JP2008087639A - Mirror mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the transmission of vibration from a vehicle body to a mirror assembly by sufficiently improving coupling rigidity between a base plate and a coupling plate. <P>SOLUTION: In the mirror mounting structure 16, four coupling screws 50 are screwed from the inside of a cabin into each of screw holes 46 formed at respective tips of four stay members 38 extending toward the peripheral side from the coupling plate, and the tips are brought in pressure-contact with the inner surface of a windshield 18 through a cushion member 56, and a constraining load along the thickness direction is applied to the coupling plate 28 through the four stay members 38. By this, the coupling plate 28 receiving the constraining load from the four coupling screws 50 makes a pair of pressure-contact surfaces 32 contact with a pair of surfaces 26 to be brought in contact of respective base plates by a pressure-contact force corresponding to the constraining force, and the coupling plate 28 is thereby fixed to the base plate 20 through the pair of pressure-contact surfaces 32 and the pair of surfaces 26 to be brought in pressure-contact. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mirror mounting structure for mounting a mirror assembly that holds a mirror in a passenger compartment of an automobile or the like.

  A mirror device for a driver to visually recognize the back is arranged in a passenger compartment of an automobile or the like. Such a mirror device includes, for example, a mirror assembly in which a mirror is held by a mirror case and a mirror mounting structure, and is configured by mounting the mirror assembly to the inner surface of the windshield via the mirror mounting structure.

  As such a mirror mounting structure, the one described in Patent Document 1 is known. The mirror mounting structure described in Patent Document 1 includes a metal base plate, a linear spring, and a base inner (connection plate). The base plate is a pressure contact surface in which both end surfaces along the width direction are inclined outward, and the back surface side is bonded to the inner surface of the windshield with an adhesive. The connecting plate is provided with a socket portion into which the base plate can be inserted at the end portion on the windshield side, and inclined surfaces inclined in the same direction as the pressure contact surface at both ends in the width direction in the socket portion. (Press contact surface) is provided. Further, the base inner is provided with a socket portion to which a substantially spherical pivot portion provided at a stay base end portion of the mirror assembly is rotatably connected.

The linear spring is integrally formed with a curved portion curved in a U-shape and a pair of straight portions extending from both ends of the curved portion. The linear spring has a curved portion fitted on the outer peripheral side of the socket portion of the base inner. The linear spring extends the pair of linear portions into the grooves formed in the pair of inclined surfaces of the connecting plate, respectively, and causes the pair of pressure contact surfaces of the base plate to be elastically (restored) along the bending direction. Each is in pressure contact. Thus, in the mirror mounting structure, the connecting plate is connected to the base plate via the linear spring, and the mirror assembly is pivotally connected to the connecting plate.
International Publication WO 03/041999

  However, in the mirror mounting structure described in Patent Document 1, since the connection plate is connected to the base plate via a linear spring that is an elastic material, the connection rigidity between the connection plate and the base plate is low. For this reason, when vibration is transmitted from the windshield (vehicle body) side to the mirror mounting structure during driving of the automobile, this vibration is amplified by the mirror mounting structure and transmitted to the mirror assembly, so that the mirror assembly receives input vibration. However, large-amplitude vibration may occur and the rear visibility by the mirror may deteriorate. Such a phenomenon becomes more prominent due to the occurrence of a resonance phenomenon, particularly when the frequency of vibration transmitted from the vehicle body side matches the eigenvalue (resonance frequency) of the mirror mounting structure and the mirror assembly.

  In addition, in the conventional mirror mounting structure, without using an elastic material such as a linear spring, a screw hole penetrating in the thickness direction is formed in the central portion of the connecting plate, and a screw is screwed into this screw hole. In some cases, the connecting plate is connected and fixed to the base plate by pressing the tip portion of the connecting plate to the base plate and by pressing a pair of inclined surfaces (pressing surfaces) of the connecting plate to a pair of pressure-contact surfaces of the base plate. However, with such a mirror mounting structure, it is difficult to press the entire pressure contact surface of the connection plate uniformly with the pressure contact surface of the base plate with a sufficiently large pressure contact force, so that the connection rigidity between the base plate and the connection plate is sufficient. It is difficult to make it expensive.

  An object of the present invention is to provide a mirror mounting structure that can sufficiently suppress the vibration transmission from the vehicle body side to the mirror assembly by taking into account the above-mentioned facts and making the coupling rigidity between the base plate and the coupling plate sufficiently high. is there.

  In order to solve the above problems, a mirror mounting structure according to claim 1 of the present invention is a mirror mounting structure for mounting a mirror assembly provided with a mirror in a vehicle interior, and the back surface side is fixed to the vehicle interior surface. A base plate having pressure-contact surfaces in which both end surfaces along the width direction are inclined outward in the width direction with respect to the thickness direction from the back surface side to the front surface side, and a socket into which the base plate is removably inserted And a connecting plate in which both side surfaces along the width direction in the socket portion are formed into pressure contact surfaces that are inclined to correspond to the pressure contact surfaces and are in surface contact with the pressure contact surfaces, respectively. A bracket member in which one end portion along the thickness direction is fixed to the connection plate and a mirror assembly is rotatably connected to the other end portion; and the connection plate A plurality of stay members fixed to the connecting plate so as to extend to the outer peripheral side and having a screw hole penetrating in the thickness direction at the tip, and screw holes of the plurality of stay members And a constraining load in a direction away from the vehicle interior surface along the thickness direction on the connecting plate via the plurality of stay members. And a plurality of screw members to be acted on.

