JP2005153878A - Floating supporting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating supporting structure capable of certainly attaching an attached member to an attaching member (or detaching it from the attaching member). <P>SOLUTION: In a collar member 21, a large-diameter flange section and a cylindrical section 21a are integrally formed, and a female screw 21d is formed on the inner peripheral surface of the cylindrical section 21a. A stopper section 21e is disposed in the large-diameter flange section of the collar member 21. In a vibration proofing member 20, the cylindrical section 21a is inserted into a through hole 20d of the tube section 20a, the collar member 21 is engaged with it, and the stopper section 21e is mounted to a pivot holder 16 so that it is located between both opening ends 17a (or 18a) of an attaching section 17 (or 18) of the pivot holder 16. The pivot holder 16 is floating-supported by a car body by screwing a bolt 32 with a female screw 21d of the collar member 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a floating support structure, and more particularly to a floating support structure that makes it difficult to transmit vibration of a wiper frame of a vehicle wiper device to a vehicle body.

  Generally, a wiper device is provided in the vicinity of the lower part of the windshield of a vehicle. Some conventional wiper devices are mounted on a vehicle by assembling a wiper frame to which a wiper motor or a wiper link mechanism for converting rotation of the wiper motor into reciprocating rotation of a pivot shaft is attached to a vehicle body. The pivot shaft has a wiper arm to which a wiper blade is connected at the tip. When the wiper is operated, the rotational movement of the wiper motor is converted into the pushing and pulling movement of the wiper link mechanism, and the force generated by the pushing and pulling movement of the wiper link mechanism acts on the wiper frame via the pivot shaft, or the wiper motor itself Is transmitted, and the wiper frame vibrates. For this reason, when the wiper frame is attached to the vehicle body, a floating support structure (anti-vibration rubber) is disposed between the frame and the vehicle body to prevent the vibration of the frame from being transmitted to the vehicle body.

  FIG. 11 is a cross-sectional view of a main part showing a conventional floating support structure. A pivot holder 51 that is integrally connected to a wiper frame (not shown) and rotatably supports the pivot shaft is provided with a mounting portion 52, and a mounting hole 52a provided in the mounting portion 52 is provided with a vibration proof. A rubber 53 is attached. The anti-vibration rubber 53 is provided with an insertion hole 54, and a collar 55 is fitted in the insertion hole 54. The collar 55 includes a cylindrical portion 56 and a flange portion 57 extending in the radial direction at one end (the lower end in FIG. 11) of the cylindrical portion 56. A through hole 56a provided in the cylindrical portion 56 is formed as a screw hole. The vehicle body 58 is provided with a fastening hole 58a.

  Then, by screwing the bolt 59 inserted through the fastening hole 58a of the vehicle body 58 into the screw hole 56a of the collar 55 inserted through the insertion hole 54 of the vibration isolating rubber 53, the mounting portion 52 is Floating support is provided to the vehicle body 58 via the vibration isolating rubber 53. At this time, the other end (the upper end in FIG. 11) 56 b of the cylindrical portion 56 of the collar 55 abuts on the periphery of the fastening hole 58 a of the vehicle body 58, thereby reducing the vibration-proofing effect due to excessive fastening of the vibration-proof rubber 53. It is preventing. As shown in FIG. 12, the collar 55 may be insert-molded in advance on the anti-vibration rubber 53.

  By the way, when the bolt 59 is tightened in a state where the other end 56b of the collar cylindrical portion 56 is in contact with the peripheral edge of the vehicle body fastening hole 58a, the end area of the other end 56b is small, so that the other end 56b is pressed and FIG. As shown in FIG. 13A, there is a possibility that a crack K occurs in the peripheral edge of the fastening hole 58a, or the other end 56b falls into the fastening hole 58a as shown in FIG.

  Therefore, it is conceivable that the fastening hole 58a is formed large and the other end 56b of the cylindrical portion 56 is directly applied to the bolt 59 while being inserted through the fastening hole 58a. There is a problem that the mounting position of the wiper frame with respect to the vehicle body 58 is displaced.

