JPS6291341A - Housing type wiper - Google Patents

Abstract

PURPOSE:To reduce air resistance to a vehicle and improve the style of said vehicle by lifting up and down a wiper assembly between a housing position for housing said wiper assembly in a housing chamber and an elevated position for wiping a window glass, and providing a shutter for closing an opening on top of said housing chamber when said wiper is housed in it. CONSTITUTION:When a wiper is not in use, a wiper assembly 10 is housed in a housing chamber 16, an opening 29 is closed by a shutter 28, and a hood 14 is nearly flush with a window glass 12, reducing air resistance to a vehicle. Since the wiper assembly 10 is not projected out of the outer surface of the vehicle, it is not subjected to any unnatural external force. When the wiper is to be used, the shutter 28 is slid and opened, a pop-up motor 44 is normally rotated to lift up the wiper assembly 10, a part of the wiper assembly 10 is projected out of the opening 19, and the wiper is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a retractable wiper in which a wiper assembly is stored in a storage chamber provided in a vehicle body near a windshield.

[Conventional technology]

In this type of retractable wiper, there is a step between the hood and the windshield due to the arrangement of the wiper assembly.

For this reason, the air resistance of the vehicle increases and the style of the vehicle deteriorates.

[Problem that the invention seeks to solve]

An object of the present invention is to provide a retractable wiper that can reduce air resistance of a vehicle and improve the style of the vehicle.

[Means for solving problems]

The retractable wiper according to the present invention includes a storage chamber provided in the vehicle body near the windshield, a wiper assembly stored in the storage chamber, a storage position in which the wiper assembly is stored in the storage chamber, and a storage position in which the wiper assembly is stored in the storage chamber. The wiper has a lifting means that moves up and down to a raised position where the wiper assembly is operated, and a shutter that closes the opening above the storage chamber and makes the windshield and the hood substantially flush with each other when the wiper assembly is stored.

[Effect]

When the wiper is not in use, the wiper assembly is stored in the storage chamber, and the opening above the storage chamber is closed by a shutter, so that the windshield and the hood are substantially flush with each other, reducing the air resistance of the vehicle. Further, since the wiper assembly does not protrude from the outer surface of the vehicle, no excessive external force is applied to the wiper assembly.

When using the wiper, the shutter is opened, the wiper assembly is raised by the lifting means, a portion of the wiper assembly is projected from the opening, and the wiper is operated. As a result, raindrops and the like adhering to the windshield are wiped away.

〔Example〕

The present invention will be explained in detail according to the drawings.

As shown in FIG. 3, the wiper assembly IO includes a storage chamber 16 provided between the windshield 12 and the hood 14.
is stored in.

The storage chamber 16 is formed by a cowl inner 18 that extends horizontally over a front pillar (not shown).

An end portion of the cowl inner 18 on the vehicle rear side is adhered to the windshield 12 with an adhesive 20. Cowl inner 1
A beam reinforcement 22 is provided on the front side of the vehicle 8, and its end portion overlaps with the end portion of the cowl inner 18, and a weather strip holding portion 24 is sandwiched therebetween. on the other hand,
A weather strip seal portion 26 is attached to the back surface of the hood 14 facing the weather strip holding portion 24 to ensure sealing between the hood 14 and the cowl inner 18.

As shown in FIG. 2(A), an opening 29 between the windshield 12 and the hood 14 is formed by cutting out the hood 14 into a substantially rectangular shape. This frontage 29 is the louver 28
can be slid closed. Figure 3 (
In the state shown in A), the surfaces of the windshield 12 near the louver 28, the surface of the hood 14, and the surface of the louver 28 are flush with each other, so that the air resistance of the vehicle is reduced.

