JPS6328689Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic door mirror.

Generally, door mirrors are attached to the outer wall of the driver's cab, so in the event of a collision with an external object, the housing that supports the mirror tilts to provide a buffering function that reduces damage. Conventionally, such door mirrors have a tension spring mounted on the housing and a base to be fixed to the vehicle body, and the tensile force of the spring presses the housing onto the base, and an impact force is applied to the housing. The housing is configured such that the housing can be tilted relative to the base when the housing is tilted relative to the base.

By the way, when transporting a car, it is necessary to keep the housing of conventional door mirrors folded down due to the space available on the width of the car body. As a result, there is a drawback that the spring becomes sagging, resulting in a defective product. Furthermore, since the tension spring pulls the housing and base together with a fairly strong force, the base is die-cast to withstand this pulling force, which has the drawback of increasing weight and cost.

In view of the above-mentioned circumstances, the present invention provides a door mirror that can prevent the spring from becoming a defective product, as well as reduce cost and weight.

Hereinafter, the present invention will be explained with reference to the accompanying drawings. 1 to 6 show an embodiment of a door mirror according to the present invention.

In the door mirror according to the present invention, a mirror 1 is attached to a mirror body 2, and the mirror body 2 is connected to a ball joint 3.
It is rotatably attached to the housing 4 via. The housing 4 is configured to be rotatable relative to a base 5 to be fixed to a vehicle body (not shown).

Specifically, one end of a tilting bracket 6 is pivotally connected to the base 5 by a pin 7, and the tilting bracket 6 is fixed to the base 5 by a screw 8. The base 5 is made of synthetic resin, and a pin insertion hole is provided in the upper mounting portion 5a, and the pin 7 is inserted into the pin insertion hole and the pin insertion hole 6b provided in the tilting bracket 6. , a tilting bracket 6 is pivotally mounted. Furthermore, a screw hole (not numbered) is provided at a predetermined position of the base 5, and a pin insertion hole 6c is provided at a position corresponding to the screw hole of the tilting bracket 6, and both are tightened with the screw 8. Tilting bracket 6 relative to base 5 in normal condition
is fixed so that it does not rotate. Therefore, when the screw 8 is removed, the tilting bracket 6 rotates about the pin 7 with respect to the base 5.

On the other hand, the tilting bracket 6 and the housing 4
A tension spring 9 is installed between the two. The tension spring 9 has one end hooked to a hook 10 hooked to the hook portion 6d of the tilting bracket 6, and the other end hooked to a spring attachment portion 4a provided inside the housing 4, so that the elastic force is applied. The housing 4 is biased against the bracket 6 by this. In this example, a reinforcement 11 is fixed inside the housing 4 in order to prevent the tension spring 9 from coming off from the housing 4 and to prevent the housing 4 from deforming due to the tensile force of the tension spring 9. .

In addition, the tilting bracket 6 has two
On the other hand, the fulcrum portions 6e and 6f are formed at the bracket mounting portion 4b of the housing 4.
Engagement fulcrum portions 4c and 4d are formed which can be rotatably engaged with e and 6f. As clearly shown in FIGS. 2 to 5, each of the fulcrum portions 6e and 6f protrudes from the front and rear portions of the tilting bracket 6, and each tip and external side surface form an arc. There is. As clearly shown in FIGS. 3 and 4, the engagement fulcrum portions 4c and 4d are formed at the front and rear portions of the bracket mounting portion 4b, and each tip forms an arc. Each fulcrum part 6e, 6f and each engagement fulcrum part 4c, 4d are engaged with each other in a normal state, and for example, when an impact force is applied in the direction A, one fulcrum part 6e and each engagement fulcrum part 4c is engaged, and the housing 4 is moved around the engagement fulcrum 4c.
rotates, and when an impact force is applied in the direction B, only the other fulcrum portion 6f and the engagement fulcrum portion 4d engage, allowing the housing 4 to rotate around the engagement fulcrum portion 4d. It's getting old.

A holding member 12 is provided so that the housing 4 can maintain an inclined posture with respect to the base 5. The holding member 12 has a second
As shown in the figure and FIG. While hooking the part 12a onto the notch 6g of the tilting bracket 6,
2b is hooked onto the notch 5b of the base 5 and interposed between the tilting bracket 6 and the base 5, the housing 4 can be maintained in a tilted position relative to the base 5. ing.

Since the door mirror according to the present invention has the above-described configuration, in order to tilt the housing 4 during transportation of a vehicle, first remove the screws 8 from the tilting bracket 6 and the base 5, and then remove the housing 4 from the tilting bracket. Engagement fulcrum portion 4c for bracket 6
When the tilting bracket 6 rotates about the pin 7 with respect to the base 5, the tension spring 9 does not extend because the tilting bracket 6 rotates about the pin 7 relative to the base 5 and operates integrally with the housing 4. Thereafter, the holding member 12 is inserted between the tilting bracket 6 and the base 5, whereby the housing 4 and the tilting bracket 6 can be kept in the tilted position relative to the base 5.

As a result, even if the housing 4 is knocked down during transportation, the tension spring 9 will not be extended, so the spring force of the tension spring 9 can be maintained, and defective products can be prevented. can be prevented. Also, since the tension spring 9 is not directly hooked to the base 5,
It is no longer necessary to have the strength as before,
Therefore, the base 5 can be made of resin instead of metal.

As described above, according to the present invention, the tension spring does not extend even if the housing is tilted relative to the base during transportation, etc., so it is possible to reliably prevent the tension spring from becoming a defective product. Moreover, the base can be molded from synthetic resin, which has the advantage of reducing weight and cost accordingly.

[Brief explanation of the drawing]

The accompanying drawings FIGS. 1 to 6 show an embodiment of the door mirror according to the present invention, in which FIG. 1 is an overall sectional view of the door mirror, and FIG. 2 is an exploded perspective view of the door mirror.
Figure 3 is an exploded sectional view of the main parts showing the relationship between the housing and the tilting bracket, Figure 4 is a broken sectional view showing the housing tilted in direction A with respect to the tilting bracket, and Figure 5 is the tilting bracket. FIG. 6 is a broken sectional view showing a state in which the housing is tilted in direction B with respect to the bracket, and FIG. 6 is an overall sectional view showing the state in which the housing is tilted. 1... Mirror, 2... Mirror body, 3... Ball joint, 4... Housing, 4b... Bracket mounting part, 4c, 4d... Engagement fulcrum part, 5... Base, 6... Tilting bracket , 6e, 6f... fulcrum portion, 7... pin, 8... screw, 9... tension spring, 12... holding member.

Claims (1)

[Scope of utility model registration request] In a door mirror in which a mirror body with a fixed mirror is attached to a housing via a ball joint, and the housing is rotatably arranged relative to a base to be fixed to the vehicle body, one end of a tilting bracket is attached to the base with a pin. At the same time, the tilting bracket is fixed to the base with a screw, and a tension spring is tensioned between the tilting bracket and the housing to form two fulcrums on the tilting bracket. At the same time, an engagement fulcrum part is formed in the bracket mounting part of the housing to be rotatably engaged with the two fulcrum parts, so that when the screws are removed from the tilting bracket and the base, the tilting part is fixed. A door mirror characterized in that a bracket and a housing are configured to be rotatable about a pin with respect to a base.