JPS6230946B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a door mirror installed on a front door panel or triangular window corner of an automobile.

[Prior Art] Examples of conventional door mirrors include those shown in FIGS. 1 and 2. In the figure, reference numeral 1 denotes a mirror body, 2 a mirror, and 3 a mirror holder, to which the mirror 2 is fixed with double-sided adhesive tape. A support base 4 is fixed to the mirror body 1 with screws 5, and a pivot and socket joint 6 is provided between the support base 4 and the mirror holder 3. Ball joint 6
is constructed by fitting a sphere (pivot) 6a provided on the support base 4 into a sphere receptacle (socket) 6b provided on the back surface of the mirror holder 3. First, the following shock mechanism is disposed between the mirror body 1 to which the various necessary members are attached and the mounting base 7 to the vehicle body. That is, the mirror body 1 is attached to a mounting base 7 via a double hinge so as to be tiltable in the longitudinal direction of the vehicle body (vertical direction in FIG. 1). The double hinge is attached to the hinge plate 8a as shown in FIG.
One end 8d is the bracket 9a on the mirror body 1 side.
via a first hinge pin 8b, and the other end 8e is attached to the bracket 7 on the mounting base 7 side.
a via an eighth hinge pin 8c so as to be rotatable. The bracket 9a on the mirror body 1 side is formed at a portion of a body member 9 that is insert-molded into the mirror body 1. In addition, a tension spring 12 is provided in the mirror body 1 between one end of the support base 4 and a spring plate 11 attached to the mounting base 7.
is adjusted so that the mirror body 1 always has a tendency to return to the upright state.

Further, a joint plate 13 is slidably attached to the back surface of the mirror holder 3, and its end portion is rotatably connected to an arm 14. Arm 14
is supported by a socket 15 of the mounting base 7 at a pivot portion 14a, and a handle 16 for remote control operation of the mirror tilting is fixed to the end projecting into the vehicle interior. When the handle 16 is operated appropriately from inside the vehicle, the arm 14 and joint plate 1
3, the mirror holder 3 is rotated three-dimensionally using the ball joint 6 as a tilting fulcrum, and as a result, the mirror 2
The slope of is adjusted.

On the other hand, when some kind of impact is applied to the mirror body 1 from the front, this mirror body 1
falls backward using the mounting base 7 side pivot part (hinge pin 8C side) of the double hinge 8 as a pivot point, and when an impact is applied from the rear, the mirror body 1 side pivot part (hinge pin 8b side) rotates. It acts as a fulcrum and falls forward to cushion the impact.

[Problems to be Solved by the Invention] However, in such a conventional door mirror, the ball-and-socket joint 6 that tiltably supports the mirror 2 is connected to the ball socket 6b provided on the back surface of the mirror holder 3. Furthermore, since the spherical body 6a on the support base 4 side was fitted into the structure, there was a problem in that it was difficult to adjust the tilting torque of the mirror 2 once it had been assembled.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door mirror that is easy to adjust the tightening torque of the center pivot and to assemble.

[Means for Solving the Problems] In order to achieve the above object, the present invention eliminates the method of fixing a mirror support having a ball and socket joint to the inner surface of the mirror body, and instead fixes a pivot base to the inner surface of the mirror body. A locking claw is provided to engage a pivot plate with a protruding pivot for a ball and socket joint. That is, the door mirror of the present invention has a double-hinged structure between the mirror body 1 and the mounting base 7, in which one end is rotatably connected to the mirror body 1 and the other end is rotatably connected to the mounting base 7. Hinge plate 8
In the door mirror equipped with a tension spring that constantly gives the mirror body 1 a tendency to stand up with respect to the mounting base 7; The pivot plate 22 is engaged with the pivot plate 22, and a sphere (pivot) 23a protruding from the center of the pivot plate 22 is fitted into a sphere receiver (socket) 23b formed on the back surface of the mirror holder 3. This is characterized in that a tension spring 12 is stretched between one end of the plate 22 and the mounting base 7.

[Example] Hereinafter, the present invention will be explained based on the drawings. Third
Figures 1 to 10 are diagrams showing an embodiment of the present invention. In each of the figures from FIG. 3 onwards, the same or equivalent members or parts as in FIG. 1 are designated by the same reference numerals.

