JP2009268711A - Hairdressing chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the operability on a backrest part and a leg rest part in a hairdressing chair. <P>SOLUTION: This hairdressing chair includes: a changeover operation part 60 capable of changing over among three steps, a first pattern where the backrest part 5 alone is reclined, a second pattern where the leg rest part 6 is upward swung slightly in addition to the reclining operation of the backrest part 5, and a third pattern where the leg rest part 6 is upward swung largely in addition to the reclining operation of the backrest part 5; and a reclining mechanism 3 allowing the backrest part 5 and the leg rest part 6 to execute a predetermined operation according to the operation pattern selected by the changeover operation part 60. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a barber / beauty chair.

Many barber and beauty chairs used in barbers and beauty salons have a function of reclining a backrest provided at the back of a seat. In addition, there is an apparatus that is linked to such a reclining operation of the backrest portion so that the front hanging portion provided at the front portion of the seat portion is also swung upward. This front hanging part should be used so that the seated part can be swung upward when the back part is turned down for washing the hair, and the legs of the seated person are lifted to maintain comfort. It is common.
For reclining the backrest, a linear actuator that employs a motor-driven feed screw mechanism may be used as its drive source (see Patent Document 1 and Patent Document 2). The linear actuator is provided with a limit switch, which detects a stroke (axis movement amount) necessary for a predetermined operation.

On the other hand, the armrest part on the side of the seat part is provided with a seating position operation part in which a plurality of switches for adjusting the seating position are gathered on the outer side surface, etc. A switch for adjusting the height and the like of the seat is included (see, for example, Patent Document 3). Considering ease of discrimination at first glance, the arrangement of various switches was laid out in a chair shape so as to correspond to their functional positions.
JP-A-10-318345 JP 2004-36658 A JP 2001-137063 A

By the way, when this kind of barber / beauty chair is installed, there are a case where it is allowed to swing the front hanging part up and down due to space, and a case where this is not necessarily the case. For example, in the case where a mirror is installed in front of the barber / beauty chair, the legs of the seated person or the front drooping part itself may interfere with the barber's work by swinging the front drooping part upward. In some cases, it may collide with a mirror.
Every time the backrest is reclined, the beautician etc. operates the switch to select whether or not to swing the front hanging part up and down and to select the swing range (swing angle) when swinging up and down. This is not realistic in terms of both labor and certainty.

However, regarding the ups and downs of the front drooping part, it is conceivable to employ a structure in which the stroke of the linear actuator is detected by a limit switch as in Patent Document 1 and Patent Document 2, but a large number of limit switches are required. There was a problem of complicated control.
On the other hand, regarding the switch operation at the seating position operation unit, there is a situation in which the “seat height adjustment switch” is frequently operated in general use. Nevertheless, this switch is placed in a chair-type arrangement with other switches, so that the operator (such as a barber) can select the desired switch during other work. It was difficult to find out.

Therefore, in order to obtain the certainty of the switch operation, it is necessary to visually check the arrangement of each switch, and there is a trouble that it is troublesome, and there are troubles that operation mistakes frequently occur by an operator who omits this trouble. .
This invention is made | formed in view of the said situation, Comprising: It aims at providing the barber / beauty chair from which the operativity of the operation | movement selection regarding a backrest part or a front drooping part, and the operativity of a seat part raising / lowering become favorable.

In order to achieve the above object, the present invention has taken the following measures.
That is, the barber / beauty chair according to the present invention is a barber / beauty chair having a seat, a backrest provided at the rear part of the seat, and a front hanging part provided at the front part of the seat, only the backrest. In addition to the reclining operation of the backrest portion, the second pattern in which the front suspension portion swings upward in a small width, and in addition to the reclining operation of the backrest portion, the front suspension portion significantly swings upward. A switching operation unit that allows switching between at least two operation patterns with the moving third pattern, and a reclining mechanism that causes the backrest unit and the front hanging unit to perform operations according to the operation pattern selected by the switching operation unit It is characterized by having.

Preferably, the reclining mechanism includes a sliding member that moves back and forth to perform a reclining operation of the backrest portion, pushes the front hanging portion forward in conjunction with the sliding member, and the amount of push-out is a plurality of steps by the switching operation portion. It is preferable that the joint portion between the linear actuator and the front hanging portion is a contact mechanism.
More preferably, a side part of the seat part is provided with a seating position operation part comprising a plurality of switches for adjusting the seating position, and the seat part is located at the rearmost position among the seating position operation parts. A height adjustment switch may be arranged.

