JP3717416B2 - Wiper device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiper device for wiping a windshield glass of an automobile.
[0002]
[Prior art]
2. Description of the Related Art A vehicle wiper device that wipes windshield glass or the like of an automobile includes a wiper arm and a wiper blade that is held by the wiper arm.
[0003]
In the wiper arm, one end of the arm head is fixed to a pivot shaft, and a retainer is connected to the other end of the arm head via a support shaft so as to be rotatable by a predetermined angle. A spring is attached between the arm head and the retainer, and always urges the retainer toward a wiping surface such as a windshield glass. An arm piece is fixed to the tip of the retainer. The tip of the arm piece is a hook bent in a substantially U shape, and the wiper blade is connected and held. On the other hand, the wiper blade is configured by a blade rubber that contacts and wipes the wiping surface, and a plurality of holding levers that hold the blade rubber.
[0004]
When the vehicle wiper device is operated, the wiper arm and the wiper blade reciprocally rotate, so that the blade rubber moves while closely contacting the windshield glass surface to wipe away raindrops.
[0005]
By the way, conventionally, when the glass surface is large and the distance to the landing point of the cleaning liquid sprayed from the washer nozzle of the vehicle is long, the sprayed cleaning liquid is surely landed by the target point to be wiped off by the wiper blade. There is known a wiper device with a washer nozzle provided with a washer nozzle on a wiper arm or a wiper blade so as to eject a cleaning liquid. Further, in such a wiper device with a washer nozzle, a device in which a piping hose arrangement structure for delivering the washing liquid of the washer tank to the washer nozzle has been devised (for example, Japanese Utility Model Laid-Open No. 61-97059). ).
[0006]
In the wiper device disclosed in the above publication, a linear groove is formed on the back side of the arm head, and a piping hose for delivering the washing liquid of the washer tank to the washer nozzle is fitted in the groove. Yes. This improves the handling and appearance of the piping hose.
[0007]
However, in the piping structure of the piping hose in such a conventional wiper device with a washer nozzle, when an external force is applied or the piping hose is pulled with the rotation of the wiper arm, the piping hose is pulled along the direction of the applied force. There was a risk that the piping hose would come out (disconnect) from the groove as described above in an attempt to reach the shortest distance. In addition, in order to prevent such separation of the piping hose from the groove, it was necessary to take measures such as using a separate part such as a clip and partially pressing down the piping hose. There was a drawback that hose assembly workability was poor.
[0008]
[Problems to be solved by the invention]
In consideration of the above fact, the present invention can securely route and hold a piping hose for delivering cleaning liquid to a washer nozzle provided on a wiper arm or wiper blade without requiring any special parts. It is an object to obtain a wiper device that improves the workability of handling.
[0009]
[Means for Solving the Problems]
A wiper device according to a first aspect of the present invention includes: a wiper arm having an arm head whose one end is fixed to a pivot shaft; and a retainer pivotally supported in a wiping surface direction with respect to the arm head; A wiper blade attached to the tip of the wiper arm and wiping the wiping surface; a wiper arm or a wiper blade provided on the wiper arm; and a washer nozzle for spraying cleaning liquid onto the wiping surface; and the arm head and the retainer. In the wiper device having a piping hose connected to the washer nozzle and delivering the cleaning liquid, on the back side of the arm head, there are long grooves that are alternately continuous in the ridges and valleys and bent in a wave shape as a whole. provided along the long groove, the long groove width direction located on the widthwise one side and the other side of the long groove of said ridges In the adjacent ridges, there is a protrusion protruding in a bowl shape from the top of one ridge toward the groove opening where the piping hose is fitted, and one of the ridges in the opposite direction The interval T between the top of the peak and the top of the other peak is set to be narrower than the diameter of the piping hose, and the piping hose is fitted and held in the long groove. It is said.
[0010]
In the vehicle wiper device according to the first aspect, the piping hose is fitted and held in a long groove provided on the back surface side of the arm head.
[0011]
Here, when the piping hose fitted in the long groove is pulled, the piping hose tends to have the shortest distance along the direction of the applied force, but the long groove has at least one peak and valley. Since the sets are formed alternately and bent in a wavy shape as a whole, the pulled pipe hose is pressed by the crest (the side wall) of the long groove and held by the frictional force between the side walls This prevents the pipe hose from coming out (disconnecting) from the long groove. In this case, the stronger the force (tensile force) acting on the piping hose, the greater the hose holding force due to the frictional force. Therefore, the external force acts on the piping hose or the piping hose is moved along with the rotation of the wiper arm. Even if pulled, the piping hose can be securely held in the long groove, and stable wiring can be performed.
