JPH0347008Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a wiper device for wiping the windshield of a car, and is particularly an improvement to the wiper device applied to cars such as Jeeps whose windshields can be folded down onto the bonnet. It is related to.

2. Description of the Related Art Wiper arms for wiping the retractable windshield of automobiles include those whose mounting portions are located on the same surface as the windshield, and those whose mounting portions are located on a different surface.

In the former case, in order to position the wiper arm attachment portion on the same plane as the windshield, the wiper link mechanism must be installed within the windshield frame, which poses a problem in terms of installation space and the like. In the latter case, if the windshield is folded down while the wiper arm is in its normal stop position, the wiper arm may protrude from the body surface, or the windshield's own weight may apply an excessive load to the windshield, resulting in damage.

This idea was made to solve the above problem, and uses a motor that can stop the wiper arm at an angular position other than the normal automatic stop position. The windshield can be folded down without removing the wiper arm by using a wiper having a lockback mechanism that can be tilted sideways from a contact position for wiping to near the bonnet.

This invention will be specifically explained below based on drawings showing an example of its implementation.

In FIGS. 1 and 2, 1 is a wiper arm mounting shaft, 2 is a wiper arm, W is a blade, and 3 is a windshield.

The wiper arm 2 can be tilted sideways from the glass surface to a position near the bonnet by means of a lockback mechanism. That is, the arm 2 is rotatably connected by a support shaft 5 to an arm head 4 fixed to the mounting shaft 1, and one end of the hook arm 7 is engaged with a pin 6 protruding from the arm head 4. A coil spring 8 is stretched between the other end and the tip of the arm 2, and the arm 2 can rotate from a contact position for wiping the glass surface to a sideways position as shown by the chain line, as shown in Fig. 2. It's becoming like that.

The mechanism for reciprocating the arm mounting shaft 1 is similar to the conventional one, and as shown in FIG.
0, and by rotation of the crank 10,
The wiper arm 2 is configured to swing back and forth within a predetermined wiping angle range.

On the other hand, in the case of a control drive unit including a wiper motor (not shown), even if the motor switch is opened, power continues to be supplied to the motor, as in the case of conventional wiper motors, so that the blades do not obstruct visibility. The wiper blade is equipped with an automatic position stop rotary switch that completely cuts off the power supply to the motor when the wiper blade reaches the lower edge of the window frame. In addition to the first switch part set to 1, the blade is configured to stop at the upright position, and the second switch part is set to stop the blade in the upright position, and both switches can be freely selected and used by switching the other switch. has been done.

In the wiper device configured as described above, in order to fold down the windshield 3, the switch of the motor control drive section is operated, and the arm 2 is moved from the automatic stop position A to the standing position B as shown in FIG. Switch to. That is, as shown in Figure 3,
The crank 10 is moved from the solid line position to the chain line position.

After moving the wiper arm 2 from the automatic stop position to the upright position as described above, as shown in FIG.
Move it to the position shown by the chain line in Figure 4.

It is also possible to leave the wiper blade in an upright position and then fold down the windshield together with the wiper blade.

As described above, according to this invention, in a wiper device in which the mounting axis of the wiper arm is positioned on a surface different from the windshield surface, the wiper arm has a locking mechanism that allows the wiper arm to be tilted sideways from a position in contact with the glass surface to near the bonnet. On the other hand, the control drive unit including the wiper motor is configured so that the wiper arm can be moved from the automatic stop position to the standing position by operating a switch, so the wiper arm can be moved without removing the wiper arm. You can fold down the windshield.

[Brief explanation of the drawing]

Fig. 1 is a front view of a wiper arm installed state showing an embodiment of this invention, Fig. 2 is a sectional view of the main part of the lockback mechanism of the wiper arm, Fig. 3 is a schematic configuration diagram of the mechanism for swinging the arm, FIG. 4 is a perspective explanatory view when the windshield is folded forward together with the wiper blade, and FIG. 5 is a side explanatory view. 1... Wiper arm mounting shaft, 2... Wiper arm, 3... Windshield, 4... Arm head, 5... Support shaft, 6... Pin, 7... Hook arm, 8... Spring, 9... Link, 10...
crank.

Claims (1)

[Scope of utility model registration request] In a wiper device in which the mounting axis of the wiper arm is positioned on a different surface from the windshield surface, the wiper arm is equipped with a lock-back mechanism that allows it to be tilted sideways from a contact position for wiping the glass surface to near the bonnet. The control drive unit including the
A wiper device characterized in that the wiper arm is configured to be operable to move the wiper arm from an automatic stop position to a standing posture angle.