JPH0512138Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a wiper device for a vehicle, and particularly to a wiper device for a vehicle that can lift the wiper blade or reduce pressure when the wiper device is stopped. Regarding a wiper device.

[Prior Art] Conventionally, a technique has been proposed in which the wiper blade is housed on a molding that covers the lower part of the vehicle glass window when the wiper operation is stopped.

For example, the technology proposed in Japanese Utility Model Publication No. 60-9765, as shown in FIG. Arm engaging portion 3 having an inclined guide surface 33a that
3, and a vehicle body side mounting portion 34 fixed to the vehicle body 39.
and a buffer section 38 that is interposed between the arm engaging section 33 and the vehicle body side mounting section 34 and connects the two, and the inclined guide surface 33a of the member 31 is formed.
A technique has been proposed in which the wiper arm 32 slides on the wiper arm 32.

Furthermore, as shown in FIG. 4, the technique proposed in Japanese Patent Application Laid-Open No. 58-63551 is that a U-shaped support 41 fixed to the vehicle body 49 and a bolt nut installed between the U-shaped support 41 48, consists of a rotating member 43 rotatably connected via a torsion spring (not shown) or the like, and a wiper arm engaging member 44 fitted and fixed to the rotating member 43. ,
The protrusion 44b of the engagement member 44 is connected to the wiper arm 4.
5, the rotating member 43 and the wiper arm engaging member 44 rotate around the bolt 48, and the wiper arm 45 rides on the inclined portion 44a of the engaging member 44, lifting the wiper blade. It is structured as follows.

[Problems with the prior art] In the proposed technology shown in the above-mentioned Japanese Utility Model Publication No. 60-9765, when the wiper is stopped, the wiper arm 32 is lifted by sliding on the inclined guide surface 33a, so that the wiper arm 32 and the inclined guide There has been a problem that a large impact force acts on the surface 33a, causing abnormal noise, or that the sliding surface 33a stops halfway along the sliding surface 33a because it is fixed. Moreover, the elastic material 38 may help stop the sliding surface 33a midway.

Furthermore, the technique proposed in Japanese Patent Application Laid-Open No. 58-63551 performs a circular motion using the bolt 48 as a fulcrum, so it can be lifted smoothly without producing the above-mentioned problem, but the lift of the arm 45 is In order to ensure a sufficient amount (lifting amount), since the fulcrum (bolt 48) is one, it is necessary to increase the distance β between the fulcrum, the U-shaped support base 41 that moves circularly, and the wiper arm engaging member 44. As a result, the rotation distance α increases. If the distances α and β are increased, the force in the rotational axis direction increases, making it difficult to rotate, causing problems such as generation of abnormal noise and failure to lift. In addition, there were problems in that there were many component parts and manufacturing steps were increased.

This invention was made in view of the above points,
To provide a wiper device for a vehicle that has a simple configuration, can reliably and smoothly lift a wiper blade without generating abnormal noise, and does not generate impact noise or the like.

[Means for Solving the Problems] As a means for solving the above problems, the present invention provides a vehicle wiper equipped with a lifter device fixed to the vehicle body at a wiper blade stopping position below the vehicle window glass. In the device, the lifter device is formed of a base that is attached to the vehicle body, and a receiving portion made of at least an elastic member that is integrated with the base via a bendable connection portion, and the receiving portion is attached to the wiper side. When pressed by the wiper, the connecting portion between the base portion and the receiving portion is bent, and the wiper side is positioned on the receiving portion. Further, it is preferable to install a leaf spring inside the connecting portion constituting the lifter device.

[Operation] The present invention having the above configuration will be explained using the embodiment shown in FIG. 1 as an example.

When the wiper device is in operation, the receiving portion 3 of the lifter device 1 is moved by the elasticity of the elastic body itself.
The receiving portion 3 is always in an upright state as shown in FIG. 1D.

