JPH0343884B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hairdressing chair, and more specifically, the present invention relates to a hairdressing chair suitable for shampooing a customer by turning the customer from a sitting position to a supine position and placing the nape of the neck on the neck part of a shampoo bowl. Regarding hairdressing chairs.

This type of hairdressing chair is usually configured so that the backrest is folded down as the underseat is raised, or raised as the underseat is lowered.

In the hairdressing chair described above, the backrest is designed to almost completely collapse when the underseat reaches its upper limit position. For this reason, the upper limit position of the under seat is adjusted to the installation height of the shampoo bowl. However, due to individual differences among customers, it may not be possible to properly place the nape of the neck on the neck part of the shampoo bowl.

For example, for some customers, the upper limit of the underseat is slightly lower, so the nape of the neck hits the neck of the shampoo bowl, and conversely, the upper limit of the underseat is slightly higher, so There may be a gap between the nape of the neck and the neck of the shampoo bowl. If the upper limit position of the underseat is slightly higher, you can stop the underseat slightly before the upper limit position, but in this case the backrest has not completely collapsed and it is not possible to shovel in this state. This forces the customer into an uncomfortable position.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a hairdressing chair that allows customers to have a bath without forcing them into an unreasonable posture, even if there are individual differences. .

The present invention includes a mechanism that almost completely collapses the backrest while the underseat is rising, and a mechanism that allows the backrest to be folded down almost completely while the underseat is being raised, and a mechanism that allows the backrest to be folded down regardless of the raising and lowering movement of the underseat between the height position where the backrest is almost completely collapsed and the upper limit position of the underseat. It is characterized by being equipped with a mechanism that maintains it in an almost completely folded state.

That is, according to the present invention, the height can be adjusted with the backrest in a state where it is almost completely folded down.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an example of the hairdressing chair of the present invention. In the figure, numeral 1 is a base, 2 is an underseat, and 3 is a backrest.

A main shaft (ram) 5 driven by a hydraulic cylinder (not shown) or the like is rotatably installed in the center of the base 1 in an upright position, and the upper part of the main shaft 5 protrudes from the center of the base 1. ing.

An underseat base 6 supporting the underseat 2 is supported at the upper end of the main shaft 5, and the underseat 2 is moved up and down by the main shaft 5. Armrests 7 are fixed to both sides of the underseat base 6. Further, a footrest 8 is rotatably provided at one end of the underseat 2 (on the right side in FIG. 1).

Connecting plates 10 are fixed to the lower ends of both sides of the backrest base plate 9 of the backrest 3, and the ends of the connecting plates 10 are rotatably connected to the armrest 7 via pins 11.

The above configuration is almost the same as a normal hairdressing chair. Next, the characteristic parts will be explained.

A sleeve 12 is fitted into a portion of the main shaft 5 that protrudes from the center of the base 1 so as to be movable in the axial direction. As shown in FIG. 3a, this sleeve 12 is located on the upper end surface of the central portion of the base 1, and is provided with a cylindrical portion 13 extending in a direction perpendicular to the axis on its outer peripheral surface. This cylindrical portion 13 communicates with the inside of the sleeve 12, and the cylindrical portion 13
A lock piece 14 and a spring 15 are inserted inside. A screw shaft 16 is screwed into the end of the cylindrical portion 13, and the lock piece 14 is screwed by the screw shaft 16.
is pressed toward the sleeve 12 side.

On the other hand, a notch 17 is provided at a predetermined height position on the outer peripheral surface of the main shaft 5, and when the main shaft 5 rises to a predetermined height, for example, about 100 mm from the state shown in FIG. 2. Move to the height position of the lock piece 14. At this time, the lock piece 14 engages with the notch 17 due to the elastic force of the spring 15.

In this engaged state, as shown in FIG.
4a is adapted to be engaged, so that it will not come off when the main shaft 5 moves upward. Therefore, lock piece 14
After the sleeve 12 engages with the notch 17, the sleeve 12 is locked onto the main shaft 5 and rises together with the main shaft 5.

Even when the main shaft 5 descends from its upper limit position, the spring 15 maintains the engaged state of the lock piece 14; Part 17
When it returns to the height position when engaged),
A force is applied from the inclined surface 17b of the notch 17 to push back the lock piece 14 against the elastic force of the spring 15, so that the lock piece 14 is moved back and the notch 17 is pushed back.
come off from

That is, while the main shaft 5 rises to a predetermined height, the sleeve 12 is not locked and is in a free state, and when the predetermined height is exceeded, the sleeve 12 moves up to the main shaft 5.
rises with The sleeve 12 remains locked while the main shaft 5 returns to a predetermined height from its ascent limit position (for example, a position raised by about 140 mm from the position shown in FIG. 3a), and when it descends below the predetermined height. The sleeve 12 returns to its free state.

