JP2014234112A - Mirror surface adjustment unit structure for vehicular door mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To work without deforming a fitting part, and without strong force, when a mirror is supported to a mirror surface adjustment unit.SOLUTION: A pivot side contact part 42c of a pivot ball 42 is inserted into a pivot fitting part from a notch of the pivot fitting part, and a fitting part side contact part of the pivot fitting part is inserted into a groove 42b of the pivot ball 42, in the state, the pivot ball 42 and the pivot fitting part are rotated relatively, for aligning the pivot side contact part 42c and the fitting part side contact part. In the state, the pivot ball 42 is attached thereto.

Description

  The present invention relates to a mirror surface adjustment unit structure of a vehicle door mirror attached to, for example, an automobile.

  Conventionally, as a door mirror for a vehicle, there is known a mirror equipped with a mirror, a mirror holder for holding the mirror, a mirror surface adjustment unit for adjusting the angle of the mirror, and a visor to which the mirror surface adjustment unit is fixed. (For example, see Patent Documents 1 and 2). Since it is necessary to adjust the angle of the mirror in the vertical and horizontal directions, the mirror is generally supported by a mirror surface adjustment unit with a pivot structure.

  In Patent Document 1, a pivot sphere is provided in the mirror surface adjustment unit, while a concave fitting portion into which the pivot sphere is fitted is provided on the back surface of the mirror. The fitting portion is formed so as to surround the pivot ball, and can be fitted by pushing the pivot ball into the fitting portion. In Patent Document 2, similarly to Patent Document 1, the pivot ball is pushed into the fitting portion.

JP-A-7-104168 JP 2001-151021 A

  However, in Patent Documents 1 and 2, the fitting portion is formed so as to surround more than half of the pivot sphere so as not to be easily detached after the pivot sphere is fitted to the fitting portion. For this reason, when the pivot ball is fitted into the fitting portion, it is necessary to allow the insertion of the pivot ball by strongly pushing the pivot ball into the fitting portion to temporarily elastically deform the fitting portion in the enlargement direction. is there. Then, when the pivot ball is completely inserted, the shape of the fitting portion is restored, and the pivot ball is fitted into the fitting portion. Although the fitting portion is elastically deformed in this way, it is difficult to completely restore the shape of the fitting portion once expanded to the original shape. It is conceivable that a minute gap is generated between the inner surface of the fitting portion. This gap is directly connected to the backlash of the mirror and causes, for example, mirror vibration when the vehicle travels, and deteriorates the rear visibility.

  In addition, the fitting portion is tightly formed because it should not be easily detached when the pivot ball is fitted to the fitting portion. Therefore, when the pivot ball is fitted into the fitting portion, the force when the pivot ball is pushed into the fitting portion is increased. In recent years, anti-glare liquid crystals and heaters are sometimes incorporated in mirrors, and the force when pushing the pivot ball into the fitting portion may act on the liquid crystal panels and heaters, causing damage to them.

  The present invention has been made in view of the above points, and the object of the present invention is to avoid the need for strong force without deforming the fitting portion when the mirror is supported by the mirror surface adjustment unit. It is to be able to work.

To achieve the above object, the first invention provides a mirror surface adjustment unit for a vehicle door mirror, comprising a mirror, a mirror holder to which the mirror is mounted, and a mirror surface adjustment unit for adjusting the angle of the mirror. In structure
One of the mirror holder and the mirror surface adjustment unit is provided with a pivot ball, and the other is provided with a fitting portion into which the pivot ball is inserted and fitted from the front end side in the protruding direction of the pivot ball. Through the mirror holder so that the mirror can be tilted around a horizontal axis and a vertical axis extending in the vehicle width direction in a state in which the pivot ball is fitted into the fitting portion. Supported by the mirror surface adjustment unit,
On the outer surface of the pivot sphere, a plurality of grooves extending from the distal end side to the proximal end side in the projecting direction of the pivot sphere are provided at intervals in the circumferential direction of the pivot sphere. A pivot-side contact portion that contacts the inner surface of the fitting portion is provided,
The fitting portion is provided with a plurality of fitting portion side contact portions that contact the pivot side contact portion, corresponding to the pivot side contact portion, and between the adjacent fitting portion side contact portions. A notch portion is provided for enabling the pivot side contact portion to be inserted into the fitting portion,
The pivot side contact portion of the pivot ball is inserted into the fitting portion from the notch portion of the fitting portion, and the fitting portion side contact portion of the fitting portion is inserted into the groove of the pivot ball. In this state, the pivot sphere and the fitting portion are relatively rotated around an axis extending in the protruding direction of the pivot sphere so that the pivot side contact portion and the fitting portion side contact portion are aligned with each other. A pivot ball is fitted into the fitting portion.