When the wiper device is stopped, the wiper blade 7 is controlled to be in the stop position shown by the chain line in FIG. 1A. In other words, the wiper blade 7 moves in the direction of the arrow Y. At this time, the engaging member 12 comes into contact with the receiving part 3 made of an elastic material, and the receiving part 3 is moved along the arrow X.
Push to the side. Since the receiving portion 3 of the lifter device 1 is made of an elastic material, the receiving portion 3 is bent from the thin wall portion 4 which serves as a connecting portion. When the arm piece 9 further moves in the direction of the arrow Y, the engaging member 12 rides on the receiving surface 3a of the receiving section 3, and the back surface 3c of the receiving section 3 is bent until it joins to the upper surface 2c of the base 2.

In this way, the receiving part 3 bends backward from the thin wall part 5 as a connecting part formed in the corner part 4, and the engaging member 12 rides on the receiving surface 3a of the receiving part 3, so that the wiper blade 7 is smoothly moved. can be lifted.

Further, by changing the thickness of the base portion 2 and the receiving portion 3, the lifting amount can be changed.

Further, since at least the receiving portion 3 of the lifter device 1 is formed of an elastic body, no abnormal noise is generated when it comes into contact with the engaging member 12.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

However, as a matter of course, the components, other members, arrangement, etc. described or illustrated in the following explanation examples are not intended to limit the present invention.
This is just an illustrative example.

1 shows a first embodiment of the present invention, FIG. 1A is a partially cutaway front view showing the main parts of a vehicle wiper device, FIG. 1B is a perspective view of a lifter device, and FIG.
Figure C is - of Figure 1 A when the wiper is stopped.
FIG. 1D is an enlarged cross-sectional view taken along the line -- of FIG. 1A.

In FIG. 1A, reference numeral 1 indicates a lifter device according to the present invention, reference numeral 10 indicates a front window glass of a vehicle, and reference numeral 11 indicates a rear end portion of a bonnet. Also code 7
is the wiper blade, code 8 is the arm retainer,
Reference numeral 9 indicates an arm piece, and reference numeral 12 indicates an engaging member, each of which constitutes the wiper side.

The arm retainer 8 is connected to a drive shaft 14 via a pivot (not shown), and the drive shaft 14 is connected to a wiper motor (both not shown) via a link rod. When the wiper operation is stopped, the wiper is stored and stopped at the position shown by the broken line under the window glass 10 by a control device (not shown). In addition, in this example, using the screw 7b as a mounting tool, the engagement member 12 is attached to the blade fitting 7a as a separate item.
are fixed and engaged with a lifter device 1 and a slider portion 3, which will be described later. The coupling position of the engaging member 12 and the blade fitting 7a may be aligned with the position of the lifter device 1, which will be described later, but in consideration of wind pressure, balance, etc., it is preferable that the coupling position between the arm piece (or wiper arm) and the blade fitting The mounting position is suitable.

The lifter device 1 according to the present invention is entirely made of resin,
Rubber and other elastic materials, preferably light, water,
It is made of a material that does not easily deteriorate due to temperature or the like, has an L-shaped cross section as shown in FIG. 1B, and is composed of a base portion 2 and a receiving portion 3.

The base portion 2 has a hook portion 2a that engages with the vehicle body molding 13.
, a recess 2d for accommodating the mounting bolt 2b, and a surface 2c that comes into contact with a back surface 3c of the receiving portion 3, which will be described next.

The receiving portion 3 includes a receiving surface 3a and a stopper 3b formed at an end of the receiving surface 3a. A corner portion 4 having an L-shaped cross section, which is a connection portion between the base portion 2 and the receiving portion 3, is formed with a thin wall portion 5 so as to be bendable. In this example, in order to form the thin part 5,
The inner corner of the L-shaped cross section of the corner 4 (that is, the continuous portion of the surface 2c and the surface 3c) is cut away.

