JP2016016216A - Hairdressing chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hairdressing chair including a front seat part and a rear seat part, the heights of the front seat part and the rear seat part being variable according to various body types and hair styles of each seated person, the front seat part and the rear seat part being stably and smoothly liftable upward or downward.SOLUTION: A seat part 1 is structured to be divided into a front seat part 2 and a rear seat part 3, and is provided with front lift mean 20 and rear lift means 30 for respectively lifting up and down the front seat part 2 and the rear seat part 3, the rear seat part 3 having an upper stop part 38a abuttable on the front seat part 2 from above, the front seat part 2 having a lower stop part 28b abuttable on the upper stop part 38a from below. The rear seat part 3 and the front seat part 2 can be partially vertically overlapped with each other. The front lift means 20 is provided with: a front single motion cylinder 21 for lifting up the front seat part 2; and a front tension spring 22 repulsively energizing the front seat part 2 downward continuously. The rear lift means 30 is provided with: a rear single motion cylinder 31 for lifting up the rear seat part 3; and a rear tension spring 32 repulsively energizing the rear set part 3 downward continuously. The rear tension spring 32 has a tensile force set to be stronger than a tensile force of the front tension spring 22.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a barber / beauty chair.

  Conventionally, the barber chair is divided into a front seat and a rear seat, and only the rear seat is raised so that the head of a child such as an infant or child is above the upper edge of the backrest of the chair. What forms a seat part so that it may become a position is well-known.

Japanese Patent Publication No. 7-61295

  However, in order to protrude the head of an adult with a low seat height from the upper edge of the chair back, or to raise the head of an adult with long hair greatly from the upper edge of the chair back, when raising only the rear seat, There was a problem that the posture was unstable because of being narrow.

  Therefore, the present invention can change the height of the front seat and the rear seat according to seats of various physiques and hairstyles, and can move the front seat and the rear seat smoothly and stably. The purpose is to provide beauty chairs.

In order to achieve the above object, the barber / beauty chair of the present invention has a structure in which a seat part is divided into a front seat part and a rear seat part, and a front elevating means for raising and lowering the front seat part, and the rear seat part. And a rear raising / lowering means for raising and lowering, wherein the rear seat portion has an upper contact portion that can contact the front seat portion from above, and the front seat portion can contact the upper contact portion from below. The rear seat part and the front seat part can be partially stacked vertically with the upper and lower contact parts, and the front elevating means raises the front seat part. A front single-acting cylinder, and a front tension spring that constantly urges and urges the front seat portion downward, and the rear elevating means includes a rear single-acting cylinder for raising the rear seat portion; A rear tension spring that constantly urges and urges the rear seat portion downward, and the tensile force of the rear tension spring is One in which you set stronger than the tensile force of the spring tension for the front above.
Further, the rear single acting cylinder and the rear tension spring are unevenly distributed on the left and right sides in a plan view, and the rear tension spring is arranged on the outer side of the rear single acting cylinder. It is set.
Further, the front single acting cylinder and the front tension spring are unevenly distributed in front of the mounting plate of the front seat portion in plan view, and the front tension spring is more than the front single acting cylinder. Are arranged in the front.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to change the height of a front seat part and a rear seat part according to the seat person of various physiques and hairstyles, a front seat part and a rear seat part can be raised / lowered smoothly and stably. The front seat portion and the rear seat portion can be raised and lowered integrally, and the wide seat portion can be raised and lowered smoothly and stably. The seat can be changed easily and quickly to suit people of various physiques and hairstyles.

1 shows an embodiment of a barber / beauty chair according to the present invention and is a left side view of a reference state of a front seat portion and a rear seat portion. It is a right view of the reference state of a front seat part and a rear seat part. It is a principal part top view. It is AA principal part sectional drawing of FIG. It is a left view of the rising state of a front seat part and a rear seat part. It is a left view of a back seat part raising state.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
As shown in FIGS. 1 and 2, a barber / beauty chair according to the present invention includes a chair body 7 having a seat portion 1, a backrest portion 5, and a step portion 6, and a base that supports the chair body 7 so as to be movable up and down. The base part 8 is provided.