  According to this configuration, when the pivot portion is fitted to the fitting portion, the pivot-side contact portion of the pivot ball is inserted into the fitting portion from the notch portion of the fitting portion, and the fitting portion is further fitted. By inserting the part-side contact portion into the groove of the pivot ball, the pivot ball can be inserted into the fitting portion without forcibly expanding the diameter of the fitting portion.

  And the pivot side contact part and groove | channel of a pivot ball | bowl are alternately formed in the circumferential direction, and the notch part of a fitting part and the fitting part side contact part are alternately formed in the circumferential direction. Therefore, after inserting the pivot ball into the fitting portion, the pivot ball and the fitting portion are rotated relative to each other around an axis extending in the projecting direction of the pivot ball, so that an unreasonable force is not applied to each portion. It becomes possible to make a side contact part and a fitting part side contact part correspond. When the pivot side contact portion and the fitting portion side contact portion are matched, both contact portions come into contact with each other. At this time, since an excessive force is not applied to each part as described above, the shapes of the both contact parts are maintained as designed, and thus rattling is suppressed. Further, when the mirror is provided with a liquid crystal, a heater, or the like, the damage is suppressed.

According to a second invention, in the first invention,
The mirror holder and the mirror surface adjustment unit have a rotation restricting portion for restricting relative rotation of the pivot ball and the fitting portion in a state where the pivot side contact portion and the fitting portion side contact portion coincide with each other. It is provided.

  According to this configuration, the pivot ball and the fitting portion are restricted from rotating relative to each other in a state where the pivot side contact portion and the fitting portion side contact portion coincide with each other. The ball is prevented from being detached from the fitting portion.

According to a third invention, in the first or second invention,
The pivot side engaging part and the fitting part side contact part are engaged with the pivot side engaging part and the fitting part side engaging part in a state in which the pivot side contact part and the fitting part side contact part coincide with each other. Each part is provided.

  According to this configuration, since the pivot side engaging portion and the fitting portion side engaging portion are engaged in a state where the pivot side contact portion and the fitting portion side contact portion are matched, it is confirmed that both contact portions are matched. The assembly operator can easily grasp and perform the assembly work reliably.

  According to the first invention, on the outer surface of the pivot ball, a plurality of grooves are provided at intervals in the circumferential direction, and a pivot-side contact portion that contacts the inner surface of the fitting portion is provided between adjacent grooves, A fitting part side contact part that contacts the pivot side contact part is provided at the joint part, and a notch part for inserting the pivot side contact part into the fitting part is provided between adjacent fitting part side contact parts. The pivot side contact portion of the pivot ball is inserted into the fitting portion from the notch portion of the fitting portion, and the fitting portion side contact portion of the fitting portion is inserted into the groove of the pivot ball. The pivot ball can be fitted to the fitting portion by relatively rotating the joint portion so that the pivot side contact portion and the fitting portion side contact portion coincide with each other. As a result, when the mirror is supported by the mirror surface adjustment unit, the work can be performed without forcibly deforming the fitting portion, so that the pivot ball does not play and the mirror vibration can be suppressed. In addition, since the work can be performed without using a strong force, the liquid crystal and the heater can be prevented from being damaged when the mirror is provided.

  According to the second aspect of the invention, since the pivot ball and the fitting portion can be controlled in relative rotation with the pivot side contact portion and the fitting portion side contact portion being matched, the pivot ball is removed from the fitting portion. It can be prevented from leaving.

  According to the third invention, the pivot-side contact portion and the fitting portion-side contact portion are provided with the pivot-side engaging portion and the fitting portion-side engaging portion that engage with each other in a state where both contact portions coincide with each other. The assembly operator can easily grasp that the two contact portions are matched, and the assembly operation can be performed reliably.

