WO2020230336A1 - Chair for medical care - Google Patents

Chair for medical care Download PDF

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Publication number
WO2020230336A1
WO2020230336A1 PCT/JP2019/020090 JP2019020090W WO2020230336A1 WO 2020230336 A1 WO2020230336 A1 WO 2020230336A1 JP 2019020090 W JP2019020090 W JP 2019020090W WO 2020230336 A1 WO2020230336 A1 WO 2020230336A1
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WO
WIPO (PCT)
Prior art keywords
transmission unit
seat surface
driving force
force receiving
respect
Prior art date
Application number
PCT/JP2019/020090
Other languages
French (fr)
Japanese (ja)
Inventor
小川　和伸
Original Assignee
株式会社モリタ東京製作所
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 株式会社モリタ東京製作所 filed Critical 株式会社モリタ東京製作所
Priority to CN201980096377.2A priority Critical patent/CN113825479A/en
Publication of WO2020230336A1 publication Critical patent/WO2020230336A1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
    • A47C1/06—Hairdressers' or similar chairs, e.g. beauty salon chairs adjustable

Definitions

  • the present invention relates to a medical chair.
  • Patent Document 1 discloses a dental medical treatment device including a medical treatment sheet that supports a patient and a basin pole fixed to the medical treatment sheet.
  • An object of the present invention is to provide a medical chair capable of raising the seat surface more efficiently.
  • the medical chair to which the present invention is applied is provided so as to be able to move up and down, and is a seat surface that supports the patient from below and a support portion that supports the seat surface from below.
  • a support portion that is rotatably provided around a rotation axis that is located below and extends in the lateral direction, and a support portion that is movably provided around the rotation axis, and the support portion is rotated around the rotation axis to describe the above.
  • a driving force receiving portion that receives a driving force for raising the seat surface and a transmitting portion that transmits the driving force to the driving force receiving portion, and the inclination with respect to the floor surface increases as the seat surface rises. It is a medical chair equipped with a transmission unit.
  • the transmission unit can be characterized in that a part of the transmission unit is pulled upward by the driving force receiving unit that rises as the seat surface rises, and the inclination with respect to the floor surface becomes large. Further, a drive source for generating a driving force supplied to the transmission unit is further provided, and the drive source is attached to the transmission unit having a large inclination, so that the posture of the drive source with respect to the transmission unit is constant. It can be characterized by being retained. Further, when the angle with respect to the floor surface increases, the transmission unit rotates around the center of rotation of the transmission unit and the angle with respect to the floor surface increases, so that the seat surface changes from the most lowered state to the most raised state.
  • FIG. 2 is a diagram showing an internal structure of a portion indicated by reference numeral III in FIG.
  • FIG. 4 is a view when a part of the elevating mechanism is viewed from the direction of arrow IV in FIG. It is a figure which showed the elevating mechanism after the seat surface was raised. It is a figure which showed the comparative example of the elevating mechanism.
  • FIG. 1 is a perspective view showing the overall configuration of the dental medical treatment apparatus 1 according to the present embodiment.
  • a medical treatment chair 2 that supports the patient from below is provided on the floor surface.
  • the medical chair 2 used in dentistry will be described, but the medical chair 2 of the present embodiment is used not only for dentistry but also for medical treatment in other departments such as otolaryngology and internal medicine. May be good.
  • the medical chair 2 includes a seat plate 2b that can be raised and lowered.
  • the upper surface of the seat plate 2b has a seat surface of 2 g, and in the present embodiment, when the patient sits on the medical chair 2, the buttocks of the patient are supported from below by the seat surface 2 g. Further, below the medical chair 2, an elevating mechanism 2a for elevating and lowering the seat surface 2g is provided below the medical chair 2, below the medical chair 2, an elevating mechanism 2a for elevating and lowering the seat surface 2g is provided below the medical chair 2,
  • the medical chair 2 is provided with a back plate 2c having one end attached to the seat plate 2b and rotating around the one end, and a headrest 2d attached to the back plate 2c to support the patient's head. Further, a leg support portion 2e that supports the patient's leg from below is provided on the side of the seat plate 2b and opposite to the back plate 2c.
  • the back plate 2c is in a sleeping state, but when the patient sits on the medical chair 2, the back plate 2c is in an upright state. Then, when the patient sits on the medical chair 2, the back plate 2c falls down according to the instruction from the doctor or the like, and the back plate 2c falls asleep.
  • a tray table 3 for a doctor is provided beside a medical chair 2, and an instrument holder 10 for a doctor is further provided. Further, an instrument holder 4 for an assistant is provided on the opposite side of the tray table 3 across the medical chair 2. Further, a dental lighting device 100 that irradiates the patient's oral cavity with light, an arm 6b that supports the dental lighting device 100, and a support column 6c that supports the arm 6b are provided.
  • the dental instrument holder 10 and the assistant instrument holder 4 are held so that the dental instrument holder 11 can be freely inserted and removed (in FIG. 1, the assistant's medical treatment). Only the tool 11 is shown).
  • Examples of the medical instrument 11 for doctors include an air turbine handpiece, a micromotor handpiece, a scaler, a three-way syringe, a root canal length measuring device, a root canal enlarger, and an intraoral camera.
  • a suction instrument 20 for sucking saliva, blood, cutting debris, etc. (hereinafter, may be referred to as “waste liquid”) in the oral cavity of the patient can be mentioned. ..
  • the instrument holder 4 supports a suction syringe (vacuum syringe) 21 and a saliva ejector 22 as an example of the suction device 20.
  • Each of the suction devices 20 is connected to an intake source (described later) (not shown) such as a vacuum pump or a compressor, and suction is performed by the intake source to suck the waste liquid.
  • a supply device (spitton device) 5 for supplying water to a cup used by the patient for gargling is provided beside the medical chair 2.
  • the supply device 5 includes a base unit 51, a waste liquid receiving unit (baseon) 52 that receives the waste liquid discharged from the patient's oral cavity, a water supply unit 53 for the cup that supplies water to the cup, and a waste liquid receiving unit for cleaning water.
  • a cleaning water supply unit 54 that supplies water to 52 is provided.
  • the supply device 5 is provided with a storage container (suction tank) 60 for storing the waste liquid inside the base unit 51.
  • the storage container 60 contains the waste liquid (waste liquid sucked from the patient's oral cavity) sucked by the suction device 20 (suction syringe 21, saliva ejector 22, etc.).
  • FIG. 2 is a view when the medical chair 2 is viewed from the direction of arrow II in FIG.
  • the illustration of the headrest 2d shown in FIG. 1 is omitted.
  • FIG. 2 shows a state in which the back plate 2c stands upright.
  • an elevating mechanism 2a for raising and lowering the seat surface 2g is provided below the seat surface 2g.
  • the elevating mechanism 2a includes a motor (described later), and drives the motor to elevate and lower the seat surface 2g.
  • FIG. 3 is a diagram showing the internal structure of the portion indicated by reference numeral III in FIG.
  • FIG. 4 is a view when a part of the elevating mechanism 2a is viewed from the direction of arrow IV of FIG. 3 (from the back side and the upper side of the paper surface of FIG. 3).
  • the elevating mechanism 2a of the present embodiment is provided with a support portion (support member) 40 that supports the seat surface 2 g from below.
