Automatically-adjusting waist-abutting device and rotary chair
A technology of automatic adjustment and support of the waist, which is applied to chairs, chairs, stools and other directions that can adjust the seat vertically, which can solve the problems of cumbersome and inconvenient manual adjustment and waist discomfort, and achieve the effect of outstanding function and simple structure.
Inactive Publication Date: 2013-09-18
林育文
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Problems solved by technology
If the waist support device is not adjusted properly, it will easily make the waist uncomfortable, sore, etc., but manual adjustment is cumbersome and inconvenient
Method used
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[0021] combine figure 1 , figure 2 and image 3 As shown, the present invention proposes a self-adjusting waist support device, which includes: a base 11 fixed by a swivel chair chassis; a support plate 10 fixed on the base 11 by a first pin 13 and a second pin 14 When the support plate 10 works, the first pin shaft 13 is used as the center of the circle, and the second pin shaft 14 connected to the elongated hole of the base 11 is used as a support point to rotate and move back and forth within a certain range; it is installed on the base 11 The bottom plate 12 on the side; the top waist adjustment structure arranged on the support plate 10 is connected.
[0022] Wherein, the top waist adjustment structure includes: the adjustment lever 4 connected on the support plate 10 through the lever fixed shaft 9; 2 two-way torsion springs 2; Torsion spring adjustment structure.
[0023] Specifically, the torsion spring adjustment structure includes: through the connector 1 and th...
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The invention discloses an automatically-adjusting waist-abutting device and a rotary chair, wherein the waist-abutting device comprises a base, a support plate, an angle adjuster, a connector, an adjusting lever, a waist-abutting plate and two bidirectional torsion springs sleeved on the connector. The tail ends of the two bidirectional torsion springs press on the angle adjuster. With a first pin shaft as the circle center and a second pin shaft as a support point, the support plate rotates and reciprocates within a certain range so as to drive the adjusting lever to move with a lever fixing seat serving as the center and a lever fixing pin as a support point. One end of the angle adjuster is driven by the adjusting lever to rotate with a connection fixing shaft as the center. The connector is pressed by the two bidirectional torsion springs to move along with the angle adjuster. The automatically-adjusting waist-abutting device and the rotary chair have the advantages of being simple in structure and low in achieving coat, achieve automatic adjustment of the position of a waist-abutting plate according to tilt of a chair back and tilt of a chair surface, enable users to be in an optimal sitting posture state, and are favorable for physical and mental relaxation and improvement of working efficiency of the users.
Description
technical field [0001] The invention relates to a swivel chair waist protection device, in particular to an automatically adjustable waist support device arranged on the back of a swivel chair and a swivel chair with the waist support device. Background technique [0002] The swivel chair has many advantages such as simple structure, convenience, durability and practicality, and is widely used in office work or home furnishing. [0003] The tray of the swivel chair is the core component that realizes the basis of various functions. The waist protection device in the current swivel chair is fixed on the back of the swivel chair, and the function of waist protection is achieved through manual adjustment. Different. If the waist support device is not properly adjusted, it will easily make the waist feel uncomfortable, sore, etc., but manual adjustment is cumbersome and inconvenient. Contents of the invention [0004] The invention proposes an automatically adjustable waist...
Claims
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IPC IPC(8): A47C7/62A47C7/00A47C3/18
Inventor 林育文
Owner 林育文