JPH0241084Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a door mirror that is attached to the front end corner of a window opening of a side door of an automobile.

[Prior Art] This type of door mirror has been widely used in the past, but from the standpoint of preventing danger, it is designed to tilt backwards, in other words, to fall along the side door when a certain amount of force is applied to it.

By the way, Japanese Utility Model Application Publication No. 58-113556 discloses that a tilting posture holder is inserted into the opening between the mirror body and the mounting base that is created when the door mirror body is tilted backward using the structure of the door mirror described above. A device has been disclosed that can be effectively used for loading and unloading cars in narrow garages, transporting cars, etc.

However, the mirror holding spring built into this type of folding door mirror has a fairly strong spring force, and it is quite difficult to insert the tilting posture holder mentioned above. When the door mirror is not fully inserted, or when the tilting posture holder is removed to return the door mirror to its normal position, the door mirror body returns with a strong force as soon as the user releases the hand, leading to the risk of fingers getting caught.

[Purpose of the invention] An object of the invention is to provide a door mirror for an automobile in which there is no danger of fingers getting caught and the door mirror can be tilted backwards and returned very easily.

[Structure of the invention] Therefore, the present invention is a door mirror that is attached to the front end corner of a window opening of a side door of an automobile, and includes a door mirror body and a door mirror body that can be tilted freely with respect to the side door. a base supported at the front end corner portion; a shaft portion that is pivotally supported by the base and forms a rotation axis when the door mirror body is tilted forward; an extension portion that extends from the upper and lower ends of the shaft portion toward the interior of the door mirror body; A locking mechanism is provided in the door mirror body and has a heart-shaped cam groove with which the engaging part of the rod member engages. The heart-shaped cam groove includes a holding portion that locks the engaging portion to hold the door mirror body in the rearward tilted position when the door mirror body is tilted to a predetermined rearward tilted position, and a holding portion that holds the door mirror body in the rearward tilted position. When the door mirror body is tilted in the tilting direction again, the holding of the engaging portion is released, and
a release part that allows the door mirror body to return to its normal position; and a biasing means that is suspended between the door mirror body and the base and always biases the door mirror body toward the normal position. The present invention provides an automobile door mirror characterized by the following features.

In other words, in the door mirror of the present invention, when the door mirror body is tilted backward to a predetermined angle, the door mirror body is automatically held at that tilted position, and when the door mirror body is returned to its normal position, the door mirror body is automatically held at the tilted position. By pressing the button once more, it will automatically return to its normal position.

[Effects of the invention] According to the invention, the tilting and returning operations of the door mirrors are extremely easy, and the operability is significantly improved. There is also no need to provide a tilting posture holding device as in the past, and there is no danger of finger jamming. can also be completely eliminated.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the door mirror 1 is attached to the front end corner of the window frame 3 of the side door 2, and when the door mirror body 4 is pushed backward by hand from the normal position shown in the figure, the window of the side door 2 The door mirror main body 4 is tilted rearward relative to the base 5 attached to the frame 3, and is held locked in the tilted position as shown by the two-dot chain line A in FIG.

As shown in FIG. 1, the door mirror body 4 is attached to the base 5 fixed to the window frame 3 of the side door 2
The entire housing 6 that constitutes the base 5
The housing 6 houses a mirror 7 for viewing the rear and a power unit 8 for remotely controlling the angle of inclination of the mirror 7. Power unit 8 is supported by reinforcement 9.

As shown in FIGS. 1 and 3, from the base 5 covered by the rubber boot 10, there are a pair of upper and lower bracket portions 11 extending outward from the vehicle body.
A rod member 13 is hingedly supported between the bracket parts 11 and 12. On the other hand, on the side of the door mirror body 4, there is a third
As clearly shown in the figure, a pair of heart-shaped cam members 14 and 15 forming a so-called heart-shaped cam groove are fixedly attached using screws 16 or the like above and below the opening 6a on the base mounting surface side of the housing 6. .

The heart-shaped cam groove 17 formed by the heart-shaped cam members 14 and 15 has a pair of grooves extending toward the inside of the door mirror body 4 from both upper and lower ends of the rod member 13 bearing between the bracket parts 11 and 12. Engagement portions 13c and 13d provided by bending the tips of the extension portions 13a and 13b fit into each other, respectively, and are movable within this heart-shaped cam groove 17.

