JP4916555B2 - Wiper pivot and rear wiper device - Google Patents

Description

  The present invention relates to a wiper pivot and a rear wiper device, and more particularly, to a wiper pivot and a rear wiper device having a structure that prevents unlocking of a lock device from a pivot hole provided in an opening / closing door.

  In general, a vehicle such as a van or a wagon type has a structure in which a back door is opened and closed, and the back door is provided with a lock device. In addition, a rear wiper device is provided on the rear window of the back door in order to secure a field of view behind the vehicle (see, for example, Patent Document 1).

  In this rear wiper device, a pivot shaft projects out of the vehicle through a pivot hole formed at the periphery of the rear window, and a wiper arm having a wiper blade is attached to the tip of the pivot shaft.

  In order to prevent water from entering from the pivot hole, a rubber waterproof grommet is generally mounted between the pivot shaft and the pivot hole (see, for example, Patent Document 2).

  By the way, the rear wiper device wipes the rear window by reciprocatingly rotating the wiper arm and the wiper blade. Therefore, the rear wiper device is disposed at the center in the vehicle width direction of the back door (for example, near the lower end center of the rear window). On the other hand, the locking device is arranged at the edge of the back door at the opening / closing end side (opposite to the hinge) at the center in the vehicle width direction.

JP 2003-267054 A JP-A-8-40214

  However, as described above, the rear wiper device and the lock device are usually arranged at the center of the back door in the vehicle width direction. For this reason, for example, an unlocking member such as a thin wire penetrates the waterproof grommet and intentionally enters the lock device from the pivot hole, and the lock device is pulled by pulling the lock portion of the lock device with the tip of the wire. There is a possibility of being unlocked, and the anti-theft effect of the vehicle is low due to its structure.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a wiper pivot and a rear wiper device that can enhance the vehicle antitheft effect.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a pivot shaft that penetrates a pivot hole formed in a body plate of the opening / closing door by a wiper motor attached to the inside of the opening / closing door having a lock device. A wiper pivot in a vehicle wiper device for rotating a wiper arm and a wiper blade provided outside the open / close door to wipe the window provided in the open / close door, the open / close door A pivot holder provided inside the pivot shaft so as to rotatably support the pivot shaft, and is attached to the pivot holder, and is adjacent to the pivot hole so as to surround at least an inner peripheral edge of the pivot hole on the locking device side. Anti-theft sleeve having an intrusion prevention wall arranged in a metal, and a metal embedded in the intrusion prevention wall Characterized by comprising a plate member, a.

  As described above, according to the first aspect of the present invention, by mounting the mounting portion of the anti-theft sleeve on the pivot holder, the intrusion prevention wall of the anti-theft sleeve is provided at least on the locking device side of the pivot hole. Since the inner peripheral edge is surrounded and arranged close to the pivot hole, an unskilled person intentionally intrudes a locking member such as a wire from the pivot hole toward the locking device, and unlocks the locking device. However, since the intrusion preventing wall prevents the unlocking member such as the wire from entering, the anti-theft effect of the vehicle as the wiper pivot can be enhanced.

  Further, since the anti-theft sleeve is only attached to the outer peripheral portion of the pivot holder along the axial direction of the pivot shaft, the assembling work of the anti-theft sleeve to the pivot holder is easy.

  Furthermore, since a metal plate is embedded in the intrusion prevention wall, for example, even if the intrusion prevention wall is thin, penetration of the unlocking member such as a wire can be reliably prevented.

  In order to solve the above-mentioned problem, the invention according to claim 2 penetrates a pivot hole formed in a vehicle body outer plate of the open / close door by a wiper motor attached to the inside of the open / close door having a lock device. A wiper pivot in a vehicle wiper device that wipes a window provided in the open / close door by rotating a pivot shaft and reciprocatingly rotating a wiper arm and a wiper blade provided outside the open / close door, A pivot holder provided inside the open / close door and rotatably supporting the pivot shaft; a mounting portion mounted on an outer peripheral portion of the pivot holder; and the pivot shaft on the distal end side of the pivot shaft in the mounting portion. A flange-shaped portion extending outward in the radial direction and an inner peripheral edge of at least the locking device side of the pivot hole An anti-theft sleeve having an intrusion prevention wall formed so as to stand up from the hook-shaped portion toward the distal end side of the pivot shaft so as to surround the anti-theft wall; and And a metal plate embedded in the wall.