Support portions 18, 18 (see FIG. 5) are provided outside the cylindrical portion 13 on the outer peripheral surface of the sleeve 12 configured as described above, and these support portions 18, 1
8 is rotatably connected to one end of a substantially dogleg-shaped backrest operating rod 19 via a pin 20.

The other end of the backrest operating rod 19 is connected to a rotating plate 21 fixed to both lower ends of the backrest base plate 9.
It is rotatably connected to via a pin 22.
When the main shaft 5 (underseat 2) rises within a height range where the sleeve 12 is not locked onto the main shaft 5, the backrest operating rod 19 rotates about the pin 20 in the direction opposite to the direction of arrow A shown in FIG. As a result, the backrest 3 falls down using the pin 11 as a fulcrum. Further, when the main shaft 5 (underseat 2) is lowered in the above range, the backrest operating rod 19 rotates in the direction of arrow A in the figure using the pin 20 as a fulcrum, thereby causing the backrest 3 to stand up using the pin 11 as a fulcrum.

The mechanism that rotates the backrest 3 as the underseat 2 moves up and down, such as the backrest operating rod 19 and the connecting plate 10, rotates the backrest 3 when the main shaft 5 rises and reaches a height at which the sleeve 12 is locked. It is set to almost completely defeat it.

In the height range where the sleeve 12 is locked to the main shaft 5, the pin 20 moves together with the main shaft 5, so the backrest operating rod 19 does not rotate about the pin 20 as a fulcrum. For this reason, the backrest 3 is raised and lowered while remaining in an almost completely collapsed state. In other words, the height of the back crest 3 can be adjusted in a state where it is almost completely folded down.

Note that one end portion of a footrest operating rod 25 is rotatably connected to the lower surface of the footrest 8 described above via a pin 26. The other end of this footrest operating rod 25 is attached to the above-mentioned rotating plate 21 with a pin 2.
They are rotatably connected via 8. When the backrest 3 falls, the rotating plate 21 rotates about the pin 22 in the direction of arrow B shown in FIG. 4, and the footrest 8 is lifted by the footrest operating rod 25. Further, when the backrest 3 is raised, the footrest 8 is lowered by the footrest operating rod 25.

Furthermore, a substantially C-shaped gripping member 30 is provided on the upper end surface of the sleeve 12 described above. This gripping member 30 grips the main shaft 5 and locks the sleeve 12 onto the main shaft 5 when the operating lever 31 is rotated to the position shown in two-dot chain line in FIG. 3a. At this time, even if the underseat 2 is raised by the main shaft 5, the backrest 3 does not fall down. When the operating lever 31 is rotated to the solid line position shown in FIG.
is released, and the sleeve 12 becomes free. When backing up, the operating lever 31 is rotated to the same position.

Further, the base 1 described above is provided with a rotation stopper member 32 for the main shaft 5, although not shown in detail. The rotation stopper 32 is connected to, for example, a pedal, and rotates when the pedal is stepped on, thereby regulating the rotation of the main shaft 5.

Next, the operation of the above embodiment will be explained.

When shampooing, first, the main shaft 5 is rotated to position the backrest 3 on the side of the mirror equipped with the shampoo bowl. Next, when the underseat 2 is raised by the main shaft 5, the backrest operating rod 19 rotates to tilt down the backrest 3, and the footrest 8 is lifted by the footrest operating rod 25. When the underseat 2 rises to a predetermined height, the backrest 3 collapses almost completely as shown in FIG. 2, and the footrest 8 lifts almost completely, changing the passenger from a sitting position to a supine position. .

When the underseat 2 reaches a predetermined height position, the sleeve 12 is locked to the main shaft 5, so the pin 20, which is the rotational support point of the backrest operating rod 19, moves from this height position to the upper limit height position of the underseat 2. It moves up and down together with the main shaft 5 between the two. Therefore, the backrest operating rod 19 does not rotate and the backrest 3
remains almost completely collapsed. Further, since the backrest 3 does not move, the footrest 8 also remains in the same state.

In this state, the height of the backrest 3, underseat 2, and footrest 8 is adjusted so that the nape of the customer's neck appropriately touches the neck of the shampoo bowl.

Therefore, even if there are individual differences among customers, the nape of the neck can always be placed against the neck part of the shampoo bowl, and there is no fear that there will be a gap or that the customer will be forced into an unreasonable posture.