It is a perspective view of the vehicle front part to which the vehicle door mirror which concerns on embodiment was attached. It is a disassembled perspective view of the door mirror for vehicles. It is the perspective view which looked at the mirror holder from the assembly | attachment side of the mirror surface adjustment unit. It is a front view of a mirror holder. It is a perspective view which expands and shows the pivot fitting part vicinity of a mirror holder. It is a perspective view of the mirror holder with which the mirror surface adjustment unit was assembled. It is the perspective view which looked at the mirror surface adjustment unit from the side by which a mirror holder is assembled | attached. It is a front view of a mirror surface adjustment unit. It is a perspective view which expands and shows the pivot sphere vicinity of a mirror surface adjustment unit. It is the figure which looked at the visor from back. It is a figure explaining the point which attaches a mirror surface adjustment unit to a mirror holder, (a) is in the state where a pivot ball was inserted in a pivot fitting part, and (b) rotates a mirror surface adjustment unit from the state of (a). The assembled state in which the pivot ball is prevented from coming off the pivot fitting portion is shown. It is FIG. 2 equivalent view which concerns on the modification 1 of embodiment. FIG. 6 is a view corresponding to FIG. 3 according to a second modification of the embodiment. FIG. 10 is an enlarged view of the vicinity of an upper adjustment gear connecting portion of a mirror holder according to a second modification of the embodiment. FIG. 15 is a diagram corresponding to FIG. 14 according to Modification 3 of the embodiment. FIG. 9 is a diagram corresponding to FIG. 8 according to Modification 4 of the embodiment. FIG. 10 is a view corresponding to FIG. 9 according to Modification 5 of the embodiment. FIG. 6 is a view corresponding to FIG. 5 according to Modification 5 of the embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 is a perspective view showing a vehicle side portion to which a vehicle door mirror 1 according to an embodiment of the present invention is attached. FIG. 2 is an exploded perspective view of the vehicle door mirror 1. This vehicle door mirror 1 is used for a driver's rear confirmation, and is attached to the front part of the outer panel of the front door D of a vehicle, as shown in FIG.

  In the description of this embodiment, the front side of the vehicle is simply referred to as “front”, the rear side of the vehicle is simply referred to as “rear”, the left side of the vehicle is simply referred to as “left”, and the right side of the vehicle is simply referred to as “right”. To do. In the following description, the right side door mirror 1 will be mainly described. However, the left side door mirror (not shown) has the same configuration as that of the right side door mirror 1 except that it is bilaterally symmetric. To do.

  As shown in FIG. 2, the vehicle door mirror 1 includes a mirror 2 for rearward confirmation, a mirror holder 3 that holds the mirror 2, a mirror surface adjustment unit 4 that electrically adjusts the angle of the mirror 2, and mirror surface adjustment. A visor 5 to which the unit 4 is fixed, an electric storage unit 6, an under panel 7 that covers a lower part of the visor 5, an upper panel 8 that covers an upper part of the visor 5, and a mirror base 9 are provided.

  The mirror 2 has a shape that is long in the left-right direction. The back surface of the mirror 2 is bonded and fixed to the mirror holder 3. The mirror 2 may be provided with an anti-glare liquid crystal, a heater for heating the mirror 2, or the like. The mirror 2 is held by a visor 5 via a mirror holder 3 and a mirror surface adjustment unit 4.

  The electric storage unit 6 is attached to the visor 5 from the side opposite to the side holding the mirror 2 of the visor 5. An under panel 7 and an upper panel 8 are fixed to the visor 5 so as to cover the electric storage unit 6. The mirror base 9 is fixed to the front door D. The lower end of the visor 5 is attached to the upper part of the mirror base 9. In this state, the visor 5 can be used by the operation of the electric storage unit 6 (the state shown in FIG. 1), and the storage state (the visor 5 is rearward). In a state where it has been rotated to the right).

  The mirror holder 3 is a plate-like member made of a resin material. The bonding surface of the mirror 2 in the mirror holder 3 can be formed flat, for example, along the back surface of the mirror 2. As shown in FIGS. 3 to 6, on the surface of the mirror holder 3 opposite to the bonding surface of the mirror 2, the rib 30, the pivot fitting portion 31, the upper adjustment gear connection portion 32, and the lower adjustment gear connection portion are provided. 33, an upper mirror holder engaging portion 34, and a lower mirror holder engaging portion 35 are provided.

  The mirror surface adjustment unit 4 adjusts the angle of the mirror 2 held by the mirror holder 3 by adjusting the angle of the mirror holder 3 in the left-right direction (around the vertical axis) and the up-down direction (around the horizontal axis extending in the left-right direction). It is fixed to the visor 5 and incorporated in the door mirror 1.

