JPS5959535A - Shock absorbing door mirror - Google Patents

Abstract

PURPOSE:To provide a good appearance and prevent the occurrence of sound while running through the air by covering both the front and rear ends of the hinge member of a door mirror with an extended part formed on a mirror base and also with an extended part formed on a mirror housing respectively. CONSTITUTION:A hinge member 11 is rotatably mounted through a hinge pin 9 onto the upper end of a bracket 12 which is fixed to a mirror base 1 with mounting screws 13, while also rotatably mounted around a shaft onto said mirror base 1 through said pin 9. The other end of the hinge member 11 is rotatably mounted with a hinge pin 7 onto a bracket 14 fixed to a mirror housing 3 with mounting screws 15. A tension spring 6 is attached to the bracket 12 through a lever 16. The front end (bottom in figure) of the hinge member 11 is covered by an extended part 3a of the edge of the mirror housing, while the rear end of the hinge member 11 is covered by an extended part 1a of the edge of the mirror base 1, thereby providing good appearance of the mirror as a whole.

Description

[Detailed description of the invention] The present invention relates to a buffer type door mirror.

Since door mirrors are generally installed so as to protrude to the side of the vehicle, there is a chance that they will collide with external obstacles. In the event of a collision, shock-absorbing door mirrors are used to reduce damage to the other object and to prevent damage to the door mirror itself.

FIG. 1 is a plan view showing an example of a buffer type door mirror.

1 is a mirror base fixed to four automobile bodies 2; 3 is a mirror housing supporting a mirror 4; A hinge member 5 is interposed between the mirror base 1 and the mirror housing 3, and the mirror housing 3 is urged toward the mirror base l by a tension spring 6. In this figure, the direction of travel of the vehicle is downward. The front end of the hinge member 5 is hinged to the mirror housing 3 via a hinge pin 7 and a bracket 8, and the rear end of the hinge member 5 is hinged to the mirror base 1 via a hinge pin 9 and a bracket 10. .

When a strong external force as indicated by the arrow A acts on the mirror housing 3 of the shock-absorbing door mirror configured as described above, the mirror housing 3 moves together with the hinge member 5 around the hinge pin 9 in the direction of the force indicated by the arrow A', as shown in FIG. Rotate and tilt. This tilting is carried out against the biasing force of the tension spring 6 while extending it, so that the impact from the outside in the direction of the arrow is alleviated.

Further, when receiving an external force as indicated by arrow B, the mirror housing 3 moves around the hinge pin 7 as shown in arrow B' as shown in FIG.
Lean in a direction to reduce the impact. In this case, the hinge member 5 maintains its posture in contact with the mirror base 1.

As described above, the shock-absorbing door mirror configured as shown in FIG. 1 has the function of alleviating the impact when it receives an external force. 5 is interposed and there is a slight gap, so when a car runs at high speed, air flows through the gap and generates wind noise. Moreover, since the hinge member is visible on the outside, it does not look good.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a shock-absorbing door mirror that does not generate wind noise while driving, has a good appearance, and has excellent durability.

In order to achieve the above object, the present invention provides a shock-absorbing door mirror in which a hinge member is interposed between a mirror base and a mirror housing. extends to cover the front end edge and rear end edge of the hinge member so that the mirror base and the mirror housing abut each other via the extended portion, and either the mirror base or the mirror housing When rotated in the direction away from the hinge member,
A step is formed at the tip of the extension part to create a gap between the extension part and the mating member, and the hinge member prevents rotation in the approach direction with respect to the other member of the mirror base and the mirror housing. It is characterized in that it is provided with a restricting stopper means.

Next, an embodiment of the present invention will be described with reference to FIGS. 4 to 10.

FIG. 4 is a plan view of the vicinity of the contact portion between the mirror base 1 and the mirror housing 3 of the buffer type door mirror of the present invention.

11 is a hinge member interposed between the mirror base 1 and the mirror housing 3, and 7 and 9 are hinge pins, respectively.

