CN201139254Y

CN201139254Y - Office chair for mid-day break

Info

Publication number: CN201139254Y
Application number: CNU2007201386654U
Authority: CN
Inventors: 林易峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-12
Filing date: 2007-08-12
Publication date: 2008-10-29
Anticipated expiration: 2017-08-12

Abstract

The utility model relates to a chair, in particular to an office chair for noon break. A backrest adjusting mechanism is arranged under the back portion of a cushion, and a feet placement device which can be slid inwards or outwards is arranged under the cushion. The structure of the office chair is as below: the two sides under a front end of the cushion are provided with a group of parallel and longitudinal slide sleeves to be hinged with two front chair legs of a chair frame; the hinge points are provided with steel ball spring positioning devices; two horizontal longitudinally-sliding rods on two sides of the feet placement device frame can slide forwards and backwards in the feet placement device frame; front ends of the two sliding rods are connected with transverse rods under which supporting legs are arranged; the transverse rods are connected with a feet cushion; the structure of a backrest is like a lever; a supporting point is hinged with the back portion of the chair frame, and a torsion spring enables the backrest to have a trend to rotate close to the human body; a resistance arm is positioned under the supporting point; an end of the resistance arm is hinged with a connecting rod with a plurality of holes, while the other end of the connecting rod is sleeved in a slide groove; the slide groove can rotate around a fixed and transverse hollow shaft under a chair seat; a shaft is arranged in the hollow shaft, and a spring is arranged in the hollow shaft to push one end of the shaft into a hole of the connecting rod; the angle of the backrest is fixed, and the change of an insertion hole can change the angle of the backrest, so that a person in the office can take a nap in a recumbent way.

Description

A kind of lunch break office chair

Affiliated technical field

The utility model relates to a kind of chair, especially a kind of lunch break office chair.

Background technology

At present, known office chair can only be sat and can not recline, and clerical workforce's lunch break condition preferably can not be provided.

Summary of the invention

In order to overcome the deficiency that existing office chair can not be reclined, the utility model provides a kind of dual-purpose office chair, can not only sit and can provide easily the function of the lunch break of reclining.

The technical scheme that its technical problem that solves the utility model adopts is: chair frame rear portion is a backrest, on the chair frame cushion is arranged, the backrest angle governor motion is arranged under the cushion rear portion, chair frame bottom four chair sole ends are installed universal wheel, have one can slip into the foot rest device that skids off under the cushion, its structure is that both sides have one group of vertical sliding sleeve of level and chair frame two front chair legs hinged under the cushion front end, there is the steel ball and spring locator hinged place, the vertical slide bar of two levels of foot rest device framework both sides can slide front and back therein, and one group of axial location hole of steel ball and spring locator and slide bar side cooperates the location.Two slide bar front ends connect cross bar, and there is leg the cross bar below, and there is vertical wheel the leg lower end, connects foot pad on the cross bar, and the foot pad framework is a planar structure, and being connected with upset and skidding off two kinds of frame modes of cross bar: the upset mode is to be connected with hinge between it.The mode of skidding off is that vertical sliding sleeve is housed on cross bar, and foot pad vertically front and back slides.The stop behind the low-angle of leaning forward of hinged convertible leg under the cross bar, convertible leg lower end, spring is connected below the pin joint of the front portion of cross bar and convertible leg.One of governor motion of backrest angle, the structure of backrest such as lever, hinged and the rotation trend that has torsionspring that the oriented human body of backrest is pressed close in fulcrum and chair frame rear portion, fulcrum is above to be backrest, fulcrum is following to be resistance arm, the connecting rod of the hinged band porous of resistance arm end, the connecting rod other end is enclosed within the chute, chute can rotate around the hollow shaft of next fixed lateral of seat support, have one in the hollow shaft, have spring that one end of axle is headed in the hole of connecting rod in the hollow shaft, the angle of backrest is fixed, extract axle out, change the angle that jack can change backrest.Two of the governor motion of backrest angle, the structure of backrest is the same, resistance arm end hinged one connecting rod with a plurality of holes, the hinged place has a torsionspring that the free end of connecting rod is embedded in next fixed axis of seat support downwards, there is an elongated slot holes top, and an end of a horizontal lever inserts in the elongated slot, depresses the other end of lever, liftable connecting rod changes the angle that can change backrest that cooperates of holes and fixed axis.

The beneficial effects of the utility model are, can provide the function of lying easily when the function of seat is provided, and are simple in structure.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is vertical sliding sleeve and steel ball and spring locator.

Fig. 3 is the convertible leg and skids off the formula foot pad.

Fig. 4 is one of backrest governor motion.

Fig. 5 is two of a backrest governor motion.