  As shown in FIGS. 7 to 9, the mirror surface adjustment unit 4 includes a mirror side casing 40 located on the mirror 2 side, a visor side casing 41 located on the visor 5 side, an upper adjustment gear A, and a lower adjustment gear. B. In the mirror side casing 40, a pivot ball 42 is provided so as to protrude to the mirror 2 side (rear side). An annular wall 43 is provided around the pivot ball 42 of the mirror side casing 40. Further, the mirror side casing 40 is formed with an upper insertion hole 44 through which the movable shaft A1 of the upper adjustment gear A is inserted, and a lower insertion hole 45 through which the movable shaft B1 of the lower adjustment gear B is inserted.

  The mirror side casing 40 and the visor side casing 41 are fastened and fixed to the visor 5 by screws C as fastening members, as shown in FIG. The mirror side casing 40 and the visor side casing 41 are arranged on the mirror 2 side of the visor 5. On the other hand, the screw C penetrates the visor 5 from the side opposite to the mirror 2 side of the visor 5 and is screwed into the mirror side casing 40 and the visor side casing 41.

  As shown in FIG. 9, the pivot ball 42 of the mirror side casing 40 is made of a resin material and is integrally formed with the mirror side casing 40. A columnar base 46 for separating the pivot sphere 42 and the mirror-side casing 40 is provided at the base of the pivot sphere 42.

  The pivot ball 42 is fitted to the pivot fitting portion 31 of the mirror holder 3. In a state where the pivot ball 42 is fitted to the pivot fitting portion 31, the mirror 2 is supported by the mirror surface adjustment unit 4 via the mirror holder 3 so as to be tiltable about the horizontal axis and the vertical axis. The front end surface of the pivot ball 42 in the protruding direction from the mirror-side casing 40 is constituted by a flat surface 42a extending in a direction orthogonal to the protruding direction (front-rear direction).

  Four grooves 42b, 42b,... Are provided on the outer surface of the pivot ball 42. Each groove 42b extends from the distal end side in the protruding direction of the pivot ball 42 to the proximal end side. A portion of each groove 42b on the front end side in the protruding direction of the pivot ball 42 is located on the flat surface 42a of the pivot ball 42. A portion of each groove 42b on the proximal end side in the protruding direction of the pivot ball 42 is located at the proximal end portion of the pivot ball 42. The groove 42b is curved so as to correspond to the outer surface of the pivot ball 42 as a whole. The four grooves 42b, 42b,... Are provided at substantially equal intervals in the circumferential direction of the pivot ball 42.

  Four pivot side contact portions 42c, 42c,... That contact the inner surface of the pivot fitting portion 31 are provided on the outer surface of the pivot ball 42 between the grooves 42b, 42b adjacent in the circumferential direction. The pivot-side contact portion 42c is formed of a curved surface formed by portions other than the flat surface 42a and the groove 42b on the outer surface of the pivot sphere 42. That is, the pivot-side contact portion 42 c is a part of a spherical surface and is arranged at equal intervals in the circumferential direction of the pivot sphere 42.

  The upper adjustment gear A shown in FIG. 7 includes an electric motor, a reduction gear, and a feed screw mechanism (not shown), and moves the movable shaft A1 forward and backward in the axial direction (front-rear direction) by normal rotation and reverse rotation of the electric motor. Be able to. The upper adjustment gear A is positioned on the right side of the pivot ball 42 in a state where the mirror surface adjustment unit 4 is assembled to the visor 5, and adjusts the angle of the mirror holder 3 left and right (around the vertical axis) by moving the movable shaft A <b> 1. Be able to. A spherical portion A2 connected to the upper adjustment gear connecting portion 32 of the mirror holder 3 is provided at the tip of the movable shaft A1 so as to protrude in the advancing direction of the movable shaft A1. The electric motor is operated by a switch provided in the passenger compartment.

  The lower adjustment gear B is configured in the same manner as the upper adjustment gear A. The lower adjustment gear B is positioned below the pivot ball 42 in a state where the mirror surface adjustment unit 4 is assembled to the visor 5 and is moved forward and backward by the movable shaft B1. The angle of the mirror holder 3 can be adjusted up and down (around the horizontal axis). A spherical portion B2 connected to the lower adjustment gear connecting portion 33 of the mirror holder 3 is provided at the tip of the movable shaft B1 so as to protrude in the advancing direction of the movable shaft B1.

