JPS5941886Y2 - wiper device - Google Patents

Description

[Detailed description of the invention] This invention relates to a wiper device for cleaning and wiping the surfaces of various facepieces such as automobile windshields and blackboards. Similar to the automobile wiper described above, this wiper has a fan-shaped reciprocating motion and is rotated on a facepiece by a second motor, thereby dramatically improving wiping performance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the drawings showing a windshield wiper device for an automobile will be described below.

Reference numeral 1 denotes an integrated wiper that can be moved over a windshield 2, and is made of an elastic material such as sponge rubber or foamed urethane, into which a support shaft 3 is press-inserted either through the center core or directly.

Reference numeral 4 denotes a bearing that rotatably holds the support shaft 3, and in a direction perpendicular to the support shaft 3, there is a connecting portion 6 of the drive shaft 5 of the first motor M1 and a receiving rod 7 for holding the bearing 4. It has a fitting part 8.

As shown in the figure, the first motor M1 is fixed to a bracket 9 attached to the body, and its drive shaft 5 is connected to the connecting portion 6 of the bearing 4.
The fitting part 8
The receiving rod 7 that is fitted into the mounting base 1 and rotatably supports the bearing 4 is
1 and is integrally molded and fixed to a bracket 12 attached to the body.

M2 is a second motor that connects the shaft end of the support shaft 3 inserted into the bearing 4 and extended to the rotation shaft to provide rotational force to the wiper unit 1, and connects the hook 13 attached to the motor case inside the body. It is suspended and movably supported by two running rails 14 mounted on the rails.

Therefore, by driving the first motor M1 (forward and reverse rotation), the wiper unit 1 and the second motor M2 perform a fan-shaped reciprocating motion as seen in conventional wiper devices.
The rotary movement is performed by the drive of the second motor M2, and the fan-shaped movement is performed while rotating on the windshield 2, and cleaning and wiping are performed by the double rubbing movement.

The shape of the wiper unit 1 can take various forms, such as a substantially cylindrical cross section as shown in the figure, a polygonal cylinder, or a twisted rod shape.A polygonal cylinder or a twisted rod shape has a better friction condition and is easier to wipe off. Power will also improve accordingly.

Further, the structure for holding the bearing 4 is not limited to the fitting of the receiving rod 7 of the embodiment, but any support body capable of holding the bearing 4 rotatably when driving the required heptad M1 may be used.

As mentioned above, the wiper device of this invention cleans and wipes with an integrated wiper that performs a fan-shaped reciprocating motion on the facepiece and also rotates, so a double frictional force acts and wipes the area. This resulted in a wiper device with extremely high performance.

Furthermore, since the wiper device of this invention is a direct drive system using two motors, the configuration is extremely simple, there are fewer points of failure, and the wiper device has a long lifespan due to no dripping and no maintenance. Inspection is also extremely easy.

Furthermore, it is lightweight overall, and combined with the simplicity of the structure,
It can be said to be ideal as a wiper device for blackboards, car windshields, etc.

Furthermore, since it has a simple configuration, it is perfect in terms of productivity and economy, and its practical value is extremely large.

Furthermore, since the second motor is provided at the end of the shaft that extends through the bearing and is movably supported on the running rail, the moment concentration on the bearing part at the start of the reciprocating motion of the fan-shaped folding and at the time of its reversal can be avoided. Concerns about damage over time can be avoided, and in cases where the wiper device is intended for automobile windshields, the dead weight of the second motor will be applied to the reverse operation of the wiper, and the running rail Since the steady position of the wiper is stabilized by the two points of the bearing and the wiper, there is no perpendicular wobbling of the wiper with respect to the target surface, which does not reduce the efficiency of the scrubbing movement, allowing for smooth, efficient, and natural constant operation. It also has the advantage of being predictable.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the wiper device according to the invention, FIG. 2 is an enlarged view of the same part, and FIG. 3 is a rear view of the second motor portion. 1... Wiper integrated, 3... Support shaft, M,
....First motor, M2...Second motor.

Claims (1)

[Scope of utility model registration request] An integrated wiper made of an elastic material such as sponge rubber or foamed urethane (/J A support shaft is inserted and extended into a bearing, and this bearing has a support that holds the bearing rotatably in a direction perpendicular to the support shaft, and an integrated wiper. A rotary shaft of a first motor M1 that imparts fan-shaped reciprocating motion to the motors is attached to each of the motors, and the shaft ends of the support shafts inserted through and extended into the bearings are movable on a traveling rail mounted in the body or the like. A wiper device in which the rotary shafts of 1M2 and 1M2 are connected to each other.