JP2006007971A - Wiper device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiper device capable of enhancing routing work efficiency of a piping hose for delivering a washing liquid and freedom of handling of the piping hose, making an arm head to a common part for right hand drive specification and left hand drive specification and enhancing appearance. <P>SOLUTION: The wiper device 10 is constituted such that a storage part 26 is provided at a back surface side of an arm head along a longitudinal direction and a part of the storage part 26 is covered by attaching a clamp cover 42 to the arm head 12 (attachment part 38). Further, the piping hose 46 for feeding the washing liquid is arranged in the storage part 26 of the arm head in the state that it is directly retained by a retaining claw 54 of the clamp cover 42. Thereby, the piping hose 46 can be arranged/retained along the arm head 12 (storage part 26) by merely attaching the clamp cover 42 retained with the piping hose 46 by the retaining claw 54 to the arm head 12 (attachment part 38). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wiper device for wiping a windshield glass of an automobile.

  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.

  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.

  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.

  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. A wiper device with a washer nozzle is known in which a washer nozzle is provided on a wiper arm or a wiper blade so as to eject a cleaning liquid (see Patent Document 1 as an example).

  In such a wiper device with a washer nozzle, a piping hose for delivering cleaning liquid to the washer nozzle is led out from the vehicle body near the pivot shaft, and a wiring hole is formed along the outer side wall of the arm head. By inserting the piping hose, the piping hose is guided and connected to the washer nozzle. As a result, the design of the wiper arm and the weather resistance of the piping hose are improved.

  However, in such a piping hose routing structure in a wiper device with a conventional washer nozzle, the piping hose must be passed through a long and narrow routing hole formed along the outer side wall of the arm head. There was a drawback that hose assembly workability was poor.

  In particular, since it has a structure in which a wiring hole is formed on one side wall on the outside of the arm head, for example, in an automobile of the same vehicle type, an attempt is made to use the arm head in common with the right handle specification and the left handle specification. Then (when the piping hose lead-out position is set to be the same), the piping hose is positioned on the opposite side of the arm head in the right handle specification and the left handle specification, even though it is the same vehicle type. For this reason, not only does the appearance of the wiper device change, but in the case of the right handle specification, for example, the piping hose is loosened at the upper inversion position, whereas in the case of the left handle specification, the piping hose must be loosened in the lower inversion position. For this reason, the way of assembling the piping hose is different between the right handle specification and the left handle specification, and the workability is extremely deteriorated.

In this case, in order to eliminate the problems as described above, prepare separate arm heads for the right handle specification and the left handle specification (the positions of the routing holes are set differently). This is disadvantageous for the common use of parts and causes a high cost.
Japanese Utility Model Laid-Open No. 5-16521

  In consideration of the above facts, the present invention improves the workability of the piping hose for delivering the cleaning liquid to the washer nozzle provided on the wiper arm or the wiper blade and the degree of freedom of the piping hose, and the arm head. It is an object to obtain a wiper device that can be used as a common part for the right handle specification and the left handle specification, and that improves the appearance.

  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; a washer nozzle for jetting cleaning liquid to the wiping surface; and the arm head and the retainer. And a pipe hose connected to the washer nozzle for delivering the cleaning liquid, and a receiving portion that is provided in a concave shape along the longitudinal direction on the back surface side of the arm head that faces the wiping surface, and stores the pipe hose. And is attached to the back side of the arm head and covers at least a part of the housing portion. It is characterized by comprising, a clamp cover for wiring holding the hose in the receptacle.

  In the vehicle wiper device according to the first aspect, the accommodating portion is provided on the back side of the arm head, and at least a part of the accommodating portion is covered by attaching the clamp cover to the arm head. The piping hose is clamped and held between the housing portion (the inner peripheral wall thereof) and the clamp cover, or held by the clamp cover itself, and is routed along the longitudinal direction on the back side of the arm head.

