WO2004054860A1 - Wiper blade - Google Patents
Wiper blade Download PDFInfo
- Publication number
- WO2004054860A1 WO2004054860A1 PCT/JP2003/016119 JP0316119W WO2004054860A1 WO 2004054860 A1 WO2004054860 A1 WO 2004054860A1 JP 0316119 W JP0316119 W JP 0316119W WO 2004054860 A1 WO2004054860 A1 WO 2004054860A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- wrapper
- wiper
- wiper blade
- spring member
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
- B60S1/3884—Wire-shaped section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
- B60S1/381—Spoilers mounted on the squeegee or on the vertebra
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
- B60S1/3875—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section
- B60S1/3879—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section placed in side grooves in the squeegee
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
- B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
- B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
- B60S2001/3818—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being a channel-like element, e.g. not continuous
Definitions
- the present invention relates to a wiper blade for wiping a windshield of a vehicle.
- a wiper device to wipe off extraneous matter, such as rain, snow, insects, and splashes from the vehicle ahead, that adheres to the windshield to secure the driver's view.
- a wiper device generally includes a wiper arm that is swung by an electric motor and a wiper blade that is attached to a tip end of the wiper arm. The pressing force is applied. When the wiper arm moves, the wiper blade reciprocates on the glass surface to perform the wiping operation. In order to exhibit good wiping performance, it is necessary to disperse the pressing force applied to the wiper blade from the wiper arm in the longitudinal direction of the blade wrapper that directly contacts the glass.
- a so-called tournament-type wiper blade has been developed in which a plurality of levers are provided between the blade wrapper and the wiper arm, and the pressing force is dispersed through the lever.
- the tournament type wiper blade there were problems that the number of parts was reduced due to the configuration of the lever, and the number of levers was limited, so that the pressing force could not be sufficiently distributed. Therefore, in a conventional wiper blade, as shown in, for example, Japanese Patent Application Laid-Open No. 6-34049, a leaf spring member such as a party blade is attached to a wiper arm, and a blade wrapper is directly attached to this leaf spring member. The pressing force applied from the wiper arm is dispersed by the leaf spring member over the entire blade wrapper. Further, the width and thickness of the leaf spring member are changed in the longitudinal direction, so that a distribution pressure according to the surface of the window glass to be wiped is applied to the blade rubber.
- the window glass installed on the vehicle The curvature is often different.
- the distribution pressure of the blade wrapper with respect to the window glass is determined by the characteristics of the leaf spring member.Therefore, the wiper blade using the leaf spring member having a predetermined characteristic has a specific curvature. An effective distribution pressure is generated only for the window glass. For this reason, it is necessary to set a wiper blade using a dedicated leaf spring member for each vehicle type, which reduces the versatility of the wiper blade.
- An object of the present invention is to improve the versatility of a wiper blade for window glasses having different curvatures. Disclosure of the invention
- the wiper blade according to the present invention is a wiper blade mounted on a wiper arm that is swingably provided on a vehicle, and swings on a wind glass to wipe the wind glass, the wiper blade being in contact with the wind glass.
- a first spring member provided on a wrapper holder supporting the blade wrapper, for applying the pressing force of the wiper arm to the blade wrapper in a distributed manner; and a spring force of the first spring member mounted on the blade wrapper.
- a second spring member for compensating for this.
- the wiper blade according to the present invention is characterized in that the plurality of first spring members each formed in a rod shape are provided on the blade holder so as to be shifted from each other in the wiping direction, and a plurality of holding pieces for holding the blade wrapper are provided in the first spring. It is characterized by being fixedly arranged at predetermined intervals on the member.
- the wiper blade of the present invention is characterized in that the second spring member is a flat spring member mounted on the blade wrapper.
- the wiper blade by changing the characteristics of the second spring member mounted on the blade wrapper, the wiper blade can be adapted to window glasses having various curvatures. Can be improved. Further, according to the present invention, since the distribution pressure of the blade wrapper can be corrected by changing the characteristics of the second spring member mounted on the blade wrapper, the wiping performance of the wiper blade can be easily controlled. Can be. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is an explanatory view schematically showing a wiper device having a wiper blade according to an embodiment of the present invention.
- Fig. 2 (a) is a partially cutaway front view showing the details of the wiper blade on the DR side shown in Fig. 1
- Fig. 2 (b) is a partial view showing the details of the wiper blade on the AS side shown in Fig. 1. It is a notch front view.
- FIG. 3 (a) is a top view showing the wrapper holder on the DR side shown in FIG. 2 (a), and FIG. 3 (b) is a top view showing the wrapper holder on the AS side shown in FIG. 2 (b).
- FIG. 4 is a cross-sectional view taken along the line A_A in FIG.
- FIG. 5 is a perspective view showing details of the wrapper holder shown in FIG.
- FIGS. 6 (a) and 6 (b) are cross-sectional views each showing a modification of the wiper blade on the DR side shown in FIG. 2 (a).
- Fig. 7 (a) is a cross-sectional view showing the normal condition of the studs attached to the DR-side wrapper holder
- Fig. 7 (b) is the DR-side wrapper holder when an excessive bending force is applied in the reverse direction
- FIG. 7 (c) is a cross-sectional view showing the state of the DR-side wrapper holder when an excessive bending force is applied in the forward direction.
- Fig. 8 (a) is an explanatory diagram showing the combination of the rod-shaped spring member and the party bra in the wiper blade on the DR side. It is explanatory drawing which shows a combination.
- a vehicle 11 is provided with a wiper device 13 for wiping rain attached to a windshield, that is, a windshield 12, splashing from a preceding vehicle, etc., and securing a driver's view.
- the wiper device 13 is fixed to a wiper shaft 14 a rotatably supported by the vehicle 11 and is provided on the vehicle 11 so as to be swingable.
- the wiper arm 15 b on the passenger seat side, that is, the AS side, which is fixed to the wiper shaft 14 b rotatably supported on the have.
- These wiper shafts 14a, 14b are connected to a wiper motor 17 via a link mechanism 16, and when the wiper motor 17 operates, these wiper arms 15a, 15b swing within a predetermined angle range.
- the driver's seat side that is, the DR side wiper blade 18a is mounted at the tip of the wiper arm 15a on the DR side
- the wiper arm 18b on the AS side is attached to the tip end of the wiper arm 15b on the passenger side, that is, the wiper blade 18 on the AS side.
- a spring member such as a spring (not shown) is provided in each of the wipers 15a and 15b, and the respective wiper blades 18a and 18b receive a pressing force from the wiper arms 15a and 15b and receive a front force. It comes into resilient contact with the glass 12.
- the wiper blades 18a, 18b move the wiping range 12a, 12b between the upper turning position and the lower turning position located at the lower end of the windshield 12. Swings on the windshield 12 at, and wipes the front glass 12.
- Fig. 2 (a) is a partially cutaway front view showing the details of the wiper blade on the DR side shown in Fig. 1
- Fig. 2 (b) is a partially cutaway view showing the details of the wiper blade on the AS side shown in Fig. 1.
- Fig. 3 (a) is a top view showing the DR side rubber holder shown in Fig. 2 (a)
- Fig. 3 (b) is a top view showing the AS side wrapper holder shown in Fig. 2 (b).
- FIG. 4 is a sectional view taken along line AA in FIG. 2 (a)
- FIG. 5 is a perspective view showing details of the wrapper holder shown in FIG. 3 (a). As shown in FIG.
- the wiper blade 18a on the DR side has a blade wrapper 21a that directly contacts the windshield 12 and a driver side, that is, a wrapper holder 22a on the DR side that supports the blade wrapper 21a. In a state away from the windshield 12, that is, in a natural state, it is curved with a radius of curvature smaller than the radius of curvature of the windshield 12.
- the wiper blade 18b on the AS side has a blade wrapper 21b that directly contacts the windshield 12, and a passenger seat side supporting the blade wrapper 21b, that is, a wrapper holder 22 on the AS side.
- the length L 2 of the wiper blade 18 b on the AS side is the length L of the wiper blade 18 a on the DR side. 1 and is more strongly curved than the wiper blade 18a on the DR side, particularly at the longitudinal end side.
- the wiper blade 18a on the DR side and the wiper blade 18b on the AS side have basically the same structure except for the points described above, so the following describes the wiper blade 18a on the DR side first. I do.
- a support block 23 is provided at a substantially central portion in the longitudinal direction of the DR side wrapper holder 22a, and the support block 23 is provided on the support block 23.
- Two rod-shaped spring members 24 as first spring members are fixed to be displaced from each other in the moving direction when the wiper blade 18a performs the wiping operation on the windshield 12, that is, in the wiping direction.
- Each of the rod-shaped spring members 24 is formed in a substantially circular cross section, and is formed in an arc shape whose axis is curved with a smaller radius of curvature than the windshield 12.
- These rod-shaped spring members 24 are fixed to the support block 23 at substantially the center in the longitudinal direction, and protrude from both sides of the support block 23 by a predetermined length.
- the members 24 are fixed side by side at predetermined intervals. That is, the holding pieces 26 are connected at predetermined intervals by the rod-shaped spring members 24.
- a plurality of (for example, 12 in the present embodiment) holding pieces 26 are provided on the other side of the support block 23, and these holding pieces 26 are rod-shaped springs.
- the members 24 are fixed side by side at predetermined intervals. That is, the holding pieces 26 are connected at a predetermined interval by the rod-shaped spring members 24.
- these holding pieces 26 have a cross section having a base end wall 26a and a pair of side walls 26b, 26c substantially perpendicular to the base end wall 26a.
- the rod-shaped spring member 24 is formed in a C-shape, and penetrates one of the side wall portions 26b or the other side wall portion 26c.
- the rod-shaped spring member 24 is bent into a crank shape inside each of the side wall portions 26 b and 26 c. Fixed to 4. That is, the rod-shaped spring member 24 is It is connected and fixed to each other by a holding piece 26 as a material so that the relative position of each other is regulated, and it is elastically deformable in a direction perpendicular to the windshield 12 but is elastically deformable in the wiping direction. Is regulated.
- the rod-shaped spring member 24 is provided with a crank-shaped portion for fixing the holding piece 26.
- the present invention is not limited to this.
- a knurl or knurl May be provided.
- the rubber holder 22 a on the DR side is elastically deformable in a direction perpendicular to the windshield 12 with the support block 23 as a fulcrum.
- holding claws 26 d as holding portions are formed on the side walls 26 b and 26 c of each holding piece 26, and the blade wrappers 21 a are formed by these holding claws 26 d. Is held by each holding piece 26.
- the play wrapper 21 has a base portion 27 held by a holding piece 26 and an edge portion 28 for contacting and wiping the front glass 12, the shape of which is conventionally known as a tournament type. It has the same shape as the blade rubber used for the wiper blade.
- a holding groove 27 a is formed in the base 27, and by holding the holding claw 26 d of each holding piece 26 with the holding groove 27 a, the blade wrapper 21 a becomes the holding piece 2. 6 That is, it is held by the wrapper holder 2 2a on the DR side.
- the base part 27 and the edge part 28 are connected via a thin neck part 29, and the edge part 28 is tilted through the neck part 29 to contact the windshield 12. In this case, the contact angle is kept appropriate.
- the material of the play rubber 21a natural rubber / chloroprene rubber or the like is used, and a material in which natural rubber and chloroprene rubber are blended so as to combine the advantages of each material is also often used.
- Praedrano 21a is manufactured by extruding these materials, and has the same cross-sectional shape in the longitudinal direction.
- Mounting grooves 27b are formed on both sides of the blade wrapper 21a above the holding grooves 27a, and the mounting grooves 27b are each formed as a flat spring member. Bra 31 is attached. These party plastics 31 are previously formed to be curved at a predetermined curvature, and the blade wrappers 21 a are bent by the spring force of the parti- bler 31. About the function of this party bra 3 1 Will be described later.
- the play wrapper 2 la is supported by the holding claws 26 d formed on the holding member 26, which is a deformation regulating member fixed to the rod-shaped spring member 24.
- the play wrapper used for the conventionally known tournament type wiper blade can be used as it is, and its versatility can be improved. Since the blade wrapper 21a is detachably mounted on the holding piece 26, the blade wrapper 21a can be easily replaced.
- the support block 23 has a clip 32 attached to the wiper arm 15a on the DR side.
- the wiper blade 18a on the DR side supports the support block 23 on the wiper arm 15a on the DR side.