  The annular wall 43 formed integrally with the mirror side casing 40 has an annular shape surrounding the pivot ball 42. The inner surface of the annular wall 43 is separated from the outer surface of the pivot ball 42 by a predetermined dimension so that the pivot fitting portion 31 of the mirror holder 3 can be inserted into the inner side of the annular wall 43. The inner surface of the annular wall 43 is curved so as to approach the pivot sphere 42 toward the proximal end side of the annular wall 43. A pivot sphere 42 is located at the center of the annular wall 43.

  As shown in FIG. 3, the rib 30 of the mirror holder 3 is provided so as to protrude from the side opposite to the surface to which the mirror 2 is bonded. As shown in FIG. 5, the pivot fitting portion 31 of the mirror holder 3 is formed so as to cover a part on the proximal end side from the distal end portion in the protruding direction of the pivot ball 42.

  The pivot fitting portion 31 is provided with four fitting portion side contact portions 31a that contact the pivot side contact portion 42c of the pivot ball 42 corresponding to the pivot side contact portion 42c. The fitting portion side contact portion 31a is configured by a part of the inner surface of the pivot fitting portion 31, and in a state where the pivot ball 42 is inserted and fitted into the pivot fitting portion 31, the pivot side contact portion 42c The curved surface shape is along the pivot side contact portion 42c and at substantially the same interval. The fitting portion side contact portion 31a extends from the tip end portion of the pivot ball 42 in the protruding direction to the base end side with respect to the center portion in the protruding direction of the pivot ball 42. Therefore, the fitting portion side contact portion 31a is the pivot side contact portion. In the state where it is in contact with 42c, the detachment of the pivot ball 42 from the pivot fitting portion 31 is prevented by the fitting portion side contact portion 31a.

  The pivot fitting portion 31 includes four notches 31b, 31b,... For allowing the pivot side contact portion 42c to be inserted into the pivot fitting portion 31 between the adjacent fitting portion side contact portions 31a, 31a. Is provided. The cutout portion 31b is formed by cutting out a part of the pivot fitting portion 31 on the front end side in the protruding direction from the mirror holder 3.

  The upper adjustment gear coupling portion 32 of the mirror holder 3 shown in FIG. 3 is connected to the spherical portion A2 of the upper adjustment gear A of the mirror surface adjustment unit 4 shown in FIG. In this embodiment, the upper adjustment gear coupling portion 32 is formed in a concave shape surrounding the spherical portion A2. When the spherical portion A2 is pressed against the upper adjustment gear coupling portion 32, the upper adjustment gear coupling portion 32 is elastically deformed to allow the spherical portion A2 to be inserted. After the spherical portion A2 is inserted, the shape of the upper adjustment gear coupling portion 32 is changed. By restoring, the spherical portion A2 is held in the inserted state. The spherical portion A <b> 2 is rotatable inside the upper adjustment gear coupling portion 32.

  The lower adjustment gear coupling portion 33 of the mirror holder 3 is configured in the same manner as the upper adjustment gear coupling portion 32.

  The upper mirror holder engaging portion 34 of the mirror holder 3 shown in FIG. 3 is for engaging the mirror holder 3 with the visor 5 while allowing tilting, and is a plate protruding from the mirror holder 3 toward the visor 5 side. The shaft insertion part 34a is formed in the front end side. An upper shaft portion 51 (shown in FIG. 10) provided at a corresponding portion of the visor 5 is inserted into the shaft insertion portion 34a. That is, the visor 5 is formed with a through hole 53 at a portion corresponding to the upper mirror holder engaging portion 34. An upper shaft 51 is provided inside the through-hole 53, and the upper shaft 51 extends in the vertical direction.

  Similar to the upper mirror holder engaging portion 34, the lower mirror holder engaging portion 35 of the mirror holder 3 is for engaging the mirror holder 3 with the visor 5 while allowing tilting. Is formed with a plate portion protruding toward the visor 5 side, and a shaft insertion portion 35a is formed on the tip side thereof. A lower shaft portion 52 provided at a corresponding portion of the visor 5 is inserted into the shaft insertion portion 35a. That is, the visor 5 is formed with a through hole 54 at a portion corresponding to the lower mirror holder engaging portion 35. A lower shaft portion 52 is provided inside the through-hole 54, and the lower shaft portion 52 extends in the left-right direction.

