JP6108306B2 - Backrest expansion and contraction control device for barber and medical chairs - Google Patents

Description

  The present invention automatically detects the height of a person who sits on a hairdressing chair or medical chair and the back of the back (also called the back of a cat), and performs backrest according to the height and back of the circle. The present invention relates to a backrest expansion / contraction control device for a hairdressing and beauty chair or a medical chair that is set to an appropriate position according to the situation.

  Conventionally, the height of the seat and the height of the hair-washing ball are detected by a sensor in a barber / beauty chair, and the sensor detection value at the set height of the hair-washing ball and the detection value at the set height of the chair-seat are calculated to be the same value. There is an invention (Patent Document 1 and Japanese Patent Application Laid-Open No. 3-114405) that automatically sets the hair washing position by moving the chair seat up and down.

  In this invention, the length of the backrest is fixed, and a high-height patient needs to sit back, or the patient can adjust his / her neck when the backrest has occurred considerably. It becomes necessary, and the neck flexion becomes large, so that the person to be treated sits back, and the person to set the position again.

  In addition to Patent Document 1, there is a device (Patent Document 2, Japanese Utility Model Publication No. 60-161905) having a function of automatically adjusting the longitudinal direction of a chair. In this device, even in the case of a high-practice patient such as Patent Document 1 described above, it is possible to perform the treatment in an easy posture without re-sitting in front by moving the chair forward.

  However, even in the idea of Patent Document 2, since the backrest length is fixed, when the chair is moved forward, a gap is formed between the backrest and the hair wash ball, and the back of the patient is supported during that time. It was not easy because there was no part to do.

Japanese Patent Laid-Open No. 3-114405 Japanese Utility Model Publication No. 60-161905

  Conventionally, the optimum position adjustment according to the height of the person to be treated cannot be automatically performed, and it takes time for the person to perform the adjustment, and may not be in an appropriate position. . Further, for example, in the case of a circular back patient, it is necessary for the practitioner to perform adjustment again after automatic adjustment while keeping the chair height constant with respect to the height of the hair washing ball.

  The present invention is intended to solve the above-described problems. The object of the present invention is to determine the curvature of the back of a patient sitting on a barber or medical chair and the curvature of the back of the circle due to the bending of the spine by infrared rays, light rays. The position of the hair washing ball is detected by a sensor using ultrasonic waves, and the backrest is set at an appropriate position according to the height and the back of the circle according to the treatment, and the detection value from the sensor provided separately is used. Backrest expansion and contraction of hairdressing and beauty chairs and medical chairs so that hair can be washed by determining the height of the chair and the length of the backrest so that the head of the subject is located at the detected position I will provide a control device.

  The backrest expansion / contraction control device for a hairdressing and beauty chair or medical chair according to the present invention is intended to achieve the above-mentioned purpose, and the means of claim 1 is a backrest that is attached to the back of the seat portion of the chair so as to be raised and lowered. A sensor for detecting the shoulder position and back curvature of the back of the patient is attached to the backrest, and the backrest is adjusted according to the position of the shoulder detected by the sensor and the back curvature of the back. It is characterized by adjusting the amount of expansion and contraction.

  The means of claim 2 is characterized in that, in the above-mentioned claim 1, a lumbar support that contacts the waist of the patient is attached to the front side of the contracting backrest.

  According to a third aspect of the present invention, in the first aspect, the height of the shampoo ball is detected by a sensor different from the sensor attached to the backrest while detecting the position of the shoulder and the back curvature of the back detected by the sensor. The position is detected, and the height of the chair, the undulation angle of the backrest, and the amount of expansion / contraction of the backrest are adjusted so that the neck of the person to be treated is positioned on the neck receiver of the hair washing ball.

  As described above, the position of the subject's shoulder and the back curvature of the back are detected by a sensor attached to the backrest, and the amount of expansion / contraction of the backrest is adjusted according to this detection, so that the subject can be comforted. Can receive treatment in a proper posture.

