JPH0516849B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a hairdressing chair, and more particularly to a hairdressing chair suitable for washing the hair of a person in a supine position by tilting the backrest.

[Conventional technology]

2. Description of the Related Art Conventionally, hairdressing chairs have been known that are used in a so-called bath shampoo style in which a person undergoing hair washing is washed in a supine position on a bowl.

Fig. 2 shows a conventional hairdressing chair of this type, in which a base frame 2 is attached to a plunger 1 of a hydraulic cylinder device that is movable in the vertical direction, and a plurality of links are mounted on the base frame 2. A seat frame 4 is supported via a plate 3, and an underseat 5 is provided on the seat frame 4. Above base frame 2
A backrest 7 connected to an armrest 6 provided on the seat frame 4 is pivotally attached to the end of the seat frame 4, and a hydraulic cylinder device 8 is provided within the base frame 2 in a slightly upwardly tilted state. A plunger 8a of this hydraulic cylinder device is directly pivotally mounted on the lower surface of the seat frame 4.

Then, as the underseat 5 moves upward and backward as the hydraulic cylinder device 8 extends, the backrest 7 is tilted, and as the chair rises, the seated patient assumes a supine posture. The head can move onto a shampoo bowl (not shown) to perform the above-mentioned shampoo. Further, when the hydraulic cylinder device 8 is contracted, the underseat 5 moves downward and forward while the backrest 7 rises.

[Problem to be solved by the invention]

However, in the above-mentioned conventional hairdressing chair, the underseat 5 rises and retreats according to the operating amount of the hydraulic cylinder device 8 directly connected to the chair. The amount of rise is fixed, and the size of the hydraulic cylinder device 8 is limited to what can be accommodated within the base frame 2, so as a result, the amount of rise of the chair cannot be increased very much. have.

Therefore, the amount by which the chair is raised by the hydraulic cylinder device 8 alone cannot compensate for the amount of head movement of the patient from the seated position to the supine position when the chair is raised, and the patient who is in the supine position The practitioner's head position is much lower than that in a seated position,
When attempting to wash the hair in such a state, there is a problem in that the operator must bend considerably forward.

The present invention has been made in view of the above points, and
In a chair in which a seated patient falls into a supine position as the chair rises, the amount of rise of the chair can be increased, and when the chair rises to the required height, the backrest and front sag are nearly horizontal. To provide a hairdressing chair that can be tilted to a certain angle so that the height of a customer's head is at an appropriate position for hair washing work.

[Means to solve the problem]

In order to achieve the above object, the hairdressing chair according to the present invention has a backrest portion and a front flap that are inclined in conjunction with the upward and backward movement of the seat portion, and the above-mentioned In a hairdressing chair with a standing backrest and a front sag, one end of a parallel link having a long link in the front-rear direction of the chair is pivoted below the front edge of the seat,
The other end of the parallel link is pivotally connected to a support frame provided below the rear edge of the seat, the end of a cylinder is pivotally connected to the support frame, and the rod tip of the cylinder is A tilting bracket is pivotally attached to the middle portion of one of the long links, and the backrest portion is provided with a tilting bracket projecting downward, and a rotating bracket is pivotally attached to the seat portion, and one end is attached to the one long link. The other end of the backrest link, which is pivotally attached, and the other end of the front hanging link, one end of which is pivotally attached to the front hanging, are pivotally attached to the tip of the tilting bracket.

[Effect]

According to the present invention, one end of the pair of parallel links is pivotally attached below the front edge of the seat, and the other end of the pair is pivotally attached to a support frame provided below the rear edge of the seat, Since the rod end of a hydraulic cylinder device whose cylinder base end is pivotally connected to the support frame is pivotally connected to the intermediate position in the longitudinal direction of one of the parallel links, the operating amount of the hydraulic cylinder device is This is increased by the link and transmitted to the chair, allowing the seated patient to move into a supine position as the chair rises.This large amount of chair lift increases the amount of movement of the patient. The amount of head movement from the seated position to the supine position can be reduced.

〔Example〕

Embodiments of the present invention will be described below with reference to FIG. Note that the same reference numerals are used for parts that are the same as in the prior art.