  Further, as shown in FIG. 14, it is considered that two collars 60 and 61 are assembled to the vibration-proof rubber 53 and a large brim portion 61a is formed on the collar 61 that contacts the periphery of the fastening hole 58a of the vehicle body 58. However, there is a problem that the number of parts, the number of assembly steps, etc. increase, leading to an increase in cost.

  On the other hand, since the bolt 59 is directly screwed into the screw hole 56a provided in the cylindrical portion 56 of the collar 55, when the bolt 59 is tightened or loosened, the bolt 59 is particularly rusted. When it is closed, the collar 55 is rotated around (the anti-vibration rubber 53 and the collar 55 rotate relative to each other), and there is a possibility that the bolt 59 cannot be tightened or loosened.

  The present invention has been made in order to solve the above-described problems, and the object thereof is to reduce the cost and to reliably attach (or remove) the attached member from the attachment member. It is to provide a floating support structure that can be used.

  In order to solve the above-mentioned problem, the invention according to claim 1 includes a cylindrical portion in which an internal thread is formed on an inner peripheral surface, a large-diameter flange portion provided at one end of the cylindrical portion, and the large-diameter flange portion. A collar member having a stopper portion formed on the cylindrical portion side, a cylindrical portion, and first and second flange portions provided at both ends of the cylindrical portion, and the cylindrical portion is disposed on the cylindrical portion. An anti-vibration member attached to the attached member so that the collar member is inserted through the stopper and the stopper portion is positioned between both opening end portions of the attached portion of the attached member; The gist of the present invention is that the attached member is floatingly supported on the attachment member through the vibration-proof member by screwing with a screw.

  According to a second aspect of the present invention, in the floating support structure according to the first aspect, the stopper portion is provided on a circumference of the large-diameter flange portion centering on a central axis of the cylindrical portion. Is the gist.

  The gist of the invention described in claim 3 is that, in the floating support structure according to claim 2, a locking meat portion is interposed between the stopper portion and the opening end portion of the attachment portion. To do.

  According to a fourth aspect of the present invention, in the floating support structure according to the third aspect, a distance from the large-diameter brim portion to the tip end surface of the stopper portion is from the large-diameter brim portion to the lower end surface of the mounting portion. The gist is that it is set larger than the distance.

  According to a fifth aspect of the present invention, in the floating support structure according to any one of the first to fourth aspects, the stopper portion has a contact portion formed by bending both circumferential ends of the stopper portion in the radial direction. The gist is that it is provided.

  A sixth aspect of the present invention is summarized in that, in the floating support structure according to any one of the first to fifth aspects, an outer diameter of the large-diameter brim portion is larger than an inner diameter of the mounting hole.

  The invention according to claim 7 is the floating support structure according to any one of claims 1 to 6, wherein the collar member is provided with a small-diameter brim portion at the other end of the cylindrical portion, The gist is that they are brought into contact with the periphery of the fastening hole of the mounting member.

  The invention according to claim 8 is the floating support structure according to any one of claims 1 to 7, wherein the second flange portion of the vibration isolating member communicates the tube hole of the tube portion with the center of the lower end surface thereof. The tapered recess is provided, and the tapered recess is formed so as to be reduced in diameter toward the first flange portion.

  The invention according to claim 9 is the floating support structure according to claim 7 or 8, wherein the inner diameter of the cylindrical portion is set to be equal to or smaller than the inner diameter of the fastening hole of the mounting member, The gist is that the diameter is set smaller than the outer diameter of the small-diameter brim portion, and the inner diameter of the fastening hole is set smaller than the outer diameter of the small-diameter brim portion.

  According to a tenth aspect of the present invention, in the floating support structure according to any one of the first to ninth aspects, the attached member rotates a pivot shaft for fixing a wiper arm to which a wiper blade is connected at the tip. A pivot holder having a cylindrical bearing portion that can be supported and a holder portion that extends in a radial direction from an axially intermediate portion of the bearing portion, and the attachment member is a front surface wiped by the wiper blade The gist is that the vehicle body has glass.