As shown in FIG. 1, a portion of the louver 28 has an opening 29.
a pair of guide rails 30.3 provided along the edges of the
It is designed to slide guided by 2. As shown in FIG. 4, both ends of the slider 11 are engaged so as to be movable along the guide rail 30. A rack 13 is formed at the side end of the slider 11, and meshes with a pinion 15. The pinion 15 is fixed to the body via a louver motor 34 shown in FIG. On the other hand, brackets 17 and 19 are protruded from the lower surface of the louver 28. A long hole 21 is bored in the bracket 17, and a bottle 23 protruding from the slider 11 is fitted into the hole 21. Further, the bracket 19 is pivotally supported by one end portion of a link par 25 that is pivotally supported by the slider 11. An end of a torsion spring 27 is locked to the other end of the link par 25 and the slider 11, and urges the link par 25 in the direction of arrow P. A safety plate 29 is fixedly installed on the body side to prevent the linker 25 from rotating in the direction opposite to the direction of arrow P and standing up.

A stopper 31 is fixed to the upper end of the guide rail 30 to restrict movement of the bracket 17 toward the windshield 12 side.

When the pinion 15 is rotated counterclockwise from the open state of the louver 28 shown in FIG. 4(A), the louver 28 is moved toward the windshield until the bracket 17 comes into contact with the stopper 31, as shown in FIG. 4(B). Slide in direction 12.

When the pinion 15 is further rotated in the above direction, the pin 23
is guided into the elongated hole 21, and the tip of the slider 11 comes into contact with it. At this time, the bracket 19 moves toward the lower end of the guide rail 30 relative to the slider 11. For this reason,
The linker 25 rotates clockwise against the urging force of the torsion spring 27 and stands up, and the upper end of the louver 28 comes into contact with the upper surface of the lower end of the windshield 12, as shown in FIG. 4(C).

The guide rail 32 side of the louver 28 is driven by the same rack and pinion configuration as described above by transmitting the rotational force of the louver motor 34 via a cable housed in a pipe 36.

A driving section of the wiper assembly 10 is housed in a wiper box 38. This wiper box 38 is pivotally supported by a pair of hinges 40 fixed to the reinforcement 22, and is rotatable about a fulcrum 42. The drive source for this rotation is the pop-up motor 44.

A worm (not shown) is attached to the rotating shaft of the pop-up motor 44 and meshes with a worm wheel (not shown) housed in the case 46 . This pop-up motor 44 is fixed to a case 46.

The case 46 is fixed to an reinforcement (not shown), that is, a side wall of the storage chamber 16, through a protrusion 48, which is perpendicular to the cowl inner 18. An arm 50 is attached to the rotation shaft 49 of the worm wheel. arm 50
The distal end of the wiper box 38 is connected to the side surface of the wiper box 38 by a rod 52, and the wiper box 38 is rotated about a fulcrum 42 by rotation of the arm 50.

Therefore, from the state shown in FIG. 3 (A>), the looper motor 3
4 is rotated in the normal direction, the louver 28 is slid to open the opening 29, and the pop-up motor 44 is rotated in the normal direction, so that the wiper assembly 10 is in the pop-up state as shown in FIG. 3(B).

As shown in FIG. 1, the wiper assembly 10 is provided with a wiper blade 54 for wiping away raindrops etc. adhering to the windshield 12. A central portion of the wiper blade 54 is supported by a first arm 58 via a twenty-seventh arm 56. As shown in FIGS. 7 and 8, the second arm 5
6 is pivotally supported by the first arm 58 by an arm bending/extending shaft 60 fixed thereto. A pinion 62 is fixed coaxially to the arm bending/extending shaft 60 and is housed in the first arm 58 . Further, the first arm 58 has a rod 64.
is built in, and a rack 66 that meshes with a pinion 62 is provided at one end thereof. The other end of the rod 64 is connected to a crank arm 70 by a pin 68. Therefore, when the crank arm 70 rotates, the rod 64 moves linearly, the pinion 62 rotates, and the second arm 56 rotates about the arm bending/extending shaft 60. That is, the second arm 56 is replaced by the first arm 5.
It can be folded up to 8.

Therefore, the space of the storage chamber 16 can be narrowed and the entire device can be downsized.

As shown in FIG. 8, the arm head 57 of the second arm 56 is pivotally supported by the first arm 58 by an arm bending/extending shaft 60. As shown in FIG. The second arm head 57 pivotally supports one end of the retainer 61 by means of a pin 59. One end of a second arm piece 63 is fixed to the other end of the retainer 61 .