  In the mirror mounting structure according to the first aspect, the plurality of screw members are respectively screwed from the vehicle interior side into the screw holes formed in the tip portions of the plurality of stay members extending from the connecting plate to the outer peripheral side. Rarely, the tip end part is brought into pressure contact with the vehicle interior surface, and a restraining load is applied to the connection plate in the direction away from the vehicle interior surface along the thickness direction via the plurality of stay members. The connecting plate that receives the restraining load causes the pair of press contact surfaces to be in pressure contact with the pair of press contact surfaces of the base plate with a press contact force corresponding to the restraining load, so that the connecting plate is connected via the pair of press contact surfaces and the press contact surface. Fixed to the base plate.

  At this time, if the restraining load transmitted from the plurality of connection screws to the connection plate is sufficiently large, the pair of pressure contact surfaces can be brought into pressure contact with the pair of pressure contact surfaces with a sufficiently large pressure contact force. The connection rigidity between the connection plate and the base plate can be made sufficiently high.

  As a result, according to the mirror mounting structure of the first aspect, it is effective that the vibration transmitted from the vehicle body side to the mirror assembly is amplified by the connection plate connected to the base plate when the vibration is transmitted from the vehicle body side. As the connection rigidity between the connection plate and the base plate is improved, the mirror mounting structure and the eigenvalue (resonance frequency) of the mirror assembly can be shifted to the high frequency side where the amplitude is small. Even in this case, the amplitude of vibration generated in the mirror assembly can be reduced.

  The mirror mounting structure according to claim 2 of the present invention is characterized in that in the mirror mounting structure according to claim 1, the bracket member and the plurality of stay members are integrally formed on the connecting plate. To do.

  In the mirror mounting structure according to the second aspect, since the plurality of stay members are integrally formed on the connection plate, the connection plate and the plurality of stay members can be configured as one component. Manufacturing cost can be reduced.

  A mirror mounting structure according to a third aspect of the present invention is the mirror mounting structure according to the first or second aspect, wherein a cross section along a surface direction orthogonal to the thickness direction of the connecting plate is formed in a substantially rectangular shape. In addition, the four stay members are respectively disposed on diagonally extending lines in a cross section along the surface direction of the connecting plate.

  In the mirror mounting structure according to the third aspect, by arranging the four stay members on the diagonal lines in the rectangular cross section of the connecting plate, the restraining load generated by the four connecting screws is reduced to 4 Since it can be transmitted to each corner portion of the connecting plate via the stay members, if the restraining loads generated by the four connecting screws are equal to each other, a moment centered around the intersection of the diagonal lines is generated on the connecting plate. This can be prevented, and the connection plate can be prevented from being tilted with respect to the base plate due to imbalance of the restraining loads transmitted from the four connection screws.

  As a result, according to the mirror mounting structure of the third aspect, the entire pair of press contact surfaces of the connection plate can be uniformly pressed to the entire pair of press contact surfaces of the base plate. Stiffness can be effectively improved.

  A mirror mounting structure according to a fourth aspect of the present invention is the mirror mounting structure according to any one of the first to third aspects, wherein a cushion member having viscoelasticity is attached to a tip portion of the screw member, and the cushion member is provided. The tip of the screw member is pressed against the vehicle interior surface via

  In the mirror mounting structure according to the fourth aspect, the tip end portion of the screw member is pressed against the vehicle interior surface via the viscoelastic cushion member, so that the vibration from the vehicle interior surface to the connection plate is performed via the connection screw. Can be blocked by the cushion member, and vibration generated in the connecting screw, stay member and connecting plate can be reduced by the cushion member, so that the level of vibration generated in the connecting plate when transmitting vibration from the vehicle interior surface is reduced. it can.

  A mirror mounting structure according to a fifth aspect of the present invention is a mirror mounting structure for mounting a mirror assembly including a mirror in a vehicle interior, the back surface side being fixed to the vehicle interior surface and both ends along the width direction. A base plate is formed as a pressure contact surface in which the surface is inclined from the back surface side to the front surface side in the width direction with respect to the thickness direction, and a socket portion into which the base plate is removably inserted is formed. A connecting plate in which both side surfaces along the width direction in the socket portion are inclined corresponding to the pressure contact surface and are in pressure contact with the pressure contact surface, and a vehicle compartment with respect to the connection plate It is arranged inside and connected to the connecting plate while forming a gap with the connecting plate along the thickness direction, and at the end opposite to the base plate. A bracket member to which the assembly is pivotably connected, a plurality of support legs that are provided integrally with the bracket member and respectively abut on the outer peripheral side of the connection plate on the interior surface of the vehicle interior; and the bracket member to the connection plate A pair of the pressure contact surfaces are connected to each other while applying a restraining load in a direction away from the vehicle interior surface along the thickness direction to the connection plate so as to press the plurality of support legs against the vehicle interior surface. And a connecting means for press-contacting each to the pair of pressure-contact surfaces.