  In addition, by attaching a lumbar support that contacts the waist of the patient on the front side of the contracting backrest, friction occurs between the back and backrest when the backrest expands and contracts. ) Is likely to occur, so that the lumbar support can be lifted against the waist to partially hit the front of the back, reducing the friction area to prevent back misalignment, and when the backrest is extended, the lumbar support hides the gap be able to.

  In addition, the height and position of the shampoo ball are detected by sensors during the shampooing of the subject to determine the chair height, backrest undulation angle, and the amount of backrest expansion and contraction. It can be positioned at the neck receiver of the ball, and therefore, the treatment subject can receive the shampoo in an easy posture.

It is a perspective view of the state where the length of the backrest of the hairdressing beauty chair and medical chair concerning the present invention was extended. It is a perspective view of the state which shortened the length of the backrest of FIG. It is a front view of FIG. It is a perspective view which shows the internal structure seen from the back side which extended the length of the backrest. It is a perspective view of the state which shortened the length of the backrest of FIG. It is the perspective view seen from the front side of FIG. It is a block circuit diagram. It is a flowchart which shows the operation | movement by the block circuit of FIG.

  1 to 6 show a hairdressing and beauty chair (hereinafter referred to as a chair), which is in a position facing a mirror (not shown) installed in a hairdressing salon and a patient seated on the chair. is set up. A hair wash ball (not shown) is installed at the lower part of the mirror.

  Reference numeral 11 denotes a seat portion in the chair 1, and a hydraulic cylinder (not shown) is attached to the back side of the seat portion 11, and the chair 1 is raised and lowered by the hydraulic cylinder. Reference numeral 12 denotes armrests attached to both sides of the seat portion 11, and the practitioner starts to detect the length of the back of the user to be described later and the curvature of the circular spine where the spine is bent, which will be described later. There are provided a switch group 12a for operating a switch and manually performing chair height, backrest undulation, and backrest expansion and contraction. Note that the switch for operation is not limited to this position, and may be disposed at a position where it can be easily operated with a hand or a foot.

  Reference numeral 13 denotes a legrest pivotally supported in front of the seat portion 11, and a step 13 a used for getting on and off the seat portion 11 is attached to the lower portion of the legrest 13. A backrest 14 is pivotally supported behind the seat 11 so as to be rotatable.

  A recess 14a is formed in the upper portion of the backrest 14, and a headrest 14b that can move up and down is attached to the recess 14a. Further, the backrest 14 can be extended and contracted by a backrest raising / lowering mechanism 2 described in detail later (see FIGS. 1 and 2).

  A lumbar support 15 is attached to the rear of the left and right armrests 12 to support the waist of the patient. As a function and effect of the lumbar support 15, when the backrest 14 is extended and contracted, friction occurs between the back and the backrest, and a sound and drag due to the friction are likely to occur. By hitting partly, not the entire back, reducing the friction area can prevent back misalignment, and the lumbar support can hide the gap when the backrest is extended.

Next, the backrest raising / lowering mechanism 2 will be described with reference to FIGS.
Reference numeral 21 denotes a backrest base, and upright pieces 21b pivotally supported by upright pieces 11a attached to a seat base (not shown) of the seat portion 11 are attached to the left and right ends of the lower horizontal member 21a. ing.

  21c is a ram shaft supporting piece on which a ram of a hydraulic cylinder (not shown) for raising and lowering a backrest is pivoted. The ram shaft supporting piece 21c is rotated by the cylinder so that the upright piece 21b is rotated. The backrest base 21 moves up and down as a fulcrum. Further, a cylinder side of a hydraulic cylinder 21 d for moving the backrest 14 up and down is pivotally supported on the upper surface of the backrest base 21. The ram tip of the hydraulic cylinder 21d is pivotally supported by a slide member 22 guided so as to be movable up and down with respect to the backrest base 21.