- the rod-shaped spring member 24 is elastically deformed by the pressing force from the wiper arm 15 a so that the wrapper holder 22 a on the DR side follows the curvature of the windshield 12. Then, the reaction force of the rod-shaped spring member 24 due to the elastic deformation is transmitted to the holding piece 26, and the DR side wrapper holder 2 2a generates a force for pressing the blade wrapper 21a against the windshield 12. Become.
- the blade wrapper 21a is provided with a parti- bler 31.
- a rod-shaped spring member 24 is attached to the blade wrapper 21a.
- the elastic force of the party bra 31 is applied.
- the reaction force of the rod-shaped spring member 24 that is discontinuously applied in the longitudinal direction of the blade wrapper 21 a is corrected by the elastic force of the party blade 31 that is continuously generated in the longitudinal direction, and the blade wrapper 2 1
- the pressure distribution of a on the windshield 12 is made uniform in the longitudinal direction.
- the pressing force from the wiper arm 15a on the DR side is The wrapper 21a is dispersedly added to the blade wrapper 21a by the material 24 and the partyr 31 and comes into contact with the windshield 12 with a predetermined distribution pressure characteristic.
- the wiper blade 18a on the DR side has fins 33 as fin members formed of, for example, hard rubber, and the fins 33 are attached to the respective holding pieces 26 to form the fins 33 on the DR side.
- the wrapper holder 2 covers the entirety of 2a.
- the cross-sectional shape of the wiper blade 18a on the DR side has excellent aerodynamic characteristics, and prevents the wiper blade 18a on the DR side from lifting up when the vehicle 11 is running at a high speed, for example. Can be improved. Further, since the wiper blade 18a on the DR side itself has a fin shape, the height of the wiper blade 18a on the DR side can be suppressed, and the field of view of the driver or the like can be improved.
- a rod-shaped spring member 24 having a substantially circular cross section is used as a spring member for distributing the pressing force from the wiper arm 15a on the DR side to the blade wrapper 21a. Occupies a small area in the cross-sectional area of the wiper blade 18a on the DR side, and when the cross-sectional shape of the wiper blade 18a on the DR side is set in consideration of aerodynamic characteristics, the degree of freedom in design is reduced. There is no. Therefore, it is possible to set the holding pieces 26 and the fins 33 to shapes optimal for aerodynamic characteristics.
- the elastic member that applies the pressing force of the DR-side wiper arm 15a to the blade wrapper 21a in a distributed manner is the bar-shaped spring member 24.
- the respective bar-shaped spring members 24 are arranged side by side with respect to the blade wrapper 21a in the wiping direction. That is, the rod-shaped spring members 24 are arranged side by side on one side and the other side of the blade wrapper 21a. Therefore, the height dimension of the DR side wiper blade 18a in the direction perpendicular to the windshield 12 can be reduced.
- the DR side wiper blade 18a can be formed to have a low height dimension perpendicular to the windshield 12, the DR side wiper blade 18a is formed. The visibility of the driver or the like in the vehicle 11 using the blade 18a can be improved.
- two bar-shaped spring members 24 are provided.
- a plurality of bar-shaped spring members 24 may be provided, for example, three bars as shown in FIG.
- the rod-shaped spring members 24 are arranged side by side on the wiping direction side of the blade wrapper 21a.
- the present invention is not limited to this.
- the width of the wiper blade 18a on the DR side in the wiping direction can be reduced.
- the rod-shaped spring members 24 are respectively disposed adjacent to one side and the other side of the blade rubber 21a, but the present invention is not limited to this.
- a plurality of rod-shaped spring members 24 may be provided side by side.
- the wrapper holder 22a on the DR side is covered with the fins 33, but is not limited to this.
- FIGS. 6 (a) and 6 (b) members corresponding to those described above are denoted by the same reference numerals.
- FIG. 7 (a) is a cross-sectional view showing the normal condition of the stopper attached to the DR-side rubber holder, and Fig. 7 (b) shows the DR side when an excessive bending force is applied in the reverse direction.
- FIG. 7C is a cross-sectional view illustrating a state of the wrapper holder, and FIG. 7C is a cross-sectional view illustrating a state of the DR-side wrapper holder when an excessive bending force is applied in the forward direction.
- the DR side wrapper holder 22a is provided with a stopper 34 as excessive deformation restricting means.
- Each of the stoppers 34 has a plurality of deformation restricting blocks 35 disposed between adjacent holding pieces 26 and a connecting band 36 connecting the deformation restricting blocks 35 to each other. One is provided on each side and the other side.
- each holding piece 26 has a U-shape at each end.
- An engagement portion 37 is formed, and each deformation restricting block 35 is arranged between adjacent holding pieces 26 so as to be engaged with these engagement portions 37.
- Two grooves 38 are formed in the base wall 26a of each holding piece 26 in the direction connecting the engaging portions 37, and the connecting band 36 is formed with these grooves 3 respectively. 8 are located.
- a through hole 39 is formed in each of the holding pieces 26 at a substantially central portion of the groove 38 so as to penetrate in a direction perpendicular to the groove 38, as shown in FIG. 7 (a).
- the connecting band portions 36 are slightly loosened in the through holes 39. I have.
- the stopper 34 prevents the wrapper holder 22a on the DR side from being excessively bent by causing interference with the engaging portion 37 when the rod-shaped spring member 24 is in the elastic deformation region. As a result, even if an excessive bending force is applied to the DR-side wiper blade 18a in the opening direction, the deformation of the rod-shaped spring member 24 is limited to within the elastic range, and plastic deformation is prevented.
- the rod-shaped spring member 24 is in a deformed state within the elastic deformation region, and does not reach the plastic deformation region. That is, when the rod-shaped spring member 24 is in the elastic deformation range, the stopper 34 is used as the deformation regulating block 35, that is, each holding piece Restrict the spread of 26 to more than the specified distance, and restrict excessive bending of the DR side wrapper holder 22a. As a result, even if an excessive bending force is applied to the wiper blade 18a on the DR side in the closing direction, the deformation of the rod-shaped spring member 24 is limited to an elastic range, and plastic deformation is prevented.
- the stopper 34 restricts the excessive bending of the DR-side wrapper holder 22a. By preventing plastic deformation of the spring member 24, the durability of the wiper blade 18a on the DR side can be improved.
- the plastic deformation of the rod-shaped spring member 24 is prevented by using the deformation restricting block 35 disposed between the adjacent holding pieces 26.
- the present invention is not limited to this.
- An interference part is formed on each of the adjacent holding pieces 26, and when an excessive bending force is applied to the wiper blade 18a on the DR side, the interference part of the adjacent holding pieces 26 directly interferes. Then, excessive bending may be restricted.
- the deformation restricting blocks 35 are connected to each other by the connecting band portion 36.
- the present invention is not limited to this.
- the excessive bending of one side of the side wrapper holder 22a may be restricted.
- a deformation restricting block 35 is provided on both sides of the bar-shaped spring member 24 on the side of the windshield 12 and on the opposite side of the windshield 12 so as to prevent deformation in both the opening direction and the closing direction. It may be regulated.
- the structure of the wiper blade 18b on the AS side is basically the same as that of the wiper blade 18a on the DR side.
- the usage and effects are the same as those of the aforementioned DR-side wiper blade 18a.
- the difference between the AS side wiper blade 18 b and the DR side wiper blade 18 a will be described.
- the same reference numerals are given to members corresponding to the above-described members.
- the wrapper holder for the wiper blade 18b on the AS side is based on the wrapper holder formed with the same structure as the wrapper holder 22a on the DR side, and is located at both ends from the wrapper holder By removing the two holding pieces 26, the shape becomes shorter than the DR side wrapper holder 22a. Is done. In other words, similarly to the wrapper holder 2 2a on the DR side, 12 holding pieces 26 are respectively fixed on both sides of the support block 23 to the rod-shaped spring member 24 at a predetermined interval.
- the rod-shaped spring member 24 is cut between the holding piece 26 on the side and the holding piece 26 adjacent thereto, and the other holding piece 26 on the foremost side and the holding piece 26 adjacent thereto are cut off.
- the AS-side wrapper holder 22b is formed to a predetermined length, that is, a dimension shorter by two holding pieces than the DR-side wrapper holder 22a. You do it.
- the wrapper holder 22a on the DR side used for the wiper blade 18a on the DR side may be cut by cutting the wrapper holder formed longer than the wrapper holder 22a on the DR side. For example, by cutting the rod-shaped spring member 24 between any two holding pieces 26 from a wrapper holder formed to a predetermined length, such as forming, and removing a predetermined number of holding pieces, many Different types of wrapper holders may be formed.
- Fig. 8 (a) is an explanatory view showing the combination of a rod-shaped spring member and a party bra on the wiper blade on the DR side
- Fig. 8 (b) is a combination of a rod-shaped spring member and a party bra on the wiper blade on the AS side.
- FIG. 8 (a) is an explanatory view showing the combination of a rod-shaped spring member and a party bra on the wiper blade on the DR side
- Fig. 8 (b) is a combination of a rod-shaped spring member and a party bra on the wiper blade on the AS side.
- the AS-side wiper blade 18b uses the AS-side wrapper holder 22 which has the same structure as the DR-side wrapper holder 22a but differs only in the length dimension.
- the wrap wrapper 21b used is shorter than the blade wrapper 21a used for the wiper blade 18a on the DR side according to the length of the wrapper holder 22b on the AS side. Further, the party blade 41 attached to the blade wrapper 21 b has a stronger curvature than the party blade 31 used for the wiper blade 18 a on the DR side. 18b is curved more strongly than the wiper blade 18a on the DR side.
- the rod-shaped spring member 24 forming the wrapper holder 22a on the DR side is curved with a smaller radius of curvature than the windshield 12, and is used for the wiper blade 18a on the DR side.
- the second spring member 31 mounted on the blade wrapper 21a a member having a larger radius of curvature and a smaller degree of curvature than the rod-shaped spring member 24 is used.
- the party 31 is formed in a thin plate shape in a direction perpendicular to the front glass 12, and is elastically deformable in a direction perpendicular to the windshield 12.
- the spring force of the rod-shaped spring member 24 is corrected by the spring force of the party 31. Is done.
- the combined spring force of the spring force of the rod-shaped spring member 24 and the spring force of the party 31 is applied to the blade wrapper 21a.
- the combined spring force sets the distribution pressure of the blade wrapper 21a on the windshield 12, and the blade wrapper 21a follows the windshield 12.
- the rod-shaped spring member 24 as the first spring member is also provided.
- the wrapper holder 22a on the DR side it is curved with a smaller radius of curvature than the windshield 12.
- the flat spring member or the party 41 as a second spring member attached to the blade wrapper 21 b used for the wiper blade 18 on the AS side is a member attached to the blade wrapper 21 a on the DR side. The one having a small radius of curvature is used for one tibra 31.
- the spring force of the rod-shaped spring member 24 is reduced to the DR-side wiper blade 18a.
- the wiper blade 18a is stronger than the wiper blade 18a, so that the wiper blade 18b on the AS side is more strongly curved than the wiper blade 18a on the DR side.
- a distribution pressure of the blade wrapper 21b on the windshield 12 is set by the combined spring force.
- the wiper blade 18b on the AS side can follow the windshield 12 with a sufficient distribution pressure even in a tightly curved portion on the side of the windshield.
- the wiper blades 18a and 18b the party mounted on the blade rubbers 21a and 21b with respect to the DR-side wrapper holder 22a and the AS-side wrapper holder 22b using the same rod-shaped spring member 24.
- the characteristics of these wiper blades 18a and 18b can be changed.
- the blade wrappers 2 la and 2 lb can be easily attached to and detached from the rubber holders 22 a and 22 b, it is easy to replace the party blades 31 and 41 with one having another characteristic.
- the present invention is not limited to this.
- the particle bra 31 attached to the blade wrapper 21a on the DR side may be replaced with one having a different characteristic so that the wiper blade 18a on the DR side can correspond to a glass surface having various curvatures.
- the wiper blades 18a and 18b by changing the characteristics of the party brassels 31 and 41 attached to the blade wrappers 2la and 21b, the wiper blades 18a and 18b can have various curvatures.
- the wiper blades 18a and 18b can be made more versatile because they can be used on glass surfaces.
- the wiper blades 18a and 18b are formed based on wrapper holders 22a and 22b using rod-shaped spring members 24 having predetermined characteristics. Since the characteristics of 18b can be changed in various ways, there is no need to prepare various types of rod-shaped spring members having different characteristics.