  In the mirror mounting structure according to the fifth aspect, the connecting means connects the bracket member to the connecting plate and applies a restraining load in a direction away from the vehicle interior surface along the thickness direction to the connecting plate, The restraining load that the connecting means exerts on the connecting plate by pressing the pair of press contact surfaces against the pair of pressed contact surfaces while pressing the plurality of support legs integrally provided with the member to the vehicle interior surface, respectively. Is sufficiently large and the rigidity of the connecting plate itself is sufficiently high, the plurality of support legs can be pressed against the vehicle interior surface with a sufficiently large pressure contact force, and the entire pair of pressure contact surfaces can be formed. Because each can be pressed against a pair of pressure contact surfaces with a uniform and sufficiently large pressure contact force, the connection rigidity between the connection plate and the base plate is sufficiently high. It can be in.

  As a result, according to the mirror mounting structure of the fifth aspect, it is effective that the vibration transmitted from the vehicle body side to the mirror assembly is amplified by the coupling plate coupled to the base plate when the vibration is transmitted from the vehicle body side. As the connection rigidity between the connection plate and the base plate is improved, the mirror mounting structure and the eigenvalue (resonance frequency) of the mirror assembly can be shifted to the high frequency side where the amplitude is small. Even in this case, the amplitude of vibration generated in the mirror assembly can be reduced.

  The mirror mounting structure according to claim 6 is the mirror mounting structure according to claim 5, wherein the coupling means faces a through hole that penetrates the bracket member along the thickness direction and the through hole. A screw hole formed in the connecting plate, a screw shaft and a head are integrally provided, the head is pressed against the surface of the bracket member, and the screw shaft passes through the through hole. And a connecting screw screwed into the screw hole.

  In the mirror mounting structure according to the sixth aspect, since the amount of the restraining load that the connecting screw acts on the connecting plate can be adjusted only by adjusting the screwing amount of the screw shaft into the screw hole. It is possible to easily adjust the pressure contact force when pressing against the vehicle interior surface and the pressure contact force when the pair of pressure contact surfaces press against the pair of pressure contact surfaces of the base plate.

  A mirror mounting structure according to claim 7 is the mirror mounting structure according to claim 5 or 6, wherein a cushion member having viscoelasticity is attached to a tip portion of the support leg, and the tip of the support leg is interposed via the cushion member. It is characterized in that the portion is pressed against the vehicle interior surface.

  In the mirror mounting structure according to the seventh aspect, the tip end portions of the plurality of support legs provided integrally with the bracket member are brought into pressure contact with the vehicle interior surface via cushioning members having viscoelasticity. The cushion member can block the vibration transmitted from the vehicle interior surface to the bracket member via the cushion, and the cushion member can reduce the vibration generated in the bracket member and the connecting plate. The level of vibration generated in the member and the connecting plate can be reduced.

  As described above, according to the mirror mounting structure of the present invention, the coupling rigidity between the base plate and the coupling plate is sufficiently high, and vibration transmission from the vehicle body side to the mirror assembly can be effectively suppressed.

Hereinafter, a mirror mounting structure according to an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
[Configuration of the embodiment]
1 and 2 show a mirror device to which the mirror mounting structure according to the first embodiment of the present invention is applied. The mirror device 10 is used as an inner mirror in an automobile. As shown in FIG. 2, a mirror assembly 12 having a mirror 14 for rearward viewing and a mirror for attaching the mirror assembly 12 to a windshield. An attachment structure 16 is provided.

  As shown in FIG. 1, the mirror mounting structure 16 includes a metal base plate 20 that is fixed to the inner surface of a windshield 18 (see FIG. 2) by bonding, a connecting plate 28 that is connected to the base plate 20, A stay member 38 and a bracket member 34 that are integrally formed with the connecting plate 28 are provided.

  The thickness of the base plate 20 is substantially constant, and the shape in plan view is formed in a substantially rectangular shape having a predetermined slide direction (arrow S direction) as a longitudinal direction. The base plate 20 has an adhesive surface 22 whose back surface is bonded to the windshield 18. The base plate 20 has both end faces along the width direction (arrow W direction) orthogonal to the longitudinal direction thereof inclined toward the width direction outward with respect to the thickness direction (arrow T direction) from the adhesive surface 22 toward the surface side. The pressure contact surface 26 is used.

  The connection plate 28 is disposed on the outer peripheral side of the base plate 20 in plan view, and is formed in a substantially square shape as a whole as shown in FIG. The connecting plate 28 is formed with a socket portion 30 extending along the sliding direction at the center in the width direction. The socket part 30 is formed by cutting the connecting plate 28 into a rectangular shape, and one end side along the sliding direction opens to the end face (rear end face) of the connecting plate 28. Here, the dimension (length) along the sliding direction of the socket part 30 is longer than that of the base plate 20, and the dimension (width) along the width direction is slightly wider than that of the base plate 20.

  As shown in FIG. 4, a pressure contact surface 32 having an inclination angle substantially equal to the pressure contact surface 26 of the base plate 20 is formed on the connection plate 28 at the upper ends of both side surfaces in the width direction in the socket portion 30. ing. Each of the pair of press contact surfaces 32 is formed over the entire length of both side surfaces in the width direction in the socket portion 30. The distance along the width direction between the pair of pressure contact surfaces 32 corresponds to the distance between the pair of pressure contact surfaces 26 in the base plate 20. In the mirror mounting structure 16, as shown in FIG. 3, the base plate 20 can be inserted into the socket portion 30 along the sliding direction from one end (opening end) side of the socket portion 30.

