Joining together two, typically plastic, parts, particularly the parts of an insertion sensor to be inserted into a pipeline using vibration or ultrasonic welding with welding pockets between the two parts for excess material

Device, such as sensor for insertion in a pipeline, etc., comprises two parts (3, 6) that are to be joined together by welding. To facilitate the welding process there are weld pockets (9) between the two parts into which material from one or more of the two parts can be pushed during welding. Typically the two parts are plastic and are joined together by ultrasound or vibration welding. Zwei Teile, die eine Vorrichtung bilden und nach dem Stand der Technik miteinander verbunden sind, sind aufwendig miteinander zu verbinden und benötigen zusätzliche Elemente zur Erzeugung einer dichtenden Verbindung. DOLLAR A Eine erfindungsgemäße Vorrichtung (1), bestehend aus zwei Teilen (3, 6), weist Schweißtaschen (9) auf, in die Material beim Schweißvorgang zur Herstellung einer Verbindung gelangen kann.