The vicinity of the lower end of the bracket 12 shown in the figure is fixed to the mirror base 1 with a mounting screw 13, and the vicinity of the upper end is hinged to a hinge member 11 with a hinge pin 9 and is pivoted to the mirror base 1 by the same hinge pin 9. The bracket 14 is fixed to the mirror housing 3 with a mounting screw 15, and the hinge member 11 is hinged with a hinge pin 7. Tension spring 6 is attached to bracket 12 via lever 16 and pin 17.

The front end (lower side in the figure) of the hinge member 11 extends and covers the edge of the mirror housing 3, which is a sliding member. 3a is an extension. Similarly, the rear end (upper side in the drawing) of the hinge member 11 is covered by extending the edge of the mirror base 1, which is the hinge member. 1a is an extension. As a result, on the contact surface between the mirror housing 3 and the mirror base 1, the front end side is connected through the extension part 3a, and the rear end side is connected through the extension part 1a.
Both members directly abut each other and no gap is created.

Therefore, generation of wind noise during running is prevented, and the hinge member 11 is covered with the extensions 1a and 3a and becomes invisible in appearance, improving physical appearance and improving commercial value.

However, if the mirror base 1 and the mirror housing 3 are brought into surface contact in this manner, when the mirror housing is tilted due to external force, the abutting portion will be subjected to severe friction and will be scratched. Therefore, the present invention further prevents friction during the tilting operation as follows.

In this embodiment, the mechanism for preventing scratches on the front extension 3a and the mechanism for preventing scratches on the rear extension 1a are constructed based on the same principle. They will be explained in order.

The tip of the extension part 3a is formed with a step having a dimension of 11 in the shape of protruding toward the mirror base 1, which is an abutting member. The arc indicated by the imaginary line indicates the locus of the tip of the extension portion 3a when the mirror housing 3 rotates around the hinge pin 7 in the direction of arrow B'. The abutting surface 1b of the extension portion 3a is formed into a plane that is in contact with the above-mentioned arc. As a result, when the mirror housing 3 rotates around the hinge pin 7 as shown by arrow B', a step dimension t between the extension part 3a and the mirror base 1! This will create a gap equivalent to .

However, even if the above-mentioned gap of dimension 11 occurs, when the hinge member 11 rotates around the hinge pin 9 in the direction (clockwise in the drawing) approaching the mirror base 1, the above-mentioned gap 11
disappears and direct contact causes scratches. For this reason,
In this embodiment, the gap t2 between the hinge member 11 and the bracket 12 is set to satisfy t2<V2t1 as a stopper means for restricting the clockwise rotation of the hinge member 11.

FIG. 5 shows a state in which the mirror housing 3 is tilted in the direction of arrow B. In this state, the hinge member 11 abuts against the bracket 12, and the stopper gap dimension t'2 becomes zero.

This reduction in the gap is approximately doubled near the extension 3a due to the lever action, but since the protrusion at the tip of the extension 3a rotates and separates from the mirror base 1, the step size tl
A gap corresponding to is generated, and the difference obtained by subtracting twice the stopper gap t2 from this step dimension 11, tl 2"2""
A gap approximately equal to 1 remains. In practice, this gap t1
need only be t(>0. The gap t created in this manner prevents the extension 3a from coming into contact with the mirror base 1, which prevents scratches from occurring due to rotation. is prevented.

Next, referring to FIG. 4, a structure for preventing scratches on the rear extension portion 1a will be explained. This portion is also formed with a protrusion having a step size t3, similar to the aforementioned extension portion 3a.

The abutting surface 1b facing the extension portion 3a and the aforementioned extension portion 3a was formed in the shape of a plane tangential to the arc of the locus, whereas the abutment surface 3b facing the extension portion 1a was formed in the shape of a tangent plane to the arc of the locus b'. Although the groove is formed on the concave cylindrical surface, the width (in the vertical direction in the figure) is made short, and when the mirror housing 3 rotates slightly in the direction of arrow A' around the hinge pin 9, the above-mentioned abutment occurs. The structure is such that the parts are spaced apart. Then, a stopper protrusion 18 is formed to restrict the hinge member 11 from rotating around the hinge pin 7 and approaching the mirror housing 3;
The stopper gap is set to an appropriate size such that t4<<t3.