(Function)
Therefore, according to the first aspect of the present invention, the collar member is integrally formed with the large-diameter flange portion and the cylindrical portion, and the internal thread is formed on the inner peripheral surface of the cylindrical portion. The side washer is not required, and the number of parts and the cost are reduced. Further, a stopper portion is provided in the large-diameter collar portion of the collar member, and the vibration isolating member is mounted on the mounted member so that the stopper portion is positioned between both opening end portions of the mounting portion of the mounted member. . Therefore, when the collar member is fastened and fixed with the screw member, the stopper portion comes into direct or indirect contact with the mounting portion to prevent rotation, and when the screw member is tightened or loosened, the collar member and the vibration isolating member rotate together. do not do.

  According to the invention described in claim 2, in addition to the operation of the invention described in claim 1, the stopper portion is disposed at a position relatively away from the central axis of the cylindrical portion (that is, the central axis of fastening). Therefore, the contact pressure of the stopper portion with respect to the opening end portion of the attachment portion is received small.

  According to the invention described in claim 3, in addition to the action of the invention described in claim 2, between the stopper portion and the opening end portion of the attachment portion, the locking meat portion is interposed, The stopper part and the opening end of the mounting part do not come into direct contact.

  According to invention of Claim 4, in addition to the effect | action of invention of Claim 3, the distance from a large diameter collar part to a stopper part front end surface is from this large diameter collar part to the lower end surface of an attachment part. When the distance is set to be smaller than the distance, the collar member (stopper portion) tries to rotate together when the screw member is tightened (or loosened). The rotational force is not limited to the height of the stopper portion until the mounting portion, so that the anti-vibration member acts as a shearing force between the stopper portion and the mounting portion in the rotational direction, and there is a risk of cracking. . To prevent this, the rotational force at the time of tightening (or loosening) the screw member is received by being compressed and deformed by the locking portion between the stopper portion and the mounting portion in the rotation direction, as in the conventional case. To prevent the application of excessive shear force.

  According to the fifth aspect of the invention, in addition to the effects of the first to fourth aspects of the invention, the contact area between the stopper portion and the opening end of the mounting portion is increased by providing the contact portion. The contact pressure per unit area is reduced.

  According to the invention described in claim 6, in addition to the operation of the invention described in claims 1-5, the outer diameter of the large-diameter brim portion is larger than the inner diameter of the mounting hole, A stopper portion is formed on the cylindrical portion side.

  According to the invention described in claim 7, in addition to the action of the invention described in claims 1-6, the contact pressure on the mounting member is reduced by the small-diameter flange, and the deformation of the mounting member due to excessive tightening is reduced. The collar member is prevented from falling into the fastening hole. Thereby, a fastening hole can be made small and the shift | offset | difference of the attachment position of the to-be-attached member to an attachment member is prevented. Further, the collar member does not fall off from the vibration isolating member when the small diameter brim portion is caught in the tube hole of the cylindrical portion and the vibration isolating member is attached to the attachment member and the attachment member is attached to the attachment member.

According to invention of Claim 8, in addition to the effect | action of the invention of Claims 1-7, a collar member is easily engage | inserted by the vibration isolator.
According to the ninth aspect of the invention, in addition to the action of the seventh aspect of the invention, the contact area of the small-diameter brim portion with respect to the periphery of the fastening hole is a cylindrical portion or the like determined by the thickness of the collar member forming plate. It was larger than the contact area of the end face. In order to increase the contact area of the collar member with the periphery of the fastening hole, it is not necessary to increase the thickness of the collar member.

  According to the invention of the tenth aspect, in addition to the effects of the inventions of the first to ninth aspects, the wiper operation, particularly the vibration of the wiper motor and the vibration at the time of wiping the wiper blade are transmitted to the vehicle body via the pivot holder. It is possible to prevent the positional deviation caused by being amplified as a wiper wiping pattern due to the displacement of the fixed position. In the mounting, the number of parts is small and the workability is excellent.