  The seat portion 1 is divided into a front seat portion 2 and a rear seat portion 3, and a front elevating means 20 for elevating the front seat portion 2 and a rear elevating means 30 for elevating the rear seat portion 3 are provided. Provided.

The front seat portion 2 includes a front seat portion (front cushion portion) 29 that forms a seating surface, and a mounting plate 28 (hereinafter also referred to as a front mounting plate 28) to which the front seat portion 29 is fixed to the upper surface side, It has.
A lower abutting portion 28b that can contact the rear seat portion 3 from below is formed by a part (or all) of the rear edge portion of the front mounting plate 28.

The rear seat portion 3 may be referred to as a rear seat portion (rear cushion portion) 39 that forms a seat surface, and a mounting plate 38 (hereinafter referred to as a rear mounting plate 38) to which the rear seat portion 39 is fixed to the upper surface side And.
An upper contact portion 38a that can be brought into contact with the lower contact portion 28b of the front seat portion 2 from above is formed by a front edge portion (a part or all of the front edge portion) of the rear mounting plate 38.

  The front seat portion 2 and the rear seat portion are arranged so as to wrap the bottom contact portion 28b of the front seat portion 2 and the upper contact portion 38a of the rear seat portion 3 in a plan view at the front and rear intermediate positions of the seat portion 1. 3 can be partially stacked vertically (changeable to a vertically stacked state and a vertically separated state in a side view).

  The front elevating means 20 includes a hydraulic single-acting cylinder 21 for raising the front seat 2 (hereinafter also referred to as the front cylinder 21) and a coil spring that constantly urges the front seat 2 downward. And a front tension spring 22 (hereinafter also referred to as a front spring 22), and the front seat portion 2 is moved up and down by vertical linear motion.

The rear raising / lowering means 30 is a hydraulic single acting cylinder 31 for raising the rear seat 3 (hereinafter also referred to as the rear cylinder 31), and the rear seat 3 is always elastically biased downward. And a rear tension spring 32 (hereinafter also referred to as a rear spring 32) made up of a coil spring.
Further, the tensile force of the rear spring 32 is set stronger than the tensile force of the front spring 22.

Further, the front cylinder 21 and the rear cylinder 31 have the same performance (the same standard, the nominal pressure, the cylinder inner diameter, the extension speed and the pressing force when the load on the rods 21a and 31a is the same, Are the same).
Although not shown in the drawings, the hydraulic circuit for operating the front cylinder 21 and the rear cylinder 31 has a hydraulic fluid pressure and a flow rate per hour when supplying the hydraulic oil to both the front and rear cylinders 21 and 31. Are set to be the same. Further, hydraulic oil is supplied only to the front cylinder 21 or only to the rear cylinder 31 so that the extended state can be maintained.

The upper part of the rod 21a of the front cylinder 21 (hereinafter sometimes referred to as the front rod 21a) is attached to the front mounting plate 28.
The front spring 22 has an upper end attached to the front mounting plate 28, and a lower end protruding forward from a lower end of a cylinder tube 21b of the front cylinder 21 (hereinafter also referred to as the front tube 21b). It is attached to the protruding part 21g.

The upper part of the rod 31a of the rear cylinder 31 (hereinafter sometimes referred to as the rear rod 31a) is attached to the rear mounting plate 38.
The rear spring 32 has an upper end portion attached to the rear mounting plate 38, and a lower end portion that is laterally outward (one on the left and right sides) from the lower end portion of a cylinder tube 31b of the rear cylinder 31 (hereinafter also referred to as the rear tube 31b). It is attached to the side protrusion 31g that protrudes to the side).

