JP2008254552A - Door mirror base fitting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably fix a base and a cover base to each other in a two-piece type mirror base of a vehicular door mirror. <P>SOLUTION: A base 15 is inserted from a free end side opening part 13 of a cover base 16 in its internal space 22, and screwing bosses 17b, 19b of the base 15 are supported by fitting seats 42, 44 of the cover base 16. Screw shafts 17a, 19a of the screwing bosses 17b, 19b are inclined with respect to a mirror turning shaft L in the direction in which a base end side opening part 18 of the cover base 16 is opened. Screws 17, 19 are inserted from the base end side opening part 18 of the cover base 16, the screws 17, 19 are screwed in screw holes 17c, 19c of the screwing bosses 17b, 19b through holes 42a, 44a of the fitting seats 42, 44 by using a tool to screw and fix the base 15 and the cover base 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a structure for attaching a base and a cover base (also referred to as “base cover”) to each other in a so-called two-piece type mirror base of a vehicle door mirror, and the base and the cover base can be securely fixed to each other. Is.

  The two-piece type mirror base of the vehicle door mirror has a mirror fixing part (part fixed to the vehicle body door) that rotatably supports a mirror rotating part (part constituted by a mirror housing or the like). It is composed of a base and a cover base made of plastic or the like that covers the base, and is distinguished from a so-called one-piece type mirror base that does not have a cover base (that is, the base is directly exposed to the outside world). is there.

As a conventional mounting structure of a base and a cover base in a two-piece type vehicle door mirror, there is one described in Patent Document 1 below. In this vehicle door mirror, the base is inserted into the interior space from the base end side opening of the cover base (the opening on the side attached to the vehicle body door) and the base is connected to each other by covering the base with the cover base. It is fixed to the door panel of the vehicle. The base and the cover base are fixed to the cover base on the side far from the door panel, with the screw shaft parallel to the mirror rotation shaft and screwed to each other on the side close to the door panel with the mirror rotation shaft in between. The prevention hooks are connected to each other by hooking and locking the hooks formed on the base.
Japanese Utility Model Publication No. 6-33739 (FIG. 1)

  According to the structure described in Patent Document 1, since the base and the cover base are only locked by the hooks on the side far from the door panel, the mounting state is unstable, such as rattling of the cover base. . In order to solve this problem, it is conceivable to screw the base and cover base together on the side far from the door panel, but the side of the outside of the cover base (the side far from the door panel) is for design reasons. It is formed so as to cover the mirror rotation surface (the surface where the mirror fixing part rotates relative to the mirror rotation part) (that is, the upper part of the outer side surface of the cover base protrudes outward from the lower part thereof). In many cases, the side surface is formed so as to approach the mirror rotation axis on the base end side opening side (lower side). For this reason, in such a structure, the corner between the outer side surface of the interior space of the cover base and the mirror rotation surface is narrowed, and the screw shaft is parallel to the mirror rotation axis (perpendicular to the mirror rotation surface) at this point. It was difficult to insert a tool into the inner space from the opening on the base end side of the cover base and screw the base and the cover base to each other. For this reason, it was inevitable to use hooking at this point.

  The present invention solves the problems in the prior art, and even if the corner between the outer side surface of the inner space of the cover base and the mirror rotation surface is narrow, the base and the cover base can be easily connected to each other at this point. It is an object of the present invention to provide a base and cover base mounting structure that can be screwed to each other so that the base and the cover base can be securely fixed to each other.

  The present invention is a structure in which a base end portion is connected and fixed to a vehicle body door, and a free end portion connects and supports a mirror rotating portion so as to be rotatable, and a cover base that covers the base is mutually connected. The base and the cover base are inserted into the base of the cover base in the inner space of the cover base containing the base, and the cover base is relatively close to the vehicle body door. And at least two locations on the far side of the cover base, and at least the screw base of the cover base on the side far from the vehicle body door, the screw shaft is connected to the rotation shaft of the mirror rotation portion. The part-side opening is inclined and arranged in the opening direction.