  As shown in FIG. 1, the connecting plate 28 is integrally formed with four stay members 38 that extend from the corners on the outer peripheral surface to the outer peripheral side. Each of the stay members 38 is formed in a plate shape having a substantially constant thickness, and the shape in plan view is a substantially isosceles triangle whose width is narrowed from the proximal end side toward the distal end side. Here, the four stay members 38 are respectively arranged on diagonal lines in the cross section of the connecting plate 28 formed in a substantially square shape in plan view. That is, the four stay members 38 are radially arranged around the intersection of a pair of diagonal lines in the connecting plate 28.

  As shown in FIG. 3, the bracket member 34 is integrally formed with a main body portion 40 that protrudes from the center of the back surface of the connecting plate 28 into the vehicle interior. The main body portion 40 is formed in a hollow box shape having an opening on one end side in the sliding direction, and is formed in a fan shape that is gently curved toward the other end side in the sliding direction with respect to the thickness direction in a side view. The bracket member 34 is formed with a columnar arm portion 42 that protrudes from a central portion of the front end surface of the main body portion 40 on the vehicle interior side, and a substantially spherical pivot portion 44 is integrally formed at the front end portion of the arm portion 42. Is formed.

  As shown in FIG. 4, the four stay members 38 are respectively provided with screw holes 46 penetrating in the thickness direction at the tip portions, and connection screws 50 are respectively provided in these screw holes 46. It is screwed. The connecting screw 50 is provided with a round bar-shaped screw shaft 52 having a thread formed on the outer peripheral surface, and a head 54 having a larger diameter than the screw shaft 52 is integrally formed at the base end portion of the screw shaft 52. Is formed. In addition, a cushion member 56 formed in a cap shape is fitted into the distal end portion of the screw shaft 52 in the connection screw 50. The cushion member 56 is formed of an elastic material having viscoelasticity, for example, a rubber material such as NR (natural rubber) or silicone rubber.

  In the mirror mounting structure 16, after the bonding surface 22 of the base plate 20 is bonded to a predetermined portion on the inner surface of the windshield 18, the base plate 20 is inserted into the socket portion 30 through the opening end of the socket portion 30, thereby connecting the base plate 20. The plate 28 is connected to the base plate 20. At this time, as shown in FIG. 4, the screwing amount of each connection screw 50 into the screw hole 46 is set so that the tip ends of the four connection screws 50 are not pressed against the inner surface of the windshield 18. It is adjusted in advance. Specifically, the screwing amount of the connecting screw 50 is adjusted in advance so that a gap is generated between at least one of the cushion member 56 and the windshield 18 and between the pressure contact surface 32 and the pressure contact surface 26.

  In the mirror mounting structure 16, by screwing the four connecting screws 50 equally into the screw holes 46 from the state shown in FIG. 4, the screw shaft is interposed via the cushion member 56 as shown in FIG. 52 is pressed against the inner surface of the windshield 18, and a load (restraint load) in a direction away from the windshield 18 along the axial direction (thickness direction) is caused by the connecting screws 50 via the stay member 38. It is transmitted to the connecting plate 28. At this time, the pressure contact force of the screw shaft 52 with respect to the windshield 18 via the cushion member 56 increases as the amount of screwing of the connection screw 50 increases, and the restraining load transmitted to the connection plate 28 by each connection screw 50 is increased. To increase.

  In the mirror mounting structure 16, the connecting plate 28 to which the restraining load is transmitted from each connecting screw 50 brings the pair of press contact surfaces 32 into press contact with the pair of press contact surfaces 26 of the base plate 20 with a press contact force corresponding to the restraint load. At this time, as shown in FIG. 5, the pressure contact surface 32 is in pressure contact with the area on the vehicle interior side (lower end side) of the pressure contact surface 26 in a surface contact state.

  Therefore, in the mirror mounting structure 16, after the base plate 20 is inserted into the socket portion 30, the amount of screwing of the four connecting screws 50 into the screw holes 46 is adjusted as appropriate, and the screw shaft is inserted via the cushion member 56. The front end of 52 is pressed against the windshield 18 with a sufficiently large pressing force, and the pair of pressing surfaces 32 are pressed against the pair of pressed surfaces 26 with a sufficiently large pressing force, whereby the cushion member 56 and the windshield are pressed. The movement of the connecting plate 28 in the sliding direction and the width direction with respect to the base plate 20 is restricted by the frictional force generated between the base plate 20 and the frictional force generated between the base plate 20 and the frictional force generated between the pressure contact surface 32 and the pressed contact surface 26.

  In the mirror mounting structure 16, the tip of the screw shaft 52 screwed into the screw hole 46 is pressed against the windshield 18 via the cushion member 56, and the pressure contact surface 32 and the surface to be covered are inclined with respect to the thickness direction. When the pressure contact surfaces 26 are in pressure contact with each other, the movement of the connecting plate 28 along the thickness direction with respect to the base plate 20 is also restrained.