- the elastic force of the bar-shaped spring member 24 and the party blades 31 and 41 changes due to aging and the like, and the blade wrappers 21a and 21b change. If the distribution pressure of b on the windshield 12 is not appropriate, the distribution pressure of the blade wrappers 21a and 21b, that is, the wiping performance, can be easily changed by changing the parties 31 and 41. Can be controlled.
- the blade wrappers 2 1 and 2 1b are replaced by the party wrappers 31 and 41 having different characteristics. Since the distribution pressures of a and 21b can be easily adjusted, the wiping performance of the wiper blades 18a and 18b can be easily controlled.
- the party springs 31 and 41 are used as the flat spring members as the second spring member.
- the present invention is not limited to this, and a bar-shaped spring member or the like may be used. .
- the wrapper holder 2 on the DR side is made up of 24 holding pieces 26 made of a resin material.
- the holding piece is not limited to this, and the holding piece may be formed using metal or the like.
- the mounting portions of the arms 15a and 15b may also be formed as shown in the present embodiment. Not only the connection using the clip 32 but also a U-shaped arm or a connection part using a pawnette type arm may be used.
- the present invention can be applied when manufacturing various types of wiper blades corresponding to window glasses having different curvatures.
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Abstract
A driver’s side wiper blade (18a) has a driver’s side rubber holder with two bar-like spring members (24). Two vertebrae (31) are installed in a blade rubber (21a) supported by the driver’s side rubber holder. A front passenger’s side wiper blade (18b) has a front passenger’s side rubber holder with two bar-like spring members (24). A blade rubber (21b) supported by the front passenger’s side rubber holder has two vertebrae (41). The vertebrae (41) are formed with a curvature smaller than that of the vertebrae (31), and this results that the front passenger’s side wiper blade (18b) has a smaller curvature than the driver’s side wiper blade (18a).
Description
ワイパブレード 技術分野 Wiper blade Technical field
本発明は車両のウィンドガラス面を払拭するワイパブレードに関する。 背景技術 The present invention relates to a wiper blade for wiping a windshield of a vehicle. Background art
明 Light
自動車等の車両には、 ウィンドガラスに付着した雨、 雪、 虫、 前車の飛沫等の 付着物を払拭して運転者の視界を確保す田るためにワイパ装置が設けられている。 このようなワイパ装置は、 一般に、 電動モータにより揺動されるワイパアーム とワイパアームの先端部に装着されるワイパブレードとを有しており、 ワイパブ レードはワイパアームに内装されたスプリングによりウィンドガラス面に向けて 押え力が加えられた状態となっている。 そして、 ワイパアームが摇動するとワイ パブレードがガラス面上を往復運動して払拭動作が行われるようになっている。 良好な払拭性能を発揮させるためには、 ワイパアームからワイパブレードに加 えられる押え力をガラスに直接接触するブレードラパーの長手方向に分散させる 必要がある。 そのため、 ブレードラパーとワイパアームとの間に複数段に組み上 げられたレバーを設け、 このレバーを介して押え力を分散させるようにした所謂 トーナメント式のワイパブレードが開発されている。 しかし、 トーナメント式の ワイパブレードでは、 レバーを構成するために部品点数が增カ卩し、 また、 レバー 数が制限されて押え力を十分に分布させることができないなどの問題があった。 そこで、 従来のワイパブレードでは、 例えば特開平 6 _ 3 4 0 2 4 9号公報に 示されるように、 パーティブラ等の板ばね部材をワイパアームに装着し、 この板 ばね部材にブレードラパーを直接取り付け、 ワイパアームから加えられる押え力 をこの板ばね部材によりブレードラパー全体に分散させるようにしている。 また 、 この板ばね部材は長手方向に向けて幅や厚みが変化させられており、 払拭する ウインドガラス面に応じた分布圧をブレードラバーに対して与えるようになって いる。 Vehicles such as automobiles are equipped with a wiper device to wipe off extraneous matter, such as rain, snow, insects, and splashes from the vehicle ahead, that adheres to the windshield to secure the driver's view. Such a wiper device generally includes a wiper arm that is swung by an electric motor and a wiper blade that is attached to a tip end of the wiper arm. The pressing force is applied. When the wiper arm moves, the wiper blade reciprocates on the glass surface to perform the wiping operation. In order to exhibit good wiping performance, it is necessary to disperse the pressing force applied to the wiper blade from the wiper arm in the longitudinal direction of the blade wrapper that directly contacts the glass. Therefore, a so-called tournament-type wiper blade has been developed in which a plurality of levers are provided between the blade wrapper and the wiper arm, and the pressing force is dispersed through the lever. However, in the tournament type wiper blade, there were problems that the number of parts was reduced due to the configuration of the lever, and the number of levers was limited, so that the pressing force could not be sufficiently distributed. Therefore, in a conventional wiper blade, as shown in, for example, Japanese Patent Application Laid-Open No. 6-34049, a leaf spring member such as a party blade is attached to a wiper arm, and a blade wrapper is directly attached to this leaf spring member. The pressing force applied from the wiper arm is dispersed by the leaf spring member over the entire blade wrapper. Further, the width and thickness of the leaf spring member are changed in the longitudinal direction, so that a distribution pressure according to the surface of the window glass to be wiped is applied to the blade rubber.
車両に設けられるウィンドガラスは、 デザイン上の理由などから、 車種によつ
てその曲率が異なる場合が多い。 これに対して、 従来のワイパブレードではウイ ンドガラスに対するブレードラパーの分布圧は板ばね部材の特性により決まるこ とになるので、 所定の特性を有する板ばね部材を用いたワイパブレードは特定の 曲率のウィンドガラスに対してのみ有効な分布圧を発生させることになる。 そのため、 車種毎に専用の板ばね部材を用いたワイパプレードを設定する必要 があり、 このワイパブレードの汎用性を低下させることになつていた。 Depending on the vehicle type, the window glass installed on the vehicle The curvature is often different. On the other hand, in a conventional wiper blade, the distribution pressure of the blade wrapper with respect to the window glass is determined by the characteristics of the leaf spring member.Therefore, the wiper blade using the leaf spring member having a predetermined characteristic has a specific curvature. An effective distribution pressure is generated only for the window glass. For this reason, it is necessary to set a wiper blade using a dedicated leaf spring member for each vehicle type, which reduces the versatility of the wiper blade.
本発明の目的は、 曲率が異なるウィンドガラスに対するワイパプレードの汎用 性を向上させることにある。 発明の開示 An object of the present invention is to improve the versatility of a wiper blade for window glasses having different curvatures. Disclosure of the invention
本発明のワイパブレードは、 車両に揺動自在に設けられたワイパアームに装着 され、 ウィンドガラス上を揺動運動して前記ウィンドガラスを払拭するワイパプ レードであって、 前記ウィンドガラスに接するブレードラパーと、 前記ブレード ラパーを支持するラパーホルダに設けられ、 前記ワイパアームの押え力を前記ブ レードラパーに分散して加える第 1のばね部材と、 前記ブレードラパーに装着さ れ、 前記第 1のばね部材のばね力を補正する第 2のばね部材とを有することを特 徴とする。 The wiper blade according to the present invention is a wiper blade mounted on a wiper arm that is swingably provided on a vehicle, and swings on a wind glass to wipe the wind glass, the wiper blade being in contact with the wind glass. A first spring member provided on a wrapper holder supporting the blade wrapper, for applying the pressing force of the wiper arm to the blade wrapper in a distributed manner; and a spring force of the first spring member mounted on the blade wrapper. And a second spring member for compensating for this.
本発明のワイパブレードは、 それぞれ棒状に形成された複数の前記第 1のばね 部材を互いに払拭方向にずらして前記ブレードホルダに設け、 前記ブレードラパ 一を保持する複数の保持駒を前記第 1のばね部材に所定の間隔を空けて並べて固 定したことを特徴とする。 The wiper blade according to the present invention is characterized in that the plurality of first spring members each formed in a rod shape are provided on the blade holder so as to be shifted from each other in the wiping direction, and a plurality of holding pieces for holding the blade wrapper are provided in the first spring. It is characterized by being fixedly arranged at predetermined intervals on the member.
本発明のワイパプレードは、 前記第 2のばね部材を前記ブレードラパーに装着 される平板ばね部材としたことを特徴とする。 The wiper blade of the present invention is characterized in that the second spring member is a flat spring member mounted on the blade wrapper.
本発明にあっては、 ブレードラパーに装着される第 2のばね部材の特性を変え ることにより、 このワイパブレードを様々な曲率のウィンドガラスに対応させる ことができるので、 このワイパブレードの汎用性を向上させることができる。 また、 本発明にあっては、 ブレードラパーに装着される第 2のばね部材の特性 を変えることによりブレードラパーの分布圧を補正することができるので、 この ワイパプレードの払拭性能を容易に制御することができる。
図面の簡単な説明 According to the present invention, by changing the characteristics of the second spring member mounted on the blade wrapper, the wiper blade can be adapted to window glasses having various curvatures. Can be improved. Further, according to the present invention, since the distribution pressure of the blade wrapper can be corrected by changing the characteristics of the second spring member mounted on the blade wrapper, the wiping performance of the wiper blade can be easily controlled. Can be. BRIEF DESCRIPTION OF THE FIGURES
図 1は本発明の一実施の形態であるワイパプレードを備えたワイパ装置の概略 を示す説明図である。 FIG. 1 is an explanatory view schematically showing a wiper device having a wiper blade according to an embodiment of the present invention.
図 2 (a) は図 1に示す DR側のワイパブレードの詳細を示す一部切り欠き正 面図であり、 図 2 (b) は図 1に示す AS側のワイパブレードの詳細を示す一部 切り欠き正面図である。 Fig. 2 (a) is a partially cutaway front view showing the details of the wiper blade on the DR side shown in Fig. 1, and Fig. 2 (b) is a partial view showing the details of the wiper blade on the AS side shown in Fig. 1. It is a notch front view.
図 3 (a) は図 2 (a) に示す D R側のラパーホルダを示す上面図であり、 図 3 (b) は図 2 (b) に示す AS側のラパーホルダを示す上面図である。 FIG. 3 (a) is a top view showing the wrapper holder on the DR side shown in FIG. 2 (a), and FIG. 3 (b) is a top view showing the wrapper holder on the AS side shown in FIG. 2 (b).
図 4は図 2 (a) における A_A線に沿う断面図である。 FIG. 4 is a cross-sectional view taken along the line A_A in FIG.
図 5は図 3 (a) に示すラパーホルダの詳細を示す斜視図である。 FIG. 5 is a perspective view showing details of the wrapper holder shown in FIG.
図 6 (a) 、 (b) はそれぞれ図 2 (a) に示す D R側のワイパプレードの変 形例を示す断面図である。 FIGS. 6 (a) and 6 (b) are cross-sectional views each showing a modification of the wiper blade on the DR side shown in FIG. 2 (a).
図 7 (a) は DR側のラパーホルダに装着されたストツバの正常状態のときを 示す断面図であり、 図 7 (b) は逆方向に過大な曲げ力が加えられたときの DR 側のラパーホルダの状態を示す断面図であり、 図 7 (c) は順方向に過大な曲げ 力が加えられたときの D R側のラパーホルダの状態を示す断面図である。 Fig. 7 (a) is a cross-sectional view showing the normal condition of the studs attached to the DR-side wrapper holder, and Fig. 7 (b) is the DR-side wrapper holder when an excessive bending force is applied in the reverse direction. FIG. 7 (c) is a cross-sectional view showing the state of the DR-side wrapper holder when an excessive bending force is applied in the forward direction.
図 8 (a) は DR側のワイパブレードにおける棒状ばね部材とパーティブラと の組み合わせを示す説明図であり、 図 8 (b) は AS側のワイパブレードにおけ る棒状ばね部材とパーティブラとの組み合わせを示す説明図である。 発明を実施するための最良の形態 Fig. 8 (a) is an explanatory diagram showing the combination of the rod-shaped spring member and the party bra in the wiper blade on the DR side. It is explanatory drawing which shows a combination. BEST MODE FOR CARRYING OUT THE INVENTION
図 1に示すように、 車両 11にはウインドガラスつまりフロントガラス 12に 付着した雨や前車の飛沫等を拭き取って運転者の視界を確保するためにワイパ装 置 13が設けられている。 As shown in FIG. 1, a vehicle 11 is provided with a wiper device 13 for wiping rain attached to a windshield, that is, a windshield 12, splashing from a preceding vehicle, etc., and securing a driver's view.
