JP2015214219A - Vehicle side mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle side mirror which prevents slide resistance between a movable side protruding part and a fixed side protruding part from becoming excessively large over a long period and inhibits wear of the movable side protruding part and the fixed side protruding part.SOLUTION: A storage unit includes: a support shaft 40 fixed to a base part; a movable member which is fixed to a mirror housing and rotatably supported by the support shaft; and a biasing member which biases the movable member in an axial direction of the support shaft. A fixed side protruding part 57 which protrudes in the axial direction is provided at the support shaft 40. A movable side protruding part is provided at a case. A groove 57e, in which a lubricant exists, is formed in the fixed side protruding part 57.

Description

  The present invention relates to a vehicle side mirror attached to a side portion of, for example, an automobile.

  Conventionally, a vehicle side mirror attached to a side portion of a vehicle includes a base portion fixed to the vehicle, a mirror housing that holds the mirror, and a mirror housing that is rotatably connected to the base portion. A storage unit for switching the housing between a use state and a storage state is provided (for example, see Patent Documents 1 and 2).

  The storage unit includes a support shaft that is fixed to the base portion, and a case that is rotatably supported by the support shaft and accommodates a motor and the like. The case is fixed to the mirror housing. Usually, the case, that is, the mirror housing is rotated around the support shaft by the rotational force of the motor so that the mirror housing can be switched between the use state and the retracted state.

  The base end portion of the support shaft is provided with a plurality of fixed-side convex portions that protrude upward. Moreover, the movable side convex part is provided in the case so that it may be located between the fixed side convex parts. The case is biased in the axial direction of the support shaft by a spring, and the rotation angle of the mirror housing when the fixed side convex portion and the movable side convex portion are engaged and in the retracted state and in the used state Will be specified. In this state, if some external force acts on the mirror housing by forcibly rotating the mirror housing by hand, the movable side convex part moves over the fixed side convex part against the biasing force of the spring, As a result, the mirror housing can be rotated.

JP 2001-151020 A JP 2013-75541 A

  By the way, when the mirror housing to which an external force is applied rotates, the side surface of the movable-side convex portion slides on the side surface of the fixed-side convex portion. At this time, if the sliding resistance is too large, the mirror housing rotates. The movement is obstructed.

  In addition, when the side surface of the movable side convex portion slides repeatedly on the side surface of the fixed side convex portion, the movable side convex portion and the fixed side convex portion are worn and switched to the retracted state by the motor. When switching to a use state, the movable-side convex portion gets over the fixed-side convex portion, making it impossible to define the angle of the mirror housing.

  The present invention has been made in view of such a point, and an object of the present invention is to prevent the sliding resistance between the movable-side convex portion and the fixed-side convex portion from becoming too large over a long period of time. It is to suppress wear of the movable side convex portion and the fixed side convex portion.

  In order to achieve the above object, in the present invention, the lubricant can be supplied to the sliding portion between the movable side convex portion and the fixed side convex portion.

The first invention is
A base part attached to the vehicle;
A mirror housing to which the mirror is mounted;
In the vehicle side mirror provided with a storage unit for rotatably connecting the mirror housing to the base portion and switching the mirror housing between a storage state and a use state,
The storage unit includes a support shaft fixed to the base portion, a movable member fixed to the mirror housing and rotatably supported by the support shaft, and the movable member in the axial direction of the support shaft. A biasing member for biasing,
The support shaft is provided with a fixed convex portion protruding in the axial direction,
The movable member is provided with a movable convex portion protruding in the axial direction of the support shaft,
The movable-side convex portion engages with the side surface of the fixed-side convex portion by the urging force to prevent the mirror housing from rotating, and on the fixed-side convex portion against the urging force. And is configured to allow the mirror housing to rotate by slidingly contacting the fixed-side convex portion,
A groove in which a lubricant is present is formed in at least one of the fixed-side convex portion and the movable-side convex portion.

  According to this configuration, for example, when an external force is applied to the mirror housing in the retracted state or the used state, the movable-side convex portion slides against the fixed-side convex portion against the urging force of the urging member, and the fixed side The mirror housing is allowed to rotate by riding on the convex portion. When the movable convex portion is in sliding contact with the fixed convex portion, the lubricant is present in at least one of the grooves, so that the lubricant is supplied between the convex portions. Thereby, the sliding resistance between the movable-side convex portion and the fixed-side convex portion is reduced, and wear of the movable-side convex portion and the fixed-side convex portion is suppressed.