  As shown in FIG. 1, the mirror assembly 12 is provided with a mirror case 62 that holds the mirror 14 (see FIG. 2). The mirror case 62 is formed in a substantially rectangular plate shape as a whole, and the mirror 14 is fitted on the surface side. The mirror case 62 is formed with a columnar arm portion 64 projecting toward the windshield 18 at the center of the back surface, and a substantially spherical pivot portion 66 is integrally formed at the tip of the arm portion 64. Yes.

  The mirror assembly 12 includes a connecting stay 68 that is formed in a substantially cylindrical shape as a whole. The connecting stay 68 has a two-divided structure along the width direction. A split piece 70 is provided on one end side in the width direction, and a split piece 72 is provided on the other end side. Each of the split pieces 70 and 72 has a plane-shaped joining surfaces 74 and 76 on the inner side in the width direction, and a plurality of pieces (in this embodiment, in the state where these joining surfaces 74 and 76 are abutted with each other). The connecting stay 68 is configured by being fastened and fixed by four screws 78.

  The split piece 70 is formed with a concave spherical first bearing surface 80 that opens at one end face of the joining surface 74 and the connecting stay 68, and a concave spherical shape that opens at the other end face of the joining surface 74 and the connecting stay 68. The second bearing surface 82 is formed. The split piece 72 is also formed with a concave spherical first bearing surface 84 that opens to one end face of the joining surface 76 and the connecting stay 68, and a concave spherical face that opens to the other end face of the joining face 76 and the connecting stay 68. A second bearing surface 86 is formed. Here, in a state where the split pieces 70 and 72 are abutted with each other, the first bearing surfaces 80 and 84 constitute a socket portion 88 that accommodates the pivot portion 44, and the second bearing surfaces 82 and 86 accommodate the pivot portion 66. The socket part 90 is configured.

  In the mirror assembly 12, when the split pieces 70 and 72 are fastened and fixed by the screws 78, the pivot portion 44 is accommodated in the socket portion 88 and the pivot portion 66 is accommodated in the socket portion 90. As a result, one end portion of the connecting stay 68 is pivotally connected to the pivot portion 44 via the socket portion 88, and the other end portion of the connecting stay 68 is pivotally connected to the pivot portion 66 via the socket portion 90. Is done.

  Therefore, in the mirror device 10, the angle of the mirror case 62 can be adjusted in the turning direction (vertical and horizontal directions) about the pivot portion 66, and the connecting stay 68 can be adjusted in the turning direction (vertical direction and The angle can be adjusted in the horizontal direction. In the mirror device 10, when an excessive load is applied to the mirror case 62 or the connecting stay 68 from the outside, and the connecting stay 68 turns to the limit position of the turning range around the pivot portion 44, one end side of the connecting stay 68 is a bracket member. After the contact with the main body portion 40 of 34, the connecting stay 68 falls off the pivot portion 44.

[Operation of the embodiment]
Next, the operation of the mirror mounting structure 16 according to the first embodiment of the present invention configured as described above will be described.

  In the mirror mounting structure 16 according to the present embodiment, the four connecting screws 50 are respectively inserted into the screw holes 46 formed in the tip portions of the plurality of stay members 38 extending from the connecting plate to the outer peripheral side from the vehicle interior side. By being screwed in, the front end portion is pressed against the inner surface of the windshield 18 via the cushion member 56 and a binding load along the thickness direction is applied to the connecting plate 28 via the four stay members 38. Since the connecting plate 28 receiving the restraining load from the four connecting screws 50 brings the pair of press contact surfaces 32 into contact with the pair of pressed contact surfaces 26 of the base plate with a press contact force corresponding to the restraint load, the pair of press contact surfaces. The connection plate 28 is fixed to the base plate 20 through the contact surface 32 and the pressed contact surface 26.

  At this time, if the restraining load transmitted from the four connecting screws 50 to the connecting plate 28 is sufficiently large, the pair of press contact surfaces 32 are brought into pressure contact with the pair of press contact surfaces 26 with a sufficiently large press force. Therefore, the connection rigidity between the connection plate 28 and the base plate 20 can be made sufficiently high.

  As a result, according to the mirror mounting structure 16, the vibration transmitted from the windshield 18 side to the mirror assembly 12 is amplified by the coupling plate 28 coupled to the base plate 20 when the vibration is transmitted from the vehicle body (windshield 18) side. This can be effectively prevented, and the eigenvalues (resonance frequencies) of the mirror mounting structure 16 and the mirror assembly 12 can be shifted to the high frequency side where the amplitude is small as the coupling rigidity between the coupling plate 28 and the base plate 20 is improved. Therefore, even when a resonance phenomenon occurs in the mirror assembly 12, the amplitude of vibration generated in the mirror assembly 12 can be reduced.

  Further, in the mirror mounting structure 16 according to the present embodiment, the four stay members 38 and the bracket member 34 are integrally formed on the connection plate 28, so that the connection plate 28, the four stay members and the bracket member 34 are provided. Since it can be configured as one part, the manufacturing cost of the apparatus can be reduced by reducing the number of parts.

  Further, in the mirror mounting structure 16 according to the present embodiment, the four stay members 38 are arranged on diagonal lines in the cross section of the connection plate 28 that is substantially square in plan view, thereby providing four connection screws. The restraining loads generated by the four connecting screws 50 can be transmitted to the four corner portions of the connecting plate 28 via the four stay members 38, respectively, so that the binding loads generated by the four connecting screws 50 are equal to each other. This prevents a moment around the intersection of the diagonal lines from being generated in the connection plate 28, and the connection plate 28 is made to move relative to the base plate 20 by imbalance of the restraining loads transmitted from the four connection screws 50. Inclination can be prevented.