[0012]
For this reason, separate parts such as a clip for preventing the piping hose from being detached from the groove become unnecessary, and the number of parts does not increase and the workability of assembling the piping hose does not deteriorate.
[0013]
Thus, in the vehicle wiper device according to the first aspect, the piping hose for delivering the cleaning liquid to the washer nozzle provided on the wiper arm or the wiper blade is securely routed and held without requiring any special parts. This also improves the workability of hose handling. In addition, in the long groove in which the crests and troughs are alternately continuous and bent in a wavy shape as a whole, the crests are located on one side and the other side in the width direction, facing each other in the width direction of the long groove and adjacent to each other. Exists. Here, in the vehicle wiper device, the distance between the top of one peak and the top of the other peak in the facing direction (long groove width direction) in the adjacent peak portions facing each other in the long groove width direction. T is set narrower than the diameter of the piping hose. For this reason, the piping hose fitted in the long groove inevitably engages with the peak portion and is held in a wave-like bent state, thereby preventing displacement in the longitudinal direction. Further, in a cross-sectional view in a direction perpendicular to the longitudinal direction of the arm head (that is, the width direction of the long groove), the groove shape is L-shaped because of the protruding portion protruding in a bowl shape at the peak portion of the long groove. For this reason, by fitting the piping hose into the L-shaped interior (recessed portion), the protruding portion acts to press the piping hose, and the piping hose can be further prevented from coming out of the long groove. In particular, depending on the tensile force acting on the piping hose along the longitudinal direction of the arm head, the piping hose is further deeply fitted into the L-shaped interior (recess), and the piping hose is more securely held in the long groove. be able to.
[0014]
According to a second aspect of the present invention, there is provided a wiper device comprising: an arm head having one end fixed to a pivot shaft; and a retainer pivotally supported in a wiping surface direction with respect to the arm head; A wiper blade attached to the tip of the wiper arm and wiping the wiping surface; a wiper arm or a wiper blade provided on the wiper arm; and a washer nozzle for spraying cleaning liquid onto the wiping surface; and the arm head and the retainer. In the wiper device having a piping hose connected to the washer nozzle and delivering the cleaning liquid, on the back side of the arm head, there are long grooves that are alternately continuous in the ridges and valleys and bent in a wave shape as a whole. The long groove is bowl-shaped toward the groove opening portion into which the pipe hose is fitted at the peak portion. The protrusion has a protruding part, and in the depth direction of the long groove, the height dimension of the protruding part is set to be relatively lower than the height dimension of the valley part facing the protruding part, The piping hose is characterized by being fitted and held in the long groove .
[0015]
In the vehicle wiper device according to the second aspect, the pipe hose is fitted and held in a long groove provided on the back side of the arm head. Here, when the piping hose fitted in the long groove is pulled, the piping hose tends to have the shortest distance along the direction of the applied force, but the long groove has at least one peak and valley. Since the sets are formed alternately and bent in a wavy shape as a whole, the pulled pipe hose is pressed by the crest (the side wall) of the long groove and held by the frictional force between the side walls This prevents the pipe hose from coming out (disconnecting) from the long groove. In this case, the stronger the force (tensile force) acting on the piping hose, the greater the hose holding force due to the frictional force. Therefore, the external force acts on the piping hose or the piping hose is moved along with the rotation of the wiper arm. Even if pulled, the piping hose can be securely held in the long groove, and stable wiring can be performed. For this reason, separate parts such as a clip for preventing the piping hose from being detached from the groove become unnecessary, and the number of parts does not increase and the workability of assembling the piping hose does not deteriorate. Thus, in the vehicle wiper device according to claim 2, the piping hose for delivering the cleaning liquid to the washer nozzle provided on the wiper arm or the wiper blade is securely routed and held without requiring any special parts. This also improves the workability of hose handling. Further, in a cross-sectional view in the direction orthogonal to the longitudinal direction of the arm head (that is, the width direction of the long groove), the groove shape is L-shaped because of the protruding portion protruding in a bowl shape at the peak portion of the long groove. For