されているので、減速機における大腸菌・黄色ブドウ球菌・メチシリン耐性黄色ブドウ球菌(MRSA)等の菌の発生を抑えることができる。
また、銀系抗菌剤を用いることで、経年変化を防ぐことができる。
According to the present invention, since the antibacterial coating is applied to the case surface of the speed reducer, the generation of bacteria such as Escherichia coli, Staphylococcus aureus, and methicillin resistant Staphylococcus aureus (MRSA) in the speed reducer can be suppressed. it can.
Moreover, secular change can be prevented by using a silver type antibacterial agent.

本発明の抗菌減速機の実施形態を、図1及び図2に示す。
本発明の抗菌減速機10は、図1に示すように、ケース20と、ケース20内に収納された平行軸減速機構とからなる。
図2に示すように、抗菌減速機10の平行軸減速機構は2段の歯車列からなり、モータ50からの入力軸52の先端に設けた入力段ピニオン54と、中間軸30に設けた中間段ギヤ32、及び中間軸30に設けた中間段ピニオン34と、出力軸40に設けた出力段ギヤ42とにより構成されている。
Embodiments of the antibacterial speed reducer of the present invention are shown in FIGS.
As shown in FIG. 1, the antibacterial speed reducer 10 of the present invention includes a case 20 and a parallel shaft speed reduction mechanism housed in the case 20.
As shown in FIG. 2, the parallel shaft reduction mechanism of the antibacterial reduction gear 10 includes a two-stage gear train, and an input stage pinion 54 provided at the tip of the input shaft 52 from the motor 50 and an intermediate stage provided on the intermediate shaft 30. The stage gear 32, the intermediate stage pinion 34 provided on the intermediate shaft 30, and the output stage gear 42 provided on the output shaft 40 are configured.

モータ50の入力軸52が回転すると、入力軸52の先端の入力段ピニオン54から中間軸30の中間段ギヤ32に回転が減速されて伝わり、中間軸30の中間段ピニオン34から出力軸40の出力段ギヤ42に回転がさらに減速されて伝わる。かくして、モータ50の入力軸52の回転は減速されて出力軸40に伝達され、出力軸40は所定のトルクで回転する。   When the input shaft 52 of the motor 50 rotates, the rotation is reduced and transmitted from the input stage pinion 54 at the tip of the input shaft 52 to the intermediate stage gear 32 of the intermediate shaft 30, and from the intermediate stage pinion 34 of the intermediate shaft 30 to the output shaft 40. The rotation is further reduced and transmitted to the output stage gear 42. Thus, the rotation of the input shaft 52 of the motor 50 is decelerated and transmitted to the output shaft 40, and the output shaft 40 rotates with a predetermined torque.

この抗菌減速機10のケース20表面には、抗菌剤入りの塗料による塗装が施されている。
このように、ケース20表面に抗菌剤入りの塗装を施すことで、大腸菌・黄色ブドウ球菌・メチシリン耐性黄色ブドウ球菌(MRSA)等の菌の発生を抑えることができ、また、銀系抗菌剤を用いることで、塗料の経年変化を防ぐことができる。
The surface of the case 20 of the antibacterial speed reducer 10 is painted with a paint containing an antibacterial agent.
In this way, the surface of the case 20 can be coated with an antibacterial agent to suppress the generation of bacteria such as Escherichia coli, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus (MRSA). By using it, the aging of the paint can be prevented.

ここで、抗菌剤入りの塗装を施すことについては、当業者に周知であるので詳細な説明は省略するが、例えば、特開平10−156281号公報に開示されているような、スパッタリング法で銀合金の被覆層を形成した四フッ化エチレン樹脂粒子を0.5〜20重量%の割合で混合した四フッ化エチレン樹脂3〜7重量部と芳香族ヒドロキシル基をもつ熱可塑性ポリエーテルサルフォン樹脂7〜5重量部の組成をもつ塗料を利用することができる。   Here, the application of the antibacterial agent-containing coating is well known to those skilled in the art and will not be described in detail. For example, silver is formed by sputtering as disclosed in JP-A-10-156281. Thermoplastic polyethersulfone resin having aromatic hydroxyl groups and 3 to 7 parts by weight of tetrafluoroethylene resin mixed with 0.5 to 20% by weight of tetrafluoroethylene resin particles forming an alloy coating layer A paint having a composition of 7 to 5 parts by weight can be used.