A wiper blade 54 shown in FIG. 1 is fixed to the other end of the second arm piece 63. Second arm piece 63
A hook 65 is formed at one end and locks one end of a tension coil spring 67. Further, on the right side of FIG. 8(A) near the arm bending/extending shaft 60, a hook 69 is protruded at a position a distance away from the arm bending/extending shaft 60, and is used to lock the other end of the tension coil spring 67. ing.

As shown in FIG. 8(A), when the second arm 56 is extended relative to the first arm 58, the biasing force of the tension coil spring 67 applies a counterclockwise moment about the bottle 59 to the second arm. Joins piece 63. Thereby, the wiper blade 54 presses the windshield 12.

As shown by the two-dot chain line in FIG. 8(A), when the second arm 56 is folded, the length of the tension coil spring 67 is 2D shorter than when the second arm 56 is extended. The tensile force of the coil spring 67 becomes smaller. Therefore, the wiper blade 54
The drag force received from the wiper blade 54 is reduced, and when the wiper blade 54 is not in use, no excessive force is applied to the wiper blade 54, and deformation of the rubber of the wiper blade 54, that is, deterioration of the wiping function of the wiper blade 54, can be prevented.

Note that a compression coil spring may be used instead of the tension coil spring 67, and in this case, the hook 69
Instead, a spring receiver is provided on the left side and above the arm index shaft 60 shown in FIG. 8(A).

The crank arm 70 is fixed to one end of an arm bending/extending drive shaft 72 . The arm bending/extending drive shaft 72 is supported by an inner bearing 74 which is a wiper arm rotating shaft. The tip of the inner bearing 74 is fixed to the first arm 58 with a nut 76. A worm wheel 78 is fixed to the lower end of the arm bending/extending drive shaft 72, and a worm 80 meshes with the worm wheel 78. The worm wheel 78 and the worm 80 are housed in a case 82 from which the inner bearing 74 projects.

This worm 80 is rotatably driven by an arm bending/extending motor 84 fixed to the case 82. The inner bearing 74 is pivotally supported by an outer bearing 86, which includes the first arm 58, the inner bearing 74, the case 82, and the arm bending/extending motor 84.
is designed to rotate integrally. This outer bearing 86
is fixed to the upper plate 88 of the wiper box 38, as shown in FIG.

The arm bending/extending motor 84 is disposed on the opposite side of the first arm 58 with respect to the arm bending/extending drive shaft 72, and is centered around the inner bearing 74 based on the gravity acting on the wiper blade 54, the second arm 56, and the first arm 58. The moment caused by this is canceled out by the moment centered on the inner bearing 74 based on the gravity acting on the bending/extending motor 84. Therefore, the axial center of the inner bearing 74 is biased with respect to the axial center of the outer ring bearing 86.
It is possible to prevent the inner bearing 74 and the outer bearing 86 from being locally significantly worn.

A link arm 90 is fixed to the case 82. On the other hand, the link arm 92 is attached to the pin 9 on the upper plate 88.
4. Link arm 90 and link arm 92 are connected by pins 98 and 100 via link par 96. These link arms 90, 92 and link par 96 constitute a U link. link arm 92
One end of a rod 102 is supported by a pin 104 in the middle thereof. On the other hand, a wiper motor 106 is fixed to a case 108. This case 108 houses a worm (not shown) attached to the rotating shaft of the wiper motor 106 and a worm wheel (not shown) pivotally supported by the arm drive shaft 110. The case 108 is fixed to the lower plate 89 of the wiper box 38. An arm 112 is fixed to the arm drive shaft 110.

The tip of this arm 112 is rotatably connected to the rod 102.

Therefore, when the wiper motor 106 is rotated, the arm 11
2 rotates, and the link arm 92 rotates around the pin 94 via the rod 102. This makes the link par 9
6, the link arm 90 rotates, and the arm bending/extending motor 84, inner bearing 74, and first arm 58 shown in FIG. 8 rotate integrally.