このワイパ装置 13は車両 11に回転自在に支持されたワイパ軸 14 aに固定 されて車両 11に揺動自在に設けられた運転席側つまり DR側のワイパアーム 1 5 aと、 同様に、 車両 11に回転自在に支持されたワイパ軸 14 bに固定されて 車両 11に揺動自在に設けられた助手席側つまり AS側のワイパアーム 15 bと
を有している。 これらのワイパ軸 14 a, 14 bはリンク機構 16を介してワイ パモータ 17に連結されており、 ワイパモータ 17が作動するとこれらのワイパ アーム 15 a, 15 bは所定の角度範囲で揺動する。 The wiper device 13 is fixed to a wiper shaft 14 a rotatably supported by the vehicle 11 and is provided on the vehicle 11 so as to be swingable. The wiper arm 15 b on the passenger seat side, that is, the AS side, which is fixed to the wiper shaft 14 b rotatably supported on the have. These wiper shafts 14a, 14b are connected to a wiper motor 17 via a link mechanism 16, and when the wiper motor 17 operates, these wiper arms 15a, 15b swing within a predetermined angle range.
DR側のワイパアーム 15 aの先端部には運転席側つまり DR側のワイパブレ ード 18 aが装着されており、 A S側のワイパアーム 15 bの先端部には助手席 側つまり A S側のワイパブレード 18 bが装着されている。 それぞれのヮィパァ ーム 15 a, 15 b内には図示しないスプリング等のばね部材が内装されており 、 それぞれのワイパブレード 18 a, 18 bはワイパアーム 15 a, 15 bから 押え力を加えられてフロントガラス 12に弾圧的に接触するようになっている。 そして、 ワイパアーム 15 a, 15 bが揺動すると、 これらのワイパブレード 1 8 a, 18 bは上反転位置とフロントガラス 12の下端に位置する下反転位置と の間の払拭範囲 12 a, 12 bにおいてフロントガラス 12上を揺動運動し、 フ 口ントガラス 12を払拭する。 The driver's seat side, that is, the DR side wiper blade 18a is mounted at the tip of the wiper arm 15a on the DR side, and the wiper arm 18b on the AS side is attached to the tip end of the wiper arm 15b on the passenger side, that is, the wiper blade 18 on the AS side. b is attached. A spring member such as a spring (not shown) is provided in each of the wipers 15a and 15b, and the respective wiper blades 18a and 18b receive a pressing force from the wiper arms 15a and 15b and receive a front force. It comes into resilient contact with the glass 12. When the wiper arms 15a, 15b swing, the wiper blades 18a, 18b move the wiping range 12a, 12b between the upper turning position and the lower turning position located at the lower end of the windshield 12. Swings on the windshield 12 at, and wipes the front glass 12.
図 2 (a) は図 1に示す DR側のワイパプレードの詳細を示す一部切り欠き正 面図であり、 図 2 (b) は図 1に示す AS側のワイパブレードの詳細を示す一部 切り欠き正面図である。 また、 図 3 (a) は図 2 (a) に示す DR側のラバーホ ルダを示す上面図であり、 図 3 (b) は図 2 (b) に示す AS側のラパーホルダ を示す上面図である。 さらに、 図 4は図 2 (a) における A— A線に沿う断面図 であり、 図 5は図 3 (a) に示すラパーホルダの詳細を示す斜視図である。 図 2 (a) に示すように、 DR側のワイパブレード 18 aはフロントガラス 1 2に直接接触するブレードラパー 21 aとこのブレードラパー 21 aを支持する 運転席側つまり DR側のラパーホルダ 22 aとを有しており、 フロントガラス 1 2から離れた状態つまり自然状態ではフロントガラス 12の曲率半径より小さい 曲率半径で湾曲している。 同様に、 図 2 (b) に示すように、 AS側のワイパブ レード 18 bはフロントガラス 12に直接接触するブレードラパー 21 bとこの ブレードラパー 21 bを支持する助手席側つまり AS側のラパーホルダ 22 bと を有しており、 フロントガラス 12から離れた状態つまり自然状態ではフロント ガラス 12の曲率半径より小さい曲率半径で湾曲している。 また、 AS側のワイ パプレード 18 bの長さ寸法 L 2は DR側のワイパブレード 18 aの長さ寸法 L
1より短く形成されており、 また、 特に長手方向先端側において D R側のワイパ ブレード 1 8 aより強く湾曲している。 Fig. 2 (a) is a partially cutaway front view showing the details of the wiper blade on the DR side shown in Fig. 1, and Fig. 2 (b) is a partially cutaway view showing the details of the wiper blade on the AS side shown in Fig. 1. It is a chipped front view. Fig. 3 (a) is a top view showing the DR side rubber holder shown in Fig. 2 (a), and Fig. 3 (b) is a top view showing the AS side wrapper holder shown in Fig. 2 (b). . Further, FIG. 4 is a sectional view taken along line AA in FIG. 2 (a), and FIG. 5 is a perspective view showing details of the wrapper holder shown in FIG. 3 (a). As shown in FIG. 2 (a), the wiper blade 18a on the DR side has a blade wrapper 21a that directly contacts the windshield 12 and a driver side, that is, a wrapper holder 22a on the DR side that supports the blade wrapper 21a. In a state away from the windshield 12, that is, in a natural state, it is curved with a radius of curvature smaller than the radius of curvature of the windshield 12. Similarly, as shown in FIG. 2 (b), the wiper blade 18b on the AS side has a blade wrapper 21b that directly contacts the windshield 12, and a passenger seat side supporting the blade wrapper 21b, that is, a wrapper holder 22 on the AS side. b, and are curved with a radius of curvature smaller than the radius of curvature of the windshield 12 in a state away from the windshield 12, that is, in a natural state. The length L 2 of the wiper blade 18 b on the AS side is the length L of the wiper blade 18 a on the DR side. 1 and is more strongly curved than the wiper blade 18a on the DR side, particularly at the longitudinal end side.
D R側のワイパブレード 1 8 aと A S側のワイパプレード 1 8 bとは、 前述の 点以外は基本的に同様の構造となっているので、 以下ではまず、 D R側のワイパ ブレード 1 8 aについて説明する。 The wiper blade 18a on the DR side and the wiper blade 18b on the AS side have basically the same structure except for the points described above, so the following describes the wiper blade 18a on the DR side first. I do.
図 3 ( a ) に示すように、 D R側のラパーホルダ 2 2 aの長手方向略中央部に は支持部としての支持プロック 2 3が設けられており、 支持プロック 2 3にはこ の D R側のワイパブレード 1 8 aがフロントガラス 1 2上を払拭動作する際の移 動方向つまり払拭方向に互いにずれて第 1のばね部材としての 2本の棒状ばね部 材 2 4が固定されている。 これらの棒状ばね部材 2 4はそれぞれ断面略円形に形 成されており、 また、 その軸心がフロントガラス 1 2より小さい曲率半径で湾曲 する弓状に形成されている。 そして、 これらの棒状ばね部材 2 4は長手方向の略 中央部にて支持プロック 2 3に固定されており、 支持プロック 2 3の両側から所 定の長さで突出している。 As shown in FIG. 3 (a), a support block 23 is provided at a substantially central portion in the longitudinal direction of the DR side wrapper holder 22a, and the support block 23 is provided on the support block 23. Two rod-shaped spring members 24 as first spring members are fixed to be displaced from each other in the moving direction when the wiper blade 18a performs the wiping operation on the windshield 12, that is, in the wiping direction. Each of the rod-shaped spring members 24 is formed in a substantially circular cross section, and is formed in an arc shape whose axis is curved with a smaller radius of curvature than the windshield 12. These rod-shaped spring members 24 are fixed to the support block 23 at substantially the center in the longitudinal direction, and protrude from both sides of the support block 23 by a predetermined length.
支持プロック 2 3の一方側には架橋部材ゃェレメントとも呼ばれる複数 (例え ば、 本実施の形態においては 1 2個) の保持駒 2 6が設けられており、 これらの 保持駒 2 6は棒状ばね部材 2 4に所定の間隔を空けて並んで固定されている。 つ まり、 各保持駒 2 6は棒状ばね部材 2 4により所定の間隔を空けて連結されてい る。 同様に、 この支持プロック 2 3の他方側には複数 (例えば、 本実施の形態に おいては 1 2個) の保持駒 2 6が設けられており、 これらの保持駒 2 6は棒状ば ね部材 2 4に所定の間隔を空けて並んで固定されている。 つまり、 各保持駒 2 6 は棒状ばね部材 2 4により所定の間隔を空けて連結されている。 On one side of the support block 23, a plurality of (for example, 12 in this embodiment) holding pieces 26, which are also called bridge member elements, are provided, and these holding pieces 26 are rod-shaped springs. The members 24 are fixed side by side at predetermined intervals. That is, the holding pieces 26 are connected at predetermined intervals by the rod-shaped spring members 24. Similarly, a plurality of (for example, 12 in the present embodiment) holding pieces 26 are provided on the other side of the support block 23, and these holding pieces 26 are rod-shaped springs. The members 24 are fixed side by side at predetermined intervals. That is, the holding pieces 26 are connected at a predetermined interval by the rod-shaped spring members 24.
図 4に示すように、 これらの保持駒 2 6は基端壁部 2 6 aとこの基端壁部 2 6 aに略垂直となる一対の側壁部 2 6 b, 2 6 cとを有する断面 Cの字形状に形成 されており、 棒状ばね部材 2 4はそれぞれ一方の側壁部 2 6 bもしくは他方の側 壁部 2 6 cを貫通している。 As shown in FIG. 4, these holding pieces 26 have a cross section having a base end wall 26a and a pair of side walls 26b, 26c substantially perpendicular to the base end wall 26a. The rod-shaped spring member 24 is formed in a C-shape, and penetrates one of the side wall portions 26b or the other side wall portion 26c.
図 5に破線で示すように、 各側壁部 2 6 b, 2 6 cの内部においては棒状ばね 部材 2 4はクランク形状に曲げられており、 これにより保持駒 2 6はそれぞれの 棒状ばね部材 2 4に固定されている。 つまり、 棒状ばね部材 2 4は、 変形規制部
材としての保持駒 2 6により互いに連結固定されて互いの相対位置が規制された 状態とされており、 フロントガラス 1 2に垂直な方向には弾性変形可能であるが 、 払拭方向への弾性変形は規制されている。 As shown by the broken line in FIG. 5, the rod-shaped spring member 24 is bent into a crank shape inside each of the side wall portions 26 b and 26 c. Fixed to 4. That is, the rod-shaped spring member 24 is It is connected and fixed to each other by a holding piece 26 as a material so that the relative position of each other is regulated, and it is elastically deformable in a direction perpendicular to the windshield 12 but is elastically deformable in the wiping direction. Is regulated.
なお、 本実施の形態においては、 保持駒 2 6を固定するために棒状ばね部材 2 4.にはクランク状に曲げられた部分が設けられているが、 これに限らず、 たとえ ばナールやローレツトを設けるようにしてもよい。 In the present embodiment, the rod-shaped spring member 24 is provided with a crank-shaped portion for fixing the holding piece 26. However, the present invention is not limited to this. For example, a knurl or knurl May be provided.
このような構造により、 D R側のラバーホルダ 2 2 aは支持ブロック 2 3を支 点としてフロントガラス 1 2に垂直な方向に弾性変形自在となっている。 With such a structure, the rubber holder 22 a on the DR side is elastically deformable in a direction perpendicular to the windshield 12 with the support block 23 as a fulcrum.
また、 それぞれの保持駒 2 6の各側壁部 2 6 b, 2 6 cには保持部としての保 持爪 2 6 dが形成されており、 これらの保持爪 2 6 dによりブレードラパー 2 1 aは各保持駒 2 6に保持されるようになっている。 Further, holding claws 26 d as holding portions are formed on the side walls 26 b and 26 c of each holding piece 26, and the blade wrappers 21 a are formed by these holding claws 26 d. Is held by each holding piece 26.
