JP2010179003A - Lift device for beauty salon chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem that since a gap between a chair and a hair wash bowl is narrow in the case of a structure of conventional technology, it is hard to deal with a customer from backward in the state that the customer is seated. <P>SOLUTION: A lift device for a beauty salon chair is constituted so that a main link 5 shifts by expansion of a hydraulic cylinder 7, a joint link 9 is allowed to shift because the main link shifts, so that a sub-link 6 shifts to lift a seat portion 8, and a backrest link 12 shifts because the sub-link shifts, to shift a fixed link 11 in a falling-down direction, and a turning plate 10c shifts by shifting the fixed link, to fall down a backrest 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is such that the seat portion is raised and lowered by one hydraulic cylinder, and the backrest is raised and lowered along with the raising and lowering, in particular, the seat portion is raised with respect to the hair washing bowl and the backrest is overturned and the subject's hair is washed. The present invention relates to a lifting device for a hairdressing and beauty chair suitable for performing.

  As a hairdressing and beauty chair suitable for shampooing, for example, there is an invention disclosed in Japanese Patent Laid-Open No. 2003-250652. The present invention has a structure in which a seat is lifted by one hydraulic cylinder and the backrest is raised and lowered as the seat is raised and lowered. That is, the seat is moved up and down by a hydraulic cylinder, and the other end of the link whose one end is connected to the backrest is connected to the seat that is moved up and down. It is the thing of the structure to do.

  And in the above-mentioned prior literature, since the backrest performs the undulation operation in a state where it is pivotally supported on the rear portion of the seat portion, the upper end of the backrest is supported by the shaft fulcrum with the seat portion. An arc motion is performed to support the back of the neck of the person to be treated by the recess of the hair-washing bowl.

JP 2003-250652 A

  By the way, in the structure of the above-mentioned prior art document, since the space | interval of a chair and a hair-washing bowl is narrow, there existed a problem that it was difficult to perform the treatment from back in the state where the person to be treated is sitting.

  The present invention is intended to solve the above-mentioned problems, and the purpose of the present invention is to display the treatment so that the distance between the backrest and the hair-washing bowl can be sufficiently maintained in the treatment by the subject in the sitting state. It is intended to provide a lifting apparatus for a hairdressing and beauty chair that can be operated from the back of the person and the upper end of the backrest can be positioned close to the hair-washing bowl with the backrest lying down.

  The lifting device for a barber / beauty chair according to the present invention achieves the above-described object, and the means of claim 1 constitutes a parallel link with a main link bracket and a sub link bracket erected on a base. A main link pivotally supported by the main link bracket and a sublink pivotally supported by the sublink bracket; a hydraulic cylinder having one end pivotally supported by the base and the other end pivotally supported by the main link; and one end A link link pivotally supported by the main link and the other end pivotally supported by the sub-link, a backrest link that shifts due to the transition of the sublink, and a fixed link that is pivotally supported by the upper end of the backlink link. An attached backrest, a seat that moves up and down by the change of the main and sublinks, and a backrest base that is integrally attached to the seat and pivotally supports the lower portion of the backrest A pivot plate having one end pivotally supported at the pivot point of the backrest base material and the backrest and the other end attached to the backrest, and the main link is displaced by extension of the hydraulic cylinder, When the main link is changed, the connecting link is changed, so that the sub link is changed and the seat is raised, and when the sub link is changed, the backrest link is changed, so that the fixed link is in a prone direction. The rotation plate is changed by the change of the fixed link, and the backrest is laid down.

  According to a second aspect of the present invention, in the first aspect, the fixed link is formed with a link receiving portion in which a long hole is formed through a bent portion, and the guide is attached to the upper end of the backrest link. When a shaft is guided and a spring is stretched between the guide shaft and the back of the backrest, and foreign matter is caught between the upper part of the backrest and the hair-washing bowl in the backrest lying down operation The guide shaft moves in the elongated hole against the spring force of the spring, thereby reducing the load on the foreign matter sandwiched between the hair washing bowl and the backrest.