This operating state is shown in FIGS. 6(A) to 6(C). FIG. 6(A) shows the state of the wiper arm in the retracted position, which is the state shown in FIG. 1. From this state, the arm 112 rotates counterclockwise, and when the arm 112 faces in the X direction as shown in FIG. 6(B), the wiper arm is in the reversed position X, and the state is as shown in FIG. 2(A). In this state, the arm bending/extending motor 84 is rotated, and the second arm 56
When stretched, the state shown in FIG. 2(B) is obtained. Arm 11
2 further counterclockwise and the arm 112 faces in the Z direction as shown in FIG. 5(C), the wiper blade 54 moves from the position AA" to the position BB' in FIG. 2(B). When the arm 112 is further rotated counterclockwise so that the arm 112 faces in the Y direction as shown by the dashed line in FIG.
Return from position ' to position AA'. Arm 112 is Y
The position facing in the direction is the wiper arm reversal position Y.

Therefore, when the arm 112 rotates from the X direction to the Y direction in FIG. 6(B), the wiper blade 54 makes one reciprocation. The arm 112 rotates counterclockwise from the X direction to the Y direction and clockwise from the Y direction to the X direction.

A wiper control circuit diagram is shown in FIG. 9, and this control is performed by a microcomputer 150. The input port 152 of the microcomputer 150 includes a raindrop sensor 154, a wiper mode changeover switch 156, a washer switch 158, and a louver opening limit switch 160.
, louver close limit switch 162, pop-up limit switch 164, pop-down limit switch 1
66, arm extension limit switch 168, arm retraction limit switch 170, wiper arm storage position limit switch 172, wiper arm reversal position X limit switch 174, wiper arm reversal value WY limit switch 1
A detection signal from 76 is input.

The raindrop sensor 154 is composed of, for example, an infrared photointerrupter or a voltage element, and is configured to detect the presence or absence of rain. Wiper mode selector switch 1
56 is off (OFF), auto mode (A, UTO),
Low mode (1-o) and high mode (Hi) contact signals are supplied to the input port 152.

The louver-opening limit switch 160 and pop-up limit switch 164 close just before reaching the state shown in FIG. 3(B), and the louver closing limit switch 162 and pop-down limit switch 166 close as shown in FIG. 3(A). The circuit is designed to close slightly before reaching the state shown. Further, the arm extension limit switch 168 closes slightly before reaching the state shown in FIG. 2(B), and the arm retraction limit switch 1
70 is designed to close slightly before reaching the state shown in FIG. 2(A). Furthermore, the wiper arm storage position limit switch 172 is closed in the state shown in FIG. 6(A),
The wiper arm inversion position X limit switch 174 is the sixth
The circuit is closed in the state shown in Figure (B), and the wiper arm is in the reverse position Y.
The limit switch 176 is configured to close in the state shown by the dashed line in FIG. 6(B).

A drive signal is supplied from the output boat 178 of the microcomputer 150 to the drive circuit 180, which drives the louver motor 34, the arm bending/extending motor 84, and the wiper motor 106.
, to rotationally drive the washer motor 182. When the rotation of the louver motor 34 and the arm bending/extending motor 84 is mechanically restrained, lock currents are detected by lock current detection circuits 184 and 188, respectively, and sent to the CPU.
It is input to input port 152 as an interrupt signal to l90.

The microcomputer 150 includes a CPU 190 that executes a control program, a ROM 192 that stores this control program, and a RAM that is used as a work area.
194 and the input port 152 and output port 178
and a bus 196 that connects these.

Next, the operation of this embodiment configured as described above will be explained with reference to the control flowcharts shown in FIGS. 10 to 13.

In Fig. 10, wiper mode changeover switch 156 is set to AUT.
A control flowchart when switching to O mode, Lo mode, or Hi mode is shown. First, a case will be described in which the wiper mode selector switch 156 is switched to the Lo mode when the wiper assembly 10 is in the state shown in FIG. 3(A). In addition, in the flowchart, L
S means limit switch.

Since the louver open limit switch 160 is off in step 200, the process proceeds to step 202, and the louver motor 3
4 in the roux opening direction.

Next, the process proceeds to step 204, and after waiting for the louver opening limit switch 160 to be turned on, the pop-up motor 44 is rotated in the upward direction in step 206. Next, in step 20, the process waits for the pop-up limit switch 164 to be turned on. At this time, the louver 28 is as shown in Fig. 3 (B).
The state shown in FIG. 10 is reached, a lock current is detected by the lock current detection circuit 184, an interrupt is applied to the CPU 90, and the control flowchart shown in FIG. 10 is started.

That is, the cause of the interruption is determined in step 300, the process proceeds to step 302, the louver motor 34 is turned off, and the process returns to step 208.

As described above, since the louver opening limit switch 160 and the lock current detection circuit 184 are used, the wiper assembly 10 can be popped up when the louver 28 is almost completely opened, and the louver opening operation and pop-up operation can be processed in parallel. Therefore, the operating time of the wiper assembly 10 can be shortened. Further, since the rotation of the louver motor 34 is stopped by the lock current, there is no need to adjust the stop position of the louver 28, and the rotation of the louver motor 34 is reliably stopped when the louver 28 is in the open state. is stopped, and the louver 28 is prevented from wobbling.

Next, in step 208, the pop-up limit switch 164 is turned on, and in step 209, the pop-up motor 44 is turned off. In this case, the molding 114 and the end of the windshield 12 come into close contact. Further, since the wiper assembly 10 rotates around the fulcrum 42, there is a sufficient distance from the fulcrum 42 to the lower end of the windshield 12, and the molding 114
Do not apply excessive force to the person. Then step 2
10, the wiper motor 106 is rotated in the forward direction, and the wiper arm reverse position X limit switch 17 is set in step 212.
Wait for 4 to turn on. When the wiper arm inversion position As a result, the rise-up is completed and the state shown in FIG. 2(A) is reached. Then step 216 to step 2
18, the arm bending/extending motor 84 is rotated in the direction in which the second arm 56 extends. Next, in step 220, the process waits until the arm elevation limit switch 168 is turned on, and then proceeds to steps 232 and 234, where the wiper motor 106 is rotated forward at low speed. Next, the process advances to step 235 and waits for the wiper arm inversion position Y limit switch 176 to be turned on.

At this time, a lock current flows through the arm bending/extending motor 84 and is detected by the lock current detection circuit 188.
The interrupt processing shown in is started. That is, step 30
The program advances to 0.306, turns off the arm bending/extending motor 84 that was turned on in step 218, and returns to the Ste/Reso 236. At this time, the wiper blade 54 is rotating clockwise as shown in FIG. Turn on,
Proceeding from step 236 to steps 238 and 240, the wiper motor 106 is temporarily turned off and the wiper motor 10 is immediately turned off.
6 at low speed. Next, in step 242, the process waits for the wiper arm inversion position WX limit switch 174 to be turned on. When the wiper blade 54 makes one more reciprocation over the surface of the windshield 12, the wiper arm inversion position

Next, a case will be described in which the wiper mode selector switch 156 is switched to Hi mode. In this case, step 232 proceeds to step 246, and step 2
Proceeding from step 38 to step 248, the wiper motor 106
The operation is the same as in the O mode described above except that the motor is rotated at high speed.

Next, a case will be described in which the wiper mode selector switch 156 is switched to the AUTO mode.

In this case, after performing the processing from step 200 to step 216 in the same manner as above, proceeding to step 250 and proceeding to step 3.
Turn on the 0 second timer. Then steps 252.254
This process is repeated and a signal indicating rain is received from the raindrop sensor 154 is waited for.

If a rain signal is received within 30 seconds, step 25
2, the process proceeds to step 256. Since the wiper assembly 10 is in the state shown in FIG. 1 on 12 sides of the windshield
make it go back and forth.

Next, the process proceeds to step 237, and if a signal indicating rain is received from the raindrop sensor 154, the process proceeds from step 238 to step 2.
The processes up to step 58 are performed, and the wiper blade 54 is made to reciprocate once on the windshield 12 surface. When the rain stops, the rain sensor 154 no longer supplies a rain signal, and the process proceeds from step 237 or 258 to step 260, where the wiper motor 106 is operated until the wiper arm inversion position wX limit switch 174 or the wiper arm inversion position YIJ limit switch 176 is turned on. Rotate. Step 250 then turns on the 30 second timer and step 252.25
Perform the process in step 4 and wait for a signal indicating rain to be supplied.