In addition, as the barber / beauty chair according to the present invention, in the barber / beauty chair having a seat portion, a backrest portion provided at the rear portion of the seat portion, and a front hanging portion provided at the front portion of the seat portion, the seat portion A seating position operation unit comprising a plurality of switches for adjusting the seating position is provided on the side of the seating position, and the seat height adjustment switch is disposed at the rearmost position in the seating position operation unit. Those having only the configuration described above are also included.
Preferably, a foot switch for operating a reclining mechanism is provided on a side of the pedestal that supports the seat, and the seating position operation unit is a side on which the foot switch is provided, and a seat It is good to be provided ahead of the front-rear direction center position of the part.

  More preferably, the linear actuator includes an outer cylinder, an inner cylinder inserted into the outer cylinder, and a support that supports the outer cylinder slidably in the axial direction. A protrusion projecting radially inward is formed on the inner peripheral surface of the outer cylinder, and the protrusion is slidably guided along the longitudinal direction on the outer peripheral surface of the inner cylinder. A guide groove is formed, and when one of the inner cylinder body and the outer cylinder body is pushed into the support body, the protrusion portion engages with a groove end of the guide groove, thereby Either the cylindrical body or the outer cylindrical body can protrude from the support body, and a plurality of guide grooves having different longitudinal arrangements at the end of the groove are provided along the circumferential direction of the outer peripheral surface of the inner cylindrical body. The switching operation unit is configured to relatively rotate the inner cylinder or the outer cylinder of the linear actuator around an axis. And selecting a combination of the protrusions and the plurality of guide grooves in Rukoto, it may have a structure that is a changeable amount of projection of the outer cylindrical member or the inner tubular member.

  In the hairdressing and beauty chair according to the present invention, the operability of the operation selection relating to the backrest part and the front hanging part and the operability of raising and lowering the seat part are good.

1 to 10 show an embodiment of a barber / beauty chair according to the present invention. This barber / beauty chair 1 has a seat portion 4, a backrest portion 5 provided at the rear portion of the seat portion 4, and a front hanging portion 6 provided at the front portion of the seat portion 4.
In the following description, the vertical direction of FIG. 1 is the vertical direction of the barber / beauty chair 1, the F direction of FIG. 1 is the front and the B direction, the R direction of FIG. 1 is the right direction, and the L direction is the left direction. And Each of these directions corresponds to the direction seen from the seated person sitting on the barber / beauty chair 1.
The seat 4 is supported at a predetermined height via a leg 7 having a base 7a and a base 7b, and armrests 2L, 2R are provided on the left and right sides of the seat 4. A chair lifting / lowering device 50 composed of an electric motor, a trapezoidal screw mechanism, and the like is provided inside the leg 7 according to the height of a seated person, a hairdresser, or the work content (cutting hair or shampooing). The height of the seat 4 can be adjusted arbitrarily.

As shown in FIGS. 2 to 4, the backrest portion 5 is connected to be pivotable about a pivotal support portion 8 provided on the rear end side of the seat portion 4, and the front hanging portion 6 is connected to the front end side of the seat portion 4. It is connected so as to be swingable around a rotation part 9 provided in the center.
The hairdressing and beauty chair 1 includes a reclining mechanism 3 that performs a reclining operation between a backrest portion 5 in an upright state (normal posture) and a state in which the backrest portion 5 is tilted backward. This reclining mechanism 3 can be linked to the backrest part 5 to swing the front hanging part 6 up and down. In addition, when the backrest part 5 is in the standing state, the front hanging part 6 hangs in a substantially vertical direction on the front end side of the seat part 4.

The reclining mechanism 3 can switch the operation pattern of the front drooping portion 6 in a plurality of stages by operating a switching operation portion 60 described later.
A seating position operation part 51 is provided on the side part of the seat part 4 (the outer surface of the left armrest part 2L). The seat position operation unit 51 is provided with a plurality of switches 52 and 53 for adjusting the seat position, and a seat part height adjustment switch 52 for adjusting the height of the seat part 4 therein. It is included.
The height adjustment switch 52 is, for example, a momentary switch, and can operate the above-described chair lifting device 50 to raise or lower the seat portion 4. The amount of operation of the chair lifting device 50 (the amount by which the seat 4 is raised or lowered) is proportional to the time during which the seat height adjustment switch 52 is operated, so that the height of the seat 4 can be arbitrarily set. Can be set.

The seating position operation unit 51 is also provided with a front sag switch 53 and a service outlet 54 that swing the front sag 6 up and down.
The seating position operation unit 51 is provided in an arrangement that is in front of the center position of the seat part 4 in the front-rear direction. A seat height adjustment switch 52 is disposed at the rearmost position in the seating position operation unit 51. That is, from the front side, the service outlet 54, the front hanging part switch 53, and the seat height adjustment switch 52 are arranged in this order.
The arrangement of the seating position operation unit 51 and the arrangement of the seat height adjustment switch 52 in the seating position operation unit 51 are based on the position of a foot switch 55 described later for operating the reclining mechanism 3. It has been decided.

That is, a hairdresser or the like who operates the foot switch 55 can operate the seat height adjustment switch 52 most easily and quickly.
The reclining mechanism 3 reclines the backrest part 5 backward substantially horizontally, whereas the swinging angle of the front drooping part 6 does not move the front drooping part 6 while keeping it substantially vertical as shown in FIG. A first pattern for reclining only 5, a second pattern for swinging the front drooping portion 6 upward as shown in FIG. 3 until it faces diagonally forward, and a front drooping portion 6 as shown in FIG. 4. Can be switched in three stages: a third pattern that swings upward substantially to a level.

A foot switch 55 for operating the reclining mechanism 3 is provided on the base 7a of the leg 7 described above. The foot switch 55 is provided with an up switch 55a and a down switch 55b.
When the beautician depresses the down switch 55b with his / her foot, the seat 4 rises, and then the reclining mechanism 3 changes the inclination angles of the backrest 5 and the front sag 6. The state of the backrest part 5 and the front drooping part 6 is any one of the first pattern to the third pattern selected by the switching operation part 60.

The rising height of the seat surface 4 can be changed to a plurality by a position detection sensor (not shown) provided in the chair lifting device 50. That is, the seating surface height can be changed in a plurality of stages. Therefore, it is possible to use the hairdressing and beauty chair 1 in a beauty salon having various specifications.
When the beautician depresses the up switch 55a, the backrest 5 is brought into an upright state, and the front drooping portion 6 is in a suspended state. Thereafter, the seat 4 is lowered.
In addition, you may be comprised so that the vertical motion of the seat part 4 and the operation | movement of the backrest part 5 and the front drooping part 6 may be performed simultaneously.

As shown in FIGS. 5 and 6, the reclining mechanism 3 is provided on the bottom surface side of the seat portion 4, and includes an electric motor 10 and a pair of left and right rotating shafts 11 </ b> L and 11 </ b> R whose axial centers are directed in the front-rear direction. A sliding member 12 and a linear actuator 13 are provided.
The electric motor 10 is a double-axis motor, and the left and right rotating shafts 11L and 11R can be driven to rotate in opposite directions through the left and right gear boxes 14L and 14R. The rotary shafts 11L and 11R are formed as feed screws 15L and 15R having a reverse screw relationship with each other, and nut members 16L and 16R screwed to these are fixed to the sliding member 12.

Accordingly, the rotation shafts 11L and 11R rotate in the reverse direction due to the rotation of the electric motor 10, so that the nut members 16L and 16R obtain forward or reverse driving force, and the sliding member 12 moves in the front-rear direction. It has become. The sliding member 12 is guided by a plurality of guide bars 17 and is held slidable back and forth.
The rear end of the linear actuator 13 is connected to the sliding member 12, and the sliding movement of the sliding member 12 can cause the linear actuator 13 to push forward and retract backward. .

A cap body 18 is provided at the front end of the linear actuator 13, and the connection rod 19 of the front hanging portion 6 is in contact with the cap body 18. This contact is maintained in a non-connected state (that is, only contacted but not connected).
Plate-like standing members 20L and 20R are attached to the left and right sides of the sliding member 12, respectively. These upright members 20L and 20R are formed with long holes 21 that are inclined upwardly toward the rear, and the lower slider 5a provided in the backrest 5 is engaged with the long holes 21 so as to be movable in the holes. Has been. Therefore, when the upright members 20L and 20R move back and forth together with the sliding member 12, the lower slider 5a of the backrest portion 5 moves in the long hole 21, and at this time, the cam action is generated and the backrest portion 5 is pivoted. 8 swings around.

As described above, the connecting rod 19 of the front hanging portion 6 is merely in contact with the front end (cap body 18) of the linear actuator 13 while remaining in an unconnected state. Specifically, a universal roller 45 using a cam follower is attached to the rear end of the connecting rod 19, and the universal roller 45 is in contact with the front surface of the cap body 18. A roller receiving surface 46 is formed on the front surface of the cap body 18 to guide the free roller 45 from rolling up and down in accordance with the swing angle of the front hanging portion 6.
The front hanging part 6 is pulled by an urging member 61 such as a spring having one end attached to the seat part 4 side, and a load that constantly swings downward is generated. When the retracting operation is performed backward, the self-load of the front hanging portion 6 is concentrated on the free roller 45 so that the downward swing of the front hanging portion 6 follows the pulling operation of the linear actuator 13.

Therefore, in the unlikely event that an external force or resistance that hinders downward swinging of the front hanging portion 6 occurs, the roller receiving surface 46 of the cap body 18 and the free roller 45 of the connecting rod 19 are separated from each other, and the front hanging portion 6 Stops swinging downward.
That is, the front hanging portion 6 is not forced to swing downward by the pulling operation of the linear actuator 13, but stops its operation (downward swing) when an external force or resistance that hinders downward swing is generated. Will do.
Naturally, if an external force (lifting force) is applied to swing the front drooping portion 6 upward, the front drooping portion 6 exceeds the contact position with the linear actuator 13 regardless of the operating state of the linear actuator 13. Thus, the rocking forward (upward) can be performed freely.

As shown in FIGS. 5 (a) and 6 (a), when the backrest 5 is in an upright state, the sliding member 12 is stopped at the rear position of the longitudinal movement stroke, and the linear actuator 13 has a non-front end. It is in a protruding state. The sliding member 12 moves forward by the forward rotation of the electric motor 10.
As shown in FIG. 5B and FIG. 6B, the lower slider 5a of the backrest part 5 moves in the long holes 21 of the upright members 20L and 20R as the sliding member 12 advances, and the backrest part 5 It comes to fall backward centering on the pivot 8.
Further, when the rear end of the linear actuator 13 is pushed forward by the advancement of the sliding member 12 and the front end projects forward accordingly, the connecting rod 19 of the front hanging portion 6 is pushed forward via the cap body 18. The front drooping portion 6 swings upward about the rotating portion 9.

On the contrary, since the sliding member 12 moves backward by the reverse rotation of the electric motor 10, the lower slider of the backrest portion 5 moves in the long holes 21 of the upright members 20L and 20R, and the backrest portion 5 is pivotally supported by the pivot portion 8. Get up and return to the standing position.
Further, when the sliding member 12 moves backward, the rear end of the linear actuator 13 is pulled backward, and when the front end is moved backward, the connecting rod 19 of the front hanging portion 6 is pulled backward via the cap body 18. The front hanging portion 6 swings downward about the rotating portion 9. Finally, the front drooping portion 6 returns to the drooping state.

As shown in FIG. 7, the linear actuator 13 includes an outer cylindrical body 22, an inner cylindrical body 23 inserted into the outer cylindrical body 22, and a support body that slidably supports the outer cylindrical body 22 in the axial direction. 24.
The support 24 is composed of a left and right pair of a left member 24L and a right member 24R, and is fixed to the seat portion 4 with bolts or the like. Each of the left member 24L and the right member 24R is formed in a shape in which a cylinder is divided in half along the longitudinal direction at the center. In the support 24, when the left member 24L and the right member 24R are connected with screws, a hole 25 is formed between the two along the front-rear direction, and the outer cylindrical body 22 can be removably inserted into the hole 25. It has become.

The outer cylindrical body 22 is formed in a long cylindrical shape in the front-rear direction, and is inserted into the hole 25 of the support body 24 so as to be movable back and forth.
The inner cylinder 23 is formed in a cylindrical shape that can be inserted into the outer cylinder 22 without rattling. The rear end side of the inner cylindrical body 23 is fixed to the sliding member 12, and the front end side is used as an entrance / exit of the outer cylindrical body 22.
The switching operation unit 60 as the reclining mechanism 3 is adopted in the structure of the linear actuator 13.

That is, the outer wall 22 is provided with a depressed portion 26 in which a portion that is a part in the longitudinal direction and a portion that is a portion in the circumferential direction is recessed, and the depressed portion 26 has a diameter on the inner circumferential surface. A protrusion 27 protruding inward in the direction is formed. A pair (that is, two) of the protrusions 27 are provided at opposite positions opposite to each other in the circumferential direction with respect to the inner peripheral surface of the outer cylindrical body 22.
On the other hand, a guide groove 28 is formed along the longitudinal direction on the outer peripheral surface of the inner cylindrical body 23 so that the protrusion 27 can be guided along the longitudinal direction. A pair of guide grooves 28 are also provided in accordance with the protrusions 27.

As shown in the development view of FIG. 7, the guide groove 28 has a plurality of first guide grooves 32 and second guide grooves 33 provided in parallel with each other. In the illustrated example, the first guide groove 32 is short and the second guide groove 33 is formed longer than that.
As described above, there are a pair of guide grooves 28, which are formed at predetermined intervals in the circumferential direction along the outer peripheral surface of the inner cylindrical body 23. For this reason, the non-grooved portion 34 is attached to the vertical position of each guide groove 28.
When the inner cylindrical body 23 is viewed from the front, the first guide groove 32 is disposed approximately 60 ° counterclockwise from the non-groove portion 34, and the second guide groove 33 is approximately 60 ° clockwise from the non-groove portion 34. The arrangement is shifted.

The first guide groove 32 and the second guide groove 33 are both open at the front end of the inner cylinder 23 so that the protrusion 27 can be smoothly guided into the groove from the front of the inner cylinder 23. . Further, in each of the first guide groove 32 and the second guide groove 33, a groove end is formed at a midway portion in the front-rear direction of the inner cylindrical body 23 (not passing through).
Since the second guide groove 33 is longer than the first guide groove 32, the groove end of the second guide groove 33 is located behind the groove end of the first guide groove 32. Therefore, the second guide groove 33 can guide the protrusion 27 to the rear from the first guide groove 32, and engages with the protrusion 27 behind the first guide groove 32.

In the non-grooved portion 34, the projection 27 is engaged at the same surface position as the front end surface of the inner cylindrical body 23, so the front end surface of the non-grooved portion 34 is the groove end of the first guide groove 32 or the second guide groove 33. It is clear that it is located further forward. That is, the non-grooved portion 34 engages with the protruding portion 27 in front of the first guide groove 32 and the second guide groove 33.
Thus, the groove end of each guide groove 32, 33 and the front end surface of the non-grooved portion 34 are both at different positions in the front-rear direction, and by rotating the inner cylinder body 23 and the outer cylinder body 22 relatively, The protrusion 27 selects one of the groove end of the first guide groove 32, the groove end of the second guide groove 33, or the front end surface of the non-grooved portion 34, and is engaged at different positions in the front-rear direction. Therefore, by the relative rotation of the inner cylinder body 23 and the outer cylinder body 22, the engagement position between the inner cylinder body 23 and the outer cylinder body 22 changes in the front-rear direction, and the protrusion of the outer cylinder body 22 with respect to the support body 24. The amount is switched to 3 levels.

That is, the protruding amount of the outer cylindrical body 22 with respect to the support 24 is maximized when the protruding portion 27 engages with the front end surface of the non-grooved portion 34, and the protruding portion 27 engages with the groove end of the second guide groove 33. Sometimes the minimum. When the protrusion 27 engages with the end of the first guide groove 32, the protrusion 27 protrudes to the middle of the maximum protrusion.
On the other hand, a through-hole 29 that passes through in the longitudinal direction is formed at the center of the inner cylinder 23. A pair of engagement grooves 30 are formed in the through-hole 29 at opposite positions in the circumferential direction from the midway side to the rear end in the front-rear direction.

The inner cylinder 23 is provided with an operating body 31 that passes through the inside of the outer cylinder 22 and rotates the inner cylinder 23 from the outside of the outer cylinder 22. The operating body 31 is provided so as to project outward in the radial direction at the rear end portion of the operating rod portion 35, the operating knob 36 provided to be rotatable integrally with the front end portion of the operating rod portion 35, and the operating rod portion 35. The locking pin 37 is provided.
The operation rod portion 35 penetrates the cap body 18 fixed to the front end of the outer cylindrical body 22 and projects forward, and the operation knob 36 is attached to a portion where the operation rod portion 35 projects from the cap body 18. Yes.

The locking pin 37 is movable along the engagement groove 30 while being engaged with the engagement groove 30 formed in the through hole 29 of the inner cylindrical body 23 in the circumferential direction.
Therefore, when the operation knob 36 is rotated in the operation body 31, the inner cylinder 23 can be rotated in the outer cylinder 22 through the circumferential engagement of the locking pin 37 and the engagement groove 30. By the rotation of the inner cylindrical body 23, the protrusion 27 selects either the guide groove 28 (the first guide groove 32 or the second guide groove 33) or the no-groove part 34.
A positioning means 38 is provided between the cap body 18 and the operation rod portion 35 to position the rotational position of the inner cylinder body 23 relative to the outer cylinder body 22. The positioning means 38 is a ball push mechanism, and includes a ball hole 39 provided on the cap body 18 side, a ball 40 and a push spring 41, and a plurality of positioning recesses 42 provided on the operation rod portion 35 side. .

By providing such positioning means 38, the inner cylinder body 23 and the outer cylinder body 22 can be relatively rotated stepwise in accordance with the number of positioning recesses 42, and the protrusion 27 can be formed in the guide groove 28. It is possible to reliably guide to either.
When the reclining mechanism 3 is operated without operating the switching operation unit 60, as shown in FIG. 8A, the inner cylinder 23 moves forward together with the sliding member 12, and the outer cylinder 22, the inner cylinder 23, In between, the protrusion 27 engages with the non-grooved portion 34 of the inner cylinder 23, and the outer cylinder 22 moves toward the front end side together with the inner cylinder 23.

As shown in FIG. 8B, when the sliding member 12 moves to the middle part in the front-rear direction, the outer cylindrical body 22 protrudes to the front end side by the amount that the inner cylindrical body 23 has moved to the front end side. Then, the cap body 18 attached to the front end of the outer cylindrical body 22 pushes the front hanging portion 6 forward, and the front hanging portion 6 swings upward around the rotating portion 9.
As shown in FIG. 8C, when the sliding member 12 moves to the front end side, the outer cylindrical body 22 protrudes to the front end side with the maximum protrusion amount. Then, the front hanging portion 6 swings upward to a substantially horizontal position around the rotating portion 9 by the cap body 18 of the outer cylindrical body 22.

The above reclining operation pattern is the third pattern (FIG. 4).
Next, when the operation knob 36 of the switching operation unit 60 is rotated clockwise as viewed from the front end side, the protrusion 27 is engaged with the first guide groove 32.
When the reclining mechanism 3 is operated in this state, as shown in FIG. 9A, the inner cylinder 23 moves forward together with the sliding member 12, and a protrusion is formed between the outer cylinder 22 and the inner cylinder 23. 27 is engaged with the first guide groove 32, and the locking pin 37 is engaged with the engagement groove 30. During this time, the outer cylinder 22 does not move, and the front hanging part 6 does not swing.

As shown in FIG. 9B, when the sliding member 12 moves to the middle part in the front-rear direction, the protrusion 27 reaches the groove end of the first guide groove 32, and the protrusion 27 engages with the groove end. As a result, the outer cylinder 22 starts moving forward integrally with the inner cylinder 23.
As shown in FIG. 9 (c), when the sliding member 12 moves to the front end side, the sliding is performed after the protrusion 27 is engaged with the end of the first guide groove 32 until the movement is finished. The outer cylinder 22 protrudes toward the front end side by the distance that the member 12 has moved. However, since the outer cylinder 22 does not move from the beginning in accordance with the inner cylinder 23, the protruding amount of the outer cylinder 22 is smaller than the maximum protruding amount. As a result, the front drooping portion 6 swings to a swing angle smaller than that in FIG. 8C (a position inclined obliquely downward with respect to the horizontal direction), and changes to a tilt state intermediate between the normal state and the reclining state.

The above reclining operation pattern is the second pattern (FIG. 3).
On the other hand, when the operation knob 36 of the switching operation unit 60 is rotated counterclockwise as viewed from the front end side, the protrusion 27 engages with the second guide groove 33.
When the reclining mechanism 3 is operated in this state, as shown in FIG. 10A, the inner cylinder 23 moves forward together with the sliding member 12, and a protrusion is formed between the outer cylinder 22 and the inner cylinder 23. 27 is engaged with the first guide groove 32, and the locking pin 37 is engaged with the engagement groove 30.
As shown in FIG. 10B, even if the sliding member 12 moves to the middle part in the front-rear direction, the second guide groove 33 is formed longer in the front-rear direction than the first guide groove 32. 27 is still in the second guide groove 33. Accordingly, even at this stage, the outer cylindrical body 22 does not move, and the front hanging portion 6 does not swing.

