JPS60206755A - Wiper arm - Google Patents

Abstract

PURPOSE:To prevent early deterioration at the rubber portion in wiper blade and to limit rattling of wiper blade by securing the wiper blade while contacting lightly against the window panel face. CONSTITUTION:When travelling without using the wiper, the stopper section of retainer 3 is contacted through a spring 7 against first stopper wall 23 and engaged. Consequently, the retainer 3 is set at the first lift position to secure the wiper blade while contacting lightly against the window panel face. Here, the compressive deformation at the rubber portion of wiper blade is temporarily released and even if predetermined wind pressure is applied onto the wiper blade under travelling, the wiper blade is never contact strongly against the window panel face.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wiper arm that supports a wiper blade, and particularly relates to an improvement in a wiper arm of a type equipped with a stopper for restraining and releasing a wiper arm. .

[Prior art]

In general, the wiper arm A is shown in FIG.
As shown in Figure 2, the base end of the arm head 2 is attached to the pivot shaft 1 for rotating the wiper 1, and the AM 111 face-shaped base end of the retainer 3 is fitted to the tip of the arm head 2. The shaft pin 4 is supported 111, and the wiper blade 5 automatically swings with the retainer 3 in a plane substantially perpendicular to the window panel 6 surface to be wiped. A spring 7 is installed to urge the retainer 3 toward the window panel 6. In this type,
The wiper blade 5 is supported by the tip of the retainer 3 and is pressed against the window panel 6 surface by the biasing force of the spring 7, so that the wiper blade 5 wipes the window panel 6 surface via the wiper arm A. They mediate payment operations.

By the way, the wiper blade 5 is the window panel 6.
However, if they are pressed together, the windshield blade 5 will get in the way, resulting in incomplete cleaning of the window panel 6 when washing the car, or if it is left open for a long time under the hot sun in the summer. The wiper blade 5 strongly hits the window panel 6, causing deformation and deterioration of the wiper blade 5B.
will occur. Also, the work of attaching and detaching 1 fiber arm A is a breeze! IE becomes ugly.

In order to eliminate this situation, the conventional wiper arm A is equipped with a stopper 10 that restrains and holds the retainer 3 in a predetermined lift position, as shown in FIG. This allows the wiper blade 5 and the window panel 6 to be fixed apart from each other. As for this persimmon arm, there is one shown on page V-46 of Nissan Su-bis Bulletin No. 486 (introduction of Nissan Silvia and Gazelle S 12 type cars), which is As shown in FIGS. 2 to 4, a plate-shaped stopper 10 k fif extending in the width direction of the arm head 2 is disposed under the distal end 1111 of the arm head 2, and an engagement slit is provided in the longitudinal direction of the stopper 10. 11 is opened, and a locking pin 1 protruding from the lower surface of the tip of the arm head 2 is inserted into the locking slit 11.
2 of the arm head 2 are slidably engaged, while the stopper 10 is pressed down from below with the presser plate 13 fixed to the protruding end of the engagement pin 12, whereby the 1 of the arm head 2
The stopper 10 is slidable along the μh1 direction,
Historically, an operating knob 14 is provided at one end of the stopper 10, and the stopper 10 is moved forward or backward by moving the operating knob 14 forward or backward. In this type, the stopper 10 is pressed in with the operation knob 14. When set to the push-in position 1flP shown in FIG.
The retainer 3 is placed in a position where it does not engage with the retainer 3.
As shown by the solid line in FIG. 2, the window panel 6 is set in its normal position by the biasing force of the spring 7
While pressing the wiper blade 5 against the surface, while holding the retainer 3, pull out the operation knob 14 and set the stopper 10 and the pull-out position P2 shown in FIG. At the hatched stage, the lower part of one proximal edge of the retainer 3 engages with one side edge of the stopper 10 as a locking part, and the retainer 3
As shown by the imaginary line in the figure, the wiper blade 5 is held in a predetermined lift position against the biasing force of the spring 7, and the wiper blade 5 is fixed at a distance from the surface of the window panel 6. In FIGS. 3 and 4, reference numeral 15 denotes a support plate supported at the tip of the arm head 2 and supporting one end of the spring 7.

