JP3586935B2 - Industrial vehicle wiper mechanism - Google Patents

Description

[0001]
[Meaning of main terms]
The "industrial vehicle" in this specification broadly includes vehicles used for industrial purposes, such as forklifts and towing tractors.
[0002]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wiper mechanism installed on a windshield of an industrial vehicle.
[0003]
[Prior art]
Conventionally, as for a wiper mechanism installed on a windshield of an industrial vehicle, as shown in FIG. 8, a rotation center 15 is provided at an upper corner (upper left in FIG. 8) of the windshield 3, and a motor (not shown) is provided. There has been known a configuration in which rainwater or the like adhering to the outer surface of the windshield 3 is removed by rotating the wiper 11 through a cutter or the like. The reason why the center of rotation 15 of the wiper 11 is provided at the upper corner of the windshield 3 is to secure a forward view through the windshield 3.
[0004]
[Problems to be solved by the invention]
According to the above-mentioned conventional wiper mechanism, when the wiper 11 rotates in the direction of its lower rotation limit position (indicated by the symbol B in the drawing), rainwater is removed in the left pillar 5a direction. When rotating in the direction of the rotation upper limit position (indicated by the symbol A in the figure), the once-raised rainwater drips down toward the center of the windshield 3 as shown in FIG. There was a problem that the front view over 3 was obstructed.
[0005]
The present invention is directed to a wiper for an industrial vehicle capable of ensuring a good front view by further improving a wiper mechanism having a structure in which a rotation center of the wiper is provided at an upper corner of a windshield. It is an object to provide a mechanism.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention takes the following measures.
According to a first aspect of the present invention, a wiper that rotates about an upper corner portion of the windshield and an outer surface of the windshield near the upper rotation limit position of the wiper are extended in an inclined manner with respect to a horizontal direction, and the wiper the water on the windshield that is splashed possess a water collecting possible drainage groove or the drainage step portions,
A ridge projecting outward from the windshield extends along a lower edge of the drain groove or drain step, and
A wiper mechanism for an industrial vehicle , wherein a blade of the wiper can contact the ridge from below when the wiper is at a rotation upper limit position .
[0007]
According to the first aspect of the present invention, the water on the windshield is swept up above the windshield by the wiper rotating around the upper corner of the windshield rotating toward the rotation upper limit position. The water thus pumped up is collected in a drain groove or a drain step near the upper limit position of the wiper.
Since the drain groove or the drain step extends in an inclined manner with respect to the horizontal direction, the collected water does not spill downward, and the drain groove or the drain step is inclined downward. It flows to. Therefore, the obstruction of the front view through the windshield is effectively prevented.
Further, when the wiper is at the rotation upper limit position, the blade of the wiper abuts from below on a ridge extending along the lower edge of the drain groove or the drain step. By this contact, the water on the windshield lifted up by the wiper is forcibly collected in the drain groove or the drain step. In addition, the collected water is prevented from flowing downward by the ridges extending along the lower edge, so that the water collecting effect is further increased.
[0008]
The invention according to claim 2 is characterized in that a drainage guideway extending vertically is connected to a downwardly inclined end of the drainage groove or the drainage stepped portion. Industrial vehicle wiper mechanism.
[0009]
According to the second aspect of the present invention, the drain groove or the drain step is connected to the downwardly inclined end of the drain groove or the drain step extending vertically. The water collected by the above is drained downward through the drainage guideway.
[0010]
The invention according to claim 3 is a wiper that rotates around an upper corner of the windshield,
A drain groove or a drain step extending obliquely with respect to the horizontal direction on the outer surface of the windshield near the upper rotation limit position of the wiper and capable of collecting water on the windshield swept up by the wiper; And having
The industrial vehicle according to claim 1, wherein a drain guideway extending vertically is connected to a downwardly inclined end of the drain groove or the drain step. This is the wiper mechanism.
[0011]
According to the third aspect of the present invention, the water on the windshield is swept up above the windshield when the wiper that rotates about the upper corner of the windshield rotates toward the rotation upper limit position. The water thus pumped up is collected in a drain groove or a drain step near the upper limit position of the wiper.
Since the drain groove or the drain step extends in an inclined manner with respect to the horizontal direction, the collected water does not spill downward, and the drain groove or the drain step is inclined downward. It flows to. Therefore, the obstruction of the front view through the windshield is effectively prevented.
Furthermore, a drainage guideway extending vertically is connected to the downwardly inclined end of the drainage groove or drainage step, and the water collected by the drainage groove or drainage step is not connected to the drainage guideway. Then, the water is drained downward through the drainage guideway.
[0012]
According to a fourth aspect of the present invention, there is provided a wiper which rotates around an upper corner of a windshield, and a longitudinal direction of the wiper which is installed on the wiper and which is at a rotation upper limit position. And an auxiliary wiper slidable along the line.
[0013]
According to the fourth aspect of the present invention, the water on the windshield is swept up above the windshield by the wiper rotating around the upper corner of the windshield rotating toward the upper rotation limit position.
When the wiper is at the upper rotation limit position, the auxiliary wiper installed on the wiper slides along the longitudinal direction of the wiper, so that the water swept up by the wiper slides on the auxiliary wiper. The movement removes the windshield toward the outer edge.
Therefore, the water scooped up by the wiper does not hang downward and is effectively prevented from obstructing the front view through the windshield.
Further, the invention according to claim 5 is a wiper that rotates around an upper corner portion of the windshield,
An industrial step having a drain step extending in an inclined manner with respect to a horizontal direction on an outer surface of a windshield near a rotation upper limit position of the wiper and capable of collecting water on the windshield swept up by the wiper; This is a vehicle wiper mechanism.
According to the fifth aspect of the present invention, the water on the windshield is swept up above the windshield when the wiper that rotates about the upper corner of the windshield rotates toward the upper rotation limit position. The pumped water is collected at a drain step near the upper-limit position of the wiper.
Since the drain step extends in an inclined manner with respect to the horizontal direction, the collected water flows downward in the drain step without dripping downward. Therefore, the obstruction of the front view through the windshield is effectively prevented.
[0014]
[Effects of the present invention]
According to the present invention, by further improving the wiper mechanism having a structure in which the center of rotation of the wiper is provided at the upper corner of the windshield, an industrial vehicle capable of ensuring a good front view can be provided. A wiper mechanism has been provided.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments embodying the “wiper mechanism for industrial vehicles” of the present invention will be described with reference to the drawings.