  As described in detail above, according to the invention described in claims 1 to 10, the cost can be reduced, and the attached member is securely attached to the attachment member (or the attached member is removed from the attachment member). Can do.

  Hereinafter, an embodiment in which the present invention is embodied in a vehicle wiper device will be described with reference to FIGS. FIG. 1 is a front view of an essential part of a vehicle wiper device. FIG. 2 is a plan view of an essential part of the vehicle wiper device.

  The wiper frame 11 of the wiper device of the present embodiment is attached with a wiper motor 12 and wiper link mechanisms 14 and 15 for converting the rotation of the wiper motor 12 into reciprocating rotation of the pivot shaft 13. The pivot shaft 13 is rotatably supported by a pivot holder 16 as a mounted member integrally connected to the wiper frame 11, and a wiper arm (not shown) having a wiper blade (not shown) connected to the tip thereof. ) Is fixed.

  The pivot holder 16 includes a bearing portion 16a that rotatably supports the pivot shaft 13, and a holder portion 16b that extends in a radial direction from an axial intermediate portion of the bearing portion 16a. Two attachment portions 17 and 18 are provided on the holder portion 16b. As shown in FIGS. 3 and 9, each attachment portion 17, 18 is formed with an attachment hole 19 that is partially opened (tip portion). Both side portions of the opening portions of the attachment portions 17 and 18 are defined as opening end portions 17a and 18a, respectively. Anti-vibration rubbers 20 as anti-vibration members are mounted in the respective mounting holes 19.

  As shown in FIGS. 3 to 5, the anti-vibration rubber 20 includes a cylindrical portion 20 a and upper and lower portions as a pair of first and second flange portions of a substantially ring shape formed at both axial ends of the cylindrical portion 20 a. The collar part 20b, 20c is provided. The said cylinder part 20a has the penetration hole 20d as a cylinder hole extended along the axis line. A collar member 21 to be described later is fitted in the insertion hole 20d. The upper brim portion 20b has a pair of annular protrusions 20e and 20f formed on the outer periphery thereof. Both annular protrusions 20e and 20f protrude in opposite directions along the axial direction of the vibration isolating rubber 20. In FIGS. 3 and 4, the annular protrusion 20e protrudes upward, and the annular protrusion 20f protrudes downward. Yes. Further, a circular recess 20g having a diameter larger than that of the insertion hole 20d is provided in the cylindrical portion 20a on the upper flange portion 20b side, and a tapered recess that communicates with the insertion hole 20d at the center of the lower end surface of the lower flange portion 20c. 20h is provided. The tapered recess 20h is formed so as to reduce in diameter toward the upper flange 20b.

  A substantially semi-cylindrical protruding portion 20i (shown in FIG. 9) is formed on a part of the outer periphery of the cylindrical portion 20a between the flange portions 20b and 20c. A connecting portion 20j that protrudes to the outer periphery of the flanges 20b and 20c is formed on the outer periphery of the cylindrical portion 20a on the opposite side of the protruding portion 20i. That is, the outer peripheral surface of the connecting portion 20j is located on the same circumferential surface as the outer peripheral surfaces of the flange portions 20b and 20c. At the center of the outer peripheral surface of the connecting portion 20j, there is provided a notch portion 20k formed by notching from the outer end surface of the lower flange portion 20c to the upper flange portion 20b along the axial direction of the anti-vibration rubber 20. ing. Two locking meat portions 20m are formed on both sides of the cutout portion 20k in the circumferential direction.

