JPH0924800A - Temporary hold structure for wiper pivot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance operating performance by a simple constitution by provid ing a support part with a locking part regulating movement in the axial direc tion of a temporarily locking member, providing the locking member with an engaging part to be elastically engaged with a peripheral side part of a mounting hole, and thereby regulating the axial movement of a pivot holder in a space between a flange part and an engaging part. SOLUTION: A locking member 30 is provided, which temporarily holds a pivot holder 20 onto a body panel 4, both a support art 21 rotatably supporting a pivot shaft 10, and a flange 22 integrally formed around the support part 21, are provided for a pivot 20, and a locking part is provided for the support part 21, which regulates axial movement of the temporarily locking member 30 assembled with its outer circumferential surface. The temporarily locking member 30 is provided with an engaging part 31 which is extended in the radial direction around an axial center of the pivot shaft 10, and is elastically engaged with a peripheral side part of a mounting hole 41, and regulates the axial movement of the pivot holder 20 between the flange part 22 and the engaging part 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot holder for rotatably supporting a pivot shaft of a wiper,
Especially when fixing the pivot holder to the vehicle body panel,
The present invention relates to a temporary holding structure for temporarily holding.

[0002]

2. Description of the Related Art Conventionally, in order to improve the workability of attaching a wiper pivot holder to a vehicle body panel, when fixing the pivot holder to the vehicle body panel, the pivot holder is held on a cowl top side by a temporary holding means before What is fixed to the panel, for example, public utility model 1994 7593
No. 0 is known.

A structure for temporarily holding the pivot holder on the vehicle body panel shown in this publication will be described below with reference to FIG. That is, the support portion 21 of the pivot holder 2 that rotatably supports the pivot shaft 1 is inserted into the mounting hole 41 formed in the vehicle body panel 4 at the cowl top portion of the vehicle, and the flange portion 22 of the pivot holder 2 is attached to the vehicle body. Aligning the temporary holding hole 42 formed in the vehicle body panel 4 with the panel 4 in contact with the snap pin 3 attached to the flange portion 22, and inserting the snap pin 3 into the temporary holding hole 42. Therefore, the pivot holder 2 is temporarily fixed to the vehicle body panel 4.

[0004]

However, when the snap pin 3 is inserted into the temporary holding hole 42, it is necessary to align the temporary holding hole 42 and the snap pin 3 with each other, and it is necessary to improve workability sufficiently. Absent. Moreover, since the snap pin 3 is supported by the plate-shaped flange portion 22 that extends around the support portion 21 of the pivot holder 2, the pivot holder 2 is not stable even if it is temporarily fixed at only one place, and the final fixing is not performed. It is sometimes necessary to realign the fixing bolt 5 and the fixing hole 43 of the vehicle body panel 4. Temporary fixing to the vehicle body panel 4 by a plurality of snap pins 3 may be considered to eliminate the alignment at the time of final fixing, but the number of parts increases,
Workability is also reduced. It is also conceivable to form the plurality of snap pins 3 integrally with the flange portion 22, but the mold structure becomes complicated, and the material of the pivot holder 2 must be made of a resin material in conformity with the snap pins 3. Manufacturing restrictions arise.

In view of the above problems, it is an object of the present invention to provide a temporary holding structure for a wiper pivot, which has a simple structure and can sufficiently improve workability.

[0006]

In order to achieve the above object, the present invention employs the following technical means. However, the reference numerals in parentheses of the respective means described below indicate the correspondence with the specific means described in the embodiments described later, and are not limited to these.

According to the first aspect of the invention, the pivot holder (20) for rotatably supporting the pivot shaft (10) having the wiper arm fixed to one end is provided with a mounting hole (41) formed in the vehicle body panel (4). ), The temporary holding structure of the wiper pivot (100) temporarily holding the vehicle body panel (4), the temporary holding structure is
The pivot holder (20) has a temporary fixing member (30) for temporarily holding the pivot holder (20) on the vehicle body panel (4), and the pivot holder (20) includes the pivot shaft (10).
And a support part (21) for rotatably supporting the
1) has a flange portion (22) integrally formed around the periphery thereof, and the support portion (21) prevents axial movement of the temporary fixing member (30) assembled to the outer peripheral surface thereof. It has a locking portion (23, 80) for regulating, and the temporary fixing member (3
0) has an engaging portion (31) which expands in the radial direction around the axis (H) of the pivot shaft (10) and elastically engages with the edge portion (44) of the mounting hole (41), It is characterized in that the axial movement of the pivot holder (20) is restricted between the flange portion (22) and the engagement portion (31).

In the above structure, the pivot holder (2
0) is a mounting hole (4) of the vehicle body panel (4) by the temporary fixing member (30) assembled to the outer peripheral surface of the support portion (21).
It can be temporarily held on the vehicle body panel (4) simply by inserting it in 1). Moreover, since this temporary fixing member (30) is assembled to the outer peripheral surface of the supporting portion (21) about the axis (H) of the pivot shaft (10), it is stable even in the case of temporary holding. This is achieved with one member. Further, since the engaging portion (31) of the temporary fixing member (30) only elastically engages with the edge portion (44) of the mounting hole (41), the pivot holder (centering around the shaft center (H) ( Two
0) is rotatable and can be easily fixed in the fixing hole (43) when the pivot holder (20) is finally fixed to the vehicle body panel (4).
Can be aligned with the fixing bolt (5).

According to a second aspect of the present invention, in addition to the first aspect of the invention, the flange portion (22) of the pivot holder (20) surrounds the temporary fixing member (30) in a cylindrical peripheral wall. The peripheral wall portion (24) has a cutout portion (24) in which the engaging portion (31) of the temporary fixing member (30) can project radially outward of the peripheral wall portion (24). Two
It is characterized by having 5). As a result, the temporary fixing member (3) having the engaging portion (31) that elastically engages in the first place.
0) is easily deformed as a whole, but the cylindrical peripheral wall (2
4) Surrounds the perimeter so pivot holder (20)
It is possible to make the state of attachment to the support portion (21) more reliable. Further, at this time, the engaging portion (31) can be engaged with the edge portion (44) of the mounting hole (41) via the cutout portion (25) of the peripheral wall portion (24).

According to the third aspect of the present invention, the pivot holder (20) rotatably supporting the pivot shaft (10) having the wiper arm fixed to one end is provided with a mounting hole (41) formed in the vehicle body panel (4). ), The temporary holding structure of the wiper pivot (100) temporarily holding the vehicle body panel (4), the temporary holding structure is
A temporary fixing member (30) in which a holding portion (310) assembled and held in the mounting hole (41) of the vehicle body panel (4) is formed in advance.
0), and the temporary holder (300) temporarily holds the pivot holder (20) on the vehicle body panel (4), and the pivot holder (20) rotates the pivot shaft (10). A supporting part (21) that supports the movable part
And a flange portion (22) integrally formed around the support portion (21), and the support portion (21) is
Locking portions (23, 8) locked by the temporary fixing member (300) to restrict axial movement of the pivot holder (20).
0), the temporary fixing member (300) is made of a rubber material, and the locking portions (23, 8) of the support portion (21).
0) to engage with the pivot shaft (10) to rotatably support the pivot holder (20) about an axis (H) of the pivot shaft (10), and the flange portion (22). ), The holding portion (310) is sandwiched between the vehicle body panel (4) and the axial movement of the pivot holder (20) between the holding portion (310) and the engaging portion (320) is restricted. Is characterized by.

In the above structure, particularly, the pivot holder (2
0) attaches the pivot holder (2) to the temporary fixing member (300) assembled and held in the mounting hole (41) of the vehicle body panel (4) in advance.
By inserting the support part (21) of (0), the engagement part (320) of the temporary fixing member (300) engages with the locking part (23, 80) of the support part (21) and the vehicle body panel ( 4) temporarily held. Moreover, the temporary fixing member (300) has the support portion (2) centered on the axis (H) of the pivot shaft (10).
Since 1) is assembled to the temporary fixing member (300), even temporary holding is stable, and this is achieved by one member. Further, since the pivot holder (20) is rotatably supported by the temporary fixing member (300) assembled and held in the mounting hole (41) in advance, the pivot holder (20) is centered on the shaft center (H). Is rotatable with respect to the temporary fixing member (300) and the vehicle body panel (4), and can be easily fixed when the pivot holder (20) is finally fixed to the vehicle body panel (4). 5) Can be aligned with. Furthermore, since the temporary fixing member (300) is made of rubber and the holding portion (310) is sandwiched between the flange portion (22) and the vehicle body panel (4), raindrops are outside the vehicle body panel (4). It is possible to prevent water from intruding into the inside through the mounting hole (41).

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. (First Embodiment) A first embodiment will be described with reference to FIGS. FIG. 1 is an overall configuration diagram in which a part is broken at an axis H of a pivot shaft 10 of a wiper pivot 100 to which the present invention is applied, and is generally provided on a body panel 4 of a cowl top portion of a vehicle such as an automobile. There is. FIG. 2 shows a top view of the vehicle body panel 4 of FIG.

A pivot shaft 10 has a conical portion 11 and a male screw portion at one end, and the peripheral surface of the conical portion 11 is knurled. Further, one end of a wiper arm (not shown) is fixed by fastening a nut to this male screw portion, and the conical portion 11 is knurled to prevent rotation. The other end of the pivot shaft 10 is reduced in diameter to form a step, and one end of a pivot lever 70 rotated by a transmission force from a wiper motor (not shown) is fixed to the reduced diameter portion by caulking 12.

Reference numeral 20 denotes a pivot holder which is formed by die-casting aluminum and rotatably supports the pivot shaft 10 via an oilless metal 6, and a support portion 21 which supports the pivot shaft 10 and A flange portion 22 is integrally formed around the support portion 21 and serves as a seat surface for fixing the pivot holder 20 to the vehicle body panel 4. In the flange portion 22, a fixing hole 26 for finally fastening and fixing (fixing after temporary fixing) the pivot holder 20 in the fixing hole 43 of the vehicle body panel 4 with the fixing bolt 5 (see FIG. 8), which will be described later. Perimeter wall 24
Are formed. As shown in FIG. 2, the fixing holes 26 are located at the top of the substantially triangular flange portion 22 on the same radius from the axis H of the pivot shaft 10. Further, the outer peripheral surface of the support portion 21 is formed concentrically around the axis H of the pivot shaft 10.

At the end surface of the support portion 21 on the side where the wiper arm is fixed, the C ring or the E ring 13 is fixed to the peripheral surface of the pivot shaft 10 with a washer 50 interposed therebetween to prevent the pivot shaft 10 from coming off in the axial direction. Is going. In addition, the outer circumference of the support portion 21 corresponding to the axial height of the temporary fixing member 30 described later (the axial height of the temporary fixing member 30 from the vehicle body panel 4 to the wiper arm fixed side when the pivot holder 20 is finally fixed). A groove 23 is formed in the surface portion.

The peripheral wall portion 24 is formed so as to surround the outer periphery of the support portion 21 with an interval such that the temporary fixing member 30 is loosely fitted, and has a predetermined width at intervals of 120 degrees. A section 25 is provided. The notch 25 has an engaging portion 31 of a temporary fixing member 30 which will be described later, which extends outward in the radial direction of the peripheral wall portion 24 and is elastically engageable with an edge portion 44 of a mounting hole 41 formed in the vehicle body panel 4. .

The temporary fixing member 30 has a substantially cylindrical shape, and an opening 32 is formed by partially opening the temporary fixing member 30. Further, the side surface 34 of the temporary fixing member 30 is cut and raised outward in the radial direction so that the engaging portion 31 is centered on the axis H of the pivot shaft 10.
It is formed in three places at intervals of 20 degrees. This engaging portion 31
Has an elastic force and bends, and in a natural state, it is cut and raised so as to be wider than the diameter of the mounting hole 41 of the vehicle body panel 4. On the other hand, an end surface of the temporary fixing member 30 on the side where the wiper arm is fixed is provided with an engaging portion 33 that engages with the groove 23 formed in the outer peripheral surface portion of the supporting portion 21. The engagement between the engagement portion 33 and the groove 23 is such that the circumferential width of the opening portion 32 is equal to that of the support portion 21.
Since the diameter is smaller than the diameter of the temporary holding member 30 at the time of locking, the locking portion 33 is expanded due to the restoring force thereof.
The pivot shaft 10 cannot move in the axial direction (direction of arrow A in FIG. 4) and can rotate in the circumferential direction.

Next, a temporary holding operation for temporarily holding the pivot holder 20 having the above structure in the mounting hole 41 of the vehicle body panel 4 will be described. As shown in FIG. 3, the temporary fixing member 30 is inserted through the supporting portion 21 of the pivot holder 20 to support the supporting portion 2
The engaging portion 33 of the temporary fixing member 30 is engaged with the groove 23 formed in the outer peripheral surface portion of No. 1. At that time, the engaging portion 31 of the temporary fixing member 30 is made to project radially outward from the cutout portion 25 of the peripheral wall portion 24.

The pivot holder 20 with the temporary fixing member 30 thus locked is inserted into the mounting hole 41 of the vehicle body panel 4 from the inside of the vehicle body panel 4 (the lower side of FIG. 4) in the direction of arrow A in FIG. Go. Then, the engaging portion 31 of the temporary fixing member 30 is in a natural state from the axis H of the pivot shaft 10 to the radius d2 (see FIG. 5).
(See), the engagement portion 31 has a radius Z (Z
When it abuts the mounting hole 41 of <d2), the engaging portion 31 bends,
The radius d2 changes to the radius d1 (d1 <d2). And
When the pivot holder 20 is further inserted into the mounting hole 41, the engaging portion 31 is released from the bending due to the contact with the mounting hole 41 and returns to the natural state as shown in FIG. That is, the distance from the axis H to the tip of the engaging portion 31 returns from the radius d1 to the radius d2.

In this way, the engaging portion 31 engages with the edge portion 44 of the mounting hole 41, and the pivot holder 20 does not fall inside the vehicle body panel 4. Further, the engaging portion 31 has the mounting hole 4
The flange portion 22 of the pivot holder 20 comes into contact with the inner side surface of the vehicle body panel 4 when it is engaged with the edge portion 44 of No. 1, and the engagement of the engaging portion 31 and the contact of the flange portion 22 cause the pivot holder 20 to move. It is temporarily fixed to the vehicle body panel 4 stably without rattling in the axial direction.

As described above, the temporary fixing of the pivot holder 20 to the vehicle body panel 4 is performed by one component of the temporary fixing member 30, and the temporary fixing is performed by the axis H of the pivot shaft 10.
Since it is rotatably carried out with respect to the vehicle body panel 4, the pivot holder 20 is rotated in the final fixing to easily align the fixing hole 26 of the pivot holder 20 and the fixing hole 43 of the vehicle body panel 4. be able to. In addition, the fixing bolt 90 is previously installed in the fixing hole 26 of the pivot holder
Even when fixing (see FIG. 6), if the fixing holes 43 of the vehicle body panel 4 and the fixing bolts 90 are aligned at the time of temporary fixing, the alignment becomes unnecessary at the time of final fixing. Therefore, according to the first embodiment, the fixing hole 4 of the vehicle body panel 4 is either temporarily fixed or finally fixed.
3 and the fixing hole 26 of the pivot holder 20 or the fixing bolt 90 may be aligned.

Further, according to the first embodiment, since the flange portion 22 of the pivot holder 20 has the cylindrical peripheral wall portion 24 that surrounds the temporary fixing member 30, the elastically deformable material. Even the temporary fixing member 30 formed by can be held and protected so as not to accidentally come off.

According to the first embodiment, the locking portion 33 of the temporary fixing member 30 is locked in the groove 23 formed on the outer peripheral surface of the supporting portion 21, but the invention is not limited to this. Stop member 3
0 may be a ring-shaped member made of metal and press-fitted and fixed to the peripheral surface of the support portion 21 from the outside in the axial direction. According to this, the locking portion 33 and the groove 23 can be eliminated.

(Second Embodiment) Next, a second embodiment will be described with reference to FIG. Since the second embodiment is basically the same as the first embodiment, only different points will be described and common parts will not be described. In the first embodiment, the locking portion 33 is formed on the temporary fixing member 30, and the locking portion 3 is formed.
3 is locked in the groove 23 formed in the support portion 21, and the temporary fixing member 3
Although 0 is attached, the second embodiment is different from the support portion 21.
A projection 80 having a taper surface 81 is formed on the outer peripheral surface of, and the end surface of the temporary fixing member 30 is brought into contact with the projection 80.

More specifically, the axial height of the temporary fixing member 30 (the temporary fixing member 30 from the vehicle body panel 4 to the wiper arm fixed side when the pivot holder 20 is finally fixed).
At the outer peripheral surface portion of the support portion 21 corresponding to
A protrusion 80 having a tapered surface 81 whose diameter is gradually reduced toward the wiper arm fixing side is formed, and the wiper arm fixing side end face of the temporary fixing member 30 is brought into contact with the protrusion 80. As a result, when the temporary fixing member 30 is inserted through the supporting portion 21 of the pivot holder 20 and attached, the temporary attaching member 30 can be easily attached by the tapered surface 81, but the protrusion 80 makes it difficult to come off due to the barbed effect (effect that it is easy to enter but difficult to remove). ing. Therefore, the movement of the temporary fixing member 30 to the wiper arm fixed side with respect to the support portion 21 is restricted.

The fixing bolt 90 is previously fixed to the fixing hole 26 of the pivot holder 20 by fixing the fixing bolt 90 to the fixing hole 26 of the pivot holder 20 on the side of the flange portion 91 of the fixing bolt 90 as shown in FIG. A serration is formed,
The fixing bolt 90 is previously fixed by being press-fitted into the fixing hole 26. Reference numeral 93 is a threaded portion, and 92 is a nut screwed into the threaded portion.

(Third Embodiment) A third embodiment will be described with reference to FIG. The third embodiment is also basically the same as the above-described first embodiment, the differences are as follows, and the description of the common parts is omitted. That is, the temporary fixing member 300 is made of a rubber material (for example, ethylene propylene rubber).
0 is pushed into the mounting hole 41 of the vehicle body panel 4 from the outside in the axial direction to assemble the holding portion 310, and the temporary fixing member 300 is attached to the vehicle body panel 4 in advance. And the pivot holder 2
When the support portion 21 of No. 0 is inserted into the temporary fixing member 300 previously attached to the vehicle body panel 4, the engaging portion 320 of the temporary fixing member 300 is fitted in the groove 23 to temporarily fix the pivot holder 20 to the vehicle body panel 4. be able to.

When the holding portion 310 of the temporary fixing member 300 is assembled in the mounting hole 41 of the vehicle body panel 4, the temporary fixing member 300 is
The claw portion 330 is caught inside the mounting hole 41. The claw portion 330 is formed over the entire circumference of the mounting hole 41 and has a predetermined thickness. Further, the flange portion 22 of the pivot holder 20 is formed with a recess portion 27 having a depth shallower than the thickness of the claw portion 330, and the claw portion 3 is finally fixed.
30 is sandwiched between the vehicle body panel 4 and the bottom surface of the recess 27, and the claws 330 are pressed against each other with a predetermined surface pressure to be housed in the recess 27.

As described above, the third embodiment not only has the same advantages as the first embodiment, but also uses the temporary holding structure of the wiper pivot to allow raindrops to be attached from the outside of the vehicle body panel 4 to the mounting hole. It is also possible to prevent water from entering through 41.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram in which a part of a wiper pivot according to a first embodiment of the present invention is cut away.

FIG. 2 is a top view of the vehicle body panel of FIG.

FIG. 3 is a perspective view of a main part of the first embodiment.

FIG. 4 is an explanatory diagram illustrating temporary fixing of the pivot holder in the first embodiment.

FIG. 5 is an explanatory diagram illustrating a temporary fixing completion state in FIG. 4.

FIG. 6 is an explanatory diagram illustrating a second embodiment to which the present invention has been applied.

FIG. 7 is an explanatory diagram illustrating a third embodiment to which the present invention has been applied.

FIG. 8 is a schematic view showing a conventional wiper pivot temporary holding structure.

[Explanation of symbols]

 1, 10 ... Pivot shaft 2, 20 ... Pivot holder 4 ... Vehicle body panel 21 ... Support part 22 ... Flange part 23 ... Groove (locking part) 24 ... Peripheral wall part 25 ... Notch part 30,300 ... Temporary fixing member 31, 320 ... Engaging portion 41 ... Mounting hole 44 ... Edge portion 80 ... Protrusion 310 ... Holding portion.

Claims (3)

[Claims] 1. A wiper pivot for temporarily holding a pivot holder, which pivotally supports a pivot shaft having a wiper arm fixed at one end, in a mounting hole formed in a vehicle body panel when the pivot holder is fixed to the mounting hole formed in the vehicle body panel. In the temporary holding structure, the temporary holding structure has a temporary fixing member that temporarily holds the pivot holder on the vehicle body panel, and the pivot holder has a support portion that rotatably supports the pivot shaft, A flange portion integrally formed around the support portion, wherein the support portion has a locking portion that is mounted on an outer peripheral surface thereof and that restricts axial movement of the temporary fixing member. The temporary fixing member has an engaging portion that expands in the radial direction about the axis of the pivot shaft and elastically engages with the edge portion of the mounting hole, and the flange portion and the engaging portion Temporary holding structure of the wiper pivot characterized in that the arrangement for regulating the axial movement of the pivot holder in. 2. The flange portion of the pivot holder has a cylindrical peripheral wall portion surrounding the periphery of the temporary fixing member, and the peripheral wall portion is such that the engaging portion of the temporary fixing member is the peripheral wall portion. The temporary holding structure for the wiper pivot according to claim 1, wherein the temporary holding structure for the wiper pivot is provided with a notch capable of protruding outward in the radial direction of the. 3. A wiper pivot for temporarily holding a pivot holder, which rotatably supports a pivot shaft having one end fixed to a wiper arm, in a mounting hole formed in the vehicle body panel when the pivot holder is fixed to the mounting hole formed in the vehicle body panel. In the temporary holding structure, the temporary holding structure has a temporary fixing member in which a holding portion assembled and held in a mounting hole of the vehicle body panel is formed in advance, and the temporary holder allows the pivot holder to be attached to the vehicle body panel. Temporarily holding, the pivot holder has a support portion that rotatably supports the pivot shaft, and a flange portion integrally formed around the support portion, the support portion, The temporary holding member has a locking portion that is restrained from axial movement of the pivot holder, and the temporary fixing member is made of a rubber material, and is fixed to the locking portion of the support portion. And an engaging portion that rotatably supports the pivot holder about the axis of the pivot shaft, and the flange portion holds the holding portion with the vehicle body panel to engage the engaging portion. A temporary holding structure for the wiper pivot, characterized in that the axial movement of the pivot holder is restricted between the pivot holder and the portion.