Filter, Filter Element, Fastening Housing Part of a Filter Housing and Telescopic Switching Element of a Switching Device of a Releasable Detent Connection

A filter (10) for filtering fluids, comprising:

• a filter housing (12), comprising:
• at least two housing parts (14, 16;
• 514), and
• a filter element (18;
• 518) which by means of a releasable detent connection (20) is attached in one of the housing parts that acts as a fastening housing part (14;
• 14) for the filter element (18;
• 518);
• wherein the detent connection (20) comprises
• at least two interacting detent components (32, 36), and one of the detent components (32) is connected with the filter element (18;
• 518) and one of the detent components (36) with the fastening housing part (14;
• 514);
• and
• at least one of the detent components comprises
• at least one detent means (32) and
• one of the detent components (36) includes a recess (38) corresponding with the detent means (32), in which recess the detent means (32) hooks in a bayonet-like manner, and the recess (38) comprises the following areas:
• a locking area (40) for receiving the detent means (32) while the housing parts (14, 16;
• 514) are connected;
• a retaining area (42) for receiving the detent means (32) during opening of the filter housing (12);
• a translation area (44) for releasing the detent means (32) in the recess (38);
• and
• an insertion/removal area (46) for resistance-free joining and separating of detent means (32) and recess (38);
• wherein a switching device (58;
• 558) comprises
• at least two corresponding switching components (60, 78;
• 560);
• wherein one of the switching components (60;
• 560) is connected with the filter element (18;
• 518) and
• wherein one of the switching components (62;
• 562) is connected with the fastening housing part (14;
• 514);
• and
• one of the switching components (60;
• 560) has at least one switching lug (76;
• 576) extending radially relative to a rotation/insertion axis (30;
• 530) of the filter (10);
• and
• one of the switching components (62;
• 562) comprises
• a switching guide (78;
• 578) for guiding the switching lug (76;
• 576) such that the switching guide (78;
• 578), upon an impulse-like relative axial movement of the filter element (18;
• 518) in a direction toward the fastening housing part (14;
• 514), guides the switching lug (76;
• 576) and thereby effects a rotation of the filter element (18;
• 518) relative to the fastening housing part (14;
• 114) around the rotation/insertion axis (30;
• 530) for moving the detent means (32) from the insertion/removal area (46) into the locking area (40) or from the retaining area (42) into the insertion/removal area (46), depending on the position of the detent means (32) in the recess (38) before effecting the axial movement.