JPS611551A - Remote-control type tiltable door mirror - Google Patents

Abstract

PURPOSE:To absorb external force without fail, by making a mirror housing tilt down even in either direction, in front and the rear, at a time when there is added the external force of more than the specified value. CONSTITUTION:A mirror holder 13 is operated for its rocking motion in the same direction as the operating direction of an operating knob 20, and a tilt angle in all directions of a mirror 15 is adjusted as specified. A mirror housing 1 comes off a hinge link 4 against resilient force of a coil spring 6 when large external force is added from the rear, whereby it turns round frontward centering on a hinge shaft 3 at a front end edge part. When large external force is added from the fron, the mirror housing 1 turns round rearward centering on a hinge shaft 5 together with the hinge link 4.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is directed to a door mirror, that is, an instrument mounted on a vehicle door.
” Concerning the outside mirror that can be kicked, in particular,
This invention relates to a remote control type door mirror in which the inclination angle of the mirror can be adjusted from the center white side using an operating lever.

(Prior art) Door mirrors are increasingly being used in passenger cars, etc., but in such door mirrors,
Since the field of view may vary greatly depending on the driver's physique, driving posture, etc., it is desirable to be able to adjust the tilt angle of the mirror while sitting in the driver's seat. Therefore, the mirror was swingably supported within the mirror housing, and the inclination angle of the mirror could be adjusted via a link mechanism by operating a control lever provided so as to protrude eastward. , remote-controlled door mirrors are widely used.

By the way, in such a door mirror, when a large external force is applied to the mirror housing in the longitudinal direction,
In order to absorb the external force and prevent damage, the mirror housing is usually supported so that it can be tilted back and forth. On the other hand, during normal driving, it is necessary to ensure that the mirror housing does not move and cause the mirror inclination angle to change. To this end, in conventional door mirrors, a coil spring is installed between the base fixed to the door and the mirror housing.Usually, the elasticity of the spring holds the mirror housing crimped to the base, and the external force When the mirror housing is hit, the mirror housing is tilted back and forth against the elasticity of the spring (for example, see Japanese Patent Laid-Open No. 57-6O84+).

(Problem to be solved by the invention) However, the remote control door mirror has one problem.
- When providing a coil spring as described above, it is necessary to provide both the spring and a link mechanism for adjusting the inclination angle of the mirror between the base and the mirror housing. Since it is necessary to prevent the spring from interfering with the link mechanism, mirror, etc. even when the device is tilted, there is a problem in that it becomes difficult to select the location of the spring and link mechanism.

Moreover, such a door mirror is generally attached so that its tip protrudes outward from the side surface of the vehicle body. Therefore, a car equipped with door mirrors has a larger overall vehicle width than a car equipped with a general fender mirror. Therefore, especially when the vehicle is parked in a parking tower or the like, the door mirrors may come into contact with other vehicles or structures. For this reason, there is a demand for a door mirror that can be folded along the door and held in that position.

However, in a case where the mirror housing is held in a normal use position by the elasticity of a coil spring, such as a double-unit mirror, it is necessary to use a strong spring. Therefore, it is difficult to tilt the mirror housing at a large angle in either direction, and it is even more difficult to maintain the mirror housing in a state where it is tilted at a large angle.

The present invention was made in view of these problems, and its main purpose is to ensure that the mirror housing is normally held in its position of use, while also ensuring that the mirror housing is held securely when an external force is applied. The purpose is to allow the mirror housing to tilt in the front and rear directions, but also to allow the mirror housing to be tilted and held in a folded state when parking or the like.

Another object of the present invention is to obtain a remote-controlled folding door mirror that is easy to assemble and has a large degree of freedom in design.

(Means for Solving the Problem) In order to achieve this object, in the present invention, the − side end is pivotally supported by the front edge of the mirror housing, and the other side is supported between the mirror housing and the base. The end portions are connected by a hinge link that is pivotally supported on the rear end edge of the base, and the hinge link and the mirror housing are fixed by an elastic holding mechanism or the like that elastically holds the hinge link and the base. The device is locked by a removable locking mechanism. When a large external force is applied to the mirror housing, depending on the direction of the external force, either the fixation between the hinge ring and the mirror housing or the fixation between the hinge link and the base comes off, causing the mirror housing to move forward and backward. Tilt in direction is allowed.

