JPS6034517Y2 - Wiper device for automobiles with front lower windshield - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiper device for an automobile equipped with a front lower windshield.

The front lower windshield is provided below the front windshield as will be described later, and the wiper device may utilize the power of the front windshield wiper to maintain synchronization.

A device in which the movement of one wiper device is used to operate another wiper device is known, for example, from Japanese Utility Model Application No. 53-87546.

That is, in this invention, one end of the link rod 7 is rotatably attached to the wiper arm 3 for the front windshield, and the other end of the rod 7 slides through the groove member 4 provided along the lower edge of the front window 1. A snow removal blade 6 is attached to the sliding member 5 so as to be rotatable, and the link rod 7 is moved by the movement of the wiper arm 3.
moving the snow removal blade 6 horizontally within the groove member 4 via the
The purpose of this wiper is to wipe off the snow that has accumulated on the lower edge of the front windshield 1, but since the wiper for the front lower windshield has a relatively large wiping area □, it is necessary to operate it in the same way as the wiper for the front windshield. On the other hand, the structure proposed by Jitsukaiaki is unsuitable.

Further, since the front lower window glass is provided below the front windshield, a special coupling mechanism is required when the former wiper is operated in synchronization with the latter wiper.

What is shown in Japanese Utility Model Application Publication No. 53-26035 is (1) a so-called batch-back wiper for the rear window glass of a passenger car, in order to align its wiping area with the rear window glass.
Sliding animation 1 with a shaft 17 installed at the center of the vehicle on the ceiling
A wiper arm 10□ is fitted to the wiper arm 6, and the tip of the lever arm 3, which has its center of rotation at the center of the vehicle and rotates opposite to the sliding arm 16, is rotatably connected to the middle of this arm. A link 9 is provided coaxially with the lever 3, and the link is rotated by a connecting rod 8 which is moved left and right by motor power.Although it may be okay to simply operate the wiper arm, the wiper for the front lower windshield is The front windshield wiper moves in the opposite direction to the front windshield wiper placed nearby, i.e. the front windshield wiper normally stops at the lower edge of the front windshield, while the front lower windshield wiper moves across the front lower window. Since it is desired to stop at the upper edge of the glass to ensure visibility, it cannot be applied for this purpose.

The present invention has been devised in view of the above, and embodiments thereof will be described below with reference to the drawings.

In Fig. 1, 1 is the cab of a large truck, 2 is the front windshield, and 3 is the front lower windshield. It is provided.

4 is a door, and in this example, the entire surface of the door S is fitted with glass.

The front lower/f throat glass 3 is provided below the front windshield 2, extending from its left end (right end in FIG. 9) to near the center of S' in this example.

The boundary between both glasses 2 and 3 is formed by a weather strip 30.

The weather strip 30 is attached to a frame (not shown) (located on the indoor side).

To obtain visibility from the front lower windshield 3,
The Fuecia 5 installed along the front end of the inside of the cab 1,
The part on the front lower windshield 3 side is cut,
A fuesia-less area (area without fuesia) 6 is formed.

As a result, the portion that obstructs the driver's view is largely removed, and a sufficient view through the glass 3 is ensured.

As shown in FIGS. 1 and 2, the front windshield 2 is provided with three wipers 21, 22 and 23 in this example, and the front lower windshield 3 is provided with one wiper 31. , and is configured to be driven by a drive device A.

・In the drive device A shown in FIGS. 2 to 4, M is a motor, M-1 is a motor link driven by the motor M, and 7, 8.9, and 10 are pivot arms, each of which has a rotating shaft 70. ．． 80. It is supported within the cab 1 so that it can rotate around 90 and 100 degrees.

Each wiper is connected to this rotating shaft.

Motor link M-1 and pivot arm 7, between pivot arms 7 and 8, and between pivot arms 8 and 9 are connected by connecting rods 71, 81 and 91, respectively.

A known pole joint device is used at the connection portion between the motor link M-1, pivot arms 7 and 8, and each connecting rod.

