JPH0351232Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a back mirror for a vehicle, and more particularly to an anti-glare mirror for a vehicle in which the support angle of the mirror relative to the stay can be changed using an operating knob.

(Prior art) A mirror with a tapered cross section is provided in a resin housing, and by operating an operation knob of a toggle mechanism provided in the housing, the set angle of the mirror relative to the stay is slightly changed to allow light to enter during the day and at night. 2. Description of the Related Art Vehicle anti-glare mirrors whose angles can be changed are known. In addition, in this type of vehicle anti-glare mirror, when setting the mirror's field of view, etc., the housing is an elastic body, so when it is bent relative to the bracket as shown in Figure 9, the engagement between the bracket and the housing is There is a risk that the mirror may come off and the mirror may fall off from the housing. For this reason,
Various proposals have been made to prevent such mirrors from falling off.

For example, according to Japanese Utility Model Publication No. 53-24753, a cover plate of the bracket is interposed between the bracket and the mirror, and this cover plate is fixed to a reinforcing rib in the housing with screws. According to this structure, the cover plate can prevent the bracket from popping out. Further, for example, according to Japanese Utility Model Publication No. 53-24753, a bracket is fixed to a housing by a screw having an unthreaded portion. With this configuration, when the bracket receives force from the ball of the mounting stay, the bracket can move forward by the stroke of the unthreaded portion of the fixing screw, and this stroke prevents the force from moving the housing. It is designed to be able to absorb deflection in the width direction. Further, for example, according to Japanese Utility Model Publication No. 53-24753, protrusions formed on the bracket are inserted into holes provided in reinforcing ribs of the housing to prevent the bracket from popping out.

(Problems to be solved by the invention) However, according to the above-mentioned conventional technology, there are disadvantages such as having to prepare separate parts or making the structure complicated, which further complicates the manufacturing process. Ta.

Therefore, the object of this invention is to provide a highly reliable anti-glare mirror for a vehicle that has a simple structure and can easily prevent the housing and bracket from coming off, and also prevent the mirror from falling off. do.

(Means and actions for solving the problem) In order to achieve this purpose, according to this invention,
A shallow box-shaped resin housing 1 having a front opening 11, a mirror 3 with a tapered cross section supported on the inner edge of the opening 11 of the housing 1, a bracket engaging portion at one end, and a bracket engaging portion at the other end. a stay 2 having a base 22 to be fixed; a bracket 4 having a mounting portion for the bracket engaging portion of the stay 2 and swingingly supported on the housing 1; an operation knob 5 that engages to form a toggle mechanism, protrudes from the bracket 4 to the outside of the housing 1, and is capable of changing the support angle of the mirror 3 with respect to the stay 2;
In the anti-glare mirror for a vehicle, the housing 1 includes protruding parts 18 and 19 that protrude from the rear surface of the mirror 3, and the bracket plate 42 corresponds to the protruding parts 18 and 19 of the housing 1. Contact parts 47, 48 that can be contacted
be prepared.

According to this structure, even if the housing is bent relative to the bracket due to a load, the contact piece of the bracket plate comes into contact with the protruding portion of the housing, and the bending is prevented and absorbed, and the bending does not exceed a certain level.

(Embodiments of the invention) Examples of the invention will be described below with reference to the accompanying drawings. Note that the same reference numerals in each figure indicate similar objects.

