JP2019001437A - Inner rear visual recognition device for vehicle - Google Patents

Abstract

To enable a stay and a mirror assembly to be reliably mounted in a predetermined position in a vehicle body via a mounting mechanism so as not to be swung by vibrations of a vehicle.SOLUTION: The present invention includes a mounting mechanism 2, a stay 3, and a mirror assembly 4. The mounting mechanism 2 has a screw 5, a base 6, and a mounting member 7. The screw 5 has a screw part 51, and an abutting part 52. An abutting surface 53 of the abutting part 52 is provided with a recess 54. Consequently, the present invention enables the stay 3 and the mirror assembly 4 to be reliably mounted in a predetermined position on front window glass 20 via the mounting mechanism 2 so as not to be swung by vibrations of a vehicle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an inner rear visual recognition device for a vehicle.

  Examples of the vehicle inner rear visual recognition device that is provided in the vehicle and visually recognizes the rear of the vehicle include those shown in Patent Literature 1 and Patent Literature 2. The inside mirror device of Patent Document 1 includes a base, a spring member, an attachment mechanism including a screw and a presser plate, a stay, and a mirror assembly attached to the stay, and an engagement convex portion is provided on the base. The spring member is provided with an engaging portion. In the inside mirror device of Patent Document 1, the base is fixed to the front window glass by an adhesive, mechanical fixing means, or the like, the spring member is fixed to the stay by a screw and a presser plate, and the spring protrusion is fixed to the engaging protrusion of the base. By elastically engaging the engaging portion, the stay and the mirror assembly are attached to the windshield through the attachment mechanism.

  The inner mirror device of Patent Document 2 includes an attachment means including a base, a spring member, and a screw, a stay, and a mirror assembly attached to the stay, the base includes an engaging portion, and the spring member is flexible. And a hook portion. In the inner mirror device of Patent Document 2, the base is fixed to the front window with an adhesive, the spring member is fixed to the stay with a screw, and the hook portion of the spring member is elastically engaged with the engaging portion of the base. The stay and mirror assembly are attached to the front window via attachment means.

JP 2000-219083 A JP 2003-146134 A

  In such a vehicle inner rear view device, the stay (stay) and the mirror assembly are securely attached to the front window glass (front window) via the attachment mechanism (attachment means) at a predetermined position and loosened by the vibration of the vehicle. It is important that the screw and the mating part (press plate, stay) are attached so as not to be displaced.

  The problem to be solved by the present invention is that the stay and the mirror assembly are securely attached to the vehicle body via the mounting mechanism at a predetermined position and are not loosened by the vibration of the vehicle, or the screw and the counterpart part are displaced. An object of the present invention is to provide a vehicular inner rear view device that can be attached so as not to be attached.

  The vehicle inner rear view device of the present invention includes an attachment mechanism, a stay having one end attached to the vehicle body via the attachment mechanism, and a mirror assembly attached to the other end of the stay. A fixing member fixed to the vehicle body, and a mounting member having one end of the stay attached thereto and attached to the fixing member via a screw, the screw being screwed into the mounting member And a contact portion that contacts the fixing member, and a concave portion is provided in a central portion of the contact surface that contacts the fixing member of the contact portion.

  In the vehicular inner rear viewing device of the present invention, it is preferable that the concave portion has a circular arc shape in cross section.

  In the vehicle inner rear view device according to the present invention, the fixing member and the mounting member are screwed into the mounting member and the annular contact surface of the screw is brought into contact with the fixing member. It is preferable that an engaging portion that is detachably engaged with each other is provided.

  In the vehicle inner rear view device according to the present invention, the stay and the mirror assembly are securely attached to the vehicle body via the mounting mechanism at a predetermined position and are not loosened by the vibration of the vehicle, or the screw and the counterpart component are It can be installed so that it does not slip.

FIG. 1 is a partial longitudinal sectional view showing an embodiment of a vehicle inner rear view device according to the present invention. FIG. 2 is a side view showing a use state. FIG. 3 is a vertical cross-sectional view (a cross-sectional view taken along the line III-III in FIG. 1) showing the main part. FIG. 4 is an explanatory view showing a screw. (A) is a front view which shows a screw. (B) is a bottom view (B arrow view in (A)) which shows a screw. FIG. 5 is an explanatory diagram showing a use state. (A) is a longitudinal cross-sectional explanatory drawing which shows a part of screw and base concerning this embodiment. (B) is a longitudinal cross-sectional explanatory drawing which shows a part of screw and base with which the contact surface of the front-end | tip of a screw is a plane. (C) is a longitudinal cross-sectional explanatory drawing which shows a part of screw and base where the front-end | tip of the screw is sharp.