Returning again to FIG. 1, the door mirror main body 4 supports the other end 18b of the link member 18, whose one end 18a is pivotally supported by the rod member 13, by a hinge shaft 19. When tilting backward, insert the base 5 from the base 5 side near the door mirror body side hinge shaft 19 of the link member 18.
The contact portion 5a protruding from the link member 18 is in contact with the link member 18 so that the link member 18 can be tilted rearward about the other end 18b. It is designed to be able to rotate forward around a rod member 13 as a shaft member. The distal end engaging portions 13c and 13d of the extension portions 13a and 13b of the rod member 13 engage with the cam grooves, forming a type of push mechanism. In FIG. 1, 20 is a coil spring that holds the door mirror body 4 in the normal position, and 21 is a wire spring that biases the rod member 13 in the direction of the hour hand in the figure.

Hereinafter, the rod member 13 as this stay member
and the heart-shaped cam members 14, 15,
This will be explained with reference to FIG.

As shown in FIG. 4A, when the door mirror body 4 is in the normal position, the tips of the extension parts 13b and 13a of the rod member 13 are located at the tip a of the heart-shaped cam groove 17, and in this state, the first As shown in the figure, the door mirror body 4 is held at the normal position B by a coil spring 20 for biasing and holding it. Now, as shown in Fig. 4 (b), when the door mirror body 4 is held by hand and pushed backward, the engaging portions 13d, 13c of the rod member 13 pass through the path A of the cam groove 17 to the right side in Fig. 4 (b). When the door mirror body 4 reaches the peak B and releases its hand at this point, as shown in FIG. On the way, rod member 13
is slightly rotated around the hour hand in the figure by the spring force of the wire spring 21 provided against the rod member 13,
The engaging portions 13d and 13c of the rod member 13 are the crests B.
It fits into the lock groove D provided between the other peak C and maintains this state thereafter. Then, when releasing the door mirror body 4 from being held in the tilted position A, as shown in FIG.
When the rod member 13 is pulled out from the lock groove D, the engaging parts 13d and 13c reach the peak C on the left side of the figure in accordance with the spring force acting on the rod member 13, and when the hand is released in this state, the engaging parts 13d and 13c are engaged. As the door mirror body 4 returns, the joining parts 13d and 13c pass through the path E and reach the normal position B, that is, the tip a of the heart-shaped cam groove 17. In addition, in FIGS. 1, 3, and 4, in front of the tip a for holding the door mirror body 4 in the normal position B, there is an engaging portion that changes from the state of D to the state of A in FIG. A one-way valve 22 is provided which prevents the state from changing from the state shown in FIG. 4A to the state shown in FIG. Therefore, when the door mirror main body is folded down from A to B in FIG. 4, the one-way valve 22 restricts the movement of the engaging portion and the path E so that it does not move in the opposite direction. It is now possible to move it along the

The above structure constitutes a kind of push mechanism by the so-called heart-shaped cam groove 17 and the engaging parts 13d and 13c that slide in this groove, and thereby the holding part and the releasing part referred to in the present invention. It is composed of According to this configuration, the locking and unlocking of the door mirror body 4 at the tilted position A can be performed extremely smoothly.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory view of the main part showing the first embodiment of the present invention, Fig. 2 is a perspective view of the main part showing the whole door mirror, Fig. 3 is a schematic exploded perspective view of the mounting base and the door mirror body, and Fig. 4 is a schematic exploded perspective view of the mounting base and the door mirror body. Figures A, B, C, and D are explanatory views for sequentially explaining the operation of the first embodiment of the present invention. 1...Door mirror, 2...Side door, 4...
Door mirror body, 5...base, 13...rod member, 13a, 13b...extension part, 13c, 13
d... Engaging portion, 14, 15... Heart-shaped cam member, 17... Heart-shaped cam groove, D... Lock groove (holding part), E... Route (returning part), 20... Coil spring.

Claims (1)

[Scope of Claim for Utility Model Registration] A door mirror that is attached to the front end corner of a window opening of a side door of an automobile, wherein the door mirror body and the front end corner part are arranged so that the door mirror body can be tilted freely with respect to the side door. a base that is supported by the base, a shaft portion that is pivotally supported by the base and forms a rotation axis when the door mirror body is tilted forward, an extension portion that extends from the upper and lower ends of the shaft portion toward the inside of the door mirror body, and a shaft portion provided at the tip of the extension portion. a locking mechanism provided in the door mirror body and having a heart-shaped cam groove with which the engaging portion of the rod member engages; The door mirror body includes a holding portion that locks the engaging portion to hold the door mirror body in the rearward tilted position when the door mirror body is tilted to a predetermined rearward tilted position, and a door mirror body that is held in the rearward tilted position. is provided with a release part that releases the holding of the engaging part and allows the door mirror body to return to its normal position when the door mirror body is tilted in the tilting direction again. 1. A door mirror for an automobile, characterized in that it is provided with a biasing means for always biasing a door mirror body toward a normal position.