KR200431418Y1 - Dental unitchair having a motor-powered headrest - Google Patents

Abstract

The present invention relates to a dental unit chair, and more particularly to a dental unit chair that can adjust the headrest height of the unit chair up and down as well as the inclination angle of the headrest.

The present invention is a dental unit chair, seating seat that the patient is sitting; A backrest supporting the patient's back; A headrest supporting the neck of the patient; And a connecting member connecting the backrest and the headrest, wherein the backrest includes a first motor for moving the connecting member up and down.

Unit Chair, Headrest, Motor, Shanghai East, Slope

Description

Dental unit chair with electric headrest {DENTAL UNITCHAIR HAVING A MOTOR-POWERED HEADREST}

1 is a view showing the configuration of a conventional dental unit chair,

2 is a view showing the configuration of a chair unit of a dental unit chair according to an embodiment of the present invention;

3 is a view showing a configuration inside the backrest of the chair of FIG.

Figure 4 is a view showing the configuration of the headrest portion of the dental unit air according to an embodiment of the present invention.

In the drawings according to the present invention, the same reference numerals are used for components having substantially the same configuration and function.

* Explanation of symbols for main parts of drawings *

100: headrest 110: rotation frame

120: driven gear 122: driven gear protrusion

200: backrest 300: chair

410: first motor 420: first drive gear

421: first gear shaft 422: first drive gear protrusion

500; Connecting member 510: gear groove

610: second motor 620: second drive gear

621: first gear shaft 622: first drive gear protrusion

The present invention relates to a dental unit chair, and more particularly to a dental unit chair that can adjust the headrest height of the unit chair up and down as well as the inclination angle of the headrest.

The dental unit chair is a medical device used for various dental treatments and treatments by comprehensively equipping the equipment necessary for the dental practice, and the patient can sit on the chair and the doctor can see the patient's mouth easily. It is a structure that there is.

1 is a view showing the configuration of a conventional dental unit chair.

Referring to FIG. 1, a conventional dental unit chair 10 includes a unit chair main body 11, a chair part 12 on which a patient sits, and a frame 16 connected to the chair part 12 and the unit chair main body 11. ), A monitor 13, a lighting fixture 14, and a holder 15 on which various treatment devices are placed are integrally formed on the frame.

In addition, the chair part 12 is composed of a seat plate, a backrest and a headrest.

In the conventional dental unit chair, the headrest of the chair is fixed to the backrest. However, when connecting the headrest and the backrest, the height of the headrest is most often adjusted based on the average adult's height and the sitting height, but the height or the sitting height may be different depending on the patient receiving the dental treatment. As a result, the length of the headrest may vary depending on the patient, so there is a problem that the dental care should be taken in a very uncomfortable state.

The present invention was devised to solve the above problems, and an object of the present invention is to provide a dental unit chair capable of adjusting the height of the headrest connected to the backrest.

Configuration of the present invention for achieving the above object is a dental unit chair, seating seat that is a patient sitting; A backrest supporting the patient's back; A headrest supporting the neck of the patient; And a connecting member connecting the backrest and the headrest, wherein the backrest includes a first motor for moving the connecting member up and down.

In a preferred embodiment, the backrest includes a first drive gear connected between the first motor and the connecting member, the first driving gear including a first gear shaft and first gear protrusions, wherein the connecting member includes the first driving gear. Gear grooves corresponding to the gear projection of the single-drive gear are formed.

In a preferred embodiment, the backrest includes a connecting member guide rail surrounding the connecting member so that the connecting member can move up and down with a constant trajectory, and the connecting member is a motor transmitted through the gear shaft and the gear protrusion. Receives the torque of the through the gear grooves and moves up and down along the connecting member guide rail.

In a preferred embodiment, the headrest comprises: a second motor for tilting the headrest; And a second driving gear including a second gear shaft and second gear protrusions connected to the second motor.

In a preferred embodiment, the upper end of the connecting member is a rotation frame bearing the connecting member is formed integrally with the driven gear having the driven gear projections corresponding to the second gear projection, the headrest is connected to the second Torque of the motor, which is transmitted through the gear shaft and the second gear protrusions, is transmitted through the driven gear protrusions of the rotating frame to rotate about the rotating frame.

In a preferred embodiment, buttons for controlling the first motor and the second motor are provided at predetermined portions of the chair.

In a preferred embodiment, buttons for controlling the first motor and the second motor are provided on the footswitch of the chair.

In a preferred embodiment, buttons for controlling the first motor and the second motor are provided on a footswitch of a chair operating in a wireless manner.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a view showing the configuration of the chair portion of the dental unit chair according to an embodiment of the present invention, Figure 3 is a view showing the configuration inside the backrest of the chair portion of FIG.

Referring to the drawings, the dental unit chair according to an embodiment of the present invention comprises a main body, a chair portion and a foot switch.

The chair is composed of a seat plate 300, the backrest 200 and the headrest 100, the connection member 500 for connecting them between the backrest 200 and the headrest 100 in the form of a metal bar Is mounted.

The seat plate 300 is a part where the hip part of the patient touches, the headrest 100 is a part where the patient's head rests, and the backrest 200 is a part where the patient leans back.