  Hereinafter, one example of an embodiment (example) of an inner back visual recognition device for vehicles concerning this invention is explained in detail based on a drawing. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle inner rear view device according to the present invention is mounted on a vehicle. Moreover, since it is schematic in drawing, main parts are shown in figure, parts other than a main part are abbreviate | omitted, and a part of hatching is abbreviate | omitted.

(Description of Configuration of Embodiment)
Hereinafter, the configuration of the vehicle inner rear visual recognition device according to this embodiment will be described.

(Description of the vehicle inner rear view device 1)
In the figure, reference numeral 1 denotes a vehicle inner rear visual recognition device according to this embodiment. The vehicle inner rear visual recognition device 1 includes an attachment mechanism 2, a stay 3, a mirror assembly 4, and a cover 80.

(Description of mounting mechanism 2)
As shown in FIGS. 1 to 3, the attachment mechanism 2 includes a screw 5, a base 6 as a fixing member, and an attachment member 7. One surface (upper surface) of the base 6 is fixed to the vehicle body in this example by the front window glass 20 or the ceiling (not shown) by an adhesive, mechanical fixing means, or the like. In this example, the base 6 has a plate shape and is made of a metal member. Engaging portions 61 are integrally provided on the left and right sides of the base 6.

  One end of the stay 3 is attached to the attachment member 7. The attachment member 7 is detachably attached to the base 6 via the screw 5. The attachment member 7 is comprised from the elastic member in this example. A screw hole 70 is provided at the front end of the attachment member 7. Engaging portions 71 are integrally provided on both the left and right sides of the attachment member 7.

  As shown in FIGS. 4A and 4B, the screw 5 includes a head 50 at one end, a screw 51 at an intermediate portion, and a contact portion 52 at the other end. The screw part 51 is screwed into the screw hole 70 of the attachment member 7. A contact surface 53 that contacts the other surface (lower surface) of the base 6 is formed on the front end surface of the contact portion 52. A concave portion 54 is provided in the central portion of the contact surface 53. The recess 54 has a circular arc shape in cross section. The contact surface 53 has an annular shape (annular shape). The head portion 50 is provided with a groove portion 55 with which an operation tool (not shown) is engaged.

(Description of stay 3)
As shown in FIGS. 1 and 2, one end (front end) of the stay 3 is detachably attached to the front window glass 20 via the attachment mechanism 2. In this example, the stay 3 has a cylindrical shape or a substantially cylindrical shape, and is constituted by a metal member. A pivot 30 is integrally provided at one end of the stay 3. The pivot 30 is attached to the attachment member 7 via the bush 8.

(Description of cover 80)
As shown in FIGS. 1 and 2, the cover 80 is attached to the attachment member 7 and covers the attachment mechanism 2, the pivot 30 of the stay 3, and the bush 8. The cover 80 is provided with a first through hole 81 and a second through hole 82. One end of the stay 3 is inserted into the first through hole 81. The second through hole 82 faces the screw 5.

(Description of mirror assembly 4)
The mirror assembly 4 is attached to the other end (rear end) of the stay 3 via a ball joint (not shown) so as to be rotatable around the center of the ball joint. The mirror assembly 4 includes a housing 40, a knob 41, a rear viewing unit (not shown), and a switching mechanism (not shown).

  The housing 40 houses a part of the knob 41, a rear viewing unit, and a switching mechanism. The knob 41 switches the direction of the housing 40 between upward and downward via a switching mechanism. The rear visual recognition unit is configured by a display device such as a liquid crystal monitor and a mirror (half mirror) or an anti-glare mirror, and visually recognizes the rear of the vehicle.

(Description of the operation of the embodiment)
The vehicle inner rear visual recognition device 1 according to this embodiment is configured as described above, and the operation thereof will be described below.