  • the mode of supporting the seat surface 2g (see FIG. 2) by the support portion 40 is not limited to the mode in which the support portion 40 directly supports the seat surface 2g, and another member is provided between the support portion 40 and the seat surface 2g. Also includes an embodiment in which the support portion 40 supports the seat surface 2 g via other members.
  • the support portion 40 shown in FIG. 3 has a U-shape in cross section on a plane orthogonal to the longitudinal direction of the support portion 40. Further, the support portion 40 is provided so as to extend obliquely downward from the upper side on which the seat surface 2g is provided. Further, in the present embodiment, the first rotating shaft 61, which is located below the seat surface 2g and extends in the lateral direction (horizontal direction), is provided. The support portion 40 rotates about the first rotation shaft 61.
  • a plate-shaped pedestal 71 arranged along the floor surface, and a first support frame 721 and a second support frame 722 extending upward from the pedestal 71 and arranged facing each other are provided.
  • the end portion of the first rotating shaft 61 is supported by the first support frame 721 and the second support frame 722.
  • a motor M is provided as an example of a drive source.
  • the seat surface 2g is raised and lowered by the motor M.
  • a driving force receiving portion 73 for receiving a driving force (driving force from the motor M) for raising and lowering the seat surface 2g is provided.
  • a transmission unit 74 for transmitting the driving force from the motor M to the driving force receiving unit 73 is provided.
  • the driving force receiving portion 73 is provided so as to be movable around the first rotating shaft 61.
  • the driving force receiving portion 73 rotates the support portion 40 around the first rotation shaft 61 to raise the seat surface 2g.
  • a protruding portion 75 that is attached to the support portion 40 and protrudes downward is provided.
  • a driving force receiving portion 73 is provided at the tip portion of the protruding portion 75 in the protruding direction.
  • the driving force receiving portion 73 is formed of a cylindrical member having a female screw formed on the inner peripheral surface, and the driving force receiving portion 73 receives a driving force from the transmitting portion 74 at the female screw portion. Further, in the present embodiment, the driving force receiving portion 73 can rotate around the rotating shaft 73A (see FIG. 5) along the direction orthogonal to the axial direction of the tubular driving force receiving portion 73. In addition, the driving force receiving portion 73 can rotate with respect to the protruding portion 75. As a result, in the present embodiment, even if the inclination of the transmission unit 74 becomes large (described later), the state in which the transmission unit 74 and the driving force receiving unit 73 are arranged coaxially is maintained.
  • the transmission portion 74 shown in FIG. 3 is composed of a columnar shaft in which a spiral male screw is formed on the outer peripheral surface.
  • a second rotation shaft 62 (hereinafter, referred to as “transmission unit rotation center 62X”) extending in the lateral direction (horizontal direction) is provided at the right end portion of the transmission unit 74 in the drawing. Then, the transmission unit 74 rotates about the transmission unit rotation center 62X.
  • a rotating member 761 rotatably provided around a third rotating shaft 63 and a fourth rotating shaft 64 (not shown in FIG. 3) is provided.
  • the rotating member 761 has a U-shaped cross section on a plane orthogonal to the longitudinal direction of the rotating member 761.
  • the rotating member 761 has a first protruding portion 761A and a second protruding portion 761B at an end portion located on the transmission portion 74 side.
  • the first protrusion 761A is arranged between the first support frame 721 and one of the protrusions 75.
  • the second protrusion 761B is arranged between the second support frame 722 and the other protrusion 75.
  • the first protruding portion 761A is rotatably supported by the third rotating shaft 63 (see FIG. 3), and the second protruding portion 761B is supported by the fourth rotating shaft 64 (third rotating shaft 63 (see FIG. 3). It is supported in a rotatable state by a rotating shaft) arranged coaxially with (see FIG. 3).
  • the rotating member 761 is arranged below the support portion 40. Further, the rotating member 761 is arranged in a state of being parallel to the support portion 40. Further, as shown in FIG. 3, in the present embodiment, the fixing member 77 is fixed to the left end portion in the drawing of the support portion 40 and the rotating member 761. In the present embodiment, a seat surface 2 g (see FIG. 2) is provided above the fixing member 77.
  • the fixing member 77 is fixed to the support portion 40 and the rotating member 761 via the fifth rotating shaft 65 and the sixth rotating shaft 66. As a result, in the present embodiment, the posture of the fixing member 77 with respect to the support portion 40 and the rotating member 761 can be changed.
  • the transmission portion 74 is rotated in the circumferential direction by the motor M shown in FIG. 3, and the driving force receiving portion 73 is moved in the direction indicated by the arrow 3A in the drawing accordingly.
  • the driving force receiving portion 73 moves in the direction indicated by the arrow 3A
  • the support portion 40 rotates around the first rotation shaft 61 in the direction indicated by the arrow 3B in the drawing.
  • the fixing member 77 rises, and the seat surface 2g rises accordingly.
  • the fixing member 77 rises while maintaining the posture with respect to the floor surface, and in this case, the seat surface 2g rises while maintaining the horizontal state.
  • the motor M is reversed.
  • FIG. 5 is a view showing the elevating mechanism 2a after the seat surface 2g is raised.
  • a part of the transmission portion 74 (the left end portion in the figure) is pulled upward by the rising driving force receiving portion 73.
  • the inclination of the transmission portion 74 with respect to the floor surface becomes large.
  • the transmission unit 74 is arranged along the horizontal direction. (Along the floor).
  • the inclination of the transmission portion 74 with respect to the floor surface increases, and the transmission portion 74 inclines with respect to the floor surface.
  • a dedicated drive source for tilting the transmission unit 74 may be prepared, and a part of the transmission unit 74 may be raised by this drive source.
  • the cost is increased and the size of the device is increased.
  • the configuration in which a part of the transmission unit 74 is lifted by the driving force receiving unit 73 and the transmission unit 74 is tilted as in the present embodiment it is not necessary to prepare a dedicated drive source, and the cost can be reduced.
  • the device can be miniaturized.
  • FIG. 2 shows a comparison with the case where the transmission unit 74 is tilted.
  • the size of the portion indicated by reference numeral 2H can be reduced. If the size of the portion indicated by reference numeral 2H can be reduced, the leg support portion 402e can be brought closer to the lower side, and in this case, the patient can easily sit on the medical chair 2.
  • the rotation angle ⁇ is smaller.
  • the rotation angle of the driving force receiving portion 73 centered on the first rotation shaft 61 from the descending state in which the seat surface 2g is most lowered to the ascending state in which it is most raised is defined as the rotation angle ⁇ .
  • the rotation angle of the transmission unit 74 centered on the rotation center 62X of the transmission unit from the descending state to the ascending state is defined as the rotation angle ⁇ .
  • the rotation angle ⁇ of the transmission unit 74 is smaller than the rotation angle ⁇ of the driving force receiving unit 73.
  • the rotation angle ⁇ of the transmission unit 74 is smaller, the size of the portion indicated by reference numeral 2H in FIG. 2 can be reduced in the same manner as described above. Then, in this case, similarly to the above, the leg support portion 402e can be brought closer to the lower side, and the patient can easily sit on the medical chair 2.
  • the motor M is attached to the transmission unit 74, and in the present embodiment, the inclination of the transmission unit 74 changes and the posture of the transmission unit 74 changes. Even so, the posture of the motor M with respect to the transmission unit 74 is kept constant.
