WO2020039585A1

WO2020039585A1 - Dental chair foot switch

Info

Publication number: WO2020039585A1
Application number: PCT/JP2018/031398
Authority: WO
Inventors: 賢堀脇; 陽平山口
Original assignee: タカラベルモント株式会社
Priority date: 2018-08-24
Filing date: 2018-08-24
Publication date: 2020-02-27
Also published as: EP3842022B1; EP3842022A4; EP3842022A1; JPWO2020039585A1; JP6784832B2

Abstract

Provided are: a dental chair foot switch that is easy to operate in a dental chair which is elevated and lowered via a link mechanism; and the dental chair. This dental chair (10) has: a base part (11) which is installed on an installation surface; a leg part (14) which is coupled to the base part (11); a chair part (15) which is lowered as the leg part (14) collapses and is elevated as the leg part (14) rises; and a dental chair foot switch (27). The dental chair foot switch (27) is disposed at the rear end of the base part 11 in the dental chair (10), and is configured to constitute a part of a plate-shaped base part (12) lying behind the leg part (14) in a state of being collapsed as a result of the chair part (15) having come down to the lowermost position.

Description

Dental chair foot switch

The present disclosure relates to a dental chair in a dental clinic and a foot switch for a dental chair provided in the dental chair.

Conventionally, a dental chair provided in a dental clinic such as a dental clinic has an operation unit for performing, for example, an operation of lifting and lowering, an operation of tilting a backrest, and an operation of raising. The operation unit is provided, for example, on a doctor table or a panel arranged around a dental chair, and also includes a dentist and a dental hygienist (hereinafter, a dentist and a dental hygienist are referred to as “practitioners”). ) Is a foot switch that can be operated by foot.

For example, a dental chair described in Patent Literature 1 below has a seat, a backrest, a legrest, and a footrest connected to each other, and a lifting device is connected to a lower portion of the seat. Is connected to a base installed on the installation surface. The foot switch is provided on the base on the back side of the backrest and behind the elevating device, as a position where the practitioner can easily operate during the operation.

The dental chair described in Patent Literature 2 described below is described in Patent Literature 1 because a seat portion and a leg rest are integrally formed and a subject sits in a posture in which a leg is stretched in advance. It cannot be moved up and down by the same elevating device as a dental chair (hereinafter referred to as "vertical dental chair"). That is, the dental chair described in Patent Literature 2 (hereinafter, referred to as a “link-type dental chair”) is used to balance the weight of the leg rest extending from the seat portion and the fall backrest in advance. Furthermore, it is necessary to raise and lower using a link mechanism or the like in order to secure a space for the practitioner to insert his / her legs between the fallen backrest and the installation surface. The link mechanism is provided on a leg connected to a lower part of the dental chair, and the leg is connected to a base installed on the installation surface. The foot switch is a separately prepared wired type, and is placed at an arbitrary position on the installation surface.

とおり As mentioned above, all dental chairs move up and down. However, due to the structure of the chairs and the mechanism for moving up and down, the arrangement and types of foot switches are different for each dental chair.

JP-A-2015-66081 JP-A-2002-320627

Because the vertical dental chair moves up and down vertically, there is no interference between the lifting device and the foot switch provided on the base. On the other hand, when the link-type dental chair descends, the legs fall down toward the installation surface, so that there is no place for the foot switch as in the vertical dental chair. That is, in the case of a link-type dental chair, if a foot switch is arranged around the leg on the back side of the backrest, the leg that falls down toward the installation surface and the foot switch interfere with each other. Therefore, in general, a wired or wireless foot switch is separately prepared for the link-type dental chair, and the foot switch is arranged at a position where it does not interfere with the legs.

Because the foot switch of the vertical dental chair is provided on the base, various types are used. For example, in the case of a joystick type, since the operation stick is horizontally arranged, the tilting direction of the operation stick and the elevating direction of the vertical dental chair coincide with each other, so that the practitioner performs a vertical dental operation based on the operation. It is easy to think of the movement of the chair. That is, when the operation stick is tilted upward, the vertical dental chair is raised, and when the operation stick is tilted downward, the vertical dental chair is lowered. On the other hand, since the foot switch of the link type dental chair is prepared separately and placed at an arbitrary position on the installation surface, the joystick type should not be adopted. In other words, if the joystick-type foot switch is placed on the installation surface, the operation stick is placed vertically, and the foot switch itself reluctantly moves with respect to the installation surface as the operation stick tilts due to operation. May be. In addition, since the tilting direction of the operation stick does not match the elevating direction of the link-type dental chair, it is difficult for the practitioner to think of the operation of the link-type dental chair based on the operation.

