Rotary chair chassis
A technology for chassis and swivel chairs, which is applied to chairs, deck chairs, and chairs with vertically adjustable seats, etc. It can solve the problems of position deviation and affecting comfort, and achieve the effect of avoiding friction and good versatility
Active Publication Date: 2015-03-04
UE FURNITURE CO LTD
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Problems solved by technology
When the user sits on the seat equipped with this swivel chair tray, from sitting upright to leaning backward, the position of the seat waist supporting the human body will shift, affecting comfort
Method used
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[0029] Example: A swivel chair chassis, such as Figure 1 ~ Figure 3 As shown, it includes a bottom plate 2 connected to the air rod 1. The bottom plate 2 supports the entire chassis, seat and backrest; on the left and right sides of the bottom plate 2, a support plate 3 is provided along the vertical direction. The bottom plate 2 is fixedly connected, and a seat plate 4 for mounting the seat is arranged horizontally above the two support plates 3. The front and back sides of the bottom plate 2 are respectively provided with a support frame 5 and a backrest bracket 6 that are inclined to the front of the swivel chair. The lower part of the frame 5 and the backrest bracket 6 are hinged with two support plates. The front and rear sides of the seat plate 4 are hinged with the top of the support frame 5 and the backrest bracket 6 respectively. The backrest bracket 6 is connected to the backrest through the connecting steel plate 12, and the backrest support The frame 6 is connected ...
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The invention discloses a rotary chair chassis comprising a base plate connected with an air rod, wherein the left side and right side of the base plate are respectively provided with a supporting plate in a vertical direction, the supporting plates are fixedly connected with the base plate, a seat plate is arranged above the two supporting plate in a horizontal direction and is used for mounting a chair, the front side and back side of the base plate are respectively provided with a supporting frame and a backrest support inclining to the front part of the rotary chair, the lower parts of the supporting frame and the backrest support are hinged with the two supporting plate, the front side and back side of the seat plate are respectively hinged with the tops of the supporting frame and the backrest support, and the backrest support is connected with an elastic reset device used for keeping the backrest support to incline towards the front part of the rotary chair. The invention provides a gravity self-adaptive rotary chair chassis without manual regulation and with great human-friendliness and universality; and according to a rotary chair provided with the rotary chair chassis disclosed by the invention, the tilting return force of a backrest is correspondingly matched with the weight of a person, the heavier the person is, the large the tilting return force of the backrest automatically is, and the rotary chair chassis can be used for assisting a user in returning and getting up.
Description
Technical field [0001] The invention relates to a swivel chair, in particular to a swivel chair chassis. Background technique [0002] The swivel chair chassis, also known as the swivel chair tray, is an important component installed under the swivel chair seat cushion. The lifting of the seat cushion and the tilt angle adjustment of the backrest are all done by the chassis. [0003] The current swivel chair tray is generally composed of upper tray, lower joist, rotating shaft, spring device and other parts. After the upper turntable is fixed to the back of the swivel chair seat, the swivel chair can be properly tilted around the rotating shaft and can be actively returned to enable users There is a sense of comfort. For example, the Chinese patent discloses a tray (patent number: 02287885.8), which mainly includes a bottom plate, a movable seat, a tapered tube and an adjustment device. The movable seat is movably connected to the bottom plate, and the tapered tube of the air pres...
Claims
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IPC IPC(8): A47C7/00A47C3/18A47C1/032
CPCA47C1/03238A47C1/03255A47C1/03272A47C1/03294A47C1/03274
Inventor 阮正富何基吴晓欣
Owner UE FURNITURE CO LTD