  • the transmission unit 74 moves relative to the motor M, and the transmission mechanism that transmits the driving force from the motor M to the transmission unit 74 Easy to get complicated.
  • a gear having a fixed structure can be installed between the motor M and the transmission unit 74. The configuration can be simplified.
  • the seat surface 2g can be raised more efficiently.
  • the elevating mechanism 2a may be configured so that the inclination of the transmission unit 74 does not increase. I can think of it.
  • the transmission unit 74 is always arranged along the horizontal direction, and the driving force receiving unit 73 can move with respect to the protrusion 75. More specifically, in this comparative example, a groove 99 is formed in the protruding portion 75, and the driving force receiving portion 73 can move along the groove 99.
  • the load acting on the protrusion 75 is different from that in the comparative example shown in FIG. 6, and the protrusion direction of the protrusion 75 is large.
  • the load acting in the direction orthogonal to is increased.
  • the force is easily transmitted from the transmission portion 74 to the protrusion 75, and the seat surface 2g is likely to rise.
  • the seat surface 2g can be raised with less force.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The present invention provides a chair for medical care, comprising: a seat surface for supporting a patient from beneath, the seat surface being provided so as to be capable of rising and falling; a support part for supporting the seat surface from beneath, the support part being provided so as to be able to rotate about a rotation axis which is positioned below a floor surface and which extends in the transverse direction; a drive force receiving part for receiving a drive force for rotating the support part around the rotation axis and raising the seat surface, the drive force receiving part being provided so as to be able to move around the rotation axis; and a transmission part for transmitting the drive force to the drive force receiving part, the inclination of the transmission part with respect to the floor surface increasing in accordance with rising of the seat surface.

Description

診療用椅子Medical chair
　本発明は、診療用椅子に関する。 The present invention relates to a medical chair.
　特許文献１には、患者を支持する診療シートと、診療シートに固定されるベースンポールとを備えた歯科診療装置が開示されている。 Patent Document 1 discloses a dental medical treatment device including a medical treatment sheet that supports a patient and a basin pole fixed to the medical treatment sheet.
特開平１０－３３５６９号公報Japanese Unexamined Patent Publication No. 10-335569
　歯科などに用いられる診療用椅子では、その座面が上下動する構造となっていることが多く、この場合、患者の体格等に応じて座面の位置を調整できる。ここで、駆動源からの力が座面に伝わりにくい構造であると、座面を上昇させる際の効率が低下する。
　本発明の目的は、座面をより効率的に上昇させることができる診療用椅子を提供することにある。 Medical chairs used in dentistry and the like often have a structure in which the seat surface moves up and down, and in this case, the position of the seat surface can be adjusted according to the physique of the patient and the like. Here, if the structure is such that the force from the drive source is not easily transmitted to the seat surface, the efficiency of raising the seat surface decreases.
An object of the present invention is to provide a medical chair capable of raising the seat surface more efficiently.
　かかる目的のもと、本発明が適用される診療用椅子は、昇降可能に設けられ、患者を下方から支持する座面と、前記座面を下方から支持する支持部であって、当該座面よりも下方に位置し横方向に延びる回転軸を中心に回転可能に設けられた支持部と、前記回転軸のまわりを移動可能に設けられ、前記支持部を当該回転軸まわりに回転させて前記座面を上昇させるための駆動力を受ける駆動力受け部と、前記駆動力受け部への駆動力の伝達を行う伝達部であって、前記座面の上昇に伴い床面に対する傾きが大きくなる伝達部と、を備える診療用椅子である。 For this purpose, the medical chair to which the present invention is applied is provided so as to be able to move up and down, and is a seat surface that supports the patient from below and a support portion that supports the seat surface from below. A support portion that is rotatably provided around a rotation axis that is located below and extends in the lateral direction, and a support portion that is movably provided around the rotation axis, and the support portion is rotated around the rotation axis to describe the above. A driving force receiving portion that receives a driving force for raising the seat surface and a transmitting portion that transmits the driving force to the driving force receiving portion, and the inclination with respect to the floor surface increases as the seat surface rises. It is a medical chair equipped with a transmission unit.
　ここで、前記伝達部は、前記座面の上昇に伴い上昇する前記駆動力受け部によってその一部が上方に引き上げられて床面に対する傾きが大きくなることを特徴とすることができる。
　また、前記伝達部に供給される駆動力を発生する駆動源をさらに備え、前記駆動源は、傾きが大きくなる前記伝達部に対して取り付けられ、当該伝達部に対する当該駆動源の姿勢が一定に保たれることを特徴とすることができる。
　また、前記伝達部は、床面に対する角度が大きくなる際、伝達部回転中心を中心に回転して床面に対する角度が大きくなり、前記座面が最も下降した下降状態から最も上昇した上昇状態になるまでの、前記回転軸を回転中心とした前記駆動力受け部の回転角度よりも、当該下降状態から当該上昇状態になるまでの、前記伝達部回転中心を回転中心とした前記伝達部の回転角度の方が小さいことを特徴とすることができる。
　また、前記座面が最も下降した下降状態では、前記伝達部が水平方向に沿っていることを特徴とすることができる。 Here, the transmission unit can be characterized in that a part of the transmission unit is pulled upward by the driving force receiving unit that rises as the seat surface rises, and the inclination with respect to the floor surface becomes large.
Further, a drive source for generating a driving force supplied to the transmission unit is further provided, and the drive source is attached to the transmission unit having a large inclination, so that the posture of the drive source with respect to the transmission unit is constant. It can be characterized by being retained.
Further, when the angle with respect to the floor surface increases, the transmission unit rotates around the center of rotation of the transmission unit and the angle with respect to the floor surface increases, so that the seat surface changes from the most lowered state to the most raised state. The rotation of the transmission unit with the rotation center of the transmission unit as the center of rotation from the descending state to the ascending state with respect to the rotation angle of the driving force receiving unit with the rotation axis as the rotation center. It can be characterized by a smaller angle.
Further, in the lowered state where the seat surface is most lowered, the transmission portion can be characterized in that it is along the horizontal direction.
　本発明によれば、座面をより効率的に上昇させることができる診療用椅子を提供することができる。 According to the present invention, it is possible to provide a medical chair capable of raising the seat surface more efficiently.
歯科用診療装置の全体構成を示した斜視図である。It is a perspective view which showed the whole structure of the dental medical treatment apparatus. 図１の矢印II方向から診療用椅子を眺めた場合の図である。It is a figure when the medical chair is viewed from the direction of arrow II of FIG. 図２にて符号IIIで示す部分の内部構造を示した図である。FIG. 2 is a diagram showing an internal structure of a portion indicated by reference numeral III in FIG. 図４は、図３の矢印IV方向から昇降機構の一部を見た場合の図である。FIG. 4 is a view when a part of the elevating mechanism is viewed from the direction of arrow IV in FIG. 座面が上昇した後の昇降機構を示した図である。It is a figure which showed the elevating mechanism after the seat surface was raised. 昇降機構の比較例を示した図である。It is a figure which showed the comparative example of the elevating mechanism.
