JP3120728B2 - Safety hanging device for hairdressing chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair used in a barber or a hairdressing salon, where the sloping undulations interlock with the ups and downs of the backrest. The present invention relates to a hairdressing chair that hangs down and supports a calf portion of a seated customer.

[0002]

2. Description of the Related Art In a conventional barber / beauty chair, when a seated customer is shifted to a back shampoo position, that is, when the seat is raised and the backrest in the upright state is turned down, the seat is shifted. The backrest is turned down via the link mechanism while being raised, the back part of the customer's neck is supported by the shampoo ball, and the front hanging is rotated on the horizontal extension line of the seat in conjunction with the shift of the backrest, and To support the calf.

In order to raise the backrest in the lying down position, the backrest is raised via a link mechanism while lowering the seat, and the forward slant is rotated to a position substantially perpendicular to the seat. I was letting it.

[0004]

By the way, in the above-mentioned conventional construction, the backrest and the front hanging are performed by one set of link mechanisms for raising and lowering as the seat is raised. The link mechanism is forcibly rotated by the link mechanism when the front hanging is rotated to a position substantially perpendicular to the sheet in conjunction with the erecting from the time of falling down.

[0005] Therefore, if there is an object between the back side of the hanging and the lower part of the hairdressing chair, there is no stopping means for the hanging, and the object is sandwiched between the hanging and the lower part of the chair. Accidents such as damage caused.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to absorb an external force by a spring force when an external force is applied in a direction opposite to a rising direction of a forward drop. Therefore, even if an object or the like is interposed between the lower part of the chair and the back surface of the stool, it is an object of the present invention to provide a safety device for a hairdressing chair that does not damage the object.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a safety hanging device for a hairdressing chair which achieves the above-mentioned object.
The means is a barber / cosmetic chair in which a vertical frame is moved up and down via a parallel link by expansion and contraction of a cylinder, and a backrest and a front drop are turned up and down in conjunction with the displacement of the parallel link. A control link is pivotally supported, and one end of the control link is connected to a backrest link connecting the backrest and one end of an extruding link connecting the parallel link, and a forward link and the control link are connected by a connection link. Along with the connection, a spring is stretched between the control link and the connection link to release the hydraulic pressure and high pressure air to the cylinder, whereby the control link is rotated and connected via the push-out link due to the weight of the seat or the like. The restriction for holding the sagging by the link in the lying down state is released, and the sagging moves in the rising direction by its own weight.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a hairdressing chair according to the present invention; In FIG. 1, 1 is a pedestal, 2 is a seat that moves up and down by depressing a pedal 1a provided on the pedestal 1, 3 is a backrest having a handrail 3a connected to the seat 2, and 4 is a seat 2 When the seat 2 is raised and the seat 2 is raised, the backrest 3 and the front hanging 4 fall down (in a two-dot chain line position), and when the seat 2 is lowered, the backrest 3 and the front hanging 4 stand (a solid line position).

Next, details of the internal structure will be described with reference to FIGS. A U-shaped base frame 5 having an open top is mounted in the pedestal 1, and the cylinder side of a cylinder 6 such as a hydraulic or air cylinder is pivotally supported by a pin 6 a at the bottom of the base frame 5. Further, on both upper sides of the base frame 5, parallel links 7, 8 are supported by pins 7a, 8a.

A shaft 7b for connecting the parallel links 7 on both sides is inserted through an intermediate portion of the parallel link 7, and a tip of a piston 6b of the cylinder 6 is supported at an intermediate portion of the shaft 7b. . Further, a U-shaped vertical moving frame 9 whose lower part is opened is axially supported by pins 7c, 8c at the ends of the parallel links 7, 8 so that the parallel links 7, 8 are in a parallel state.

The parallel link 8 is formed with a connecting portion 8b whose tip end is bent, and one end of an inverted S-shaped push-out link 10 is pivotally supported by the connecting portion 8b by a pin 10a. The other end of the pushing link 10 has one end of an L-shaped backrest link 11 pivotally supported by a pin 11a.

On the other hand, a backrest 12 having a backrest 3 attached thereto is pivotally supported by a pin 12a on an upright portion 2c of the sheet metal 2b constituting the seat 2, and the pushback link 12 is attached to the backrest 12. The tip of 10 is pin 10
b.

Further, one end of the hanging member 4a constituting the hanging member 4 is connected to a pin 4 by a tip of the sheet metal member 2c.
b, one end of a front hanging link 13 is supported by a pin 13a on a metal fitting 4c near the sheet of the front hanging metal 4a.

Reference numeral 14 denotes a connecting link in which the other end of the forward link 13 is pivotally supported by a pin 13a. Reference numeral 15 denotes a pin 1 at a pivot of the pushing link 10 and the backrest link 11.
1a is a control link pivotally supported by 1a. The control link 15 is bent in an L shape, and the other end of the connection link 14 is pivotally supported by the bent portion by a pin 14b.

The control link 15 and the connecting link 14
A spring 16 is stretched at a substantially intermediate point between the control link 15 and a push pin 15 a protruding from the tip of the control link 15 is in contact with the side surface of the connection link 14. In other words, the pushing pin 15a comes into contact with the connection pin 14 being pulled by the spring 16.