If it rains again within 30 seconds, the process advances from step 252 to steps 256 and 232, and the same process as described above is repeated.

Therefore, if it rains again within 30 seconds, the second arm 56 will not contract, so it is possible to avoid unnecessary operations such as extending the second arm 56 again.

If the rain sensor 154 does not supply a rain signal even after 30 seconds have elapsed since the timer turned on in step 250,
The process proceeds from step 254 to steps 262 and 264, in which the arm bending/extending motor 84 is rotated in the direction in which the second arm 56 is bent.

Next, in step 266, the arm retraction limit switch 17 is
0 is turned on, the process returns to step 250 and the timer is turned on again. Next, while repeating steps 252 and 254, a lock current flows through the arm bending/extending motor 84, which is detected by the lock current detection circuit 188 and interrupts the CPU 190, starting the interrupt process shown in FIG. Ru. That is, the process advances from step 300 to step 306, where the arm bending/extending motor 84 is turned off and the process returns. If no rain signal is received within 30 seconds, the process proceeds from step 254 to step 262.250, and the above process is repeated while maintaining the state shown in FIG. 2 (A>). Also, if a signal indicating rain is received in step 252, step 256.2
Steps 232 to 258 after processing 18.220
The process will be repeated in the same manner as above.

Thus, in the AUTO mode, if it is not raining, the wiper blade 54 is on standby in the state shown in FIG. 2(A), and if it is raining, the second arm 56 is extended and the wiper blade 54 is reciprocated. Also, if the rain stops, the second arm 56 can be bent and the second
It stands by in the state shown in Figure (A) and is ready to respond immediately if it rains. Therefore, in the case of weather where it rains on and off, it is extremely convenient to set it to AUTO mode.

When the ignition switch is turned off in the state shown in FIG. 2(A) and the ignition switch is turned on again to set the wiper mode selector switch 156 to AUTO2Lo or Hi mode, steps 200.268.270.
The process advances from step 272 to step 216, where processing corresponding to each of the above modes is performed. That is, even if the power is once turned off, the next operation to be performed can be performed accurately.

Similarly, if the pop-up limit switch 160 is turned on but the pop-up limit switch 164 is not turned on, steps 200.268 to 2
We will proceed to 06. In addition, although the louver open limit switch 160 and the pop-up limit switch 164 are on, the wiper arm inversion position
74 is not on, step 200.2
The process will proceed to step 210 from 68.270. Furthermore, a louver opening limit switch 160, a pop-up limit switch 164, and an arm extension limit switch 16 are provided.
8. If both wiper arm inversion position X limit switches 174 are on, step 200.268
．． 270.272.274, and in the case of AUT◯ mode, proceeds to step 250, and in the case of Lo mode or Hi mode, proceeds from step 274 to 232. In this way, without providing a battery for hacking up the RAMI 94, the state before the power is turned off can be known after the power is turned on, and the next operation to be performed can be performed accurately.

In Fig. 12, wiper mode changeover switch 156 is set to AUT.
A control flowchart when switching from OlLo or Hi mode to oFF is shown. Wiper motor 10
Wiper mode changeover switch 156 while 6 rotates forward or reverse.
If the switch is turned off, the process advances from step 400 to step 408, and waits for the wiper arm inversion position Y limit switch 176 or the wiper arm inversion position X limit switch 174 to be turned on. Next, the process proceeds to step 410, where the wiper motor 106 is turned off. This results in the state shown in FIG. 2(B). Next, the process proceeds to step 412, where the arm bending/extending motor 84 is rotated in a direction to bend the second arm 56. Next, in step 414, the process waits until the arm retraction limit switch 170 is turned on, and then proceeds to step 415. If the wiper arm inversion position ilY limit switch 176 is on, step 4
16, the wiper motor 106 is rotated in the forward direction, and if not, the wiper arm reverse position
74 is on, the wiper motor 106 is reversed in step 418.