FIG. 1 shows an embodiment of the present invention, in which reference numeral 5 indicates an underseat constituting a seat, reference numeral 7 indicates a backrest constituting a backrest,
Reference numeral 9 designates a footrest that is formed continuously with the undersheet 5 and constitutes a front hanging portion.
1 is covered. A seat support plate 12 is provided on the underside of the core material 10 of the undersheet 5.
A main link bracket 13 is provided on the lower surface of the seat support plate 12. This main link bracket 13 has main link 1
One end of the main link 14 is pivotally connected to the main link 14, and the other end of the main link 14 is attached to the support frame 1, which is erected on a base plate 15 formed on the floor surface on which the chair is to be installed.
It is pivotally attached to the upper end of 6. Further, an auxiliary link 17 is provided parallel to the main link 14, and one end of the auxiliary link 17 is pivotally connected to the main link bracket 13, and the other end is pivotally connected to the support frame 16. There is. Then, the main link 14 and the auxiliary link 17
are configured to form long parallel links ABCD in the front and back direction of the chair.

Further, the base end of a cylinder 18a of a hydraulic cylinder device 18 is pivotally attached to the lower end of the support frame 16, and the tip of the rod 18b of the hydraulic cylinder device 18 is connected to the support frame 16 of the main link 14. It is pivotally attached to a mounting bracket 19 formed on the lower side surface. Then, due to the operation of the hydraulic cylinder device 18, the main link 1
Parallel link consisting of 4 and auxiliary link 17
ABCD is made to tilt.

Further, a support bracket 20 is fixed to the end of the seat support plate 12 on the side of the backrest 7,
A rotating bracket 21 is pivotally attached to the end of the support bracket 20. A mounting plate 21a integrally formed with the rotation bracket 21 is attached to the underseat 5 of the core material 10 of the backrest 7.
It is designed to be attached to the lower surface of the side end.
Further, a tilting bracket 22 is attached to the upper surface of the underseat 5 side end of the core material 10 of the backrest, and one end of a backrest link 23 is pivotally attached to a part of the tilting bracket 22.
The other end of the backrest link 23 is pivotally attached to a mounting bracket 24 formed on the lower surface of the main link 14. Furthermore, the tilting bracket 2
One end of a front hanging ring 25 is pivotally attached to the other part of the footrest 9, and the other end of the front hanging link 25 is pivotally attached to a mounting bracket 26 formed on the lower surface of the core member 10 of the footrest 9. . Also, a core material 10 of the undersheet 5 and footrest 9 is provided.
are connected by a hinge member 27.

Note that reference numeral 6 designates armrests formed integrally with the underseat on both sides of the underseat 5.

Next, the operation of this embodiment will be explained.

In this embodiment, the small operating amount of the hydraulic cylinder 18 is expanded, and the underseat 5 rises to a height convenient for hair washing and retreats slightly, and the backrest 7 and footrest 9 tilt until they are almost horizontal. Furthermore, as the underseat 5 moves downward and slightly forward, the backrest 7 and the footrest 9 rise up.

That is, when the rod 18b of the hydraulic cylinder device 18 extends, the main link 14 pivotally connected to the tip of the rod 18b tilts upward in the figure, and together with this main link 14, the parallel link
The auxiliary link 17 forming ABCD tilts upward. Then, as the parallel link ABCD tilts to the position indicated by the two-dot chain line, the underseat 5 supported by the parallel link ABCD via the main link bracket 13 rises and retreats while maintaining the horizontal state of the seat surface. Move to the position indicated by the two-dot chain line in the middle. At this time, the hydraulic cylinder device 1
8 is increased by the parallel link ABCD and transmitted to the underseat 5, the underseat 5 can rise from a low position to a high position, and the amount of rise increases.

Further, both pivot points E and F of the backrest link 23 and both pivot points B and G on the underseat 5 side form a four-bar link.

Therefore, when the main link 14 tilts upward, the pivot point E of the backrest link 23 rotates counterclockwise with respect to the pivot point B, so that the backrest link 23 moves toward the underseat 5. 1, the pivot point F rotates counterclockwise with respect to the pivot point G, and the backrest 7 tilts.

