JPS5836747A - Wiper device - Google Patents

Abstract

PURPOSE:To prevent a bothersome operation of a wiper and upgrade the safety of operation by making said wiper to perform a non-intermittent operation when wiper intermittent operation time is below a specified value, and an intermittent operation when the intermittent is above a specified value. CONSTITUTION:When a mode dial 12 for a wiper switch 10 is set to an INT mode, a wiper makes an intermittent motion and the intermittent time is continuously adjusted by the rotary operation of an INT dial 14. In an other word, when the INT dial 14 is moved round from the maximum position on SLOW side where the intermittent time of a wiper is a maximum value, t1 to FAST side, intermittent time ''t'' is continuously decreased. When a dialed position exceeds S2, the operation of a wiper is shifted from intermittent motion with time to non-intermittent motion where intermittent time is 0. On the contrary, when the INT dial 14 is moved round from the FAST side to the SLOW side beyond the position of S3, the wiper is shifted from non-intermittent motion to intermittent motion.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a wiper device for an automobile in which the wiper device 41 performs intermittent operation.

It is used to remove water droplets from window glass.

Incidentally, the amount of water droplets that adhere to the window glass of an automobile per unit time differs depending on the weather condition, for example, in the case of rain and in the case of fog. For this reason, many of the Wai and Mana are equipped with an intermittent operation function that causes the Wai and Arm to reciprocate at regular intermittent intervals.

As a conventional Y/F device equipped with such an intermittent operation function, for example, a device in which an adjustment dial is provided on the Y/F switch and the intermittent time is continuously controlled from 0 to an arbitrary value by this adjustment dial. It has been known. However, when making WY/# perform an intermittent operation, the viewer may wonder if the intermittent time is approximately 1.5 seconds or less, from when WY Δ completes its reciprocating operation to when it starts the next reciprocating operation. Movements no longer feel smooth and you start to feel strained. It feels like the brushes and wipers suddenly stop temporarily and suddenly start working again.

Therefore, in the conventional wiper device, the intermittent time is about 1. S
When the time is less than 10 seconds, the driver feels bothered by the wiper operation, which has the disadvantage that it distracts the driver's attention and hinders safe driving.

In addition, in the conventional Y/G device, when the intermittent time - is decreased and the intermittent time - is made to perform non-intermittent work with the intermittent time O, the intermittent time O is set by the adjustment dial.
The O position range is narrow, and for this reason, the intermittent operation condition set in this way is not easily affected by the play of the adjustment dial or the chatter cylinder force), resulting in the problem of unstable operation. there were.

The present invention is a wiper device in which the intermittent time can be continuously adjusted, and the intermittent time of the wiper operation can be adjusted to a predetermined value or less. In order to prevent the troublesomeness of the wiper operation that occurs and to improve the safety continuous operation performance, 4. By continuous intermittent time control〉 When switching the wiper operation from intermittent operation to non-intermittent operation, It is an object of the present invention to provide a YAI device capable of performing warpage switching reliably and stably.

In order to achieve the above object, the device of the present invention provides a wiper device that performs an intermittent operation in which the intermittent time can be continuously adjusted. It is characterized in that the above-mentioned intermittent work is performed, and below the set intermittent time, non-intermittent work with an intermittent time of O is performed.

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

FIG. 1 is an explanatory diagram of a wireless device according to the present invention.

The figure shows the WY Δ switch 10 part of the W/Sho@A for automobiles. Switching control can be performed in four states 11. In other words, setting the mode dial 12 to the OFF mode causes the K to stop operation, and setting the mode dial 12 to the T mode causes the A to perform intermittent operation, and sets the mode dial 12 to the LOW mode. By doing so, W Δ is caused to perform a low-speed non-intermittent operation, and by setting the mode dial 12 to the (1) mode (GH mode), W-i+1g- is caused to perform a high-speed non-intermittent operation. In addition, since the intermittent operation is performed for a small amount of rainfall, in this embodiment, the wiper speed is set to the same speed as the low-speed non-intermittent operation.

In addition, and O soi/4 switch 1G is mode dial 1.
IN when 2 is set to engineering MT mode? dial 14
By rotating K, the intermittent time t during the intermittent operation of W Δ can be continuously adjusted as described below.

