# US 2013/0239356 A1 · Wiper blade and wiper for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0239356 A1 - Document ID: US20130239356A1 - Status: Published application - Kind: A1 - Application number: 13/612,112 - Filed: 2012-09-12 - Published: 2013-09-19 - Earliest claimed: 2011-09-15 - Assignees: Asmo Co., Ltd. - Inventors: Takao Yoshimoto; Naoki Torii; Masahiro Oota; Masahiro Kitamura - Web page: https://patentgrep.com/patent/US20130239356A1 ## CPC - B60S 1/38: Wiper blades {(provided with liquid spreading means B60S1/524; provided with gas spreading means B60S1/546)} - B60S 1/381: {Spoilers mounted on the squeegee or on the vertebra} - B60S 1/3851: {Mounting of connector to blade assembly} - B60S 1/3863: {Connectors having a spoiler} - B60S 1/4048: {the element being provided with retention means co-operating with the channel-shaped end of the arm} - B60S 1/3856: {Gripping the blade} - B60S 1/3858: {with protrusions cooperating with holes} - B60S 1/3881: {in additional element, e.g. spoiler} - B60S 2001/4051: {the intermediate element engaging the side walls of the arm} - B60S 2001/4054: {the intermediate element engaging the back part of the arm} - B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR ## Abstract A wiper blade includes a wiper strip, a backing, a blade holder coupled to the wiper arm, and two opposed cases arranged at two longitudinal ends of the blade holder. The blade holder includes a blade holding portion, which surrounds a base portion of the wiper strip and the backing at a longitudinally central portion of the wiper strip and the backing. The blade holding portion restricts movement of the wiper strip and the backing in a direction orthogonal to the longitudinal direction. Each case includes a case holding portion that surrounds the base portion of the wiper strip and the backing. The case holding portion restricts movement of the wiper strip and the backing in a direction orthogonal to the longitudinal direction. ## Claims ### Claim 1 A wiper blade comprising: an elongated wiper strip including a base portion and a wiping portion, which wipes a wiped surface; a leaf spring backing that extends along a longitudinal direction of the wiper strip and provides the wiper strip with rigidity and resilience; a blade holder directly or indirectly coupled to a wiper arm, wherein the blade holder is coupled to the backing to restrict movement of the backing in the longitudinal direction, the blade holder includes a blade holding portion that surrounds a base portion of the wiper strip and the backing at a longitudinally central portion of the wiper strip and the backing, and the blade holding portion holds the wiper strip and the backing to restrict movement of the wiper strip and the backing in a direction orthogonal to the longitudinal direction; and two cases opposed to each other and arranged at two longitudinal ends of the blade holder, wherein each of the cases includes a case holding portion surrounding the base portion of the wiper strip and the backing, and the case holding portion holds the wiper strip and the backing to restrict movement of the wiper strip and the backing in the direction orthogonal to the longitudinal direction. ### Claim 2 (depends on 1) The wiper blade according to claim 1, wherein the two cases are made of a resilient resin material, each of the cases is resiliently deformable toward the wiped surface to follow plastic deformation of the backing toward the wiped surface, and the blade holding portion has rigidity that is higher than that of the case. ### Claim 3 (depends on 2) The wiper blade according to claim 2, wherein the blade holder has a rigidity that is higher than that of the case. ### Claim 4 (depends on 1) The wiper blade according to claim 1, further comprising two caps respectively engaged with the two longitudinal ends of the backing, wherein the backing is fitted into the two cases in the longitudinal direction, the cases are arranged between the blade holder and the two caps, and the cases are arranged in an immovable state in the longitudinal direction relative to the backing due to the cap and the blade holder. ### Claim 5 (depends on 1) The wiper blade according to claim 1, further comprising a coupling member that is pivotally coupled to the blade holder and coupled to the wiper arm, wherein the coupling member includes two sidewalls, which respectively extend along two side surfaces of the blade holder from a pivot axis, and an upper wall, which connects the two sidewalls and extends along an upper surface of the blade holder, and a notch is formed in an end portion of the upper wall located toward the pivot axis allowing for pivoting of the coupling member. ### Claim 6 (depends on 