Quick locking system 20. torsionsprings of the horizontal rotating shaft of the vertical sliding sleeve 15.16. back rest of the vertical sliding sleeve of 1. chair framves, 2. backrests, 3. backrest governor motions, 4. cushions, 5. springs 6. 7. slide bars 8. locators 9. locating holes 10. cross bars 11. legs 12. foots pad 13. hinges 14. 17. backrest dividers 18. 19. 21 one-directional rotation mechanisms among the figure.

The specific embodiment

In Fig. 1, chair frame (1) rear portion is backrest (2), cushion (4) is arranged on the chair frame (1), cushion (4) has backrest angle governor motion (3) under the rear portion, chair frame (1) bottom four chair sole ends are installed universal wheel, have one can slip into the foot rest device that skids off under the cushion (4), its structure is that both sides have one group of vertical sliding sleeve of level (6) and chair frame (1) two front chair leg hinged under cushion (4) front end, there is steel ball and spring locator (8) hinged place, as Fig. 2, the vertical slide bar of two levels (7) of foot rest device framework both sides can slide front and back therein, and steel ball and spring locator (8) cooperates the location with slide bar (7) one group of axial location hole of side (9).Two slide bars (7) front end connects cross bar (10), there is leg (11) cross bar (10) below, there is vertical wheel leg (11) lower end, cross bar (10) is gone up and is connected foot pad (12), foot pad (12) framework is a planar structure, with being connected with upset and skidding off two kinds of frame modes of cross bar (10), the upset mode is to connect with hinge (13) between it, the mode of skidding off is that vertical sliding sleeve (14) is housed on cross bar (10), foot pad (12) vertically front and back slides, cross bar (10) is hinged convertible leg (24) down, the stop behind the low-angle of leaning forward of convertible leg (24) lower end, spring (5) is connected below the pin joint of the front portion of cross bar (10) and convertible leg (24), as Fig. 3.One of governor motion of backrest (2) angle is as Fig. 4, the structure such as the lever of backrest (2), hinged and the rotation trend that has torsionspring that the oriented human body of backrest (2) is pressed close in fulcrum and chair frame rear portion, fulcrum is above to be backrest (2), fulcrum is following to be resistance arm (15), the connecting rod (16) of the hinged band porous of resistance arm (15) end, connecting rod (16) other end is enclosed within the chute (17), chute (17) can rotate around the hollow shaft (18) of next fixed lateral of seat support, have in the hollow shaft (18) one (19), there is spring that one end of axle (19) is headed in the hole of connecting rod (16) in the hollow shaft (18), the angle of backrest (2) is fixed, extract axle (19) out, change the angle that jack can change backrest (2).The governor motion of backrest (2) angle two as Fig. 5, the structure of backrest (2) is the same, resistance arm (15) end hinged one connecting rod (20) with a plurality of holes, the hinged place has a torsionspring that the free end of connecting rod (20) is embedded in next fixed axis of seat support (21) downwards, there is an elongated slot (22) the holes top, one end of one horizontal lever (23) inserts in the elongated slot (22), depress the other end of lever (23), liftable connecting rod (20) changes the angle that can change backrest (2) that cooperates of holes and fixed axis (21).

Claims

1. lunch break office chair, chair frame rear portion is a backrest, on the chair frame cushion is arranged, and the backrest angle governor motion is arranged under the cushion rear portion, chair frame bottom four chair sole ends are installed universal wheel, have one can slip into the foot rest device that skids off under the cushion, it is characterized in that:

Both sides have one group of vertical sliding sleeve of level and chair frame two front chair legs hinged under the cushion front end, there is the steel ball and spring locator hinged place, the vertical slide bar of two levels of foot rest device framework both sides can slide front and back therein, one group of axial location hole of steel ball and spring locator and slide bar side cooperates the location, and two slide bar front ends connect cross bar, and there is leg the cross bar below, there is vertical wheel the leg lower end, connect foot pad on the cross bar, the foot pad framework is a planar structure, connects with hinge between it; The structure of backrest such as lever, fulcrum and chair frame rear portion are hinged and torsionspring arranged, fulcrum is above to be backrest, fulcrum is following to be resistance arm, the connecting rod of the hinged band porous of resistance arm end, the connecting rod other end is enclosed within the chute, and chute can rotate around the hollow shaft of next fixed lateral of seat support, there is one in the hollow shaft, has spring that one end of axle is headed in the hole of connecting rod in the hollow shaft.

2. a kind of lunch break office chair according to claim 1, it is characterized in that: the mode foot pad of skidding off is a hinged convertible leg under cross bar, the stop behind the low-angle of leaning forward of convertible leg lower end, spring is connected below the pin joint of the front portion of cross bar and convertible leg.

3. a kind of lunch break office chair according to claim 1, it is characterized in that: two of the governor motion of backrest angle is backrest resistance arm end hinged one connecting rods with a plurality of holes, the hinged place has a torsionspring that the free end of connecting rod is embedded in next fixed axis of seat support downwards, there is an elongated slot holes top, and an end of a horizontal lever inserts in the elongated slot.