Next, the process advances to step 420 and waits for the wiper arm storage position limit switch 172 to be turned on.

At this time, a lock current flows through the arm bending/extending motor 84, which is detected by the lock current detection circuit 188 and sent to the CPU.
An interrupt is generated at 190, and the processing shown in FIG. 11 is started. That is, the process advances to steps 300 and 306, and after the arm bending/extending motor 84 is turned off, the process returns to step 420. Wiper arm storage position limit switch 172
When turned on, the process advances to step 422 and the wiper motor 10
Turn off 6. This results in the state shown in FIG.

Next, in step 424, the pop-up motor 44 is rotated in the down direction, and in step 426, the pop-up limit switch 166 is turned on, and then the process proceeds to step 42.
7, the pop-up motor 44 is turned off, and then the opening 29 is turned off.
The louver motor 34 is rotated in the direction of closing, and the process shown in FIG. 12 is completed. Thereafter, a lock current force flows to the louver motor 34, and this is detected by the lock current detection circuit 184, and the interrupt processing shown in FIG. 11 is started.

That is, the process advances to steps 300 and 302, turns off the louver motor 34, and returns to the main routine. In this way, the state shown in FIG. 3(A) is reached.

Therefore, the windshield 12, the louver 28, the hood 14
is flattened, reducing air resistance.

Further, since a portion of the wiper assembly 10 does not protrude from the outer surface of the vehicle, the wiper assembly 10 is not subjected to excessive external force from the vehicle cover, car wash equipment, or the like.

Next, in the case of the AUTO mode, when the wiper mode selector switch 156 is on standby in the state shown in FIG.
OFF, step 400.43
The process will proceed to 6.438.415 and perform the above processing. Similarly, if the wiper mode selector switch 156 is turned OFF in the state shown in FIG. 2(B), the process proceeds to steps 400, 436, and 412. Also, in the state shown in FIG. 1, wiper mode selector switch 156 is turned to
If switched to FF, step 400.436.4
It will proceed to 38.440.424. Furthermore, when the louver 28 is in the state shown by the two-dot chain line in FIG.
．． It will proceed to 428. If the louver 28 is in the position shown by the solid line in the state shown in FIG. 3(A), the process proceeds to steps 400, 436, 438, 440, and 442, and the process ends without operating anything.

In this way, the wiper mode selector switch 156 is turned OFF.
Similarly to when switching the wiper mode selector switch 156 to AUTOLo or Hi mode, it is possible to accurately grasp the state before the power is turned off and perform subsequent processing without backing up the RAM 194 with a battery. becomes.

Next, FIG. 13 shows a part of the washer control flowchart. This flowchart is general.

Initially, the wiper mode selector switch 156 is set to LO or Hi.
A case will be described in which the washer switch 158 is turned on when the mode is changed.

At step 500, from step 200 to step 220
If the processes up to step 220 have not been performed, the process proceeds to steps 502 and 504 after performing the processes up to step 220, in which the washer motor 182 is turned on and washing water is sprayed onto the surface of the windshield 12. Next, in step 506, the washer switch 158 is turned off, and then in step 508, the washer motor 182 is turned off, and the process ends.

Next, when the wiper mode selector switch 156 is switched to the AUTO mode, the washer switch 1
A case will be explained in which the switch 58 is switched to the on side. Step 5
At step 00, if the processing from step 200 to step 220 has not been completed, this is performed. However, it is assumed that the process proceeds from step 214 to 218. Next, proceed to step 5゜2.510.512 and move the washer motor 18.
2 is turned on for 2 seconds, and at the same time, the processes of steps 232 to 242 are repeated twice. That is, the wiper blade 54 is moved back and forth four times. The time for these four round trips is about 5 seconds. Next, the process proceeds from step 514 to step 250, and the AUTO
Move on to mode processing.