プレードラパー 2 1は保持駒 2 6によって保持される基部 2 7と、 フロントガ ラス 1 2に接触して払拭を行うエッジ部 2 8とを有しており、 その形状は従来か ら知られたトーナメント式のワイパブレードに用いられるブレードラバーと同様 の形状となっている。 基部 2 7には保持溝 2 7 aが形成されており、 この保持溝 2 7 aに各保持駒 2 6の保持爪 2 6 dを係合させることで、 ブレードラパー 2 1 aは保持駒 2 6つまり D R側のラパーホルダ 2 2 aに保持される。 基部 2 7とェ ッジ部 2 8とは細く形成されたネック部 2 9を介して接続されており、 エツジ部 2 8はネック部 2 9を介して傾動してフロントガラス 1 2に接触した際に適切な 接触角に保たれる。 なお、 プレードラバー 2 1 aの材質としては、 天然ゴムゃク ロロプレンゴムなどが用いられ、 それぞれの材質の長所を合わせ持つように天然 ゴムとクロロプレンゴムとを配合した材料も多く用いられる。 プレードラノ 一 2 1 aはこれらの材料を押出成形することによって製作され、 長手方向に渡って同 一の断面形状を有している。 The play wrapper 21 has a base portion 27 held by a holding piece 26 and an edge portion 28 for contacting and wiping the front glass 12, the shape of which is conventionally known as a tournament type. It has the same shape as the blade rubber used for the wiper blade. A holding groove 27 a is formed in the base 27, and by holding the holding claw 26 d of each holding piece 26 with the holding groove 27 a, the blade wrapper 21 a becomes the holding piece 2. 6 That is, it is held by the wrapper holder 2 2a on the DR side. The base part 27 and the edge part 28 are connected via a thin neck part 29, and the edge part 28 is tilted through the neck part 29 to contact the windshield 12. In this case, the contact angle is kept appropriate. As the material of the play rubber 21a, natural rubber / chloroprene rubber or the like is used, and a material in which natural rubber and chloroprene rubber are blended so as to combine the advantages of each material is also often used. Praedrano 21a is manufactured by extruding these materials, and has the same cross-sectional shape in the longitudinal direction.
また、 ブレードラパー 2 1 aの保持溝 2 7 aの上方における両側面部にはそれ ぞれ装着溝 2 7 bが形成されており、 これらの装着溝 2 7 bにはそれぞれ平板ば ね部材としてパーティブラ 3 1が装着されている。 これらのパーティプラ 3 1は 予め所定の曲率で湾曲して形成されており、 ブレードラパー 2 1 aはこのパーテ ィブラ 3 1のばね力により曲げられている。 このパーティブラ 3 1の作用につい
ては後述する。 Mounting grooves 27b are formed on both sides of the blade wrapper 21a above the holding grooves 27a, and the mounting grooves 27b are each formed as a flat spring member. Bra 31 is attached. These party plastics 31 are previously formed to be curved at a predetermined curvature, and the blade wrappers 21 a are bent by the spring force of the parti- bler 31. About the function of this party bra 3 1 Will be described later.
このように、 この D R側のワイパブレード 1 8 aでは、 プレードラパー 2 l a を棒状ばね部材 2 4に固定された変形規制部材っまり保持駒 2 6に形成された保 持爪 2 6 dによって支持するようにしたので、 従来から知られたトーナメント式 のワイパブレードに用いられるプレードラパーをそのまま使用することができ、 その汎用性を向上させることができる。 また、 ブレードラパー 2 1 aは保持駒 2 6に着脱自在に装着されるので、 ブレードラパー 2 1 aの交換が容易となる。 支持ブロック 2 3には D R側のワイパアーム 1 5 aに取り付けられるクリップ 3 2が設けられており、 この D R側のワイパブレード 1 8 aはこの支持プロック 2 3が D R側のワイパアーム 1 5 aに支持された状態となって D R側のワイパァ ーム 1 5 aに装着され、 D R側のワイパアーム 1 5 aからの押え力はこの支持ブ ロック 2 3に加えられる。 そして、 自然状態では D R側のラパーホルダ 2 2 aに 支持されたブレードラパー 2 1 aは D R側のラパーホルダ 2 2 aとともに棒状ば ね部材 2 4の弾性力により湾曲しているが、 ブレードラパー 2 1 aがフロントガ ラス 1 2に接触して D R側のワイパアーム 1 5 aからの押え力が支持ブロック 2 3に加えられたときには、 D R側のラパーホルダ 2 2 aがフロントガラス 1 2の 曲率に合わせて弹性変形してブレードラパー 2 1 aはフロントガラス 1 2に接す る。 つまり、 ワイパアーム 1 5 aからの押圧力により棒状ばね部材 2 4は D R側 のラパーホルダ 2 2 aがフロントガラス 1 2の曲率に追従するように弾性変形す る。 そして、 その弾性変形による棒状ばね部材 2 4の反力が保持駒 2 6に伝達さ れて、 D R側のラパーホルダ 2 2 aはブレードラパー 2 1 aをフロントガラス 1 2に押し付ける力を生み出すことになる。 また、 ブレードラパー 2 1 aにはパー ティブラ 3 1が装着されており、 D R側のラパーホルダ 2 2 aにワイパアーム 1 5 aの押え力が加えられるとブレードラパー 2 1 aには棒状ばね部材 2 4の反力 に加えてパーティブラ 3 1の弾性力が加えられることになる。 これにより、 ブレ 一ドラパー 2 1 aの長手方向に非連続的に加わる棒状ばね部材 2 4の反力は長手 方向に連続的に発生するパーティブラ 3 1の弾性力により補正され、 ブレードラ パー 2 1 aのフロントガラス 1 2に対する圧力分布は長手方向に均一化されるこ とになる。 このように、 D R側のワイパアーム 1 5 aからの押え力が棒状ばね部
材 2 4とパーティブラ 3 1とによりブレードラパー 2 1 aに分散して加えられ、 プレードラパー 2 1 aはフロントガラス 1 2に対して所定の分布圧特性を有して 接触する。 As described above, in the DR-side wiper blade 18 a, the play wrapper 2 la is supported by the holding claws 26 d formed on the holding member 26, which is a deformation regulating member fixed to the rod-shaped spring member 24. As a result, the play wrapper used for the conventionally known tournament type wiper blade can be used as it is, and its versatility can be improved. Since the blade wrapper 21a is detachably mounted on the holding piece 26, the blade wrapper 21a can be easily replaced. The support block 23 has a clip 32 attached to the wiper arm 15a on the DR side.The wiper blade 18a on the DR side supports the support block 23 on the wiper arm 15a on the DR side. In this state, it is attached to the wiper arm 15a on the DR side, and the pressing force from the wiper arm 15a on the DR side is applied to this support block 23. In the natural state, the blade wrapper 21a supported by the wrapper holder 22 on the DR side is curved by the elastic force of the rod-shaped spring member 24 together with the wrapper holder 22a on the DR side. When a touches the front glass 12 and the pressing force from the wiper arm 15 a on the DR side is applied to the support block 23, the wrapper holder 2 2 a on the DR side adjusts to the curvature of the windshield 12. The blade wrapper 2 1 a deforms and contacts the windshield 12. That is, the rod-shaped spring member 24 is elastically deformed by the pressing force from the wiper arm 15 a so that the wrapper holder 22 a on the DR side follows the curvature of the windshield 12. Then, the reaction force of the rod-shaped spring member 24 due to the elastic deformation is transmitted to the holding piece 26, and the DR side wrapper holder 2 2a generates a force for pressing the blade wrapper 21a against the windshield 12. Become. The blade wrapper 21a is provided with a parti- bler 31. When the pressing force of the wiper arm 15a is applied to the wrapper holder 22a on the DR side, a rod-shaped spring member 24 is attached to the blade wrapper 21a. In addition to the reaction force, the elastic force of the party bra 31 is applied. As a result, the reaction force of the rod-shaped spring member 24 that is discontinuously applied in the longitudinal direction of the blade wrapper 21 a is corrected by the elastic force of the party blade 31 that is continuously generated in the longitudinal direction, and the blade wrapper 2 1 The pressure distribution of a on the windshield 12 is made uniform in the longitudinal direction. As described above, the pressing force from the wiper arm 15a on the DR side is The wrapper 21a is dispersedly added to the blade wrapper 21a by the material 24 and the partyr 31 and comes into contact with the windshield 12 with a predetermined distribution pressure characteristic.
D R側のワイパブレード 1 8 aは例えば硬質のゴム等で形成されたフィン部材 としてのフィン 3 3を有しており、 このフィン 3 3は各保持駒 2 6に取り付けら れた状態で D R側のラパーホルダ 2 2 aの全体を覆うようになっている。 The wiper blade 18a on the DR side has fins 33 as fin members formed of, for example, hard rubber, and the fins 33 are attached to the respective holding pieces 26 to form the fins 33 on the DR side. The wrapper holder 2 covers the entirety of 2a.
したがって、 この D R側のワイパブレード 1 8 aの断面形状は空力特性に優れ た形状となり、 車両 1 1が高速で走行した際などに D R側のワイパブレード 1 8 aの浮き上がりを防止して払拭性能を向上させることができる。 また、 D R側の ワイパブレード 1 8 a自体がフィン形状となるので、 この D R側のワイパプレー ド 1 8 aの高さを抑えて、 運転者等の視界を向上させることができる。 Therefore, the cross-sectional shape of the wiper blade 18a on the DR side has excellent aerodynamic characteristics, and prevents the wiper blade 18a on the DR side from lifting up when the vehicle 11 is running at a high speed, for example. Can be improved. Further, since the wiper blade 18a on the DR side itself has a fin shape, the height of the wiper blade 18a on the DR side can be suppressed, and the field of view of the driver or the like can be improved.
このとき、 D R側のワイパアーム 1 5 aからの押え力をブレードラパー 2 1 a に分散して加えるばね部材として断面略円形の棒状ばね部材 2 4が用いられてい るので、 この棒状ばね部材 2 4が D R側のワイパブレード 1 8 aの断面積に占め る割合は小さく、 この D R側のワイパブレード 1 8 aを空力特性を考慮した断面 形状に設定する際に、 設計の自由度を低下させることがない。 したがって、 保持 駒 2 6やフィン 3 3を空力特性に最適な形状に設定することができる。 At this time, a rod-shaped spring member 24 having a substantially circular cross section is used as a spring member for distributing the pressing force from the wiper arm 15a on the DR side to the blade wrapper 21a. Occupies a small area in the cross-sectional area of the wiper blade 18a on the DR side, and when the cross-sectional shape of the wiper blade 18a on the DR side is set in consideration of aerodynamic characteristics, the degree of freedom in design is reduced. There is no. Therefore, it is possible to set the holding pieces 26 and the fins 33 to shapes optimal for aerodynamic characteristics.
このように、 この D R側のワイパブレード 1 8 aでは、 D R側のワイパアーム 1 5 aの押え力をブレードラパー 2 1 aに分散して加える弾性部材を棒状ばね部 材 2 4としたので、 この D R側のワイパブレード 1 8 aの断面形状に占める棒状 ばね部材 2 4の面積を小さくして、 この D R側のワイパブレード 1 8 aの断面形 状の設計の自由度を向上させることができる。 As described above, in the DR-side wiper blade 18a, the elastic member that applies the pressing force of the DR-side wiper arm 15a to the blade wrapper 21a in a distributed manner is the bar-shaped spring member 24. By reducing the area of the rod-shaped spring member 24 occupying the cross-sectional shape of the wiper blade 18a on the DR side, the degree of freedom in designing the cross-sectional shape of the wiper blade 18a on the DR side can be improved.
また、 図示するように、 それぞれの棒状ばね部材 2 4は、 それぞれブレードラ パー 2 1 aに対して払拭方向側に並べて配置されている。 つまり、 棒状ばね部材 2 4はそれぞれブレードラパー 2 1 aの一方の側部と他方の側部に並んで配置さ れている。 したがって、 この D R側のワイパブレード 1 8 aのフロントガラス 1 2に垂直な方向となる高さ寸法を低く形成することができる。 Further, as shown in the figure, the respective bar-shaped spring members 24 are arranged side by side with respect to the blade wrapper 21a in the wiping direction. That is, the rod-shaped spring members 24 are arranged side by side on one side and the other side of the blade wrapper 21a. Therefore, the height dimension of the DR side wiper blade 18a in the direction perpendicular to the windshield 12 can be reduced.
このように、 この D R側のワイパブレード 1 8 aは、 フロントガラス 1 2に垂 直な方向となる高さ寸法を低く形成することができるので、 この D R側のワイパ
ブレード 18 aを用いた車両 1 1における運転者等の視界を向上させることがで さる。 As described above, since the DR side wiper blade 18a can be formed to have a low height dimension perpendicular to the windshield 12, the DR side wiper blade 18a is formed. The visibility of the driver or the like in the vehicle 11 using the blade 18a can be improved.