3, the front cylinder 21 and the front spring 22 are unevenly distributed in front of the front mounting plate 28, and the front spring 22 is disposed in front of the front cylinder 21 as viewed in a plan view. doing.
Further, the front cylinder 21 and the front spring 22 are aligned in the left-right direction.
Further, the rear cylinder 31 and the rear spring 32 are unevenly distributed on one of the left and right sides of the rear mounting plate 38, and the rear spring 32 is disposed on the outer side (on the left and right sides) of the rear cylinder 31.
Further, the rear cylinder 31 and the rear spring 32 have the same position in the front-rear direction.

Here, as shown in FIG. 1 and FIG. 2, the base unit 8 includes a floor installation board 81, a main cylinder 82 that is erected on the floor installation board 81 and raises and lowers the chair body 7. It has.
The chair body 7 includes a plate-like lifting base member 70 to which the upper portion of the rod 82a of the main cylinder 82 is attached.

An upper part of the front tube 21b and an upper part of the rear tube 31b are fixed to the elevating base member 70 and suspended.
The elevating base member 70 is provided with a front seat portion 2 and a rear seat portion 3 on the upper surface side, a backrest portion 5 is pivotally attached to the rear portion so as to be swingable around a horizontal axis, and a step portion 6 is attached to the front portion. I wear it.

Moreover, the front guide part for raising / lowering the front seat part 2 up and down linearly is provided.
The front guide means includes a round bar-shaped front guide rod 27 suspended from the front mounting plate 28, and a front guide rod 27 penetrating the elevating base member 70 and allowing the front guide rod 27 to be inserted (while sliding). And a guide hole. The front guide rod 27 is unevenly distributed in front of the front mounting plate 28 (see FIG. 3).

Moreover, the rear guide means for raising / lowering the back seat part 3 to an up-down linear form is provided.
The rear guide means includes a round rear bar guide rod 37 suspended from the rear mounting plate 38, and a rear guide rod 37 penetrating the lifting base member 70 and allowing the rear guide rod 37 to be inserted therethrough (in sliding contact). And a guide hole. The rear guide rod 37 is unevenly distributed on the left or right side of the rear mounting plate 38 (see FIG. 3).

The chair body 7 is provided so as to be rotatable around the vertical axis La of the main cylinder 82.
A cylinder tube 82b of the main cylinder 82 (hereinafter sometimes referred to as a main tube 82b) is fixed to the floor installation board 81, and the rod 82a of the main cylinder 82 is freely rotatable around the vertical axis La, or the main cylinder A sliding contact member such as a thrust bearing is interposed between the rod 82a of 82 and the elevating base member 70 so as to be rotatable about the vertical axis La.

A lock means (brake means) 80 is provided for preventing the chair body 7 from rotating about the vertical axis La.
As shown in FIG. 4, the lock means 80 is attached to the main tube 82b so as to be rotatable around the vertical axis La and supports the lower portion of the front cylinder 21 so as to be slidable up and down, and the support member 83. The hydraulic single-acting brake cylinder 84 that is fixed to the horizontal and the rod 84a expands and contracts horizontally, the brake fitting 85 having a C-shaped portion 85c for gripping the main tube 82b in an outer fitting shape, and a support member 83 And a stopper member 86 for preventing rotation of the brake fitting 85.
In FIG. 4, the front spring 22, the rear spring 32, and the rear cylinder 31 are not shown.

  The brake fitting 85 includes a C-shaped portion 85c, a pressure receiving portion 85a protruding in a radial direction from one end portion that forms a cut in the C-shaped portion 85c, and a second end portion that forms a cut in the C-shaped portion 85c. A non-rotating portion 85b that protrudes in the radial direction and abuts against the stopper member 86, and is elastically deformed in a direction in which the cut of the C-shaped portion 85c is closed, so that the inner peripheral surface 85d of the C-shaped portion 85c is the main tube. It is configured to exert a braking force by being pressed against the outer peripheral surface 82d of 82b.

The support member 83 includes a notch 83e cut out from the front edge and a pair of left and right cylinder holding fittings 83f and 83f provided in the vicinity of the notch 83e. The rear half is arranged in the notch 83e, and the front tube 21b is slidable up and down by the cylinder holding fittings 83f and 83f to prevent the front tube 21b from tilting forward and to the left and right. This prevents the chair body 7 from wobbling.
That is, the front tube 21b is used in combination as a reinforcing member for preventing the chair body 7 from wobbling (swinging).

When the rod 84a of the brake cylinder 84 presses the pressure receiving portion 85a, the locking (brake) means 80 prevents the rotation preventing portion 85b from coming into contact with the stopper member 86 and is prevented from rotating around the vertical axis La. The C-shaped portion 85c is elastically deformed so that the cut of the C-shaped portion 85c is closed by the pressing force of the C-shaped portion. Since the support member 83 to which the cylinder tube 84b of the 84 is fixed cannot rotate around the vertical axis La, the revolving motion around the vertical axis La of the front cylinder 21 is prevented, and the chair body 7 Is configured to prevent rotation around the vertical axis La.
That is, the front tube 21b is used together as a rotation stop member of the chair body 7.
Further, when the brake cylinder 84 can be shortened by switching the electromagnetic valve D, the break of the C-shaped portion 85c is opened by the elastic restoring force of the C-shaped portion 85c of the brake fitting 85, so that the brake is released. It is configured.

As shown in FIGS. 1 and 2, on the lower surface side of the elevating base member 70, a hydraulic motor M, a hydraulic tank T, an electromagnetic valve D for a hydraulic circuit, an unillustrated hydraulic pipe, and electrical wiring Etc. are attached. Note that the solenoid valve D is not shown in FIGS. 1, 5, and 6.
Compared to the case where the hydraulic motor M, the hydraulic tank T, and the solenoid valve D are provided inside the floor installation panel 81, the installation panel 81 can be made compact, such as a hairdresser or barber who performs haircut or hair dyeing. The practitioner's feet become wider.

Next, the usage method (action) of the barber / beauty chair of the present invention will be described.
As shown in FIG. 1, from the reference state in which the front seat 2 and the rear seat 3 are in the lowered position (low position), as shown in FIG. In the case where both the front seat portion 2 and the rear seat portion 3 are raised so that the head of the seated person protrudes more greatly, hydraulic oil is supplied to the front cylinder 21 and the rear cylinder 31 to extend. Then, the tensile force of the rear spring 32 is stronger than the tensile force of the front spring 22, and the load of the seated person is greatly applied to the rear seat portion 3, so that the load related to the rear cylinder 32 is larger than that of the front cylinder 21 and the front seat portion. The rear seat 3 does not rise faster than 2. Further, the lower contact portion 28 b of the front seat portion 2 abuts on the upper contact portion 38 a of the rear seat portion 3, thereby preventing the front seat portion 2 from rising faster than the rear seat portion 3. Therefore, the front seat part 2 and the rear seat part 3 rise integrally (together), and a seated person rises stably with the wide seating surface of both the front seat part 2 and the rear seat part 3. Moreover, even if there is no seated person, the pulling force of the rear spring 32 is stronger than the pulling force of the front spring 22, so that the front seat portion 2 and the rear seat portion 3 rise integrally.

Further, when the front seat portion 2 and the rear seat portion 3 of FIG. 5 are lowered, the solenoid valve D is switched so that the hydraulic oil in the front cylinder 21 and the rear cylinder 31 returns to the hydraulic tank T.
Then, the tensile force of the rear spring 32 is stronger than the tensile force of the front spring 22, and the load of the seated person is also greatly applied to the rear seat portion 3, so that the load on the rear cylinder 31 is larger than that of the front cylinder 21, and the front seat portion 2, the rear seat part 3 tends to descend faster than the rear seat part 3, but the rear seat part 3 comes into contact with the lower seat part 28 b of the front seat part 2 so that the rear seat part 3 is faster than the front seat part 2. Prevent descent. Therefore, the front seat portion 2 and the rear seat portion 3 are lowered integrally (together), and the seated person is stably lowered with the wide seating surfaces of both the front seat portion 2 and the rear seat portion 3. Moreover, even if there is no seated person, the pulling force of the rear spring 32 is stronger than the pulling force of the front spring 22, so the front seat portion 2 and the rear seat portion 3 are lowered integrally.
As described above, the height position of the front seat portion 2 and the rear seat portion 3 can be stably changed with respect to the upper edge portion 5a of the backrest portion 5, and is suitable for seating adults of various seat heights and hairstyles. The height of the part 1 can be changed.

  Further, when lowering, since a downward force from the rear seat portion 3 acts on the rear portion of the front mounting plate 28, the front mounting plate 28 is inclined downward so that it slightly bows backward. However, since the front spring 22 is provided in front of the front cylinder 21 and pulled downward, the front mounting plate 28 can be held horizontally and the seated person can be lowered stably. In other words, if the front spring 22 is not provided, the front mounting plate 28 is inclined rearwardly, and there is a possibility that the front rod 21a may be kneaded and cannot be lowered smoothly.

Further, since the rear cylinder 31 is unevenly distributed to the left and right sides, the rear mounting plate 38 tends to be inclined downward on the other side when raising and lowering. Since it is provided on the side and pulled downward, the rear mounting plate 38 can be held horizontally, and the seated person can be lowered stably.
Further, the large main cylinder 82 can be arranged near the front and rear, left and right centers (center of gravity) of the chair body 7.
In addition, the length of the front spring 22 and the rear spring 32 can be made sufficiently long and the outer diameter of the spring can be increased, exhibiting a sufficient tensile force, and reducing variations in tensile force due to changes in the expansion / contraction length, Stable and smooth lifting can be achieved.

In the case of a child such as an infant or a child, hydraulic oil is supplied only to the rear cylinder 31 from the reference state (see FIG. 1). As shown in FIG. 6, the upper contact portion 38 a and the lower contact portion 28 b are separated (upper and lower overlaps are released), and only the rear seat portion 3 is raised and held. The front seat part 2 serves as a footrest for a child, and the child's foot does not fluctuate and the posture is stabilized.
Although not shown in the drawings, after the rear seat 3 is stopped at a desired position, hydraulic oil is supplied to the front cylinder 21 to raise the front seat 2 and the front seat 2 may be used as a child footrest. .
Thus, if the back seat part 3 is raised, the front seat part 2 can be raised and lowered freely.

  In the present invention, the design can be changed, and the shapes of the front seat portion 29 and the rear seat portion 39 are arbitrary. The hydraulic motor M, the hydraulic tank T, and the electromagnetic valve D may be provided inside the floor surface installation panel 81.

  As described above, the barber / beauty chair of the present invention has the seat portion 1 divided into the front seat portion 2 and the rear seat portion 3, the front elevating means 20 for raising and lowering the front seat portion 2, and the rear seat portion 3. And a rear elevating means 30 for elevating and lowering the rear seat part 3. The rear seat part 3 has an upper contact part 38a that can contact the front seat part 2 from above, and the front seat part 2 is provided on the upper contact part 38a from below. It has a lower contact portion 28b that can be contacted, and the upper seat portion 38a and the lower contact portion 28b allow the rear seat portion 3 and the front seat portion 2 to be partially stacked vertically. A front single-acting cylinder 21 for raising the front seat and a front tension spring 22 for constantly elastically biasing the front seat portion 2 downward, and a rear lifting means 30 for raising the rear seat portion 3 A rear single-action cylinder 31 and a rear tension spring 32 that constantly and downwardly urges the rear seat 3 downwardly. The tension of the rear tension spring 32 is the same as the tension of the front tension spring 22. The height of the front seat part 2 and the rear seat part 3 can be changed according to seats of various physiques and hairstyles, and the front seat part 2 and the rear seat part 3 can be raised and lowered smoothly and stably. be able to. The front seat portion 2 and the rear seat portion 3 can be raised and lowered integrally, and the wide seat portion 1 can be raised and lowered smoothly and stably. The seat portion 1 can be easily and quickly changed according to people of various physiques and hairstyles. It is possible to reliably prevent the front seat portion 2 from rising over the rear seat portion 3.

  In addition, the rear single acting cylinder 31 and the rear tension spring 32 are unevenly distributed on the left and right sides in a plan view, and the rear tension spring 32 is arranged on the outer side of the rear single acting cylinder 31. Since it is provided, the rear seat portion 3 can be held in an appropriate posture (the rear mounting plate 38 is horizontal), and the rear rod 31a can be raised and lowered smoothly and stably without causing any kneading. The rear spring 32 can be made sufficiently long and the outer diameter of the spring can be increased, so that a sufficient tensile force can be exhibited, and variations in the tensile force due to changes in the expansion / contraction length can be reduced. Further, the large main cylinder 82 can be arranged near the front and rear, left and right centers (center of gravity) of the chair body 7.

  Further, the front single acting cylinder 21 and the front tension spring 22 are unevenly distributed in front of the mounting plate 28 of the front seat portion 2 in a plan view, and the front tension spring 21 is ahead of the front single acting cylinder 21. Since 22 is arranged in the front, the front seat 2 can be held in an appropriate posture (the front mounting plate 28 is horizontal), and the front rod 21a can be lifted smoothly and stably without causing a kneading. Can do. The front spring 22 can be made sufficiently long and the outer diameter of the spring can be increased, so that a sufficient tensile force can be exhibited and variations in the tensile force due to changes in the expansion / contraction length can be reduced. Further, the large main cylinder 82 can be arranged near the front and rear, left and right centers (center of gravity) of the chair body 7.

1 Seat 2 Front Seat 3 Rear Seat
20 Forward lifting means
21 Front single acting cylinder
22 Front tension spring
28 Mounting plate
28b Bottom contact
30 Rear lifting means
31 Rear single acting cylinder
32 Rear tension spring
38a Top end

Claims (3)

The seat portion (1) is divided into a front seat portion (2) and a rear seat portion (3), and a front elevating means (20) for raising and lowering the front seat portion (2), and the rear seat portion (3 And a rear elevating means (30) for elevating and lowering)
The rear seat portion (3) has an upper contact portion (38a) that can contact the front seat portion (2) from above,
The front seat part (2) has a lower contact part (28b) that can contact the upper contact part (38a) from below,
The rear seat (3) and the front seat (2) can be partially stacked vertically with the upper contact portion (38a) and the lower contact portion (28b),
The front elevating means (20) includes a front single acting cylinder (21) for raising the front seat portion (2), and a front tension spring for constantly elastically biasing the front seat portion (2) downward ( 22)
The rear elevating means (30) includes a rear single acting cylinder (31) for raising the rear seat (3) and a rear tension for constantly elastically biasing the rear seat (3) downward. A spring (32),
A barber / beauty chair characterized in that the tension of the rear tension spring (32) is set stronger than the tension of the front tension spring (22).   The rear single acting cylinder (31) and the rear tension spring (32) are unevenly distributed on the left and right sides in a plan view, and the rear tension is greater than that of the rear single acting cylinder (31). The hairdressing and beauty chair according to claim 1, wherein the spring (32) is disposed laterally outward.   The front single acting cylinder (21) and the front tension spring (22) are unevenly distributed in front of the mounting plate (28) of the front seat portion (2) in plan view, and the front The hairdressing and beauty chair according to claim 1 or 2, wherein the front tension spring (22) is disposed in front of the single acting cylinder (21).

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