The present disclosure has been proposed in view of the above circumstances. That is, an object of the present invention is to provide a dental chair foot switch that is easy to operate in a dental chair that moves up and down by a link mechanism, and a dental chair provided with the dental chair foot switch.

In order to achieve the above object, a dental chair foot switch according to the present disclosure includes a base portion installed on an installation surface, and a leg portion that is connected to the base portion and falls down toward the installation surface, or a leg portion that rises. And a chair portion connected to the leg portion, which falls when the leg portion falls down, or a chair portion which rises when the leg portion is raised, and a dental chair foot switch for changing a state of the dental chair having the chair portion. And being formed on a part of the base around the fallen leg.

歯科 The dental chair foot switch according to the present disclosure is characterized in that the foot switch is disposed at a rear end of the base, on which the leg falls down.

A dental chair foot switch according to the present disclosure has a main body portion elongated in a width direction of the chair portion, and a plurality of operation units arranged side by side in a longitudinal direction of the main body unit, and the operation unit Is a joystick type.

The dental chair foot switch according to the present disclosure is configured such that the main body portion is a cover portion that is attached to and detached from the base portion, and the state of the dental chair that is covered by the cover portion and interlocks with the operation portion. Selecting means for selecting.

歯科 A dental chair according to the present disclosure includes the dental chair foot switch described above.

歯科 The dental chair foot switch according to the present disclosure is formed on a part of the base around the fallen leg. That is, since the dental chair foot switch is arranged at a position that does not interfere with the leg portion that is tilted toward the installation surface, it does not interfere with the dental chair that moves up and down. In addition, the dental chair foot switch is formed on a part of the base, and the dental foot switch itself does not move unintentionally during operation, so select a type that is easy for the practitioner to operate. can do.

FIG. 1 is a perspective view of a dental care apparatus having a dental chair provided with a dental chair foot switch according to an embodiment of the present disclosure. FIG. 2A is a rear view showing an appearance of a dental chair provided with the dental chair foot switch according to the embodiment of the present disclosure. FIG. 2B is a side view showing the appearance of the dental chair provided with the dental chair foot switch according to the embodiment of the present disclosure. FIG. 3A is a side cross-sectional view showing a cross section of the dental chair provided with the dental chair foot switch according to the embodiment of the present disclosure, in a state where the dental chair is disposed at the lowest position. FIG. 3B is a side cross-sectional view showing a cross section of the dental chair provided with the dental chair foot switch according to the embodiment of the present disclosure, in a state where the dental chair is arranged at the uppermost position. FIG. 4A is a perspective view showing an appearance in a state where a dental chair provided with a dental chair foot switch according to an embodiment of the present disclosure is disposed at the uppermost position and a cover is removed. FIG. 4B is a rear view showing the appearance in a state where the dental chair provided with the dental chair foot switch according to the embodiment of the present disclosure is located at the uppermost position and the cover is removed.

歯科 The dental chair foot switch according to the present disclosure is disposed at a rear end of the base, on which the legs fall down. With this configuration, the dental chair foot switch is arranged near the back side of the backrest of the dental chair, and this position substantially matches the position where the practitioner's leg is arranged during the operation. Therefore, the operator can easily operate.

The dental chair foot switch according to the present disclosure has a main body that is long in the width direction of the chair, and a plurality of operation units that are arranged in the longitudinal direction of the main body. That is, the plurality of operation units are arranged at positions that do not hinder the elevation of the dental chair and that are easy for the practitioner to operate. Also, various functions can be linked with each operation unit.

少なくとも At least one of the operation units is a joystick type. With this configuration, since the tilting direction of the operation stick and the elevating direction of the dental chair coincide with each other, the practitioner can easily recognize the operation of the dental chair based on the operation. Therefore, the practitioner can operate the dental chair foot switch without visual observation during the treatment.

The dental chair foot switch according to the present disclosure has a main body, a cover that is attached to and detached from the base, and a cover that is covered by the cover and selects a state of the dental chair that is interlocked with the operation unit. Selection means. With this configuration, the practitioner or the operator can easily operate the selection unit by removing the cover.

歯科 The dental chair according to the present disclosure can produce the same effect as the dental chair foot switch described above.