  Further, the present invention has a structure in which a base end portion is connected and fixed to a vehicle body door and a free end portion rotatably connects and supports the mirror rotating portion and a cover base that covers the base is connected to each other. The cover base has an internal space for accommodating the base, a base end side opening for exposing the base end side of the base accommodated in the internal space, and a free end side for exposing the free end side. An opening, and each mounting seat for supporting and screwing the base in at least two locations on the cover base at a relatively near side and a far side from the body door of the cover base. Each screwing boss supported by each mounting seat in the cover base and screwed is provided, and the base is inserted from the opening on the free end side of the cover base, and each screwing boss is attached to each of the mounting bases. To the seat Each screw is inserted through the opening on the base end side of the cover base and screwed into the screw bosses through the mounting seats, and the base and the cover base are fixed with screws. At the screwing point of the base on the side far from the vehicle body door, the screw shaft is inclined with respect to the rotation axis of the mirror rotation part in the direction in which the base end side opening is opened. It will be.

  According to the present invention, the screw shaft is inclined in the direction in which the base end side opening is opened with respect to the rotation shaft of the mirror rotation portion at the screwed portion of the cover base far from the vehicle body door. Even if the corner that is sandwiched between the outer side surface of the cover base internal space and the mirror rotation surface is narrow, the outer side surface of the cover base does not get in the way and the tool is inserted from the opening on the base end side. The base and the cover base can be screwed to each other by being inserted into the space. Thereby, the base and the cover base can be reliably fixed to each other.

  According to the present invention, a screw shaft for fixing the base to the vehicle body door is disposed so as to be inclined in a direction in which the base end side opening is opened with respect to the rotation shaft of the mirror rotation portion. An opening for screwing is formed at a location avoiding the screw shaft for fixing the vehicle body door on the base, and a screw and a tool are inserted through the screwing opening to secure the screwing location on the side of the cover base far from the vehicle body door Can be screwed. According to this, since the opening for screwing is formed at a place where the screw shaft for fixing the vehicle body door of the base is avoided, the mirror rotating part of the mirror rotating part is passed through the screwing opening while ensuring the necessary structure for the base. The base and the cover base can be fixed by a screw shaft that is inclined with respect to the rotation shaft.

  According to the present invention, each screw shaft for screwing the base and the cover base to each other can be arranged in parallel with each screw shaft for fixing the base to the vehicle body door. Furthermore, the screw shaft for fixing the packing for closing the base end side opening of the cover base to the base, the screw shaft for screwing the base and the cover base to each other, and the base to the vehicle body door It can arrange | position in parallel with the screw axis | shaft for fixing. According to this, since the screw shafts are parallel, the efficiency of manual or automatic screwing work can be improved. In addition, the screw shafts can be arranged at optimum positions without interfering with each other, and the design becomes easy.

  An embodiment of the present invention will be described. FIG. 1 is an exploded perspective view of a door mirror (for the left side) 10 to which the present invention is applied. 2 to 4 are views showing the assembled door mirror 10, FIG. 2 is a view seen from the front side of the mirror, FIG. 3 is a plan view showing the interior thereof, and FIG. It is arrow sectional drawing. First, an outline of the configuration of the door mirror 10 will be described mainly with reference to FIG. The door mirror 10 includes a mirror fixing portion 12 connected and fixed to an upper portion of a vehicle body door panel 11 (FIGS. 2 and 4), and a mirror rotation connected and supported by the mirror fixing portion 12 so as to be rotatable about a vertical rotation axis L. The moving part 14 is comprised. The mirror fixing portion 12 is configured as a two-piece type in which a base 15 made of an integrally molded product of metal such as zinc die casting is covered with a cover base 16 made of an integrally molded product of plastic such as ABS resin and connected to each other. ing.

  The cover base 16 is formed with an internal space 22 for accommodating the base 15. An upper plate (cover base upper plate) 16 a of the cover base 16 constitutes a mirror rotation surface 29 perpendicular to the rotation axis L of the mirror rotation unit 14. A free end portion opening 13 communicating with the internal space 22 is formed at the center of the cover base upper plate 16a. A base end side opening 18 communicating with the internal space 22 is formed at the lower end of the cover base 16. The surface constituted by the end surface of the base end side opening 18 is formed to be inclined with respect to the rotation axis L in accordance with the inclination of the upper surface of the vehicle body door panel 11 to which the door mirror 10 is attached.