According to a second invention, in the first invention,
The groove has a first groove extending in a circumferential direction of the support shaft.

  That is, when the mirror housing is rotated by an external force, the movable convex portion moves around the support shaft. At this time, the first groove extends in the circumferential direction of the support shaft, so that the lubricant is It becomes easy to spread over the entire moving direction of the movable convex portion along one groove.

According to a third invention, in the first or second invention,
The groove has a second groove extending in a radial direction of the support shaft.

  According to this configuration, when the mirror housing is rotated by an external force, the lubricant easily spreads over a wide range of the fixed-side convex portion and the movable-side convex portion along the second groove.

According to a fourth invention, in any one of the first to third inventions,
The groove is formed on the fixed-side convex portion,
The support shaft is characterized in that a recess for storing a lubricant is formed so as to communicate with the groove.

  According to this configuration, since the lubricant accumulated in the concave portion is supplied to the groove, the lubricant is supplied between the movable side convex portion and the fixed side convex portion over a long period of time.

According to a fifth invention, in any one of the first to fourth inventions,
The groove is continuous from the side surface of the fixed-side convex portion to the tip surface.

  According to this configuration, since the lubricant is supplied from the side surface of the fixed side convex portion to the tip surface, a wide range of the fixed side convex portion and the movable side convex portion is lubricated.

  According to the first invention, since the groove in which the lubricant is present is formed in at least one of the fixed-side convex portion of the support shaft and the movable-side convex portion of the movable member, the movable-side convex portion is fixed over a long period of time. The sliding resistance with the side convex portion can be prevented from becoming too large, and wear of the movable side convex portion and the fixed side convex portion can be suppressed.

  According to the second invention, since the first groove extends in the circumferential direction of the support shaft, the lubricant easily spreads over the entire moving direction of the movable convex portion, and the entire movable convex portion and fixed convex portion. Abrasion can be suppressed over the entire range.

  According to the third invention, since the second groove extends in the radial direction of the support shaft, the lubricant easily spreads over a wide range of the fixed-side convex portion and the movable-side convex portion. Wear can be suppressed over the entire convex portion.

  According to the fourth aspect of the present invention, the groove is formed on the fixed-side convex portion, and the concave portion where the lubricant is accumulated is formed on the support shaft so as to communicate with the groove. And it can supply between fixed side convex parts.

  According to the fifth aspect of the invention, since the groove is continuous from the side surface to the tip surface of the fixed side convex portion, a wide range of the fixed side convex portion and the movable side convex portion can be lubricated.

It is a perspective view in case the side mirror for vehicles concerning an embodiment is in use. It is the figure which looked at the side mirror for vehicles concerning an embodiment from back. It is a disassembled perspective view of a storage unit. It is a fragmentary sectional view of a storage unit. It is a bottom view of a part of the case. It is a perspective view of a support shaft. It is a top view of a support shaft. FIG. 5 is an enlarged view of a part A in FIG. 4, (a) shows a storage state, (b) shows a state in the middle of switching from the storage state to the use state, and (c) shows a state immediately before entering the use state. It is the A section enlarged view in Drawing 4, (a) shows a use state, (b) shows the state where a convex part touches, (c) shows the state where a convex part got on, (d) Indicates a state in which the mirror housing is rotated. The case where grease is stored on the support shaft is shown, (a) is a view corresponding to FIG. 8 (a), (b) is a view corresponding to FIG. 9 (a), and (c) is a view corresponding to FIG. 9 (b). (D) is a view corresponding to FIG. 9 (c). Fig. 9 (d) is a view corresponding to Fig. 9 (d), Fig. 9 (b) shows a case where the support shaft rotates to the opposite side, and Fig. 9 (c) shows a case where the support shaft is further moved to the opposite side. The case where it rotated is shown, (d) shows the state which the movable side convex part moved below.

  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 part of a vehicle to which a vehicle side mirror 1 according to an embodiment of the present invention is attached. The side mirror 1 is a so-called door mirror that is used to confirm the driver's rear and is attached to the outer panel P of the front door F.

  In the following description, the right side mirror 1 will be described, but the left side mirror has the same configuration as that of the right side mirror 1 except that it is bilaterally symmetric. To do. Further, the present invention can also be applied to a side mirror that is used by being attached to the front end portion of a sash (not shown).