[0016]
(Embodiment 1)
As shown in FIG. 1, a wiper mechanism 1 according to a first embodiment of the present invention includes a wiper 11 rotatable around an upper corner portion of a windshield 3, and a rotation of the wiper 11. A drain groove 21 formed on the outer surface of the windshield 3 in the vicinity of the upper movement limit position is mainly configured.
The wiper 11 rotates around a rotation center 15 provided at the upper corner of the windshield 3 through a motor (not shown) or the like in a range of a rotation upper limit position A and a rotation lower limit position B. It is possible to move. Then, when turning in the direction of the rotation upper limit position A, water on the outer surface of the windshield 3 is lifted up and removed, and when turning in the direction of the rotation lower limit position B, the windshield 3 is rotated. Water on the outer surface is removed in the direction of the side pillar 5a.
The drain groove 21 extends in an inclined manner with respect to the horizontal direction (in FIG. 1, inclined downward to the right), and as shown in FIG. The outer surface of the windshield 3 is formed in a concave shape.
[0017]
When the wiper 11 rotates in the direction of the rotation upper limit position A, as shown in FIG. 2A, the water swept upward by the blade 13 of the wiper 11 is sent to the drain groove 21. The water collected in the drain groove 21 is transferred to the side pillar 5b of the windshield 3 and drained according to the inclination of the drain groove 21 shown in FIG.
Therefore, when the wiper 11 rotates in the direction of the rotation upper limit position A, the water scooped upward by the blade 13 of the wiper 11 does not hang down on the windshield 3, and the front view through the windshield 3. Is prevented .
[0018]
(Embodiment 2)
The second embodiment relates to a form in which the drainage groove in the first embodiment is replaced. That is, as shown in FIG. 3A, the windshield is formed by laminating two glasses indicated by reference numerals 3 and 3a, and a step formed between the two glasses 3, 3a. Is a drain step 31.
Although not particularly shown, the drain step 31 also extends obliquely with respect to the horizontal direction, similarly to the drain groove 21 (see FIG. 1).
In the second embodiment, since there is no need to provide a groove in the windshield 3, it is possible to prevent a decrease in the strength of the windshield.
The other components are the same as those in the first embodiment, and the description is omitted for convenience.
[0019]
When the wiper 11 rotates in the direction of the rotation upper limit position A (see FIG. 1), as shown in FIG. 3A, the water swept upward by the blade 13 of the wiper 11 is discharged to the drain step 31. Sent to The water collected by the drain step 31 is transferred to the side pillar 5b of the windshield 3 and drained according to the inclination of the drain step 31 .
[0020]
(Example of change)
The first and second embodiments described above can be appropriately changed. That is, as shown in FIGS. 2 (b) to 3 (b), a ridge 41 is formed at the lower edge of the drain groove 21 or the drain step 31 so that the drain groove 21 or the drain groove is once formed. This is a modified example in which the water collected in the step portion 31 does not easily flow downward .
According to this modified example, a structure is obtained in which the water once collected in the drain groove or the drain step is unlikely to hang downward and flow.
[0021]
(Other changes)
As another modification example of the first and second embodiments, as shown in FIGS. 4A and 4B, a front edge of the drainage groove 21 or the drainage step portion 31 is formed at the lower edge portion. There is a modified example in which a ridge 43 formed to project outward from the glass (to the left in the drawing) is added. That is, when the wiper 11 is at the upper rotation limit position, the blade 13 of the wiper 11 is brought into contact with the ridge 43 from below.
Due to this contact, the water on the outer surface of the windshield 3 that has been scraped up by the blade 13 of the wiper 11 is forcibly collected in the drainage groove 21 or the drainage stepped portion 31. In addition, the collected water is prevented from dripping downward by the ridges extending along the lower edge, so that the water collecting effect is further increased .
[0022]
(Embodiment 3)
Next, a third embodiment will be described. As shown in FIG. 5, this is a modified example in which a drain guide path 45 is connected to the downwardly inclined end 21a of the drain groove 21.
The drainage guide path 45 extends in the up-down direction, and although not particularly shown, is formed in a groove shape in the third embodiment similarly to the drainage groove 21.
The water collected by the drainage groove 21 flows in a downward inclination direction (rightward in FIG. 5) of the drainage groove 21 and is further guided downward through the drainage guide path 45 to be drained. .
According to this embodiment, the water on the outer surface of the windshield 3 is not only collected in the drain groove 21 via the wiper 11, but is also reliably guided downward by the drain guide path 45. As a result, the front view through the windshield 3 is ensured more reliably.
Although not particularly shown, the drain guide path 45 can be connected to the downwardly inclined end of the drain step 31 in the second embodiment.
[0023]
(Example of change)
As a modification of the third embodiment, as shown in FIGS. 6A and 6B, there is a configuration in which the drainage guide path is also used as the pillar 5. That is, the lower inclined end 21a of the drainage groove 21 is connected to the pillar 5 formed in a hollow shape, and the drainage hole 47 is provided in the pillar 5 at the connection portion. This is a modification in which the water is sent to the hollow portion in the pillar 5. The water is guided downward through the hollow portion in the pillar 5 and drained. According to this modified example, since the pillar 5 also has the function of the drainage guideway, the structure of the windshield 3 can be prevented from being complicated.
[0024]
(Embodiment 4)
Next, a fourth embodiment will be described. As shown in FIG. 7, an auxiliary wiper 51 is provided on the wiper 11. The auxiliary wiper 51 is slidable along the longitudinal direction of the wiper 11, and slides from the right end to the left end of the wiper 11 when the wiper 11 is at the upper rotation limit position A. Is transferred to As a sliding method of the auxiliary wiper 51, any method such as a spring, a motor, and a cylinder can be adopted.
Then, the water on the windshield 3 is lifted up above the windshield by the rotation of the wiper 11 in the direction of the rotation upper limit position A.
Next, when the wiper 11 is at the rotation upper limit position A, the auxiliary wiper 51 installed on the wiper 11 slides from the right end to the left end in the drawing along the longitudinal direction of the wiper 11, The water swept up by the wiper 11 is removed by the sliding of the auxiliary wiper 51 in the direction of the side pillar 5a of the windshield.
Therefore, the water scooped up by the wiper does not hang downward and is effectively prevented from obstructing the front view through the windshield.
This embodiment corresponds to the fourth aspect of the present invention.
[Brief description of the drawings]
FIG. 1 is a diagram showing a structure of a first embodiment of a wiper mechanism.
FIG. 2 is a diagram showing a longitudinal sectional structure of a wiper mechanism according to the first embodiment.
FIG. 3 is a diagram illustrating a structure according to a second embodiment;
FIG. 4 is a diagram showing a structure of another modification of the first and second embodiments.
FIG. 5 is a diagram illustrating a structure according to a third embodiment;
FIG. 6 is a diagram illustrating a structure of a modification of the third embodiment.
FIG. 7 is a diagram illustrating a structure according to a fourth embodiment;
FIG. 8 is a view showing a structure of a conventional wiper mechanism of an industrial vehicle.
FIG. 9 is a view showing a problem of a conventional wiper mechanism of an industrial vehicle.
[Explanation of symbols]
3 Windshield 11 Wiper
21 Drainage groove 31 Drainage step 45 Drainage guideway 51 Auxiliary wiper