Figure 2 shows IN? mode. Dial! FIG. 4 is an explanatory diagram showing the relationship between the dial rotation position and the intermittent time of Y/M when the dial 4 is rotated.

As is clear from Figure 2 (in? dial 14 is set to 8L)
When the wiper O is rotated to the maximum position on the OW side, the wiper O intermittent time reaches the maximum value t1. Next, as the dial 14 is gradually rotated from this position toward the FAs side, the intermittent time t decreases continuously until the rotation position reaches 8. If the period exceeds t, the wiper operation will be interrupted for a period of time t.

The intermittent operation switches to non-intermittent operation with an intermittent time of O.

Also, the wiper device is in a state where it performs non-intermittent operation like this! ■Tedial 14, reverse 1mu8! 8LO from the side
As the direction gradually rotates toward the W side, when the rotational position exceeds 8 m, the wiper operation of the device switches from a non-intermittent operation with an intermittent time of O to an intermittent operation with an intermittent time of tt. From now on xN
As the dial 14 is rotated toward the 5XJov side, the intermittent time is continuously increased.

In the example, the intermittent time 1G at the point of switching from intermittent motion to non-intermittent motion and the value of intermittent time t2 at the point of switching from non-intermittent motion to intermittent motion are approximately! , 5-2
．． It is set to about 0 seconds. This means that when Y/# operates intermittently, the intermittent time is approximately 1. When the time is less than s seconds, the viewer will feel that WΔ temporarily stops suddenly and resumes operation suddenly. The tortoise is designed so that it does not feel burdensome to the hands.

In the i-large embodiment, the set intermittent time t0 at the point where the intermittent operation changes to the non-intermittent operation is set much smaller than the set intermittent time at the point where the non-intermittent operation changes to the intermittent operation. Koresha, the aforementioned engineering NT dial 14
A predetermined rotation range, that is, a width, is provided between the rotation position S and 8 degrees, and this intermittent operation and non-intermittent operation due to play, rattling, and chattering of the IN〒 dial 14 can be separated. Prevents instability of movement at the boundary point, and further improves IN! This is intended to increase the degree of freedom in designing the dial 14.

FIG. 3 is an electrical circuit diagram showing a preferred embodiment of the device that performs the above-mentioned W/F operation.

In the figure, reference numeral 20 is a connection status explanation block showing the switch connection status in each mode set by the mode dial 12iC of the wiper switch 1G.

First, turn the mode dial 12 of the wiper switch 10 to HI.
When set to GH mode, the circuit configuration is such that the output of the battery 22 is supplied to the a-1) terminal of the motor 24 for driving the motor 24 via the GiI connection terminal of the block 2G. . The motor 24 used in this embodiment performs a high-speed wye/arm motion when the a-b end is energized, and a low-speed wye/arm motion when the &-e end is energized. .

First, turn the mode dial 12 of the wiper switch LO to Lo.
When the mode is switched to t mode, the output of the battery 22 is supplied to all the Low@ connection terminals of the block 20, and is further supplied to the motor=40a-a terminals via the a-b contacts of the electromagnetic relay 26. A circuit is configured. put it here,
As will be described later, the electromagnetic relay 26 is maintained in the non-energized state 11 in cases other than the factory mode, and in the non-energized state it is in the connected state where terminals a and b are turned on, and in the energized state it is in the connected state 11. - The connection state is controlled so that the Q terminal is turned on.

First, set the mode dial 12 of the wiper switch 10.
When set to the 〒 mode, the output of the battery 22 is connected to the a-a of the motor 24 via the a-a contacts of the electromagnetic relay 2-.
The circuit is configured so that it is supplied to @. 28 is a transistor for turning on and off the electromagnetic relay 260818B, and the transistor 28 turns on and off.
When the electromagnetic relay 26 is turned off, the electromagnetic relay 26 alternates between being energized and de-energized, thereby causing the motor 24 to operate intermittently.

