CN2129097Y

CN2129097Y - Healthcare linkage chair

Info

Publication number: CN2129097Y
Application number: CN 91230445
Authority: CN
Inventors: 张铁恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-02
Filing date: 1991-11-02
Publication date: 1993-04-07
Anticipated expiration: 2001-11-02

Abstract

The utility model relates to a healthcare linkage chair, comprising a support bracket 6, a seat plate 14 and a backrest 1. The proper height of the backrest is provided with a soft cushion 7, and the shape of the front curved surface of the soft cushion is coincident with the physiological degree of curve of the lumbar vertebra of the human body. The height is adjusted by a pin 2 and a slot 3 between the soft cushion and the backrest, and the backrest 1 and the seat plate 14 are respectively hinged with the support bracket 6. A support spring 15 is arranged between the front end of the seat plate and the support bracket, and a linkage device is arranged between the backrest and the cushion. The inclination angle of the backrest of the chair can change with the sitting posture of the human body, to make the soft cushion attached to the waist of the human all the time.

Description

Healthcare linkage chair

The utility model is the chair about family expenses or office, belongs to furniture.

Current chairs mostly is the plane vertical backrest, the characteristics that this backrest can not fine adaptation human spine physiological bending, only straight sit the back by the time just contact human body back, and the waist contact-making surface is little, when bending over one's desk working, current chairs all can not provide supporting to waist.This chair of long-time use can make lumbar vertebrae, and over-burden, the waist muscle anxiety, song disappears before easily making lumbar vertebrae physiology, and the ligament at backbone rear is squeezed and elongates, and causes back fatigue easily, even the initiation lumbar muscle strain, pain in the back illness such as osteoproliferation and interverbebral disc are outstanding.

The purpose of this utility model provides a kind of chair with health role to waist; its backrest meets the physiological requirements of human spine curvature, and can change the inclination angle with the change of human body sitting posture automatically, to support and to protect waist all the time effectively; slow down fatigue, disease preventing and treating.

The utility model interlock nursing chair comprises bearing support, seat and backrest, it is characterized in that, on the suitable height of backrest cushion is housed, the front curve shape of cushion conforms to the physiology curvature of human body lumbar vertebrae, protuberance can be butted between third and fourth lumbar vertebrae and be advisable before the height of cushion, this height is regulated by the pin between cushion and the backrest, groove syndeton, backrest and seat are hinged with bearing support respectively, be provided with support spring between seat front end and the bearing support, when seat does not bear a heavy burden, lift up certain angle on the front end.Be provided with linkage between backrest and the seat, this device can be structures such as extension spring or lever interlock.The effect of linkage is that the degree that leans forward of backrest is changed with the sitting posture of human body, promptly with human body lean forward and before revolve, especially when bending over one's desk working, the backrest cushion supporting waist of fitting.The lower end of backrest is provided with back-moving spring, be used to lean forward and reset, being provided with the U-shaped reed simultaneously, mainly is that position-limiting action is played at the inclination angle of backrest, when people's trunk bending backwards, backrest revolves backward, the U-shaped reed compressive deformation of its lower end, when reed deformation reached capacity, backrest reached maximum back rake angle, generally be advisable with 20 °, this angle realizes by the U-shaped reed of selecting certain tension force and shape for use.The backrest cushion outsourcing breathable fabric of this nursing chair, inside is followed successively by from front to back: be Chinese herbal medicine layer, the sponge filling bed of carrier with the wheat straw, back space can be installed the electromassage magnetotherapy apparatus and connect battery casket and switch.

In sum, the backrest cushion of the utility model interlock nursing chair is located at the lumbar vertebrae height, its shape meets the physiology curvature of human body lumbar vertebrae, can share and strengthen of the supporting of human lumbar song preferably to upper part of the body gravity, alleviate lumbar vertebrae pressure and waist muscle anxiety, Chinese herbal medicine and electromassage magnetotherapy apparatus in the cushion all have the supplemental treatment effect to waist.The linkage of this chair can make inclination of the seat backrest change with sitting posture, no matter is to bend over the desk or face upward and lean on, and backrest cushion all can support and protect waist effectively.

Below in conjunction with description of drawings embodiment of the present utility model.

Fig. 1,4, the 5th, three example structure schematic diagrames of the utility model interlock nursing chair.

Fig. 2 and Fig. 3 are respectively the side sectional view and the vertical views of cushion.

Fig. 6 is the enlarged drawing of limit angle resetting means I structure among Fig. 1,4,5.

Fig. 7 is the structural representation of tension regulator 5 among Fig. 1,4.