抗菌減速機10は、取付け用の脚を有する脚型式の減速機であって、しかも比較的小容量、例えば、35w〜0.4kw程度のモータ50を一体に組込んだ小型のギヤモータになっている。なお、モータ50を具えない、減速機構のみの実施形態(図示せず。)や、脚の替わりに、フランジによって取付けるフランジ型式とすることもできる。   The antibacterial speed reducer 10 is a leg type speed reducer having mounting legs, and is a small gear motor in which a motor 50 having a relatively small capacity, for example, about 35 w to 0.4 kw is integrated. Yes. It should be noted that an embodiment (not shown) having only the speed reduction mechanism without the motor 50, or a flange type that is attached by a flange instead of the leg can be used.

本発明の抗菌減速機のさらなる実施形態を、図3及び図4に示す。
本発明の抗菌減速機12は、図3に示すように、ケース22と、ケース22内に収納された直交軸減速機構からなる。
図4に示すように、抗菌減速機12の直交軸減速機構は、モータ51からの入力軸56の先端に設けた入力直交ギヤ58と、中間軸31に設けた中間直交ギヤ36、及び中間軸31に設けた中間段ギヤ38と、出力軸41に設けた出力段ギヤ44とにより構成されている。
A further embodiment of the antibacterial speed reducer of the present invention is shown in FIGS.
As shown in FIG. 3, the antibacterial speed reducer 12 of the present invention includes a case 22 and an orthogonal shaft speed reduction mechanism housed in the case 22.
As shown in FIG. 4, the orthogonal shaft reduction mechanism of the antibacterial reduction gear 12 includes an input orthogonal gear 58 provided at the tip of the input shaft 56 from the motor 51, an intermediate orthogonal gear 36 provided on the intermediate shaft 31, and an intermediate shaft. The intermediate gear 38 is provided with an intermediate gear 38 provided on the output shaft 41, and the output gear 44 provided on the output shaft 41.

モータ51の入力軸56が回転すると、モータ51の入力軸56の先端の入力直交ギヤ58から中間軸31の中間直交ギヤ36に、回転方向が直交方向に変換されて回転が伝達され、さらに、中間軸31の中間段ギヤ38から出力軸41の出力段ギヤ44に回転が減速されて伝わる。かくして、モータ51からの入力軸56の回転は、回転方向が直交方向に変換され、減速されて出力軸41に伝達され、出力軸41は所定のトルクで回転する。   When the input shaft 56 of the motor 51 rotates, the rotation direction is converted to the orthogonal direction from the input orthogonal gear 58 at the tip of the input shaft 56 of the motor 51 to the intermediate orthogonal gear 36 of the intermediate shaft 31, and the rotation is transmitted. The rotation is decelerated and transmitted from the intermediate gear 38 of the intermediate shaft 31 to the output gear 44 of the output shaft 41. Thus, the rotation of the input shaft 56 from the motor 51 is converted to the orthogonal direction, decelerated and transmitted to the output shaft 41, and the output shaft 41 rotates with a predetermined torque.

第1の実施形態の抗菌減速機10と同様、第2の実施形態の抗菌減速機12のケース22表面には、抗菌剤入りの塗料による塗装が施されている。かくして、減速機における、大腸菌・黄色ブドウ球菌・メチシリン耐性黄色ブドウ球菌(MRSA)等の菌の発生を抑えることができ、また、銀系抗菌剤を用いることで、塗料の経年変化を防ぐことができる。   Similar to the antibacterial speed reducer 10 of the first embodiment, the surface of the case 22 of the antibacterial speed reducer 12 of the second embodiment is coated with a paint containing an antibacterial agent. Thus, the generation of bacteria such as Escherichia coli, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus (MRSA) in the speed reducer can be suppressed, and the use of silver antibacterial agents can prevent changes in the paint over time. it can.

なお、これまで、本発明の抗菌減速機に用いられる減速機構として、2種類の減速機構を説明したが、これら2種類の減速機構は本発明の好適な実施形態を示したものにすぎず、本発明は、これらの減速機構に限定されるものでないことは勿論である。   In the above, two types of reduction mechanisms have been described as the reduction mechanisms used in the antibacterial reduction device of the present invention, but these two types of reduction mechanisms are merely examples of preferred embodiments of the present invention, Of course, the present invention is not limited to these reduction mechanisms.

