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Chair

A technology of chairs and pressure sensors, which is applied to chairs, stools, and other seating furniture, etc. It can solve the problems of reducing comfort and increasing users' troubles, and achieves the effects of improving comfort, responding promptly, and moving quickly

Inactive Publication Date: 2017-08-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the progress of science and technology, the production process of the roller is getting better and better, and the performance of the roller is getting better and better. The friction of the roller b

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example one:

[0022] The present invention provides a chair, such as figure 1 As shown, it includes a seat cushion 1, a backrest 2, an armrest 3, a bracket 4, and a roller 5. The seat cushion 1 is arranged on the bracket 4, the backrest 2 is connected to the rear side of the seat cushion 1, and the top of the backrest 2 is provided with a headrest 21 and an armrest 3. On the left and right sides of the cushion 1, the roller 5 is installed at the bottom of the bracket 4. The bracket 4 is equipped with an electromagnetic brake for the brake of the roller 5, and the bracket 4 is equipped with a built-in power source 9, a brake switch circuit and a brake control circuit. The built-in power source 9 passes The brake switch circuit is electrically connected to the electromagnetic brake. The brake control circuit includes a control chip 8, a capacitive touch key 6 arranged on the armrest 3, a first pressure sensor 71, a second pressure sensor 72 arranged on the headrest 21 and T...

Example Embodiment

[0033] Embodiment two:

[0034] Different from the electromagnetic brake of the first embodiment, such as image 3 As shown, in this embodiment, the electromagnetic brake is an electromagnetic eddy current brake. The electromagnetic eddy current brake includes a housing 101 and an excitation coil 104 wound on the housing 101. The housing 101 is connected to the bracket 4, and the excitation coil 104 is connected to the The brake switch circuit is electrically connected. The roller 5 includes a wheel shaft 51 and a wheel body 52. ​​The wheel shaft 51 passes through the center of the excitation reel 104 and is fixedly connected to the bracket 4. The wheel body 52 is provided with a metal ring 53, the wheel body 52 and a metal ring 53 set On the axle 51, the metal ring 53 faces the excitation coil 104. When the brake switch circuit is turned on, the coil 104 is excited to form a magnetic field. When the metal ring 53 rotates, it will cut the lines of magnetic force and generate eddy...

Example Embodiment

[0036] Embodiment three:

[0037] Different from the electromagnetic brake of the first embodiment, such as Figure 4 As shown, in this embodiment, the electromagnetic brake is an electromagnetic friction brake. The electromagnetic friction brake includes a housing 101 and an electromagnetic coil 105 wound on the housing 101. The housing 101 is connected to the bracket 4, and the electromagnetic coil 105 is connected to the The brake switch circuit is electrically connected. The roller 5 includes a wheel shaft 51 and a wheel body 52. ​​The wheel shaft 51 is connected to the bracket 4 or the housing 101. The wheel body 52 is elastically connected with an armature 54. The armature 54 rotates with the wheel body 52, and the armature 54 faces the electromagnetic The coil 105. When the brake switch circuit is turned on, the electromagnetic coil 105 attracts the armature 54 and the armature 54 contacts and frictions with the housing 101 to achieve braking. For this reason, the part of...

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PUM

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Abstract

The invention relates to a chair, and the chair comprises a mattress, a backrest, armrests, a support and roller wheels, wherein the mattress is arranged on the support, the backrest is connected with the back side of the mattress, a headrest is arranged at the top part of the backrest, the armrests are arranged on the left and right sides of the mattress, the roller wheels are mounted at the bottom of the support, and an electromagnetic brake for braking the roller wheels is arranged on the support; the support is provided with a built-in power supply, a brake switch circuit and a brake control circuit; the built-in power supply supplies powder for a control chip; the control chip is electrically connected with the brake switch circuit; a capacitance touch key, a first pressure sensor, a second pressure sensor and a third pressure sensor are respectively electrically connected with the control chip; and the control chip controls the electromagnetic brake to work or not according to whether the capacitance of the capacitance touch key changes and whether pressure is detected by the first pressure sensor, the second pressure sensor and the third pressure sensor.

Description

technical field [0001] The present invention relates to articles for daily use, especially a kind of chair. Background technique [0002] In an existing chair, three to five rollers are installed on the bottom of the support, and the chair can be moved quickly by rotating the rollers on the ground, which is convenient for users to sit on the chair to move the position, and is very popular with users no matter they are in office or at home. Due to the progress of science and technology, the production process of the roller is getting better and better, and the performance of the roller is getting better and better. The friction of the roller becomes very small, and the movement of the chair is more sensitive. At this time, it is not that the user himself wants to move the location, so it increases the user's troubles in use and reduces the user's comfort during use. Contents of the invention [0003] The object to be achieved by the present invention is to provide a chair ...

Claims

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Application Information

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IPC IPC(8): A47C7/00A47C7/62
CPCA47C7/00A47C7/006A47C7/62
Inventor 陈滨王东陈晓萌幸洁张一品
Owner ZHEJIANG UNIV OF TECH
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