The following is a description of a dental chair footswitch according to an embodiment of the present disclosure and a dental chair having the dental chair footswitch. FIG. 1 shows the external appearance of a dental care apparatus 1 having a dental chair 10. 2A and 2B show the external appearance of the dental chair 10, and FIGS. 3A and 3B show side cross sections of the dental chair 10. FIGS. 24 and 4B show one embodiment of the dental foot switch 27 in the dental chair 10. In the following, as shown in FIG. 1, the front of the dental chair 10 is forward, the back is rear, one side of the width direction of the dental chair 10 is left, the other side is right, The direction in which the chair 10 moves up and down is upward or downward.

As shown in FIG. 1, the dental care apparatus 1 includes a dental chair 10 on which a subject, who is a patient, lies, a spitton 2 for the subject to spout water contained in the mouth, and a A dental light 3 for illuminating the mouth, an instrument holding device 4 for holding various instruments (not shown), and an instrument for holding the instrument in the same manner as the instrument holding device 4. And a doctor table 5 provided with a panel for controlling instruments and instruments. The spitton 2, the dental light 3, the instrument holding device 4 and the doctor table 5 are supported by a main unit 6. The main unit 6 is installed next to the dental chair 10.

ピット The spittons 2 are bowls and are installed on the main unit 6. The dental light 3 is connected to a distal end of a first movable arm 7 attached to the main device 6. The instrument holding device 4 is connected to a distal end of a second movable arm 8 attached to the main device 6. The doctor table 5 is connected to a distal end of a third movable arm 9 attached to the main unit 6. Each movable arm 7, 8, 9 has a plurality of joints. Therefore, the dental light 3, the instrument holding device 4, and the doctor table 5 can move freely via the movable arms 7, 8, 9. The instrument is, for example, a turbine, a micro motor, an air motor, a scaler, a syringe, or the like.

As shown in FIGS. 2A, 2B, 3A, and 3B, the dental chair 10 includes a base 11 installed on an installation surface, a leg 14 connected to the base 11, It has a chair unit 15 connected to the leg unit 14, a lifting mechanism 22 for raising and lowering the chair unit 15, and a dental foot switch 27 operated when changing the state of the dental chair 10. .

The chair portion 15 includes a lower body mounting portion 16 extending forward, a backrest portion 19 disposed behind the lower body mounting portion 16, a headrest 20 connected to an upper end of the backrest portion 19, and a lower body portion. An armrest 21 arranged on the side of the mounting portion 16. The lower body placing section 16 is formed integrally with a rear placing section 17 on which the buttocks and thighs of the subject are placed, and a front placing section 18 on which the subject's lower legs are placed. I have. The backrest 19 falls or gets up with respect to the lower body placing part 16. The headrest 20 falls with respect to the backrest 19, and rises and moves up and down.

Therefore, the operation of the dental chair 10 is ascending and descending, tilting, and undulating. Based on these operations, the dental chair 10 is in a state where the chair unit 15 is lowered and arranged at the lowest position, and the chair unit 15 is Ascended and placed at the uppermost position, with the backrest 19 raised, with the backrest 19 lying down, with the headrest 20 raised, with the headrest 20 lying down, and with the headrest 20 lowered to the bottom There is a state where the headrest 20 is raised and arranged at the uppermost position, a state where each part is arranged at an arbitrary position from the lowest to the uppermost in each state. The dental chair 10 changes into various states. In addition, if the dental chair does not operate the headrest 20, there is no state of the dental chair based on the operation of the headrest 20.

Furthermore, the state of the dental chair 10 also changes depending on, for example, the illuminance of the dental light 3, the control of the instrument, and the outflow of water at the spitton 2.

The base 11 has a flat plate-shaped base 12 and a base main body 13 attached to an upper front part of the plate-shaped base 12. The plate-shaped base portion 12 has a substantially rectangular shape which is long in the front and rear direction, and has a wire portion (not shown) inside. The base body 13 includes, for example, a power supply (not shown) for driving a driving unit for changing the state of the dental chair 10, a controller (not shown), and the like.

Because the leg portion 14 is configured to fall toward the installation surface with the base portion 11 as a fulcrum or to get up and move away from the installation surface, the dental chair 10 moves up and down. More specifically, the leg 14 has an elevating mechanism 22, which is realized by a parallel link and a driving unit 26 that operates the parallel link. The parallel link includes a long drive link 23, a long driven link 24, and a chair-side link 25 connected to a lower portion of the chair 15. The driving link 23 and the driven link 24 have one end connected to the base 11 and the other end connected to the chair-side link 25. The drive unit 26 is, for example, a hydraulic or pneumatic piston cylinder. One end is connected to the base 11 and the other end is connected to the drive link 23.