  The collar member 21 is press-molded from metal, a cylindrical portion 21a, and a large-diameter brim portion 21b extending in a radial direction at one end of the cylindrical portion 21a (the lower end in FIGS. 3, 4 and 6), A small-diameter brim portion 21c extending in the radial direction is provided at the other end of the cylindrical portion 21a (the upper end in FIGS. 3, 4 and 6). The cylindrical portion 21a has a female screw 21d formed on the inner peripheral surface thereof. The large-diameter brim portion 21b is formed with a slightly smaller diameter than the lower brim portion 20c of the anti-vibration rubber 20, and is a stopper portion that bends toward the small-diameter brim portion 21c along the axial direction of the cylindrical portion 21a on the circumference. 21e is formed.

  The cylindrical portion 21a between the two flange portions 21b and 21c has an outer diameter set to be substantially the same as the inner diameter of the insertion hole 20d of the vibration isolating rubber 20, and its height h (shown in FIG. 4) is The distance (height) t from the bottom surface of the circular recess 20g of the vibration-proof rubber 20 to the outer end surface of the lower brim portion 20c is set to be substantially the same. Further, as shown in FIG. 7, the distance (height) h1 from the inner surface of the large-diameter flange portion 21b to the tip surface of the stopper portion 21e is from the inner surface of the large-diameter flange portion 21b to the inner surface of the lower flange portion 20c. That is, the distance h2 is set larger than the distance h2 (the lower end surfaces of the mounting portions 17 and 18).

  Then, the stopper portion 21e is inserted into the notch portion 20k, and the cylindrical portion 21a is tapered on the lower flange portion 20c side so that the inner surface of the large-diameter flange portion 21b contacts the outer end surface of the lower flange portion 20c. The insertion hole 20d is inserted through the recess 20h. As a result, the collar member 21 is fitted into the anti-vibration rubber 20 so that the small-diameter brim portion 21c fits into the circular recess 20g.

  FIG. 3 is a cross-sectional view of the main part showing a floating support structure in which the holder portion 16b of the pivot holder 16 is attached to the vehicle body (body) 30 via the vibration isolating rubber 20 attached to the attachment portions 17 and 18. FIG. 4 is an exploded cross-sectional view of FIG. As shown in FIG. 3, the outer end surface of the upper flange portion 20 b of the anti-vibration rubber 20 attached to the mounting portions 17 and 18 contacts the vehicle body 30, and the fastening holes 30 a and the washers 31 provided in the vehicle body 30. A bolt 32 as a screw member that penetrates the through hole 31 a is screwed into the female screw 21 d of the collar member 21. The upper flange portion 20b of the anti-vibration rubber 20 is compressed and deformed so that the small-diameter flange portion 21c of the collar member 21 abuts the periphery of the fastening hole 30a of the vehicle body 30 by the axial force when the bolt 32 is tightened.

  Further, as shown in FIG. 9, the anti-vibration rubber 20 is mounted in the mounting hole 19 of the pivot holder 16 so that the connecting portion 20j is disposed in the opening of the mounting portion 17 (or 18). . The stopper portion 21e of the collar member 21 is disposed between the opening end portions 17a (or 18a) of the mounting portion 17 (or 18) in the circumferential direction. That is, both the locking meat portions 20m are sandwiched between the stopper portion 21e and the both opening end portions 17a (or 18a). When the collar member 21 is subjected to a rotational force by tightening (or loosening) the bolt 32 in the circumferential direction, the stopper portion 21e has an opening end portion 17a (or 18a) via the locking meat portion 20m. ) And is not rotated with respect to the anti-vibration rubber 20 (or the pivot holder 16).

  Furthermore, in this embodiment, as shown in FIG. 4, the inner diameter R4 of the cylindrical portion 21a of the collar member 21 is set to be equal to or smaller than the inner diameter R1 of the fastening hole 30a of the vehicle body 30, and The outer diameter R3 of the cylindrical portion 21a is set smaller than the outer diameter R2 of the small-diameter flange portion 21c. Moreover, the inner diameter R1 of the fastening hole 30a is set smaller than the outer diameter R2 of the small-diameter flange portion 21c. That is, R4 ≦ R1 <R2 and R3 <R2. As a result, the small-diameter brim portion 21c is radially expanded from the other end of the cylindrical portion 21a so as to be larger than the thickness of the collar member 21 and the contact area with the periphery of the fastening hole 30a of the vehicle body 30 is increased. The Further, since the outer diameter R2 of the small-diameter brim portion 21c is set to be larger than the outer diameter R3 of the cylindrical portion 21a of the collar member 21 (that is, the inner diameter of the insertion hole 20d) R3, the collar fitted into the anti-vibration rubber 20 The member 21 is prevented from easily coming out of the vibration isolating rubber 20. However, considering the fitting of the collar member 21 into the vibration isolating rubber 20, the outer diameter R2 of the small-diameter flange 21c is set to a size such that the collar member 21 can be fitted into the vibration isolating rubber 20.

Hereinafter, the characteristics of the floating support structure of this embodiment will be described.
(1) Since the collar member 21 has a large-diameter flange portion 21b and a cylindrical portion 21a formed integrally, and a female screw 21d is formed on the inner peripheral surface of the cylindrical portion 21a, a nut and a washer on the nut side are unnecessary. Thus, the number of parts and the cost are reduced. Further, a stopper 21e is provided on the large-diameter flange 21b of the collar member 21, and the anti-vibration rubber 20 is positioned between the opening ends 17a (or 18a) of the mounting portion 17 (or 18). It is attached to the pivot holder 16 so that it does. Accordingly, when the collar member 21 is fastened and fixed with the bolt 32, the stopper portion 21e directly or indirectly contacts the mounting portion 17 (or 18) to prevent rotation, and when the bolt 32 is tightened or loosened, the collar member 21 And the anti-vibration rubber 20 does not rotate. As a result, the pivot holder 16 can be securely attached to the vehicle body 30 (or removed from the vehicle body 30).

  (2) The collar member 21 is provided with a small-diameter brim portion 21c at the other end of the cylindrical portion 21a. The contact diameter of the collar member 21 to the vehicle body 30 is reduced by the small diameter flange portion 21c, and deformation of the vehicle body 30 due to excessive tightening and dropping of the collar member 21 into the fastening hole 30a can be prevented. Thereby, the fastening hole 30a can be made small, and the shift | offset | difference of the attachment position of the pivot holder 16 to the vehicle body 30 is prevented. Further, when the small-diameter brim portion 21c is caught in the circular recess 20g in the insertion hole 20d and the vibration isolator 20 is attached to the pivot holder 16 and the pivot holder 16 is attached to the vehicle body 30, the collar member 21 is anti-vibration rubber. Does not fall off from 20. As a result, the mounting workability can be improved.

  (3) The inner diameter R4 of the cylindrical portion 21a is set equal to or smaller than the inner diameter R1 of the fastening hole 30a of the vehicle body 30, and the outer diameter R3 of the cylindrical portion 21a is set smaller than the outer diameter R2 of the small-diameter flange portion 21c. . The inner diameter R1 of the fastening hole 30a is set smaller than the outer diameter R2 of the small-diameter flange portion 21c. Therefore, the contact area of the small-diameter flange 21c with respect to the periphery of the fastening hole 30a is made larger than the contact area of the other end surface of the cylindrical part 21a determined by the thickness of the collar member 21. In order to increase the contact area of the collar member 21 with the periphery of the fastening hole 30a, it is not necessary to increase the thickness of the collar member 21 formed. As a result, the formation thickness of the collar member 21 is reduced, which leads to cost reduction.

  (4) The stopper portion 21e is provided on the circumference of the large-diameter flange portion 21b with the central axis of the cylindrical portion 21a as the center. Accordingly, the stopper portion 21e is disposed at a position relatively distant from the central axis line (that is, the fastening central axis line) of the cylindrical portion 21a, so that the opening end portion 17a (or 18a) of the mounting portion 17 (or 18) is disposed. The contact pressure of the stopper portion 21e can be reduced.