  In this way, the piping hose can be routed and held along the arm head simply by attaching the clamp cover to the arm head (in other words, a special routing hole on either side wall of the arm head). This is not a configuration in which the piping hose is routed by forming the piping hose), and the assembling workability of the piping hose is greatly improved. In addition, since the piping hose is routed along the longitudinal direction on the back side of the arm head (in other words, because the piping hose is not configured to be located outside the side wall of the arm head, that is, the piping hose) Therefore, the piping hose is not positioned on the opposite side between the arm head of the right handle specification and the arm head of the left handle specification. For this reason, the arm head can be a common part for the right handle specification and the left handle specification, and the pipe hose assembly work method (setting the slack length, etc.) for each of the right handle specification and the left handle specification. ) Are not different (work is shared), and this also improves workability. For this reason, when the piping hose is led out from the vehicle body near the pivot shaft, it can be freely selected from which side of the arm head the piping hose is routed. Furthermore, since the piping hose is routed along the longitudinal direction on the back surface side (inside the accommodating portion) of the arm head, it looks good.

  As described above, in the wiper device according to the first aspect, the piping hose routing workability for delivering the cleaning liquid to the washer nozzle provided on the wiper arm or the wiper blade and the degree of freedom of the piping hose handling are improved. At the same time, the arm head can be a common part for the right handle specification and the left handle specification, and the appearance is improved.

  A wiper device according to a second aspect of the present invention is the wiper device according to the first aspect, wherein a holding claw for directly holding the piping hose is formed on the inner surface side of the clamp cover. .

  In the vehicle wiper device according to the second aspect, the piping hose is directly held by the holding claws formed on the inner surface side of the clamp cover. For this reason, after holding the piping hose with the clamp cover (holding claw), simply attaching the clamp cover from the back side of the arm head allows the piping hose to be routed and held along the arm head, and assembled. The workability is improved and the holding of the piping hose is ensured.

  The wiper device according to a third aspect of the present invention is the wiper device according to the first aspect, wherein the arm head includes a partition wall that divides the housing portion into one side and the other side in the arm head width direction. The piping hose is formed and held between the partition wall and the clamp cover.

  In the vehicle wiper device according to the third aspect, the piping hose is sandwiched and held by the partition wall formed in the arm head and the clamp cover. For this reason, the piping hose can be routed and held along the arm head simply by attaching the clamp cover to the arm head, so that the assembly workability is improved and the piping hose is also securely held. Moreover, the freedom degree (freedom of selection) of the piping hose can also be ensured.

  FIG. 1 is a rear view showing the configuration of the wiper device 10 according to the first embodiment of the present invention. 2 is a perspective view showing the configuration of the main part of the wiper device 10, and FIG. 3 is a cross-sectional view of the configuration of the main part of the wiper device 10 taken along line 3-3 in FIG. Is shown.

  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.

  The wiper arm 11 includes an arm head 12 and a retainer 14. The arm head 12 has a pair of side walls 18 and an upper wall 20, and the back side thereof is formed in a U-shaped cross section that opens downward (in the direction of the wiping surface), and one end thereof is provided on the vehicle body. It is fixed to a pivot shaft (not shown) as a rotating shaft, and always rotates together with the pivot shaft. 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. Further, a concave accommodating portion 26 is provided along the longitudinal direction on the back surface side of the arm head 12 and is used for routing a piping hose 46 described later. Further, a mounting portion 38 and a claw receiving portion 40 are formed on a part of the side wall 18 and the upper wall 20 of the arm head 12.

  A clamp cover 42 is mounted on the back side of the arm head 12. The clamp cover 42 is formed in a U-shaped cross section as a whole by a pair of opposing side walls 44 and a bottom wall 48, and a locking claw 50 is formed at the tip of each side wall 44. The clamp cover 42 is mounted on the mounting portion 38 from the back side of the arm head 12 and the locking claw 50 is locked (fitted) to the claw receiving portion 40 of the arm head 12. Is configured to be attached to the arm head 12. In a state where the clamp cover 42 is attached to the arm head 12, a part of the accommodating portion 26 provided on the back side of the arm head 12 is covered.