(Description of in-vehicle equipment of the vehicle inner rear visual recognition device 1)
As shown in FIGS. 1 and 2, the base 6 of the attachment mechanism 2 is fixed to the front window glass 20 by an adhesive, mechanical fixing means, or the like. An attachment member 7 to which one end of the stay 3 is attached is attached to the base 6 so that it can be detached with a screw 5. That is, the engaging portion 71 of the attachment member 7 is temporarily engaged with the engaging portion 61 of the base 6. In this state, the operating tool is screwed through the second through hole 82 of the cover 80. Then, the contact surface 53 of the screw 5 contacts and bites the other surface of the base 6. Thereby, the engaging part 61 of the base 6 and the engaging part 71 of the attachment member 7 are fully engaged with each other.

  In this way, one end of the stay 3 is detachably attached to the front window glass 20 via the attachment mechanism 2, and the vehicle inner rear visual recognition device 1 is installed in the vehicle. The vehicle inner rear visual recognition device 1 is located on the rear side with respect to the base 6. The viewpoint (not shown) of the driver (driver) is located on the rear side with respect to the vehicle inner rear visual recognition device 1.

(Description of use of the vehicle inner rear view device 1)
The mirror assembly 4 and the stay 3 are rotated around the center O of the pivot 30 or the mirror assembly 4 is rotated around the center of the ball joint according to the driver's field of view. Thereby, the angle of the display surface or reflection surface of the rear visual recognition unit is adjusted to a state suitable for the driver's field of view.

  When the knob is switched, the direction of the display surface or the reflective surface of the rear viewing unit is switched upward or downward via the switching mechanism and the housing 40. Thereby, the image from the display surface of a display apparatus and the reflected image from the reflective surface of a mirror switch. Or the reflection image from which the reflectance of an anti-glare mirror differs is switched. The driver can visually recognize the rear of the vehicle by viewing the image from the display surface of the display device or the reflected image from the reflection surface of the mirror or the antiglare mirror.

  When a force of a predetermined value or more is applied to the mirror assembly 4, the engaging portion 71 of the mounting member 7 is disengaged from the engaging portion 61 of the base 6. As a result, the mirror assembly 4, the stay 3, the screw 5, the attachment member 7, the bush 8 and the cover 80 are detached from the base 6. As described above, the mirror 5 is screwed and the engagement portion 61 of the base 6 and the engagement portion 71 of the attachment member 7 are fully engaged with each other, whereby the mirror assembly 4 is fixed to the stay 3 and the attachment mechanism 2. It can be attached to the front windshield 20 via the detachable.

(Explanation of effect of embodiment)
The vehicle inner rear visual recognition device 1 according to this embodiment is configured and operated as described above, and the effects thereof will be described below.

  Since the vehicular inner rear visual recognition device 1 according to this embodiment is provided with the concave portion 54 on the abutting surface 53 of the abutting portion 52 of the screw 5, the abutting surface 53 of the screw 5 abuts on the base 6. By doing so, as shown in FIG. 5A, the contact surface 53 bites into the base 6, and the recess 54 grips the base 6. As a result, the vehicular inner rear visual recognition device 1 according to this embodiment reliably attaches the stay 3 and the mirror assembly 4 to a front window glass 20 as a vehicle body via a mounting mechanism 2 at a predetermined position. Can be attached so that the screw 5 and the mating part (base 6) do not shift. Moreover, since the vehicle inner rear visual recognition device 1 according to this embodiment is provided with the concave portion 54 in the contact surface 53 of the contact portion 52 of the screw 5, that is, the front end surface of the contact portion 52 of the screw 5, The area of the contact surface 53 and the recess 54 surface can be increased. As a result, the vehicle inner rear visual recognition device 1 according to this embodiment can prevent buckling of the counterpart component (base 6) due to the axial force (axial tightening force) of the screw 5, and as a result, the stay 3 and the mirror assembly 4 can be attached to the windshield 20 so as not to be loosened by the vibration of the vehicle.