　以下、添付図面を参照して、本発明の実施形態について説明する。
　図１は、本実施形態にかかる歯科用診療装置１の全体構成を示した斜視図である。
　同図に示すように、本実施形態の歯科用診療装置１では、床面の上に、患者を下方から支持する診療用椅子２が設けられている。
　なお、本実施形態では、歯科にて用いられる診療用椅子２を説明するが、本実施形態の診療用椅子２は、歯科に限らず、耳鼻科、内科等の他の科の診療に用いてもよい。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view showing the overall configuration of the dental medical treatment apparatus 1 according to the present embodiment.
As shown in the figure, in the dental medical treatment apparatus 1 of the present embodiment, a medical treatment chair 2 that supports the patient from below is provided on the floor surface.
In this embodiment, the medical chair 2 used in dentistry will be described, but the medical chair 2 of the present embodiment is used not only for dentistry but also for medical treatment in other departments such as otolaryngology and internal medicine. May be good.
　診療用椅子２は、昇降可能に設けられた座板２ｂを備える。座板２ｂの上面は、座面２ｇとなっており、本実施形態では、患者が診療用椅子２に座ると、患者の臀部がこの座面２ｇにより下方から支持される。
　さらに、診療用椅子２の下方には、座面２ｇを昇降させる昇降機構２ａが設けられている。 The medical chair 2 includes a seat plate 2b that can be raised and lowered. The upper surface of the seat plate 2b has a seat surface of 2 g, and in the present embodiment, when the patient sits on the medical chair 2, the buttocks of the patient are supported from below by the seat surface 2 g.
Further, below the medical chair 2, an elevating mechanism 2a for elevating and lowering the seat surface 2g is provided.
　さらに、診療用椅子２には、一端が座板２ｂに取り付けられこの一端を中心に回転する背板２ｃ、背板２ｃに取り付けられ患者の頭を支えるヘッドレスト２ｄが設けられている。
　また、座板２ｂを挟み、背板２ｃとは反対側には、患者の脚部を下方から支持する脚部支持部２ｅが設けられている。
　なお、図１では、背板２ｃが寝た状態となっているが、患者が診療用椅子２に座る際には、背板２ｃは起立した状態となっている。そして、患者が診療用椅子２に座ると、医師等からの指示に応じて背板２ｃが倒れ、背板２ｃは寝た状態となる。 Further, the medical chair 2 is provided with a back plate 2c having one end attached to the seat plate 2b and rotating around the one end, and a headrest 2d attached to the back plate 2c to support the patient's head.
Further, a leg support portion 2e that supports the patient's leg from below is provided on the side of the seat plate 2b and opposite to the back plate 2c.
In FIG. 1, the back plate 2c is in a sleeping state, but when the patient sits on the medical chair 2, the back plate 2c is in an upright state. Then, when the patient sits on the medical chair 2, the back plate 2c falls down according to the instruction from the doctor or the like, and the back plate 2c falls asleep.
　また、歯科用診療装置１には、診療用椅子２の脇に、医師用のトレーテーブル３が設けられ、さらに、医師用のインスツルメントホルダ１０が設けられている。
　さらに、診療用椅子２を挟みトレーテーブル３の反対側には、アシスタント用のインスツルメントホルダ４が設けられている。
　また、患者の口腔への光照射を行う歯科用照明装置１００、歯科用照明装置１００を支持するアーム６ｂ、アーム６ｂを支持する支柱６ｃが設けられている。 Further, in the dental medical treatment apparatus 1, a tray table 3 for a doctor is provided beside a medical chair 2, and an instrument holder 10 for a doctor is further provided.
Further, an instrument holder 4 for an assistant is provided on the opposite side of the tray table 3 across the medical chair 2.
Further, a dental lighting device 100 that irradiates the patient's oral cavity with light, an arm 6b that supports the dental lighting device 100, and a support column 6c that supports the arm 6b are provided.
　なお、医師用のインスツルメントホルダ１０及びアシスタント用のインスツルメントホルダ４には、歯科用の診療用器具（インスツルメント）１１が抜差し自在に保持される（図１では、アシスタント用の診療用器具１１のみを図示）。
　医師用の診療用器具１１としては、例えば、エアタービンハンドピース、マイクロモータハンドピース、スケーラ、スリーウェーシリンジ、根管長測定器、根管拡大器、口腔内カメラを挙げることができる。 The dental instrument holder 10 and the assistant instrument holder 4 are held so that the dental instrument holder 11 can be freely inserted and removed (in FIG. 1, the assistant's medical treatment). Only the tool 11 is shown).
Examples of the medical instrument 11 for doctors include an air turbine handpiece, a micromotor handpiece, a scaler, a three-way syringe, a root canal length measuring device, a root canal enlarger, and an intraoral camera.
　また、アシスタント用の診療用器具１１としては、例えば、患者の口腔内の唾液、血液、切削屑など（以下、「廃液」と称することがある）を吸引する吸引用器具２０を挙げることができる。
　なお、図１では、インスツルメントホルダ４によって、吸引用器具２０の一例としてのサクションシリンジ（バキュームシリンジ）２１、サライバエジェクタ２２が支持されている。
　吸引用器具２０の各々は、真空ポンプやコンプレッサーなどの不図示の吸気源（後述）に接続されており、この吸気源にて吸気が行われることで、上記廃液の吸引を行う。 Further, as the medical instrument 11 for the assistant, for example, a suction instrument 20 for sucking saliva, blood, cutting debris, etc. (hereinafter, may be referred to as “waste liquid”) in the oral cavity of the patient can be mentioned. ..
In FIG. 1, the instrument holder 4 supports a suction syringe (vacuum syringe) 21 and a saliva ejector 22 as an example of the suction device 20.
Each of the suction devices 20 is connected to an intake source (described later) (not shown) such as a vacuum pump or a compressor, and suction is performed by the intake source to suck the waste liquid.
　また、本実施形態では、診療用椅子２の脇に、患者がうがいに用いるコップに水を供給する供給装置（スピットン装置）５が設けられている。
　供給装置５には、ベースユニット５１、患者の口腔内から排出された廃液を受ける廃液受け部（ベースン）５２、コップに対し水を供給するコップ用給水部５３、清掃用の水を廃液受け部５２に供給する清掃用給水部５４が設けられている。 Further, in the present embodiment, a supply device (spitton device) 5 for supplying water to a cup used by the patient for gargling is provided beside the medical chair 2.
The supply device 5 includes a base unit 51, a waste liquid receiving unit (baseon) 52 that receives the waste liquid discharged from the patient's oral cavity, a water supply unit 53 for the cup that supplies water to the cup, and a waste liquid receiving unit for cleaning water. A cleaning water supply unit 54 that supplies water to 52 is provided.
　さらに、供給装置５には、ベースユニット５１の内部に、廃液を収容する収容容器（サクションタンク）６０が設けられている。
　収容容器６０には、上記吸引用器具２０（サクションシリンジ２１、サライバエジェクタ２２等）によって吸引された廃液（患者の口腔内から吸引された廃液）が収容される。 Further, the supply device 5 is provided with a storage container (suction tank) 60 for storing the waste liquid inside the base unit 51.
The storage container 60 contains the waste liquid (waste liquid sucked from the patient's oral cavity) sucked by the suction device 20 (suction syringe 21, saliva ejector 22, etc.).