FIG. 1 is a partial sectional view of an anti-glare mirror for a vehicle according to an embodiment of this invention, and the stay 2 shown in FIG.
It also includes a housing 1 shown in FIG.
The stay 2 is substantially rod-shaped, and has a ball 21 forming a ball joint at its tip, and is slightly bent in this vicinity. The other end of the stay 2 has a base 22 for fixing to the ceiling of the vehicle. The base 22 has holes 2 for screwing the mirror onto the vehicle.
3 is formed. The housing 1 has a shallow box shape with a substantially rectangular opening 11 on the front surface, and a mirror 3 having a tapered cross section is fitted and held in a groove 12 formed on the inner periphery of the opening 11. Further, the housing 1 has a through hole 13a in the center of the upper surface thereof, through which the stay 2 passes, and a through hole 13b in the center of the lower surface of the housing 1, through which the operating knob 5, which will be described later, passes. Near the center of the interior of the housing 1 are reinforcement and bracket guide ribs 14 and 15 that extend in the vertical direction of the housing 1 and are parallel to each other.
has been launched. Further, inside the ribs 14 and 15, the opposing inner surfaces 1a of the housing 1,
Short protrusion 1 extending vertically from 1b
6, 16a, 16b, 17, 17a, and 17b are formed, respectively. The protrusions 16a, 17a each have two stripes, and the protrusions 16b, 17b each have three stripes, which are parallel to each other and substantially parallel to the aforementioned reinforcing and bracket guide ribs 14, 15. These projections 16,1
Reference numeral 7 is for swingingly supporting a bracket 4 or an operating knob 5, which will be described later, and is formed with an arcuate recess so that the bracket 4 and operating knob 5 can pivot smoothly. Further inside these protrusions 16a, 17a are protruding portions 18, 19 that are approximately parallel to these protrusions 16, 17.
is formed. These protruding portions 18 and 19 are the first
As can be seen from the figure or FIG. 3, it is formed so as to protrude behind the thick part of the mirror 3. These reinforcing ribs 14, 15, protrusions 16, 17, and protruding portions 18, 19 are each formed integrally with the housing 1 by resin molding or the like.

Between the reinforcing ribs 14 and 15, a protrusion 16
The bracket 4 is positioned so as to engage with the protrusions 16b and 17b, and the operating knob 5 is positioned so as to engage with the protrusions 16b and 17b. The bracket 4 consists of a bracket main body 41 shown in FIG. 5 and a bracket plate 42 shown in FIG.
A bracket plate 42 fixed thereto with screws 42a, 42a cooperates to hold the ball 21 of the stay 2, thereby holding the mirror at an optimal position. The bracket body 41 has a rectangular plate shape with a substantially uniform thickness, and a concave spherical part 43 for receiving the ball 21 of the stay 2 is located near one side of the central part of the bracket body 41.
is formed. This concave spherical surface portion 43 protrudes from the average thickness of the bracket body 41. A screw hole 44 into which a nut is inserted is formed on both sides of the concave spherical surface portion 43 of the bracket body 41, and the bracket body 41 and the bracket The plates 42 are screwed together. Shoulder parts 41a and 41b on both sides of the bracket main body 41
has a curved chamfer within its thickness, and engages with the projections 16 and 17 of the housing in a bearing manner. A protrusion 49 having a width smaller than the width of the bracket body 41 is formed at the center of the lower end of the bracket body 41.
A groove 4 extending in the width direction is provided at the lower end of this protrusion 49.
9a is formed. As described above, the concave spherical surface portion 4
3. The screw hole 44, the protruding portion 49, etc. can all be integrally formed by molding. The bracket plate 42 is a rectangular metal spring member, and has a concave spherical surface 46 near the center. Further, abutting portions 47 and 48 slightly extending from the main plane are integrally formed on both sides of the concave spherical surface portion 46. The contact portions 47 and 48 of the bracket plate 42 face the protruding portions 18 and 19 of the housing 1 when the bracket plate 42 is screwed and fixed to the bracket body 41 and disposed within the housing 1.

An operation knob 5 as shown in FIG. 7 is pivotally engaged with the housing 1 on the lower side of the bracket 4 as described above through a spring 6. The operating knob 5 includes an engaging portion 51 that extends in the width direction and comes into contact with the housing 1, and a knob portion 53 that projects from the center of the engaging portion 51 to the outside of the housing. A longitudinal groove 52 is formed in the thickness of the engaging portion 51, and the spring 6 is disposed in this groove 52. Furthermore, the engaging portion 51 is interrupted at a central portion corresponding to the knob portion 53, and a recess 54 is formed on the knob portion 53 side of this interrupted portion. A protrusion 49 of the bracket body 41 is engaged with the central portion of the receiving spring at such an interrupted portion.