  (5) Since the locking meat portion 20m is interposed between the stopper portion 21e and the opening end portion 17a (or 18a) of the mounting portion 17 (or 18), the stopper portion 21e and the mounting portion 17 (or 18) is not in direct contact with the open end 17a (or 18a. As a result, the metal contact sound caused by the direct contact between the stopper 21e and the open end 17a (or 18a) of the mounting portion 17 (or 18). Generation of (abnormal noise) can be prevented.

  (6) The distance h1 from the large-diameter brim portion 21b to the tip end surface of the stopper portion 21e is set to be larger than the distance h2 from the large-diameter brim portion 21b to the lower end surface of the mounting portion 17 (or 18). That is, h1> h2. Therefore, when h1 <h2, when the bolt 32 is tightened (or loosened), the collar member 21 (stopper portion 21e) rotates and rotates together, but the rotational force of the stopper portion 21e Since the height does not reach the height up to the mounting portion 17 (or 18), the anti-vibration rubber 20 acts as a shearing force between the stopper portion 21e in the rotation direction and the mounting portion 17 (or 18). There is a risk of cracking. To prevent this, the rotational force when tightening (or loosening) the bolt 32 is applied between the stopper portion 21e and the opening end portion 17a (or 18a) of the mounting portion 17 (or 18) in the rotational direction. The retaining meat portion 20m is compressed and deformed and received so that the conventional shearing force is not applied. As a result, the locking meat portion 20m is acted on by the shearing force between the stopper portion 21e and the mounting portion 17 (or 18), and damage to the antivibration rubber 20 due to the occurrence of cracks can be prevented.

  (7) The present invention is embodied in a wiper device. Therefore, the wiper operation, particularly the wiper motor vibration and the wiper blade wiping vibration are transmitted to the vehicle body 30 via the pivot holder 16 and amplified as a wiper wiping pattern due to the displacement of the fixed position. Can be prevented. In the mounting, the number of parts is small and the workability is excellent.

The embodiment of the present invention may be modified as follows.
As shown in FIG. 10, the stopper portion 21e may be provided with contact portions 21f formed by bending both end portions in the circumferential direction of the stopper portion 21e in the radial direction. In this case, by providing the contact portion 21f, the contact area between the stopper portion 21e and the opening end portion 17a (or 18a) of the mounting portion 17 (or 18) is increased, and the contact pressure per unit area is reduced. Is done. Accordingly, when the bolt 32 is tightened (or loosened), the locking portion 20m between the stopper portion 21e and the opening end portion 17a (or 18a) of the mounting portion 17 (or 18) in the rotation direction thereof is used. Although it is received by being compressed and deformed, the amount of compressive deformation per unit area can be reduced by increasing the receiving area.

  In the above embodiment, the large-diameter brim portion 21b is formed to be slightly smaller in diameter than the lower brim portion 20c of the anti-vibration rubber 20, but the large-diameter brim portion 21b has the same diameter as the lower brim portion 20c of the anti-vibration rubber 20. You may form in.

The upper and lower brim portions 20b and 20c of the anti-vibration rubber 20 do not have to be circular when viewed from the plane, and may have other shapes.
O The protruding portion 20i of the vibration isolating rubber 20 may be omitted.

The washer 31 may be formed integrally with the bolt 32. Further, the washer 31 may be omitted.
As the vibration isolating member 20, a resin material may be used instead of rubber.

  The present invention may be embodied in devices other than the wiper device.

