Holder for flat, approximately rectangular devices such as tablet computers or smartphones

A holder for detachably fastening of a device to a component, the holder comprises:

• a holding mechanism for detachably holding the device and a fastening element that is connected to the holding mechanism to connect the holder with the component, wherein a rotary bearing is provided that is rotatable around an axis of rotation, wherein the rotary bearing is connected to the holding mechanism, and wherein a pivot bearing is provided which is connected to the rotary bearing and which is connected to the fastening element, wherein the rotary bearing comprises
• a first rotary bearing portion connected to the holding mechanism and a second rotary bearing portion connected to the fastening element, wherein locking elements are provided on the rotary bearing perpendicular to the axis of rotation of the rotary bearing, the locking elements being displaceable between a radial inner locking position and a radial outer release position, wherein in the release position the first rotary bearing portion is rotatable in relation to the second rotary bearing portion and wherein in the locking position the first rotary bearing portion is fixed in relation to the second rotary bearing portion, wherein an annular spring is provided which is designed and arranged such that the locking elements are pre-stressed in a radially inward direction into the locking position by the annular spring.