(4) When the piston cylinder extends, the driven link portion 24 rises together with the drive link portion 23, and at the same time, the chair-side link portion 25 (chair portion 15) separates from the installation surface. Therefore, the chair 15 rises. Since the leg portion 14 is raised, the chair portion 15 is raised, so that the chair portion 15 is raised while moving forward along an arc-shaped trajectory. When the piston cylinder contracts, the driven link unit 24 falls down together with the drive link unit 23, and at the same time, the chair side link unit 25 (chair unit 15) approaches the installation surface. Therefore, the chair 15 descends. The trajectory of the chair 15 is the same as when the chair 15 moves up.

The dental foot switch 27 is disposed at the rear end of the base 11 and is configured as a part of the plate-shaped base 12. More specifically, the dental foot switch 27 is disposed behind the leg 14 in a state where the chair 15 has been lowered to the lowest position and has fallen. In other words, the dental foot switch 27 is arranged at a position that does not interfere with the leg 14 and the chair 15.

As shown in FIGS. 2A, 2B, 3A, 3B, 4A, and 4B, the dental foot switch 27 has a body portion 28 that is long in the width direction and protrudes backward and curves. And a plurality of

operation units

30a, 30b, 30c arranged side by side in the longitudinal direction of the main body 28. The main body 28 selects a cover 29 to be attached to and detached from the plate-like base 12 of the base 11, and a state of the dental chair 10 covered with the cover 29 and interlocked with the operation unit 30. Selection means 31 for The cover part 29 has a shape protruding upward from the plate-like base part 12, and a plurality of holes corresponding to the number of the

operation parts

30a, 30b, 30c are formed on the rear surface. The

operation units

30a, 30b, 30c are of a joystick type, for example. The

operation units

30a, 30b, and 30c are rod-shaped, project slightly upward from the horizontal toward the rear from the main body unit 28, and are slightly radially directed in a direction away from each other. The

operation units

30a, 30b, 30c are tilted up, down, left, and right. The number, interval, and angle of the operation units are arbitrary.

The selection means 31 associates the

operation units

30a, 30b, and 30c with the elevation of the dental chair 10, the operation of the backrest 19, and the operation of the headrest 20. The selecting unit 31 is, for example, a circuit board, a dip switch, a connector for connecting wiring, and the like. The dental chair 10 is provided for each of the

operation units

30a, 30b, and 30c by changing a connection, selecting a dip switch, and connecting wiring. Is set in conjunction with the operation. For example, the elevation of the dental chair 10 is linked to the first operation unit 30a, the operation of the backrest unit 19 is linked to the second operation unit 30b, and the operation of the headrest 20 is linked to the third operation unit 30c. In addition, for example, the first operating unit 30a is linked to the operation to the state based on the height of the dental chair 10 and the angle of the backrest unit 19 recorded in the control unit in advance, and the dental unit The second operation unit 30b is linked with the operation of returning the chair 10. Further, for example, the first operation unit 30a is linked to the adjustment of the illuminance of the dental light 3, the second operation unit 30b is linked to the control of the instrument, and the third operation unit 30c is linked to the water of the spitton 2. Synchronize. Note that the wiring is passed through a wire section of the plate-shaped base section 12 and is connected to a control section of the base body section 13.

歯科 As described above, the dental foot switch 27 and the dental chair 10 are configured. Next, the effects of the dental foot switch 27 and the dental chair 10 will be described.

The dental foot switch 27 is disposed at the rear end of the base 11 of the dental chair 10, the chair 15 descends to the lowest position, and is disposed behind the leg 14 in the fallen state. It is configured as a part of the base 12 (see FIGS. 2A and 2B). That is, the dental foot switch 27 is arranged at a position where it does not interfere with the leg 14 and the chair 15. Therefore, even if it is a so-called link type dental chair, the chair part 15 and the dental foot switch 27 do not interfere.

In addition, the dental foot switch 27 is configured as a part of the plate-shaped base portion 12, and the dental foot switch 27 itself does not unintentionally move during operation. Of the dental foot switch 27 can be selected.

