CN203662312U

CN203662312U - Inclinable chair

Info

Publication number: CN203662312U
Application number: CN201420007956.XU
Authority: CN
Inventors: 李辉; 王晓进; 陈小圻
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-07
Filing date: 2014-01-07
Publication date: 2014-06-25
Anticipated expiration: 2024-01-07

Abstract

The utility model provides an inclinable chair which comprises front chair legs, rear chair legs, a chair surface, a backrest, support legs and connecting rods, wherein the rear chair legs, the backrest, the connecting rods and the support legs form a pivot four-bar mechanism, when the backrest moves backward, the connecting rods drive the support legs to rotate backward, the front chair legs are lifted from the ground when the gravity center of a human body moves backward, and the chair is supported by the rear chair legs and the support legs, so that the chair is stable and not prone to backward turnover.

Description

Tiltable seat

Technical field

The utility model relates to a kind of daily living article, particularly a kind of tiltable seat.

Background technology

At present, known seat great majority are upright, but while being sitting on chair, people like the two chair legs at perk front row, and row's chair leg rocks back and forth as fulcrum later, accidentally overturning backward.

Summary of the invention

For the problem in above-mentioned middle existence, the utility model proposes solution, its technical scheme is: a kind of tiltable seat is provided, and it is mainly made up of seat, front chair leg, back leg, supporting leg, dependence, connecting rod.Its connected mode is the inner side that is hinged on a pair of back leg upper end that leans on the both sides activity at middle part, the inner side of the middle-end that is hinged on back leg of one end activity of a pair of supporting leg, the both sides and the connecting rod that lean on lower end are movably hinged, and the other end of connecting rod is movably hinged with the inner side of supporting midleg; After above-mentioned connection, form four-bar linkage by back leg, dependence, connecting rod, supporting leg.The stopping means of four-bar linkage is to realize by the dependence positive stop on back leg top lean on spacing in the time that supporting leg is packed up; In the time that supporting leg launches, coordinated with the supporting leg positive stop at back leg middle part near the block of pivot by supporting leg realize spacing.When people backward arm-chair by time make to lean on and rotate backward, drives supporting leg perk backward by connecting rod, in the time moving after gravity center of human body before chair leg liftoff, carry out supporting chair by back leg and supporting leg, now seat inclination.

The beneficial effects of the utility model are: adopt after said structure owing to having increased a pair of supporting leg on back leg, the rotation of being leaned on by chair by quadric chain dexterously drives the rotation of supporting leg to reach the object of protection, seat is in the time receding, arrive and can realize back leg when certain angle and supporting leg carrys out supporting chair, make chair stablize, not worry overturning backward; In the time that chair is in upright arrangement, supporting leg is packed up the inner side that is positioned at back leg simultaneously, makes the simple and compact for structure of entirety.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated:

Fig. 1 is the upright perspective view of the utility model chair leg.

Fig. 2 is the perspective view that the utility model chair leg tilts.

Fig. 3 is the structural representation at another visual angle of the utility model chair leg inclination.

Fig. 4 is the schematic diagram of the front view of the utility model chair leg inclination.

Fig. 5 is the schematic diagram of the top view of the utility model chair leg inclination.

Fig. 6 is the B--B cutaway view of Fig. 5.

Fig. 7 is the schematic diagram of the right view of the utility model chair leg inclination.

1. seats in figure, 2. back leg, 3. leans on, 4. supporting leg, 5. connecting rod, 6. leans on positive stop, 7. supporting leg positive stop.

The specific embodiment

The inner side that chair leans on after chair drives supporting leg 4 that it is stowed in by connecting rod 5 by 3 vertically time in Fig. 1,2,3,4 drives the supporting leg 4 supporting leg perk that rotates backward by connecting rod 5 in the time that chair recedes by 3.

In Fig. 3,6 by back leg 2, lean on 3, concrete connected mode that connecting rod 5, supporting leg 6 form four-bar linkage is the inner side that is hinged on a pair of back leg 2 upper ends that leans on 3 both sides activity, the inner side of the middle-end that is hinged on back leg 2 of one end activity of a pair of supporting leg 4, the lower end and the connecting rod 5 that lean on 3 both sides are movably hinged, and the inner side, middle part of the other end of connecting rod 5 and supporting leg 4 is movably hinged; The stopping means of four-bar mechanism is to realize the spacing of dependence 3 by the dependence positive stop 6 on back leg 2 tops in the time that supporting leg 4 is packed up; In the time that supporting leg 4 launches, coordinated with the supporting leg positive stop 7 at back leg middle part near the block of pivot by supporting leg realize spacing.

In Fig. 7 when people backward arm-chair make to lean on 3 by 3 time and rotate backward, drive supporting leg 4 perk backward by connecting rod 5, in the time moving after gravity center of human body before chair leg liftoff, carry out supporting chair by back leg 2 and supporting leg 4, now seat 1 tilts.

Claims

1. tiltable seat is made up of front chair leg, back leg (2), seat (1), dependence (3), supporting leg (4), connecting rod (5), it is characterized in that: form four-bar linkage by back leg (2), dependence (3), connecting rod (5), supporting leg (4), leaning on (3) rotates backward, drive supporting leg (4) to rotate backward by connecting rod (5), carry out supporting chair by back leg (2) and supporting leg (4), now seat (1) tilts.

2. tiltable seat according to claim 1, it is characterized in that: by back leg (2), lean on (3), connecting rod (5), the connected mode of the four-bar mechanism that supporting leg (4) forms is for leaning on the inner side that is hinged on a pair of back leg (2) upper end of the both sides activity in the middle part of (3), the inner side of the middle-end that is hinged on back leg (2) of one end activity of a pair of supporting leg (4), the both sides and the connecting rod (5) that lean on (3) lower end are movably hinged, the inner side at the middle part of the other end of connecting rod (5) and supporting leg (4) is movably hinged.

3. tiltable seat according to claim 2, is characterized in that: the stopping means of four-bar linkage for being realized and leaned on the spacing of (3) by the dependence positive stop (6) on back leg (2) top in the time that supporting leg (4) is packed up; In the time that supporting leg (4) launches, coordinated with the supporting leg positive stop (7) in the middle part of back leg (2) near the block of pivot by supporting leg (4) realize spacing.