  Thus, according to the invention described in claim 2, by mounting the mounting portion of the anti-theft sleeve on the pivot holder, the bowl-shaped portion faces the pivot hole inside the vehicle body outer plate of the open / close door, Moreover, since the intrusion prevention wall is formed upright from the hook-shaped portion toward the tip end side of the pivot shaft and is disposed in the vicinity of the pivot hole, an unskilled person can remove the unlocking member such as a wire from the pivot hole. Even if the lock device is intentionally intruded toward the lock device and the lock device is unlocked, the intrusion prevention wall prevents the unlocking member such as the wire from entering, so the anti-theft effect of the vehicle as a wiper pivot is enhanced. be able to.

  Further, since the anti-theft sleeve is only attached to the outer peripheral portion of the pivot holder along the axial direction of the pivot shaft, the assembling work of the anti-theft sleeve to the pivot holder is easy.

  Furthermore, since a metal plate is embedded in the intrusion prevention wall, for example, even if the intrusion prevention wall is thin, penetration of the unlocking member such as a wire can be reliably prevented.

  In the invention according to claim 3, the anti-theft sleeve is formed of an elastic material, and the tip of the intrusion prevention wall is disposed in contact with the inner surface of the body plate of the open / close door. There is no gap between the inner surface of the outer plate and the intrusion prevention wall, and even if an unlocking member such as a wire enters from the pivot hole and is sent to the lock device, the unlocking member such as a wire is surely intruded. To be blocked. In addition, since the entire anti-theft sleeve is made of an elastic material, the intrusion prevention wall can absorb vibration transmitted from the vehicle body outer plate even if the tip of the invasion prevention wall is in contact with the inner surface of the vehicle body outer plate. Generation of noise due to vibrations while the vehicle is running can be prevented.

  Further, in the anti-theft sleeve, more preferably, the tip of the intrusion prevention wall is pressed against the inner surface of the vehicle body outer plate and brought into close contact with the outer wall of the intrusion prevention wall. As the shape has an outer peripheral curved surface with a small diameter radially inward from the base end side to the tip end side, the intrusion prevention wall is simply pressed against the inner surface of the vehicle body outer plate to prevent intrusion. The wall falls radially inward (overhangs). As a result, it is possible to prevent a contact failure such that the intrusion prevention wall opens radially outward due to the intimate contact of the intrusion prevention wall with the inner surface of the vehicle body outer plate, and more reliably prevent intrusion of the unlocking member such as a wire. .

  Furthermore, in the invention described in claim 5, since the cross-sectional shape of the intrusion prevention wall is tapered from the base end side toward the front end side, the base end side of the intrusion prevention wall is relatively thick. Thicken to prevent penetration of unlocking members such as wire, the tip side of the intrusion prevention wall is thin and has low rigidity, while the vehicle is running due to the contact of the tip of the intrusion prevention wall with the inner surface of the vehicle body outer plate Generation of noise due to vibrations can be prevented.

  Further, as in the invention described in claim 6, by making the anti-theft sleeve non-rotatable around the outer peripheral portion of the pivot holder by the rotation prevention structure, it is possible to cause vibration during driving of the vehicle, vibration due to driving of the wiper device, etc. The anti-theft sleeve can be prevented from rotating around the outer periphery of the pivot holder. Thus, even if the intrusion prevention wall is formed so as to surround the inner peripheral edge of the pivot hole on the locking device side instead of the entire inner peripheral edge of the pivot hole, the intrusion prevention wall has an inner peripheral edge on the locking device side of the pivot hole. Therefore, it is possible to prevent the anti-theft effect of the vehicle as the wiper pivot from being deteriorated by vibration during driving of the vehicle, vibration due to driving of the wiper device, or the like.

  If the wiper pivot according to any one of claims 1 to 6 is applied to the rear wiper device as in the invention according to claim 7, the opening of the lock device provided on the back door of the vehicle is improved. Theft by the lock can be prevented.