以上説明したように、本発明によれば、減速機のケース表面に抗菌剤入りの塗装が施されているので、減速機における大腸菌・黄色ブドウ球菌・メチシリン耐性黄色ブドウ球菌(MRSA)等の菌の発生を抑えることができ、また、銀系抗菌剤を用いることで、経年変化を防ぐことができるという効果を奏する。   As described above, according to the present invention, the antibacterial agent coating is applied to the case surface of the speed reducer, so that bacteria such as Escherichia coli, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus (MRSA) are used in the speed reducer. Generation | occurrence | production of this can be suppressed, and there exists an effect that secular change can be prevented by using a silver type antibacterial agent.

本発明の第1の実施形態の抗菌減速機の側面図。The side view of the antibacterial reduction gear of the 1st Embodiment of this invention. 本発明の第1の実施形態の抗菌減速機の断面図。Sectional drawing of the antibacterial reduction gear of the 1st Embodiment of this invention. 本発明の第2の実施形態の抗菌減速機の側面図。The side view of the antibacterial reduction gear of the 2nd Embodiment of this invention. 本発明の第2の実施形態の抗菌減速機の断面図。Sectional drawing of the antibacterial reduction gear of the 2nd Embodiment of this invention. 従来の電動式リクライニング機構の説明図。Explanatory drawing of the conventional electric reclining mechanism.

符号の説明Explanation of symbols

10,12:減速機
20,22:ケース
10, 12: Reducer 20, 22: Case

Claims (2)

ケースと、該ケース内に収納された減速機構とからなる減速機であって、
前記ケース表面に抗菌剤入りの塗装が施されていることを特徴とする、
抗菌減速機。
A speed reducer comprising a case and a speed reduction mechanism housed in the case,
The case surface is coated with an antibacterial agent,
Antibacterial reducer.
前記抗菌剤が銀系抗菌剤である、請求項1の抗菌減速機。

The antibacterial reduction gear according to claim 1, wherein the antibacterial agent is a silver-based antibacterial agent.

JP2004200736A 2004-07-07 2004-07-07 Antibacterial decelerator Pending JP2006022876A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006053668A1 (en) * 2006-11-13 2008-05-15 Danfoss Bauer Gmbh gearmotor
JP2018135923A (en) * 2017-02-21 2018-08-30 住友重機械工業株式会社 Speed reducer, power transmission and series of speed reducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012048A1 (en) * 1996-09-20 1998-03-26 Hitachi, Ltd. Thin photocatalytic film and articles provided with the same
JPH11104033A (en) * 1997-10-03 1999-04-20 Nippon Wiper Blade Co Ltd Automatic towel feeding type hand wiping device
JP2000141271A (en) * 1998-11-06 2000-05-23 Matsushita Electric Ind Co Ltd Robot
JP2000141272A (en) * 1998-09-10 2000-05-23 Fanuc Ltd Industrial robot
WO2004048489A1 (en) * 2002-11-22 2004-06-10 Daikin Industries, Ltd. Coating composition, fluorine-containing laminates, and resin composition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012048A1 (en) * 1996-09-20 1998-03-26 Hitachi, Ltd. Thin photocatalytic film and articles provided with the same
JPH11104033A (en) * 1997-10-03 1999-04-20 Nippon Wiper Blade Co Ltd Automatic towel feeding type hand wiping device
JP2000141272A (en) * 1998-09-10 2000-05-23 Fanuc Ltd Industrial robot
JP2000141271A (en) * 1998-11-06 2000-05-23 Matsushita Electric Ind Co Ltd Robot
WO2004048489A1 (en) * 2002-11-22 2004-06-10 Daikin Industries, Ltd. Coating composition, fluorine-containing laminates, and resin composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006053668A1 (en) * 2006-11-13 2008-05-15 Danfoss Bauer Gmbh gearmotor
WO2008058623A1 (en) * 2006-11-13 2008-05-22 Danfoss Bauer Gmbh Gear motor
JP2018135923A (en) * 2017-02-21 2018-08-30 住友重機械工業株式会社 Speed reducer, power transmission and series of speed reducer

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