A first motor 410 and a first driving gear 420 are built into the backrest 200, and the connecting member 500 is guided to move up and down in a constant trajectory inside the backrest 200. A connecting member guide rail is formed in a shape to surround the connecting member 500.

The first driving gear 420 is composed of a first gear shaft 421 and the first gear protrusions 422, the first gear shaft 421 is connected to the rotation shaft of the first motor 410 or It is formed integrally with the rotation shaft of the motor 410.

Gear grooves 510 corresponding to the first gear protrusion 422 of the first driving gear 420 are formed on one surface of the connection member 500. When the first motor 410 rotates, The first gear shaft 421 rotates, and the first gear protrusions 422 formed on the circular plate or the circular column connected to the first gear shaft 421 rotates, the corresponding gear of the connecting member 500 The grooves 510 are moved in the up or down direction.

Therefore, the connection member 500 receives the torque of the first motor 410 transmitted through the first gear shaft 421 and the gear protrusions 422 through the gear grooves 510 and the connection. It moves up and down along the member guide rails so that the height of the headrest 100 can be changed up and down.

Figure 4 is a view showing the configuration of the headrest portion of the dental unit air according to an embodiment of the present invention.

Referring to FIG. 4, the headrest 100 includes a second motor 610 for tilting the headrest 100, that is, for changing the inclination angle of the headrest 100.

The second motor 610 is formed on a disc or circular column connected to the second shaft 620 and the second gear shaft 621 that is connected to or integral with the rotation axis of the second motor 610. The second driving gear 620 including the second gear protrusions 622 is connected.

At the upper end of the connecting member 500, a rotating frame 110, which is an axis for rotating the headrest 100 to be tilted, is bearing-connected to the connecting member 500. The driven gear 120 having the driven gear protrusions 122 corresponding to the second gear protrusions 622 of the second driving gear 620 is connected. The rotating frame 11 is fixed to the headrest 100 and is integrally formed with the driven gear 120.

Therefore, when the second motor 610 is rotated, the second gear shaft 621 rotates, and the second driving gear 620 rotates, and the driven gear 610 engaged with the second gear protrusions 622. 120 will rotate.

As a result, the headrest 100 receives the torque of the second motor 610 transmitted through the second gear shaft 621 and the second gear protrusions 622 to form the driven gear protrusions of the driven gear 120. The tilt angle, that is, the inclination angle, changes according to the degree of rotation of the driven gear 120 with the axis of rotation frame 110 received through 122 fixed to the headrest 100.

Buttons for controlling the first motor 410 and the second motor 610 are installed in the main body or the chair.

In addition, buttons for controlling the first motor 410 and the second motor 610 may be installed in the foot switch, the foot switch may be implemented in a wireless manner.

In the above, the configuration and operation of the present invention is shown according to the above description and drawings, but this is merely described, for example, and various changes and modifications are possible without departing from the spirit and scope of the present invention. .

Although the height or the sitting height may be different and the length of the neck may be different according to the patient receiving the dental treatment, in the conventional unit chair, the headrest of the chair is fixed to the backrest. The height did not fit the body of the person was very inconvenient to receive dental care, but as described above, according to the present invention, the height of the headrest can be adjusted according to the physical condition of the patient, so that the patient There is an advantage in that you can receive dental care.

In addition, there is an advantage that the doctor can easily adjust the height of the headrest because the height of the headrest is adjusted by the driving of the motor only by pressing a button, without the need for the doctor to manually adjust the height of the headrest. .

Claims (8)

In the dental unit chair, A seat plate in which the patient sits; A backrest supporting the patient's back; A headrest supporting the neck of the patient; And And a connecting member connecting the backrest and the headrest. The backrest has a dental unit chair provided with an electric headrest, characterized in that it comprises a first motor for moving the connecting member up and down. The method of claim 1, The backrest includes a first driving gear connected between the first motor and the connecting member and configured to include a first gear shaft and first gear protrusions. And a gear groove corresponding to the gear protrusion of the first driving gear is formed in the connection member. The method of claim 1, The backrest includes a connecting member guide rail surrounding the connecting member so that the connecting member can move up and down with a predetermined trajectory, The connecting member is a dental unit chair having an electric headrest, characterized in that for receiving the torque of the motor transmitted through the gear shaft and the gear projection through the gear grooves to move up and down along the connecting member guide rail. . The method according to any one of claims 1 to 3, The headrest is: A second motor for tilting the headrest; And And a second driving gear including a second gear shaft and second gear protrusions connected to the second motor. The method of claim 4, wherein The upper end of the connecting member is a bearing connected to the connecting member is a rotating frame formed integrally with the driven gear having the driven gear projections corresponding to the second gear projection, The headrest receives the torque of the motor transmitted through the second gear shaft and the second gear projections through the driven gear protrusions of the rotating frame to rotate the rotating headrest as a shaft Dental unit chair provided. The method of claim 5, Dental unit chair provided with an electric headrest, characterized in that buttons for controlling the first motor and the second motor is installed in a predetermined portion of the unit chair. The method of claim 5, Dental unit chair with electric headrest, characterized in that buttons for controlling the first motor and the second motor is installed on the footswitch of the unit chair. The method of claim 5, And a button for controlling the first motor and the second motor is provided on a foot switch of a unit chair operating in a wireless manner.

Images