The principal part front view of the wiper apparatus for vehicles. The principal part top view of the wiper apparatus for vehicles similarly. Sectional drawing which shows the floating support structure of this embodiment. The disassembled sectional view which similarly shows a floating support structure. The perspective view of the vibration isolator of this embodiment. The perspective view of the color member of this embodiment. The front view of the vibration isolator with which the color member was inserted. The bottom view of the vibration isolator in which the collar member was similarly inserted. AA line sectional view in Drawing 3 showing a floating support structure. Sectional drawing which shows the floating support structure of another example. Sectional drawing which shows the conventional floating support structure. Sectional drawing when the conventional collar member and the vibration isolating member are integrated. (A) and (b) are principal part enlarged views which show the conventional floating support structure. Sectional drawing of the vibration proof member by which the conventional color member was inserted.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 13 ... Pivot shaft, 16 ... Pivot holder as a to-be-attached member, 16a ... Bearing part, 16b ... Holder part, 17, 18 ... Mounting part, 17a, 18a ... Opening end part, 19 ... Mounting hole, 20 ... Anti-vibration member Anti-vibration rubber, 20a ... cylindrical part, 20b ... upper brim part as first brim part, 20c ... lower brim part as second brim part, 20d ... insertion hole as cylindrical hole, 20h ... tapered concave part, 20m: Locking meat part, 21 ... Collar member, 21a ... Cylindrical part, 21b ... Large diameter collar part, 21c ... Small diameter collar part, 21d ... Female screw, 21e ... Stopper part, 21f ... Contact part, 30 ... As mounting member Vehicle body, 30a ... fastening hole, 32 ... bolt as a screw member.

Claims (10)

A collar member having a cylindrical portion formed with an internal thread on the inner peripheral surface, a large-diameter flange portion provided at one end of the cylindrical portion, and a stopper portion formed on the cylindrical portion side of the large-diameter flange portion;
A cylindrical portion, and first and second flange portions provided at both ends of the cylindrical portion; the collar portion is inserted into the cylindrical portion through the cylindrical portion; and the stopper portion is attached to the attached member. An anti-vibration member attached to the attached member so as to be positioned between both opening end portions of the attachment portion,
A floating support structure, wherein a screw member (32) is screwed into the female screw, and the attached member is floatingly supported on the attachment member via the vibration isolating member. The floating support structure according to claim 1,
The floating support structure, wherein the stopper portion is provided on a circumference of the large-diameter brim portion centered on a central axis of the cylindrical portion. The floating support structure according to claim 2,
A floating support structure, wherein a locking meat portion is interposed between the stopper portion and the opening end portion of the attachment portion. The floating support structure according to claim 3,
The floating support structure, wherein a distance from the large-diameter brim portion to the tip end surface of the stopper portion is set larger than a distance from the large-diameter brim portion to the lower end surface of the mounting portion. The floating support structure according to any one of claims 1 to 4,
The floating support structure, wherein the stopper portion is provided with a contact portion formed by bending both ends in the circumferential direction of the stopper portion in a radial direction. The floating support structure according to any one of claims 1 to 5,
The floating support structure according to claim 1, wherein an outer diameter of the large-diameter brim portion is larger than an inner diameter of an attachment hole formed in the attached member and attached with the vibration isolating member. The floating support structure according to any one of claims 1 to 6,
The collar member is provided with a small-diameter flange at the other end of the cylindrical portion, and the small-diameter flange is brought into contact with the periphery of the fastening hole of the mounting member. The floating support structure according to any one of claims 1 to 7,
The second flange portion of the vibration isolating member is provided with a tapered concave portion communicating with the cylindrical hole of the cylindrical portion at the center of the lower end surface, and the tapered concave portion is reduced in diameter toward the first flange portion side. Floating support structure characterized by being formed in. The floating support structure according to claim 7 or 8,
The inner diameter (R4) of the cylindrical portion is set to be equal to or smaller than the inner diameter (R1) of the fastening hole of the mounting member, and the outer diameter (R3) of the cylindrical portion is smaller than the outer diameter (R2) of the small diameter flange portion. The floating support structure is characterized in that it is set smaller and an inner diameter (R1) of the fastening hole is set smaller than an outer diameter (R2) of the small-diameter brim portion. The floating support structure according to any one of claims 1 to 9,
The attached member includes a cylindrical bearing portion that rotatably supports a pivot shaft for fixing a wiper arm to which a wiper blade is connected to a tip end, and a radial direction extending from an axially intermediate portion of the bearing portion. A pivot holder having a holder part,
The floating support structure, wherein the attachment member is a vehicle body having a windshield wiped by the wiper blade.

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