Fig. 3 is an exploded perspective view of the door mirror of the present invention;
The figure is a cross-sectional view, in which the mirror 2 is fixed to the mirror holder 3 by heat-forced fitting to ensure quality against the mirror 2 falling off. A double-sided adhesive tape 17 is provided to prevent scattering when the mirror 2 is broken. Such a mirror holder 3 is mounted inside the mirror body 1 with the following configuration. That is, first, the pivot base 21 is installed and fixed within the mirror body 1 by four screws (tapping screws) 5. A separate pivot plate 22 is arranged on the upper surface of the pivot base 21. A spherical body 23a constituting a ball and socket joint (pivot and socket joint) 23 projects from the center of the pivot plate 22. Additionally, the pivot plate 22 is provided with four tapered locking portions 22b on both upper and lower edges, and correspondingly, the pivot base 21 has opposing locking sides bent inward. The locking sides 21b... are provided. Then, as described later, after the locking portion 22b is engaged with the locking pawl 221b, the tension spring 12 is hooked onto the end portion 22c of the pivot plate 22, and the locking portion 22b is locked by its elastic force. The pivot plate 22 is fixed to the pivot base 21 by being tightly bitten into the claw 21b. Reference numerals 22a, . . . denote sliding contact guides, and correspondingly, sliding contact pieces 3a, each having an L-shaped cross section, are protruded from the rear surface of the mirror holder 3. The sliding contact piece 3a and the sliding contact guide 22a are provided to prevent mirror shake. Corresponding to the sphere 23a, a sphere receiver 23b is provided on the back surface of the mirror holder 3 to resiliently hold the sphere 23a. 23
C is a cut, which imparts elastic force to the ball receiver 23b. 23d is a ring-shaped cap,
After the ball 23a is fitted into the ball receiver 23b, the cap 23d is fitted onto the ball receiver 23b and fixed to the mirror holder 3 with screws 24 to form a ball joint 23. In the ball joint 23, by adjusting the tightening force of the screw 24, the holding force of the ball receiver 23b, in other words, the fitting torque of the ball is adjusted. Incidentally, when the mirror holder 3 is installed in the mirror body 1 in this manner, the sliding contact piece 3a comes into contact with the sliding guide 22a.

Further, the double hinge forming the shock mechanism together with the tension spring 12 and the like is constructed as follows. That is, one end of the pivot base 21 extends to a double hinge installation portion, and a hinge pin attachment portion 21a on the mirror body 1 side is formed at this extended end. One end of the hinge plate 8a is
As shown in FIGS. 8 and 9, it is rotatably attached to this hinge pin attachment portion 21a by a hinge pin 8b. In FIG. 3, reference numeral 10a is a base cover, and 10b is a ceiling cover.

Next, assembly and operation will be explained with reference to FIGS. 11 to 13A and 13B.

First, the cap 23d is hooked onto the sphere 23a protruding from the center of the pivot plate 22, and then the sphere 23a is fitted into the sphere receiver 23b.Then, the cap 23d is fitted onto the sphere receiver 23d, and the screw 24 is tightened to complete the ball joint. The mirror holder 3 is attached to the pivot plate 22 via 23. At this time, the tightening of the screw 24 is adjusted in advance so that the movement of the mirror 2 via the ball joint 23 is optimized.

After integrating the mirror 2, the mirror holder 3, and the pivot plate 22 and adjusting the handle operating force as appropriate, they are mounted in the mirror body 1 as follows. That is, as shown in FIG. 11, before assembly, the spring plate 11 is integrally formed with a so-called "flat tongue" 11b. After fixing the pivot base 21 to the mirror body 1 with 5 screws, insert the tension spring 12 with one end hooked to the spring plate 11 between the pivot base 21 and the mirror body 1, and attach the other end to the pivot plate 22. Hang it on the end. Next, each locking part 22
b... corresponds to each locking claw 21b.... At this time, as shown in the figure, the "all tongue" 11b of the spring plate 11 faces the back side of the mounting base 7, so use an appropriate tool to move this "all tongue" 11b to a position where the set pin 11a can be set. Pull out the spring plate 1 to the right in Figure 11 until
1 is hooked to a required location on the mounting base 7 as shown in FIG. 6 above. By this pulling out and latching operation, each locking portion 22b... bites tightly into each locking claw 21b due to the action of its tapered surface due to the elastic force of the tension spring 12, and the pivot plate 2
2 is firmly fixed to the pivot base 21. At the same time, a tension spring 12 having a relatively strong elastic force is easily tensioned between the mirror body 1 and the mounting base 7 with a required tension. After the set is completed, break off the "Sterebero" 11b. The mirror 2 and the mirror holder 3 are then installed inside the mirror body 1.