this reason, by fitting the piping hose into the L-shaped interior (recessed portion), the protruding portion acts to press the piping hose, and the piping hose can be further prevented from coming out of the long groove. In particular, depending on the tensile force acting on the piping hose along the longitudinal direction of the arm head, the piping hose is further deeply fitted into the L-shaped interior (recess), and the piping hose is more securely held in the long groove. be able to. Furthermore, since the long groove is formed on the wiping surface side of the arm head, there is a case where ice and snow accumulated and frozen between the vehicle body and the arm head collide with the wiper arm that reciprocally rotates. Here, since the protruding portion that protrudes like a bowl toward the groove opening portion is formed to be relatively thin, there is a risk of damage if the ice and snow collide with the protruding portion as it is. In this respect, in this wiper device, the height dimension of the protrusion is set to be relatively lower than the height dimension of the valley facing the protrusion in the depth direction of the long groove. It is avoided that ice and snow such as
[0016]
A wiper device according to a third aspect of the present invention is the wiper device according to the second aspect, wherein the wiper device is located on one side and the other side in the width direction of the long groove and is opposed to the long groove width direction. In the adjacent and adjacent peak portions, the interval T between the top of one peak and the top of the other peak in the opposite direction is set to be narrower than the diameter of the pipe hose . .
[0017]
In a long groove where ridges and valleys are alternately continuous and bent in a wavy shape as a whole, they are located on one side and the other side in the width direction and face each other in the width direction of the long groove, and there are peaks next to each other. To do. Here, in the vehicle wiper device according to claim 3, the peak portions of one peak portion and the other peak portion in the opposing direction (long groove width direction) are adjacent to each other and adjacent to each other in the long groove width direction. The interval T between the tops is set narrower than the diameter of the piping hose. For this reason, the piping hose fitted in the long groove inevitably engages with the peak portion and is held in a wave-like bent state, thereby preventing displacement in the longitudinal direction.
[0018]
Wiper apparatus of the invention according to claim 4 is the wiper apparatus according to claim 1 or claim 3 Symbol placement, the distance T is 0 or less, it is characterized in that.
[0019]
In the vehicle wiper device according to the fourth aspect, the piping hose fitted in the long groove is bent and held in a more curved and wavy shape by the mountain portion, so that it is stronger even if a tensile force acts on the piping hose. Retained.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a back view showing the configuration of a wiper device 10 according to an embodiment of the present invention.
[0023]
The wiper device 10 includes a wiper arm 11 and a wiper blade. In addition, since the thing of a general structure is applied about a wiper blade, detailed description is abbreviate | omitted.
[0024]
The wiper arm 11 includes an arm head 12 and a retainer 14. One end of the arm head 12 is fixed to a pivot shaft (not shown) as a pivot shaft provided on the vehicle body, and always rotates together with the pivot shaft. As shown in detail in FIG. 2, a skirt portion 16 surrounding the periphery of the pivot shaft is formed at one end on the back surface side of the arm head 12. In addition, a long groove 18 is formed in the central portion on the back surface side of the arm head 12 along the longitudinal direction. Here, FIG. 2 shows details of the long groove 18 provided on the back surface side of the arm head 12. This long groove 18 is provided with mountain portions 20A, 20B, and 20C and valley portions 26A, 26B, and 26C that are alternately continuous and bent in a wave shape as a whole. .
[0025]
Here, FIG. 3 schematically shows the shape characteristics of the long groove 18. As shown in FIG. 3, among the crests 20A, 20B, and 20C of the long groove 18, for example, they are located on one side and the other side in the width direction of the long groove 18 and face each other in the width direction of the long groove 18 and are adjacent to each other. In the ridge 20A and the ridge 20B that match each other, the interval T between the top of one ridge 20A and the top of the other ridge 20B in the opposing direction (width direction of the long groove 18) is larger than the diameter φ of the piping hose 46. It is set narrowly.
[0026]
Further, as shown in FIG. 5, the long groove 18 has a protruding portion 38 that protrudes in a bowl shape toward the groove opening portion into which the pipe hose 46 is fitted in the peak portion 20 </ b> A. Similarly, the peak portion 20C also has a protruding portion 40 that protrudes in a bowl shape toward the groove opening portion into which the pipe hose 46 is fitted.