  The bottom wall 48 of the clamp cover 42 is formed with a holding claw 54 that directly holds the piping hose 46 on the inner surface side thereof. In other words, the clamp hose 46 is attached to the arm head 12 while the pipe hose 46 is held by the holding claws 54, so that the pipe hose 46 is routed and held in the housing portion 26 of the arm head 12. Yes.

  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).

  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.

  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).

  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.

  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, held by the holding claw 54 of the clamp cover 42 described above, and routed in the accommodating portion 26. Further, the piping hose 46 routed along the accommodating portion 26 of the arm head 12 passes through the coil portion of the spring 30 described above, is led out to the distal end side of the retainer 14, and is connected to the intermediate washer nozzle 34. It has become. 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.

  Next, the operation of the first embodiment will be described.

  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. Moreover, 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 wiping range of the wiper blade 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.

  Further, here, in the wiper device 10, an accommodation portion 26 is provided along the longitudinal direction on the back surface side of the arm head 12, and the clamp cover 42 is accommodated by being attached to the arm head 12 (attachment portion 38). A part of the portion 26 is covered. Further, the piping hose 46 for supplying the cleaning liquid is routed in the accommodating portion 26 of the arm head 12 while being directly held by the holding claws 54 of the clamp cover 42.

  Thus, the piping hose 46 is held along the arm head 12 (accommodating portion 26) by simply mounting the clamp cover 42 holding the piping hose 46 with the holding claws 54 on the arm head 12 (mounting portion 38). (In other words, because it is not a configuration in which a special wiring hole or the like is formed in any one of the side walls 18 of the arm head 12 and the piping hose 46 is inserted), the piping Assembling workability of the hose 46 is greatly improved, and the piping hose 46 can be securely held.

  Further, since the piping hose 46 is routed along the longitudinal direction on the back surface side (accommodating portion 26) of the arm head 12 (in other words, a part of the piping hose 46 is located outside the side wall 18 of the arm head 12). Therefore, the piping hose 46 is not configured to be set to one of the side walls 18), so the piping hose 46 has the right handle specification arm head 12 and the left handle specification arm head 12. And are not located on opposite sides of each other. For this reason, the arm head 12 can be a common part for the right handle specification and the left handle specification, and the way of assembling the piping hose 46 for each of the right handle specification and the left handle specification (the slack length) (Setting etc.) is not different (work is shared), and this also improves workability.

  For this reason, when the piping hose 46 is led out from the vehicle body near the pivot shaft, it can be freely selected from which side of the arm head 12 the piping hose 46 is routed. Furthermore, since the piping hose 46 is routed along the longitudinal direction on the back side of the arm head 12 (inside the accommodating portion 26), it looks good.

  As described above, in the wiper device 10 according to the first embodiment, the workability of the piping hose 46 for delivering the cleaning liquid to the washer nozzle provided in the wiper arm 11 and the routing of the piping hose 46 are described. In addition, the arm head 12 can be a common part for the right handle specification and the left handle specification, and the appearance is also improved.

  Next, another embodiment of the present invention will be described.

  Note that components that are basically the same as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

FIG. 4 is a perspective view corresponding to FIG. 2 showing the configuration of the main part of the wiper device 60 according to the second embodiment. 5 shows the configuration of the main part of the wiper device 60 in a cross-sectional view corresponding to FIG. 3. The wiper device 60 is basically the wiper device 10 according to the first embodiment. However, a mounting portion 62 and a claw receiving portion 64 are formed on the side wall 18 of the arm head 12. That is, the claw receiving portion 64 is configured not on the upper wall 20 but on the side wall 18. In the wiper device 60, a clamp cover 66 is attached to the arm head 12 instead of the clamp cover 42. The clamp cover 66 has a locking claw 68 formed at the tip of each side wall 44, and is fitted to a claw receiving portion 64 formed on the side wall 18.

  The wiper device 60 according to the second embodiment also has the same operational effects as the wiper device 10 according to the first embodiment described above.

