Composition type knob button

Abstract

The invention discloses a composite knob button, which comprises a fixed seat, a rotatable knob installed on the top side of the fixed seat, and an elastic button mounted on the top side of the knob and hooked to the fixed seat and pressurized. The button of the component, a torsion spring installed on the bottom side of the fixed seat, a brush plate fixed to the knob and a switch fixed on a circuit board are arranged in sequence. When the button is pressed, an actuating rod can be used to press the switch to make the circuit board transmit information, and after the button is released, it can be automatically reset by the elastic member. When the knob is turned, the brush board can be driven to rotate and The information is transmitted by the circuit board and can be automatically reset by the torsion spring after being released, so that the present invention has the characteristics that the button and the knob do not interfere with each other and relatively can reduce the damage rate.

Description

technical field [0001] The invention relates to an operating device, in particular to a composite knob key applied to digital products. Background technique [0002] Generally, the composite knob button installed in digital cameras has a button that can be pressed to control the shutter, and a rotatable mode dial that is coaxially installed outside the button and can adjust the function of the camera or make the lens retractable. knob, such as figure 1 As shown, it is a combined sectional view of U.S. Patent No. 6,610,937. The composite knob button 10 of this patent has a fixed seat 11, and a positioning elastic piece (not shown) installed in the top side of the fixed seat 11. A mode dial 13 that is rotatably assembled on the positioning elastic piece and located in the fixed seat 11, a compression spring 14 installed in a receiving groove 131 of the mode dial 13, is set in the compression spring 13 On the spring 14, the buttons 15 of the mode dial 13 are hooked together b...

AI Technical Summary

Problems solved by technology

[0007] Although the composite knob button 20 has the above-mentioned functions, there is also the problem that when the knob 29 is rotated, the button 28 will rotate and make the central shaft 281 rotate in contact with the elastic body 23 for a long time, causing the central shaft 281 to rotate. The elastic body 23 is more prone to wear, false touch signals, and dust shedding, and eventually has a higher failure rate; in addition, because the torsion spring 27 is located above the seat 26, the knob 29 It must have an appropriate height to accommodate the torsion spring 27, resulting in the lack of a relatively large overall volume of the composite knob button 20

[0008] In addition, U.S. Patent No. 6,621,016 also has the disadvantage that when the knob is turned, the button will be turned accordingly, resulting in a higher failure rate

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