  Here, the screw 5A having a flat contact surface 53A shown in FIG. 5B and the screw 5B having a sharp contact surface 53B shown in FIG. 5C will be described. In the screw 5A shown in FIG. 5B, since the flat contact surface 53A comes into surface contact with the flat base 6, the screw 5A is displaced on the plane as shown by the arrow in FIG. 5B. There is. Thereby, it cannot attach to a predetermined position reliably. On the other hand, in the screw 5B shown in FIG. 5C, since the pointed contact surface 53B makes point contact with the flat base 6, the stress generated in the point contact of the base 6 due to the screwing force of the screw 5B increases. The allowable stress of the base 6 may be exceeded. In this case, the screwing force of the screw 5B is lost due to deterioration with time, and the screw 5B and the base 6 are loosened by the vibration of the vehicle, or the screw 5B and the counterpart part (base 6) are shifted.

  On the other hand, since the recessed part 54 of the screw 5 grasps the base 6 in the vehicle inner rear visual recognition device 1 according to this embodiment, it is not displaced and can be reliably attached to a predetermined position. Further, in the vehicle inner rear visual recognition device 1 according to this embodiment, since the annular recess 54 of the screw 5 abuts on the base 6, it is possible to prevent a high stress from being generated in the base 6 and to deteriorate with time. Therefore, the screwing force of the screw 5 is not lost, and it is possible to prevent the screw 5 and the base 6 from being loosened by the vibration of the vehicle, or the screw 5 and the counterpart part (base 6) to be shifted.

  In the vehicular inner rear visual recognition device 1 according to this embodiment, since the concave portion 54 of the screw 5 has a circular arc shape, the contact surface 53 surely bites into the base 6 and the concave portion 54 securely holds the base 6. Include. As a result, the vehicular inner rear visual recognition device 1 according to this embodiment securely attaches the stay 3 and the mirror assembly 4 to the front window glass 20 as the vehicle body via the mounting mechanism 2 at a predetermined position and in the vehicle. It can be attached more securely so that it does not shake due to vibration.

  Since the vehicle inner rear visual recognition device 1 according to this embodiment is provided with the engaging portions 61 and 71 on the base 6 and the attachment member 7 respectively, the stay 3 and the mirror assembly 4 are connected to the front via the attachment mechanism 2. It can be attached to the wind glass 20 so as to be easily removed. In addition, when a force of a predetermined value or more is applied to the mirror assembly 4, the stay 3, the mirror assembly 4, and the like are detached from the base 6.

(Description of example other than embodiment)
In the above-described embodiment, the concave portion 54 of the screw 5 has a circular arc shape in cross section. However, in the present invention, the recess 54 of the screw 5 may have a cross-sectional shape other than the circular arc shape.

  Moreover, in the said embodiment, the contact surface 53 of the screw 5 makes an annular shape. However, in the present invention, the contact surface 53 of the screw 5 may have a shape other than the annular shape.

  Furthermore, in the said embodiment, the contact surface 53 of the screw 5 is one. However, in the present invention, a plurality of contact surfaces 53 of the screw 5 may be provided.

  Note that the present invention is not limited to the second and second embodiments.

DESCRIPTION OF SYMBOLS 1 Vehicle inner back visual recognition apparatus 2 Mounting mechanism 20 Front window glass 3 Stay 30 Pivot 4 Mirror assembly 40 Housing 41 Knob 5, 5A, 5B Screw 50 Head 51 Screw part 52 Contact part 53, 53A, 53B Contact surface 54 Recess 55 Groove 6 Base (fixing member)
61 engaging portion 7 mounting member 70 screw hole 71 engaging portion 8 bush 80 cover 81 first through hole 82 second through hole

Claims (3)

An attachment mechanism;
A stay having one end attached to the vehicle body via the attachment mechanism;
A mirror assembly attached to the other end of the stay;
With
The attachment mechanism is
Screw,
A fixing member fixed to the vehicle body;
One end of the stay is attached, and an attachment member attached to the fixing member via the screw;
Have
The screw is
A threaded portion screwed into the mounting member;
A contact portion that contacts the fixing member;
Have
A concave portion is provided at a central portion of the contact surface that contacts the fixing member of the contact portion.
An inner rear visual recognition device for a vehicle. The recess has an arc shape in cross section.
The vehicular inner rear view device according to claim 1. The fixing member and the mounting member can be detached from each other by screwing the screw portion of the screw into the mounting member and bringing the ring-shaped contact surface of the screw into contact with the fixing member. Engaging portions are provided to engage with each other,
The inner rear visual recognition device for vehicles according to claim 1 or 2 characterized by things.

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