When folding the mirror housing, it is desirable that the mirror faces the door side, ie, is tilted rearward. In that case, since it is not necessary to tilt forward at such a large angle, the holding mechanism between the hinge link and the mirror housing may be a coil spring tensioned between the hinge link and the mirror housing.

The present invention will be explained in more detail below based on one drawing.

In the figure, figure Ii is a remote control type r according to the present invention.
FIG. 2 is a cross-sectional view showing a specific example of an IF-folding door mirror, and FIG. 2 is a cross-sectional view showing a link mechanism portion thereof. Further, FIG. 3 is a side view of the main parts thereof, and FIG. 4 is a perspective view showing the door mirror in a folded state.

As is clear from FIG. 1, the mirror housing l is fixed to the corner of the door window (not shown) of the automobile, that is, the base of the front pillar, and is supported by the base 2. ing. At the end edge of the mirror housing 1 on the front side of the vehicle body (upper side in FIG. 1),
A vertical hinge shaft 3 is provided, and one end of a hinge link 4 is rotatably connected to this hinge shaft 3. Also, the rear side of the vehicle body of base 2 (downward in Figure 1)
A downward hinge shaft 5 is provided at the end edge of the hinge shaft 5, and the other end of the hinge link 4 is rotatably connected to the hinge shaft 5. Therefore, the mirror housing 1 and the base 2 are connected via the hinge link 4.

As is particularly clear from FIG. 4, the hinge link 4 has a quadrilateral frame shape, and one end of a coil spring 6 (7) is secured to the middle part of the negative side. The other end of the coil spring 6 is locked to a bracket 7 fixed to the mirror housing l, as shown in FIG. In this way, the mirror housing l and the hinge link 4 are always kept in a pressed state, that is, in a fixed state, by the elasticity of the coil spring 6. Therefore, in this example, the coil spring 6 is
A holding mechanism R is configured to fixedly hold the mirror housing 1 and the hinge link 4.

Further, the hinge link 4 is provided with a 1F portion 8 having an arcuate guide hole 8a centered on the hinge shaft 5 on the pace 2 side. A small shaft 9 supported by the base 2 is inserted into this elongated guide hole 8a, and as shown in FIG. - The engaging member 11 is pressed toward the surface,
Supported in a slidable manner. And this section 11 part 8
A first locking groove 8b into which the engaging member 11 is fitted when the hinge link 4 is in a substantially perpendicular state to the base 2, and a first locking groove 8b in which the hinge link 4 is rotated until it is substantially perpendicular to the base 2. A second locking groove 80 into which the engaging member 11 fits when the locking member 11 is engaged is provided. In this way, hinge link 4 and base 2
A click hinge mechanism is formed between the two to elastically lock them in two positions, such as when they are substantially parallel and when they are substantially perpendicular.

In this example, the engaging member 11 and the locking groove 8b.

8C and the like constitutes a locking mechanism S that fixes the hinge ring 4 and the base 2. As is clear from FIG. 2, the click hinge mechanism is fixedly provided inside the mirror housing 1. A spherical support member 12 is integrally provided at the center of the bracket 7, and this spherical support member 12 is fitted into a spherical seat 14 on the back side of a mirror holder 13 housed inside the housing 1. has been,
The mirror holder 13 is supported with respect to the housing 1 so as to be swingable from side to side below -L.

A mirror 15 is fixedly attached to the front surface of the mirror holder 13, and by swinging the mirror holder 13, the mirror 15 also swings 12, and its inclination angle can be changed.

A fitting portion 17 into which a flat plate-shaped slider 16 is slidably fitted is provided on the back surface of the mirror holder 13 . On the other hand, the base 2 has an operating lever 18 with one end protruding eastward, or a spherical bearing 1 provided in the middle of the operating lever 18.
9, it is swingably supported. This operation /<
An operation knob 20 (Fig. 1) is attached to the inner end of -1 (3), and one end of a link piece 21 is swingably connected to the opposite end. The - end of Rinfre/<-27 is swingably connected to the other end of the workpiece.

The middle part of this link lever 22 is connected to the mirror housing 1.
It is swingably supported by a link bracket 24 which is rotatably supported by a bin 23. and,
The other end of the link lever 22 is swingably connected to one end of the slider 16. In this way, the ring piece 21, the link lever 22, and the link bracket 24 control the operation of the operating lever 18 from the mirror 15.
(For FT) Next, we will explain the operation of the remote control folding door mirror configured in this way.

