The knob is mainly used in all kinds of potentiometer and switch to provide the operator with the most intuitive visual cues in dark environment.
Knob
Knob
Overview
Specifications
- 1.Materials: knob is used transparent thermoplastic material to mold. Insert is brass, according to 4423-1992 GB implementation.
- 2.The diameter of the shaft hole and the diameter of the shaft shall be in accordance with the requirements of appendix 1.
- 3.Coating: knob, black No. 37038, gray No. 36231, are according to FED-STD-595C ; Medium gray B02，is according to GSB 05-1526-2001. All the white marks on the grey knob are surrounded by a black border as shown in the figure. Insert needs to be plated with nickel, according to GJB/Z594A-2000.
- 4.The contrast of knob is at least 7. Contrast (C) is defined as: Where B1 is the average brightness of the black border or background, B2 is the average brightness of the mark.
- 5.The luminance ratio shown in the figure is the ratio between the average brightness of mark illuminated on the knob and the average brightness of standard light source. Standard light source simulates ring of knob on light guide plate, luminance ratio is denoted by decimals. Engineer establishes luminance relationship between light emitting region on light guide plate and knob marks using luminance ratio.Due to the lack of complete data on all knob models, the luminance ratio indexes are omitted in the catalog.However, if you need, the specific data can be provided in accordance with the technical documentation requirements.
- 6.The luminance ratio does not contain the marks of which radius of knob center is less than 6.4.
- 7.Unless specified otherwise, tolerance of the basic size with one decimal is ±0.5mm, tolerance of angle is ±2°
- 8.The set screws is according to 80-200 GB/T80-2007
Shape & Function
This type of knob is circular knob, On the gripping surface along peripheral side is a strip groove structure. Based on the characteristics of its shape, it is always used for the devices such as switch and potentiometer etc, of which torque is small, that requires continuous rotation or ring rotation.
Naming rules
Shape & Function
This type of knob is circular knob with transparent lower layer that is designed specially for the double switch and potentiometer, and works in with other small type knobs. used in conjunction with, On the gripping surface along peripheral side is a strip groove structure， it is always used for the devices,such as switch and potentiometer etc, of which torque is small, that requires a continuous rotation or ring rotation.
Naming rules
Shape & Function
This type of knob is knob with cambered skirt, it has a larger grip surface. Based on the characteristics of the shape and small size, it is always used for medium torque and intermittent regulation occasions.
Naming rules
Shape & Function
This type of knob is knob with rhombus skirt, its characteristics is large gripping surface with symmetrical shape. Based on the characteristics of its shape, it is always used for devices with several knobs arranged, and can be widely used for products，such as band switch, potentiometer, etc. which have large rotation angle.
Naming rules
Shape & Function
This type of knob is knob with tooth profile cambered skirt, it has large gripping surface and alveolar structure on gripping surface, has good shape indicating function to ensure reliable operation when used in devices which have big rotational forces. Based on the characteristics of its shape, it is always used for devices like band switch that have large torque and less bands.
Naming rules
Shape & Function
This type of knob is a knob with inclined skirt，it has large gripping surface, and indicates a clear direction. Based on the characteristics of its shape, it is always used for devices like band switch that have large torque and less bands.
Naming rules
Shape & Function
This typea of knob is a knob with paraboloid and gripping handle structure. Based on the characteristics of its shape, it is always used for the devices like band switch that have large torque and less bands.
Naming rules
Shape & Function
This type of knob is a combination of special shaped knobs, which is mainly used for the shape coding of the knob.
Naming rules
Shape & Function
This type of knob is a combination of special shaped knobs, which is mainly used for the shape coding of the knob.
Naming rules
Shape & Function
This type of knob is cylindrical knob, On the gripping surface along peripheral side is a strip groove structure. Based on the characteristics of its shape, it is always used for the devices such as switch and potentiometer etc, of which torque is small, that requires continuous rotation or ring rotation.
Naming rules