Claims (5)

A wiper that rotates around the upper corner of the windshield,
A drain groove or a drain step extending obliquely with respect to the horizontal direction on the outer surface of the windshield near the upper rotation limit position of the wiper and capable of collecting water on the windshield swept up by the wiper; It has a door,
A ridge projecting outward from the windshield extends along a lower edge of the drain groove or drain step, and
A wiper mechanism for an industrial vehicle , wherein a blade of the wiper can contact the ridge from below when the wiper is at a rotation upper limit position . 2. The wiper mechanism for an industrial vehicle according to claim 1, wherein a drain guideway extending in a vertical direction is connected to the downwardly inclined end of the drain groove or the drain step portion . 3. A wiper that rotates around the upper corner of the windshield,
A drain groove or a drain step extending obliquely with respect to the horizontal direction on the outer surface of the windshield near the upper rotation limit position of the wiper and capable of collecting water on the windshield swept up by the wiper; And having
A wiper mechanism for an industrial vehicle, wherein a drain guideway extending vertically is connected to a downwardly inclined end of the drain groove or the drain step. A wiper that rotates around the upper corner of the windshield,
A wiper mechanism for an industrial vehicle, comprising: an auxiliary wiper installed on the wiper and slidable along the longitudinal direction of the wiper when the wiper is at a rotation upper limit position. A wiper that rotates around the upper corner of the windshield,
  A drain step extending inclining with respect to the horizontal direction on the outer surface of the windshield near the upper rotation limit position of the wiper and capable of collecting water on the windshield swept up by the wiper; Vehicle wiper mechanism.

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