A crank lever 92 extending downward is fixed to the end of the connecting rod 91, and its lower edge and the end of the pivot arm 9 are connected via a pole bearing 93 (a bearing 93 is attached to the arm 92, A pin 94 is fixed to the arm 9 side, and the pin 94 is connected by fitting into the bearing 93).

A yoke 11 is formed at the upper end of a pivot arm 10 for driving the wiper 31 of the lower windshield 3, and a roller bearing 96 is held on a pin 95 set at the center of the pivot arm 9. 96 is fitted into the yoke 11 so that each pivot arm 9
and 10 are concatenated.

Note that the rotational axes 90 and 100 of each arm 9 and 10 are inclined to each other in order to match the inclined surface of the glass (
(see FIG. 4), an alignment bearing is used as the bearing 96.

The blades 21a, 22a, and 23a of the wiper 21, 22, and 23 for the front windshield 2 stop at the lower end of the windshield 2, but the blade 31a of the wiper 31 for the front lower windshield 3 stops at the lower end of the windshield 2. It is located at the top of 3.

Thereby, sufficient visibility (especially downward) from the glass 3 is ensured.

When the motor M is driven from the stationary state shown in Figure 2, the motor link M'-1 rotates in the direction of the arrow, and each connecting rod and pivot arm are also moved in the direction of the arrow, which is transmitted to each wiper blade to reciprocate. It can be moved to wipe away water droplets on the glass 2 and 3 surfaces.

The wiper blade 31a is located at the upper end of the front lower windshield 3, and the other wiper blades 21a*22
Since wiper blades a and 23a are located at the lower end of the front windshield 2, the movement of the wiper blade 31a must be in the opposite direction to the other ones.

Therefore, in the present invention, the rotating shaft 90 of the wiper 23 is provided at a lower position than the rotating shafts 70 and 80 of the wipers 21 and 22, which are provided at the same height, and the rotating shaft 100 of the wiper 31 is placed below it. Place each wiper 21.2
The pivot arms 7, 8 and 9 of 2 and 23 are connected to each other by a connecting rod, and the pivot arms 9 and 10 are connected by a bearing 96 provided at the center of the pivot arm S' of the pivot arm 9 and a bearing 96 provided at the upper end of the pivot arm 10. Yoke 11
By connecting the motor link M-1 of the motor M and the pivot arm 7 with a connecting rod, it is possible to drive the motor M with a single motor M.

In addition, in the above example, motor link M-1 of motor M
is connected to the pivot arm 7, but it may be connected to any of the other arms 8, 9, 10 or a link system connecting them.

In this example, the wiper for the windshield is 3.
Although the case of two is also conceivable, the essence of the present invention remains unchanged.

Since the present invention is configured as described above, a plurality of wipers are located at the lower end of the front lower windshield 2 and at the upper end of the front lower windshield 3.
Wipers that move in the opposite direction to other wipers can be driven simultaneously using a simple link mechanism and one motor, ensuring good visibility regardless of the weather.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of a cab equipped with an embodiment of the present invention, FIG. 2 is a schematic front view showing an embodiment of the present invention, and FIG.
The figure is an enlarged view of part B in FIG. 2, and FIG. 4 is a view taken in the direction of arrow IV in FIG. 3. Code, 1...Cab, 2...Front window glass, 3...Front lower window glass, 5...Fuecia, 6... Fuesiares area, A... wiper drive device?
, 8.9. 10... Zepot arm, 70,
80, 90, 100... Rotating shaft, 21, 22,
23,31...Wiper.

Claims (1)

[Scope of Claim for Utility Model Registration] A vehicle having a front lower windshield located close to the lower part of the front windshield is constructed so that the front windshield wiper close to said front lower windshield is rotated by a crank lever. The crank lever and the front lower windshield wiper shaft are connected by a pivot arm having a yoke that plays with the crank lever, and the pivot arm rotates in the opposite direction to the movement of the crank lever. A wiper device for automobiles with a front lower windshield that rotates. .