  According to a third aspect of the present invention, in the first aspect, a plurality of mounting holes for pivotally supporting the main link and the sublink are formed in the vertical direction of the main link bracket and the sublink bracket. By selecting and pivotally supporting the main link and the sub link, the initial height position of the seat and the reaching position of the upper back when the back is overturned and the upper end of the back when the back is overturned The position can be changed.

  As described above, according to the present invention, the main link is changed by extension of the hydraulic cylinder, the connecting link is changed by the change of the main link, the sub link is changed and the seat portion is raised. When the backrest link is changed by the change, the fixed link is changed in the prone direction, and the change of the fixed link changes the rotation plate so that the backrest is prone. In this case, the interval between the hair washing bowl and the backrest is large, so that it is easy for the practitioner to perform the operation, and the upper end of the backrest is close to the hair washing bowl in a state where the backrest is lying down. It becomes easy to do.

  Normally, the backrest does not come into contact with the hair washing bowl during the back lying down operation, but a foreign object (for example, a part of the body of the practitioner) is caught between the hair washing bowl and the upper end of the backrest. Even in such a case, the load on the foreign matter sandwiched between the hair-washing bowl and the backrest is reduced, so that the foreign matter can be prevented from being damaged.

  In addition, a plurality of mounting holes for pivotally supporting the main link and the sub link are formed in the vertical direction of the main link bracket and the sub link bracket, so that it matches the height of the hair washing bowl installed in a hairdressing salon etc. By selecting the mounting hole and pivotally supporting the main link and the sub link, the initial height position of the seat portion is changed, and the optimum position of the chair and the hair washing bowl can be set. It is what has.

It is a side view of the initial position which shows one Example of the raising / lowering apparatus of the barber / beauty chair which concerns on this invention. It is a side view of the state where the seat rose and the backrest was lying down. It is the perspective view seen from the back side in the state where the seat part went up and the backrest fell. It is the side view which showed only the link mechanism which raises / lowers the chair in an initial state. It is the side view which showed only the link mechanism which raises / lowers the chair in the state which raised the seat part in FIG.

Hereinafter, an embodiment of a lifting apparatus for a barber / beauty chair according to the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a base fixed to the floor of a hairdressing salon or the like, and a pair of left and right main link brackets on which the lower ends of a pair of left and right main links 5 that are one of parallel links are pivotally supported. 2 and a pair of left and right sublink brackets 2 on which the lower ends of a pair of left and right sublinks 6 as another parallel link are pivotally supported, and a pair of left and right cylinder brackets 4 on which one end of a hydraulic cylinder 7 is pivotally supported. Installed vertically.

  One end of the main link 5 is pivotally supported by a support shaft 2 a that connects between the main link brackets 2. The main and sub link brackets 2 and 3 and the cylinder bracket 4 are provided with a plurality of (three in the drawing) mounting holes 2a, 3a and 4a in the vertical direction.

  The upper end of the main link 5 is pivotally supported by a seat frame 8b suspended from the lower surface of the seat base 8a in the seat 8 of the chair. A protruding piece 5a is formed relatively above the main link 5, and a main link bar 5b is fixedly attached between the protruding pieces 5a.

  A ram mounting piece 5c for pivotally supporting the other end of the hydraulic cylinder 7 is fixedly attached to an intermediate portion of the main link bar 5b. Further, a connecting piece 5d is fixedly attached to a position in the vicinity of the ram attaching piece 5c and opposed to a connecting piece 6c attached to a sub link rod 6a described later, and a connecting link is attached to the connecting piece 5d. One end of 9 is pivotally supported.

  The upper end of the sub-link 6 is pivotally supported by another seat frame 8c that is suspended from the lower surface of the seat base 8a. Further, a sub link rod 6a is fixedly attached between the sub links 6. A backrest link piece 6b for supporting a lower end of a backrest link 12 described later is fixedly attached to an intermediate portion of the sublink rod 6a, and one end of the main link link 6a is connected to the main link. A connecting piece 6c for supporting the other end of the connecting link 9 supported by the connecting piece 5d of the link bar 5b is fixedly attached.

