Wiper blade for a windscreen wiper
AssigneeRobert Bosch GmbH
InventorJochen Weidlich
Life of this patent
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Abstract
The invention relates to a wiper blade for a windscreen wiper, comprising a wiper strip on which at least one support rail (312, 314) is disposed, wherein said support rail has a spring element (412, 415) provided with a plastic sheath (313, 315), and further comprising a base connection device (160), which includes plastic and is welded to plastic sheath (313, 315), wherein a flat weld seam (419, 421) is formed between the base connection device (160) and the at least one support rail (312, 314).
Claims17
A wiper blade (100) for a windscreen wiper, comprising a wiper strip (112), on which at least one loadbearing rail (312, 314) is arranged, the loadbearing rail having a spring element (412, 415) which is provided with a plastic covering (313, 315), a base connection device (160) which has plastic and is welded to the plastic covering (313, 315), and a flat welded seam (419, 421) between the base connection device (160) and the at least one loadbearing rail (312, 314).
A base connection device (160) for a wiper blade (100), which base connection device (160) has plastic and can be welded to a plastic covering (313, 315) of a loadbearing rail (312, 314) of the wiper blade (100), characterized in that the base connection device (160) has a basic body (290), on which lateral holding members (220, 240) are provided which in each case have at least one energy direction transmitter (224, 244) and are configured for engaging in a claw-like manner at least in sections around the loadbearing rail (312, 314) in such a way that the energy direction transmitters (224, 244) face a broad side (463, 473) of the loadbearing rail (312, 314), the basic body (290) having at least one through-passage opening (222, 242) configured to guide a welding tool (293, 295) through the basic body (290) as far as the loadbearing rail (312, 314) during welding of the base connection device (160) to the plastic covering (313, 315) of the loadbearing rail (312, 314) in order to produce a flat welded seam (419, 421) by melting the energy direction transmitters (224, 244).
Dependencies are inferred from the claim text.