JPS5942288Y2 - Pantograph wiper arm support device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a support device for a pantograph wiper arm that is attached to an automobile body and wipes a shield glass or the like over a wide angle.

As shown in FIG. 1, a conventional pantograph wiper arm support device uses a pivot shaft on the main arm 2 side to position the arm base 1 on which the main arm 2 and sub arm 3 are assembled to obtain the necessary wide-angle wiping pattern. The stopping position was determined by engaging a predetermined hole provided in the vehicle body with screws 4 and 5.

For this reason, the arm base 1VC had to be drilled in advance with a hole for the screw 5 at a position suitable for obtaining the necessary wide-angle wiping pattern, so it was necessary to drill a hole for the screw 5 on the arm base 1, and the When attaching this to the vehicle body, it was necessary to tighten screw 5, and the assembly was disadvantageous in terms of man-hours.

Originally, it would have been optimal to obtain this necessary wide-angle wiping pattern using the positional relationship of the fulcrums of the main arm 2 and sub-arm 3 determined by the shape of the arm base 1.

This invention aims to solve the above-mentioned problems and obtains a wide-angle wiping pattern by using the positional relationship of the fulcrum between the main arm and the sub-arm determined by the shape of the arm base.Therefore, the sub-arm is fixed from the arm base. The present invention provides a support device for a pantograph wiper arm that positions a wiper arm by protruding a wiper arm.

Hereinafter, embodiments of the present invention will be described based on the drawings.

Referring to FIG. 2, the pantograph type wiper arm support device 11 is composed of an arm base 1, a main arm 2, a sub arm 3, a pivot shaft 4, and a pin for fixing the sub arm 6.

In Fig. 4, the sub-arm fixing pin 6 is attached to the washer 1.
The serration forming portion 12 of the sub-arm fixing pin is press-fitted into the arm base 1, and the sub-arm fixing pin 6 is connected from the arm base 1 to the pivot shaft 40. The vehicle body attachment protrudes in the same direction as the direction, and the protrusion 6' is connected to the pivot shaft 4.
At the same time, the pantograph wiper arm support device 11 is positioned to obtain a wide-angle wiping pattern.

To attach the support device 11 of the pantograph type wiper arm in the above configuration to the vehicle body, the pivot shaft 4 and the protrusion 6' of the sub-arm fixing pin 6 are engaged with the holes γ, 8 drilled at predetermined positions on the vehicle body side. For tightening, tighten the nut 10 and wipe the shield glass surface 9 as shown in FIG.

As described above, the pantograph type wiper arm support device according to the present invention has a sub-arm fixing pin protruding toward the vehicle body, and the protruding portion is engaged with a predetermined hole previously drilled in the vehicle body together with the pivot shaft to form a wide-angle pattern. This allows for wide-angle pattern positioning by simply tightening the pivot nut, without requiring screws like in the past, reducing the number of parts and simplifying vehicle body installation work.
This makes it possible to simplify the structure around the pivot.

[Brief explanation of drawings]

Fig. 1 shows a conventional pantograph wiper arm support device, Fig. 2 shows an embodiment of the pantograph wiper arm support device according to the present invention and an explanatory diagram of the device, and Fig. 3 shows a pantograph wiper arm support device according to the present invention. FIG. 4 is a diagram showing how the support device is mounted on the vehicle body, and FIG. 4 is a cross-sectional view of the attachment of the sub-arm attachment portion. 1: Arm base, 2: Main arm, 3: Sub arm, 4: Pivot & 5: Screw, 6: Sub arm fixing pin, 11: Pantograph type wiper arm support device, 12
: Serration forming part, 13: Washer, 6': Protruding part, 7, 8: Predetermined holes, 9: Shield glass, 10: Pivot tightening nut.

Claims (1)

[Scope of utility model registration request] The sub-arm is rotatably supported by a sub-arm fixing pin, and the sub-arm fixing pin is press-fitted into a sub-arm fixing pin hole drilled in the arm base, and the protruding part of the sub-arm fixing pin is drilled into the vehicle body side. A supporting device for a pantograph type wiper arm, characterized in that the main arm is engaged with a predetermined hole and is fastened and fixed to a pivot shaft rotatably supported by the arm base.