Wiper arm and method of manufacturing same
AssigneeMitsuba Corporation
InventorHiroki Tokunaka
Life of this patent
Estimating the term…
Abstract
Provided is a wiper arm including: an arm head in which a base end is attached to a swing shaft; an arm shank in which a base end is attached to a tip of the arm head; an arm piece in which a base end is attached to a tip of the arm shank; a washer tube; a washer nozzle attached to a tip of the washer tube; and a cover member covering at least the surrounding of a part of the arm piece and the washer tube in a longitudinal direction. The cover member includes: a first cover body, having a top wall portion, and side wall portions protruding from both sides of the top wall portion in a short-side direction; and a second cover body, attached to the side wall portions and disposed to face the top wall portion.
Claims11
A wiper arm, swinging a wiper blade that wipes a surface to be wiped, comprising:
- an arm head in which a base end is attached to a swing shaft;
- an arm shank in which a base end is attached to a tip of the arm head;
- an arm piece in which a base end is attached to a tip of the arm shank;
- a washer tube disposed along the arm head, the arm shank, and the arm piece;
- a washer nozzle attached to a tip of the washer tube;
- and
- a cover member covering at least the surrounding of a part of the arm piece and the washer tube in a longitudinal direction;
- wherein the cover member comprises:
- a first cover body, having a top wall portion, and a pair of side wall portions protruding from both sides of the top wall portion in a short-side direction of the top wall portion;
- and
- a second cover body, attached to the pair of side wall portions and disposed to face the top wall portion.
A method of manufacturing a wiper arm, the wiper arm comprising:
- an arm head in which a base end is attached to a swing shaft;
- an arm shank in which a base end is attached to a tip of the arm head;
- an arm piece in which a base end is attached to a tip of the arm shank;
- a washer tube disposed along the arm head, the arm shank, and the arm piece;
- a washer nozzle fixed to the arm piece, to which a tip of the washer tube is connected;
- a cover member arranged between the arm shank and the washer nozzle, covering at least the surrounding of a part of the arm piece and the washer tube in a longitudinal direction;
- an engagement convex portion arranged at one of the washer nozzle and the cover member and protruding in the longitudinal direction of the arm piece;
- and
- an engagement concave portion arranged at the other of the washer nozzle and the cover member and recessed in the longitudinal direction of the arm piece, with which the engagement convex portion is engaged;
- wherein the cover member comprises:
- a first cover body, having a top wall portion, and a pair of side wall portions protruding from both sides of the top wall portion in a short-side direction of the top wall portion;
- and
- a second cover body, attached to the pair of side wall portions and disposed to face the top wall portion;
- and
- wherein the method of manufacturing a wiper arm comprises:
- a first process in which the cover member is attached to the arm piece from a short-side direction of the arm piece;
- a second process in which the washer nozzle is attached to the arm piece from the short-side direction of the arm piece;
- a third process in which the washer nozzle is moved in the longitudinal direction of the arm piece, and the engagement convex portion and the engagement concave portion are engaged with each other;
- and
- a fourth process in which the washer nozzle is fixed to the arm piece by a fixing screw.
Dependencies are inferred from the claim text.