In normal use, as shown in FIG. It is locked in a substantially parallel state to the base 2 by a retaining member 11 fitted in the first groove 8b. Therefore, the mirror housing 1 is
It is securely held upright on a base 2 fixed to the vehicle body.

In this state, when the lever 20 of the operating lever 18 protruding into the vehicle is operated, for example, the operating lever 18 is swung clockwise in FIG. Swings counterclockwise. As a result, the connecting portion between the link lever 22 and the slider 16 moves north in the figure, and the mirror holder 13 swings clockwise about the spherical support member 12. Conversely, when the operating lever 18 is swung counterclockwise, the mirror holder 13 is also swung counterclockwise.

Furthermore, when the knob 20 of the operating lever 18 is rotated around its axis, the link bracket 24, which is pivotally supported by the pin 23 on the mirror housing l, rotates together with the link piece 21 and the link lever 22, and the mirror holder 13 rotates about the spherical support member 12 in a direction perpendicular to FIG.

In this way, the mirror holder 13 is swung in the same direction as the operating direction of the operating knob 20, and the vertical and horizontal inclination angles of the mirror 15 fixed to the mirror holder 13 are adjusted.

In the state shown in Fig. ff11, when a large external force is applied to the mirror housing l from the rear, that is, from below in the figure, the mirror housing l separates from the hinge link 4 against the elasticity of the coil spring 6, and the front end edge It rotates forward about the hinge shaft 3 of the section. During this time, the hinge link 4 is held parallel to the base 2 by the engaging member 11 that fits into the first locking groove 8b of the locking portion fE 8. When the external force is removed, the mirror housing 1
is rotated around the hinge shaft 3 by the elasticity of the spring 6 and returns to the state shown in FIG.

Furthermore, when a large external force is applied to the mirror housing 1 from the front, that is, from above in FIG. The locking portion 8 attempts to rotate around the hinge shaft 5. Thereby, the retaining member 11
is pushed up against the spring 10 and the first locking groove 8
deviate from b. In this way, when receiving an external force of a predetermined magnitude or more from the front, the mirror housing l rotates rearward about the hinge shaft 5 together with the hinge link 4, thereby absorbing the external force. After the external force is removed, the mirror housing 1 is tilted.
When pushed forward, the engaging member 11 engages the first engaging member 1 again with the groove 8b.
and return to the state shown in Figure 1.

When the door mirror gets in the way when parking, etc., push the tip of the mirror housing l toward the rear. Then, the mirror housing l rotates in the same way as when it receives an external force from the front.

In this case, since the elasticity of the coil spring 6 is not involved, the mirror housing l can be easily tilted to a large angle by simply applying a strong force at the beginning. When the mirror housing l rotates approximately 90'' and the mirror 15 reaches a position along the door surface, the engaging member 11 engages the locking portion 8.
11x IM 8 c, and locks the hinge link 4 at that position. Thereby, the mirror housing 1 is held in the folded state.

By doing this, the coil spring 6 becomes
It is only necessary to extend the mirror housing 1 when it is tilted forward, and the mirror housing 1 can be installed along the front wall surface of the mirror housing 1. Therefore, interference with the link mechanism for adjusting the tilting angle of the mirror 15, the mirror holder 13, etc. can be easily prevented. Moreover, the coil spring 6 is
Since it only needs to be locked to the hinge link 4, a sufficiently large space can be secured on the base 2 side for interlocking of the link pieces 21 and the like. Furthermore, after the coil spring 6 is stretched between the mirror housing l and the hinge link 4, the hinge link 4 and the base 2 can be connected to each other, making the assembly process easier. can do.

(Example) Holding mechanism R and locking mechanism S that elastically fix and hold the hinge link 4 to the mirror housing 1 and the base 2, respectively.
In addition to the coil spring 6 and click hinge mechanism as shown in FIGS. 1 to 4, various other mechanisms can be considered.

Figures 5 to 9 show a few examples.

In these figures, parts similar to those shown in FIGS. 1 to 4 are given the same reference numerals.

In the example shown in FIG. 5, a coil spring 6 similar to the example shown in FIGS. 1 to 4 is used as the holding mechanism R between the mirror housing l and the hinge link 4. just,
In this case, one end of the coil spring 6 is locked to a hook-shaped locking portion provided on the hinge link 4, and the other end is locked directly to the mirror housing 1.