Once the vacuum lift is complete, lower the whole thing to a predetermined height. Then, the locked state of the sleeve 12 is released, and as the underseat 2 descends, the backrest operating rod 19 is rotated about the pin 20 in the opposite direction to the previous direction, and the backrest 3 is raised. Further, as the backrest 3 is raised, the footrest 8 is lowered by the footrest operating rod 25. Then, the state shown in FIG. 1 is restored.

If the operating lever 31 is rotated to the position indicated by the two-dot chain line in FIG. 3a at the lower limit position of the underseat 2, the backrest 3 will remain upright and will not fall over even if the underseat 2 rises. .

FIG. 6 shows another embodiment of the sleeve 12. In this embodiment, a triangular locking piece 34 is provided in a mounting hole 33 provided in the peripheral wall of the sleeve 12 to lock the pin 3.
5 so as to be swingable. The lock piece 34 is provided with a spring piece (not shown),
The lock piece 34 is biased toward the main shaft 5 inside the sleeve 12 by the spring piece. When the main shaft 5 rises and the notch 17 is positioned within the sleeve 12, the locking piece 34 engages with the notch 17 to lock the sleeve 12 onto the main shaft 5. In the above embodiment, the sleeve 12 is provided with the locking piece 14 or 34 as the first engagement means, and the main shaft 5 is provided with the notch 17 as the second engagement means, so that the sleeve 12 is provided with the lock piece 14 or 34 as the first engagement means, and the main shaft 5 is provided with the notch 17 as the second engagement means. 12 has been shown as an example, the lock piece may be provided on the main shaft 5 and the notch portion may be provided on the sleeve 12.

As explained above, according to the present invention, the mechanism (main shaft 5, backrest operating rod 1
9. Connecting plate 10, etc.) and a mechanism that maintains the backrest in an almost completely reclined state regardless of the raising and lowering movement of the underseat between the height position where the backrest is almost completely reclined and the upper limit position of the underseat. (Sleeve 12, lock piece 1
4, 34, notch 17, backrest operating rod 19
etc.), so the height can be adjusted with the backrest almost completely folded down, and even if there are individual differences among customers when it comes to backrests,
The nape of the neck can be placed well on the neck part of the shampoo bowl, and there is no fear of forcing the user into an unreasonable posture.

Also, a mechanism (grip) that stops the raising and lowering of the backrest accompanying the raising and lowering of the underseat by an external operation, and maintains the backrest in a substantially upright state over the entire range from the lowering limit position to the raising limit position of the underseat. holding member 30,
By adding an operating lever 31), the height of the backrest can be adjusted while the backrest remains erect.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall side view, FIGS. 2 and 4 are operation explanatory diagrams, and FIG.
Figures a and b are enlarged views of the main parts, Figure 5 is a perspective view of the sleeve, and Figure 6 is a sectional view showing another embodiment of the sleeve locking mechanism. 2...under seat, 3...butt crest,
5... Main shaft, 10... Connection plate, 12... Sleeve, 14, 34... Lock piece, 19... Backrest operating rod, 11, 20, 22... Pin, 30...
...grip member, 31...operation lever.

Claims (1)

[Claims] 1. As the main shaft of the drive source raises and lowers the underseat between the lower limit position and the upper limit position, the backrest rotatably supported by the underseat is raised and lowered. The hairdressing chair is configured to include a sleeve that is fitted onto the main shaft and is provided with a first engaging means, one end of which is rotatably supported by the sleeve, and the other end of which is rotatably supported by the sleeve. a backrest operating rod that is rotatably supported and is used to raise and lower the backrest; a protruding portion of the main shaft that protrudes from the base during the ascent process and is accommodated in the base during the descent process, the upper end of the protruding portion; a second engaging means provided at a predetermined length downward from the main shaft and engaged with a first engaging means provided on the sleeve in the process of raising the main shaft to raise the sleeve; A hairdressing chair characterized by being equipped with. 2. A backrest rotatably supported by the underseat is raised and lowered as the underseat is raised and lowered from the lowering limit position to the uppermost limit position by the main shaft of the drive source. In the beauty chair, a sleeve is fitted onto the main shaft and provided with a first engagement means; one end is rotatably supported by the sleeve, and the other end is rotatably supported by the backrest. a backrest operating rod for raising and lowering the backrest; and a protruding portion of the main shaft that protrudes from the base during the rising process and is accommodated in the base during the descending process, and a protruding portion of the main shaft that extends downward from the upper end of the protruding portion for a predetermined length. a second engaging means provided at a position that engages with a first engaging means provided on the sleeve during the process of the main shaft rising, and raises the sleeve; A hairdressing chair comprising: a locking mechanism for locking the sleeve to the main shaft for movement.