| 摘要 |
An arm piece of a wiper arm, which has a connecting portion connected to a connecting pin through a connecting member received in an opening of a main lever, extends from the connecting portion toward a base end side portion of the main lever such that the arm piece overlaps with an upper surface of the main lever. The main lever is formed by runnerless injection molding. A gate trace, which is left on the main lever in the runnerless injection molding, is formed in an arm accommodation portion of the main lever, which is opposed to the arm piece in a top-to-bottom direction. |
| 主权项 |
1. A wiper blade comprising:
a wiper strip having an elongated structure and configured to wipe a wiping surface; and a holder member consisting of an injection molded member made of a resin material and directly or indirectly holding the wiper strip, wherein: the wiper strip is located on a lower side of the holder member in a top-to-bottom direction of the holder member; the holder member includes an opening that is placed in a center portion of the holder member in a longitudinal direction of the holder member and extends through the holder member in the top-to-bottom direction; a connecting shaft is held by the holder member in the opening of the holder member to extend through the opening of the holder member; the connecting shaft is adapted to be connected to a connecting portion of a wiper arm through a connecting member, which is received in the opening of the holder member, and the holder member is adapted to accommodate the wiper arm such that the wiper arm extends from the connecting portion of the wiper arm toward a base end side portion of the holder member and overlaps with an upper surface of the holder member when the connecting shaft is connected to the connecting portion of the wiper arm through the connecting member; a gate trace, which has a shape that corresponds to a shape of a gate of a molding die used to mold the holder member, is formed in a portion of the upper surface of the holder member, which is adjacent to a base end side portion of the opening and is adapted to be opposed to and beneath the wiper arm in the top-to-bottom direction when the connecting shaft is connected to the connecting portion of the wiper arm through the connecting member; the connecting shall, extends in an axial direction and has first and second end portions arranged on opposing ends of the connecting shaft in the axial direction of the connecting shaft, each first and second end portion includes a flange portion embedded in the holder member, and a step portion that is located on an axially inner side of the flange portion in the axial direction of the connecting shaft; and an axially inner end surface of each of the step portions of the connecting shaft is flush with a corresponding exposed inner surface of one of the first and second side walls in the opening of the holder member. |