  The vehicle outer side surface 16b of the cover base 16 is slightly covered with the mirror rotation surface 29 for design reasons (that is, the outer side surface 16b of the cover base 16 is on the base end side opening 18 side (lower side)). It is formed so as to approach the mirror rotation axis L (FIG. 4). Therefore, the corner 31 (FIG. 4) sandwiched between the outer side surface 16 b of the inner space 22 of the cover base 16 and the mirror rotation surface 29 is narrow, and is parallel to the mirror rotation axis L (perpendicular to the mirror rotation surface 29). It is difficult to screw the base 15 and the cover base 16 with each other by inserting a tool into the internal space 22 from the base end side opening 18 and screwing the base 15 and the cover base 16 to each other (the outer side surface 16b becomes an obstacle). Therefore, in this embodiment, the screw shafts 17a and 19a for screwing the base 15 and the cover base 16 to each other are arranged in a direction in which the base end side opening 18 is open with respect to the direction parallel to the mirror rotation axis L. It is arranged with an inclination. Thereby, when inserting a tool from the base end part side opening part 18, the outer side surface 16b does not become obstructive, and screwing becomes easy.

  The base 15 is inserted from the free end side opening 13 of the cover base 16 and accommodated in the internal space 22. The base 15 and the cover base 16 are connected and fixed to each other by two screws 17 and 19. At the base end portion 23 (the end portion on the side fixed to the vehicle body door panel 11) of the base 15, one end portions of three stud bolts 25, 26, 27 for fixing the mirror fixing portion 12 to the vehicle body door panel 11 are provided. Screwed and fixed. Each of the screw shafts 25a, 26a, 27a of the stud bolts 25, 26, 27 is a mirror rotating portion so as to be perpendicular to the surface formed by the end surface of the base end side opening 18 (that is, the surface of the vehicle body door panel 11). The base end portion side opening 18 is inclined with respect to the rotation axis L of the fourteen in the direction in which it opens.

  The opening 18 on the base end side of the cover base 16 is closed with a packing 20. The packing 20 is fixed to the base 15 with screws 36. The screw shafts 17a, 19a, 36a, 25a, 26a, 27a of the screws 17, 19, 36 and the stud bolts 25, 26, 27 are arranged in parallel to each other. The packing 20 is formed with a harness pull-out port 24 for pulling out the harness 21 to the outside. From the packing 20, the other end portions of the stud bolts 25, 26, 27 protrude to the outside.

  The mirror rotating unit 14 is a metal frame 28 (FIGS. 3 and 4) that is rotatably connected to a free end 34 (an end on the side to which the mirror rotating unit 14 is connected) of the base 15; A mirror main body 30 (a mirror holder mounted with a mirror plate) mounted on the frame 28 and a plastic housing 32 covering the mirror rotating portion 14 are configured.

  Next, the detailed structure of the cover base 16 is demonstrated with reference to FIG. 5, FIG. 5 is a perspective view seen from the free end side opening 13 side, and FIG. 6 is a perspective view seen from the base end side opening 18 side. The cover base 16 is tapered toward the front of the vehicle in order to reduce wind noise during vehicle travel. The cover base upper plate 16a of the cover base 16 (the narrow portion around the free end side opening 13) is a mirror that rotates relative to the lower surface 14a (FIG. 2) of the base end of the mirror rotating portion 14. The outer peripheral part of the rotation surface 29 is comprised. A step 38 is formed on the upper surface of the inner peripheral edge facing the free end side opening 13 of the cover base upper plate 16a. The thickness of the step 38 is designed to be 1/2 of the general thickness of the cover base upper plate 16a. The step 38 is formed at each part of the entire circumference of the free end side opening 13 (position avoiding the ribs 52, 54, 56, 58 (FIG. 8) of the base 15). As will be described later, the base upper plate 46 (FIG. 7 and the like) of the base 15 is supported by the step 38. A dowel 40 for preventing rattling in the direction along the mirror rotation surface 29 between the base 15 and the cover base 16 is formed at the tip of the step 38 so as to protrude in the inner circumferential direction. In the internal space 22 of the cover base 16, mounting seats 42 and 44 for supporting and screwing the screwing bosses 17b and 19b (FIG. 8 and the like) of the base 15 are positioned mutually in the vehicle longitudinal direction and the vehicle lateral direction. It is formed by shifting. In the mounting seat 42, the base 15 and the cover base 16 are screwed at a position relatively close to the vehicle body door panel 11 (FIGS. 2 and 4). In the mounting seat 44, the base 15 and the cover base 16 are screwed at a position relatively far from the vehicle body door panel 11 (a screwing location far from the vehicle body door). Holes 42a and 44a through which the screws 17 and 19 are passed are formed in the mounting seats 42 and 44.