For example, if the

operation units

30a, 30b, and 30c are of a joystick type, the tilt direction of the

operation units

30a, 30b, and 30c and the direction of operation of the dental chair 10 match, so that the practitioner performs dental operations based on the operation. It is easy to think about the operation of the chair 10. For example, if the first operation unit 30a is tilted upward, the dental chair 10 is raised, and if the first operation unit 30a is tilted downward, the dental chair 10 is lowered. When the second operation unit 30b is tilted upward, the backrest 19 is raised, and when the second operation unit 30b is tilted downward, the backrest 19 is tilted. When the third operation unit 30c is tilted upward, the headrest 20 is raised or raised, and when the third operation unit 30c is tilted downward, the headrest 20 is tilted or lowered. Therefore, the practitioner can operate the dental chair foot switch 27 without visual observation during the treatment. Note that the dental chair 10 may be operated by tilting the

operation units

30a, 30b, 30c left and right.

In addition, since the dental foot switch 27 is arranged at the rear end of the base 11, the dental foot switch 27 is arranged near the back side of the backrest 19 of the dental chair 10. The position almost coincides with the position where the leg is arranged. Therefore, the operator can easily operate.

The dental chair foot switch 27 includes a main body 28 that is long in the width direction and a plurality of

operation units

30a, 30b, and 30c that are arranged in the longitudinal direction of the main body 28 (FIG. 2A). , Figure 2B). That is, the plurality of

operation units

30a, 30b, and 30c are arranged at positions that do not hinder the elevation of the dental chair 10 and that are easy for the operator to operate. In addition, various operations of the dental chair 10 can be linked to each of the

operation units

30a, 30b, and 30c according to the practitioner's preference.

The dental chair foot switch 27 includes a cover part 29 in which a main body part 28 is attached to and detached from the plate-like base part 12 of the base part 11, and a cover part 29 covered with the cover part 29 and interlocked with an operation part 30. And a selection unit 31 for selecting an operation of the chair 10 (see FIGS. 3A, 3B, 4A, and 4B). With this configuration, a practitioner or an operator can easily operate the selection unit 31 by removing the cover unit 29, and each

operation unit

30 a, 30 b, and 30 c is linked to any operation of the dental chair 10. Can be set by a simple operation.

The dental chair 10 can produce the same effect as the dental chair foot switch 27 described above.

As another embodiment of the present disclosure, the dental foot switch may be configured to be attached to an existing dental chair later. In this case, the dental foot switch is arranged at a position that does not interfere with the leg and the chair. In another embodiment, the operation unit may be directed to the side, and the dental foot switch may be disposed on the side of the base. However, the condition is that it does not hinder the practitioner from moving. In another embodiment, the dental foot switch may be a push type. Further, as another embodiment, at least one of the operation units is a joystick type, and the other is, for example, a depression type that is pressed downward, a volume switch type, and a pressing type that operates the dental chair by pressing and holding it. Alternatively, an ON / OFF type in which the operation and stop of the dental chair are switched each time the button is pressed may be used.

Although the embodiments of the present disclosure have been described above in detail, the present disclosure is not limited to the above embodiments. The present disclosure can be subjected to various design changes without departing from the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Dental care apparatus 2 Spitton 3 Dental light 4 Instrument holding device 5 Doctor table 6 Main unit 7 First movable arm 8 Second movable arm 9 Third movable arm 10 Dental chair 11 Base 12 Plate base 13 Base Body 14 Leg 15 Chair 16 Lower Body Placement 17 Rear Placement 18 Front Placement 19 Backrest 20 Headrest 21 Armrest 22 Elevating Mechanism 23 Drive Link 24 Driven Link 25 Driven Chair 25 Link unit 26 Drive unit 27 Dental chair foot switch 28 Main unit 29

Cover unit

30a, 30b, 30c Operation unit 31 Selection means

Claims

A base part installed on the installation surface,
A leg that is connected to this base and falls down or rises toward the installation surface,
A dental chair foot switch for changing a state of a dental chair having a chair portion connected to the leg portion and lowered by falling down, or rising when the leg portion is raised, ,
Formed on a part of the base around the fallen leg,
A dental chair foot switch, characterized in that:
Of the base portion, the leg portion was disposed at a rear end on the side where the leg falls down,
The dental chair foot switch according to claim 1, wherein
A body portion elongated in the width direction of the chair portion,
A plurality of operation units arranged side by side in the longitudinal direction of the main body,
At least one of the operation units is a joystick type,
The dental chair foot switch according to claim 1 or 2, wherein the foot switch is a dental chair.
Wherein the main body is
A cover unit that is attached to and detached from the base unit;
Selecting means for selecting an operation of the dental chair, which is covered with the cover portion and interlocked with the operation portion,
The dental chair foot switch according to claim 3, wherein
A dental chair footswitch according to any one of claims 1 to 4,
A dental chair, characterized in that: