Rotary window wiper device

Abstract

To provide a rotary window wiper device that prevents motions of a device such as a wiper blade and a motor or those devices from hindering a visual field and is fitted to such an article, from which such as water droplets and stain are automatically removed, as a window of such as a vehicle, a marine vessel, and a railway vehicle and such as an article including a lens of such as a camera for imaging a photograph or a moving image or a security camera.SOLUTION: A rotary window wiper device includes: a wiper body 4 including a wiper surface part 2 and a wiper annular wall part 3; a bearing 5; a bearing support part 6; and a motor 7, where the motor 7 is installed at a position offset from a rotation axis of the wiper body 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a rotary window wiper device. [Background technology]

[0002] BACKGROUND ART Automobile wiper devices have been known for some time. In an automobile wiper device, two wiper blades move back and forth to wipe away rainwater and other debris from the windshield. In this way, conventional wiper devices for ordinary automobiles have the drawback that the wiper blades move back and forth over the windshield, blocking the driver's view.

[0003] For example, rotary wiper devices are used as shown in Patent Documents 1 and 2. However, these conventional rotary wiper devices have the drawback that the blade rotation axis is located in the center of the glass window and the blade rotates around the entire glass window, which causes the wiper device to obstruct visibility. On the other hand, ships generally have glass windows that rotate and do not have blades, but even in these cases, there is the drawback that the support member that supports the motor that drives the glass window rotation axis obstructs visibility through the glass window. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 50-079121 [Patent Document 2] Japanese Utility Model Application Publication No. 54-165942 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object of the present invention is to provide a rotating window wiper device that can be attached to items from which it is desired to automatically remove water droplets, dirt, etc., such as windows of vehicles such as cars, ships, and trains, and items equipped with lenses such as cameras for taking photos and videos and security cameras, where the wiper blades, motors, and other devices or the operation of these devices do not obstruct visibility. [Means for solving the problem]

[0006] The first aspect of the present invention relates to a rotary window wiper device (1) comprising a wiper body (4) including a wiper surface (2) and a wiper annular wall (3) extending from the inner surface of the wiper surface (2) in an annular shape, a bearing (5) supporting the wiper annular wall (3), a bearing support (6) fixedly supporting the bearing (5), and a motor (7) for rotating the wiper body (4), the motor (7) being located at a position offset from the rotation axis of the wiper body (4).

[0007] The rotary window wiper device (1) of the second aspect of the present invention is characterized in that the motor (7) acts on the outer peripheral surface of the wiper annular wall portion (3) to rotate the wiper main body portion (4).

[0008] A rotary window wiper device (100) according to a third aspect of the present invention comprises a wiper body (4) including a wiper surface (2) and a wiper annular wall (3) extending from the inner surface of the wiper surface (2) in an annular shape, a drive unit (8) including a stator (9) and a rotor (10) for rotating the wiper body (4), a bearing (5) for supporting the rotor (10), and a bearing support unit (6) for fixedly supporting the bearing (5), wherein a cylindrical hollow portion (11) is provided inside the rotor (10), and the outer peripheral surface of the wiper annular wall (3) is attached so as to fit into the inner peripheral surface of the cylindrical hollow portion (11). [Effects of the Invention]

[0009] According to the first aspect of the present invention, the wiper body is rotated by the motor, and centrifugal force is used to blow away water droplets, snow, dirt, etc. that have adhered to the outer surface of the wiper surface, so that the view is not obstructed by objects such as wiper blades. In addition, the motor is located off the rotation axis of the wiper body, so the view is not obstructed by the motor, etc.

[0010] According to the second aspect of the present invention, the motor acts on the outer surface of the wiper annular wall to rotate the wiper main body, so that the wiper main body can be rotated smoothly even if the motor is not present on the rotation axis of the wiper main body.

[0011] According to the third aspect of the present invention, the wiper body is rotated by the drive unit, and centrifugal force is used to blow away water droplets, snow, dirt, etc. adhering to the outer surface of the wiper surface, so that the view is not obstructed by objects such as wiper blades. Furthermore, even if the rotation axis of the wiper body and the rotation axis of the drive unit are on the same line, the view is not obstructed by the drive unit, etc., because a cylindrical hollow portion is provided inside the drive unit, specifically the rotor of the drive unit. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a cross-sectional view showing an example of a rotary window wiper device according to a first embodiment of the present invention. [Figure 2] 1 is an exploded view showing an example of a rotary window wiper device according to a first embodiment of the present invention. [Figure 3] FIG. 4 is a cross-sectional view showing an example of a rotary window wiper device according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that Figures 1 to 3 show an example of a rotary window wiper device of the present invention, and the rotary window wiper device of the present invention is not limited to the embodiment shown in these figures.

[0014] 1 and 2 are a cross-sectional view and an exploded view showing an example of a rotary window wiper device 1 according to a first embodiment of the present invention.

[0015] As shown in Figures 1 and 2, the rotary window wiper device 1 comprises a wiper body 4 including a wiper surface 2 and a wiper annular wall 3 extending annularly from the inner surface of the wiper surface 2, a bearing 5 supporting the wiper annular wall 3, a bearing support 6 fixedly supporting the bearing 5, and a motor 7 for rotating the wiper body 4, the motor 7 being located at a position off the rotation axis of the wiper body 4.

[0016] The wiper surface 2 is not particularly limited, but is made of, for example, transparent glass or resin, and is provided in a plate shape, such as a disk shape. The outer surface of the wiper surface 2 (the left side in Figs. 1 and 2) is the part that is exposed to the outside and is exposed to rain, snow, dirt, etc., and the rotating window wiper device 1 is a device that repels rain, etc. that has adhered to the outer surface of the wiper surface 2.

[0017] The wiper annular wall portion 3 is provided in an annular shape and stands upright from the inner surface (the right side surface in Figs. 1 and 2) of the wiper surface portion 2. The wiper annular wall portion 3 is also not particularly limited, and may be made of, for example, resin, metal, glass, or the like.

[0018] 1 and 2, the wiper annular wall portion 3 is journaled by a bearing 5. Specifically, the inner peripheral surface of the wiper annular wall portion 3 is journaled by the outer peripheral surface of the bearing 5. Therefore, when a motor 7 (described later) is driven, the wiper annular wall portion 3, i.e., the wiper main body portion 4, rotates around the bearing 5.

[0019] There are no particular limitations on the bearing 5, and a commonly used bearing can be used. The bearing 5 is provided in a substantially annular shape, as shown in FIGS.

[0020] The bearing 5 is fixedly supported by the bearing support portion 6. There are no particular limitations on the material or shape of the bearing support portion 6. Since the bearing support portion 6 is a component that directly or indirectly supports the bearing 5 on an article to which the rotary window wiper device 1 is attached, the bearing support portion 6 may be made of a material and have a shape suitable for its intended use. Preferably, as shown in FIGS. 1 and 2 , the bearing support portion 6 is provided with an annular portion 12 that fits onto the inner circumferential surface of the bearing 5, which is generally annular, and the annular portion 12 supports the bearing 5. Here, the wiper body 4, the bearing 5, and the bearing support portion 6 are joined so that their respective annular portions fit together, but these annular portions are not provided with anything that obstructs the view. Therefore, there is nothing that obstructs the view when looking toward the wiper surface 2 from the bearing support portion 6 side.

[0021] The rotary window wiper device 1 of the first embodiment of the present invention is equipped with a motor 7. There are no particular limitations on the motor 7, and a commonly used motor can be used, but a motor of appropriate size, shape, and capacity is selected taking into consideration the item on which the rotary window wiper device 1 is attached, the wiping capacity of the wiper, centrifugal force, etc. The driving force of the motor 7 acts on the wiper body 4, causing it to rotate.

[0022] 1 and 2, in the rotary window wiper device 1 of the first embodiment of the present invention, the motor 7 is disposed at a position offset from the rotation axis A of the wiper body 4. By disposing the motor 7 at a position offset from the rotation axis A of the wiper body 4 in this manner, it is possible to prevent the motor 7 from obstructing the field of view.

[0023] The motor 7 can be provided so as to be supported by a motor support piece 14 that is bridged between two legs 13 that extend downward from the bearing support part 6, as shown in FIGS.

[0024] In the rotary window wiper device 1 of the first embodiment of the present invention configured as described above, the wiper body 4 is rotated by the drive of the motor 7, and centrifugal force is used to blow away water droplets, snow, dirt, etc. adhering to the outer surface of the wiper surface 2, so that the field of view is not obstructed by objects such as wiper blades. Furthermore, because the motor 7 is located at a position that is off the rotation axis A of the wiper body 4, the field of view is not obstructed by the motor 7, etc.

[0025] 1 and 2, in a preferred embodiment of the first aspect of the present invention, the motor 7 acts on the outer peripheral surface of the wiper annular wall 3 to rotate the wiper body 4. Specifically, for example, a shaft 15 is provided at the tip of the motor 7, and a drive roller or gear made of rubber or the like is attached to the shaft 15 as a power transmission member 16. If a drive roller is provided, the drive roller acts on the outer peripheral surface of the wiper annular wall 3 to rotate the wiper body 4. If a gear is provided, it is desirable that an uneven portion (not shown) that engages with the gear 16 is provided on the outer peripheral surface of the wiper annular wall 3, and the gear of the power transmission member 16 acts on the uneven portion to rotate the wiper body 4. This makes it possible to smoothly rotate the wiper body 4 even when the motor 7 is not located on the rotation axis A of the wiper body 4.

[0026] FIG. 3 is a cross-sectional view showing an example of a rotary window wiper device 100 according to the second embodiment of the present invention.

[0027] As shown in Figure 3, the rotary window wiper device 100 comprises a wiper main body 4 including a wiper surface 2 and a wiper annular wall 3 standing annularly from the inner surface of the wiper surface 2, a drive unit 8 including a stator 9 and a rotor 10 and rotating the wiper main body 4, a bearing 5 that supports the rotor 10, and a bearing support unit 6 that fixedly supports the bearing 5, and a cylindrical hollow portion 11 is provided inside the rotor 10, and the outer surface of the wiper annular wall 3 is attached so as to fit into the inner surface of the cylindrical hollow portion 11.

[0028] The first embodiment of the rotary window wiper device 1 of the present invention generally includes a wiper body 4, a bearing 5, a bearing support 6 and a motor 7, whereas the second embodiment of the rotary window wiper device 100 is generally configured as if the wiper body 4 were attached to the motor.

[0029] In the rotary window wiper device 100, the wiper body 4, that is, the wiper surface 2 and the wiper annular wall 3, are configured in the same manner as those of the rotary window wiper device 1 of the first embodiment.

[0030] The drive unit 8 is a device that generates the rotational motion of a normal motor, and includes a stator 9 and a rotor 10. For example, as shown in FIG. 3, the stator 9 includes an iron core 17 and a winding 18. As shown in FIG. 3, the rotor 10 has a cylindrical hollow portion 11 formed therein. In other words, the rotor 10 has a cylindrical hollow interior, and the rotation shaft of the drive unit 8 acts as if it were a hollow rotation shaft.

[0031] The rotor 10 is journaled by bearings 5. Specifically, for example, as shown in Fig. 3, the rotor 10 is journaled by two substantially annular bearings 5, and more specifically, the rotor 10 is journaled at its outer end (the left end in Fig. 3) and inner end (the right end in Fig. 3) by the two substantially annular bearings 5. The bearing 5 of the second embodiment is not particularly limited, and, like the bearing 5 of the first embodiment, a commonly used bearing can be used.

[0032] In the second form, the bearing 5 is fixedly supported by the bearing support part 6. There are no particular limitations on the material and shape of the bearing support part 6, but since the bearing support part 6 is a member that fixedly supports the bearing 5 to the housing 19 of the drive part 8, it may be made of a material and have a shape that can withstand its intended use. Preferably, one bearing support 6 is provided for each of the two substantially annular bearings 5, as shown in Figure 3. In this case, the bearing support 6 supporting the bearing 5 at the outer end and the bearing support 6 supporting the bearing 5 at the inner end can each have an annular portion 20 having substantially the same dimensions as the inner diameter of the bearing 5.

[0033] In the second embodiment, the wiper surface 2 is transparent, a cylindrical hollow portion 11 is provided inside the rotor 10, the bearing 5 is arranged in a substantially annular shape, and the bearing support portion 6 has an annular portion 20, so that there is nothing obstructing the view in the central portion of the rotary window wiper device 100, as shown in Figure 3.

[0034] In the second embodiment, the wiper annular wall 3 is attached so that its outer peripheral surface fits into the inner peripheral surface of the cylindrical hollow portion 11. That is, the wiper main body 4 and the rotor 10 are coupled so that the outer peripheral surface of the wiper annular wall 3 fits into the inner peripheral surface of the cylindrical hollow portion 11. Therefore, when the drive unit 8 is driven, that is, when the rotor 10 rotates, the wiper main body 4 also rotates.

[0035] In the second form, the rotational axis of the wiper main body 4 and the rotational axis of the drive unit 8 are on the same axis, but since the rotor 10 has a cylindrical hollow portion 11, the rotational axis is as if it were a hollow shaft, and since the other components are made transparent or arranged in an (approximately) annular shape, there is nothing that obstructs the view from the wiper surface 2 to the rotor 10, bearing 5 and bearing support portion 6.

[0036] In the rotary window wiper device 100 of the second embodiment of the present invention configured as described above, the wiper main body 4 is rotated by the drive unit 8, which uses centrifugal force to blow away water droplets, snow, dirt, etc. that have adhered to the outer surface of the wiper surface 2, so that the view is not obstructed by objects such as wiper blades. Furthermore, even if the rotation axis of the wiper main body 4 and the rotation axis of the drive unit 8 are on the same line, the view is not obstructed by the drive unit 8, etc., because a cylindrical hollow portion 11 is provided inside the drive unit 8, specifically the rotor 10 of the drive unit 8. [Explanation of symbols]

[0037] 1 Rotating window wiper device 2 Wiper surface 3 Wiper annular wall 4 Wiper body 5 bearings 6 Bearing support 7 Motor 8 Drive unit 9 Stator 10 rotors 11 Cylindrical hollow section 12 Annular section 13 Legs 14 Motor support piece 15 shaft 16 Power transmission components 17 Iron Core 18 windings 19 Housing 20 Annular section 100 Rotating window wiper device A Wiper body axis

Claims

1. a wiper body (4) including a wiper surface (2) and a wiper annular wall (3) extending annularly from the inner surface of the wiper surface (2); a bearing (5) that supports the wiper annular wall portion (3); a bearing support portion (6) that fixedly supports the bearing (5); A motor (7) is provided to rotate the wiper body (4), The rotary window wiper device (1) is characterized in that the motor (7) is provided at a position off the rotation axis of the wiper body (4).

2. 2. The rotary window wiper device according to claim 1, wherein the motor acts on the outer peripheral surface of the wiper annular wall to rotate the wiper body.

3. a wiper body (4) including a wiper surface (2) and a wiper annular wall (3) extending annularly from the inner surface of the wiper surface (2); a drive unit (8) including a stator (9) and a rotor (10) for rotating the wiper body (4); a bearing (5) that supports the rotor (10); a bearing support portion (6) for fixedly supporting the bearing (5); A cylindrical hollow portion (11) is provided inside the rotor (10), A rotary window wiper device (100) characterized in that the outer peripheral surface of the wiper annular wall portion (3) is attached so as to fit into the inner peripheral surface of the cylindrical hollow portion (11).

Images