[0027]
Furthermore, as shown in FIGS. 4 and 5, in the long groove 18 in the depth direction (Fig. 5 left-right direction), a height dimension L _D of the protrusion 38, the height of the valley portion 26A which faces the projection 38 equal to L _E, is set relatively lower than more preferably height L _D is height L _E. Note that the same dimension setting is made for the protrusion 40 as well.
[0028]
The retainer 14 is connected to the other end of the arm head 12 having the above-described configuration via a support shaft so as to be rotatable by a predetermined angle in a direction approaching and separating from the windshield glass. The retainer 14 has a pair of side walls 22 and an upper wall 24 and is formed in a U-shaped cross section whose back side is open downward (in the direction of the wiping surface).
[0029]
Further, a spring 30 is stretched between the retainer 14 and the arm head 12. The spring 30 is a so-called tension coil spring, and its coil portion is disposed within the U-shaped cross section of the retainer 14 and always urges the retainer 14 toward the wiping surface of the windshield glass.
[0030]
Further, an arm piece 32 that constitutes the wiper arm 11 together with the retainer 14 is fixed to the distal end portion of the retainer 14. The distal end of the arm piece 32 is bent into a substantially U shape to form a hook (not shown), and the wiper blade is connected and held via a clip member (not shown).
[0031]
Furthermore, the wiper arm 11 having the above-described configuration is provided with an intermediate washer nozzle 34 and a tip washer nozzle 36. The intermediate washer nozzle 34 is disposed between the pair of side walls 22 in the retainer 14 at the intermediate portion in the longitudinal direction of the retainer 14, and is configured to be non-rotatable with respect to the retainer 14. On the other hand, the front end washer nozzle 36 is disposed between the pair of side walls 22 inside the retainer 14 at the front end in the longitudinal direction of the retainer 14 and is configured to be held so as not to rotate with respect to the retainer 14.
[0032]
One end of a piping hose 46 is connected to the intermediate washer nozzle 34 having the above configuration. This piping hose 46 is connected to a washer tank (not shown) provided in the vehicle body via a washer pump, and is pulled out of the vehicle body from a hose outlet of the vehicle body provided in the vicinity of the pivot shaft. Furthermore, it is introduced into the back surface side of the arm head 12, fitted and held in the above-described long groove 18, and further disposed along the inner side of the side wall 22. Further, the pipe hose 46 disposed along the inner side of the side wall 22 is configured to pass through the coil portion of the spring 30 described above, be led out to the distal end side of the retainer 14, and be connected to the intermediate washer nozzle 34. Further, one end of an auxiliary hose 52 is connected to the intermediate washer nozzle 34, and the other end of the auxiliary hose 52 is connected to the tip washer nozzle 36. Thus, the cleaning liquid can be delivered to the intermediate washer nozzle 34 via the piping hose 46, and the cleaning liquid can be delivered to the tip washer nozzle 36 via the auxiliary hose 52.
[0033]
Next, the operation of this embodiment will be described.
[0034]
In the wiper device 10 configured as described above, the wiper arm 11 reciprocates as the pivot shaft rotates, so that the wiper blade reciprocates and wipes raindrops and the like on the windshield glass surface.
[0035]
Here, in the wiper device 10, since the intermediate washer nozzle 34 and the tip washer nozzle 36 are integrally provided on the wiper arm 11, even if the wiper blade wiping range is large, the intermediate washer nozzle 34 and the tip washer nozzle 36 are separated from each other. The sprayed cleaning liquid can surely land on the target point wiped by the wiper blade.
[0036]
Further, in the wiper device 10, the piping hose 46 for supplying the cleaning liquid is fitted and held in the long groove 18 provided on the back surface side of the arm head 12.
[0037]
Here, when the pipe hose 46 fitted in the long groove 18 is pulled, the pipe hose 46 tends to become the shortest distance along the direction of the applied force. 20B, 20C and troughs 26A, 26B, 26C are alternately and continuously bent to form a wave shape, so that the pulled pipe hose 46 has the peaks 20A, 20B, 20C of the long groove 18 (the side walls thereof). The pipe hose 46 is prevented from being pulled out (disengaged) from the long groove 18 by being pressed by the portion) and held by the frictional force with the side wall portion. In this case, the stronger the force (pulling force) acting on the piping hose 46 is, the larger the hose holding force due to the frictional force is. Therefore, an external force acts on the piping hose 46 or the wiper arm 11 rotates. Even if the pipe hose 46 is pulled, the pipe hose 46 can be reliably held in the long groove 18 and stable wiring can be performed.
