Abstract: The invention relates to a plastic holding device 1 comprising an outer shell 2 of harder material to be fastened on a support 4, and an inner shell 3 of softer material set therein. The holding element 1 is provided with at least one holding or bearing point, 10 to 13, for the reception of a tubular part, 6 to 9. According to the invention, the outer shell 2 has an open zone 15 adjacent to the support 4 and into which is received the softer inner shell 2 provided with the bearing points 10 to 13. The inner shell projects beyond the outer shell in the unmounted condition and engages the support 4 when the device is mounted to provide noise and vibration dampening for the assembly.

Abstract: The disclosure is directed to a plastic sealing cover 1 for closing an opening in a panel or frame member. The cover includes a circumferential elastic sealing lip for pressing against one side of the panel. A holding stay 3 lies opposite the lip 2 for pressing against the other side of the panel. The lip 2 and the stay 3 are connected by a wall 11. The center of the cover is formed by a sealing zone 10 arched inwardly in a direction from the sealing lip toward the holding stay 3. Between the arched sealing zone 10 and the wall 11 there is provided at least one opening 5.