However, in such a conventional wiper arm, due to the engagement and disengagement between the retainer 3 and the stopper 10, the wiper arm A can be moved to a restraining position where the wiper blade 5 is separated from blood from the window panel and a restraining position where the wiper blade 15 is moved away from the window panel. Since the restraint angle 1 is set at any position excluding the constraint angle 1 where the wiper is pressed against the 6 surfaces, the following problem occurs when the vehicle A is traveling to the right and when the wiper is not used. That is, when the wiper arm A is set to the restraint release position, not only does a portion of the rubber of the wiper blade 5 remain compressed and deformed, but also the wiper blade 5 comes into even stronger pressure contact with the window panel 61m due to the wind pressure when the vehicle is running. The situation is such that the rubber of the blade 5 deteriorates relatively quickly by nB.

On the other hand, when the wiper arm A is set to the restrained position, the wiper blade 5 is spaced apart from the window panel 6m1, so that early deterioration of the rubber portion of the wiper blade 5 described above is suppressed, but the vehicle travels h! Wiper blade 5 above by TtlJ '77
It rattles around and attracts attention from the driver.

[Purpose of the invention]

This invention was made based on the above points,
The purpose of this is the 4V17 wiper arm itself.
It is possible to effectively prevent early deterioration of the rubber part of the wiper blade while maintaining safe vehicle running without compromising the safety and without impairing the original function of the stopper. The purpose of the present invention is to provide a wiper arm that has the following features.

[Tsu & Akira composition]

The basic drawing of this invention is that the retainer and the grip that restrains and holds the retainer in a predetermined lift posture can be engaged at two places, and the wiper is engaged at one of the engagement positions. The wiper blade is brought into light contact with the window panel 1 [II to be restrained and held, and at the other engagement position, the wiper blade is separated from between the window panels and restrained and held.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the embodiment shown in accompanying figure (1).

1-3 in the first embodiment shown in FIGS. 5 to 9, the wiper arm A is equipped with an arm head 2, a retainer 3, and a spring 7 similar to the conventional one,
A stopper 20 that restrains and holds a predetermined lift posture is different from the conventional one.

This stopper 2U is a plate-shaped member having an operating knob 212 at one end, and is slidably attached along the 1ill+5 direction of the lower surface of the tip of the arm head 2, that is, the stopper mounting surface 2a, and the operating knob 21 is pulled out. At times, the stopper 20 near the operation knob 21 is arranged to protrude from one side of the arm head 2. A rectangular notch 22 is formed in the m-edge corner portion of the stopper 20 near the operation knob 21, and the edge of the notch 22 along the longitudinal direction of the stopper 20 is a first stopper wall 23. The notch 22K and the edge near the adjacent operation knob 21 are formed as a second stroke.

It is formed as a collar wall 24. Historically, the lower end of one end 111 of the retainer 3 is engaged with both the stopper walls 23 and 24 as a locking part 30, and the locking part 30 is connected to the first stopper wall 23. When you engage
The retainer 3 connects the wiper blade 5 to the window panel 6.
While the retainer 3 is restrained and held in the first lift position in which the wiper blade 5 is brought into light contact with the window panel 6 +/+i, when the locking portion 30 is engaged with the second stopper 1 24, the retainer 3 moves the wiper blade 5 to the window panel 6 +/+i The second lift position is held for a period of time from i'il#. In FIGS. 5 to 7, n125 is a guide wall that guides the sliding trajectory of the stopper 20, 26 is a guide pin protruding from the stopper face 2a, and 2t is slidable on the guide pin 26. The guide groove 28 that engages with is a holding plate that presses down the stopper 20.

Therefore, according to the wiper arm according to this embodiment, when the wiper is used for protection, as shown in FIG.
Just set it to +. At this time, since the first and second stopper walls n and 24 are both retracted from the side surface of the arm head 2, as shown by solid lines in FIGS. 5 and 8, the locking portion 30 is the stopper wall 23, 2
4 and is set to a non-engaged state. Therefore, as shown by the solid line in FIG. 9, the retainer 3 maintains a predetermined normal posture by the biasing force of the spring 7 without being stopped by the stopper 20, and the wiper blade is brought into contact with the window panel surface. and set the wiper blade wiping operation to 17J 1.
Ji: I will.