  When the upper shaft portion 51 and the lower shaft portion 52 of the visor 5 are inserted into the upper mirror holder engaging portion 34 and the lower mirror holder engaging portion 35, the mirror holder 3 is rotated around the axis in the front-rear direction with respect to the visor 5 (pivot sphere 42 Rotation around the center line in the protruding direction is prevented. That is, the upper mirror holder engaging portion 34 and the lower mirror holder engaging portion 35, and the upper shaft portion 51 and the lower shaft portion 52 of the visor 5 are the rotation restricting portions.

  In the state where the upper shaft portion 51 and the lower shaft portion 52 of the visor 5 are inserted into the upper mirror holder engaging portion 34 and the lower mirror holder engaging portion 35, the mirror holder 3 is allowed to tilt.

  The case where the vehicle door mirror 1 comprised as mentioned above is assembled is demonstrated. The mirror 2 is bonded to the mirror holder 3, and the mirror surface adjustment unit 4 is assembled to the mirror holder 3. At this time, the pivot ball 42 of the mirror surface adjustment unit 4 is fitted to the pivot fitting portion 31 of the mirror holder 3. That is, first, the pivot side contact portion 42 c of the pivot ball 42 is aligned with the notch portion 31 b of the pivot fitting portion 31, and the fitting portion side contact portion 31 a of the pivot fitting portion 31 is aligned with the groove 42 b of the pivot ball 42. When the pivot ball 42 is inserted into the pivot fitting portion 31, the pivot side contact portion 42c of the pivot ball 42 is inserted into the pivot fitting portion 31 from the notch portion 31b of the pivot fitting portion 31, and The fitting portion side contact portion 31a of the pivot fitting portion 31 is inserted into the groove 42b of the pivot ball 42, and insertion of the pivot ball 42 into the pivot fitting portion 31 is allowed (state shown in FIG. 11A). .

  Thereafter, one of the pivot sphere 42 and the pivot fitting portion 31 is rotated around the axis in the protruding direction of the pivot sphere 42 with respect to the other (in the direction of arrow X in FIG. 11A) to be fitted with the pivot side contact portion 42c. The joint portion side contact portion 31a is matched (state shown in FIG. 11B). In this way, the pivot side contact portion 42c and the fitting portion side contact portion 31a come into contact with each other. In this state, the fitting portion side contact portion 31a covers more than half of the protruding direction of the pivot ball 42. 42 is engaged with the pivot fitting portion 31, and the pivot ball 42 is prevented from coming off. When the pivot ball 42 is fitted, one of the pivot ball 42 and the pivot fitting portion 31 may be rotated, or both may be rotated in opposite directions.

  Then, the spherical portion A2 of the upper adjustment gear A and the spherical portion B2 of the lower adjustment gear B of the mirror surface adjustment unit 4 are coupled to the upper adjustment gear coupling portion 32 and the lower adjustment gear coupling portion 33 of the mirror holder 3.

  Thereafter, the mirror surface adjustment unit 4 is fastened to the visor 5. In this state, the upper mirror holder engaging portion 34 and the lower mirror holder engaging portion 35 of the mirror holder 3 are engaged with the upper shaft portion 51 and the lower shaft portion 52 of the visor 5 to rotate the mirror holder 3. Be blocked.

  In addition, the electric storage unit 6, the under panel 7, the upper panel 8 and the mirror base 9 are assembled to the visor 5.

  As described above, according to the vehicle door mirror 1 of this embodiment, the groove 42b and the pivot side contact portion 42c are provided on the outer surface of the pivot ball 42, and the pivot fitting portion 31 is provided with the pivot side contact portion 42c. There are provided a fitting portion side contact portion 31a that contacts the pivot fitting portion 31 and a notch portion 31b for inserting the pivot side contact portion 42c into the pivot fitting portion 31, and the pivot side contact portion 42c of the pivot ball 42 is pivot fitted. The notch portion 31b of the portion 31 is inserted into the pivot fitting portion 31, and the fitting portion side contact portion 31a of the pivot fitting portion 31 is inserted into the groove 42b of the pivot ball 42. In this state, the pivot ball 42 and the pivot By pivoting the fitting portion 31 around an axis extending in the projecting direction of the pivot ball 42 to align the pivot side contact portion 42c with the fitting portion side contact portion 31a, the pivot ball 4 The can be fitted into the pivot engaging portion 31. As a result, when the mirror 2 is supported by the mirror surface adjustment unit 4, the pivot fitting portion 31 can be operated without forcibly deforming, so that the pivot ball 42 is not rattled and vibration of the mirror 2 is suppressed. it can. Further, since the work can be performed without using a strong force, the liquid crystal and the heater can be prevented from being damaged when the mirror 2 is provided.