  Next, the detailed configuration of the base 15 will be described with reference to FIGS. FIG. 7 is a perspective view of the base 15 as viewed obliquely upward parallel to the screw shafts 17a, 19a, 36a, 25a, 26a, and 27a. FIG. 8 is a perspective view of the base 15 of the screw shafts 17a, 19a, 36a, 25a, and 26a. , 27a is a perspective view as seen from a diagonally downward direction, FIG. 9 is a view as seen from arrow B in FIG. 8, FIG. 10 is a side view of the base 15 as seen from a direction parallel to the surface of the base upper plate 46, and FIG. A bottom view of the base 15 viewed from a direction perpendicular to the base upper plate 46, and FIG. 12 is a cross-sectional view taken along the line CC in FIG. The base 15 has a base upper plate 46 at the upper part thereof. The base upper plate 46 closes the free end side opening 13 of the cover base 16, and together with the cover base upper plate 16 a of the cover base 16 (a narrow portion around the free end side opening 13), the mirror rotating portion. The mirror rotation surface 29 perpendicular to the 14 rotation axes L is formed. The general thicknesses of the cover base 16 and the cover base upper plate 16a are designed to be equal. On the upper surface of the base upper plate 46, a rotation support portion 48 that pivotally connects and supports the mirror rotation portion 14 is formed to protrude upward.

  Boss 17b, 19b, 36b, 25b, 26b, 27b of each screw shaft 17a, 19a, 36a, 25a, 26a, 27a is formed in the structure portion 50 on the lower surface of the base upper plate 46. Screw holes 17c, 19c, 36c, 25c, 26c, and 27c are formed in the bosses 17b, 19b, 36b, 25b, 26b, and 27b. Reinforcing ribs 52, 54, 56 and 58 are formed in the structure portion 50 perpendicular to the surface of the base upper plate 46. The side end portions 52 a, 54 a, 56 a, 58 a of the ribs 52, 54, 56, 58 are formed to reach the outer end portion 46 a of the base upper plate 46. On the lower surface of the outer peripheral edge of the base upper plate 46, there are steps 60 that fit into steps 38 (FIG. 5) formed on the upper surface of the inner peripheral edge facing the free end side opening 13 of the cover base upper plate 16a. (Except for the positions of the rib side end portions 52a, 54a, 56a, 58a). The thickness of the step 60 is designed to be ½ of the general thickness of the base upper plate 46. A screwing opening 62 is formed between the ribs 56 and 58, and the screw 19 and the tool are inserted through the screwing opening 62 so that the boss 19b can be screwed. Since the screwing opening 62 is formed between the reinforcing ribs 56 and 58, a decrease in strength of the structure 50 due to the screwing opening 62 being formed is suppressed.

  When assembling the base 15 and the cover base 16 having the above configuration, the base 15 is inserted from the free end side opening 13 of the cover base 16 as shown in FIG. 1, and the free end side opening 13 of the cover base 16 is inserted. The base upper plate 46 of the base 15 is fitted into the base 15. At this time, since the step 38 on the upper surface of the inner peripheral edge of the cover base upper plate 16a and the step 60 on the lower surface of the outer peripheral edge of the base upper plate 46 are fitted and supported (FIG. 16), the cover base upper plate 16a. The upper surface of the base plate 46 and the upper surface of the base upper plate 46 constitute a continuous mirror rotation surface 29 having no step. At this time, the screwing bosses 17b and 19b of the base 15 are supported by the mounting seats 42 and 44 of the cover base 16, respectively.

  While maintaining this state, the screw shafts 17a, 19a, 36a, 25a, 26a, and 27a are turned substantially vertically upward (turned) with a jig (not shown) for fastening the base 15 and the cover base 16 to each other. The moving shaft L is supported in a tilted state. Then, screws 17 and 19 are inserted from the opening 18 on the base end side of the cover base 16, and the screws 17 and 19 are inserted through the holes 42a and 44a of the mounting seats 42 and 44 using a tool. The base 15 and the cover base 16 are fixed by screwing into the screw holes 17c and 19c of 19b. Next, similarly, the stud bolts 25, 26, 27 are inserted from the opening 18 on the base end side of the cover base 16, and the stud bolts 25, 26, 27 are inserted into the screw holes 25c of the bosses 25b, 26b, 27b using a tool. Screw into 26c and 27c, respectively. Further, the packing 20 is fitted into the base end side opening 18 of the cover base 16, and the screw 36 is screwed into the screw hole 36c of the boss 36b through the hole 20a (FIG. 1) formed in the packing 20, so that the packing 20 is fixed to the base end portion. Fix to the side opening 18. Since the screw shafts 17a, 19a, 36a, 25a, 26a, and 27a are parallel to each other, the operator can efficiently perform the screwing operation of the screws 17, 19, 25, 26, 27, and 36 in the same posture. .