In addition, irregularities are formed on the back surface of the receiving part 3, that is, the surface 3c that contacts the upper surface of the base, and the upper surface 2c of the base, or both of these surfaces 2c, 3c.
can be formed to prevent them from joining together.

The stopper 3b is also formed at the extreme end (on the opposite side to the glass window 10) in this example, but it may be formed closer to the middle.

Assembling each of the above configurations involves connecting the hook portion 2a formed on the base portion 2 to the hole drilled in the vehicle body molding 13.
3a and further formed in the base 2.
Using the mounting bolt 2b from d, attach the molding 13 on the vehicle body side.
mounted on.

In the above embodiment, the base and the receiving part are made of the same material, but the base can be made of a hard resin, and the parts from the connecting part (that is, the bent part) to the receiving part can be made of a soft resin. Further, in the above embodiment, the lifter device is engaged with a separate engagement member, but the present invention is not limited to this, and the lifter device may be configured to be engaged directly with an arm retainer or an arm piece.

Furthermore, as explained in FIG. 2 below, also in the above embodiment, a leaf spring material may be inserted into the lifter device.

FIG. 2B is an enlarged sectional view similar to FIG. 1D when the wiper is stopped, showing another embodiment.

In the following examples, the same configurations, members, etc. as in the above-mentioned embodiments are denoted by the same reference numerals, and the explanation thereof will be omitted.

The wiper blade 21 in this example is shown in FIG.
A grip 23 having a fitting hole 23a is formed on the side surface of the blade fitting 21a as shown in FIG. It is something.

In this example, the engaging member 22 is fixed to the grip 23 using screws 24. The present invention can also be applied to a wiper device as shown in this example.

Further, in this example, a spring plate member 26 is integrally inserted into a bent portion that is a connecting portion of the lifter device 25, and is configured to be constantly biased in the arrow Z direction. With the configuration of this example, even if the elastic body of the lifter device 25 deteriorates, the receiving portion 3 of the lifter device 25 can always be formed in an upright state. Furthermore, leaf spring material 2
By inserting 6, the upper surface 2 of the base 2
c and the back surface 3c of the receiving part 3 can be prevented from joining.

[Effects of the invention] In the present invention, the lifter device itself is made of an elastic material, and the receiving portion constituting the lifter device is bent by being brought into contact with the wiper side of the wiper arm, arm retainer, arm piece, engaging member, etc. Therefore, the wiper can be locked and lifted without making any noise.

Furthermore, since the structure is simple, manufacturing is easy.

[Brief explanation of the drawing]

1 shows a first embodiment of the present invention, FIG. 1A is a partially cutaway front view showing the main parts of a vehicle wiper device, FIG. 1B is a perspective view of a lifter device, and FIG.
Figure C is - of Figure 1 A when the wiper is stopped.
FIG. 1D is an enlarged sectional view taken along line - in FIG. 1A, FIG. 2A is a front view of another vehicle wiper device, and FIG. 2B is another implementation. FIGS. 3 and 4 are enlarged sectional views showing an example, and are similar to FIGS. 1C and 1D when the wiper is stopped, showing a conventional example. 1, 25... Lifter device, 2... Base, 3...
Receiving part, 4... Connecting part (corner part, bent part), 7, 2
1...Wiper blade, 10...Glass window, 9
...Arm piece, 12, 22...Engagement member, 2
6...Plate spring.

Claims (1)

[Claims for Utility Model Registration] 1. A wiper device for a vehicle equipped with a lifter device fixed to the vehicle body at a wiper blade stopping position below the vehicle window glass, the lifter device comprising a base portion attached to the vehicle body, and the base portion. and a receiving part made of at least an elastic member that is integrated with the base via a bendable connecting part, and the receiving part is pressed by the wiper side to connect the base and the receiving part. A wiper device for a vehicle, characterized in that a portion is bent and the wiper side is positioned on a receiving portion. 2 Inside the connecting part constituting the lifter device,
A wiper device for a vehicle according to claim 1, characterized in that a leaf spring is installed.