  In the description of this embodiment, for convenience of explanation, the front side of the vehicle is simply referred to as “front”, the rear side of the vehicle is simply referred to as “rear”, and the left side in the vehicle width direction is simply referred to as “left”. The right side in the vehicle width direction is simply called “right”.

  As shown in FIG. 2, the side mirror 1 includes a rear-viewing mirror 2, a base portion 3 attached to the outer panel P, a mirror housing 4 to which the mirror 2 is attached, and an angle adjustment unit that adjusts the angle of the mirror 2. (Not shown) and a storage unit 6 (an exploded view is shown in FIG. 3 and a partial cross-sectional view is shown in FIG. 4) for switching the mirror housing 4 between a storage state and a use state.

  As shown in FIG. 2, the mirror 2 has a shape that is long in the left-right direction. Although not shown, a heater is provided on the back surface of the mirror 2.

  The base portion 3 is fastened and fixed to the outer panel P by a fastening member (not shown), and extends obliquely upward to the right while being fixed to the outer panel P. A storage unit 6 is fixed to the upper portion of the base portion 3. Between the base portion 3 and the outer panel P, a waterproof seal rubber (not shown) is disposed.

  The mirror housing 4 includes a housing body 25, an upper visor B1, and a lower visor B2. The housing body 25, the upper visor B1, and the lower visor B2 are formed by molding a resin material. The structure of the mirror housing 4 is not limited to the above structure.

  The housing body 25 has a shape that is long in the left-right direction corresponding to the shape of the mirror 2. On the rear side of the housing body 25, a recess 26 that is long in the left-right direction for accommodating the mirror 2 and the angle adjustment unit is formed to open rearward.

  Although not shown, the angle adjustment unit includes a drive mechanism that drives a mirror holder (not shown) to which the mirror 2 is fixed. The mirror holder is supported by the drive mechanism via a pivot sphere of the drive mechanism. The drive mechanism is fastened and fixed to the bottom wall portion of the recess 26 of the mirror housing 4. The angle of the mirror 2 can be adjusted by the drive mechanism tilting the mirror holder.

  The storage unit 6 is a so-called electric storage unit that can switch the mirror housing 4 between a storage state and a use state by a button operation in the vehicle compartment.

  The retracted state of the mirror housing 4 is a posture in which the right end of the mirror housing 4 approaches the window glass of the front door F and the mirror surface of the mirror 2 extends in the front-rear direction, and the used state is as shown in FIG. Further, the right end of the mirror housing 4 is away from the window glass, and the mirror surface of the mirror 2 extends in the left-right direction.

  As shown in FIGS. 3 and 4, the storage unit 6 includes a resin support shaft 40 fixed to the base portion 3 and a resin drive case (movable member) 50 fixed to the mirror housing 4. ing. The support shaft 40 extends in the vertical direction. As shown in FIG. 3, a mounting seat 41 having a diameter larger than the upper outer diameter is provided below the support shaft 40. The mounting seat 41 is fixed to the base portion 3 using a fastening member or the like. The upper side of the mounting shaft 41 of the fixed shaft 40 is configured by a small-diameter cylindrical portion 42 extending upward. A plurality of teeth 42 a are formed on the outer peripheral surface of the cylindrical portion 42 at intervals in the circumferential direction.

  The drive case 50 is divided into two in the vertical direction, and includes a lower case member 51 and an upper case member 52. The entire upper side of the lower case member 51 is open. A claw 51 a is formed on the outer surface of the lower case member 51. Further, the entire lower side of the upper case member 52 is open. On the outer surface of the upper case member 52, an engaging portion 52a with which the claw 51a is engaged is formed. In a state where the lower case member 51 and the upper case member 52 are combined, the claw 51a is engaged with and integrated with the engaging portion 52a.

  The bottom wall portion 51b of the lower case member 51 has a long shape. As shown in FIG. 5, a circular through hole 51 c into which the cylindrical portion 42 of the support shaft 50 is inserted is formed on one side in the longitudinal direction of the bottom wall portion 51 a of the lower case member 51. Most of the cylindrical portion 42 is accommodated in the drive case 50.

  As shown in FIG. 3, a support hole 52c is formed in the upper wall portion 52b of the upper case member 52 immediately above the through hole 51c. The upper end portion of the cylindrical portion 42 of the support shaft 50 is supported in the support hole 52c in a state where the upper end portion is rotatably inserted. The drive case 50 is supported so as to be rotatable about the axis with respect to the support shaft 40 in a state where the cylindrical portion 42 of the support shaft 40 is inserted into the through hole 51c and the support hole 52c.