The hinge link 4 is provided with a locking portion 81 having an arcuate outer circumferential surface 81a centered on the hinge shaft 5, and locking portions 81 are formed at intervals of approximately 90° on the outer circumferential surface 81a. Locking groove sl b.

81c, an engaging member 11. whose intermediate portion is pivotally supported by the base 2. The protrusion 111a at the tip of the holder is fitted into the protrusion 111a. Engagement member 11. The other end is a spring 10. which is fixed to the base 2. is pulled clockwise in the figure by the engaging member 11. The projection 111a at the tip of the locking portion 81 is elastically pressed toward the outer circumferential surface 81a of the locking portion 81. Therefore, at the position where the protrusion 111a is fitted into the locking groove 81b or 81c,
The hinge link 4 is elastically retained.

In the one shown in FIG. 6, the hinge link 4 is provided with a locking portion 82 having a cam surface 82a formed around the hinge shaft 5 on the outer peripheral surface. A compression spring lO2 is supported on the base 2, and this compression spring lO2
As a result, the engaging member 11 is pressed toward the cup surface 82a. The cam surface 82a is a surface in which the radius from the hinge shaft 5 to the tip of the engagement member 117 becomes small when the mirror housing 1 is in the use position and in the folded position, and the radius remains constant therebetween. It is said that Therefore, when the hinge ring 4 is rotated from a predetermined locking position, the retaining member 112 must be pressed against the compression spring 102, so that the hinge link 4 is elastically locked and held at that position. Therefore, the same effect as that shown in FIGS. 1 to 4 can be obtained. If such a cam mechanism is used, by appropriately setting the shape of the cam surface 82a, it is possible to vary the force required when tilting the mirror housing l backward and when returning it from there. .

In the above example, mirror housing l is moved backwards to II.
It is assumed that the hinge link 4 is locked to the base 2 even when it is in the folded state, but when no external force is applied, the mechanism S is not necessarily locked in the lock 1 even in that position. It doesn't have to be possible. Therefore, the locking mechanism S that locks and holds the hinge link 4 and the base 2 may be a simple lip mechanism.

FIG. 7 shows such an example. As is clear from this figure, the hinge link 4 has a spherical locking portion 83 that protrudes toward the base 2 at a position closer to the hinge axis 3.
is provided. - On the other hand, the base 2 is provided with an engagement recess 113 into which a portion 83 of the engagement member 11 is fitted, at a position opposite to the engagement member 83 when the mirror housing 1 is in the use position. The four retaining portions 113 are made of an elastic material. Therefore, when a rearward force of more than a predetermined magnitude is applied to the mirror housing l, the engagement recess 113 is deformed to the extent that the locking part 8 of the hinge link 4
3 is removed, and the mirror housing 1 rotates backward together with the hinge link 4. The mirror housing l is held in its tilted position unless a forward force is applied. In order to maintain the tilted state more reliably, the frictional force between the hinge link 4 and the hinge shaft 5 may be increased. When returning to the use state, the mirror housing l is rotated forward and the locking part 83 of the hinge link 4 is pressed against the engagement recess 113 of the base 2. Then, when a larger forward force is applied to the mirror housing l, the engagement recess 113 is deformed and the engagement IL part 8
3 will fit. In this way, normally, the locking portion 83, and therefore the hinge ring 4, are reliably locked and held by the elasticity of the engagement recess ti3.

In addition, in the following example -F-, a coil spring 6 is used as the holding mechanism R that fixedly holds the mirror housing 1 and the hinge ring 4, but this holding mechanism R also includes the hinge link 4 and the holding mechanism R. The same locking mechanism S as the locking mechanism S that locks and holds the base 2 can be used.

For example, as shown in FIG. 8, a clip mechanism similar to the clip mechanism shown in FIG. ff17 can be provided at a position near the hinge shaft 5. In this case, in hinge link 4,
A portion 84 is provided on the spherical locking member 1 projecting toward the mirror housing 1, and the locking portion 84 is elastically fitted into the mirror housing l into an engaging recess 11. are provided so that the mirror housing l and the hinge link 4 are elastically retained by the engagement between the locking portion 84 and the engagement recess 114.

Further, as shown in FIG. 9, click hinge mechanisms can be provided on both sides of the hinge shafts 3 and 5. In this example, the hinge ring 4 has an arc-shaped outer circumferential surface 85 a centered on the hinge shafts 3 and 5 .

