CN200973524Y

CN200973524Y - Free chair

Info

Publication number: CN200973524Y
Application number: CN 200620132434
Authority: CN
Inventors: 杨东君
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-20
Filing date: 2006-08-20
Publication date: 2007-11-14
Anticipated expiration: 2016-08-20

Abstract

A free chair consists essentially of a foot frame, a leg frame, a seat frame, a back frame, a spring sheet, a regulator, a seat cushion and a back rest, wherein the foot frame, the leg frame, the seat frame and the back frame are hinged to form a Z shape to enable the leg frame to rotate relative to the foot frame, allow for the seat frame to rotate relative to the leg frame, and make it possible for the back frame to rotate relative to the seat frame; the spring sheet and the regulator are arranged on the hinge shafts respectively. The spring sheet is used for supporting gravity borne by the leg frame, seat frame and back frame during application. The regulator is used for regulating rotation frication force of the leg frame, seat frame and the back frame to maintain gravity of the user and spring force of the spring sheet in balance. The user can regulate chair height, inclining angle of the seat plan and elevation of the back rest according to requirement by changing sitting attitude, i.e. the user can change shape of the chair by applying force slightly to the chair while changing sitting attitude. The utility model completely solves the problems with conventional multifunctional chairs such as single regulating function and inconvenient regulation.

Description

Free chair

Affiliated technical field

The utility model relates to a kind of seat, particularly a kind of free chair that can make the free conversion sitting posture of the person of taking a seat.

Background technology

At present, can regulate the chair that changes sitting posture mainly is at Chair support, seat cushion and lean against between flexible connection is set, and adding spring and brake apparatus, have lifting and lean against adjustable function, thereby the user regulates chair height by manual control brake apparatus and leans against angle and obtains the in good time sitting posture that needs, the people needs bigger static support force when taking a seat for a long time, can subconsciously change sitting posture owing to physical fatigue, its change frequency be 10-20 minute once, the shape that different sitting postures need correspondingly be regulated chair adapts to, and the regulatory function of present adjustable multifunction chair is single and operation inconvenience, and this makes it can't really satisfy requirement and the needs of people to health in actual applications.

Summary of the invention

In order to solve the single and unhandy problem of adjusting of above regulatory function, the utility model provides a kind of free chair, this chair can not only make the person of taking a seat regulate the shape of chair as required, and the mode of regulating and process all be arbitrarily and easily, and promptly chair its shape when supporting human body gravity can change with the change of the person's of taking a seat sitting posture.

The utility model is achieved by following technical solution: chair is mainly by sufficient frame, the leg frame, mounting, back of the body frame, spring leaf, adjuster and seat cushion and composition such as lean against, its mesopodium frame, the leg frame, mounting and back of the body frame are hinged to " Z " font, be that sufficient frame and leg frame are hinged, leg frame and mounting are hinged, mounting is hinged with back of the body frame, the leg frame can be rotated with respect to sufficient frame, mounting can rotate with respect to the leg frame, back of the body frame can rotate with respect to mounting, simultaneously, on their hinged axles, be respectively equipped with spring leaf and adjuster, the effect of spring leaf is supporting leg frame respectively, the gravity of mounting and the carrying of back of the body frame, the effect of adjuster is to regulate control leg frame, the rotation friction of mounting and back of the body frame makes the elastic force of the person's of taking a seat gravity and spring leaf be in the state of relative equilibrium; Seat cushion is fixed on the mounting, leans against to be fixed on the back of the body frame, and head rest is fixed on the headstock.

Effect of the present utility model is, the user can regulate height and the inclination angle of seat surface and the elevation angle that leans against that changes chair as required, simultaneously its adjustment process is to be finished by the mode that the user changes sitting posture, and the user firmly can change the shape of chair a little when changing sitting posture.

Description of drawings

Below in conjunction with drawings and Examples this is suitable for novel being further described.

Fig. 1 is the utility model perspective view.

Fig. 2 is the utility model axle A part decomposition diagram.

Fig. 3 is the utility model axle B part decomposition diagram.

Fig. 4 is the utility model axle C part decomposition diagram.

Fig. 5 is the utility model embodiment perspective view.