It is sectional drawing which shows the structure of the vehicle body rear part of the vehicle which concerns on one Embodiment of this invention. FIG. 2 is an enlarged view of a main part of a vehicle body rear portion in the vehicle shown in FIG. It is a figure which shows the structure of the rear wiper apparatus which concerns on one Embodiment of this invention. It is an upper perspective view of the antitheft sleeve concerning one embodiment of the present invention. It is a downward perspective view of the antitheft sleeve concerning one embodiment of the present invention. It is a figure explaining the effect | action and effect in the rear wiper apparatus shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.

  First, the configuration of a rear wiper device 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

  FIG. 1 shows a vehicle body rear portion of a vehicle 40 according to an embodiment of the present invention. A back door 42 is provided at the rear of the vehicle body of the vehicle 40, and a locking device 44 is provided at an edge of the back door 42 at the opening / closing end side (opposite to the hinge) in the center in the vehicle width direction. ing. In this lock device 44, when a key is inserted into a key cylinder 46 provided on the back door 42 and rotated in a predetermined direction, the key cylinder rod 48 is raised or lowered, and the latch member 50 and the striker member 52 are locked or unlocked. It is configured to switch to a state.

  A rear wiper device 10 is provided at the center of the back door 42 in the vehicle width direction. In the rear wiper device 10 of the present embodiment, as shown in FIGS. 2 and 3, the pivot shaft 14 penetrating the pivot hole 56 formed in the rear window 54 of the back door 42 is rotated by the wiper motor 16 to rotate the rear window 54. The rear window 54 is wiped off by reciprocatingly rotating a wiper arm 18 and a wiper blade (not shown) provided outside the door.

  Further, in the rear wiper device 10 of the present embodiment, a rubber waterproof grommet 20 is provided between the pivot hole 56 and the pivot shaft 14, and the waterproof grommet 20 is provided between the pivot hole 56 and the pivot shaft 14. The gap is sealed.

  The wiper pivot 12 of the rear wiper device 10 is provided with a pivot holder 22 provided inside the back door 42 and rotatably supporting the pivot shaft 14. Further, the unlocking member 58 such as a thin wire (see FIG. 6) is prevented from being intentionally intruded into the pivot holder 22 from the pivot hole 56 toward the locking device 44 to prevent the locking device 44 from being unlocked. The anti-theft sleeve 24 is attached.

  As shown in FIG. 3, the anti-theft sleeve 24 has a mounting portion 26 provided with a mounting hole 26A penetrating along the axial direction of the pivot shaft 14, and the tip end of the pivot holder 22 is narrowed in the mounting hole 26A. By inserting the diameter portion 28, it is attached to the outer peripheral portion of the distal end small diameter portion 28. On the distal end side of the pivot shaft 14 in the mounting portion 26 of the anti-theft sleeve 24, a hook-shaped portion 30 is formed extending outward in the radial direction of the pivot shaft 14.

  As shown in FIGS. 4 and 5, the hook-shaped portion 30 has a substantially semicircular shape extending in the vehicle downward direction (Y direction). Further, the end surface 30A on the tip end side (X direction side) of the pivot shaft 14 in the bowl-shaped portion 30 is an inclined surface that moves away from the pivot hole 56 from the vehicle upward direction to the downward direction, as shown in FIG. ing.

  As shown in FIG. 3, the end surface 20A of the waterproof grommet 20 on the side of the hook-shaped portion 30 has an end surface 30A in order to reduce the gap between the end surface 30A on the tip end side of the pivot shaft 14 in the hook-shaped portion 30. It has a similar inclined surface to face.

  As shown in FIGS. 3 to 5, the bowl-shaped portion 30 is erected toward the tip end side of the pivot shaft 14 (the rear window 54 constituting the vehicle body outer plate) and is disposed close to the pivot hole 56. An intrusion prevention wall 32 is formed. Here, in the present embodiment, the locking device 44 is disposed below the pivot hole 56 at the edge of the back door 42 on the open / close end side (opposite the hinge provided on the vehicle roof side). Therefore, in order to prevent the intrusion prevention wall 32 from intruding the unlocking member 58 (see FIG. 6) such as a thin wire from the pivot hole 56 toward the locking device 44, the intrusion prevention wall 32 is formed in the pivot hole 56. Of these, at least the inner peripheral edge on the locking device 44 side needs to be enclosed.