  A drive mechanism for driving the mirror housing 4 is accommodated in the drive case 50. The drive mechanism constitutes a part of the storage unit 6, and a motor M provided with a drive gear G composed of a worm gear on the output shaft and a driven gear H meshed with the drive gear G were provided at the base end portion. The rotating shaft 43 and a sun gear 44 provided at the lower end of the cylindrical portion 42 of the support shaft 40 are provided. The rotating shaft 43 is provided with a planetary gear 43 a formed of a worm gear that meshes with the sun gear 44. The output of the motor M input to the drive gear G is transmitted to the planetary gear 43a via the driven gear H. The motor M is controlled by the control device 45.

  The motor M is held by the motor holder 46 in a posture state in which the output shaft extends in the vertical direction. The motor holder 46 is fixed while being accommodated in the drive case 50. The drive gear G of the motor M protrudes downward. The rotating shaft 43 is in a posture extending in the horizontal direction, and both ends thereof are rotatably supported by the motor holder 46.

  The sun gear 44 has a ring shape, and teeth are formed on the outer peripheral surface thereof. A cylindrical portion 42 of the support shaft 40 is inserted inside the sun gear 44, and the sun gear 44 is supported by the cylindrical portion 42 in this state. The sun gear 44 comes into contact with the inner surface of the bottom wall portion 51 b of the lower case member 51. A plurality of protrusions 44 a are formed on the inner surface of the sun gear 44 so as to be separated from each other in the circumferential direction.

  Further, a ring member 47, a coil spring 48, and a stopper ring 49 are accommodated in the drive case 50. The ring member 47, the coil spring 48, and the stopper ring 49 constitute a part of the storage unit 6.

  The cylindrical portion 42 of the support shaft 40 is inserted inside the ring member 47. The ring member 47 is placed on the upper surface of the sun gear 44, and the lower side of the ring member 47 is inserted into the sun gear 44. A notch 47 a into which the projection 44 a of the sun gear 44 is fitted is formed below the ring member 47. Further, a projection 47 b that fits between the teeth 42 a of the cylindrical portion 42 of the support shaft 40 is formed on the inner surface of the ring member 47. Accordingly, the ring member 47 cannot rotate relative to the sun gear 44 in a state where the notch 47a is fitted in the projection 44a of the sun gear 44, and the projection 47b is fitted between the teeth 42a of the support shaft 40. Thus, the support shaft 40 is also relatively unrotatable. Thereby, the sun gear 44 is integrated with the support shaft 40 via the ring member 47.

  The coil spring 48 is an urging member for urging the drive case 50 downward (in the axial direction of the support shaft 40). The coil spring 48 is disposed so that its expansion / contraction direction is the vertical direction, and the cylindrical portion 42 of the support shaft 40 is inserted inside the coil spring 48. The lower end portion of the coil spring 48 is in contact with the upper surface of the ring member 47.

  A stopper ring 49 is fixed to the upper portion of the cylindrical portion 42 of the support shaft 40. The upper end portion of the coil spring 48 is in contact with the lower surface of the stopper ring 49. Therefore, the urging force by the coil spring 49 is transmitted to the lower case member 51 of the drive case 50 via the ring member 47 and the sun gear 44, and the bottom wall portion 51 b of the lower case member 51 is attached to the mounting seat 41 of the support shaft 40. Acting in the direction of pressing against the upper surface of the plate.

  As shown in FIG. 5, on the lower surface of the bottom wall portion 51b of the lower case member 51, an annular ridge portion 51d that protrudes downward and extends so as to surround the through hole 51c is formed. The annular ridge 51d has an annular shape centered on the center of the through hole 51c. In addition, on the lower surface of the bottom wall portion 51 b of the lower case member 51, two movable side convex portions 54, 54 are spaced from each other in the circumferential direction of the support shaft 40, inward of the annular protrusion 51 d. Is provided. Each movable-side convex portion 54 protrudes downward (in the axial direction of the support shaft 40) and has a shape that is long in the circumferential direction of the support shaft 40.

  Both side surfaces 54a and 54a located at both ends in the longitudinal direction of each movable-side convex portion 54 are inclined so as to approach each other toward the lower side. Further, the projecting direction front end surface (lower end surface) 54 b of the movable-side convex portion 54 extends substantially flat in the circumferential direction of the support shaft 40.