  As a result, according to the mirror mounting structure 16, the entire pair of pressure contact surfaces of the connection plate can be evenly pressed to the entire pair of pressure contact surfaces of the base plate, respectively, so that the connection rigidity between the connection plate 28 and the base plate 20 can be increased. It can be improved effectively.

  Further, in the mirror mounting structure 16, the front end portion of the screw shaft 52 of the connecting screw 50 is pressed against the inner surface of the windshield 18 via the cushion member 56 having viscoelasticity, whereby the windshield 18 is connected via the connecting screw 50. Since the cushion member 56 can block the vibration from being transmitted to the connecting plate 28, the vibration generated in the connecting screw 50, the stay member 38 and the connecting plate 28 can be reduced by the damping of the cushion member 56. The level of vibration generated in the connecting plate 28 when the vibration is transmitted can be reduced.

In the mirror mounting structure 16 according to the present embodiment, the four stay members 38 are integrally formed with the bracket member 34. However, the number of the stay members 38 is not limited to four, and a plurality of ( 2 or more). However, in order to press the entire pair of press contact surfaces 32 to the entire pair of press contact surfaces 26 with a uniform press contact force, the number of stay members 38 is three or more, and the stay members 38 are bracket members. 34 is preferably arranged symmetrically with respect to the center point along the width direction and the slide direction.
(Second Embodiment)
[Configuration of the embodiment]
FIG. 6 shows a mirror device to which the mirror mounting structure according to the second embodiment of the present invention is applied. This mirror device 110 is also used as an inner mirror in an automobile, like the mirror device 10 according to the first embodiment. Note that in the mirror device 110 according to the present embodiment, the same parts as those of the mirror device 10 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The mirror device 110 includes a mirror mounting structure 116 for mounting the mirror assembly 12 to the windshield. The mirror mounting structure 116 includes a connecting plate 128 disposed outside the base plate 20 in plan view. The connecting plate 128 is formed in a rectangular shape as a whole, and a socket portion 30 extending along the sliding direction is formed in the center portion in the width direction. In the mirror mounting structure 116, a bracket member 134 is disposed on the vehicle interior side with respect to the base plate 20 and the connection plate 128. The bracket member 134 is provided with a plate-like flange portion 136 formed in a substantially square shape having an area larger than that of the connection plate 128 in plan view. Supporting legs 138 are integrally formed on the flange portion 136 so as to protrude toward the windshield 18 at each corner portion on the back surface side.

  The support leg 138 has an L-shaped cross section in plan view, and includes a plate portion 140 and a plate portion 142 that extend in the width direction and the slide direction, respectively, around the corner portion of the flange portion 136. Each of these plate portions 140 and 142 has a substantially right-angled triangle shape with the flange portion 136 side as a base when viewed from the side. The support leg 138 is formed with a flat cushion mounting portion 144 at the front end portion on the windshield 18 side, and a cushion member 146 formed in a substantially hemispherical shape is fixed to the cushion mounting portion 144. . The cushion member 146 is formed of an elastic material having viscoelasticity, for example, a rubber material such as NR (natural rubber) or silicone rubber.

  The bracket member 134 is integrally formed with a main body portion 40, an arm portion 42, and a pivot portion 44 that protrude from the center of the surface of the flange portion 136 into the vehicle interior.

  A plurality of (six in this embodiment) through holes 148 are formed in the flange portion 136 of the bracket member 134 along the thickness direction on the inner peripheral side of the four support legs 138. Specifically, three through holes 148 are formed in each of the flange portions 136 at both end sides along the width direction, and these three through holes 148 are linearly formed along the slide direction. It is arranged. On the other hand, as shown in FIGS. 7 and 8, the connection plate 28 has a plurality (six in this embodiment) of screw holes so as to match the plurality of through holes 148 in the flange portion 136. 149 is drilled.

  The mirror mounting structure 116 includes a plurality (six in this embodiment) of connecting screws 150 that can be screwed into the screw holes 149 of the connecting plate 128. The connecting screw 150 is provided with a round bar-shaped screw shaft 152 having a thread formed on the outer peripheral surface, and a head 154 having a larger diameter than the screw shaft 152 is integrally formed at the base end portion of the screw shaft 152. Is formed. Here, the connection screw 150, the through hole 148, and the screw hole 149 constitute connection means for connecting the bracket member 134 to the connection plate 28.

  The six connecting screws 150 respectively screw the screw shafts 152 penetrating through the through holes 148 into the screw holes 149 and bring the heads 154 into contact with the surface portions of the flange portions 136. Accordingly, the bracket member 134 is connected to the connection plate 128 via the six connection screws 150.

  In the mirror mounting structure 116, after the base plate 20 is bonded to the windshield 18, the base plate 20 is inserted into the socket portion 30 through the open end of the socket portion 30, whereby the connecting plate 128 is connected to the base plate 20. . At this time, as shown in FIG. 7, the leading end portions of the four support legs 138 are not brought into pressure contact with the windshield 18 via the cushion members 146, respectively. The amount of screwing is adjusted in advance. Specifically, the amount of screwing of each connecting screw 150 is adjusted in advance so that a gap is generated between at least one of the cushion member 146 and the windshield 18 and between the pressure contact surface 32 and the pressure contact surface 26. .

