JP6246053B2 - Dental treatment chair - Google Patents

Description

  The present invention relates to a dental treatment chair, and more particularly to a dental treatment chair that can be easily boarded and aged by an elderly person or a physically handicapped person.

  Conventionally, for example, a dental treatment chair shown in FIG. 7 is generally used as a dental treatment chair. A dental treatment chair 100 shown in FIG. 7A includes a headrest 101, a backrest 102, a contour seat 103, a legrest 104, and a foot step 105. When sitting on the chair 100, the user sits on the foot step 105 and then sits on the contour seat 103. For this reason, an elderly person or a physically handicapped person has to sit down after riding on the narrow foot step 105, which places a burden on getting on and off the dental treatment chair 100.

  Further, the dental treatment chair 100 ′ shown in FIG. 7B is configured such that the leg rest 104 and the foot step 105 of the dental treatment chair 100 shown in FIG. 7A are integrally formed with the contour seat 103. , A headrest 101, a backrest 102, and an integrated contour sheet 106. When the patient sits on the dental treatment chair 100 ′, the patient cannot sit down from the front, and inevitably, the buttocks are placed on the integrated contour sheet 106 from the side, and then both feet are extended from the integrated contour sheet 106. I had to put it on the club. For this reason, there has been a problem that the operation of rotating the waist and the operation of raising the legs is difficult for the elderly and the physically handicapped.

  Therefore, for example, in Patent Document 1, a handrail member is provided in a water supply / drainage box in a dental treatment unit so that the handrail member can be extended and retracted, and the handrail member guides the operation of the patient when getting on and off the dental treatment. Further, Patent Document 2 discloses that the shape of a recess for placing the patient's buttocks formed in the center of the contour sheet is devised.

Japanese Patent Laid-Open No. 2004-81713 JP 2007-244751 A

  However, the dental treatment chair disclosed in Patent Document 1 or Patent Document 2 allows the patient to take basically the same getting on and off posture as before, and the patient is placed on a narrow footstep. It was necessary to change the position, rotate the waist on the contour seat, and raise the foot.

  The present invention has been made in view of these circumstances, and the patient can automatically move the dental treatment chair to the medical position after simply performing an operation of sitting on the contour seat, and getting on and off. It is an object of the present invention to provide a dental treatment chair that does not require the operation of rotating the waist or raising the legs sometimes and can be easily taken on and off by an elderly person or a physically handicapped person.

In order to solve the above-mentioned problem, the invention of claim 1 is a dental treatment chair provided with a backrest, a contour seat, and a legrest, wherein the legrest and the backrest are relative to the contour seat. A drive mechanism that is provided so as to be able to rise and fall, and wherein the contour seat and the leg rest are provided so as to be rotatable with respect to the backrest, and the legrest and the backrest are raised and lowered with respect to the contour seat; And a drive mechanism for rotating the contour seat and the legrest with respect to the backrest, wherein the legrest has the backrest, the contour seat, and the legrest arranged in a straight line. Only when the legrest is in a tilted state. It is characterized in that it has to be a lying state crest.

The invention of claim 2 is characterized in that, in the invention of claim 1, the contour seat has an armrest, and the armrest is rotatable with the contour seat with respect to the backrest.

  According to the present invention, the patient simply performs the operation of sitting on the contour seat from the lateral direction with respect to the dental treatment chair, and then automatically rotates the contour seat and the leg rest and puts the leg rest in a tilted state. Because the dental treatment chair can be used as a medical position, patients do not need to rotate their hips or raise their legs when getting on and off, and elderly people and physically handicapped people can get on and off easily. it can.

It is a figure which shows the state of a seating position as an example of the dental treatment chair which concerns on this invention. It is a figure for demonstrating the drive mechanism of the contour sheet | seat of the dental treatment chair which concerns on this invention. It is a figure which shows the state of the boarding / alighting position of the dental treatment chair which concerns on this invention. It is a figure which shows the state of the medical treatment position of the dental treatment chair which concerns on this invention. It is a figure which shows another example of the drive mechanism of the dental treatment chair which concerns on this invention. It is a figure which shows another example of the drive mechanism of the leg rest of the dental treatment chair which concerns on this invention. It is a figure for demonstrating the conventional dental treatment chair.

Hereinafter, preferred embodiments according to a dental treatment chair of the present invention will be described with reference to the drawings. In the following description, the configurations denoted by the same reference numerals in different drawings are the same, and the description thereof may be omitted.
FIG. 1 is a view showing a sitting position as an example of a dental treatment chair according to the present invention. FIG. 1 (A) shows the dental treatment chair from the side, and FIG. 1 (B) shows the dental treatment chair. It is the figure seen from the upper part. FIG. 2 is a view for explaining the contour seat drive mechanism, and FIG. 3 is a view showing a state of the getting-on / off position. Further, FIG. 4 is a diagram showing a state of the medical position.

