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US 2002/0162185 A1Published application
Wiper blade
AssigneeRobert Bosch GmbH
InventorsNorbert Wegner, Edwin Luyperts
Life of this patent
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AssigneeRobert Bosch GmbH
InventorsNorbert Wegner, Edwin Luyperts
Estimating the term…
The invention is based on a wiper blade (10) with a wiper strip (12), which is surrounded by a guard profile (14) that with extensions (26, 28) formed onto its side cheeks (22, 24) engages longitudinal grooves (50, 52) of the wiper strip (12) and is fixed axially on the wiper strip (12) by inward protruding protrusions (30, 32) in the region of its face ends (18, 20). It is proposed that the protrusions (30, 32) originate at one side cheek (22, 24) of the guard profile (14), and a first protrusion (30) extends on the outer face end (18) of the guard profile (14) to close to the opposite side cheek (22, 24) of the guard profile (14), while a second protrusion (32) on the inner face end (20) forms a gap (38) from the opposed side cheek (22, 24), which gap allows mounting or unmounting of the guard profile (14) in the longitudinal direction (40, 42).
A wiper blade (10) with a wiper strip (12), which is surrounded by a guard profile (14) that with extensions (26, 28) formed onto its side cheeks (22, 24) engages longitudinal grooves (50, 52) of the wiper strip (12) and is fixed axially on the wiper strip (12) by inward-protruding protrusions (30, 32) in the region of its face ends (18, 20), characterized in that the protrusions (30, 32) originate at one side cheek (22, 24) of the guard profile (14), and a first protrusion (30) extends on the outer face end (18) of the guard profile (14) to close to the opposite side cheek (22, 24) of the guard profile (14), while a second protrusion (32) on the inner face end (20) forms a gap (38) from the opposed side cheek (22, 24), which gap allows mounting or unmounting of the guard profile (14) in the longitudinal direction (40, 42).
The wiper blade (10) of one of the foregoing claims, characterized in that the second protrusion (32) has a chamfer (56), inclined in the mounting direction (40), which in the mounting process orients the wiper lip (46) of the wiper strip (12) toward the gap (38).
The wiper blade (10) of one of the foregoing claims, characterized in that the second protrusion (32) has a chamfer (56), inclined in the unmounting direction (42), which in the unmounting process orients the wiper lip (46) of the wiper strip (12) toward the gap (38).
The wiper blade (10) of one of the foregoing claims, characterized in that the chamfer (56) operative in the mounting direction (40), with a cross-sectional plane (58) forms a larger angle than the chamfer (54) operative in the unmounting direction (42).
The wiper blade (10) of one of the foregoing claims, characterized in that the first protrusions (30) differ in cross section and/or longitudinal section from the second protrusions (32).
The wiper blade (10) of one of the foregoing claims, characterized in that the guard profile (14) comprises plastic, and at least one protrusion (30, 32) is made with an ultrasonic probe.
Dependencies are inferred from the claim text.