　図２は、図１の矢印II方向から診療用椅子２を眺めた場合の図である。
　なお、図２では、図１にて示したヘッドレスト２ｄの図示を省略している。また、図２では、背板２ｃが起立した状態を示している。
　本実施形態では、座面２ｇの下方に、この座面２ｇを昇降させる昇降機構２ａが設けられている。この昇降機構２ａは、モータ（後述）を備え、このモータを駆動して座面２ｇを昇降させる。 FIG. 2 is a view when the medical chair 2 is viewed from the direction of arrow II in FIG.
In addition, in FIG. 2, the illustration of the headrest 2d shown in FIG. 1 is omitted. Further, FIG. 2 shows a state in which the back plate 2c stands upright.
In the present embodiment, an elevating mechanism 2a for raising and lowering the seat surface 2g is provided below the seat surface 2g. The elevating mechanism 2a includes a motor (described later), and drives the motor to elevate and lower the seat surface 2g.
　図３は、図２にて符号IIIで示す部分の内部構造を示した図である。また、図４は、図３の矢印IV方向から（図３の紙面の奥側から且つ上方から）昇降機構２ａの一部を見た場合の図である。
　図３に示すように、本実施形態の昇降機構２ａには、座面２ｇを下方から支持する支持部（支持部材）４０が設けられている。
　なお、支持部４０による座面２ｇ（図２参照）の支持態様としては、支持部４０が座面２ｇを直接支持する態様に限らず、支持部４０と座面２ｇとの間に他の部材を介在させ、支持部４０がこの他の部材を介して座面２ｇを支持する態様も含む。 FIG. 3 is a diagram showing the internal structure of the portion indicated by reference numeral III in FIG. Further, FIG. 4 is a view when a part of the elevating mechanism 2a is viewed from the direction of arrow IV of FIG. 3 (from the back side and the upper side of the paper surface of FIG. 3).
As shown in FIG. 3, the elevating mechanism 2a of the present embodiment is provided with a support portion (support member) 40 that supports the seat surface 2 g from below.
The mode of supporting the seat surface 2g (see FIG. 2) by the support portion 40 is not limited to the mode in which the support portion 40 directly supports the seat surface 2g, and another member is provided between the support portion 40 and the seat surface 2g. Also includes an embodiment in which the support portion 40 supports the seat surface 2 g via other members.
　図３にて示す支持部４０は、支持部４０の長手方向と直交する面における断面の形状が、Ｕ字状となっている。また、支持部４０は、座面２ｇが設けられている上方側から斜め下方に向かって延びるように設けられている。
　さらに、本実施形態では、座面２ｇよりも下方に位置し、横方向（水平方向）に延びる第１回転軸６１が設けられている。支持部４０は、この第１回転軸６１を中心に回転する。 The support portion 40 shown in FIG. 3 has a U-shape in cross section on a plane orthogonal to the longitudinal direction of the support portion 40. Further, the support portion 40 is provided so as to extend obliquely downward from the upper side on which the seat surface 2g is provided.
Further, in the present embodiment, the first rotating shaft 61, which is located below the seat surface 2g and extends in the lateral direction (horizontal direction), is provided. The support portion 40 rotates about the first rotation shaft 61.
　さらに、本実施形態では、床面に沿って配置される板状の台座７１、および、台座７１から上方に向かって延び且つ互いに対向配置された第１支持フレーム７２１、第２支持フレーム７２２が設けられている。
　本実施形態では、第１回転軸６１の端部が、この第１支持フレーム７２１、第２支持フレーム７２２により支持されている。 Further, in the present embodiment, a plate-shaped pedestal 71 arranged along the floor surface, and a first support frame 721 and a second support frame 722 extending upward from the pedestal 71 and arranged facing each other are provided. Has been done.
In the present embodiment, the end portion of the first rotating shaft 61 is supported by the first support frame 721 and the second support frame 722.
　さらに、本実施形態では、駆動源の一例としてのモータＭが設けられている。本実施形態では、このモータＭによって座面２ｇが昇降する。
　さらに、本実施形態では、座面２ｇを昇降させるための駆動力（モータＭからの駆動力）を受ける駆動力受け部７３が設けられている。
　さらに、モータＭからの駆動力を駆動力受け部７３に伝達する伝達部７４が設けられている。 Further, in the present embodiment, a motor M is provided as an example of a drive source. In the present embodiment, the seat surface 2g is raised and lowered by the motor M.
Further, in the present embodiment, a driving force receiving portion 73 for receiving a driving force (driving force from the motor M) for raising and lowering the seat surface 2g is provided.
Further, a transmission unit 74 for transmitting the driving force from the motor M to the driving force receiving unit 73 is provided.
　駆動力受け部７３は、第１回転軸６１のまわりを移動可能に設けられている。駆動力受け部７３は、支持部４０を第１回転軸６１まわりに回転させて座面２ｇを上昇させる。
　本実施形態では、支持部４０に取り付けられ、下方に向かって突出した突出部７５が設けられている。本実施形態では、この突出部７５の突出方向における先端部に、駆動力受け部７３が設けられている。 The driving force receiving portion 73 is provided so as to be movable around the first rotating shaft 61. The driving force receiving portion 73 rotates the support portion 40 around the first rotation shaft 61 to raise the seat surface 2g.
In the present embodiment, a protruding portion 75 that is attached to the support portion 40 and protrudes downward is provided. In the present embodiment, a driving force receiving portion 73 is provided at the tip portion of the protruding portion 75 in the protruding direction.
　駆動力受け部７３は、内周面に雌ねじが形成された円筒状部材により構成されており、駆動力受け部７３は、この雌ねじの部分にて、伝達部７４からの駆動力を受ける。
　また、本実施形態では、筒状の駆動力受け部７３の軸方向と直交する方向に沿った回転軸７３Ａ（図５参照）を中心に、駆動力受け部７３が回転可能となっている。付言すると、駆動力受け部７３は、突出部７５に対する回転が可能になっている。
　これにより、本実施形態では、伝達部７４の傾きが大きくなったとしても（後述）、伝達部７４と駆動力受け部７３とが同軸上に配置された状態が保たれる。 The driving force receiving portion 73 is formed of a cylindrical member having a female screw formed on the inner peripheral surface, and the driving force receiving portion 73 receives a driving force from the transmitting portion 74 at the female screw portion.
Further, in the present embodiment, the driving force receiving portion 73 can rotate around the rotating shaft 73A (see FIG. 5) along the direction orthogonal to the axial direction of the tubular driving force receiving portion 73. In addition, the driving force receiving portion 73 can rotate with respect to the protruding portion 75.
As a result, in the present embodiment, even if the inclination of the transmission unit 74 becomes large (described later), the state in which the transmission unit 74 and the driving force receiving unit 73 are arranged coaxially is maintained.
　図３にて示す伝達部７４は、螺旋状の雄ねじが外周面に形成された円柱状のシャフトにより構成されている。
　図３において、伝達部７４の図中右端部には、横方向（水平方向）に延びる第２回転軸６２（以下、「伝達部回転中心６２Ｘ」と称する）が設けられており、本実施形態では、伝達部７４は、この伝達部回転中心６２Ｘを中心に回転する。 The transmission portion 74 shown in FIG. 3 is composed of a columnar shaft in which a spiral male screw is formed on the outer peripheral surface.
In FIG. 3, a second rotation shaft 62 (hereinafter, referred to as “transmission unit rotation center 62X”) extending in the lateral direction (horizontal direction) is provided at the right end portion of the transmission unit 74 in the drawing. Then, the transmission unit 74 rotates about the transmission unit rotation center 62X.