  Reference numeral 10 denotes a backrest, which is rotatably supported by an L-shaped backrest support plate 10a fixed to the sheet base material 8a. In addition, a backrest rotating plate 10c, which is fixed to the backrest base material 10b at one end, is pivotally supported on the rotation shaft portion of the backrest support plate 10a. And when the backrest 10 is in an upright state, the fastening portion of the backrest support plate 10a with the backrest base material 10b is far from the shaft fulcrum with the rotating plate 10c. The lower part of the backrest 10 is located behind the sheet base material 8a.

  Reference numeral 11 denotes a fixed link attached to the front side of the portion of the backrest 10 where the rotating plate 10b is attached, and the other end is linked via a bent portion 11a so as to be along the back surface of the backrest 10. The receiving part 11b is integrally formed. A long hole 11c is formed in the link receiving portion 11b along the longitudinal direction.

  12, the lower end is pivotally supported by the sub-link rod 6a, and the upper end is a backrest link to which a guide shaft 12a slidable in the elongated hole 11c is attached. It is located in the bent portion 11a of the long hole 11c at the time of overturning. Reference numeral 13 denotes a pair of springs having one end supported on the back surface of the backrest 10 and the other end locked to the guide shaft 12a.

Next, the operation in which the seat 8 moves up and down based on the above configuration will be described with reference to FIGS. 4 and 5 showing only the link mechanism below the seat.
In FIG. 4, in the state where the seat 8 is lowered and the backrest is erected (hereinafter referred to as an initial position), although not shown, a foot pedal for raising the seat 8 and a lift installed on the side of the backrest When the switch is operated, oil is injected into the hydraulic cylinder 7 and the ram is extended.

  When the ram is extended, the shaft fulcrum a with the ram mounting piece 5c is pushed up, so that an upward force acts on the main link bar 5b to which the ram mounting piece 5c is fixed. Here, the main link bar 5b is fixedly attached to the main link 5, and the lower end of the main link 5 is pivotally supported by the main link bracket 2, so that the main link 5 is rotated clockwise at the pivot point b. It is rotated.

  When the main link 5 is rotated in the clockwise direction, the connecting link 9 pivotally supported by the connecting piece 5d of the main link bar 5b is pushed rightward, so that the other end of the connecting link 9 and the connecting piece 6c. The force which tries to rotate the shaft fulcrum c is clockwise.

  When this clockwise rotating force acts on the shaft fulcrum c, a force for moving the sub link rod 6a attached with the connecting piece 6c in a fixed state acts on the sub link rod 6a. Therefore, the sublink 6 to which the sublink rod 6a is fixed is rotated clockwise about the pivot point d with the sublink bracket 3.

  As described above, when the main link 5 and the sub link 6 constituting the parallel link are rotated in the clockwise direction, the seat frame 8a on which the main link 5 is pivotally supported by the pivot point e and the sub link 6 are pivoted. The seat frame 8b pivotally supported by f is pushed up obliquely backward (in the upper right direction in the drawing).

  When the practitioner determines that the height of the seat portion 8 that is pushed up obliquely rearward has reached the height position for washing the seated patient, the foot pedal The seat 8 stops at a desired position by operating the switch and stopping the supply of oil to the hydraulic cylinder 7. Since the oil in the hydraulic cylinder 7 is discharged by selecting the lowering operation in order to lower the seat 8 in the raised position, it is lowered by the operation opposite to the operation described above, and is moved to the initial position. Return to.

Next, in the above description of the operation, an operation in which the backrest 10 falls down as the seat rises will be described.
When the sub link rod 6a is rotated clockwise, the backrest link piece 6b fixed to the sublink rod 6a is shifted obliquely upward, so that the pivot point g with the backlink link piece 6b is increased. As a result, the backrest link 12 moves obliquely upward.

  By this movement, the guide shaft 12a attached to the upper end of the backrest link 12 rises and acts to push up the bent portion 11a of the long hole 11c of the fixed link 11. Here, the backrest 10 is Since it is pivotally supported at the pivotal support point h with the backrest support plate 10b, it shifts in the lying down direction.

  When the backrest 10 shifts in the overturning direction, the backrest 10 is overturned because the rotating plate 10c is pivotally supported at the pivot point h.