なお、 本実施の形態においては、 棒状ばね部材 24は 2本設けられているが、 これに限らず、 例えば図 6 (a) に示すように 3本設けるなど複数本設けられて いればよい。 In the present embodiment, two bar-shaped spring members 24 are provided. However, the present invention is not limited to this, and a plurality of bar-shaped spring members 24 may be provided, for example, three bars as shown in FIG.
また、 本実施の形態においては、 棒状ばね部材 24はブレードラパー 21 aの 払拭方向側に並んで配置されているが、 これに限らず、 例えば図 6 (a) に示す ようにブレードラパー 21 aのフロントガラス 12とは反対側となる上方に設け るようにしてもよい。 この場合、 DR側のワイパブレード 18 aの払拭方向側の 幅寸法を小さくすることができる。 Further, in the present embodiment, the rod-shaped spring members 24 are arranged side by side on the wiping direction side of the blade wrapper 21a. However, the present invention is not limited to this. For example, as shown in FIG. It may be provided above the opposite side of the windshield 12. In this case, the width of the wiper blade 18a on the DR side in the wiping direction can be reduced.
さらに、 本実施の形態においては、 棒状ばね部材 24はそれぞれブレードラバ 一 21 aの一方の側部と他方の側部に隣接して配置されているが、 これに限らず 、 一方の側部に複数の棒状ばね部材 24を並べて設けるようにしてもよい。 さらに、 本実施の形態においては、 DR側のラパーホルダ 22 aはフィン 33 により覆われているが、 これに限らず、 例えば図 6 (b) に示すように、 保持駒 26自体の外形をフィン形状に形成するようにしてもよい。 なお、 図 6 (a) 、 図 6 (b) においては前述した部材に対応する部材には同一の符号が付されてい る。 Furthermore, in the present embodiment, the rod-shaped spring members 24 are respectively disposed adjacent to one side and the other side of the blade rubber 21a, but the present invention is not limited to this. A plurality of rod-shaped spring members 24 may be provided side by side. Further, in the present embodiment, the wrapper holder 22a on the DR side is covered with the fins 33, but is not limited to this. For example, as shown in FIG. May be formed. In FIGS. 6 (a) and 6 (b), members corresponding to those described above are denoted by the same reference numerals.
図 7 (a) は DR側のラバーホルダに装着されたストツバの正常状態のときを 示す断面図であり、 図 7 (b) は逆方向に過大な曲げ力が加えられたときの DR 側のラパーホルダの状態を示す断面図であり、 図 7 (c) は順方向に過大な曲げ 力が加えられたときの D R側のラパーホルダの状態を示す断面図である。 Fig. 7 (a) is a cross-sectional view showing the normal condition of the stopper attached to the DR-side rubber holder, and Fig. 7 (b) shows the DR side when an excessive bending force is applied in the reverse direction. FIG. 7C is a cross-sectional view illustrating a state of the wrapper holder, and FIG. 7C is a cross-sectional view illustrating a state of the DR-side wrapper holder when an excessive bending force is applied in the forward direction.
図 3 (a) に示すように、 DR側のラパーホルダ 22 aには過大変形規制手段 としてのストッパ 34が設けられている。 As shown in FIG. 3 (a), the DR side wrapper holder 22a is provided with a stopper 34 as excessive deformation restricting means.
このストッパ 34はそれぞれ隣り合う保持駒 26の間に配置される複数の変形 規制プロック 35とこれらの変形規制プロック 35を互いに連結する連結帯部 3 6とを有しており、 支持プロック 23の一方側と他方側にそれぞれ 1つ設けられ ている。 Each of the stoppers 34 has a plurality of deformation restricting blocks 35 disposed between adjacent holding pieces 26 and a connecting band 36 connecting the deformation restricting blocks 35 to each other. One is provided on each side and the other side.
図 5に示すように、 それぞれの保持駒 26の両端部にはそれぞれコの字形状の
係合部 3 7が形成されており、 それぞれの変形規制ブロック 3 5は隣り合う保持 駒 2 6の間にこれらの係合部 3 7に係合した状態で配置されている。 それぞれの 保持駒 2 6の基端壁部 2 6 aには各係合部 3 7を結ぶ方向に 2本の溝部 3 8が形 成されており、 連結帯部 3 6はそれぞれこれらの溝部 3 8に配置されている。 ま た、 それぞれの保持駒 2 6には溝部 3 8の略中央部において溝部 3 8に対して垂 直方向に貫通した貫通孔 3 9が形成されており、 図 7 ( a ) に示すように、 この D R側のワイパブレード 1 8 aがフロントガラス 1 2に接している状態のとき、 つまり正常状態のときには、 連結帯部 3 6はそれぞれこの貫通孔 3 9において若 干弛んだ状態となっている。 As shown in FIG. 5, each holding piece 26 has a U-shape at each end. An engagement portion 37 is formed, and each deformation restricting block 35 is arranged between adjacent holding pieces 26 so as to be engaged with these engagement portions 37. Two grooves 38 are formed in the base wall 26a of each holding piece 26 in the direction connecting the engaging portions 37, and the connecting band 36 is formed with these grooves 3 respectively. 8 are located. Further, a through hole 39 is formed in each of the holding pieces 26 at a substantially central portion of the groove 38 so as to penetrate in a direction perpendicular to the groove 38, as shown in FIG. 7 (a). However, when the DR-side wiper blade 18 a is in contact with the windshield 12, that is, in a normal state, the connecting band portions 36 are slightly loosened in the through holes 39. I have.
そして、 図 7 ( b ) に示すように、 D R側のラパーホルダ 2 2 aに逆方向つま' りフロントガラス 1 2に対して開く方向に過大な曲げ力が加えられたときには、 棒状ばね部材 2 4を支点として両係合部 3 7の間隔は狭まり、 これらの係合部 3 7の間に位置する変形規制プロック 3 5がこれらの係合部 3 7に挟み込まれて干 渉し、 隣り合う保持駒 2 6が所定の間隔以下に近づくことが規制される。 このと き、 棒状ばね部材 2 4は弾性変形域内で変形した状態となっており、 塑性変形域 に達することがない。 つまり、 このストッパ 3 4は棒状ばね部材 2 4が弾性変形 域にあるときに係合部 3 7との干渉を生じて D R側のラパーホルダ 2 2 aが過度 に曲げられることを規制する。 これにより、 D R側のワイパブレード 1 8 aに開 く方向に過大な曲げ力が加えられても、 棒状ばね部材 2 4の変形は弾性域内に制 限され、 塑性変形することが防止される。 Then, as shown in FIG. 7 (b), when an excessive bending force is applied to the DR side wrapper holder 2 2a in the reverse direction to open the windshield 12, the rod-shaped spring member 2 4 With the fulcrum as a fulcrum, the distance between the two engaging portions 37 is reduced, and the deformation restricting block 35 located between these engaging portions 37 is interposed between these engaging portions 37 and interferes with each other, thereby holding the adjacent holding members. It is regulated that the pieces 26 approach the predetermined interval or less. At this time, the rod-shaped spring member 24 is in a deformed state within the elastic deformation range, and does not reach the plastic deformation range. That is, the stopper 34 prevents the wrapper holder 22a on the DR side from being excessively bent by causing interference with the engaging portion 37 when the rod-shaped spring member 24 is in the elastic deformation region. As a result, even if an excessive bending force is applied to the DR-side wiper blade 18a in the opening direction, the deformation of the rod-shaped spring member 24 is limited to within the elastic range, and plastic deformation is prevented.
反対に、 図 7 ( c ) に示すように、 D R側のラパーホルダ 2 2 aが順方向つま りフロントガラス 1 2に対して閉じる方向に過大な曲げカが加えられたときには 、 棒状ばね部材 2 4を支点として両係合部 3 7の間隔は広がり、 各変形規制プロ ック 3 5は各保持駒 2 6とともに棒状ばね部材 2 4を支点として互いに離れる方 向に移動する。 そして、 これに伴い、 各連結帯部 3 6の弛みが減少し、 この連結 帯部 3 6に張力が生じて隣り合う変形規制ブロック 3 5の間隔がそれ以上広がる ことが規制される。 このとき、 棒状ばね部材 2 4は弾性変形域内で変形した状態 となっており、 塑性変形域に達することがない。 つまり、 このストッパ 3 4は棒 状ばね部材 2 4が弾性変形域にあるときに変形規制プロック 3 5つまり各保持駒
2 6の間隔が所定距離以上に広がるのを規制して D R側のラパーホルダ 2 2 aが 過度に曲げられるのを規制する。 これにより、 D R側のワイパプレード 1 8 aに 閉じる方向に過大な曲げ力が加えられても、 棒状ばね部材 2 4の変形は弾性域内 に制限され、 塑性変形することが防止される。 Conversely, as shown in FIG. 7 (c), when the DR side wrapper holder 2 2a is forwardly bent, that is, when excessive bending force is applied in the closing direction with respect to the windshield 12, the rod-shaped spring member 2 4 With the fulcrum as a fulcrum, the distance between the two engaging portions 37 is widened, and each deformation regulating block 35 moves together with each of the holding pieces 26 in a direction away from each other with the rod-shaped spring member 24 as a fulcrum. As a result, the looseness of each of the connecting strips 36 is reduced, and tension is generated in the connecting strips 36 so that the distance between the adjacent deformation restriction blocks 35 is further increased. At this time, the rod-shaped spring member 24 is in a deformed state within the elastic deformation region, and does not reach the plastic deformation region. That is, when the rod-shaped spring member 24 is in the elastic deformation range, the stopper 34 is used as the deformation regulating block 35, that is, each holding piece Restrict the spread of 26 to more than the specified distance, and restrict excessive bending of the DR side wrapper holder 22a. As a result, even if an excessive bending force is applied to the wiper blade 18a on the DR side in the closing direction, the deformation of the rod-shaped spring member 24 is limited to an elastic range, and plastic deformation is prevented.
このように、 この D R側のワイパブレード 1 8 aでは、 過大な曲げ力が加えら れた場合にはストッパ 3 4により D R側のラパーホルダ 2 2 aの過大な曲げが規 制されるので、 棒状ばね部材 2 4の塑性変形を防止して、 この D R側のワイパプ レード 1 8 aの耐久性を向上させることができる。 As described above, in the DR-side wiper blade 18a, if an excessive bending force is applied, the stopper 34 restricts the excessive bending of the DR-side wrapper holder 22a. By preventing plastic deformation of the spring member 24, the durability of the wiper blade 18a on the DR side can be improved.
なお、 本実施の形態においては、 隣り合う保持駒 2 6の間に配置される変形規 制プロック 3 5を用いて棒状ばね部材 2 4の塑性変形を防止しているが、 これに 限らず、 隣り合う各保持駒 2 6にそれぞれ干渉部を形成し、 D R側のワイパブレ ード 1 8 aに過大な曲げ力が加えられたときに、 隣り合う保持駒 2 6の干渉部同 士が直接干渉して過大な曲げを規制するようにしてもよい。 In the present embodiment, the plastic deformation of the rod-shaped spring member 24 is prevented by using the deformation restricting block 35 disposed between the adjacent holding pieces 26. However, the present invention is not limited to this. An interference part is formed on each of the adjacent holding pieces 26, and when an excessive bending force is applied to the wiper blade 18a on the DR side, the interference part of the adjacent holding pieces 26 directly interferes. Then, excessive bending may be restricted.
また、 本実施の形態においては、 各変形規制プロック 3 5は連結帯部 3 6によ り互いに連結されているが、 これに限らず、 それぞれの変形規制プロック 3 5を 個別に設けて、 D R側のラパーホルダ 2 2 aの一方側の過大な曲げを規制するよ うにしてもよい。 また、 この場合、 棒状ばね部材 2 4に対してフロントガラス 1 2側とフロントガラス 1 2とは逆側の両側に変形規制プロック 3 5を設けて、 開 く方向と閉じる方向の両方の変形を規制するようにしてもよい。 Further, in the present embodiment, the deformation restricting blocks 35 are connected to each other by the connecting band portion 36. However, the present invention is not limited to this. The excessive bending of one side of the side wrapper holder 22a may be restricted. In this case, a deformation restricting block 35 is provided on both sides of the bar-shaped spring member 24 on the side of the windshield 12 and on the opposite side of the windshield 12 so as to prevent deformation in both the opening direction and the closing direction. It may be regulated.