　さらに、本実施形態では、第３回転軸６３、第４回転軸６４（図３では不図示）を中心に回転可能に設けられた回転部材７６１が設けられている。回転部材７６１は、回転部材７６１の長手方向と直交する面における断面の形状が、Ｕ字状となっている。
　図４に示すように、回転部材７６１は、伝達部７４側に位置する端部に、第１突出部７６１Ａ、第２突出部７６１Ｂを有する。
　第１突出部７６１Ａは、第１支持フレーム７２１と一方の突出部７５との間に配置されている。第２突出部７６１Ｂは、第２支持フレーム７２２と他方の突出部７５との間に配置されている。
　本実施形態では、第１突出部７６１Ａは、第３回転軸６３（図３参照）により回転可能な状態で支持され、第２突出部７６１Ｂは、第４回転軸６４（第３回転軸６３（図３参照）と同軸上に配置された回転軸）により回転可能な状態で支持されている。 Further, in the present embodiment, a rotating member 761 rotatably provided around a third rotating shaft 63 and a fourth rotating shaft 64 (not shown in FIG. 3) is provided. The rotating member 761 has a U-shaped cross section on a plane orthogonal to the longitudinal direction of the rotating member 761.
As shown in FIG. 4, the rotating member 761 has a first protruding portion 761A and a second protruding portion 761B at an end portion located on the transmission portion 74 side.
The first protrusion 761A is arranged between the first support frame 721 and one of the protrusions 75. The second protrusion 761B is arranged between the second support frame 722 and the other protrusion 75.
In the present embodiment, the first protruding portion 761A is rotatably supported by the third rotating shaft 63 (see FIG. 3), and the second protruding portion 761B is supported by the fourth rotating shaft 64 (third rotating shaft 63 (see FIG. 3). It is supported in a rotatable state by a rotating shaft) arranged coaxially with (see FIG. 3).
　図３に示すように、回転部材７６１は、支持部４０の下方に配置されている。また、回転部材７６１は、支持部４０と平行となる状態で配置されている。
　さらに、図３に示すように、本実施形態では、支持部４０、回転部材７６１の図中左端部に、固定部材７７が固定されている。本実施形態では、この固定部材７７の上方に、座面２ｇ（図２参照）が設けられている。 As shown in FIG. 3, the rotating member 761 is arranged below the support portion 40. Further, the rotating member 761 is arranged in a state of being parallel to the support portion 40.
Further, as shown in FIG. 3, in the present embodiment, the fixing member 77 is fixed to the left end portion in the drawing of the support portion 40 and the rotating member 761. In the present embodiment, a seat surface 2 g (see FIG. 2) is provided above the fixing member 77.
　固定部材７７は、第５回転軸６５、第６回転軸６６を介して、支持部４０、回転部材７６１に固定されている。
　これにより、本実施形態では、支持部４０、回転部材７６１に対する固定部材７７の姿勢の変化が可能になっている。 The fixing member 77 is fixed to the support portion 40 and the rotating member 761 via the fifth rotating shaft 65 and the sixth rotating shaft 66.
As a result, in the present embodiment, the posture of the fixing member 77 with respect to the support portion 40 and the rotating member 761 can be changed.
　本実施形態では、図３にて示すモータＭによって、伝達部７４が周方向に回転し、これに伴い、駆動力受け部７３が図中矢印３Ａに示す方向へ移動する。
　駆動力受け部７３が矢印３Ａに示す方向へ移動すると、第１回転軸６１を中心に、支持部４０が、図中矢印３Ｂで示す方向へ回転する。支持部４０が矢印３Ｂで示す方向へ回転すると、固定部材７７が上昇し、これに伴い座面２ｇが上昇する。 In the present embodiment, the transmission portion 74 is rotated in the circumferential direction by the motor M shown in FIG. 3, and the driving force receiving portion 73 is moved in the direction indicated by the arrow 3A in the drawing accordingly.
When the driving force receiving portion 73 moves in the direction indicated by the arrow 3A, the support portion 40 rotates around the first rotation shaft 61 in the direction indicated by the arrow 3B in the drawing. When the support portion 40 rotates in the direction indicated by the arrow 3B, the fixing member 77 rises, and the seat surface 2g rises accordingly.
　なお、本実施形態では、支持部４０が回転しても、支持部４０と回転部材７６１とが平行である状態が保たれる。
　これにより、本実施形態では、固定部材７７は、床面に対する姿勢を保った状態で上昇するようになり、この場合、座面２ｇは、水平状態を保ったまま上昇する。
　なお、座面２ｇを下降させる場合には、モータＭを逆転させる。 In the present embodiment, even if the support portion 40 rotates, the support portion 40 and the rotating member 761 are kept in a parallel state.
As a result, in the present embodiment, the fixing member 77 rises while maintaining the posture with respect to the floor surface, and in this case, the seat surface 2g rises while maintaining the horizontal state.
When lowering the seat surface 2g, the motor M is reversed.
　図５は、座面２ｇが上昇した後の昇降機構２ａを示した図である。
　座面２ｇが上昇する場合、本実施形態では、伝達部７４の一部（図中左端部）が、上昇する駆動力受け部７３によって上方に引き上げられる。
　これにより、本実施形態では、図５に示すように、床面に対する伝達部７４の傾きが大きくなる。 FIG. 5 is a view showing the elevating mechanism 2a after the seat surface 2g is raised.
When the seat surface 2g rises, in the present embodiment, a part of the transmission portion 74 (the left end portion in the figure) is pulled upward by the rising driving force receiving portion 73.
As a result, in the present embodiment, as shown in FIG. 5, the inclination of the transmission portion 74 with respect to the floor surface becomes large.
　付言すると、本実施形態では、座面２ｇが上昇する前の状態では（座面２ｇが最も下降した下降状態では）、図３、４に示すように、伝達部７４は、水平方向に沿っている（床面に沿っている）。
　座面２ｇが上昇すると、床面に対する伝達部７４の傾きが大きくなり、伝達部７４は、床面に対して傾斜する。 In addition, in the present embodiment, in the state before the seat surface 2g is raised (in the descending state where the seat surface 2g is most lowered), as shown in FIGS. 3 and 4, the transmission unit 74 is arranged along the horizontal direction. (Along the floor).
When the seat surface 2g rises, the inclination of the transmission portion 74 with respect to the floor surface increases, and the transmission portion 74 inclines with respect to the floor surface.
　ここで、伝達部７４を上記のように傾けるには、例えば、伝達部７４を傾けるための専用の駆動源を用意し、この駆動源で伝達部７４の一部を上昇させる態様も考えられる。ところで、この態様では、コストの増大を招いたり、装置の大型化を招いたりする。
　これに対し、本実施形態のように、駆動力受け部７３で伝達部７４の一部を持ち上げて、伝達部７４を傾ける構成では、専用の駆動源を用意せずに済み、コストの低減や、装置の小型化を図れる。 Here, in order to tilt the transmission unit 74 as described above, for example, a dedicated drive source for tilting the transmission unit 74 may be prepared, and a part of the transmission unit 74 may be raised by this drive source. By the way, in this aspect, the cost is increased and the size of the device is increased.