[0038]
In addition, in the long groove 18 provided in the arm head 12 as described above, for example, the long groove 18 is located on one side and the other side in the width direction and faces each other in the width direction of the long groove 18 and is adjacent to the mountain portion. There are 20A and a mountain 20B. Moreover, in this peak 20A and peak 20B, the distance T between the peak of one peak 20A and the peak of the other peak 20B in the opposing direction (width direction of the long groove 18) is larger than the diameter of the piping hose 46. Is set too narrow. For this reason, the piping hose 46 fitted in the long groove 18 is necessarily held in a state of being bent in a wave shape by engaging with the ridges 20A and ridges 20B (side wall portions thereof). I can search.
[0039]
Furthermore, the long groove 18 has a protrusion 38 that protrudes in a bowl shape toward the groove opening where the pipe hose 46 is fitted in the peak 20A, and the pipe hose 46 is also fitted in the peak 20C. Since the projection 40 protrudes in a bowl shape toward the groove opening, the cross-sectional view in the direction perpendicular to the longitudinal direction of the arm head 12 (that is, the width direction of the long groove 18) is shown in FIG. Thus, in the peak portion 20A of the long groove 18, the groove shape is L-shaped because of the protruding portion 38 protruding like a bowl. Similarly to this, the groove shape is L-shaped because of the protrusion 40 projecting like a bowl in the peak portion 20 </ b> C of the long groove 18. For this reason, by fitting the piping hose 46 into the L-shaped interior (concave portion), the projection 38 or the projection 40 presses the piping hose 46, and the piping hose 46 from the long groove 18 due to vibration or the like The escape can be further prevented. In particular, depending on the tensile force acting on the pipe hose 46 along the longitudinal direction of the arm head 12, the pipe hose 46 is further deeply fitted into the L-shaped inside (recess), and the pipe hose 46 is inserted into the long groove 18. It can hold more reliably.
[0040]
For this reason, another part such as a clip that has been conventionally used to prevent the piping hose 46 from being detached from the groove becomes unnecessary, and the number of parts increases or the assembling workability of the piping hose 46 deteriorates. There is nothing.
[0041]
Furthermore, in the arm head 12 provided with the long groove 18 as described above, the height dimension L _D of the protrusion 38 in the depth direction of the long groove 18 is the height dimension of the trough 26A facing the protrusion 38. L is set relatively lower than _E, also made the same dimensioning and also the projections 40. Here, as shown in FIG. 6, ice / snow X accumulated and frozen between the vehicle body and the arm head 12 may collide with the wiper arm 11 that reciprocally rotates. Here, since the protrusion 38 and the protrusion 40 protruding in a bowl shape toward the groove opening portion are formed to be relatively thin, the ice and snow X collide with the protrusion 38 and the protrusion 40 as they are. There is a fear. In this regard, the arm head 12 of the wiper apparatus 10 of the present embodiment, the height dimension L _D of the protrusion 38 as described above is equal to than the height L _E valleys 26A which faces the projection 38 Alternatively, it is set low, and the projection 40 has the same size setting, so that it is avoided that the ice and snow as described above collide with the projection 38 and the projection 40 as they are.
[0042]
As described above, in the wiper device 10 according to the present embodiment, the piping hose 46 for delivering the cleaning liquid to the intermediate washer nozzle 34 and the tip washer nozzle 36 provided in the wiper arm 11 is not required to have a special part. It can be securely routed and held, and the workability of hose handling is improved.
[0043]
In the embodiment described above, in the crest 20A and crest 20B of the long groove 18, the distance between the top of one crest 20A and the top of the other crest 20B in the opposing direction (width direction of the long groove 18). Although T is set to be narrower than the diameter of the piping hose 46, the present invention is not limited to this, and the interval T is set to 0 or less. That is, the peak portion 20A and the peak portion 20B are opposed to each other (long groove). You may comprise so-called overlap in 18 width direction. In this case, the piping hose 46 fitted into the long groove 18 is held in a state where it is strongly engaged and bent in a stronger wave shape by the peak portion 20A or the peak portion 20B. It can be held securely.