1) The wiper blade according to claim 1, further comprising a coupling member that is pivotally coupled to the blade holder and coupled to the wiper arm, wherein the coupling member includes two sidewalls, which respectively extend along two side surfaces of the blade holder from a pivot axis, and an upper wall, which connects the two sidewalls and extends along an upper surface of the blade holder, a pivotal coupling portion is arranged in two side surfaces of the blade holder and two sidewalls of the coupling member at positions corresponding to the pivot axis, the pivotal coupling portion pivotally couples the blade holder and the coupling member to each other, each of the two sidewalls of the coupling member includes, in a lower end surface, an arc surface extending around the pivot axis, and the blade holder includes opposing surfaces that are opposed to the arc surfaces. ### Claim 7 (depends on 1) The wiper blade according to claim 1, wherein each of the cases includes a fin portion that converts a traveling air stream into a pressing force acting toward the wiped surface, and the blade holder includes a curved coupling portion that is continuous with the fin portion. ### Claim 8 (depends on 1) The wiper blade according to claim 1, wherein the cases and the blade holder include coupling portions that are opposed to each other, the coupling portions include upper end surfaces that are flush with each other, one of the case and the blade holder includes a step extending in the longitudinal direction, and the step includes an upper surface covered by the other one of the case and the blade holder. ### Claim 9 (depends on 1) The wiper blade according to claim 1, wherein the blade holding portion and the case holding portion surround the base portion and the backing in a state in which the backing abuts against an upper end surface of the base portion of the wiper strip. ### Claim 10 (depends on 1) The wiper blade according to claim 1, further comprising a movement restriction member coupled to and engaged in the longitudinal direction with the backing and the blade holder and restrict relative movement of the backing and the blade holder in the longitudinal direction. ### Claim 11 (depends on 10) The wiper blade according to claim 10, further comprising a coupling member that is pivotally coupled to the blade holder and coupled to the wiper arm, wherein the movement restriction member is fitted and coupled to the backing and the blade holder from above the wiped surface, and the coupling member includes a separation restriction portion that restricts upward separation of the movement restriction member. ### Claim 12 (depends on 11) The wiper blade according to claim 11, wherein the blade holder includes a shaft insertion hole, which is formed at a position corresponding to a pivot axis of the coupling member, and a support part accommodation portion, which is in communication with the shaft insertion hole, the movement restriction member is coupled to and accommodated in the support part accommodation portion through the shaft insertion hole, the coupling member includes a support shaft that is inserted into the shaft insertion hole, the coupling member is pivotally supported by the blade holder through the support shaft, and the support shaft functions as the separation restriction portion. ### Claim 13 (depends on 10) The wiper blade according to claim 10, further comprising a coupling member that is pivotally coupled to the blade holder and coupled to the wiper arm, wherein the blade holder includes a shaft insertion hole formed at a position corresponding to a pivot axis of the coupling member, the coupling member includes two support shafts inserted into the shaft insertion holes, the two support shafts pivotally support the coupling member on the blade holder, the support shafts each include a distal end, and the distal end of each support shaft includes an inclined surface that is inclined so that a height of the support shaft decreases in a direction that differs from the direction of the wiped surface in a usage state after coupling. ### Claim 14 (depends on 13) The wiper blade according to claim 13, wherein the coupling member is arranged to be generally horizontal in its longitudinal direction in a usage state after coupling, and the inclined surface is formed so that the height of the support shaft decreases toward a first longitudinal end of the coupling member. ### Claim 15 (depends on 1) A vehicle wiper comprising: the wiper blade according to claim 1, and the wiper arm including a distal coupling portion, wherein the distal coupling portion includes two lap portions extending downward to a position corresponding to the backing in a vertical direction.