Wiper blade

Patent metadata

Field	Value
Publication number	US-9751499-B2
Application number	US-201113997329-A
Country	US
Kind code	B2
Filing date	Nov 29, 2011
Priority date	Dec 27, 2010
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

Provided is a wiper blade wherein: a pair of accommodation sections ( 31 d ) are disposed so as to sandwich therebetween a holding section ( 31 a ) that holds a main body section ( 21 ); a vertebra ( 31 e ) is accommodated in each of the accommodation sections ( 31 d ); an arm connection member ( 40 ) to which a wiper arm is connected is fixed to each vertebra ( 31 e ); a rubber pressing section ( 31 f ) that presses the main body section ( 21 ) towards a front glass is disposed in a section of the holding section ( 31 a ) that faces the front glass; and a holder pressing section ( 31 g ) that presses a holder member ( 30 ) towards the front glass by the elastic force of each vertebra ( 31 e ) is disposed in the section of each accommodation section ( 31 d ) that faces the front glass, further on the front glass side than the rubber pressing section ( 31 f ).

First claim

What is claimed is:

1. A wiper blade attached to a wiper arm swingably provided on a vehicle and operating reciprocating wiping on a windshield, comprising:
a blade rubber comprising
a lip part contacted with the windshield and
a main-body part integrally formed with the lip part;

a holder main body comprising a retaining part retaining the main-body part;
a pair of housing parts provided in short-side-direction on both sides of the holder main body so as to sandwich the retaining part;
a pair of vertebrae housed in each of the housing parts and elastically deforming the blade rubber in accordance with a curvature factor of the windshield;
an arm coupling member fixed to each of the vertebrae and coupled to the wiper arm;
a rubber pressing part provided in an opposed part to the windshield of the retaining part, and pressing the main-body part against the windshield; and
a holder pressing part that is provided in an opposed part to the windshield of each of the housing parts, and in a side closer to the windshield than the rubber pressing part and pressing the holder main body toward the windshield by elastic force of the vertebra.

2. The wiper blade according to claim 1 , wherein each of the vertebrae is movably housed in the housing parts in the longitudinal direction thereof.

3. The wiper blade according to claim 1 , wherein a fin part is provided in an opposite side to the windshield side of the holder main body; and a vertex part farthest from the windshield of the fin part is disposed in a downstream side of a flow direction of a travel wind along a short-side direction of the holder main body.

4. The wiper blade according to claim 3 , wherein a travel-wind branching point is formed in an upstream side of the flow direction of the travel wind along the short-side direction of the holder main body; and a length from the travel-wind branching point to the vertex part is longer than a length from the travel-wind branching point to a distal end of the lip part of the blade rubber.

5. The wiper blade according to claim 1 , further comprising an upstream-side lower-end surface part provided in a short-side-direction on first side of the holder main body and positioned in an upstream side of a flow direction of a travel wind and in a side of the windshield; and
a downstream-side lower-end surface part provided in a short-side-direction on second side of the holder main body and positioned in a downstream side of the flow direction of the travel wind and in the side of the windshield;

wherein the upstream-side lower-end surface part and the downstream-side lower-end surface part are formed so that a cross section of the holder main body along the short-side direction has an arc shape, and a curvature factor of the upstream-side lower-end surface part is larger than a curvature factor of the downstream-side lower-end surface part.

6. The wiper blade according to claim 5 , wherein the holder main body is integrally provided with a fin part so as to be along a longitudinal direction of the holder main body.

7. The wiper blade according to claim 6 , wherein an upstream-side air-current surface part and a downstream-side air-current surface part are provided in a short-side-direction on first side and a short-side-direction on second side of the fin part, respectively; each of the air-current surface parts is formed so that a cross section thereof along the short-side direction of the fin part has an arc shape; and a curvature factor of the upstream-side air-current surface part is smaller than a curvature factor of the downstream-side air-current surface part.

8. The wiper blade according to claim 7 , wherein a connecting surface part of which cross section along the short-side direction of the fin part has an arc shape is provided between the upstream-side lower-end surface part and the upstream-side air-current surface part.

9. The wiper blade according to claim 6 , wherein the holder main body and the fin part are two-color molded with materials of which hardness is different.

Assignees

• Fujiwara Masaru
• Sase Hiroyuki
• Okabe Kouji
• Naruse Hisaaki
• Ikeno Hiroyuki
• Takayama Akira
• Sase Naomi
• Mitsuba Corp
• Honda Motor Co Ltd

Inventors

• Fujiwara Masaru
• Sase Hiroyuki
• Okabe Kouji
• Naruse Hisaaki
• Ikeno Hiroyuki
• Takayama Akira

Classifications

• B60S2001/4022

  the element being provided with a locking element movable thereon · CPC title

• B60S1/3894

  having a particular shape · CPC title

• B60S1/3881

  in additional element, e.g. spoiler · CPC title

• B60S1/4019

  the retention means being protrusions or holes · CPC title

• B60S1/3445 Primary

  Joints between elements · CPC title