  As shown in FIGS. 6 and 7, an annular sliding contact surface 41 a is formed on the upper surface of the mounting seat 41 of the support shaft 40 so that the annular protrusion 51 d of the drive case 50 is in sliding contact therewith. The annular sliding contact surface 41a extends in an annular shape along the outer peripheral edge of the upper surface of the mounting seat 41, and has substantially the same diameter as the annular protrusion 51d. In addition, on the upper surface of the mounting seat 41 of the support shaft 40, two fixed-side convex portions 57 and 57 having the same shape are spaced from each other in the circumferential direction of the support shaft 40 inward of the annular sliding contact surface 41 a. Is provided. In addition, on the upper surface of the mounting seat 41 of the support shaft 40, a protrusion 58 is provided between the fixed-side convex portions 57 and 57.

  Each fixed-side convex portion 57 protrudes upward (in the axial direction of the support shaft 40) and has a shape that is long in the circumferential direction of the support shaft 40. Both side surfaces located at both ends in the longitudinal direction of the fixed-side convex portion 57 are a proximal-side inclined surface 57a located on the proximal side (lower side) in the protruding direction and a distal end located on the distal side (upper side) in the protruding direction, respectively. It is comprised by the side inclined surface 57b and the intermediate surface 57c extended in the circumferential direction between both inclined surface 57a, 57b (up-down direction intermediate part). Further, the protruding end surface (upper end surface) 57 d of the fixed-side convex portion 57 extends substantially flat in the circumferential direction of the support shaft 40.

  The base end side inclined surfaces 57a, 57a of each fixed-side convex portion 57 are inclined so as to approach each other toward the upper side. An intermediate surface 57c is connected to the upper edge of the base-side inclined surface 57a. The tip-side inclined surfaces 57b, 57b of each fixed-side convex portion 57 are also inclined in a direction approaching each other as they go upward. An intermediate surface 57c is connected to the lower edge of the tip side inclined surface 57b. Therefore, a stepped portion is formed on the side surface of the fixed-side convex portion 57 by the tip-side inclined surface 57b and the intermediate surface 57c.

  The fixed-side convex portion 57 is formed with a first groove 57e and a second groove 57f as grooves in which grease as a lubricant exists. The first groove 57 e extends in the circumferential direction of the support shaft 40 at the center in the width direction of the fixed-side convex portion 57 (the radial direction of the support shaft 40), and one tip-side inclined surface 57 b in the fixed-side convex portion 57. To the upper end surface 57d and the other tip side inclined surface 57b. The second groove 57f extends in the radial direction of the support shaft 40 so as to intersect with the first groove 57e, and three of the second grooves 57f are spaced apart from each other in the circumferential direction of the support shaft 40 on the upper end surface 57d of the fixed-side convex portion 57. Is formed. The second groove 57f may or may not be formed. The number of the second grooves 57f is not limited to three, and can be set to an arbitrary number.

  The intermediate surface 57c of the fixed-side convex portion 57 is formed with a grease reservoir 57g formed of a recess in which grease is accumulated so as to communicate with the end portion of the first groove 57e. The grease in the grease reservoir 57g can move into the first groove 57e.

  The protruding portion 58 extends in an arc shape from the edge of the base-side inclined surface 57 a of one fixed-side convex portion 57 to the edge of the base-side inclined surface 57 a of the other fixed-side convex portion 57. The protrusion 58 is provided close to the annular sliding contact surface 41a. Grease can be stored in a radially inner portion of the upper surface of the mounting seat 41 with respect to the protruding portion 58.

  As shown in FIG. 4 and FIG. 8A and the like, in a state where the support shaft 40 is assembled to the drive case 50, the annular sliding contact surface 41a of the support shaft 40 of the annular protrusion 51d of the drive case 50 is normally used. It will be in sliding contact with the lower end. At this time, the movable side convex portions 54 and 54 of the drive case 50 are positioned between the fixed side convex portions 57 and 57 of the support shaft 40, respectively, and the distal end surface 54 b of the movable side convex portion 54 and the support shaft 40. A slight gap is formed between the protrusions 58 and a small gap is also formed between the front end surface 57 d of the fixed-side convex portion 57 and the bottom wall portion 51 b of the drive case 50.