  The dental treatment chair 10 includes a base 11, an elevating mechanism 12, a base frame 13, a rotating mechanism 14, a contour seat frame 15a, a backrest frame 16a, a headrest frame 17a, and a legrest frame 18a. The frame 15a, the backrest frame 16a, the headrest frame 17a, and the legrest frame 18a are respectively provided with a contour seat cushion 15b, a backrest cushion 16b, a headrest cushion 17b, and a legrest cushion 18b.

  The contour seat frame 15a and the contour seat cushion 15b are the contour seat 15, the backrest frame 16a and the backrest cushion 16b are the backrest 16, the headrest frame 17a and the headrest cushion 17b are the headrest 17, and the legrest frame 18a. And legrest cushion 18b constitute legrest 18, respectively. In FIG. 1, for example, the backrest cushion 16b is provided on the backrest frame 16a. However, the backrest cushion 16b may wrap the backrest frame 16a. The same applies to the other cushions.

  The elevating mechanism 12 connects the base 11 and the base frame 13, and supports the base frame 13 movably in the vertical (up and down) direction with respect to the base 11. The backrest frame 16a is attached to the base frame 13 so as to be able to be tilted (rotated) around the shaft member 19, and can be tilted by a drive mechanism (not shown). Further, as will be described later, the legrest frame 18a is attached to the contour seat frame 15a so as to be able to be tilted (rotated) and can be tilted by the drive mechanism 40.

  The contour seat frame 15 a is provided so as to be rotatable by the rotation mechanism 14 with respect to the base frame 13, and can be rotated about 90 ° with respect to the base frame 13 by the drive mechanism 30. As a result, the contour seat 15 and the leg rest 18 are rotated by about 90 ° with respect to the backrest 16 attached to the base frame 13. In the present embodiment, the drive mechanism 30 is a linearly movable drive mechanism such as an electromagnetic solenoid or an air cylinder. As shown in FIG. 2, one of the drive mechanisms 30 is supported by a shaft member 32 with respect to the base frame 13. The other end is supported by the shaft member 33 with respect to the contour seat frame 15.

  And in the state which extended the rod (straight advance member) 31 of the drive mechanism 30, as shown in FIG.1 (B) and FIG. 2, the backrest 16, the contour seat 15, and the legrest 18 are arranged in a linear form. . In the state where the rod 31 of the drive mechanism 30 is contracted, the contour seat 15 and the leg rest 18 are arranged in a state rotated about 90 ° with respect to the backrest 16, as shown in FIG. And when getting on and off the dental treatment chair 10, the rod of the drive mechanism 30 is contracted so that the patient sits against the contour seat 15 from the lateral direction of the dental treatment chair 10, but the patient It is possible to get on and off the seat 15 from the front side.

  The legrest frame 18a is attached to the contour seat frame 15a by the shaft member 20 so that the leg seat frame 18a can be tilted (rotated), but the contour seat frame 18a does not come into contact with the drive mechanism 40 when the contour seat 15 is rotated. It is regulated so that it does not rise (stand up) beyond a predetermined angle with respect to 15a. As the drive mechanism 40, a drive mechanism capable of linear motion such as an electromagnetic solenoid or an air cylinder is used as an example, similarly to the drive mechanism 30. The drive mechanism 40 has a main body attached to the base frame 13, and a roller 42 is pivotally supported by a shaft member 43 at the tip of a rod 41 that can advance and retreat.

  The rod 41 can be extended by operating the drive mechanism 40 only when the backrest 16, the contour seat 15 and the legrest 18 are arranged in a straight line. For this reason, when the contour seat 15 rotates from the boarding / alighting position shown in FIG. 3 to the seating position shown in FIG. 1, the legrest 18 does not come into contact with the drive mechanism 40. Then, as shown in FIG. 4, by operating the drive mechanism 40 and extending the rod 41, the roller 42 pushes the guide surface of the legrest frame 18a, so that the legrest 18 shifts from the raised state to the tilted state. I am letting. In addition, when the legrest 18 is brought into the fall state, the dental treatment chair 100 is shifted to the medical position shown in FIG. It is possible.

  Next, the operation of the dental treatment chair 100 will be described. First, when the patient sits on the dental treatment chair, as shown in FIG. 3, the operator or an assistant operates the drive mechanism 30 of the dental treatment chair 100 to contract the rod 31, so that the dental treatment is performed. The chair 100 is placed in the getting-on / off position in which the contour seat 15 and the legrest 18 are rotated about 90 ° with respect to the backrest 16. The patient sits on the contour seat 15 when the dental treatment chair 100 is in the boarding / exiting position shown in FIG. 3. In this case, an armrest is integrally provided on the contour seat 15 to help the patient get on and off. It is desirable to keep it. The armrest rotates together with the contour sheet 15.