  One end of a wire 21e is attached to both ends of the lower horizontal member 21a. A pulley 22a around which the wire 21e is wound is rotatably attached to the intermediate slide member 22, and the tip of the wire 21e wound around the pulley 22a is connected to a fixing bracket 22b. The fixing bracket 22b is attached to the lower horizontal member 23a of the backrest mounting base 23 to which the backrest 14 is attached.

  In the backrest raising / lowering mechanism 2 configured in this manner, the slide member 22 moves up and down when oil is supplied to or discharged from the hydraulic cylinder 21d. A backrest mounting base 23 that is mounted so as to be movable in the vertical direction with respect to the wobbling base 21 moves up and down. As the backrest mounting base 23 moves up and down via the slide member 22, the pulley 22a, and the wire 21e, the amount of movement of the backrest mounting base 23 becomes larger than the protrusion and contraction amount of the ram of the hydraulic cylinder 21d.

  A first link 22c is pivotally supported on the slide member 22, and a second link 22d is pivotally supported at the tip of the first link 22c. The tip of the second link 22d is the backrest base. 21 is connected to the rotating shaft of a potentiometer (not shown) attached to the back surface side of the substrate 21 f protruding in the lateral direction from the substrate 21. Therefore, the amount of vertical movement of the backrest mounting base 23 can be detected by changing the resistance value of the potentiometer via the first and second links 22c and 22d by the vertical movement of the slide member 22.

  Although the potentiometer is used as the means for detecting the expansion / contraction of the backrest 14 as described above, it may be detected using a sensor such as an optical sensor. In addition, the height of the chair and the inclination angle of the backrest are detected in the same manner.

  The upper horizontal member 23b of the backrest mounting base 23 has a concave shape for accommodating the headrest 14b, and sensors 23c for irradiating infrared rays toward the back of the patient are attached to both sides of the concave portion. Yes.

  As shown in the figure, the sensor 23c emits infrared rays toward the back of the patient through the gap between the backrest 14 and the headrest 14b. Note that the sensor 23c may be any sensor that can detect the distance and position by picking up the reflected light, magnetism, and radio waves, such as an optical sensor, a magnetic sensor, and an ultrasonic sensor. In addition, the position of the sensor 23c is not limited to this position as long as it can detect the length of the spine and the round back state.

  Next, in the state where the person to be treated is seated on the chair and facing the mirror, the operation until the hair is washed after performing the treatment (for example, cutting the hair) will be described together with the block circuit diagram of FIG. 7 and the flowchart of FIG. To do.

  The block circuit diagram of FIG. 7 will be described. On the input side of the CPU, there are a detection sensor 23c for detecting the back length of the subject seated on the chair and the curvature of the back of the back, and the chair seat height. , A sensor 41 for detecting the expansion and contraction of the backrest (the aforementioned potentiometer) is connected. On the other hand, an actuator 51 for moving the chair 1 up and down, an actuator 21d for expanding and contracting the backrest, and an actuator 52 for raising and lowering the backrest are connected to the output side of the CPU. The means for moving the chair up and down, raising and lowering the backrest, and extending and retracting the backrest is not limited to a hydraulic cylinder, but includes an actuator such as an electric motor.

  The CPU is connected to a ROM that controls a hydraulic pump, an electromagnetic valve, and the like that operate the actuator, and a RAM that controls the operation by storing it as necessary.

Next, the operation of the block circuit diagram will be described with reference to the flowchart of FIG.
At the position where the person to be treated is seated on the fixed chair 1 facing the mirror, a treatment such as hair cutting is performed (step S1). The treatment is finished, and the chair 1 is released with a switch to release the rotation lock of the chair (step S2).

  Next, the chair 1 is manually or automatically rotated 180 degrees so that the back side of the seated patient is rotated to the side of the hair-washing ball installed below the mirror (step S3), and then the chair 1 (Step S4).

  Next, the practitioner selects, for example, from the switch group 12a of the armrest 12 in order to operate the sensor 23c described above for detecting the back length and the curvature of the back of the seated patient. The operation is started by operating a switch installed on the back side of the droop 14 (step S5). When the switch is operated, the backrest 14 starts to expand and contract, and the sensor 23c moves along the back of the patient (step S6).