On the other hand, in the configuration in which a part of the transmission unit 74 is lifted by the driving force receiving unit 73 and the transmission unit 74 is tilted as in the present embodiment, it is not necessary to prepare a dedicated drive source, and the cost can be reduced. , The device can be miniaturized.
　さらに、本実施形態のように、座面２ｇが最も下降した下降状態にて、伝達部７４が水平方向に沿った状態で配置されると、伝達部７４が傾斜する場合に比べ、図２にて符号２Ｈで示す部分における寸法を小さくできる。
　符号２Ｈで示す部分における寸法を小さくできる場合、脚部支持部４０２ｅをより下方に近づけられるようになり、この場合、患者が診療用椅子２に座りやすくなる。 Further, as in the present embodiment, when the transmission unit 74 is arranged in the horizontal direction in the descending state where the seat surface 2g is most lowered, FIG. 2 shows a comparison with the case where the transmission unit 74 is tilted. The size of the portion indicated by reference numeral 2H can be reduced.
If the size of the portion indicated by reference numeral 2H can be reduced, the leg support portion 402e can be brought closer to the lower side, and in this case, the patient can easily sit on the medical chair 2.
　さらに、本実施形態では、図５に示すように、第１回転軸６１を回転中心とした駆動力受け部７３の回転角度αよりも、伝達部回転中心６２Ｘを回転中心とした伝達部７４の回転角度βの方が小さくなっている。 Further, in the present embodiment, as shown in FIG. 5, the transmission unit 74 having the transmission unit rotation center 62X as the rotation center rather than the rotation angle α of the driving force receiving unit 73 having the first rotation shaft 61 as the rotation center. The rotation angle β is smaller.
　付言すると、座面２ｇが最も下降した下降状態から最も上昇した上昇状態になるまでの、第１回転軸６１を回転中心とした駆動力受け部７３の回転角度を、回転角度αとする。
　また、下降状態から上昇状態になるまでの、伝達部回転中心６２Ｘを回転中心とした伝達部７４の回転角度を、回転角度βとする。 In addition, the rotation angle of the driving force receiving portion 73 centered on the first rotation shaft 61 from the descending state in which the seat surface 2g is most lowered to the ascending state in which it is most raised is defined as the rotation angle α.
Further, the rotation angle of the transmission unit 74 centered on the rotation center 62X of the transmission unit from the descending state to the ascending state is defined as the rotation angle β.
　この場合、本実施形態では、駆動力受け部７３の回転角度αよりも、伝達部７４の回転角度βの方が小さくなっている。
　このように、伝達部７４の回転角度βの方が小さい場合、上記と同様、図２にて符号２Ｈで示す部分における寸法を小さくできる。そして、この場合、上記と同様、脚部支持部４０２ｅをより下方に近づけられるようになり、患者が診療用椅子２に座りやすくなる。 In this case, in the present embodiment, the rotation angle β of the transmission unit 74 is smaller than the rotation angle α of the driving force receiving unit 73.
As described above, when the rotation angle β of the transmission unit 74 is smaller, the size of the portion indicated by reference numeral 2H in FIG. 2 can be reduced in the same manner as described above. Then, in this case, similarly to the above, the leg support portion 402e can be brought closer to the lower side, and the patient can easily sit on the medical chair 2.
　さらに、本実施形態では、図５に示すように、モータＭは、伝達部７４に対して取り付けられており、本実施形態では、伝達部７４の傾きが変化し、伝達部７４の姿勢が変化しても、伝達部７４に対するモータＭの姿勢は一定に保たれる。
　ここで、例えば、モータＭが、床面に対して固定されていると、モータＭに対して伝達部７４が相対移動する形となり、モータＭから伝達部７４へ駆動力を伝達する伝達機構が複雑化しやすい。
　これに対して、本実施形態のように、モータＭが伝達部７４に対して取り付けられていると、モータＭと伝達部７４との間に、例えば、固定された構造のギアを設置でき、構成の簡素化を図れる。 Further, in the present embodiment, as shown in FIG. 5, the motor M is attached to the transmission unit 74, and in the present embodiment, the inclination of the transmission unit 74 changes and the posture of the transmission unit 74 changes. Even so, the posture of the motor M with respect to the transmission unit 74 is kept constant.
Here, for example, when the motor M is fixed to the floor surface, the transmission unit 74 moves relative to the motor M, and the transmission mechanism that transmits the driving force from the motor M to the transmission unit 74 Easy to get complicated.
On the other hand, when the motor M is attached to the transmission unit 74 as in the present embodiment, for example, a gear having a fixed structure can be installed between the motor M and the transmission unit 74. The configuration can be simplified.
　本実施形態の構成（伝達部７４の傾きが大きくなる構成では）では、座面２ｇをより効率的に上昇させられる。
　ここで、図６（昇降機構２ａの比較例を示した図）の（Ａ）、（Ｂ）に示す比較例のように、昇降機構２ａの構成として、伝達部７４の傾きが大きくならない構成も考えらえる。
　この比較例では、伝達部７４が、常に、水平方向に沿って配置され、また、突出部７５に対する駆動力受け部７３の移動が可能になっている。より具体的には、この比較例では、突出部７５に溝９９が形成され、駆動力受け部７３は、この溝９９に沿った移動が可能になっている。 In the configuration of the present embodiment (in a configuration in which the inclination of the transmission unit 74 is large), the seat surface 2g can be raised more efficiently.
Here, as in the comparative examples shown in (A) and (B) of FIG. 6 (a diagram showing a comparative example of the elevating mechanism 2a), the elevating mechanism 2a may be configured so that the inclination of the transmission unit 74 does not increase. I can think of it.
In this comparative example, the transmission unit 74 is always arranged along the horizontal direction, and the driving force receiving unit 73 can move with respect to the protrusion 75. More specifically, in this comparative example, a groove 99 is formed in the protruding portion 75, and the driving force receiving portion 73 can move along the groove 99.
　この比較例では、図６（Ｂ）に示すように、座面２ｇ（図６（Ｂ）では不図示）が上昇すると、伝達部７４と突出部７５とのなす角度θが小さくなり、突出部７５に対し、図中６Ａで示す方向（突出部７５の突出方向と直交する方向）へ作用する荷重が作用しにくくなる。付言すると、この比較例では、伝達部７４から突出部７５へ、力が伝わりにくくなる。 In this comparative example, as shown in FIG. 6 (B), when the seat surface 2 g (not shown in FIG. 6 (B)) rises, the angle θ formed by the transmission portion 74 and the protrusion 75 decreases, and the protrusion The load acting in the direction shown by 6A in the drawing (the direction orthogonal to the protruding direction of the protruding portion 75) is less likely to act on the 75. In addition, in this comparative example, it becomes difficult for the force to be transmitted from the transmission portion 74 to the protrusion portion 75.
　これに対し、本実施形態のように、伝達部７４の傾きが大きくなる構成では、図６にて示した比較例に比べ、突出部７５に作用する荷重であって、突出部７５の突出方向と直交する方向へ作用する荷重が大きくなる。
　この場合、伝達部７４から突出部７５へ力が伝わりやすくなり、座面２ｇが上昇しやすくなる。付言すると、この場合、より少ない力で、座面２ｇを上昇させられるようになる。 On the other hand, in the configuration in which the inclination of the transmission portion 74 is large as in the present embodiment, the load acting on the protrusion 75 is different from that in the comparative example shown in FIG. 6, and the protrusion direction of the protrusion 75 is large. The load acting in the direction orthogonal to is increased.