In addition, when the vehicle is run when the wiper is not in use, as shown in FIG. , the stopper 20 may be set at the first pull-out position Q2 where the first stopper wall 23 faces the thread stopping portion 30 of the retainer 3. At this time, when you release your hand from the retainer 3, the
As shown by the dashed line in the figure, one thread stop = ++3O of the retainer 3 comes into contact with and engages with the first stopper wall 23 due to the urging force of the sprue/gua, so that the retainer 3 As shown by a dotted copper 11i in FIG. 9, the wiper blade is set in the first horizontal position and fixed by making light contact with the window panel 1IJi. In this case, the compressed deformation of the part of the rubber that touches the wiper blade is temporarily released, and even if a predetermined wind pressure acts on the wiper blade while the vehicle is running, the wiper blade will not touch the window panel surface. This eliminates the strong pressure contact, which effectively eliminates the problem of early deterioration of the rubber part of the wiper blade, as well as the problem of 5It row, jlIi movement, etc. of the vehicle.
C also prevents the wiper blade from shaking unnecessarily, ensuring safe driving of the vehicle.

Furthermore, when washing or removing wiper arm A, remove retainer 3.
is lifted against the biasing force of spring 7, and j, ¥! of spring 20 is lifted. The stopper 20 may be set at a second pull-out position iI'iQs where the second stopper wall 24 faces the locking portion 30 of the retainer 3 by pulling out the operating knob 21 in the opposite direction. At this time, when the retainer 3 is released, the locking portion 30 of the retainer 3 is moved to the second stopper + :, p 24
Since the retainer 3 abuts and engages with the ninth
As shown by the two-dot chain line in FIG. In this case, the wiper blade will no longer get in the way when washing the car, making it possible to completely clean the window panel surface, and the wiper blade will no longer hit the window panel too hard when attaching and detaching the wiper arm A. A loss of 4μ on the window panel surface is also effectively prevented.

Next, a second embodiment shown in FIG. 10 and FIG. 12 will be described.

The stopper 40 according to this embodiment has an operation knob 41 at one end.
It is a plate-like member having a support pin 42 at the other end.
The lower surface of the tip of the arm head 2, ffD, is supported on the stopper mounting cloth 2a, and the vicinity of the operation knob 41 is arranged to protrude from the side σ11 of the arm head 2. The stopper 40 is a plate fixed to the protruding end of the support bin 42, and is swingable in a plane perpendicular to the stopper holding point 2a, and is fixed to the protruding end of the support bin 42. It is pressed down by a spring 43 toward the stopper mounting surface 2a.

In this embodiment, the operation knob 41 of the stopper 40 is
One side edge in the vicinity is a stopper wall 44 that engages with the retainer 3, and a first locking portion 30a is provided at the lower part of one proximal edge of the retainer 3 facing the stopper wall 44.
and a second locking portion 30b are formed respectively, and when the first locking portion 30a and the stopper wall 44 are engaged, the retainer 3 is restrained and held in the first lift position, while the retainer 3 is held in the first lift position. When the second locking portion 301) is engaged with the stopper wall 44, the retainer 3 is restrained and held in the second lift position described above. In addition, the above retainer 3 is always used! When in the working position, the locking parts 30a and 30b
are spaced apart above the stopper wall 44.

Therefore, according to the wiper arm according to this embodiment, the first
As shown in FIGS. 2(a) to (C), the ff of the retainer 3
l By engaging and disengaging the stops 30a, 30b and the stop bar 44 of the stopper 40, it becomes possible to set the retainer 3 in the normal position, the first lift position, and the second lift position, respectively. The same effects as in the first embodiment are achieved.

In addition, in this embodiment, when setting the retainer 3 from the normal position to the first lift position, it is sufficient to simply move the retainer 3 to a predetermined position by N inches. 30a is joined to the upper edge of the stopper wall 44 of the stopper 40, and the stopper 402 is pushed down against the biasing force of the plate spring 43, thereby locking the locking portion 30 of the retainer 3.
At the stage when the upper i has climbed over the upper edge of the stopper wall 44, the stopper 40 automatically returns to its original position, and the stopper 4
The locking portion 3Ua of the retainer 30 engages with the stopper wall 44 of the U. Then, attach the retainer 3 to the second glue 7).
When setting it to the W position, it is sufficient to further lift the retainer 3. In this case, the locking portion 32b of the retainer 3 engages the upper edge of the stopper wall 44, and the
is pushed down against the biasing force of the leaf spring 43, and the mud locking part 3
2b is automatically returned to the original position ID, and the locking portion 32b engages with the stopper C; q, 44'. On the other hand, when returning the retainer 3 from the first or second lift position to the normal position, the operation knob 41 is pressed in a direction away from the stopper mounting surface 2a, and the engagement between the stopper 40 and the retainer 3 is adjusted. ) instead of canceling the lock. As described above, in this embodiment, when the retainer 3 is set to a predetermined lift position, it is not necessary to operate the stopper 3, and when the retainer 3 in the lift position is returned to the normal position, the operation knob 41 is simply pressed. Since the simple operation of pressing +7R is sufficient, even if the wiper arm A is installed in a narrow space such as in a concealed wiper, the locking and releasing operations of the wiper arm A are much easier than in the first embodiment. It gets easier.