Note that the intermittent operation of the motor 24 must be performed in such a manner that the intermittent operation of the motor 24 coincides with the reciprocating period of the motor 24. Therefore, the transistor 28 has an H/4 pulse whose duration is equal to the round trip time of the wiper switch 10, and the L- pulse whose duration is adjusted as shown in FIG. These /
4) The transistor 28 is turned on and off, and the electromagnetic relay 26 is controlled to be turned on and off intermittently.

Also, turn off the mode dial 12 of the wiper switch 10.
? When set to the mode, a circuit is configured in which the a and c terminals of the motor 24 are short-circuited via the a and b terminals of the electromagnetic relay 26 and further the OFF connection terminal of the block 20, and the motor 24 is forced to It is formed to be turned off. Note that the motor 24 can be turned off in HIGH mode,
LOW mode, IN? In either mode, this is often done while the Y/Y is reciprocating.

If no force is applied in a case like Jin, the Waino mother will stop in the middle of the reciprocating movement and remain in the same position, obstructing the view. For this reason, even if the wiper is switched to the Ovv mode during the reciprocating operation between wipe and reciprocate, an interlocking switch sO is provided for the purpose of operating the wiper to the position where the reciprocating operation ends. This switch 30 operates in conjunction with the motor 24, turns on the a-b terminals while the wiper is reciprocating, and when the wiper reaches the 11g1 operation end position i'l:
! The structure is such that the L-e terminal is turned on. And even if it is switched to 011 mode in the middle of the back and forth movement of the arm,
Battery 2! The output of the switch 300a-b terminal,
Connecting terminal at block x eooν, a of electromagnetic relay 26
It is supplied to the aQ terminals of the motor 24 via the -b terminal.

Then, when the reciprocating operation of W Δ is completed and at the 9 point, switch 3
0 is switched to the a-c terminal), and the motor 24 is stopped.

Therefore, a wide device [KTh
When the mode dial 12 is set to the HIGH mode, battery output is supplied to the a-b terminals of the wiper 24, the wiper performs non-intermittent operation at high speed, and the mode dial 12 is set to the LOW mode. When set to , battery output is supplied to the a-C terminals of the motor,
Rai/Nine companies perform non-intermittent work at low speed. Further, when the mode dial 12 is set to the mode, the intermittent time is adjusted as described above as shown in FIG. 2, and the intermittent operation is performed properly. Furthermore, when the mode dial 12 is set to the OFF mode, the function of the switch 30 ensures that W/# is set to f7 at the reciprocating end position.

As described above, according to the present invention, in a wiper device that performs wiper intermittent operation in which the intermittent time can be continuously adjusted, the wiper By performing intermittent work and performing non-intermittent work with an intermittent time of O below this set intermittent time, the result will be reduced. It prevents cumbersome operation and improves safe driving. Furthermore, continuous intermittent time control allows you to change the wiper operation from intermittent to non-intermittent operation, or change wiper operation to non-intermittent operation. When switching from to intermittent operation, the switching can be performed reliably and stably without being affected by, for example, play or chattering of the switching device.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the wiper switch used in the wiper device of the present invention, and Fig. 2 shows the rotational position of the QINT dial for adjusting the intermittent time that is turned off during the intermittent operation of the wiper device of the present invention. An explanatory diagram showing the relationship with the intermittent time. FIG. 3 is an electric circuit diagram according to a preferred embodiment of the weight/quantity device of the present invention. Mu...wai/mother device.

Claims (1)

[Claims] Axis) A wiper device that performs intermittent work with continuously adjustable intermittent time/intermittent operation KsP%/%, which is arbitrarily set and exceeds the set intermittent time with nine intermittent times. The wiper device is characterized in that it performs the above-mentioned intermittent operation and performs a non-intermittent operation with an intermittent time of O below the intermittent time set to ζ0. - 6 m In the device described in the claims (!), the acid constant threshold time O value at which the wiper operation switches from intermittent operation to non-intermittent operation is set to the value at which the wiper operation switches from non-intermittent operation to intermittent operation. A wiper device characterized by a small acid chamber. @ Patent Claim 09 @ A wide-di device according to any one of (1) and (2), characterized in that the preset intermittent time is set to 1.6 to 1.6 seconds.