  Therefore, in this embodiment, as shown in FIGS. 2 and 3, the intrusion prevention wall 32 surrounds the inner peripheral edge of the pivot hole 56 on the side of the locking device 44 in consideration of material cost reduction and downsizing. It has a shape. That is, as shown in FIGS. 4 and 5, the intrusion prevention wall 32 is formed over a range of about 180 degrees around the axis L <b> 1 of the pivot shaft 14 on the lower side (Y direction side) of the bowl-shaped portion 30. ing.

  In addition, the anti-theft sleeve 24 of the present embodiment is formed of an elastic material such as rubber as a whole by, for example, resin molding, and uses a relatively hard elastic material, and the tip 32A of the intrusion prevention wall 32 is used. 3, is arranged in contact with the inner surface 54A of the rear window 54, as shown in FIG.

  Here, as shown in FIGS. 4 and 5, the outer peripheral shape of the intrusion prevention wall 32 of the present embodiment is an outer peripheral curved surface having a small diameter radially inward from the flange-shaped portion 30 side toward the distal end portion 32A side. It has become. With this configuration, as shown in FIG. 3, the intrusion prevention wall 32 is pressed against the inner surface 54A of the rear window 54 and brought into close contact therewith, so that the intrusion prevention wall 32 is brought into contact with the distal end side of the pivot shaft 14 indicated by a two-dot chain line. From the standing upright state, it is in a state of falling inward in the radial direction indicated by a solid line (that is, it is in an overhanging state).

  Furthermore, as shown in the cross-sectional view of FIG. 3, the cross-sectional shape of the intrusion prevention wall 32 is tapered from the flange-shaped portion 30 side toward the distal end portion 32A side. That is, the base end portion side of the intrusion prevention wall 32 is relatively thick, and the distal end portion 32A side of the intrusion prevention wall 32 is thin and has low rigidity.

  Further, as shown in FIGS. 3 to 5, engagement protrusions 34 </ b> A and 34 </ b> B are provided around the mounting hole 26 </ b> A on the end surface 26 </ b> B opposite to the pivot hole 56 of the mounting part 26. Then, as shown in FIG. 3, the engagement convex portions 34A and 34B are engaged with the engagement concave portions 38A and 38B formed in the step portion 36 of the pivot holder 22, whereby the antitheft sleeve 24 is provided. The pivot holder 22 is not rotatable around the outer periphery.

  In addition, a metal plate 66 is embedded in the intrusion prevention wall 32 of the antitheft sleeve 24. The plate material 66 is preferably embedded at the same time as the resin molding of the antitheft sleeve 24.

  Next, the operation and effect of the rear wiper device 10 having the above configuration will be described.

  According to the rear wiper device 10 according to the present embodiment, by attaching the mounting portion 26 of the anti-theft sleeve 24 to the pivot holder 22, the hook-shaped portion 30 enters the pivot hole 56 inside the rear window 54 of the back door 42. An intrusion prevention wall 32 is formed so as to face and face the distal end side of the pivot shaft 14 from the hook-shaped portion 30, and is disposed close to the pivot hole 56.

  Therefore, as shown in FIG. 6, an unskilled person intentionally enters the unlocking member 58 such as a thin wire through the waterproof grommet 20 from the pivot hole 56 toward the locking device 44 (see FIG. 2). Even if the lock device 44 is unlocked, the intrusion prevention wall 32 prevents the unlocking member 58 such as a wire from entering, so that the anti-theft effect of the vehicle 40 as the wiper pivot 12 can be enhanced. .

  In the present embodiment, the anti-theft sleeve 24 is made of an elastic material, and the distal end portion 32A of the intrusion prevention wall 32 is disposed in contact with the inner surface 54A of the rear window 54 of the back door 42.

  Therefore, there is no gap between the inner surface 54A of the rear window 54 and the intrusion prevention wall 32, and even if the unlocking member 58 such as a wire enters the pivot hole 56 and is sent into the lock device 44, the wire or the like Intrusion of the unlocking member 58 is reliably prevented.