Next, a third embodiment shown in FIGS. 13 to 15 will be described.

Stopper 50 according to this embodiment (11)
Like the 'L example', it is a rectangular member having an operating knob 51 at one end, but unlike the above embodiments, the rest i1:!
, the i portion is pivoted to the lower surface of the tip of the arm head 2, 1'lJ, and the stopper mounting surface 2a with a support l1g1l 52, and the vicinity of the operation knob 51 is arranged so as to protrude from the side surface of the arm head 2. . And upper a self stopper 5
0 is able to swing freely around the support shaft 52 in a plane substantially parallel to the stopper face 2a, and one swing circumference of the stopper 50 is approximately The retainer release value iaS+ is tilted in a direction away from the retainer 3, and the retainer restraint position 'M82 is set substantially along the width direction of the arm head 2. The positioning of the first upward stopper 50 at the swinging end is performed, for example, by using four portions 53 for positioning 111 formed on the retainer M removal WS and the stopper mounting surface 2a located at the retainer restraining position S2, respectively. With the positioning convex portion 54 formed on the stopper 50 portion corresponding to the four portions 53, +
j (11) This is done by clicking the machine.
In the figure, reference numeral 55 is a holding plate fixed to the protruding end of the support @ 52 to prevent the stopper 50 from coming off the support shaft 52, and 56 is a holding plate that prevents the stopper 50 from rotating beyond the retainer release position 81. This is a position regulating step.

Further, in this embodiment, one edge of the stopper 50 near the operation knob 51 is a stopper portion 57;
A pair of retaining grooves 31a and 31b into which the -J2 stopper portion 57 fits into one proximal recessed portion of the retainer 3.
is formed, and the stopper portion 57 and one of the locking grooves 31a
When engaged with the retainer 3, the retainer 3 is restrained and held in the first lift position, and the stopper portion 51
When the retainer 3 and the other lock 1M31b are engaged, the retainer 3 is held in the second lift position tζ.

Therefore, even in this embodiment, the locking rM of the retainer 3
By interfacing the retainer 31a, 31b with the stopper portion 57kk of the stopper 50, the retainer 3 can be set in three positions, so that the same functions and effects as in the first and third embodiments can be achieved.

In addition, in this embodiment 01, when the retainer 3 is set in the normal position, the stopper 50 may be set to the retainer 111 (displacement 1% 81; in this case, the retainer 3 is set to the stopper 5o). It becomes a non-one thread state,
The normal posture of 1 cylinder 1 il is set by the force of the spring 7. When setting the retainer 3 from the normal posture to the second or second lift posture,
While lifting the retainer 3 to the 1st position, the stopper 50 is set to the retainer restraint position i+fs2, and the stopper portion 50 is placed in the -th or second locking groove 31a, 31b.
1 may be engaged. On the other hand, the above retainer 3! r19 "When returning from the fixed lift posture to the single posture, after slightly lifting the retainer 3,
0 to the retainer release position S1 to release the retainer 3 and the stopper 50 from the locked state. In such an operation of the stopper 50, the stopper 50
The operation knob 51 is located at 1, lI! from the support point. Since they are spaced apart by a degree, the A1 movement + 1LIL trace of the operation knob 51 extends approximately 11:) in the length direction of the arm head 2. Therefore, it is possible to make both directions of the operating knob 51 substantially coincide with the length direction of the arm head 2 (, iJ), and accordingly, the operating knob 51 is moved in the horizontal and vertical width directions of the arm head 2. -・There is no need to secure a working space.As a result, like a concealed wiper, etc.
Even if the winding arm A is arranged in a narrow space, the operation of the j-■ operation knob 51 will not be troublesome, and the binding and release operations of the winding arm A will be easier than in the first embodiment. It becomes extremely easy.