  In the mirror mounting structure 116, from the state shown in FIG. 7, the six connecting screws 150 are equally screwed into the screw holes 149, so that the cushion member 146 is attached to the windshield 18 as shown in FIG. At the same time, the pair of press contact surfaces 32 of the connecting plate 128 contact the pair of press contact surfaces 26 of the base plate 20. When the six connecting screws 150 are further screwed from this state, the tip ends of the support legs 138 are pressed against the windshield 18 through the cushion members 146 and are axially (thickly) connected to the connecting plate 128 by the connecting screws 150. A restraining load directed toward the bracket member 134 is transmitted along the vertical direction), and the pair of pressure contact surfaces 32 are in pressure contact with the pair of pressure contact surfaces 26 in a surface contact state, respectively. At this time, as the amount of screwing of the connecting screw 150 increases, the pressure contact force of the support leg 138 to the windshield 18 increases, and the pressure contact force of the pressure contact surface 32 to the pressure contact surface 26 increases.

  Therefore, in the mirror mounting structure 116, after the base plate 20 is inserted into the socket portion 30, the amount of screwing of the six connecting screws 150 into the screw holes 149 is appropriately adjusted, and the support leg is interposed via the cushion member 146. The front end portion of 138 is pressed against the windshield 18 with a sufficiently large pressing force, and the pair of pressed surfaces 32 are pressed against each other with a sufficiently large pressing force, whereby the cushion member 56 and the windshield 18 are pressed. The movement of the connecting plate 128 in the sliding direction and the width direction with respect to the base plate 20 is restricted by the frictional force generated between the base plate 20 and the frictional force generated between the pressure contact surface 32 and the pressure contact surface 26.

  Further, in the mirror mounting structure 116, the tip end portion of the support leg 138 is pressed against the windshield 18 via the cushion member 146, and the pressure contact surface 32 and the pressure contact surface 26 that are inclined with respect to the thickness direction are pressed against each other. Accordingly, the movement of the connecting plate 128 along the thickness direction with respect to the base plate 20 is also restrained.

  In the mirror device 110 according to the present embodiment, similarly to the mirror device 10 according to the first embodiment, the mirror assembly 12 is pivotally connected to the pivot portion 144 in the mirror mounting structure 116.

[Operation of the embodiment]
Next, the operation of the mirror mounting structure 116 according to this embodiment configured as described above will be described.

  In the mirror mounting structure 116 according to the present embodiment, a plurality of connecting screws 150 screwed into the screw holes 149 connect the bracket member 134 to the connecting plate 128 and apply a restraining load to the connecting plate 128, thereby A plurality of support legs 138 formed integrally with the member 134 are in pressure contact with the windshield 18, respectively, and the pair of pressure contact surfaces 32 are in pressure contact with the pair of pressure contact surfaces 26, whereby the connection screw 150 is attached to the connection plate. If the restraining load to be applied is sufficiently large and the rigidity of the coupling plate 128 itself is sufficiently high, the plurality of support legs 138 can be pressed against the windshield 18 with a sufficiently large pressing force, respectively. The entire pair of pressure contact surfaces of the connecting plate 128 are uniformly and sufficiently large in pressure contact force. It can be made to pressure contact with the pair of the pressed surface 26 in Supureto 20, the coupling rigidity of the connecting plate 128 and the base plate 20 can be made sufficiently high.

  As a result, according to the mirror mounting structure 116, when vibration is transmitted from the windshield 18 side, vibration transmitted from the windshield 18 side to the mirror assembly 12 is amplified by the coupling plate 128 coupled to the base plate 20. Since the eigenvalues (resonance frequencies) of the mirror mounting structure 116 and the mirror assembly 12 can be shifted to the high frequency side where the amplitude is small, as the coupling rigidity between the coupling plate 128 and the base plate 20 is improved. Even when a resonance phenomenon occurs in the assembly 12, the amplitude of vibration generated in the mirror assembly 12 can be reduced.

  In the mirror mounting structure 116, the amount of restraining load that the connecting screw 150 acts on the connecting plate 128 can be adjusted only by adjusting the screwing amount of the connecting screw 150 into the screw hole 149. The pressing force when the plurality of support legs 138 are pressed against the windshield 18 and the pressing force when the pair of pressing surfaces 32 of the connecting plate 128 are pressed against the pair of pressed surfaces 26 of the base plate 20 can be easily adjusted. .

  Further, in the mirror mounting structure 116, the front ends of the plurality of support legs 138 formed integrally with the bracket member 134 are pressed against the windshield 18 via the cushion members 146, respectively. Transmission of vibration from the glass 18 to the bracket member 134 can be blocked by the cushion member 146, and vibration generated in the bracket member 134 and the connecting plate 128 can be reduced by the cushion member 146. Therefore, when vibration is transmitted from the windshield 18 The level of vibration generated in the bracket member 134 and the connection plate 128 can be reduced.

