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US 10,710,555 B2Granted
Wiper blade and method for manufacturing wiper blade
AssigneeDenso Corporation
InventorsTakao Yoshimoto, Masahiro Oota
Life of this patent
Estimating the term…
Abstract
A wiper blade extends in the longitudinal direction and includes blade rubber, a plate spring-like backing, and a rubber holder. The blade rubber wipes a surface to be wiped. The backing imparts rigidity and elasticity to the blade rubber. The rubber holder holds both the longitudinally intermediate section of the blade rubber and the longitudinally intermediate section of the backing. The rubber holder has a backing housing hole for housing and retaining the backing. The backing housing hole longitudinally extends through the rubber holder. A parting line is set at the longitudinal center of the backing housing hole.
Claims14
A wiper blade comprising:
- a rubber holder;
- a backing having a plate spring-like shape;
- and
- a blade rubber operative to wipe a wiped surface, wherein
- the rubber holder holds an intermediate portion of the blade rubber in a longitudinal direction and an intermediate portion of the backing in the longitudinal direction, the rubber holder includes:
- a backing accommodation slot forming a first opening in the rubber holder that extends through the rubber holder in a direction extending along a longitudinal direction of the backing to receive and hold the backing;
- a blade rubber accommodation slot forming a second opening in the rubber holder, the second opening spaced apart from, and disposed below, the first opening, the second opening extending longitudinally parallel to the first opening, the blade rubber accommodation slot adapted to receive and hold an uppermost portion of the blade rubber;
- and
- a third opening extending longitudinally parallel to the first opening and the second opening and disposed between the first opening and the second opening, the third opening having a width dimension less than a width dimension of the first opening and less than a width dimension of the second opening, wherein no portion of the blade rubber extends into the third opening when the blade rubber is received in the second opening, wherein
- the blade rubber includes
- a head located in the second opening,
- a narrow portion, wherein the narrow portion has a smaller width than the head and extends downward, and
- a wiping portion used to wipe the wiped surface,
- the wiper blade further includes a wiper case located above the blade rubber,
- the wiper case holds the blade rubber and the backing,
- the wiper case includes
- a receptacle that accommodates and holds the backing,
- two lower extensions that extend downward from the receptacle and cover lateral sides of the head, and
- claws that respectively extend from lower ends of the two lower extensions toward a laterally inner side, wherein the claws are opposed to a lower surface of the head and hold the head,
- each of the lower extensions includes a thick portion located at a basal side of the lower extension, and
- each thick portion has a lateral thickness that is greater than a thickness of a portion of the receptacle located between the backing and the head.
18 more elements
A wiper blade comprising:
- a rubber holder;
- a backing having a plate spring-like shape;
- and
- a blade rubber operative to wipe a wiped surface, wherein
- the rubber holder holds an intermediate portion of the blade rubber in a longitudinal direction and an intermediate portion of the backing in the longitudinal direction, the rubber holder includes:
- a backing accommodation slot forming a first opening in the rubber holder that extends through the rubber holder in a direction extending along a longitudinal direction of the backing to receive and hold the backing;
- a blade rubber accommodation slot forming a second opening in the rubber holder, the second opening spaced apart from, and disposed below, the first opening, the second opening extending longitudinally parallel to the first opening, the blade rubber accommodation slot adapted to receive and hold an uppermost portion of the blade rubber;
- and
- a third opening extending longitudinally parallel to the first opening and the second opening and disposed between the first opening and the second opening, the third opening having a width dimension less than a width dimension of the first opening and less than a width dimension of the second opening, wherein no portion of the blade rubber extends into the third opening when the blade rubber is received in the second opening, wherein
- the blade rubber includes
- a head located in the second opening,
- a narrow portion, wherein the narrow portion has a smaller width than the head and extends downward, and
- a wiping portion extending below the narrow portion and used to wipe the wiped surface,
- the wiper blade further includes a wiper case located above the blade rubber,
- the wiper case holds the blade rubber and the backing,
- the wiper case includes
- a receptacle that accommodates and holds the backing,
- two lower extensions that extend downward from the receptacle and cover lateral sides of the head, and
- claws that respectively extend from lower ends of the two lower extensions toward a laterally inner side, wherein the claws are opposed to a lower surface of the head and hold the head,
- each of the lower extensions includes a thick portion located at an outer side of the lower extension, and
- the thick portions limit deformation of the lower extensions relative to basal ends of the lower extensions that would separate the claws.
18 more elements
Dependencies are inferred from the claim text.