JPH0535Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is mainly used as a shampoo chair in beauty salons, and the backrest can be reclined at a certain angle so that it can also be used as a beauty set chair or hair dryer chair. Regarding the beauty chair that can be used.

[Conventional technology]

Conventional beauty setting chairs and dryer chairs are
Since the backrest could not be raised or lowered, it could not be used as a shovel chair.

On the other hand, the backrest of the jump chair can be raised and lowered, and the backrest can be stopped at any angle, and the raising and lowering mechanism is installed below the seat.

[Problem that the invention attempts to solve]

The lifting mechanism installed below the seat of the above-mentioned lift chair is a complicated mechanism that allows the lifting angle to be set arbitrarily, as well as locking and releasing the links, making the device large-scale. I get used to it.

As a result, the cost was high, and there were drawbacks such as spoiling the aesthetic appearance of the area below the seat.

[Means for solving problems]

The present invention eliminates the drawbacks of the shampoo chair mentioned above, is low-cost, can be used as a chair for beauty treatments and hair dryers, and simplifies the mechanism by making the reclining angle of the back constant. The purpose is to provide a beauty chair that does not impair the beauty of the chair by being attached to an armrest or the like.

and a seat, a backrest attached to the seat so that it can be raised and lowered, armrests fixed to both sides of the seat, and a fixing bracket fixed to the inner surface of the armrest; A rotating bracket is fixed to the side surface of the backrest and rotatably pivoted at a constant angle with respect to the fixed bracket; and a rotating bracket is located below the back of the backrest and has both ends rotatably pivoted to the fixed bracket. and a lock arm formed at both ends of the lock bar, the notch of which is engaged with a lock pin formed on the pivot bracket when the backrest is erected. It will be done.

[Effect]

In the beauty chair of the present invention, the lock arm is rotated to release the lock pin from the notch, and the rotation member is rotated by the biasing force of the biasing member to move the backrest backward. Lay down.

When the backrest is erected against the bias of the biasing member, the lock pin of the rotating member is engaged with the notch of the lock arm, and the backrest is maintained in the erected state.

〔Example〕

An example of implementation of the invention will be described below with reference to the drawings.

In FIG. 4, reference numeral 1 designates armrests integrally attached to the seat 13 on the left and right sides thereof, and 2 designates a backrest that supports the back of a person seated on the seat 13.

In Figures 1 to 3, reference numeral 3 denotes a fixing bracket, which is a fixing member, with one attached to the inside of the left and right armrests 1.
A rotating bracket 4, which is a rotating member, is rotatably attached to the fixed bracket 3 via a support shaft 5.

One side of this rotating bracket 4 is formed into two sides 4a and 4b that form an obtuse angle with each other, and only during the angle at which these two sides 4a and 4b touch the support wall 3a of the fixed bracket 3, the rotating bracket 4 can rotate.

One rotating bracket 4 is attached to each of the right and left sides of the backrest 2 by means of mounting screws 6 and 7, so that the backrest 2 is attached to two of the rotating brackets 4.
It can be raised and lowered at an angle between the sides 4a and 4b touching the supporting wall 3a of the fixed bracket 3.

Further, a lock bar 11 having a lock arm 10 at both ends is rotatably attached to the left and right fixed brackets 3 by a mounting screw 8, and the backrest 2 is attached to a rotating bracket 4, which will be described later. The lock bar 11 is switched between an upright state by the biased spring 12 and a prone state in which it rotates backwards against the spring 12 due to its own weight applied to the backrest 2. is configured to be rotated in the direction of arrow A in FIG. 1 by a lock pin formed on the pivot bracket 4.

A notch 10a is formed in the lock arm 10, and this notch 10a is inserted into the lock pin 9 protruding from the rotating bracket 4.
1 is moved in the direction of engagement by rotation in the direction of arrow A.

Further, a spring 12 is wound around the support shaft 5, and both ends of the spring 12 are in contact with the lock pin 9 and the support wall 3a, and bias the rotating bracket 4 in the direction opposite to the arrow B in FIG. ing.

Therefore, when the backrest 2 is raised in the direction opposite to the arrow B in FIG.
Since the backrest 2 is rotated by the spring force of the spring 12, the backrest 2 is rotated until one side 4a of the bracket 4 touches the support wall 3a of the fixed bracket 3 as shown by the solid line in FIG. 2, and the backrest 2 is in an upright state. becomes.

At this time, the lock bar 11 is about to rotate in the direction of arrow A in FIG.
If a matches, the notch 1 will be cut out as shown by the solid line in Figure 2.
0a locks the lock pin 9.

This prevents the rotation bracket 4 from rotating and keeps the backrest 2 in an upright position.

Furthermore, if the lock bar 11 is pulled up in the direction opposite to the arrow A in FIG. be done.

Therefore, when the rotating bracket 4 is pushed against the spring force of the spring 12, it is rotated in the direction of arrow B in FIG. 1, and stops when one side 4b hits the support wall 3a.
Thereby, the backrest 2 is folded backward.

[Effect of idea]

As described above, in the present invention, when the backrest is in the upright state, the notch of the lock arm engages with the lock pin of the rotating bracket to prevent the backrest from falling down, and the lock bar is rotated to engage the lock pin. By releasing the engagement with the notch, the rotating block is tilted down to a certain angle where it comes into contact with the fixed block, so the configuration is extremely simple.
In addition, the cost is low and there is no risk of trouble, and furthermore, the lock pin and the notch are inevitably engaged when the backrest is turned from the prone position to the upright position, so it is easy to handle. It has the following effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an exploded perspective view of its main parts, Fig. 2 is a side view of the same, the two-dot chain line shows the state in which the backrest is reclined, and Fig. 3 shows its state. The plan view and FIG. 4 are overall oblique views. 1...Armrest, 2...Backrest, 3...Fixed bracket, 4...Rotating bracket, 5...Spindle, 9
...Lock pin, 10...Lock arm, 10a
...Notch, 11...Lock bar, 12...Spring.

Claims (1)

[Scope of utility model registration request] A seat 13, a backrest 2 attached to the seat so that it can be raised and lowered, an armrest 1 fixed to both sides of the seat, and a fixed bracket 3 fixed to the inner surface of the armrest. a rotating bracket 4 fixed to the side surface of the backrest and rotatably pivoted at a predetermined angle with respect to the fixed bracket; Lock bar 11 freely pivoted
and notches 1 formed at both ends of the lock bar.
A beauty chair characterized in that 0a comprises a lock arm 10 that is engaged with a lock pin 9 formed on the rotating bracket when the backrest is erected.