一方、 図 2 ( b ) 、 図 3 ( b ) に示すように、 A S側のワイパブレード 1 8 b の構造は D R側のワイパブレード 1 8 aと基本的には同様となっており、 その作 用や効果についても前述の D R側のワイパブレード 1 8 aと同様となっている。 以下には、 A S側のワイパプレード 1 8 bについて D R側のワイパブレード 1 8 aと相違する点を説明する。 なお、 図 2 ( b ) 、 図 3 ( b ) においては、 前述 した部材に対応する部材には同一の符号が付されている。 On the other hand, as shown in Fig. 2 (b) and Fig. 3 (b), the structure of the wiper blade 18b on the AS side is basically the same as that of the wiper blade 18a on the DR side. The usage and effects are the same as those of the aforementioned DR-side wiper blade 18a. Hereinafter, the difference between the AS side wiper blade 18 b and the DR side wiper blade 18 a will be described. In FIGS. 2 (b) and 3 (b), the same reference numerals are given to members corresponding to the above-described members.
A S側のワイパブレード 1 8 bのラパーホルダつまり A S側のラパーホルダ 2 2 bは、 D R側のラパーホルダ 2 2 aと同一の構造にて形成されたラパーホルダ を基にして、 そのラパーホルダからその両端に位置する 2つの保持駒 2 6を取り 除くことにより、 D R側のラパーホルダ 2 2 aよりその長さ寸法が短い形状に形
成される。 つまり、 D R側のラパーホルダ 2 2 aと同様に支持ブロック 2 3の両 側にそれぞれ 1 2個の保持駒 2 6が所定の間隔で棒状ばね部材 2 4に固定された ラパーホルダから、 一方の最先端側にある保持駒 2 6とそれに隣接する保持駒 2 6との間において棒状ばね部材 2 4を切断し、 また、 他方の最先端側にある保持 駒 2 6とそれに隣接する保持駒 2 6との間において棒状ばね部材 2 4を切断する ことにより、 A S側のラパーホルダ 2 2 bを所定の長さ寸法、 つまり D R側のラ パーホルダ 2 2 aに対して保持駒 2つ分だけ短い寸法に形成するのである。 したがって、 長さの異なる D R側と A S側のワイパブレード 1 8 a , 1 8 bを 製造する際に、 D R側のワイパプレード 1 8 aまたは A S側のワイパブレード 1 8 bに対応する長さ寸法の異なる 2種類の棒状ばね部材 2 4を用意して、 これら 長さ寸法の異なる棒状ばね部材 2 4を用いて長さ寸法の異なる 2種類のラパーホ ルダを製造する必要がない。 つまり、 D R側のラパーホルダ 2 2 aを製造、 保管 しておけば、 これを基に容易に A S側のラパーホルダ 2 2 bを製造することがで きる。 このとき、 棒状ばね部材 2 4は断面円形に形成されているので、 パーティ ブラ等の平板ばね部材に対してその切断は容易である。 The wrapper holder for the wiper blade 18b on the AS side, that is, the wrapper holder 2 2b on the AS side, is based on the wrapper holder formed with the same structure as the wrapper holder 22a on the DR side, and is located at both ends from the wrapper holder By removing the two holding pieces 26, the shape becomes shorter than the DR side wrapper holder 22a. Is done. In other words, similarly to the wrapper holder 2 2a on the DR side, 12 holding pieces 26 are respectively fixed on both sides of the support block 23 to the rod-shaped spring member 24 at a predetermined interval. The rod-shaped spring member 24 is cut between the holding piece 26 on the side and the holding piece 26 adjacent thereto, and the other holding piece 26 on the foremost side and the holding piece 26 adjacent thereto are cut off. By cutting the rod-shaped spring member 24 between the two, the AS-side wrapper holder 22b is formed to a predetermined length, that is, a dimension shorter by two holding pieces than the DR-side wrapper holder 22a. You do it. Therefore, when manufacturing the wiper blades 18a and 18b on the DR side and the AS side having different lengths, when manufacturing the wiper blade 18a on the DR side or the wiper blade 18b on the AS side It is not necessary to prepare two different types of rod-shaped spring members 24 and manufacture two types of wrapper holders having different lengths by using the rod-shaped spring members 24 having different lengths. In other words, if the wrapper holder 22a on the DR side is manufactured and stored, the wrapper holder 22b on the AS side can be easily manufactured based on this. At this time, since the bar-shaped spring member 24 is formed to have a circular cross section, it is easy to cut the flat spring member such as a party spring.
なお、 本実施の形態においては、 D R側のワイパブレード 1 8 aに合わせた長 さ寸法に形成されたラバーホルダを A S側のワイパブレード 1 8 bの長さ寸法に 合わせて短く形成する場合を示しているが、 これに限らず、 例えば、 D R側のヮ ィパブレード 1 8 aに用いられる D R側のラパーホルダ 2 2 aを、 この D R側の ラパーホルダ 2 2 aより長く形成されたラパーホルダを切断して形成するなど、 所定の長さに形成されたラパーホルダから任意の 2つの保持駒 2 6間で棒状ばね 部材 2 4を切断して所定の数の保持駒を取り除くことにより、 長さ寸法の異なる 多種類のラパーホルダを形成するようにしてもよい。 In the present embodiment, a case where the rubber holder formed to have a length corresponding to the wiper blade 18a on the DR side is formed short according to the length of the wiper blade 18b on the AS side is described. However, the present invention is not limited to this.For example, the wrapper holder 22a on the DR side used for the wiper blade 18a on the DR side may be cut by cutting the wrapper holder formed longer than the wrapper holder 22a on the DR side. For example, by cutting the rod-shaped spring member 24 between any two holding pieces 26 from a wrapper holder formed to a predetermined length, such as forming, and removing a predetermined number of holding pieces, many Different types of wrapper holders may be formed.
このように、 このワイパブレード 1 8 a, 1 8 bでは、 2つの保持駒 2 6の間 において棒状ばね部材 2 4を切断するのみでラパーホルダの長さ寸法を変えるこ とができるので、 長さの異なるワイパブレードを容易に製造することができる。 図 8 ( a ) は D R側のワイパブレードにおける棒状ばね部材とパーティブラと の組み合わせを示す説明図であり、 図 8 ( b ) は A S側のワイパプレードにおけ る棒状ばね部材とパーティブラとの組み合わせを示す説明図である。
AS側のワイパブレード 18 bには、 前述のように、 DR側のラパーホルダ 2 2 aと同一の構造であって長さ寸法のみが異なる AS側のラパーホルダ 22わが 用いられているが、 これに装着されるプレードラパー 21 bは、 AS側のラパー ホルダ 22 bの長さ寸法に合わせて DR側のワイパブレード 18 aに用いられる ブレードラパー 21 aより短い寸法のものが用いられている。 そして、 このブレ 一ドラパー 21 bに装着されるパーティブラ 41は DR側のワイパブレード 18 aに用いられるパーティブラ 31に対して湾曲の強いものとなっており、 これに より、 AS側のワイパブレード 18 bは DR側のワイパプレード 18 aより強く 湾曲するようになっている。 As described above, in the wiper blades 18a and 18b, the length of the wrapper holder can be changed only by cutting the rod-shaped spring member 24 between the two holding pieces 26. Different wiper blades can be easily manufactured. Fig. 8 (a) is an explanatory view showing the combination of a rod-shaped spring member and a party bra on the wiper blade on the DR side, and Fig. 8 (b) is a combination of a rod-shaped spring member and a party bra on the wiper blade on the AS side. FIG. As described above, the AS-side wiper blade 18b uses the AS-side wrapper holder 22 which has the same structure as the DR-side wrapper holder 22a but differs only in the length dimension. The wrap wrapper 21b used is shorter than the blade wrapper 21a used for the wiper blade 18a on the DR side according to the length of the wrapper holder 22b on the AS side. Further, the party blade 41 attached to the blade wrapper 21 b has a stronger curvature than the party blade 31 used for the wiper blade 18 a on the DR side. 18b is curved more strongly than the wiper blade 18a on the DR side.
図 8 (a) に示すように、 DR側のラパーホルダ 22 aを形成する棒状ばね部 材 24はフロントガラス 12より小さい曲率半径で湾曲しており、 また、 DR側 のワイパブレード 18 aに用いられるブレードラパー 21 aに装着される第 2の ばね部材としてのパーティブラ 31は棒状ばね部材 24よりその曲率半径が大き く、 湾曲度合いが少ないものが用いられている。 このパーティブラ 31はフロン トガラス 12に垂直な方向に薄い平板状に形成されており、 フロントガラス 12 に垂直な方向に弾性変形自在となっている。 したがって、 この DR側のワイパブ レード 18 aがフロントガラス 12に接して DR側のワイパアーム 15 aから押 え力が加えられたときには、 棒状ばね部材 24のばね力はこのパーティブラ 31 のばね力により補正される。 つまり、 DR側のワイパァ一ム 15 aからの押え力 が加えられたときには、 ブレードラパー 21 aには棒状ばね部材 24のばね力と パーティブラ 31のばね力との合成ばね力が加えられた状態となり、 この合成ば ね力によりこのブレードラパー 21 aのフロントガラス 12に対する分布圧が設 定され、 ブレードラパー 21 aはフロントガラス 12に追従する。 As shown in FIG. 8A, the rod-shaped spring member 24 forming the wrapper holder 22a on the DR side is curved with a smaller radius of curvature than the windshield 12, and is used for the wiper blade 18a on the DR side. As the second spring member 31 mounted on the blade wrapper 21a, a member having a larger radius of curvature and a smaller degree of curvature than the rod-shaped spring member 24 is used. The party 31 is formed in a thin plate shape in a direction perpendicular to the front glass 12, and is elastically deformable in a direction perpendicular to the windshield 12. Therefore, when the wiper blade 18a on the DR side comes into contact with the windshield 12 and a pressing force is applied from the wiper arm 15a on the DR side, the spring force of the rod-shaped spring member 24 is corrected by the spring force of the party 31. Is done. In other words, when the pressing force from the wiper arm 15a on the DR side is applied, the combined spring force of the spring force of the rod-shaped spring member 24 and the spring force of the party 31 is applied to the blade wrapper 21a. The combined spring force sets the distribution pressure of the blade wrapper 21a on the windshield 12, and the blade wrapper 21a follows the windshield 12.
一方、 図 8 (b) に示すように、 AS側のラパーホルダ 22 bは DR側のラバ 一ホルダ 22 aを基に形成されているので、 その第 1のばね部材としての棒状ば ね部材 24も DR側のラパーホルダ 22 aと同様に、 フロントガラス 12より小 さい曲率半径で湾曲している。 これに対して、 AS側のワイパブレード 18 に 用いられるブレードラパー 21 bに装着される第 2のばね部材としての平板ばね 部材つまりパーティブラ 41は、 DR側のブレードラパー 21 aに装着されるパ
一ティブラ 31に対してその曲率半径が小さいものが用いられている。 したがつ て、 この AS側のワイパブレード 18 bがフロントガラス 12に接して AS側の ワイパアーム 15 bから押え力が加えられたときには、 棒状ばね部材 24のばね 力は DR側のワイパブレード 18 aの場合よりも強くこのパーティブラ 41のば ね力により補正され、 つまり AS側のワイパブレード 18 bにおける棒状ばね部 材 24のばね力とパーティブラ 41のばね力との合成ばね力は DR側のワイパプ レード 18 aの場合より強くなり、 その結果 A S側のワイパブレード 18 bは D R側のワイパプレード 18 aより強く湾曲することになる。 そして、 AS側のヮ ィパアーム 15 bから押え力が加えられたときには、 この合成ばね力によりブレ 一ドラパー 21 bのフロントガラス 12に対する分布圧が設定されることになり 、 下反転位置においてフロントガラス 12の側部における湾曲のきつい部分にあ つても、 AS側のワイパブレード 18 bは十分な分布圧でフロントガラス 12に 追従することができる。 On the other hand, as shown in FIG. 8 (b), since the wrapper holder 22b on the AS side is formed based on the rubber holder 22a on the DR side, the rod-shaped spring member 24 as the first spring member is also provided. Like the wrapper holder 22a on the DR side, it is curved with a smaller radius of curvature than the windshield 12. On the other hand, the flat spring member or the party 41 as a second spring member attached to the blade wrapper 21 b used for the wiper blade 18 on the AS side is a member attached to the blade wrapper 21 a on the DR side. The one having a small radius of curvature is used for one tibra 31. Therefore, when the AS-side wiper blade 18b comes into contact with the windshield 12 and a pressing force is applied from the AS-side wiper arm 15b, the spring force of the rod-shaped spring member 24 is reduced to the DR-side wiper blade 18a. This is more strongly compensated by the spring force of this party 41, that is, the combined spring force of the bar-shaped spring member 24 and the spring force of the party 41 on the wiper blade 18b on the AS side is The wiper blade 18a is stronger than the wiper blade 18a, so that the wiper blade 18b on the AS side is more strongly curved than the wiper blade 18a on the DR side. When a holding force is applied from the AS-side hyperarm 15b, a distribution pressure of the blade wrapper 21b on the windshield 12 is set by the combined spring force. The wiper blade 18b on the AS side can follow the windshield 12 with a sufficient distribution pressure even in a tightly curved portion on the side of the windshield.