  Further, the upper mirror holder engaging portion 34 and the lower mirror holder engaging portion 35 of the mirror holder 3 are connected to the upper shaft portion 51 of the visor 5 in a state in which the fitting portion side contact portion 31 a and the pivot side contact portion 42 c coincide with each other. Further, the mirror holder 3 is prevented from rotating by engaging with the lower shaft portion 52. Thereby, since the relative rotation of the pivot ball 42 and the pivot fitting portion 31 can be restricted, the pivot ball 42 can be prevented from being detached from the fitting portion 41.

  Further, as in Modification 1 shown in FIG. 12, a separate frame 53 may be provided on the visor 5, and the mirror surface adjustment unit 4 may be fixed to the separate frame 53. In this case, an opening 59 for attaching the separate frame 53 is formed in the main body of the visor 5. The electric storage unit 6 is attached to the separate frame 53.

  Further, as in Modification 2 shown in FIGS. 13 and 14, the structures of the upper adjustment gear coupling portion 32 and the lower adjustment gear coupling portion 33 of the mirror holder 3 may be changed. The upper adjustment gear coupling portion 32 of the modified example 2 has an open portion 32a for fitting the spherical portion A2 of the upper adjustment gear A from below, and the lower adjustment gear coupling portion 33 is provided with the lower adjustment gear coupling 33. An open portion 33a for fitting the spherical portion B2 of the gear B from the left side is provided. That is, with the pivot ball 42 inserted into the pivot fitting portion 31, the mirror holder 3 is rotated around the axis of the pivot ball 42 with respect to the mirror surface adjustment unit 4, and the spherical portion of the upper adjustment gear A A2 can be fitted into the upper adjustment gear coupling portion 32 from below, and the spherical portion B2 of the lower adjustment gear B can be fitted into the lower adjustment gear coupling portion 33 from the left side. In this state, the relative rotation between the mirror holder 3 and the mirror surface adjustment unit 4 is restricted, so that the pivot ball 42 is prevented from coming off. The structure for restricting the relative rotation between the mirror holder 3 and the mirror surface adjustment unit 4 can be provided in the mirror holder 3 and the mirror side casing 40 of the mirror surface adjustment unit 4, or provided in the mirror holder 3 and the visor 5. You can also.

  As in Modification 3 shown in FIG. 15, an engagement protrusion 32 b that engages with the spherical portion A <b> 2 of the upper adjustment gear A may be provided on the upper adjustment gear coupling portion 32 of Modification 2. Similarly, an engagement protrusion (not shown) may be provided on the lower adjustment gear connecting portion 33 of the second modification.

  Further, as in Modification 4 shown in FIG. 16, the upper insertion hole 44 of the mirror side casing 40 of the mirror surface adjustment unit 4 is provided with a restriction portion 44 a for restricting the degree of freedom of the movable shaft A <b> 1 of the upper adjustment gear A. It may be provided. The restricting portion 44 a is formed in a linear shape extending in the left-right direction at the upper edge portion and the lower edge portion of the upper insertion hole 44, and the movable shaft A <b> 1 of the upper adjustment gear A extends in the vertical direction with respect to the mirror-side casing 40. It is configured to allow movement in the left-right direction while preventing it from rattling.

  Further, the lower insertion hole 45 of the mirror side casing 40 of the mirror surface adjustment unit 4 may be provided with a restriction portion 45a for restricting the degree of freedom of the movable shaft B1 of the lower adjustment gear B. The restricting portion 45 a is formed in a straight line extending in the vertical direction at the left and right edges of the lower insertion hole 45, and the movable shaft B <b> 1 of the lower adjustment gear B is in the horizontal direction with respect to the mirror side casing 40. While preventing rattling, it is configured to allow movement in the vertical direction.