  FIG. 13 shows a state in which the base 15 and the cover base 16 are fixed with screws 17 and 19, and stud bolts 25, 26 and 27 are attached to the base 15. 14 is a cross-sectional view taken along the line DD in FIG. 13, and FIG. 15 is a cross-sectional view taken along the line EE in FIG. As described above, the vehicle outer side surface 16 b of the cover base 16 is formed so as to slightly cover the mirror rotation surface 29, so that it is sandwiched between the outer side surface 16 b of the inner space 22 of the cover base 16 and the mirror rotation surface 29. The entering corner 31 (FIG. 4) is narrow. For this reason, the screw shaft 19a that fixes the base 15 and the cover base 16 at a position relatively far from the vehicle body door panel 11 (a position closer to the outer side surface 16b with respect to the rotation axis L) is parallel to the rotation axis L. The outer side surface 16b gets in the way, and the tool cannot be inserted into the internal space 22 along the screw shaft 19a. On the other hand, according to FIG. 14, since the screw shaft 19a is inclined with respect to the rotation shaft L in the direction in which the base end side opening 18 is opened, the tool is moved along the screw shaft 19a. The space 22 can be inserted with a margin. Therefore, the screwing operation of the screw 19 can be performed easily and reliably.

  As shown in FIG. 15, the screw shaft 17 a that fixes the base 15 and the cover base 16 at a position relatively close to the vehicle body door panel 11 (a position closer to the inner side surface 16 c with respect to the rotation shaft L). The tool 17 can be easily and reliably screwed in by inserting the tool into the internal space 22 from the proximal end side opening 18 with a margin. In this manner, the base 15 and the cover base 16 are screwed at two positions shifted in the vehicle front-rear direction and the vehicle left-right direction, so that the base 15 and the cover base 16 can be securely fixed without rattling. it can.

  FIG. 16 shows an enlarged view of a portion F in FIG. Since the cover base upper plate 16a and the base upper plate 46 are fitted in steps 38 and 60 at each part of the entire circumference, the mirror rotation surface 29 constituted by the upper surface of the cover base upper plate 16a and the upper surface of the base upper plate 46 is It is flat, and no step is unexpectedly formed at the boundary portion between the cover base upper plate 16a and the base upper plate 46. Therefore, the gap distance between the lower surface 14a of the base end portion 14a (FIG. 2) of the mirror rotating portion 14 and the mirror rotating surface 29 of the mirror fixing portion 12 varies from the design value due to the unexpectedly generated step and is generated in the gap. It is prevented that the wind noise is increased or the appearance is deteriorated due to the unexpected level difference. In addition, since the steps 38 and 60 are fitted together, the total thickness of the steps 38 and 60 at the fitting locations can be made equal to the general thickness of the cover base upper plate 16a and the base upper plate 46. Further, since the dowel 40 is formed at the tip of the step 38 of the cover base upper plate 16a so as to protrude in the inner circumferential direction, the backlash in the direction along the mirror rotation surface 29 between the base 15 and the cover base 16 is rattled. Is also prevented. In particular, in this embodiment, since the base 15 and the cover base 16 are screwed at two positions shifted in the vehicle front-rear direction and the vehicle left-right direction, the base 15 and the cover base 16 are stably connected to each other. Therefore, the step of the mirror rotation surface 29 and the backlash between the base 15 and the cover base 16 can be prevented more effectively.

  In the above-described embodiment, the base 15 and the cover base 16 are connected by the two screws 17 and 19. However, they can be connected by a larger number of screws.