  Furthermore, in the present embodiment, the end surface 30A on the distal end side of the pivot shaft 14 in the bowl-shaped portion 30 is an inclined surface that is farther from the pivot hole 56 as it goes from the vehicle upward direction to the downward direction. Therefore, the unlocking member 58 such as a wire penetrating the waterproof grommet 20 and penetrating from the pivot hole 56 toward the locking device 44 can smoothly enter the blocking wall without contacting the end face 30A as shown in FIG. 32 is prevented from entering the locking device 44 (see FIG. 2).

  Further, in the antitheft sleeve 24 according to the present embodiment, the distal end portion 32A of the intrusion prevention wall 32 is pressed and brought into close contact with the inner surface 54A of the rear window 54. The outer peripheral shape has an outer peripheral curved surface having a small diameter radially inward from the flange-shaped portion 30 side toward the tip end portion 32A side. Therefore, the intrusion prevention wall 32 is in a state of falling inward in the radial direction (overhanging state) by simply pressing the intrusion prevention wall 32 against the inner surface 54A of the rear window 54 to bring it into close contact.

  This prevents inadequate contact such that the intrusion prevention wall 32 opens radially outward due to the intimate contact of the intrusion prevention wall 32 with the inner surface 54A of the rear window 54, and further prevents the unlocking member 58 such as a wire from entering. Can be surely stopped.

  Further, as in the present embodiment, the antitheft sleeve 24 is made unrotatable around the outer peripheral portion of the pivot holder 22, so that the antitheft sleeve 24 is caused by vibration during driving of the vehicle 40, vibration due to driving of the wiper device, and the like. Can be prevented from rotating around the outer periphery of the pivot holder 22.

  Accordingly, as in the present embodiment, the intrusion prevention wall 32 is not surrounded by the entire inner periphery of the pivot hole 56 but the inner periphery of the pivot hole 56 on the locking device 44 side so as to surround the inner periphery of the pivot shaft 14. Even in the case of standing up toward the distal end side, the state where the intrusion prevention wall 32 surrounds the inner peripheral edge of the pivot hole 56 on the lock device 44 side can be maintained. Thereby, it is possible to prevent the anti-theft effect of the vehicle 40 as the wiper pivot 12 from being deteriorated due to vibration during driving of the vehicle 40 or vibration due to driving of the wiper device.

  Further, since the entire anti-theft sleeve 24 is formed of an elastic material, even if the tip end portion 32A of the intrusion prevention wall 32 is brought into contact with the inner surface 54A of the rear window 54, vibration transmitted from the rear window 54 is prevented from entering the intrusion prevention wall. Since 32 can be absorbed, it is possible to prevent the generation of noise due to vibrations while the vehicle is running.

  In the present embodiment, the cross-sectional shape of the intrusion prevention wall 32 is tapered from the flange-shaped portion 30 side toward the distal end portion 32A side. For this reason, the wall portion 30 side of the intrusion prevention wall 32, that is, the base end portion side is relatively thick and can prevent penetration of the unlocking member 58 such as a wire. Since the distal end portion 32A side of the intrusion prevention wall 32 is thin and has low rigidity, even if the elastic material is made relatively hard and the intrusion prevention effect of the unlocking member 58 is enhanced, the distal end portion of the intrusion prevention wall 32 is increased. Generation of noise due to vibration during traveling of the vehicle due to contact with the inner surface 54A of the 32A rear window 54 can be prevented.

  Moreover, since the anti-theft sleeve 24 according to the present embodiment is only mounted on the outer peripheral portion of the pivot holder 22 along the axial direction of the pivot shaft 14, the assembling work of the anti-theft sleeve 24 to the pivot holder 22 is also possible. Easy.

  Further, a metal plate 66 is embedded in the intrusion prevention wall 32. Therefore, even if the intrusion prevention wall 32 is not made of, for example, a thick shape or hard special rubber, the penetration of the unlocking member 58 such as a wire can be reliably prevented.

  As described above in detail, according to the rear wiper device 10 according to the present embodiment, it is possible to prevent theft by unlocking the locking device 44 provided on the back door 42 of the vehicle 40.