At this time, if the distance from the pivot point F to the pivot point G is shortened, the amount of tilting of the backrest 7 will increase, making it possible to tilt it to a substantially horizontal angle. Therefore, the tilting of the main bracket 14 causes the backrest 7 to tilt to the position indicated by the two-dot chain line in conjunction with the upward and backward movement of the underseat 5.

Further, in this embodiment, the footrest 9 is brought into a substantially horizontal state in conjunction with the tilting of the backrest 7.

That is, when the backrest link 23 moves upward with the tilting of the main link 14, the tilting bracket 22 connected to the backrest link 23 moves upward while rotating counterclockwise. As the tilting bracket 22 moves upward, the front hanging link 25 connected to the tilting bracket 22 also moves upward. This front hanging link 25
The movement is performed by the front hanging link 25 and the tilting bracket 2.
2 rotates around the pivot point G, and the pivot point I between the front hanging link 25 and the mounting bracket 26 rotates around the pivot point J of the hinge member 27.
The movement of the front hanging link 25 causes the hinge member 27 to rotate.
The attachment portion on the footrest 9 side rotates counterclockwise, and the entire footrest 9 rotates counterclockwise to become approximately horizontal.

Therefore, in the present beauty and beauty chair, the underseat 5 rises and retreats due to the extension of the hydraulic cylinder device 18, and the backrest 7 tilts and the footrest 9 becomes approximately horizontal, so that the seated patient cannot raise the chair. At the same time, the patient assumes a supine posture, and the head of the person to be treated moves onto a shampoo bowl (not shown), allowing him to perform a shampoo bowl.
Furthermore, when the hydraulic cylinder device 18 is contracted, the underseat 5 is lowered and moved forward, the backrest 7 is erected, and the footrest 9 is placed in a hanging state, so that the patient in the supine position returns to the seated position.

Therefore, in this embodiment, both ends of the backrest link 23 (E,
F), the support bracket 20 fixed to the underseat 5 is pivotally connected to the rotation bracket 21 of the backrest 7 (to the pivot point G), and the main link 14 is connected to the pivot point B of the underseat 5. At the pivot point,
A four-bar link (E, F, G, B) is configured, and the backrest 7 is tilted almost horizontally depending on the amount of elevation of the underseat 5.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the following effects.

A small cylinder housed below the hairdressing chair allows the seat to be raised and lowered to a height convenient for hair washing.

Further, when the seat part is raised to a predetermined height, the seat part moves back slightly, so that the customer's head is in a position where it is easy to wash hair.

The backrest and the front flap are tilted in conjunction with the rise of the seat, and when the seat is raised and lowered to a predetermined height, the backrest and the front flap are tilted almost horizontally, making it easy to wash hair.

Since the pivot point of the link for tilting the backrest is provided at the lower end of the backrest, the link is difficult to see from the outside, and the link can be operated safely for the customer.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of a hairdressing chair according to the present invention, and FIG. 2 is a side view of a conventional hairdressing chair in the shampoo position. 5... Seat part (under seat), 7... Backrest part (backrest), ABCD... Parallel link (1
4...Main link, 17...Auxiliary link), 1
6...Support frame, 18...Hydraulic cylinder device.

Claims (1)

[Scope of Claims] 1. The reason why the backrest portion and the front sag are tilted in conjunction with the upward and backward movement of the seat portion, and the backrest portion and the front sag are erected in conjunction with the downward and forward movement of the seat portion. In the beauty chair, one end of a parallel link having a long link in the front-rear direction of the chair is pivoted below the front edge of the seat,
The other end of the parallel link is pivotally connected to a support frame provided below the rear edge of the seat, the end of a cylinder is pivotally connected to the support frame, and the rod tip of the cylinder is A tilting bracket is pivotally attached to the middle portion of one of the long links, and the backrest portion is provided with a tilting bracket projecting downward, and a rotating bracket is pivotally attached to the seat portion, and one end is attached to the one long link. A hairdressing chair characterized in that the other end of the backrest link which is pivotally attached and the other end of the front hanging link whose one end is pivotally attached to the front hanging are pivotally attached to the tip of the tilting bracket.