As shown in FIG. 10C, even when the sliding member 12 moves to the front end side, the protrusion 27 is still in the second guide groove 33, and the outer cylinder 22 is slid with the inner cylinder 23 or the sliding. It does not move along with the member 12. As a result, the front drooping portion 6 does not swing at all.
The above reclining operation pattern is the first pattern (FIG. 2).
The present invention is not limited to the above-described embodiment, and the shape, structure, material, combination, and the like of each member can be appropriately changed without departing from the essence of the invention.
For example, in the linear actuator 13, the protrusion 27 can be formed on the outer peripheral surface of the inner cylindrical body 23, and the guide groove 28 can be formed on the inner peripheral surface of the outer cylindrical body 22. Further, the number of guide grooves 28 is not limited to two (two types having different lengths).

The switching operation unit 60 is not limited to being implemented as the structure of the reclining mechanism 3 (linear actuator 13), and may be implemented as an electrical control method or a computer control (software control) method. Moreover, even when it implements structurally, it is not limited to above-described embodiment.
Providing the armrests 2R and 2L to the seat 4 is not limited. Therefore, you may make it provide the seating position operation part 51 in the seat part 4 itself or the leg body 7. FIG. Further, the seating position operation part 51 may be provided on the right side of the seat part 4.

It is a perspective view of the barber / beauty chair according to the present invention. It is a side view which shows the 1st pattern of a reclining operation | movement. It is a side view which shows the 2nd pattern of a reclining operation | movement. It is a side view which shows the 3rd pattern of a reclining operation | movement. It is the right view which showed the internal mechanism of the barber / beauty chair which concerns on this invention. It is the bottom view which showed the internal mechanism of the barber / beauty chair according to the present invention. It is a disassembled perspective view of a linear actuator. It is explanatory drawing of a linear actuator in the case of engaging a projection part with a non-groove part. It is explanatory drawing of a linear actuator in the case of engaging a projection part with a 1st guide groove. It is explanatory drawing of a linear actuator in the case of engaging a projection part with a 2nd guide groove.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Barber / Beauty chair 3 Reclining mechanism 4 Seat part 5 Backrest part 6 Front drooping part 12 Sliding member 13 Linear actuator 22 Outer cylinder body 23 Inner cylinder body 24 Support body 27 Protrusion part 28 Guide groove 51 Seating position operation part 52 Seat part height Adjustment switch 60 switching operation section

Claims (5)

In a hairdressing and beauty chair having a seat, a backrest provided at the rear of the seat, and a front hanging part provided at the front of the seat,
A first pattern in which only the backrest portion is reclined; a second pattern in which the front suspension portion swings upward in a small width in addition to the reclining operation of the backrest portion; and the front suspension portion in addition to the reclining operation of the backrest portion. A switching operation unit capable of switching between at least two operation patterns with the third pattern swinging upward significantly;
A reclining mechanism for causing the backrest part and the front hanging part to operate according to the operation pattern selected by the switching operation part;
Barber / beauty chair characterized by having. The reclining mechanism includes a sliding member that moves back and forth to perform a reclining operation of the backrest portion, pushes the front hanging portion forward in conjunction with the sliding member, and the amount of pushing is variable in a plurality of stages by the switching operation portion. A linear actuator, and
The barber / beauty chair according to claim 1, wherein a joint portion between the linear actuator and the front hanging portion is a contact mechanism. A side position of the seat portion is provided with a seating position operation portion comprising a plurality of switches for adjusting the seating position,
The barber / beauty chair according to claim 1, wherein a seat height adjustment switch is disposed at a position that is the rearmost in the seating position operation portion. In a hairdressing and beauty chair having a seat, a backrest provided at the rear of the seat, and a front hanging part provided at the front of the seat,
A side position of the seat portion is provided with a seating position operation portion comprising a plurality of switches for adjusting the seating position,
A barber / beauty chair characterized in that a seat height adjustment switch is arranged at the rearmost position in the seating position operation section. On the side of the pedestal that supports the seat, a foot switch for operating the reclining mechanism is provided,
The barber / beauty chair according to claim 3 or 4, wherein the seating position operation part is provided on the side where the foot switch is provided and in front of the center position in the front-rear direction of the seat part. .

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