Next, a case will be described in which the washer switch 158 is turned on while the wiper mode changeover switch 156 is turned off. In this case, the above A
As in UT○ mode, steps 500.502
．． After processing steps 510 and 512, step 514.
Move to 516.412 wiper mode changeover switch 156
Processing is performed when the switch is turned off. That is,
The second arm 56 is folded and brought to the state shown in FIG. 3(A).

Next, when in AUTO mode, the washer switch 158
If the wiper mode selector switch 156 is switched to OFF after turning on the wiper mode changeover switch 156 before the process of step 512 is completed, the process proceeds to steps 514, 516, and 412.

In addition, after turning on the washer switch 158 when the wiper mode changeover switch 156 is off, step 51
Before completing the process in step 2, wiper mode selector switch 15
6 is switched to AUTO, steps 514 to 25 are performed in the same way as if the wiper mode selector switch 156 had been switched to AUTO mode from the beginning.
It will move to 0.

Incidentally, the rise-up and bending and stretching operations of the wiper arm may be performed at the same time.

Next, a second embodiment of the present invention will be described according to FIG.

In this embodiment, the louver 120 is connected to the louver support arm 12.
2 to the upper plate 88 of the wiper box 38. The louver support arm 122 is formed by bending both ends of a bar to reduce air resistance. Note that the louver support arm 122 is
It may be provided at both ends in the longitudinal direction (direction orthogonal to the plane of the paper in FIG. 13).

FIG. 14(A) shows the stored state of the wiper assembly 10, and similarly to FIG. 3(A), the fluorocarbon 1, the glass 12, the louver 120, and the hood 14 are substantially flush with each other. FIG. 14(B) shows the wiper assembly 10 in a hopped-up state.

In this embodiment, unlike the first embodiment, the rail 30.3
2. There is no need to provide opening/closing mechanisms such as the louver motor 34 and the pipe 36. Therefore, there is no need to control the opening and closing of the louver 120. Moreover, the pop-up and hop-down of the wiper assembly 10 and the opening and closing operations of the louver 120 can be performed simultaneously, and the time required to change from the wiper retracted state to the wiper operating state and the time required for the reverse operation can be shortened.

〔Effect of the invention〕

In the retractable wiper according to the present invention, when the wiper is not in use, the wiper assembly is stored in a storage chamber provided in the vehicle body near the windshield, and the opening above the storage chamber is closed with a shutter, so that the windshield and the hood are separated substantially from each other. Since it is designed to be unified, it has the excellent effect of reducing the air resistance of the vehicle and improving the style of the vehicle.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view showing the wiper assembly stored in the cowl inner of the vehicle, Fig. 2 (A> is a perspective view showing the wiper raised up, and Fig. 2 (B)
) is a perspective view showing the bent first arm shown in FIG. 2(A) in an extended state, FIG. 3(A) is a longitudinal sectional view showing the wiper assembly stored in the cowl inner, In B), the louver is opened from the state shown in Figure 3 (A),
A vertical cross-sectional view showing the wiper assembly in a popped-up state, FIGS. 4A to 4C are front views showing the configuration and operation of the louver, and FIG. 5 is a perspective view of the wiper arm extension/contraction and swing driving device. , FIGS. 6(A) to (C) are plan views for explaining the operation of the drive device in FIG. 5, and FIGS. 7(A) and (
B) is a vertical cross-sectional view of the wiper in FIG. 8 (A), FIG. 9 is a wiper control circuit diagram, FIGS. 10 to 13 are wiper and washer control flowcharts, and FIGS. 14 (A) and (B) are FIG. 3 is a vertical cross-sectional view showing a second embodiment of the present invention. 10... Wiper assembly, 12... Windshield, 14... Hood, 16... Storage chamber, 18... Cowl inner, 20. 120... Louver, 40... Hinge, 42...・Fully point, 44...Pop-up motor.

Claims (1)

[Claims] A storage chamber provided in the vehicle body near the windshield, a wiper assembly stored in the storage chamber, and the wiper assembly moved up and down between a storage position where the wiper assembly is stored in the storage chamber and a raised position where the windshield is wiped. A retractable wiper comprising a lifting means and a shutter that closes an opening above a storage chamber and makes the window glass and the hood substantially flush with each other when the wiper assembly is stored.