つまり、 このワイパブレード 18 a, 18 bでは、 同一の棒状ばね部材 24を 用いた DR側のラパーホルダ 22 aと AS側のラパーホルダ 22 bに対して、 ブ レードラバー 21 a, 21 bに装着されるパーティブラ 31, 41の特性を変え ることにより、 これらのワイパブレード 18 a, 18 bの特性を変化させること ができるようになつている。 また、 ブレードラパー 2 l a, 2 l bは容易にラバ 一ホルダ 22 a, 22 bに対して着脱することができるので、 パーティブラ 31 , 41を他の特性のものに交換することは容易である。 なお、 本実施の形態にお いては、 DR側のワイパブレード 18 aに対して AS側のワイパブレード 18 b に異なる特性のパーティブラ 41を用いた場合を示しているが、 これに限らず、 例えば、 DR側のブレードラパー 21 aに装着されるパーティブラ 31を特性の 異なるものに交換して、 この DR側のワイパプレード 18 aを様々な曲率のガラ ス面に対応させるようにしてもよい。 That is, in the wiper blades 18a and 18b, the party mounted on the blade rubbers 21a and 21b with respect to the DR-side wrapper holder 22a and the AS-side wrapper holder 22b using the same rod-shaped spring member 24. By changing the characteristics of the bras 31 and 41, the characteristics of these wiper blades 18a and 18b can be changed. Further, since the blade wrappers 2 la and 2 lb can be easily attached to and detached from the rubber holders 22 a and 22 b, it is easy to replace the party blades 31 and 41 with one having another characteristic. In the present embodiment, the case where the party 41 having different characteristics is used for the wiper blade 18b on the AS side with respect to the wiper blade 18a on the DR side is shown, but the present invention is not limited to this. For example, the particle bra 31 attached to the blade wrapper 21a on the DR side may be replaced with one having a different characteristic so that the wiper blade 18a on the DR side can correspond to a glass surface having various curvatures.
このように、 このワイパブレード 18 a, 18 bでは、 ブレードラパー 2 l a , 21 bに装着されるパーティブラ 31, 41の特性を変えることにより、 この ワイパブレード 18 a, 18 bを様々な曲率のガラス面に対応させることができ るので、 このワイパブレード 18 a, 18 bの汎用性を向上させることができる
。 また、 このワイパブレ一ド 1 8 a, 1 8 bでは、 所定の特性を有する棒状ばね 部材 2 4が用いられたラパーホルダ 2 2 a , 2 2 bを基にして、 このワイパブレ ード 1 8 a, 1 8 bの特性を様々に変えることができるので、 特性の異なる多種 類の棒状ばね部材を用意する必要がない。 Thus, in the wiper blades 18a and 18b, by changing the characteristics of the party brassels 31 and 41 attached to the blade wrappers 2la and 21b, the wiper blades 18a and 18b can have various curvatures. The wiper blades 18a and 18b can be made more versatile because they can be used on glass surfaces. . Further, in the wiper blades 18a and 18b, the wiper blades 18a and 18b are formed based on wrapper holders 22a and 22b using rod-shaped spring members 24 having predetermined characteristics. Since the characteristics of 18b can be changed in various ways, there is no need to prepare various types of rod-shaped spring members having different characteristics.
また、 このワイパブレード 1 8 a, 1 8 bでは、 経年変ィ匕等により、 棒状ばね 部材 2 4やパーティブラ 3 1, 4 1の弾性力が変化して、 ブレードラパー 2 1 a , 2 1 bのフロントガラス 1 2に対する分布圧が適正では無くなった場合等には 、 このパーティブラ 3 1, 4 1を変更することにより、 ブレードラパー 2 1 a, 2 1 bの分布圧つまり払拭性能を容易に制御することができる。 In the wiper blades 18a and 18b, the elastic force of the bar-shaped spring member 24 and the party blades 31 and 41 changes due to aging and the like, and the blade wrappers 21a and 21b change. If the distribution pressure of b on the windshield 12 is not appropriate, the distribution pressure of the blade wrappers 21a and 21b, that is, the wiping performance, can be easily changed by changing the parties 31 and 41. Can be controlled.
このように、 このワイパブレード 1 8 a, 1 8 bでは、 ブレードラパー 2 l a , 2 1 bに装着されるパーティブラ 3 1, 4 1を特性の異なるものに交換するこ とによりブレードラパー 2 1 a , 2 1 bの分布圧を容易に調整することができる ので、 このワイパブレード 1 8 a, 1 8 bの払拭性能を容易に制御することがで きる。 Thus, in the wiper blades 18a and 18b, the blade wrappers 2 1 and 2 1b are replaced by the party wrappers 31 and 41 having different characteristics. Since the distribution pressures of a and 21b can be easily adjusted, the wiping performance of the wiper blades 18a and 18b can be easily controlled.
なお、 本実施の形態においては、 第 2のばね部材として平板ばね部材としての パーティブラ 3 1, 4 1が用いられているが、 これに限らず、 棒状に形成された ばね部材等としてもよい。 In the present embodiment, the party springs 31 and 41 are used as the flat spring members as the second spring member. However, the present invention is not limited to this, and a bar-shaped spring member or the like may be used. .
本発明は前記実施の形態に限定されるものではなく、 その要旨を逸脱しない範 囲で種々変更可能であることはいうまでもない。 たとえば、 前記実施の形態にお いては、 樹脂材料からなる 2 4個の保持駒 2 6によって D R側のラパーホルダ 2 The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the scope of the invention. For example, in the above embodiment, the wrapper holder 2 on the DR side is made up of 24 holding pieces 26 made of a resin material.
2 aを形成しているが、 これに限らず、 金属等を用いて保持駒を形成してもよい また、 アーム 1 5 a , 1 5 bの取付部に関しても、 本実施の形態に示すような クリップ 3 2による結合だけでなく、 U形状タイプのアームや、 パョネットタイ プのアームによる結合部を使用してもよい。 産業上の利用可能性 Although 2a is formed, the holding piece is not limited to this, and the holding piece may be formed using metal or the like.The mounting portions of the arms 15a and 15b may also be formed as shown in the present embodiment. Not only the connection using the clip 32 but also a U-shaped arm or a connection part using a pawnette type arm may be used. Industrial applicability
本発明は、 それぞれ曲率が異なるウインドガラスに対応する多種類のワイパブ レードを製造する際に適用することができる。
The present invention can be applied when manufacturing various types of wiper blades corresponding to window glasses having different curvatures.
Claims
1 . 車両に揺動自在に設けられたワイパアームに装着され、 ウィンドガラス上 を揺動運動して前記ウインドガラスを払拭するワイパブレードであって、 前記ウィンドガラスに接するブレードラパーと、 1. A wiper blade mounted on a wiper arm swingably provided on a vehicle and oscillating on a window glass to wipe the window glass, and a blade wrapper in contact with the window glass;
前記ブレードラパーを支持するラパーホルダに設けられ、 前記ワイパアームの 押え力を前記プレードラパーに分散して加える第 1のばね部材と、 A first spring member provided on a wrapper holder that supports the blade wrapper, and applying a pressing force of the wiper arm to the play wrapper in a distributed manner;
前記ブレードラパーに装着され、 前記第 1のばね部材のばね力を補正する第 2 のばね部材とを有することを特徴とするワイパブレード。 A second spring member mounted on the blade wrapper and correcting a spring force of the first spring member.
2 . 請求項 1記載のワイパブレードにおいて、 それぞれ棒状に形成された複数 の前記第 1のばね部材を互いに払拭方向にずらして前記ブレードホルダに設け、 前記ブレードラパーを保持する複数の保持駒を前記第 1のばね部材に所定の間隔 を空けて並べて固定したことを特徴とするワイパブレード。 2. The wiper blade according to claim 1, wherein the plurality of first spring members each formed in a rod shape are provided on the blade holder so as to be shifted from each other in a wiping direction, and the plurality of holding pieces for holding the blade wrapper are provided. A wiper blade fixed to a first spring member side by side at a predetermined interval.
3 . 請求項 1記載のワイパブレードにおいて、 前記第 2のばね部材を前記ブレ 一ドラパーに装着される平板ばね部材としたことを特徴とするワイパブレード。
3. The wiper blade according to claim 1, wherein the second spring member is a flat spring member mounted on the blade wrapper.
Priority Applications (1)
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JP2004560645A JPWO2004054860A1 (en) | 2002-12-17 | 2003-12-16 | Wiper blade |
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JP2002365752 | 2002-12-17 | ||
JP2002-365752 | 2002-12-17 |
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PCT/JP2003/016119 WO2004054860A1 (en) | 2002-12-17 | 2003-12-16 | Wiper blade |
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Cited By (9)
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FR2852566A1 (en) * | 2003-02-14 | 2004-09-24 | Kcw Corp | WINDSCREEN WIPER BLADE ASSEMBLY FOR A MOTOR VEHICLE |
JP2008126853A (en) * | 2006-11-21 | 2008-06-05 | Ichikoh Ind Ltd | Wiper blade |
JP2008230340A (en) * | 2007-03-19 | 2008-10-02 | Mitsuba Corp | Wiper blade |
WO2009153135A1 (en) * | 2008-06-19 | 2009-12-23 | Nv Bekaert Sa | Vertebra for wiper with at least two wire elements |
US8141198B2 (en) | 2005-10-10 | 2012-03-27 | Robert Bosch Gmbh | Windscreen wiper arm |
WO2012090635A1 (en) * | 2010-12-27 | 2012-07-05 | 株式会社ミツバ | Wiper blade |
JP2012136149A (en) * | 2010-12-27 | 2012-07-19 | Mitsuba Corp | Wiper blade |
JP2012136150A (en) * | 2010-12-27 | 2012-07-19 | Mitsuba Corp | Wiper blade |
WO2013186068A1 (en) * | 2012-06-14 | 2013-12-19 | Robert Bosch Gmbh | Windscreen wiper blade device |
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JP2002326564A (en) * | 2001-05-01 | 2002-11-12 | Pia Kk | Wiper |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2852566A1 (en) * | 2003-02-14 | 2004-09-24 | Kcw Corp | WINDSCREEN WIPER BLADE ASSEMBLY FOR A MOTOR VEHICLE |
US8141198B2 (en) | 2005-10-10 | 2012-03-27 | Robert Bosch Gmbh | Windscreen wiper arm |
JP2008126853A (en) * | 2006-11-21 | 2008-06-05 | Ichikoh Ind Ltd | Wiper blade |
JP2008230340A (en) * | 2007-03-19 | 2008-10-02 | Mitsuba Corp | Wiper blade |
WO2009153135A1 (en) * | 2008-06-19 | 2009-12-23 | Nv Bekaert Sa | Vertebra for wiper with at least two wire elements |
US8261404B2 (en) | 2008-06-19 | 2012-09-11 | Nv Bekaert Sa | Vertebra for wiper with at least two wire elements |
JP2012136149A (en) * | 2010-12-27 | 2012-07-19 | Mitsuba Corp | Wiper blade |
JP2012136150A (en) * | 2010-12-27 | 2012-07-19 | Mitsuba Corp | Wiper blade |
WO2012090635A1 (en) * | 2010-12-27 | 2012-07-05 | 株式会社ミツバ | Wiper blade |
CN103282246A (en) * | 2010-12-27 | 2013-09-04 | 株式会社美姿把 | Wiper blade |
RU2532012C1 (en) * | 2010-12-27 | 2014-10-27 | Мицуба Корпорейшн | Wiper brush |
CN103282246B (en) * | 2010-12-27 | 2015-09-30 | 株式会社美姿把 | Wiper blade |
US9751499B2 (en) | 2010-12-27 | 2017-09-05 | Mitsuba Corporation | Wiper blade |
WO2013186068A1 (en) * | 2012-06-14 | 2013-12-19 | Robert Bosch Gmbh | Windscreen wiper blade device |
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