  Next, when the patient sits on the contour seat 15 and operates the drive mechanism 30 to extend the rod 31, the dental treatment chair 100 has the backrest 16, the contour seat, as shown in FIG. 15 and leg rest 18 are set to a seating position arranged in a straight line. Further, the backrest 16 is brought into a tilted state, and the drive mechanism 40 is simultaneously operated to bring the legrest 18 into a tilted state, whereby the dental treatment chair 100 is brought into the medical position shown in FIG. . In this way, the patient simply performs the operation of sitting on the contour seat 15 from the lateral direction with respect to the dental treatment chair 100, and thereafter, the dental treatment chair 100 can be automatically placed in the medical position.

  When the patient gets off the dental treatment chair, the dental treatment chair 100 is shifted from the medical treatment position shown in FIG. 4 to the boarding / exiting position shown in FIG. 3 through the sitting position shown in FIG. This eliminates the need for the patient to perform an operation of rotating his / her waist or raising his / her leg when getting out of the dental treatment chair 100.

Next, a modified example of the drive mechanism will be described. FIG. 5 is a view showing another example of the drive mechanism of the dental treatment chair according to the present invention, and FIG. 6 is a view showing another example of the drive mechanism of the leg rest.
In the dental treatment chair 10 ′ shown in FIG. 5, a worm gear 132 is provided on a rotating shaft 131 that is rotated by a motor (not shown) provided on the base frame side as a drive mechanism 130 for rotating the contour seat. And the gear 133 attached to the contour sheet 15 are engaged with each other. Thereby, the contour seat 15 and the legrest 18 can be rotated with respect to the backrest 16 by rotating the motor.

  Further, in the drive mechanism shown in FIG. 6 as a drive mechanism for raising and lowering the legrest 18, a linear gear 142 is formed on a rod 141 that rotatably supports a roller 42 by a shaft member 43. 142 and a gear 143 rotated by a motor (not shown) are meshed. Thereby, the legrest 18 can be raised and lowered with respect to the contour seat 15 by rotating the motor.

  As described above, the embodiment of the present invention has been described, but the backrest, the contour seat, and the legrest are linearly arranged without configuring the contour seat to be rotatable with respect to the backrest of the dental treatment chair. When the object is provided so as to be rotatable with respect to the base, the backrest also rotates together with the rotation of the contour seat, so that the backrest does not collide with other components of the dental treatment unit, for example, Spitton. It is necessary to take up space. In addition, when getting on and off the dental treatment chair from the legrest side without rotating the contour seat, it is necessary to provide a space on the legrest side, and in any case, a large space is required to arrange the dental treatment unit. .

DESCRIPTION OF SYMBOLS 10,100 ... Dental treatment chair, 11 ... Base, 12 ... Elevating mechanism, 13 ... Base frame, 14 ... Rotating mechanism, 15 ... Contour seat, 15a ... Contour seat frame, 15b ... Contour seat cushion, 16 ... Backrest , 16a ... Backrest frame, 17 ... Headrest (Ahead), 17a ... Headrest frame, 17b ... Headrest cushion, 18 ... Legrest, 18a ... Legrest frame, 18b ... Legrest cushion, 19, 20 ... Shaft member 30, 130: Drive mechanism, 31: Rod, 32, 33 ... Shaft member, 40, 140 ... Drive mechanism, 41, 141 ... Rod, 42 ... Roller, 43 ... Shaft member, 101 ... Headrest (anchor base), 102 ... backrest, 103 ... contour seat, 104 ... legrest, 105 Foot step, 106 ... integrated contour sheet, 131 ... rotary shaft, 132 ... worm gear, 133 ... gear, 142 ... linear gear, 143 ... gear.

Claims (2)

A dental treatment chair with a backrest, contour seat and legrest,
The leg rest and the backrest are provided so as to be able to be tilted with respect to the contour seat, and the contour seat and the legrest are provided so as to be rotatable with respect to the backrest, and the legrest and the backrest are provided. A drive mechanism for raising and lowering the rest with respect to the contour seat; and a drive mechanism for rotating the contour seat and the leg rest with respect to the backrest ;
The legrest can be operated to the fall state only when the backrest, the contour seat, and the legrest are arranged in a straight line,
A dental treatment chair characterized in that when the legrest is brought into a fallen state, the backrest is brought into a fallen state in conjunction with the legrest.   The dental treatment chair according to claim 1, wherein the contour seat has an armrest, and the armrest is rotatable with the contour seat with respect to the backrest.

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