In this case, the force is easily transmitted from the transmission portion 74 to the protrusion 75, and the seat surface 2g is likely to rise. In addition, in this case, the seat surface 2g can be raised with less force.
２…診療用椅子、２ｇ…座面、４０…支持部、６１…第１回転軸、７３…駆動力受け部、７４…伝達部 2 ... Medical chair, 2g ... Seat surface, 40 ... Support part, 61 ... First rotation shaft, 73 ... Driving force receiving part, 74 ... Transmission part

Claims (5)

  1. 　昇降可能に設けられ、患者を下方から支持する座面と、
    　前記座面を下方から支持する支持部であって、当該座面よりも下方に位置し横方向に延びる回転軸を中心に回転可能に設けられた支持部と、
    　前記回転軸のまわりを移動可能に設けられ、前記支持部を当該回転軸まわりに回転させて前記座面を上昇させるための駆動力を受ける駆動力受け部と、
    　前記駆動力受け部への駆動力の伝達を行う伝達部であって、前記座面の上昇に伴い床面に対する傾きが大きくなる伝達部と、
    を備える診療用椅子。     A seat that can be raised and lowered to support the patient from below,
    A support portion that supports the seat surface from below, and a support portion that is located below the seat surface and is rotatably provided around a rotation axis extending in the lateral direction.
    A driving force receiving portion that is movably provided around the rotating shaft and receives a driving force for rotating the supporting portion around the rotating shaft to raise the seat surface.
    A transmission unit that transmits the driving force to the driving force receiving unit, and a transmission unit that inclines with respect to the floor surface as the seat surface rises.
    Medical chair equipped with.
  2. 　前記伝達部は、前記座面の上昇に伴い上昇する前記駆動力受け部によってその一部が上方に引き上げられて床面に対する傾きが大きくなる請求項１に記載の診療用椅子。 The medical chair according to claim 1, wherein a part of the transmission unit is pulled upward by the driving force receiving unit that rises as the seat surface rises, and the inclination with respect to the floor surface becomes large.
  3. 　前記伝達部に供給される駆動力を発生する駆動源をさらに備え、
    　前記駆動源は、傾きが大きくなる前記伝達部に対して取り付けられ、当該伝達部に対する当該駆動源の姿勢が一定に保たれる請求項１に記載の診療用椅子。     Further provided with a drive source for generating a driving force supplied to the transmission unit,
    The medical chair according to claim 1, wherein the drive source is attached to the transmission unit having a large inclination, and the posture of the drive source with respect to the transmission unit is kept constant.
  4. 　前記伝達部は、床面に対する角度が大きくなる際、伝達部回転中心を中心に回転して床面に対する角度が大きくなり、
    　前記座面が最も下降した下降状態から最も上昇した上昇状態になるまでの、前記回転軸を回転中心とした前記駆動力受け部の回転角度よりも、当該下降状態から当該上昇状態になるまでの、前記伝達部回転中心を回転中心とした前記伝達部の回転角度の方が小さい請求項１に記載の診療用椅子。     When the angle with respect to the floor surface increases, the transmission unit rotates around the center of rotation of the transmission unit, and the angle with respect to the floor surface increases.
    From the descending state to the ascending state from the descending state to the ascending state, which is the rotation angle of the driving force receiving portion with the rotation axis as the center of rotation. The medical chair according to claim 1, wherein the rotation angle of the transmission unit is smaller than the rotation center of the transmission unit.
  5. 　前記座面が最も下降した下降状態では、前記伝達部が水平方向に沿っている請求項１に記載の診療用椅子。 The medical chair according to claim 1, wherein the transmission unit is in the horizontal direction in the lowered state where the seat surface is most lowered.
PCT/JP2019/020090 2019-05-14 2019-05-21 Chair for medical care WO2020230336A1 (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5341085A (en) * 1976-09-27 1978-04-14 Yoshida Seisakusho Kk Dental treatment chair
JPS56145849A (en) * 1980-04-15 1981-11-12 Takada Kikai Kk Patient chair lifted in circularity
JPS57180956A (en) * 1981-04-30 1982-11-08 Yoshida Seisakusho Kk Dental treating chair
JPS58160036U (en) * 1972-10-21 1983-10-25 シ−メンス、アクチエンゲゼルシヤフト Dental patient chair with translation table arms
JPS61187859A (en) * 1985-02-18 1986-08-21 株式会社　吉田製作所 Lift mechanism of treatment table
US5320415A (en) * 1990-03-29 1994-06-14 A-Dec, Inc. Armrest assembly for a dental chair
JP2002345905A (en) * 2001-05-25 2002-12-03 Gc Corp Dental unit
JP2003070587A (en) * 2001-08-31 2003-03-11 T S Tec Kk Frame for multi-purpose chair
JP2003126186A (en) * 2001-10-25 2003-05-07 Gc Corp Dental unit
JP2006122688A (en) * 2004-10-29 2006-05-18 Kaltenbach & Voigt Gmbh Treatment chair, particularly dental treatment chair

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2122294A1 (en) * 1994-04-27 1995-10-28 Peter C. Boetzkes Dental patient's chair
JP2000166996A (en) * 1998-12-07 2000-06-20 Ichiro Yokota Transportable chair for circulating dental treatment
CN2440494Y (en) * 2000-09-19 2001-08-01 莫志彬 Improvement of therapeutic apparatus
US20100205742A1 (en) * 2009-02-13 2010-08-19 A-Dec, Inc. Patient support apparatus with neck support member
CN202314169U (en) * 2011-10-31 2012-07-11 珠海西格医疗设备有限公司 Back tilting component and seat
CN106698278A (en) * 2015-11-17 2017-05-24 深圳市山尼安防科技有限公司 Swing arm type balancing and lifting device
CN106859908A (en) * 2016-12-31 2017-06-20 重庆楠婧琳科技开发有限公司 Dental multipurpose therapy unit seat
CN208591268U (en) * 2017-10-19 2019-03-12 张凤英 A kind of portable is from going up and down operating chair

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160036U (en) * 1972-10-21 1983-10-25 シ−メンス、アクチエンゲゼルシヤフト Dental patient chair with translation table arms
JPS5341085A (en) * 1976-09-27 1978-04-14 Yoshida Seisakusho Kk Dental treatment chair
JPS56145849A (en) * 1980-04-15 1981-11-12 Takada Kikai Kk Patient chair lifted in circularity
JPS57180956A (en) * 1981-04-30 1982-11-08 Yoshida Seisakusho Kk Dental treating chair
JPS61187859A (en) * 1985-02-18 1986-08-21 株式会社　吉田製作所 Lift mechanism of treatment table
US5320415A (en) * 1990-03-29 1994-06-14 A-Dec, Inc. Armrest assembly for a dental chair
JP2002345905A (en) * 2001-05-25 2002-12-03 Gc Corp Dental unit
JP2003070587A (en) * 2001-08-31 2003-03-11 T S Tec Kk Frame for multi-purpose chair
JP2003126186A (en) * 2001-10-25 2003-05-07 Gc Corp Dental unit
JP2006122688A (en) * 2004-10-29 2006-05-18 Kaltenbach & Voigt Gmbh Treatment chair, particularly dental treatment chair

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