Next, the relationships among the main components will be explained.
First, the operating knob 5 is inserted into the spring 6, the operating knob 5 is inserted through the lower hole 13b, the spring 6 is engaged with the lower part 49a of the bracket, and the bracket main body is inserted between the reinforcing ribs 14 and 15 of the housing 1. 41, so that the shoulders 41a, 41b of the bracket body 41 engage with the protrusions 16a, 17a of the housing 1, respectively, from the width direction. Furthermore, the upper part of the bracket 41a
into the protrusions 16 and 17. At this time, due to the action of the spring 6, the bracket 4 and the operation knob 5 are
constitutes a toggle mechanism, and by operating the knob portion 53 of the operation knob 5, it is possible to selectively change the support angle of the mirror 3 with respect to the stay 2. In addition, in this state, while holding the ball 21 of the stay 2 on the concave spherical surface portion 43 of the bracket body 41, the bracket plate 42 is attached to the bracket body 4.
Fasten the screw to 1. As a result, the ball 21 of the stay 2 is held between the concave spherical surfaces 43 and 46 of the bracket body 41 and the bracket plate 42, and the bracket 4 and the stay 2 form a ball joint. In detail, the bracket body 41 is first inserted and positioned into the housing 1, and the ball 21 of the stay 2 is inserted into the housing 1.
At the stage when the bracket plate 42 is arranged
Insert into the gap between 8 and 19 and attach the bracket body 4.
1 and the bracket plate 42 are screwed together.

When each component is combined in this way, the contact portion 4 of the bracket plate 42 of the bracket 4
7 and 48 are positioned so as to oppose the protruding portions 18 and 19 of the housing 1 that protrude behind the thick portion of the tapered mirror 3 as described above. Also,
At this time, the contact portions 47, 48 and the protruding portion 18,
19 so that there is a slight gap between them.

By forming members on the housing 1 and the bracket 4 that prevent the bracket from detaching from the housing 1 in this way, when the housing 1 is bent in the longitudinal direction, these members come into contact with each other, and the housing 1 It is possible to prevent the bracket from leaving the bracket.

(Effects of the invention) According to this invention, as described above, the bracket and the housing are provided with an abutment member that prevents the bracket from coming off the housing, so that the bracket can be easily removed from the housing with a simple configuration. It is possible to obtain a highly reliable anti-glare mirror for a vehicle that can prevent the mirror from coming off and also prevent the mirror from falling off.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a vehicle anti-glare mirror according to an embodiment of this invention, and FIG. 2 is a plan view of a stay that is a main part of a vehicle anti-glare mirror according to an embodiment of this invention.
FIG. 3 is a plan view a and a partial perspective view b of the housing, which is another essential part of the vehicle anti-glare mirror according to the embodiment of this invention, and FIG. 4 is a vehicle anti-glare mirror according to the embodiment of this invention. A partially cutaway front view of the glare mirror, FIG. 5 shows the bracket body, a is a front view thereof, b is a side view thereof, and FIG. 6 is a bracket plate;
a is a front view, b is a side view, FIG. 7 is an operating knob, a is a front view, b is a side view, and FIG. 8 is a main configuration of a vehicle anti-glare mirror according to an embodiment of this invention. FIG. 9 is an explanatory diagram showing the combination of elements, and FIG. 9 is an explanatory diagram showing the disadvantages of the conventional device. In the drawings, 1 is a housing, 2 is a stay,
3 is the mirror, 4 is the bracket, 5 is the operation knob, 6
is a spring, 14 and 15 are reinforcing ribs, 16 and 1
7 is a protrusion, 18 and 19 are protruding parts, 21 is a ball, 41 is a bracket body, 42 is a bracket plate, 43 is a first concave spherical part, 46 is a second concave spherical part, 47 and 48 are abutting parts It is.

Claims (1)

[Claims for Utility Model Registration] (1) A shallow box-shaped resin housing having a front opening, a mirror with a tapered cross section supported on the inner edge of the opening of the housing, and a bracket engaging portion at the tip. a stay having a base fixed to the vehicle at the other end; a bracket having a mounting portion for the bracket engaging portion of the stay and swingingly supported on the housing; and a bracket plate that engages the stay in cooperation with the bracket. and an operation knob that pivotably engages with the bracket in the housing to constitute a toggle mechanism, and that protrudes from the bracket to the outside of the housing and can change the support angle of the mirror with respect to the stay. An anti-glare mirror for a vehicle, characterized in that the housing is provided with a protruding portion that protrudes from the rear surface of the mirror, and the bracket plate is provided with an abutting portion that can come into contact with the protruding portion of the housing. mirror. (2) Utility Model Registration The anti-glare mirror for a vehicle according to claim 1, characterized in that the protruding portion of the housing is provided near the swinging engagement portion between the bracket and the housing.