It is a disassembled perspective view of the door mirror (for left side) to which this invention was applied. It is the figure which assembled the door mirror of FIG. 1 and was seen from the front side of the mirror. FIG. 3 is a plan view showing the interior of the door mirror of FIG. 2 in a transparent manner. It is AA arrow sectional drawing of FIG. It is the perspective view which looked at the cover base from the free end side opening part side. It is the perspective view which looked at the cover base from the base end side opening part side. It is the perspective view which looked at the base from the diagonally upward direction parallel to each screw axis. It is the perspective view which looked at the base from the diagonally downward direction parallel to each screw axis. It is a B arrow view of FIG. It is the side view which looked at the base from the direction parallel to the base upper plate. It is the bottom view which looked at the base from the direction perpendicular to the base upper plate. It is CC sectional view taken on the line of FIG. It is a figure which shows the state which fixed the base and the cover base with the screw | thread, and also attached the stud bolt to the base, and is the perspective view seen from the diagonally downward direction parallel to each screw axis. It is DD sectional view taken on the line of FIG. It is EE arrow sectional drawing of FIG. It is an enlarged view of the F section of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Door mirror, 11 ... Car body door panel, 12 ... Mirror fixing | fixed part, 13 ... Free end side opening part, 14 ... Mirror rotation part, 15 ... Base, 16 ... Cover base, 16a ... Cover base upper board, 16b ... Cover Outer side surface of the base, 16c ... Inner side surface of the cover base, 17, 19 ... Screws for screwing the base and the cover base to each other, 17a, 19a ... For screwing the base and the cover base to each other Screw shaft, 17b, 19b ... screw fixing boss, 18 ... base end side opening, 20 ... packing, 22 ... internal space, 23 ... base end portion, 25, 26, 27 ... stud bolt (base Screws for fixing to the vehicle body door), 25a, 26a, 27a ... Screw shaft for fixing the base to the vehicle body door, 29 ... Mirror rotation surface, 31 ... Corner, 34 ... Freedom of base 36, a screw for fixing the packing to the base, 36a, a screw shaft for fixing the packing to the base, 38 ... a step on the upper surface of the inner peripheral edge facing the opening on the free end side of the cover base upper plate, 40 ... Dowels, 42 ... Mounting seat (screwed place on the side closer to the vehicle body door), 44 ... Mounting seat (screwed place on the side far from the vehicle body door), 46 ... Base upper plate, 46a ... Outer end of the base upper plate , 52, 54, 56, 58 ... ribs, 52a, 54a, 56a, 58a ... rib side ends, 60 ... step on the lower surface of the outer peripheral edge of the base upper plate, 62 ... opening for screwing the base, L ... Rotation axis

Claims (6)

A base end portion is connected and fixed to a vehicle body door, and a free end portion is a structure for connecting and supporting a mirror rotating portion rotatably and a cover base that covers the base.
The base and the cover base are inserted into the base of the cover base in the inner space of the cover base containing the base, and the cover base is relatively close to the vehicle body door. And fasten with screws at least two places on the far side,
At least at the screwing point of the cover base on the side far from the vehicle body door, the screw shaft is inclined with respect to the rotating shaft of the mirror rotating portion in the direction in which the base end side opening is open. A door mirror base mounting structure.   A screw shaft for fixing the base to the vehicle body door is inclined with respect to the rotation axis of the mirror rotation unit in a direction in which the opening on the base end side is open, An opening for screwing is formed at a place avoiding the screw shaft for fixing the vehicle body door, and a screw and a tool are inserted through the opening for screwing, and the screwing portion of the cover base far from the vehicle body door is screwed. The door mirror base mounting structure according to claim 1.   The door mirror base mounting according to claim 1 or 2, wherein each screw shaft for screwing the base and the cover base to each other is arranged in parallel with each screw shaft for fixing the base to the vehicle body door. Construction.   A screw shaft for fixing the packing for closing the base end side opening of the cover base to the base, a screw shaft for screwing the base and the cover base to each other, and the base to the vehicle body door The door mirror base mounting structure according to claim 3, wherein the door mirror base mounting structure is arranged in parallel with a screw shaft for the purpose. A base end portion is connected and fixed to a vehicle body door, and a free end portion is a structure for connecting and supporting a mirror rotating portion rotatably and a cover base that covers the base.
The cover base has an internal space for accommodating the base, a base end side opening for exposing the base end side of the base accommodated in the internal space, and a free end side opening for exposing the free end side. And a mounting seat for supporting and screwing the base in at least two locations on the cover base at a relatively near side and a far side from the body door of the cover base,
The base includes screwing bosses supported and screwed to mounting seats in the cover base,
The base is inserted from the free end side opening of the cover base to support the screw bosses on the mounting seats, and the screws are inserted from the base end side opening of the cover base. Screw the base to the cover base by screwing into the screw bosses through the mounting seats,
At least at the screwing point of the cover base on the side far from the vehicle body door, the screw shaft is inclined with respect to the rotating shaft of the mirror rotating portion in the direction in which the base end side opening is open. A door mirror base mounting structure.   The door mirror base mounting structure according to any one of claims 1 to 5, wherein an outer side surface of the cover base is formed so as to approach a mirror rotation shaft on a base end side opening side thereof.

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