  17 and 18, the pivot side contact portion 42c and the fitting portion side contact portion 31a are in a state where the pivot side contact portion 42c and the fitting portion side contact portion 31a coincide with each other. A pivot side engaging portion 42f and a fitting portion side engaging portion 31f that are engaged with each other may be provided. That is, the pivot-side contact portion 42c is formed with a convex portion as the pivot-side engaging portion 42f. Moreover, the fitting part side contact part 31a is formed with a recess as the fitting part side engaging part 31f. The fitting portion side contact portion 31a extends along the turning locus of the pivot sphere 42 so as to allow the pivot sphere 42 to turn when the angle of the mirror 2 is adjusted. Since the pivot side engaging portion 42f enters the fitting portion side engaging portion 31f, the pivot side engaging portion 42f and the fitting portion side engaging portion 31f are brought into the engaged state. The assembling worker can easily grasp that the part-side contact portions 31a coincide with each other and can reliably perform the assembling work.

  In addition, the structure which concerns on the modification of the said embodiment can be combined arbitrarily.

  In the above embodiment, the pivot ball 42 is provided in the mirror surface adjustment unit 4 and the pivot fitting portion 31 is provided in the mirror holder 3. However, the present invention is not limited to this, but the pivot ball is provided in the mirror holder 3. A pivot fitting unit may be provided in the mirror surface adjustment unit 4.

  The above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  As described above, the mirror surface adjustment unit structure of a vehicle door mirror according to the present invention can be used by being attached to a front door of an automobile, for example.

DESCRIPTION OF SYMBOLS 1 Vehicle door mirror 2 Mirror 3 Mirror holder 4 Mirror surface adjustment unit 31 Pivot fitting part 31a Fitting part side contact part 31b Notch part 31f Fitting part side engaging part 34 Upper mirror holder engaging part (turning regulation part)
35 Lower mirror holder engaging part (rotation restricting part)
42 Pivot sphere 42b Groove 42c Pivot side contact portion 42f Pivot side engaging portion 51 Upper shaft portion (rotation restricting portion)
52 Lower shaft (rotation restriction)
D Rotation restriction part

Claims (3)

In a mirror surface adjustment unit structure of a vehicle door mirror comprising a mirror, a mirror holder to which the mirror is mounted, and a mirror surface adjustment unit for adjusting the angle of the mirror,
One of the mirror holder and the mirror surface adjustment unit is provided with a pivot ball, and the other is provided with a fitting portion into which the pivot ball is inserted and fitted from the front end side in the protruding direction of the pivot ball. Through the mirror holder so that the mirror can be tilted around a horizontal axis and a vertical axis extending in the vehicle width direction in a state in which the pivot ball is fitted into the fitting portion. Supported by the mirror surface adjustment unit,
On the outer surface of the pivot sphere, a plurality of grooves extending from the distal end side to the proximal end side in the projecting direction of the pivot sphere are provided at intervals in the circumferential direction of the pivot sphere. A pivot-side contact portion that contacts the inner surface of the fitting portion is provided,
The fitting portion is provided with a plurality of fitting portion side contact portions that contact the pivot side contact portion, corresponding to the pivot side contact portion, and between the adjacent fitting portion side contact portions. A notch portion is provided for enabling the pivot side contact portion to be inserted into the fitting portion,
The pivot side contact portion of the pivot ball is inserted into the fitting portion from the notch portion of the fitting portion, and the fitting portion side contact portion of the fitting portion is inserted into the groove of the pivot ball. In this state, the pivot sphere and the fitting portion are relatively rotated around an axis extending in the protruding direction of the pivot sphere so that the pivot side contact portion and the fitting portion side contact portion are aligned with each other. A mirror surface adjustment unit structure for a vehicle door mirror, wherein a pivot ball is fitted into the fitting portion. In the mirror surface adjustment unit structure of the vehicle door mirror according to claim 1,
The mirror holder and the mirror surface adjustment unit have a rotation restricting portion for restricting relative rotation of the pivot ball and the fitting portion in a state where the pivot side contact portion and the fitting portion side contact portion coincide with each other. A mirror surface adjustment unit structure for a vehicle door mirror, which is provided. In the mirror surface adjustment unit structure of the vehicle door mirror according to claim 1 or 2,
The pivot side engaging part and the fitting part side contact part are engaged with the pivot side engaging part and the fitting part side engaging part in a state in which the pivot side contact part and the fitting part side contact part coincide with each other. The mirror surface adjustment unit structure of the door mirror for vehicles characterized by the above-mentioned.

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