Next, the customer is shifted to the shampoo position from the state where the seat 2 in FIG. 2 is in the lowered position and the backrest 3 and the front hanging member 4 are upright, that is, the seat 2 in FIG. The operation in which the backrest 3 and the front hanging 4 shift to a horizontal state will be described.

When hydraulic pressure or high-pressure air is supplied to the cylinder 6 in the state shown in FIG. 2, the piston 6b is extended and the parallel link 7b is rotated counterclockwise. As a result, the parallel link 8 also rotates counterclockwise, so that the up-and-down moving frame 9 rises substantially vertically and raises the seat 2.

When the push-up link 10 is raised by rotating the parallel link 8 counterclockwise, the tip of the push-up link 10 turns the control link 15 counterclockwise about the pin 14b as a fulcrum. The backrest link 11 pivotally supported by the pin 11a with the control link 15
Down. As a result, the backrest 12 is connected to the pin 12a.
Is pivoted counterclockwise with the fulcrum as a fulcrum, and the backrest 3 is pivoted counterclockwise to fall down.

On the other hand, when the control link 15 is rotated in the counterclockwise direction, the connecting link 14 which is pivotally supported by the vertical frame 9 via the pin 14b is pushed by the pushing pin 15a of the control link 15 so that the spring 16 Since it is turned counterclockwise against the spring force, the front hanging bracket 4a is turned counterclockwise via the front hanging link 13 to fall down parallel to the seat 2. Thus, the customer can be shampooed.

Next, a description will be given of the operation of shifting from the shampoo state to the upright state shown in FIG. When the hydraulic or high-pressure air is released from the cylinder 5, the piston 6b of the cylinder 5 contracts due to the weight of the customer, the seat 2, the backrest 3 and the front hanging member 4. As a result, the parallel links 7, 8 are rotated clockwise, and the vertical moving frame 9 descends substantially vertically.

When the parallel link 8 is rotated in the counterclockwise direction, the push-out link 10 moves down, so that the control link 1
5 is rotated clockwise, so that the backrest link 11 rotates the backrest fitting 12 clockwise, and returns the backrest 3 to the upright state.

On the other hand, when the control link 15 is rotated clockwise, the restriction by the push-out pin 15a of the connecting link 14 is released, and the weight of the customer's foot and the weight of the front hanging 4 causes the front hanging metal 4a to move clockwise. , And the hang 4 is in the standing state.

If an article exists between the hang 4 and the pedestal 1 while the hang 4 is standing, the rear side of the hang 4 contacts the article during the hang of the hang 4, and further hangs. 4 is prevented from standing. At this time, the control link 15 is further rotated clockwise by the lowering of the push-out link 10, but since the connection link 14 is rotated clockwise by the spring force of the spring 16, the rotation of the connection link 14 Even if the movement is prevented by the stop of the hang 4, the spring 16 extends and no excessive force acts on the hang 4,
Therefore, damage to the article can be prevented.

[0024]

As described above, according to the present invention, the link mechanism for raising and lowering the backrest and the link mechanism for raising and lowering the backrest are made independent. Since the rotation is performed by the spring means to rotate in the rising direction, even when an external force is applied in a direction opposite to the rising direction, the external force is absorbed by the spring means at the time of rising, so that the lower part of the chair and the hanging of the chair fall. Even if an object is interposed between the rear surface and the rear surface, there is an effect that the object is not damaged.

[Brief description of the drawings]

FIG. 1 is an overall side view of a hairdressing chair according to the present invention in which a safety device for hanging forward is incorporated.

FIG. 2 is a side view showing a state in which the backrest is erected by the above link mechanism.

FIG. 3 is a side view showing a state in which the backrest is lying down.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pedestal 2 Seat 3 Backrest 4 Front hanging 5 Base frame 6 Cylinder 7,8 Parallel link 9 Vertical moving frame 10 Extrusion link 11 Backrest link 13 Front hanging link 14 Connection link 15 Control link 16 Spring

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-180206 (JP, A) JP-A-8-24067 (JP, A) JP-A 4-40838 (JP, U) JP-A 62 131650 (JP, U) Japanese Utility Model Showa 60-182859 (JP, U) Japanese Utility Model Application Showa 59-139155 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47C 1/06

Claims (1)

(57) [Claims] 1. A barber / chair, wherein a vertical frame is moved up and down via a parallel link by expansion and contraction of a cylinder, and a backrest and a front drop are turned up and down in conjunction with the displacement of the parallel link. A control link is pivotally supported on the frame, one end of the control link is connected to a backrest link connecting the backrest, and one end of an extruding link connecting the parallel link is connected to the control link. In addition, a spring is stretched between the control link and the connection link, and the hydraulic pressure and high-pressure air are released to the cylinder, whereby the control link is rotated via the push-out link due to the weight of the seat or the like. The regulation for maintaining the sagging of the connecting link in a prone state is released, and the sagging moves in the upright direction by its own weight. .