[0044]
In the above-described embodiment, the height L _D of the protrusion 38 is set to be lower than the height L _E of the valley 26A facing the protrusion 38. In addition to this, Then, as shown in FIG. 7, a tapered chamfered portion 42 may be formed on the protruding portion 38. In this case, it becomes difficult for ice and snow to be caught on the protrusion 38, which is more effective in preventing damage to the protrusion 38.
[0045]
Further, at least one set of peaks and valleys may be formed continuously, and a plurality of sets may be formed according to the length of the arm head 12.
[Brief description of the drawings]
FIG. 1 is a back view showing a configuration of a wiper device according to an embodiment of the present invention.
FIG. 2 is a back view showing the configuration of the arm head of the wiper device according to the embodiment of the present invention.
FIG. 3 is a schematic view corresponding to FIG. 2 showing the configuration of the long groove of the arm head of the wiper device according to the embodiment of the present invention.
4 is a cross-sectional view taken along line 4-4 of FIG. 3 showing the configuration of the long groove of the arm head of the wiper device according to the embodiment of the present invention.
5 is a cross-sectional view taken along line 5-5 in FIG. 3, showing the configuration of the long groove of the arm head of the wiper device according to the embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a correspondence relationship between the protrusion of the arm head of the wiper device according to the embodiment of the present invention and ice and snow that have accumulated and frozen.
7 is a cross-sectional view corresponding to FIG. 5, showing another example of the protrusion of the arm head of the wiper device according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Wiper arm 12 Arm head 14 Retainer 18 Long groove 20A Mountain part 20B Mountain part 20C Mountain part 22 Side wall 24 Upper wall 26A Valley part 26B Valley part 26C Valley part 34 Intermediate washer nozzle 36 Tip washer nozzle 38 Projection part 40 Projection part 46 Piping hose

Claims (4)

A wiper arm having an arm head, one end of which is fixed to the pivot shaft, and a retainer pivotally supported in the wiping surface direction with respect to the arm head;
A wiper blade attached to the tip of the wiper arm and wiping the wiping surface;
A washer nozzle provided on the wiper arm or wiper blade, for jetting the cleaning liquid to the wiping surface;
A piping hose disposed along the arm head and the retainer and connected to the washer nozzle to deliver a cleaning liquid;
In a wiper device comprising
On the back side of the arm head, a long groove is provided along the longitudinal direction, in which crests and troughs are alternately and continuously bent in a wavy shape,
The long grooves are located on one side and the other side in the width direction of the long grooves and face each other in the width direction of the long grooves, and in the adjacent mountain parts, the pipes are connected from the top of one peak part. A protrusion projecting like a bowl toward the groove opening portion into which the hose is fitted, and the interval T between the top of one peak and the top of the other peak in the facing direction is It is set narrower than the diameter,
The piping hose is fitted and held in the long groove,
A wiper device characterized by that. A wiper arm having an arm head, one end of which is fixed to the pivot shaft, and a retainer pivotally supported in the wiping surface direction with respect to the arm head;
A wiper blade attached to the tip of the wiper arm and wiping the wiping surface;
A washer nozzle provided on the wiper arm or wiper blade, for jetting the cleaning liquid to the wiping surface;
A piping hose disposed along the arm head and the retainer and connected to the washer nozzle to deliver a cleaning liquid;
In a wiper device comprising
On the back side of the arm head, a long groove is provided along the longitudinal direction, in which crests and troughs are alternately and continuously bent in a wavy shape,
The long groove has a protrusion that protrudes in a bowl shape toward the groove opening portion in which the pipe hose is fitted in the mountain portion, and the height dimension of the protrusion in the depth direction of the long groove is the protrusion Is set relatively lower than the height of the valley facing the part,
The piping hose is fitted and held in the long groove,
A wiper device characterized by that. Among the crests of the long grooves, the crests located on one side and the other side in the width direction of the long grooves are opposed to each other in the width direction of the long groove and are adjacent to each other. The interval T at the top of the other peak is set narrower than the diameter of the piping hose.
The wiper device according to claim 2. The distance T is 0 or less, according to claim 1 or claim 3 Symbol mounting of the wiper device, characterized in that.

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