  Further, when a foreign object is caught between the tip of the backrest 10 and the hair washing bowl while the backrest 10 is lying down, the guide shaft 12a moves in the long hole 11c of the fixed link 11. Thus, since the spring force of the spring 13 acts as a reaction force against the load of the backrest 10 and the leaning load of the patient, the pinching of the foreign matter with a strong force is reduced.

  When the shampooing operation is completed and returned to the initial state, the backrest 10 is brought into an upright state by performing the above-described lowering operation of the seat portion and by the operation opposite to the above description.

  The mounting holes 2a, 3a, 4a provided in the main and sub link brackets 2, 3 and the cylinder bracket 4 in the vertical direction are different in the height of the hair washing bowl installed in the hairdressing salon. By selecting the mounting holes 2a, 3a, 4a according to the height of the hair washing bowl and attaching the main link bracket 2, the sub link bracket 3 and the cylinder bracket 4a, the height of the initial position of the chair is different, When the backrest 10 is lying down, the tip height of the backrest 10 and the height of the hair-washing bowl can be matched.

  In the drawings of FIGS. 1 to 3 described above, a potentiometer 14 is attached in the vicinity of the sub-link bracket 3. A meter link 15 is attached to the rotary shaft of the potentiometer 14 to change the resistance value by the vertical movement of the seat.

  That is, the meter link 15 includes a first link 15a having one end attached to the rotary shaft of the potentiometer 14, a second link 15b having one end pivotally supported by the sub link 6, and the first and second links 15a and 15b. It is comprised from the 3rd link 15c which connects between. Then, when the sub link 6 changes, the second, third, and first links change, and the resistance value of the potentiometer 14 changes.

  Using this change in resistance value, the auto-return switch is operated to return the ascending position (backrest and prone) to the initial position, or the preset switch is operated to set the seat 8 previously set by the operator. It automatically shifts to the height position (back lying position).

DESCRIPTION OF SYMBOLS 1 Base 2 Main link bracket 3 Sub link bracket 5 Main link 6 Sub link 7 Hydraulic cylinder 8 Seat part 9 Connection link 10 Backrest 11 Fixed link 12 Backrest link 13 Spring

Claims (3)

  A main link bracket and a sub link bracket that are erected on a base; a main link that is pivotally supported on the main link bracket that constitutes a parallel link; and a sublink that is pivotally supported on the sub link bracket; and A hydraulic cylinder having one end pivotally supported and the other end pivotally supported by the main link; one end pivotally supported by the main link and the other end pivotally supported by the sublink; and a change of the sublink. A backrest link that changes, a backrest to which a fixed link on which an upper end of the backrest link is pivotally attached is attached, a seat that moves up and down by the change of the main and sublinks, and the seat A backrest base member that is attached and pivotally supports a lower portion of the backrest, and a rotating plate having one end pivotally supported at a pivot point of the backrest base material and the backrest and the other end attached to the backrest The main link is changed by extension of the hydraulic cylinder, the connection link is changed by change of the main link, the sub link is changed and the seat is raised, When the backrest link is changed by the change, the fixed link is changed in the overturning direction, and the rotation plate is changed by the change of the fixed link so that the backrest is overturned. Lifting device for barber / beauty chair.   The fixed link is formed with a link receiving portion formed with a long hole through a bent portion, a guide shaft attached to the upper end of the backrest link is guided, and the guide shaft and the backrest are guided. When a foreign object is caught between the upper part of the backrest and the hair-washing bowl in the overturning operation of the backrest, the guide shaft moves through the elongated hole and the spring 2. The lifting device for a hairdressing and beauty chair according to claim 1, wherein a load applied to a foreign object sandwiched between the hair washing bowl and the backrest is reduced by moving against a spring force.   Forming a plurality of mounting holes for pivotally supporting the main link and the sublink in the vertical direction of the main link bracket and the sublink bracket, and selecting the mounting hole to pivotally support the main link and the sublink. Then, the initial height position of the seat and the reach position of the upper back when the back is overturned and the upper position of the back when the back is overturned can be changed. A lifting apparatus for a barber / beauty chair according to 1.

Images