1. sufficient framves among the figure, 2. leg frame, 3. mounting, 4. back of the body frame, 5. the headstock, 6. an A, 7. a B, 8. a C, 9. adjusting knob, 10. spring leaf A, 11. spring leaf B, 12. spring leaf C, 13. adjuster A, 14. adjuster B, 15. adjuster C, 16. packing ring A, 17. packing ring B, 18. packing ring C, 19. handrails, 20. seat cushions, 21. lean against 22. head rests

The specific embodiment

As Fig. 1, foot frame (1) is hinged by axle A (6) with leg frame (2), leg frame (2) can be rotated around axle A (6), on axle A (6), be provided with spring leaf A (10), spring leaf A (10) is used for supporting leg frame (2), be provided with adjuster A (13) on axle A (6), adjuster A (13) and the socket of axle A (6) row screw thread are provided with packing ring A (16) between adjuster A (13) and leg frame (2); Mounting (3) is hinged by axle B (7) with leg frame (2), on axle B (7), be provided with spring leaf B (11), spring leaf B (11) is used to support mounting (3), is provided with the adjuster B (14) that connects with the trip thread bush on axle B (7), is provided with packing ring B (17) between adjuster B (14) and mounting (3); Mounting (3) is hinged by axle C (8) with back of the body frame (4), on axle C (8), be provided with spring leaf C (12), spring leaf C (12) is used for supporting back of the body frame (4), on axle C (8), be provided with the adjuster C (15) that connects with the trip thread bush, be provided with packing ring C (18) between adjuster C (15) and mounting (3), handrail (19) is fixed on the two ends of a C (8); The headstock (5) is hinged with back of the body frame (4), and is provided with the adjusting knob (9) that connects with the trip thread bush on hinged axle.

As Fig. 2, interior hexagon Fixing shrink ring on the spring leaf A (10) partly adapts with the middle bigger outer hexagon of axle A (6) is capable, packing ring A (16) goes up less hexagonal part with axle A (6) and adapts, threaded portion on adjuster A (13) and the axle A (6) adapts, in addition, hinge portion at leg frame (2) is provided with arc convex, and arc convex adapts with the arc convex of being located on the spring leaf A (10), in order to the rotational angle of restriction leg frame (2).

As Fig. 3, spring leaf B (11) is fixed in the groove on the B (7), mounting (3) is hinged on the B (7), spring leaf B (11) is in the arc notch of mounting (3) hinged place, the rotational angle of mounting (3) is limited within the specific limits, the hinged place, upper end of leg frame (2) is made as the hexagon internal diameter, adapt with hexagonal part bigger on the axle B (7) and socket is fixed, be provided with the adjuster B (14) that connects with the trip thread bush at the two ends of axle B (7), be provided with packing ring B (17) between adjuster B (14) and mounting (3), the hexagon internal diameter of packing ring B (17) adapts with the less hexagonal part of being located on the B (7).

As Fig. 4, the lower end of back of the body frame (4) is hinged on a C (8) intermediate cylindrical part, the ring set of spring leaf C (12) lower end is fixed on the C (8), being located at spring leaf C (12) lower loop arc notch that puts and the arc convex of being located at back of the body frame (4) hinged place adapts, rotational angle in order to restriction back of the body frame (4), screw thread place on axle C (8) is provided with the adjuster C (15) that adapts with it, between adjuster C (15) and back of the body frame (4), be provided with packing ring C (18), hexagonal part the shortest on the hexagon internal diameter of packing ring C (18) and the axle C (8) adapts, the rear end socket of mounting (3) is fixed on the C (8), and handrail (19) socket is fixed on the two ends of a C (8).

As Fig. 5, seat cushion (20) is fixed on the mounting (3) with screw, leans against (21) and is fixed on the back of the body frame (4) with screw, and head rest (22) is fixed on the headstock (5) with screw.

Claims

1. free chair, mainly by sufficient frame, leg frame, mounting, back of the body frame, spring leaf, adjuster, packing ring and seat cushion, lean against, head rest and handrail form; It is characterized in that: sufficient frame, leg frame, mounting and back of the body frame are hinged to " Z " font, be that sufficient frame and leg frame are hinged, leg frame and mounting are hinged, mounting is hinged with back of the body frame, and on jointed shaft, be respectively equipped with spring leaf, adjuster and packing ring, seat cushion is fixed on the mounting, leans against to be fixed on the back of the body frame, and head rest is fixed on the headstock.

2. according to the said free chair of claim 1, it is characterized in that spring leaf is fixed on the jointed shaft.

3. according to the said free chair of claim 1, it is characterized in that the capable screw thread socket of adjuster and jointed shaft.

4. according to the said free chair of claim 1, it is characterized in that the interior hexagon of packing ring and the hexagonal part on the jointed shaft adapt,

5. according to the said free chair of claim 1, it is characterized in that being provided with arc notch or the arc convex that adapts with spring leaf in the hinged place of leg frame, mounting and back of the body frame.