  FIG. 8A shows a case where the mirror housing 4 is in the retracted state. The process in which the mirror housing 4 is switched from this state to the use state shown in FIG. 9A passes through the states shown in FIGS. 8B and 8C. 8 and 9 show the case where the drive case 50 is fixed and the support shaft 40 is rotated around the axis for convenience, but in reality, the support shaft 40 is fixed to the vehicle body, and the support shaft 40 is supported. The drive case 50 rotates around the shaft 40. The rotation direction of the support shaft 40 is a direction indicated by an arrow in FIG. The grease reservoir 57g, the first groove 57e, and the second groove 57f are filled with grease before assembly.

  As shown in FIGS. 8B and 8C, when the support shaft 40 is rotated with respect to the drive case 50, the tip-side inclined surface 57b of the side surface of the fixed-side convex portion 57 is movable. The side surface 54a of the side convex portion 54 approaches. The front end surface 54 b of the movable convex portion 54 is positioned so as to be in sliding contact with the intermediate surface 57 c of the fixed convex portion 57. Therefore, during the rotation, the tip surface 54b of the movable convex portion 54 is in sliding contact with the intermediate surface 57c of the fixed convex portion 57, and the grease in the grease reservoir 57g is fixed between the fixed convex portion 57 and the movable convex portion 54. And is pushed toward the first groove 57e to flow.

  Then, as shown in FIG. 9A, the tip-side inclined surface 57b of the fixed-side convex portion 57 and the side surface 54a of the movable-side convex portion 54 come into contact with each other. Since the movable side convex portion 54 is urged downward by the coil spring 48, the movable side convex portion 54 does not get over the fixed side convex portion 57 depending on the driving force of the motor M, and the tip of the fixed side convex portion 57. The relative rotation between the mirror housing 4 and the support shaft 40 is stopped in a state where the side inclined surface 57b and the side surface 54a of the movable convex portion 54 are in contact with each other. Thereby, the angle of the mirror housing 4 is defined.

  Thereafter, for example, when an external force in the rotational direction is applied to the mirror housing 4 by a hand or some object, the movable side convex portion 54, that is, against the urging force of the coil spring 48, as shown in FIG. The drive case 50 moves upward while being guided by the tip-side inclined surface 57b of the fixed-side convex portion 57. Thereby, the relative rotation of the mirror housing 4 and the support shaft 40 becomes possible. As shown in FIG. 9C, when the movable side convex portion 54 moves further upward and the distal end surface 54b of the movable side convex portion 54 comes into contact with the distal end surface 57d of the fixed side convex portion 57, this time, As shown in FIG. 9 (d), the tip surface 54b of the movable-side convex portion 54 and the tip surface 57d of the fixed-side convex portion 57 slide to rotate the mirror housing 4 and the support shaft 40 relatively. .

  When the mirror housing 4 and the support shaft 40 rotate relatively, the grease in the first groove 57e and the second groove 57f is supplied between the movable side convex portion 54 and the fixed side convex portion 57. Therefore, the sliding resistance between the movable side convex portion 54 and the fixed side convex portion 57 is reduced, and wear of the movable side convex portion 54 and the fixed side convex portion 57 is suppressed.

  Further, as shown in FIG. 10A, the grease S can be accumulated on the upper surface of the mounting seat 41 of the support shaft 40 on the radially inner side from the protruding portion 58. In this case, when the support shaft 40 is rotated around the axis as described above, the side surface 54a and the front end surface 54b of the movable-side convex portion 54 move while in contact with the grease S, and FIGS. As shown in c), the grease S adheres to the side surface 54a and the tip surface 54b.

  Then, when an external force acts on the mirror housing 4 and the movable side convex portion 54 moves upward while being guided to the tip side inclined surface 57b of the fixed side convex portion 57 as shown in FIG. The grease S adhering to the side surface 54a and the front end surface 54b of the movable side convex portion 54 enters the first groove 57e and the second groove 57f, and the front end side of the fixed side convex portion 57 as shown in FIG. It also adheres to the inclined surface 57b.