  Next, a modified example of the rear wiper device 10 according to one embodiment of the present invention will be described.

  In the above embodiment, the pivot hole 56 is formed in the rear window 54 constituting the vehicle body outer plate, but this is not restrictive. In addition, the pivot hole 56 may be formed in an outer panel as a vehicle body outer plate provided in the back door 42, for example.

  In the above embodiment, the output shaft of the wiper motor 16 is the pivot shaft 14, and the wiper arm 18 is directly fixed to the pivot shaft 14 as the output shaft. However, the pivot shaft 14 is separately fixed to the vehicle body. A pivot shaft that is rotatably supported by a pivot holder (not shown) and rotated by a swing link mechanism (not shown) connected to the output shaft of the wiper motor 16 may be used.

DESCRIPTION OF SYMBOLS 10 ... Rear wiper apparatus, 12 ... Wiper pivot, 14 ... Pivot shaft, 16 ... Wiper motor, 18 ... Wiper arm, 20 ... Waterproof grommet, 22 ... Pivot holder, 24 ...・ Anti-theft sleeve, 26... Mounting portion, 26 A... Mounting hole, 28... Thin tip portion, 30... Hook-shaped portion, 32. 34A, 34B ... engaging convex part, 36 ... step part, 38A, 38B ... engaging concave part, 40 ... vehicle, 42 ... back door (open / close door), 44 ...・ Locking device, 46... Key cylinder, 48... Key cylinder rod, 50 .. latch member, 52 .. striker member, 54 .. rear window (vehicle body outer plate), 56. Hole, 58 ... unlocking member, 66 ... Wood

Claims (7)

A wiper arm and a wiper blade provided outside the opening / closing door by rotating a pivot shaft penetrating a pivot hole formed in a vehicle body outer plate of the opening / closing door by a wiper motor attached to the inside of the opening / closing door having a lock device A wiper pivot in a vehicle wiper device for wiping a window provided in the open / close door by reciprocally rotating
A pivot holder provided inside the open / close door and rotatably supporting the pivot shaft;
An anti-theft sleeve attached to the pivot holder and having an intrusion prevention wall disposed in proximity to the pivot hole so as to surround at least the inner peripheral edge of the pivot hole on the locking device side;
A metal plate embedded in the intrusion prevention wall;
Wiper pivot characterized by comprising. A wiper arm and a wiper blade provided outside the opening / closing door by rotating a pivot shaft penetrating a pivot hole formed in a vehicle body outer plate of the opening / closing door by a wiper motor attached to the inside of the opening / closing door having a lock device A wiper pivot in a vehicle wiper device for wiping a window provided in the open / close door by reciprocally rotating
A pivot holder provided inside the open / close door and rotatably supporting the pivot shaft;
A mounting portion mounted on an outer peripheral portion of the pivot holder; a hook-shaped portion formed on the distal end side of the pivot shaft in the mounting portion so as to extend radially outward of the pivot shaft; and An intrusion prevention wall that is formed to stand from the flange-shaped portion toward the tip end side of the pivot shaft so as to surround at least the inner peripheral edge of the locking device side, and is disposed in the vicinity of the pivot hole. An anti-theft sleeve,
A metal plate embedded in the intrusion prevention wall;
Wiper pivot characterized by comprising.   2. The anti-theft sleeve is formed of an elastic material, and a tip portion of the intrusion prevention wall is disposed in contact with an inner surface of a vehicle body outer plate of the open / close door. The wiper pivot according to 2.   The anti-theft sleeve has an outer peripheral curved surface in which an outer peripheral shape of the intrusion prevention wall has a small diameter radially inward from the base end side toward the tip end side. Wiper pivot.   5. The wiper according to claim 3, wherein the anti-theft sleeve has a cross-sectional shape of the intrusion prevention wall that is tapered from the base end side toward the tip end side. pivot.   The wiper pivot according to any one of claims 1 to 5, wherein the anti-theft sleeve is non-rotatable around the outer periphery of the pivot holder by a rotation preventing structure.   A rear wiper device comprising the wiper pivot according to any one of claims 1 to 6.

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