More about Knobs

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Used in a variety of applications, knobs primarily serve as a positioning component. A knob’s function can be as simple as a handle for opening and closing a cabinet or office door, or as complex as a precision tightening and alignment tool on a piece of manufacturing equipment. In many cases, knobs allow users more flexibility and control than could be achieved with other connecting and fastening components.

Knobs are available in a variety of shapes and sizes. Brass and chrome doorknobs are regular features in many homes, while rubber- and plastic-coated positioning knobs can be found on many desk chairs and other pieces of adjustable furniture. Knobs can be manufactured in a complete assortment of shapes, attached to various components and mechanisms. Control knobs, for instance, are often marked with precise delineations that accord to the degree to which they move a device within the operating system. The level of precision achieved depends on the materials used and the calibration techniques employed in the knob’s manufacture. Door knobs, on the other hand, are usually designed for smooth action, durability and strength rather than for extreme precision. They are connected to key, latch and bolt mechanisms to allow for selective accessibility and privacy.

Instrument knobs can be affixed to a threaded bolt or another type of cylinder, or can contain a threaded cylinder, gear shaft or other positioning component. Typically, they allow a user to adjust the location of various machine parts by clockwise and counterclockwise turning. As in the case of tightening knobs, they may simply drive the threaded shaft closer to a surface, locking it in place. Control knobs can also be designed to regulate the amount of electricity or power received by a certain part or system. They may also manage the power output of the attached device. In general, knobs are meant to be manipulated by a hand, and are shaped accordingly. Consumers should consider the knob’s aesthetic qualities, maneuverability, resilience and accuracy.