Next, after the door mirror is attached to a desired part of the vehicle body via the mounting base 7, when the handle 16 is operated from inside the vehicle, the arm 14 moves via the joint plate 13 to the mirror holder 3 as shown in FIG. The mirror holder 3 is driven using the ball joint 23 as a tilting fulcrum, and the mirror 3 is adjusted to have a desired tilt.
At this time, as mentioned above, since the rotational torque of the ball joint 23 is adjusted in advance to obtain smooth movement, the handle 16 can be easily operated, and delicate adjustments to the inclination of the mirror 2 can be easily made. .

On the other hand, when some kind of impact is applied to the mirror body 1 from the front, as shown in FIG. It resists the elasticity of the tension spring 12 and rotates rearward at an appropriate angle. In addition, when receiving an impact from the rear, the mirror body 1
The side pivot portion (hinge pin 8b side) is used as a rotation fulcrum to rotate forward at an appropriate angle against the elasticity of the tension spring 12. In this way, the impact is alleviated.

Next, FIG. 14 shows another embodiment of the present invention.

This embodiment is of a manual construction, and includes the joint plate 13, arm 14,
Also, the arrangement of remote control mechanism parts such as the handle 16 is omitted. The other configurations are almost the same as above.

The tilt adjustment operation of the mirror 2 is performed by directly moving a portion of the mirror 2 by hand.

[Effects of the Invention] As described in detail above, the present invention provides a double plate between the mirror body and the mounting base, one end of which is rotatably connected to the mirror body and the other end of which is rotatably connected to the mounting base. In a door mirror whose mirror body can be folded forward and backward by interposing a hinge plate, the pivot base fixed to the inner surface of the mirror body and the pivot plate having a sphere (pivot) for holding the mirror are separated. year,
Assembly is easy because locking claws are provided on the upper and lower edges of the pivot base to engage the pivot plate. Further, since a tension spring is applied between one end of the pivot plate and the mounting base, the pivot plate engaged with the locking pawl can be integrated with the pivot base. Furthermore, before assembly, the ball (pivot) protruding from the center of the pivot plate is fitted into the ball socket formed on the back of the mirror holder, and the tightening force can be adjusted to ensure accurate tightening torque. The effect of being adjustable can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing a conventional door mirror, Fig. 2 is an exploded perspective view showing the structure of the double hinge part of the same door mirror, and Figs. 3 to 13 A and B show an embodiment of the present invention. Figure 3 is an exploded perspective view, Figure 4 is a vertical sectional view, and Figure 5 is a V-V of Figure 4.
6 is a plan view showing the attachment part of the spring plate in FIG. 4, FIG. 7 is a front view, FIG. 8 is a vertical sectional view showing the double hinge part, and FIG. Fig. 7 is a view in the direction of arrow A, Fig. 10 is a side view seen from the mounting base side, Fig. 11 is an exploded longitudinal sectional view to explain the assembly order, and Fig. 12 is an operation showing the state in which the handle is operated. FIGS. 13A and 13B are explanatory diagrams showing the operation when an impact is applied, and FIG. 14 is a longitudinal sectional view of main parts showing another embodiment of the present invention. 1...Mirror body, 2...Mirror, 3...Mirror holder, 7...Mounting base, 8a...Hinge plate,
8b, 8c... Hinge pin, 12... Tension spring, 13... Joint plate, 14... Arm,
16...Handle, 21...Pivot base, 22...
Pivot plate, 23...ball joint, 23a...ball (pivot), 23b...ball socket (socket), 2
3d...cap, 21b...locking claw.

Claims (1)

[Claims] 1. A double-hinged hinge plate 8a is interposed between the mirror body 1 and the mounting base 7, with one end rotatably connected to the mirror body 1 and the other end rotatably connected to the mounting base 7. At the same time,
In a door mirror equipped with a tension spring that always gives the mirror body 1 a tendency to stand up with respect to the mounting base 7; a pivot base 21 fixed to the inner surface of the mirror body 1 is provided with locking claws 21b on the upper and lower edges to lock the pivot plate 22. a sphere (pivot) projected at the center of the pivot plate 22;
23a is fitted into a spherical socket 23b formed on the back surface of the mirror holder 3, and a tension spring 12 is provided between one end of the pivot plate 22 and the mounting base 7.