  Thereafter, in order to return the mirror housing 4, when the support shaft 40 is rotated to the opposite side as shown in FIG. 11B, the movable side is moved as shown in FIG. 11C. The convex part 54 begins to move downward. At this time, the grease S adhering to the tip-side inclined surface 57 b of the fixed-side convex portion 57 adheres to the tip surface 54 b of the movable-side convex portion 54. When the movable convex portion 54 moves completely downward, as shown in FIG. 11D, the grease S adhering to the tip surface 54b of the movable convex portion 54 is pushed into the grease reservoir 57g and the first groove 57e. . As a result, the grease S stored radially inward from the protrusion 58 of the support shaft 40 can be supplied to the grease reservoir 57g and the first groove 57e. As a result, the sliding resistance between the movable side convex portion 54 and the fixed side convex portion 57 can be reduced over a long period of time, and wear of the movable side convex portion 54 and the fixed side convex portion 57 can be suppressed.

  As described above, according to the vehicle side mirror 1 according to this embodiment, since the first groove 57e and the second groove 57f in which grease is present are formed on the fixed-side convex portion 57 of the support shaft 40, a long period of time is obtained. In addition, the sliding resistance between the movable side convex portion 54 and the fixed side convex portion 57 can be prevented from becoming too large, and wear of the movable side convex portion 54 and the fixed side convex portion 57 can be suppressed.

  Further, since the first groove 57e extends in the circumferential direction of the support shaft 40, the grease easily spreads in the entire moving direction of the fixed-side convex portion 57 and the movable-side convex portion 54, and the movable-side convex portion 54 and the fixed-side convex portion Wear can be suppressed over the entire portion 57.

  Further, since the second groove 57 f extends in the radial direction of the support shaft 40, the grease easily spreads over a wide range of the fixed side convex portion 57 and the movable side convex portion 54.

  In addition, since the first groove 57e is formed in the fixed-side convex portion 57 and the grease reservoir 57g is formed in the support shaft 40 so as to communicate with the first groove 57e, the grease is moved over a long period of time. And it can supply between fixed side convex parts 57.

  Moreover, since the 1st groove | channel 57e is continuing from the side surface of the fixed side convex part 57 to the front end surface 57d, the wide range of the fixed side convex part 57 and the movable side convex part 54 can be lubricated.

  In the above embodiment, the first groove 57e and the second groove 57f are formed in the fixed-side convex portion 57. However, the present invention is not limited to this, and the fixed-side convex portion 57 is omitted and the movable-side convex portion 54 is omitted. Or may be formed on both the fixed-side convex portion 57 and the movable-side convex portion 54.

  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 vehicle side mirror according to the present invention can be used by being attached to, for example, a door disposed on a side portion of an automobile.

DESCRIPTION OF SYMBOLS 1 Vehicle side mirror 2 Mirror 3 Base part 4 Mirror housing 6 Storage unit 40 Support shaft 48 Coil spring (biasing member)
50 Drive case (movable member)
54 Movable convex portion 57 Fixed convex portion 57e First groove 57f Second groove 57g Grease reservoir (concave portion)

Claims (5)

A base part attached to the vehicle;
A mirror housing to which the mirror is mounted;
In the vehicle side mirror provided with a storage unit for rotatably connecting the mirror housing to the base portion and switching the mirror housing between a storage state and a use state,
The storage unit includes a support shaft fixed to the base portion, a movable member fixed to the mirror housing and rotatably supported by the support shaft, and the movable member in the axial direction of the support shaft. A biasing member for biasing,
The support shaft is provided with a fixed convex portion protruding in the axial direction,
The movable member is provided with a movable convex portion protruding in the axial direction of the support shaft,
The movable-side convex portion engages with the side surface of the fixed-side convex portion by the urging force to prevent the mirror housing from rotating, and climbs on the fixed-side convex portion against the urging force. And is configured to allow the mirror housing to rotate by slidingly contacting the fixed-side convex portion,
A vehicle side mirror, wherein a groove in which a lubricant is present is formed in at least one of the fixed-side convex portion and the movable-side convex portion. The vehicle side mirror according to claim 1,
The vehicle side mirror according to claim 1, wherein the groove has a first groove extending in a circumferential direction of the support shaft. The vehicle side mirror according to claim 1 or 2,
The vehicle side mirror according to claim 1, wherein the groove has a second groove extending in a radial direction of the support shaft. In the vehicle side mirror according to any one of claims 1 to 3,
The groove is formed on the fixed-side convex portion,
The vehicle side mirror according to claim 1, wherein a concave portion in which a lubricant is accumulated is formed on the support shaft so as to communicate with the groove. In the vehicle side mirror according to any one of claims 1 to 4,
The vehicle side mirror according to claim 1, wherein the groove is continuous from a side surface to a tip surface of the fixed-side convex portion.

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