Abstract: A separable, form-fitting joint (5) is proposed in which one plastic component is designed as a base component (6) and another component, a cover (7), is designed as a component to be mounted on the base component (6), and the cover (7) is equipped, as viewed from the mounting direction (10), with opposing pocket-shaped receptacles (13, 14, 20, 21) which are formed on cover (7) by tongues (16, 17, 22, 23) on the cover (7) and which accommodate the insertion of flange-shaped edge sections (9, 12) of the base component (6).

Abstract: The bumpers of motor vehicles nowadays are being used to an increasing extent to carry components of small size in which their position on a bumper is especially advantageous for their operation due to its exposed location. For example, it is known to build into the bumpers of vehicles flashers, parking lights and especially distance sensors (parktronic sensors, abbreviated PTS) which detect the distance from other vehicles or obstructions and are designed as parking aids. The components must be mounted such that when the bumpers are affected, especially by mechanical shock, any loosening or dropping out will be impossible. At the same time the mountings must be able to be made simply and inexpensively. It is therefore proposed according to the invention that the tongues be affixed by feet to the bumper, or in case of a bumper of modular design, to one of its modules, and be positioned opposite the opening.

Abstract: The bumpers of motor vehicles nowadays are being used to an increasing extent to carry components of small size in which their position on a bumper is especially advantageous for their operation due to its exposed location. For example, it is known to build into the bumpers of vehicles flashers, parking lights and especially distance sensors (parktronic sensors, abbreviated PTS) which detect the distance from other vehicles or obstructions and are designed as parking aids. The components must be mounted such that when the bumpers are affected, especially by mechanical shock, any loosening or dropping out will be impossible. At the same time the mountings must be able to be made simply and inexpensively.

Abstract: When two plastic components are joined to form a permanent integral joint by means of ultrasonic welding or a form-fitting joint by means of ultrasonic riveting, the joining method may result in changes on the surface of the joined workpieces which degrade their appearance. The process of fitting the components together before welding requires that the components be precisely positioned in a way that is difficult to maintain since the components may shift relative to one another. In the case of welded components, if one component is defective all components must be replaced—a characteristic which generates unnecessary costs. In addition, the process of welding workpieces requires additional machines and tools.