As shown in the figure, the utility model interlock nursing chair has bearing support 6, seat 14 and backrest 1, backrest is hinged with hinge 8 and bearing support, seat is hinged with rotating shaft 9 and bearing support, be provided with support spring 15 between seat and the bearing support, cushion 7 is arranged on the backrest, be connected with groove 3 with pin 2 between cushion and the backrest, and adjustable-height.The structure of cushion such as Fig. 2 and Fig. 3, the surface is a breathable fabric 17, and there are Chinese herbal medicine and wheat straw layer 18 in inside, and sponge filling bed 19 is provided with electromassage magnetotherapy apparatus 21 and battery casket 22 in the back space, and switch 20 is equipped with at the back back side.

Among Fig. 1 embodiment, to be two ends be connected extension spring 11 between backrest and the seat with steel wire with linkage, the pulley 4 that the rear end steel wire 10 of extension spring is walked around on the backrest 1 links to each other with a tension regulator 5, the front end steel wire 12 of extension spring is walked around pulley 13 and is linked to each other with press rods 16 on the seat, and seat 14 is by press rods 16 compression support springs 15.When seat front end pressurized, the seat backspin, support spring 15 is compressed, and extension spring 11 is stressed, makes backrest rotate to a certain inclination angle forward, and the tension force of lifting up angle and extension spring on the size of top rake and the seat is relevant, and this tension force can be regulated by tension regulator 5.The lower end of backrest is provided with the U-shaped reed 29 at back-moving spring 30 and limit angle, and the former effect is that the backrest that leans forward is resetted, and the latter is the hypsokinesis and the forward leaning angle of restriction backrest, and its annexation is seen Fig. 6.U-shaped reed 29 is integrally welded with hinge 31, and back-moving spring 30 is connected between bearing support and the U-shaped reed.

Among Fig. 4 embodiment, the slip ring 23 of extension spring 11 lower end steel wires 12 socket-connects with the slip ring groove 24 of seat side, and slip ring can move forward and backward in the slip ring groove, and the last end structure of extension spring is identical with Fig. 1.

Fig. 5 embodiment has adopted lever principle to realize the interlock purpose, it by the stayed masts 25 that extend from seat 14 back and be connected stayed mast 25 and the U-shaped reed between top power bar 26 form, it is the rotating lever of fulcrum that seat 14 forms with rotating shaft 9 with stayed mast, when the seat pressurized, the stayed mast 25 of its rear end upwards acts on top power bar 26, U-shaped reed 29 is subjected to top power bar effect, move upward and make hinge rotation opened with certain angle, backrest i.e. rotation inclination forward, rotating shaft 9 links to each other with 27 with elongated slot 28 between seat and bearing support, regulate the tie point position of rotating shaft 9 in two elongated slots, promptly changed position of the fulcrum, lever arm of force is changed and reached the purpose of regulating the backrest top rake.

Fig. 7 has showed the structure of tension regulator 5 among Fig. 1,4, it is to slide outside tubular body 33 by a sliding sleeve 32, and be stuck in some grooves 34 fixing, the inner core of sliding sleeve links to each other with steel wire 10, by the groove position of conversion clamping on main body, realize steel wire is reached the tension force of the extension spring that links to each other with steel wire.

Claims

1, interlock nursing chair, comprise bearing support 6, seat 14 and backrest 1, it is characterized in that on the suitable height of backrest cushion 7 being housed, the front curve shape of cushion conforms to the physiology curvature of human body lumbar vertebrae, and the height of cushion is regulated by the pin between cushion and the backrest 2, groove 3 syndetons, and backrest 1 is hinged with bearing support 6 respectively with seat 14, be provided with support spring 15 between the front end of seat and the bearing support, be provided with linkage between backrest and the cushion.

2,, it is characterized in that the lower end of backrest is provided with back-moving spring 30 and U-shaped reed 29 as the described interlock nursing chair of above-mentioned claim 1.

3, as above-mentioned claim 1 or 2 described interlock nursing chair, it is characterized in that cushion outsourcing breathable fabric 17, inside is followed successively by: the Chinese herbal medicine layer 18, the sponge filling bed 19 that with the wheat straw are carrier.

4, as the described interlock nursing chair of above-mentioned claim 3, it is characterized in that linkage is two ends and is connected extension spring 11 between backrest and the seat with steel wire, the rear end steel wire 10 of extension spring is walked around pulley 4 and is linked to each other with a tension regulator 5, the front end steel wire 12 of extension spring is walked around pulley 13 and is linked to each other with press rods 16 on the seat 14, and seat is by press rods compression support spring 15.

5, as the described interlock nursing chair of above-mentioned claim 3, it is characterized in that linkage is two ends and is connected extension spring 11 between backrest and the seat with steel wire, the upper end steel wire 10 of extension spring is walked around pulley 4 and is linked to each other with a tension regulator 5, and the slip ring 23 of the lower end steel wire 12 of extension spring socket-connects with the slip ring groove 24 of seat side.

6, as the described interlock nursing chair of above-mentioned claim 3, it is characterized in that linkage by the stayed mast 25 that extends back from seat 14 and be connected stayed mast and the U-shaped reed between top power bar 26 form.