Next, in FIG. 6, the configuration of the main part of the wiper device 70 according to the third embodiment is shown in a cross-sectional view corresponding to FIG. 3. The wiper device 70 basically includes the first device. Although the configuration is the same as that of the wiper device 10 according to the embodiment, a clamp cover 72 is attached to the arm head 12 instead of the clamp cover 42. The clamp cover 72 has a configuration in which the holding claw 54 is omitted.

  On the other hand, the arm head 12 is formed with a partition wall 74 protruding from the back surface side (the accommodating portion 26 side) of the upper wall 20. The dividing wall 74 divides the accommodating portion 26 into one side and the other side in the width direction of the arm head 12. Further, the piping hose 46 is sandwiched and held between the partition wall 74 and the clamp cover 72.

  The wiper device 70 according to the third embodiment has basically the same functions and effects as the wiper device 10 according to the first embodiment described above.

  In particular, since the piping hose 46 is sandwiched and held by the partition wall 74 formed on the arm head 12 and the clamp cover 72, the piping hose 46 is simply attached to the arm head 12 by attaching the piping hose 46 to the arm head 12. 12, the assembly workability is improved, and the piping hose 46 can be securely held. Moreover, the freedom degree (freedom of selection) of the piping hose 46 can also be ensured.

  Next, FIG. 7 is a perspective view showing the configuration of the main part of the wiper device 80 according to the fourth embodiment. Further, FIG. 8 shows a configuration of a main part of the wiper device 80 in a sectional view corresponding to FIG.

  The wiper device 80 has basically the same configuration as the wiper device 10 according to the first embodiment, but a clamp cover 82 is attached to the arm head 12 instead of the clamp cover 42. The clamp cover 82 has a configuration in which a support pin 84 is protruded from a pair of side walls 44.

  On the other hand, in the arm head 12, the mounting portion 38 and the claw receiving portion 40 provided on a part of the side wall 18 and the upper wall 20 in the first embodiment are omitted, and the side wall 18 further includes a support hole 86. Is formed. By inserting the support pins 84 of the clamp cover 82 into the support holes 86, the clamp cover 82 is attached to the arm head 12.

  The wiper device 80 according to the fourth embodiment also has basically the same effects as the wiper device 10 according to the first embodiment described above.

  In the fourth embodiment, the clamp cover 82 configured to be mounted on the arm head 12 by holding the piping hose 46 by the holding claws 54 and fitting the support pins 84 into the support holes 86 has been described. However, the configuration (mode) for holding the piping hose 46 is not limited to this.

  For example, like the clamp cover 83 shown in FIG. 9A, a thin plate-like holding section 85 having a water droplet cross section is provided at the center thereof, and a locking claw 87 is formed instead of the support pin 84. It is good also as a structure. Also in this clamp cover 83, by holding the piping hose 46 by the holding portion 85, the same operational effects as the clamp cover 82 according to the fourth embodiment are obtained. Further, as shown in FIG. 10, like the clamp cover 88, a holding portion 89 that is curved and formed in a thin plate shape may be provided at the center portion thereof.

  Note that the support hole 86 formed in the side wall 18 of the arm head 12 is not limited to a so-called through-hole, and may be configured as a concave support hole 91 as shown in FIG. 9B.

  Next, FIG. 11 shows a cross-sectional view corresponding to FIG. 3 (FIG. 8) of the configuration of the main part of the wiper device 90 according to the fifth embodiment.

  The wiper device 90 has basically the same configuration as the wiper device 80 according to the fourth embodiment, but a clamp cover 92 is attached to the arm head 12 instead of the clamp cover 82. The clamp cover 92 has a configuration in which the holding claw 54 is omitted.

  On the other hand, the arm head 12 is formed with a partition wall 74 protruding from the back surface side (the accommodating portion 26 side) of the upper wall 20. The dividing wall 74 divides the accommodating portion 26 into one side and the other side in the width direction of the arm head 12. Further, the piping hose 46 is configured to be held and held between the partition wall 74 and the clamp cover 92.

  The wiper device 90 according to the fifth embodiment has basically the same effects as the wiper device 80 according to the fourth embodiment described above.