  When the movement of the sensor 23c is started, the CPU monitors whether or not the curvature of the back of the circle has been detected by measuring the length of the back of the subject and the distance to the back at that time (step) S7). If it is determined in this monitoring that the length of the back and the curvature of the back of the circle have been detected, the expansion and contraction of the backrest 14 is stopped (step S8).

  Next, the practitioner operates a switch for starting control for moving the head of the patient so that the chair 1 is in an optimum state for receiving the neck of the hair-washing ball (step S9).

  When the switch is operated, the CPU responds to the result of detection by the sensor 23c so that the neck of the user matches the neck of the hair wash ball at the position and height of the hair wash ball stored in advance. The chair is referred to the detection results from the sensors 23c, 41, 42, and 43 so that the height of the chair 1, the undulation angle of the backrest, and the amount of expansion and contraction of the backrest are adjusted so as to obtain the optimal position stored in advance. The operations of the vertical movement actuator 51, the backrest expansion / contraction actuator 21d, and the backrest raising / lowering actuator 52 are controlled (step S10).

  While controlling the actuators 51, 21d and 52 by the CPU, it is monitored whether the value detected by the sensor 23c matches the chair height, the undulation angle of the backrest, and the amount of expansion / contraction of the backrest (step S11). ), When it is determined that they match, the operation stops at the optimum position (step S12). When the hair is washed at this stop position and the hair wash by the practitioner is completed, the switch for returning to the treatment position is operated to return to the initial state (step S13).

  The above-described hair washing balls are provided at an arbitrary height. Depending on the hairdressing salon, the hair wash ball height may be changed. Even in such a case, the user can be guided to an optimum position by storing the height of the hair-washing ball in advance.

  In addition, there is a hair washing table that can move the height of the hair washing ball and the front / rear / right / left positions. In the case of a hairdressing salon equipped with such a hair washing table, it is necessary to detect the height of the hair washing ball for each hair washing operation. In such a case, a sensor is attached to the back side of the backrest 14, the height of the hair wash ball is detected while the backrest 14 is laid down, the height result is stored in the RAM, and the height of the hair wash ball is stored. In addition to the height information, the length of the back and the curvature of the back of the circle are added, and the height of the seat, the amount of undulation of the backrest, and the amount of expansion and contraction of the backrest are controlled in an optimal position, so that the patient can take a comfortable posture. Can receive hair washing.

  In the embodiment described above, the barber / beauty chair has been described. Even in the case of a medical chair, the backrest is moved downward to facilitate auscultation, visual inspection, and percussion of the back of the subject. In this state, the lumbar support of the patient is supported by the lumbar support, so that no burden is imposed on the patient. Furthermore, when the backrest 14 is tilted to form a bed, the backrest 14 can be expanded and contracted to obtain a bed that matches the height of the person to be treated.

1 Chair 11 Seat 14 Backrest 15 Lumber Support 23c Sensor

Claims (3)

  A backrest attached to the back of the seat of the chair so as to be able to move up and down is telescopically attached, and a sensor for detecting the position of the shoulder of the patient and the back curvature of the back is attached to the backrest, and the shoulder detected by the sensor A backrest expansion / contraction control device for a hairdressing and beauty chair or a medical chair, wherein the amount of expansion / contraction of the backrest is adjusted according to the position of the back and the circular curvature of the back.   The backrest expansion / contraction control device for a barber or medical chair according to claim 1, wherein a lumbar support that abuts on the waist of the patient is attached to the front side of the contracting backrest. The shoulder position and the circular curvature of the back are detected, and the height and position of the hair wash ball are detected by a sensor different from the sensor attached to the backrest, and the neck of the patient is positioned on the neck receiver of the hair wash ball. The backrest expansion / contraction control device for a hairdressing or beauty chair or medical chair according to claim 1, wherein the height of the chair, the undulation angle of the backrest, and the amount of expansion / contraction of the backrest are adjusted.

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