FIG. 6 shows a state in which the mirror housing 3 is tilted in the direction of arrow A'. In this state, the stopper protrusion 18 of the hinge member 11 comes into contact with the mirror housing 3, and the stopper gap dimension tf becomes zero. A gap of dimension tf is left between the extension portion 1a of the mirror base 1 and the contact surfaces 3b and H of the mirror housing 3. These functions are similar to those in the extension 3a described with reference to FIG.

FIG. 7 is an exploded perspective view of an embodiment of the above-mentioned buffer type door mirror. The extension portion 1a formed on the mirror base 1 is shown by breaking a portion of the mirror base. Similarly, extension part 3a
is a partially cutaway depiction of the mirror housing 3. .

FIG. 8 shows a state in which the mirror base 1 and the mirror housing 3 are hinged together via the hinge member 11, and the tension spring 6 and lever 16 are disengaged. From this state, the hinge member 11 moves around the hinge pin 9 with an arrow J.
It can be rotated in the direction of.

Further, the mirror housing 3 can rotate around the hinge pin 7 (indicated by the center line) in the direction of the arrow.

FIG. 9 shows the hinge member 11 rotated in the direction of arrow J from the state shown in FIG. 8. The bottom view of the horizontal section in this state corresponds to the above-mentioned FIG. 5.

FIG. 10 is a perspective view of the mirror housing 3 rotated in the direction of the arrow from the state shown in FIG. 8, viewed from the back side of the paper toward the front of the paper.

The bottom view of the horizontal section in this state corresponds to the above-mentioned FIG. 6.

As detailed above, in the shock-absorbing door mirror of the present invention, both the front and rear ends of the hinge member are covered with extensions formed on the mirror base and extensions formed on the mirror housing, so that the hinge member does not appear on the outside. It looks good because of the hood, and since the air flow in this area is blocked by the extension, there is no risk of making wind noise when driving.

In addition, even if the mirror housing is tilted forward or backward, a gap will be created where the mirror base and mirror housing were in contact, so there is no risk of scratches occurring at this location, and it is durable. Excellent in sex.

[Brief explanation of the drawing]

1 to 3 show horizontal sectional views of the shock-absorbing door mirror, with FIG. 1 depicting the normal state, FIG. 2 depicting the rear tilting state, and FIG. 3 depicting the forward tilting state. 4 to 10 show an embodiment of the shock-absorbing door mirror of the present invention, FIG. 4 is an enlarged horizontal sectional view of the vicinity of the hinge member in the normal state, FIG. 5 is the same state when tilted forward, Figure 6 is also the state when tilted backwards, Figure 7 is an exploded perspective view,
Figure 8 is a perspective view with the tension spring disengaged, Figure 9 is a perspective view when tilting forward, and Figure 10 is a perspective view when tilting backward. Part, lb... Same contact surface, 3... Mirror housing, 3a... Same extension part, 3b... Same contact surface, 4
...Mirror, 6...Tension spring, 7,9
...Hinge pin, 11...Hinge member, 12゜14
...Bracket, 16...Lever, 18...Stopper protrusion. Patent Applicant Ichikoh Industries Co., Ltd. Agent Patent Attorney Tadashi Akimoto Figure 1, Section 4, Part I, Figure 5, Figure 2, Section 8R1 146

Claims (1)

[Claims] A mirror housing is brought into contact with the mirror base via a hinge member, and the front and rear ends of the hinge member are respectively hinged to either the mirror base or the mirror housing, and the mirror housing is In a buffer-type door mirror that is biased toward the mirror base by a tension spring, the edges of the hinge mating members at the front and rear ends of the hinge member are extended, and the front and rear edges of the hinge member are extended. covering the edges so that the mirror base and mirror housing abut each other via the extension portion, and when either the mirror base or the mirror housing is rotated in a direction away from the hinge member; , forming a step at the tip of the extension so as to create a gap between the extension and the mating member;
A buffer type % type % characterized in that the hinge member is provided with a stopper means for restricting rotation in the approach direction with respect to the other member of the mirror base and the mirror housing.