  Next, FIG. 12 is a perspective view showing the configuration of the main part of the wiper device 100 according to the sixth embodiment. FIG. 13 is a cross-sectional view corresponding to FIG. 3 showing the configuration of the main part of the wiper device 100.

  The wiper apparatus 100 has basically the same configuration as the wiper apparatus according to each of the embodiments described above, but a clamp cover 102 is attached to the arm head 12 instead of the clamp cover 42 and the like. The clamp cover 102 is formed in a T shape in a side view as a whole by the bottom plate portion 104 and the tube portion 106.

  On the other hand, on the arm head 12, a support projection 108 is formed to protrude on the back surface side (the accommodating portion 26 side) of the upper wall 20. The support protrusion 108 is fitted into the cylindrical portion 106 of the clamp cover 102 so that the clamp cover 102 is attached to the arm head 12.

  The wiper device 100 according to the sixth embodiment also has the same functions and effects as those of the previous embodiments.

  In particular, when the pipe hose 46 is welded to the cylindrical portion 106 of the clamp cover 102, not only the pipe hose 46 can be securely fixed, but also the wear of the pipe hose 46 can be prevented, which is more effective. It is.

It is a reverse view which shows the structure of the wiper apparatus which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the structure of the principal part of the wiper apparatus which concerns on the 1st Embodiment of this invention. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 1 showing the configuration of the main part of the wiper device according to the first embodiment of the present invention. It is a perspective view corresponding to FIG. 2 which shows the structure of the principal part of the wiper apparatus which concerns on the 2nd Embodiment of this invention. It is sectional drawing corresponding to FIG. 3 which shows the structure of the principal part of the wiper apparatus which concerns on the 2nd Embodiment of this invention. It is sectional drawing corresponding to FIG. 3 which shows the structure of the principal part of the wiper apparatus which concerns on the 3rd Embodiment of this invention. It is a perspective view corresponding to FIG. 2 which shows the structure of the principal part of the wiper apparatus which concerns on the 4th Embodiment of this invention. It is sectional drawing corresponding to FIG. 3 which shows the structure of the principal part of the wiper apparatus which concerns on the 4th Embodiment of this invention. It is sectional drawing corresponding to FIG. 8 which shows the modification of the clamp cover of the wiper apparatus which concerns on the 4th Embodiment of this invention. It is sectional drawing corresponding to FIG. 8 which shows the modification of the clamp cover of the wiper apparatus which concerns on the 4th Embodiment of this invention. It is sectional drawing corresponding to FIG. 3 which shows the structure of the principal part of the wiper apparatus which concerns on the 5th Embodiment of this invention. It is a perspective view corresponding to FIG. 2 which shows the structure of the principal part of the wiper apparatus which concerns on the 6th Embodiment of this invention. It is sectional drawing corresponding to FIG. 3 which shows the structure of the principal part of the wiper apparatus which concerns on the 6th Embodiment of this invention.

Explanation of symbols

        DESCRIPTION OF SYMBOLS 10 ... Wiper apparatus, 11 ... Wiper arm, 12 ... Arm head, 14 ... Retainer, 26 ... Storage part, 34 ... Intermediate washer nozzle, 36 ... Tip washer nozzle, 42 ... Clamp cover, 46 ... Pipe hose

Claims (3)

A wiper arm having an arm head, one end of which is fixed to the 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 washer nozzle provided on the wiper arm or the 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 cleaning liquid;
In a wiper device comprising
A recess provided along the longitudinal direction on the back side of the arm head facing the wiping surface;
A clamp cover that is mounted on the back side of the arm head and covers at least a part of the housing portion, and the piping hose is routed and held in the housing portion;
A wiper device comprising:   The wiper device according to claim 1, wherein a holding claw for directly holding the piping hose is formed on an inner surface side of the clamp cover.   The arm head is formed with a partition wall that divides the housing portion into one side and the other side in the arm head width direction, and the piping hose is sandwiched and held by the partition wall and the clamp cover The wiper device according to claim 1, wherein:

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