In addition, in each of the above embodiments, the arm head 2
A stopper is provided on the lower surface of the tip of the arm head 2, but the stopper 1. The stopper and the retainer may be engaged with each other at two predetermined locations. Further, the specific 4,177 commands of the stopper and retainer-side locking portions are not limited to those shown in each of the above embodiments, and the design may be changed as appropriate.

〔Effect of the invention〕

As explained above, according to the wiper arm according to Invention G, the wiper blade can be used as a gift to allow the vehicle to run when the wiper is not in use. Since it can be fixed in contact with the window panel surface, the compressive deformation of the rubber part of the wiper blade is released, and the wiper blade is even stronger against the window panel surface due to the wind pressure of the vehicle running. Pressure contact avoids the loose state, which not only effectively suppresses the early deterioration of the rubber part of the wiper blade, but also prevents the wiper blade from wobbling due to the movement of the vehicle. Due to regulations, safe driving of vehicles is prohibited.
(II can be maintained. Also, according to this invention,
When washing the car or removing the wiper arm, the stopper's action allows you to move the wiper blade away from the window panel and fix it.
In other words, is it workability when washing the car or removing the wiper arm? There is no fear of loss.

Furthermore, since the wiper arm according to the present invention is constructed by improving a part of an existing stopper or retainer, there is no need for an increase in the number of parts, and there is no need to worry about the structure of the fiber arm being unnecessarily complicated. Not at all.

[Brief explanation of the drawing]

Figure 11'4 is a perspective view of the automobile viewed from the front; Figure 2 is a view of an example of a conventional wiper arm as seen from the arrow direction in Figure 1; Figure 3 is the state when the wiper arm is released from restraint. FIG. 4 is an explanatory perspective view similar to FIG. 3 showing a state in which the wiper arm is restrained, and FIG. 5 is a first implementation of the wiper arm according to the present invention. 6 and 7 are perspective views similar to FIG. 5 showing different states when the wiper arm is restrained, and FIG. 8 is a perspective view illustrating the main parts similar to FIG. 3 showing an example. An explanatory diagram showing the relative relationship between the retainer and the stopper when the wiper arm is restrained and released, FIG. 9 is similar to FIG. 2 showing the change in the posture of the wiper arm when the wiper arm is restrained and released.
,! The clear perspective view, FIG. 10, is an explanatory perspective view corresponding to FIG. 5 showing the second embodiment of the wiper arm according to the present invention.
, Fig. 12(a) to (C) show the states when the wiper arm is released, when a single wiper arm is restrained, and when the wiper arm of Mu32 is restrained. Figure 13 is a third embodiment of the wiper arm according to the present invention.
-XIV line 11j + side view, FIG. 15 is an explanatory view seen from the XV direction in FIG. 13 showing the opening movement range of the stopper. A... Wiper arm 1... Pivot shaft 2.
・・Arm head 2a・・Stock collar installation + (+i3
... Retainer 5 ... Wiper blade 6 ... Window panel 7 ... Spring (biasing means) ltj, 20, 40, 5 (J... Stopper 1
4, 21, 41, 51...operation knob (operation section)
23...First stopper wall 24...Second stopper wall 30, 302, 301)...Engagement part 31a,
3tb ・、、Latching groove (locking part) 44... Stopper wall 57... Stopper general, i1; Applicant: Nissan Motor Co., Ltd. [Figure 'fX2 Figure So: Figure 5 A/ City Figure 6 , ISl Figure 8 Figure 26 Figure 9 Figure 1 O Figure A/ 1 [ 12 [4 (0) (b) Figure 13! , 4i Figure 15 ~ 51 2 51 2° (.

Claims (1)

[Claims] An arm head attached to a pivot shaft for movable wiper 1jJj, and a swinging white eye attached to the arm head for free movement in a plane substantially perpendicular to the window panel surface to be wiped by the wiper blade.
:! a retainer that supports the wiper blade in five parts;
a wiper arm provided with a biasing means installed between the retainer and the arm head and biasing the retainer toward the window panel so as to press the wiper blade against the window panel surface; In the above, the arm head 2 is provided with a stopper that engages the retainer at two places and restrains and holds the retainer 2 against the urging force Qζ of the retainer 2 urging means, and at one engagement position, the wiper blade is moved toward the window. A wiper arm is characterized in that the wiper arm is restrained and held by making light contact with a panel surface, and is restrained and held by being separated from the wiper blade and the window panel surface at a position where the wiper blade is engaged by an external force.