  Although the mirror mounting structures 16 and 116 according to the present embodiment are used for mounting the mirror assembly 12 to the windshield 18, other accessory parts such as a liquid crystal display device and an ETC unit are used as a front instead of the mirror assembly 12. It may be used for attaching to the glass 18.

It is a disassembled perspective view which shows the structure of the mirror apparatus to which the mirror attachment structure concerning the 1st Embodiment of this invention was applied. (A) is a side view of the mirror device shown in FIG. 1, and (B) is a front view of a connecting stay in the mirror device. It is a perspective view which shows the structure of the mirror attachment structure shown by FIG. It is sectional drawing along the width direction of the mirror attachment structure shown by FIG. 1, and has shown the state before tightening of a connection screw. It is sectional drawing along the width direction of the mirror attachment structure shown by FIG. 1, and has shown the state after tightening of a connection screw. It is a disassembled perspective view which shows the structure of the mirror apparatus to which the mirror attachment structure concerning the 1st Embodiment of this invention was applied. It is sectional drawing along the width direction of the mirror attachment structure shown by FIG. 6, and has shown the state before tightening of a connection screw. It is sectional drawing along the width direction of the mirror attachment structure shown by FIG. 6, and has shown the state after tightening of a connection screw.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mirror apparatus 12 Mirror assembly 14 Mirror 16 Mirror mounting structure 18 Windshield (vehicle interior surface)
20 Base plate 28 Connection plate 30 Socket portion 32 Pressure contact surface 32 Pressure contact surface 34 Bracket member 38 Stay member 46 Screw hole 56 Cushion member 110 Mirror device 116 Mirror mounting structure 128 Connection plate 134 Bracket member 138 Support leg 146 Cushion member 148 Through hole ( Connecting means)
149 Screw hole (connecting means)
150 Connection screw (connection means)
152 Screw shaft (connection screw)
154 head (connection screw)

Claims (7)

A mirror mounting structure for mounting a mirror assembly including a mirror in a vehicle interior,
A base plate whose back side is fixed to the vehicle interior surface, and whose both end surfaces along the width direction are pressure-contact surfaces that incline outward in the width direction with respect to the thickness direction from the back side to the surface side,
A socket part into which the base plate is removably inserted is formed, and both side surfaces along the width direction in the socket part have slopes corresponding to the pressure contact surface to the pressure contact surface. A connecting plate which is a pressure contact surface in surface contact;
A bracket member in which one end portion along the thickness direction is fixed to the connection plate and a mirror assembly is rotatably connected to the other end portion;
A plurality of stay members fixed to the connection plate so as to extend from the connection plate to the outer peripheral side, and having a screw hole penetrating in the thickness direction at the distal end portion;
The screw holes of the plurality of stay members are respectively screwed from the vehicle interior side to bring the tip portion into pressure contact with the vehicle interior surface, and the vehicle interior surface along the thickness direction is connected to the connecting plate via the plurality of stay members. A plurality of screw members for applying a restraining load in a direction away from
A mirror mounting structure characterized by comprising:   The mirror mounting structure according to claim 1, wherein a plurality of the stay members are integrally formed on the connecting plate.   The cross section of the connecting plate along the surface direction orthogonal to the thickness direction is formed in a substantially rectangular shape, and the four stay members are on the extension of the diagonal line in the cross section of the connecting plate along the surface direction. The mirror mounting structure according to claim 1, wherein the mirror mounting structure is disposed respectively.   4. A cushion member having viscoelasticity is attached to a distal end portion of the screw member, and the distal end portion of the screw member is pressed against a vehicle interior surface via the cushion member. The mirror mounting structure described in the item. A mirror mounting structure for mounting a mirror assembly including a mirror in a vehicle interior,
A base plate whose back side is fixed to the vehicle interior surface, and whose both end surfaces along the width direction are pressure-contact surfaces that incline outward in the width direction with respect to the thickness direction from the back side to the surface side,
A socket part into which the base plate is removably inserted is formed, and both side surfaces along the width direction in the socket part have a slope corresponding to the pressure contact surface and face the pressure contact surface. A connecting plate which is a pressure-contacting surface,
It is arranged on the vehicle interior side with respect to the connection plate, and is connected to the connection plate while forming a gap with the connection plate along the thickness direction, and the end opposite to the base plate A bracket member pivotally coupled to the mirror assembly;
A plurality of support legs that are provided integrally with the bracket member and abut on the outer peripheral side of the connecting plate on the vehicle interior surface;
The bracket member is coupled to the coupling plate, and a restraining load is applied to the coupling plate in a direction away from the vehicle interior surface along the thickness direction, so that the plurality of support legs are pressed against the vehicle interior surface. Connecting means for pressing the pair of pressure contact surfaces to the pair of pressure contact surfaces, respectively,
A mirror mounting structure characterized by comprising: The connecting means includes
A through hole penetrating the bracket member along the thickness direction;
A screw hole formed in the connecting plate so as to face the through hole;
A screw shaft and a head are provided integrally, the head is pressed against the surface side of the bracket member, and the screw shaft penetrates the through hole and is screwed into the screw hole;
6. The mirror mounting structure according to claim 5, further comprising:   The mirror attachment according to claim 5 or 6, wherein a cushion member having viscoelasticity is attached to a distal end portion of the support leg, and the distal end portion of the support leg is pressed against a vehicle interior surface via the cushion member. Construction.

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