JPH07308344A - Legless chair with lifting function - Google Patents

Abstract

PURPOSE:To enables effective attendance required in standing or sitting for aged persons or the like who live daily on tatami (rush) mats and on a floor by providing a lifting device driven electrically at the bottom part of a legless chair. CONSTITUTION:A legless chair is used in a lowered state during the normal life and when the user stand up, a lifting switch button 4A of a lift switch plate 4 is depressed as mounted on an arm rest 3. As a result, a drive motor provided on a driver section 15 is operated and a geared shaft 7 is rotated through a pinion gear. Then, a lift arm drive plate 10 is moved backward through a lower guide rail 6 to lift a legless chair part with the user thereon through a lift arm 5 having a lower end part thereof pivoted on a lift arm drive plate 10. When a sitting surface 2 of the legless chair part reaches a desired height, a hand is released from the lift switch button 4A to stop the drive motor. This constitution allows the raising of the position of the waist of the user thereby facilitating his standing from the legless chair.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elderly person who has a daily life on a tatami mat or on a floor, and a person with a lower limb disorder (hereinafter abbreviated as elderly person).
The present invention relates to a seat chair with an elevating function for assisting standing and sitting.

[0002]

2. Description of the Related Art Conventional chairs are used only for comfort, and lack of consideration for elderly people who have difficulty standing up or sitting due to aging or disability of the lower limbs. was there.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a seat chair with a lifting function that solves the above problems of the conventional seat chair.

[0004]

A seat chair with a lifting function according to the present invention which achieves the above object is characterized in that a lifting device driven electrically is provided at the bottom of the seat.

[0005]

Since the seat chair with the lifting function of the present invention is provided with the electric lifting device at the bottom of the seat chair, the elderly people with aging and disabilities of the lower limbs who live everyday on tatami mats or floors. When the person stands up, the seat chair portion is moved up electrically, and when the person sits down, the chair portion is moved down electrically, so that it is possible to assist the elderly person to stand up and sit down.

[0006]

EXAMPLE FIG. 1 shows an example of raising a chair, 1 is a backrest,
2 is a seat surface, 3 is an armrest, 4 is a lift switch plate, 4A is a lift switch button, 4B is a lift switch button, 5 is a lift arm, 6 is a lift arm lower guide rail, 7 is a geared shaft, and 8 is a geared shaft mount. Reference numeral 10 is a lift arm drive plate, 15 is a drive unit cover, 16A is a lift arm lower movement fulcrum, 17A is a lift arm lower fixed fulcrum, and 18 is a central hole. FIG. 2 shows an example of descending a chair. FIG. 3 is a perspective view showing an example of ascending a chair, 9 is a guide rail on the upper and lower arms, 11 is a drive motor, and 12
Is a pinion gear (large), 13 is a pinion gear (small), 1
6B is a lifting fulcrum upper moving fulcrum, and 17B is a lifting limb upper fixed fulcrum. FIG. 4 shows a state in which the ascending / descending function portion is ascending. FIG. 5 shows a cross section of an example of raising a seat chair, and 14 is a bottom rubber sheet. FIG. 6 shows a cross section of a seat descending example, and the armrest 3 can be raised upward so as not to get in the way when standing up and sitting down. FIG. 7 shows a plane of the bottom of the seat. In everyday life, the chair with a lifting function is used in a lowered state (Fig. 2), but when standing up, while pressing the lifting switch button 4A of the lifting switch plate 4 mounted on the armrest 3. The drive motor 11 operates, the pinion gear (small) 13 attached to the drive motor 11 rotates, and the meshed pinion gear (large) 12 rotates. The pinion gear (large) 12 is attached to the geared shaft 7, and the rotation of the pinion gear (large) 12 rotates the geared shaft 7. Center hole 1 of lifting arm drive plate 10
8 is provided with a screw thread, and the geared shaft 7 penetrating therethrough is meshed with the screw thread of the center hole 18 of the elevating arm plate 10. Both ends of the lift arm drive plate 10 are connected to the lift arm lower movement fulcrum 16A, and the rotation of the geared shaft 7 causes the lift arm drive plate 10 to move rearward. Since the lift arm drive plate 10 is connected to the lift arm lower movement fulcrum 16A, the lift arm 5 is actuated by the movement of the lift arm drive plate 10 so that the chair portions 1, 2, 3,
4, 4A, 4B, 9, 16B and 17B rise, and when the elevation switch button 4A is released at any height, the drive motor 11
Will stop and the ascent will also stop, making it easier to stand up. When lowering, the drive motor 11 rotates in the opposite direction to the rising direction while the down switch button 4B is being pressed, whereby the geared shaft 7 also rotates in the opposite direction to the rising direction, and the lifting arm drive plate is moved forward. Move to. By this motion, the chair portions 1, 2, 3, 4, 4A, 4B, 9, 16
When B and 17B descend, and when they descend completely, the drive motor 11 automatically stops and the descending ends. Although the embodiments have been described above, the present invention can have the following embodiments. (1) A hydraulic cylinder can be used for the mechanism for raising and lowering the seat portion. (2) Drive devices 7, 8 and 1 for raising and lowering the seat portion
0, 11, 12, 13, 15, 18 may be attached to the back side of the seat surface 2. (3) The lifting switch parts 4, 4A, 4B may be provided on either the left or right armrest 3. (4) The elevating switch does not have to be fixed to the armrest 3 in a remote control system.

[0007]

EFFECTS OF THE INVENTION The seat chair with the lifting function of the present invention is constructed as described above, and the seat chair is provided to stand or sit on the tatami mat or on the floor in daily life of the elderly or the like. It has the effect of assisting with the lifting function.

[Brief description of drawings]

FIG. 1 is a perspective view of a rising example.

FIG. 2 is a perspective view of a descending example.

FIG. 3 is a perspective perspective view of a rising example.

FIG. 4 is a perspective view of an example of a lifting device.

FIG. 5 is a side sectional view of a rising example.

FIG. 6 is a side sectional view of a descending example.

FIG. 7 is a plan view of a bottom device arrangement example.

[Explanation of symbols] 1 ... backrest 2 ... seat surface 3 ... armrest 4 ... elevation switch plate 4A ... elevation switch button 4B ... downswitch button 5 ... elevation arm 6 ... Elevating arm lower guide rail 7 ・ ・ ・ Geared shaft 8 ・ ・ ・ Geared shaft mount 9 ・ ・ ・ Elevating arm upper guide rail 10 ・ ・ ・ Elevating arm drive plate 11 ・ ・ ・ Drive motor 12 ・ ・ ・ Pinion gear (large) 13・ ・ ・ Pinion gear (small) 14 ・ ・ ・ Bottom rubber sheet 15 ・ ・ ・ Drive unit cover 16A ・ ・ Lifting arm lower movement fulcrum 16B ・ ・ Lifting arm upper movement fulcrum 17A ・ ・ Lifting arm lower fixed fulcrum 17B ・ ・ Lifting Arm upper fixed fulcrum 18 ・ ・ ・ Center hole

Claims (1)

[Claims] 1. A sitting chair with a lifting function, which has a lifting function.