86 a, a locking portion 85,8. Compression springs 105 and 10 are provided on the mirror housing 1 and base 2 sides.
．． are attached to the engaging members 115. lls are pressed toward the outer circumferential surfaces 85a, 8Ba of the locking portions 85.86. The outer circumferential surfaces 85a and 86a are provided with engaging 1F grooves 85, respectively, in the position when the mirror housing l is in use and in the position when it is folded back and forth.
b, 85C; 86b, 86c are provided, and these locking grooves 85b, 85c; 86b are provided at the tips of the engaging members 115, 1.16.

86c are rotatably attached to poles 1.15a and 1lsa that can be fitted into the poles 1.15a and 1lsa.

In this way, the mirror housing 1 can be folded in either the front or back direction and retained in that state.

In addition, both the coil spring 6 and a clip mechanism, a click hinge mechanism, or the like may be provided as the holding mechanism R that fixes and holds the mirror housing 1 and the hinge link 4. In this case, the coil spring 6 only has to function to return the tilted mirror housing 1 to the use position, and there is no need to hold it in the use position, so the spring can be made weaker and its assembly is easier. It can be made easy.

(Effects of the Invention) As is clear from the explanation below, according to the present invention,
The front end edge of the mirror housing and the rear end edge of the base are connected by a hinge link.

The hinge link and the mirror housing are fixedly held by a retaining mechanism that allows them to separate when a large external force is applied, and the hinge link and the base are locked by a mechanism that releases when a large external force is applied. Since the IL is held in place by a mechanism, the mirror housing is normally held fixed to the base, and when a large external force exceeding a certain level is applied, the mirror housing will be held in either the front or rear direction. leans in and absorbs that external force. Therefore, unlike conventional models, there is no need to stretch a coil spring from the base to the mirror housing, and it becomes possible to secure enough space for the link mechanism for mirror operation. When tilting the housing backward, the base and hinge link are completely separated, so when tilting the mirror housing backward, S
It can be held in a folded position, eliminating the need for door mirrors to get in the way when parking. Furthermore, in the folded state, the mirror faces the vehicle body and is covered by the mirror housing, which prevents damage to the mirror during parking.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a specific example of a door mirror according to the present invention, FIG. 2 is a cross-sectional view showing a link mechanism thereof, and FIG. 3 is an enlarged side view showing a locking mechanism thereof. Figure 4 shows
A perspective view showing the folded state of the door mirror. FIGS. 5 to 9 are schematic cross-sectional views showing different embodiments of the door mirror according to the present invention. ■...Mirror housing 2...Base 3...
Hinge link 4... Hinge link 5... Hinge link 6... Coil spring 8... Part 1V lo... Spring 1
1... Engaging member 13... Mirror holder 15... Mirror 18.
...Operation lever 2I...Link piece 22...Link lever 24...Link bracket L...Link mechanism R...Holding mechanism S...Locking mechanism =''f'-Itobefu Rini I Hosho (self-produced) 1982
July 9th

Claims (3)

[Claims] (1) The mirror housing 1 includes a mirror housing 1 in which a mirror 15 is swingably supported, and a base 2 that is fixed to a door and supports the mirror housing 1, and the mirror 15 is operated by an operating lever 18 that projects into the vehicle interior. In the remote control type door mirror, which is made to swing relative to the mirror housing 1 via the link mechanism L; a hinge link 4 whose end is rotatably supported, and whose other end is rotatably supported at the rear edge of the base 2;
The hinge link 4 and the mirror housing 1 are normally held in a fixed state, and when an external force of a predetermined magnitude or more is applied to the mirror housing 1 from the rear, the mirror housing A holding mechanism R is provided that allows forward tilting with respect to the hinge link 4 of 1,
The hinge link 4 and the base 2 are locked by a locking mechanism S that is detachable when an external force of a predetermined magnitude or more is applied to the mirror housing 1 from the front. , remote-controlled folding door mirrors. (2) The holding mechanism R that holds the hinge link 4 and the mirror housing 1 in a fixed state is a coil spring 6 stretched between them. door mirror. (3) The locking mechanism S that locks the hinge link 4 and the base 2 is elastically locked in two positions: when the mirror housing 1 is in the use position and when it is in the folded position tilted backward. 2. The door mirror according to claim 1, wherein the door mirror is a click hinge mechanism for stopping the door mirror.