JPS60161230A - Holding device for inclining orientation of door mirror - Google Patents

Abstract

PURPOSE:To simplify the structure of an inclining orientation holding device for a door mirror, by a method wherein the free end of a link, rotatably supported to a mirror housing, and the free end of a link, rotatably supported to a mirror base, are pivotally secured. CONSTITUTION:When a device is in an ordinary orientation, a lever 7 and a link 8 are positioned to form a curved line centering around a coupling pin 9 serving as a rotary shaft. When a mirror housing 3 is rotated centering around a rear shaft 5a counterclockwise as shown in a drawing, the lever 7 and the link 8 are aligned about on a rectilinear line. A stopper projection 2b, which locks the rotation of the mirror housing when, with the mirror housing further rotated, the two members are positioned to form an obtuse angle, is situated to a bearing bracket 2a. A tortion coil spring 10 is positioned in a direction in which the rotation is locked with the lever 7 forced into contact with the stopper projection 2b and is engaged outwardly with a shaft 7a, and the opposite ends thereof are respectively engaged with the bearing bracket 2a and the lever 7.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a door mirror in which a mirror housing is tiltably supported with respect to a mirror base, and the mirror housing is held in a tilted position or restored to a normal position. The present invention relates to a device for controlling the motion of the user.

[Background of the invention]

As shown in FIG. 1, a door mirror 1 is installed so as to protrude from the side of the vehicle body. Unfortunately, the door mirror 1 has a chance of colliding with an obstacle while driving, and may also prevent the vehicle from passing through narrowly spaced obstacles, such as when parking the vehicle.

If a vehicle collides with an obstacle while driving, a buffer type door mirror as shown in FIG. 2 is used to reduce the impact.

2 is the mirror base fixed to the car body, 3 is the mirror 4 removed 9
This is the attached mirror housing. The mirror housing 3 is supported by the mirror base 2 via a hinge-like bracket 5 so as to be rotatable nine times. That is, the bracket 5 is rotatably supported on the mirror base 2 by the rear shaft 5b, and the mirror housing 3 is rotatably supported by the front shaft 5b. A tension spring 6 is interposed between the mirror base 2 and the mirror housing 3 to attract both members to each other.

Due to this attractive force, the mirror housing 3 is brought into contact with the mirror base 2 and maintains a normal posture as shown in the figure.

As shown in FIG. 3, when an external force is applied to the mirror housing 3 in the direction of the arrow, the mirror housing 3 rotates together with the bracket 5 about the rear shaft 5a to alleviate the impact, and the external force A When the tension spring 60 disappears,
The action restores the normal posture (Figure 2). Figure 4 shows arrow B
It shows a state in which it is tilted around the front shaft 5b due to an external force in the direction.

--Page 5- As described above, when the shock-absorbing door mirror collides with an obstacle, the impact can be alleviated by tilting the mirror housing.

As explained with reference to FIG. 1, if it is difficult to pass between obstacles because the door mirror 1 protrudes to the side, passing can be made easier if the mirror housing 3 can be held in a tilted position using the above-mentioned shock absorbing device. However, in the past, there was no simple and easy-to-use device for holding the mirror housing in a tilted position.

In the prior art, as a countermeasure to a technical problem different from the above, in other words, when transporting a car by ship, the door mirror is held in a tilted position to reduce the occupied space.
There are examples of proposed jigs for maintaining the tilted posture of door mirrors. This jig is like J shown by the imaginary line in Fig. 3.
It is of a structure that is attached between the mirror base 2 and the mirror housing 3 to lock the mirror housing 3 from restoring rotation. It would be unbearable for the driver to prepare such a jig J in advance and then add the jig to the door mirror and remove it each time the vehicle is parked in the garage. It lacks practicality as an aid for daily driving.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a system in which a door mirror with a buffering function can be easily maintained in a tilted position with a simple operation, and a system in which it can be easily restored to a normal position. To provide a tilting posture holding device having a simple configuration.

[Summary of the Invention] In order to achieve the above object, a holding device of the present invention rotatably supports a mirror housing to which a mirror is attached to a mirror base fixed to a vehicle body, and also supports the mirror housing and the mirror housing. In a shock-absorbing door mirror in which a tension spring is interposed between the mirror housing and the mirror housing in a normal position, the free end of the link rotatably supported on the mirror housing and the The free ends of the links that are rotatably supported are rotatably attached to each other, and the angle at which the pair of links rotate relative to each other in a specific direction from a straight line is limited. In addition to providing a locking means to
It is characterized in that a spring means is provided to apply rotational force in a specific direction to the pair of links.

[Embodiments of the invention]

Next, one embodiment of the present invention will be described with reference to FIGS. 5 to 11. FIG. 5 is a perspective view in a tilted posture, and FIG. 6 is a horizontal sectional view in a normal posture.

This embodiment is an improvement by applying the present invention to the shock-absorbing door mirror shown in FIG. 2, and FIG. 7 is an exploded perspective view of the components added to apply the present invention.

Mirror base 2. Mirror housing 3. Bracket 5.
The front shaft 5a and the tension spring 6 are the same or similar structural members to those in a conventional shock-absorbing door mirror.

A lever 7 is constructed, and its intermediate portion (that is, the portions other than both ends) is rotatably supported on the similar base 2 by a shaft 7a. 2a is a bearing bracket fixed to the mirror base 2 for pivotally supporting the lever 7. For ease of reading, FIG. 7 depicts one bearing bracket (2a) divided into two parts, each labeled with a drawing reference number.

On the other hand, one end of the link 8 is rotatably attached to the mirror housing 3 by a front shaft 5b'. This front axis 5
b' connects the bracket 5 to the mirror housing 3 as described above.
This is the shaft member hinged to the front shaft 5b of this embodiment.
' is a link 8 extending upwards from the front shaft 5 of the conventional device.
It is constructed so that it also serves as a mounting member. 3c is a bearing bracket fixed to the mirror housing 3 to support the front shaft 5b'.

One end of the lever 7 and the free end of the link 8 are rotatably connected by a connecting pin 9.

Then, a slot-shaped opening 2c is provided in the mirror base 2, and the lever 7 is passed through the mirror base 2 so that the other end of the bar 7 projects into the driver's cabin. Although not shown, the interior wall to which the mirror base 2 is fixed is also provided with an opening corresponding to the opening 2c described above.

In the normal position (Fig. 6), the lever 7 and the link 8 are bent with the connecting pin 9 as the rotation axis, but the mirror housing 3 is rotated around the rear shaft 5a to the left as shown in the figure. When the lever 7 and the link 8 are rotated all at once in the direction shown in FIG. 8, the lever 7 and the link 8 rotate relative to each other and become approximately linear. A stopper protrusion 2b is fixed to the bearing bracket 2a so that the lever 7 and the link 8 are further rotated so as to stop the rotation when both members form an obtuse angle as shown in FIG.

As shown in FIG. 9, a torsion coil spring is configured to bias the lever 7 in the direction in which the lever 7 comes into contact with the stopper protrusion 2b and is prevented from rotating (that is, the lever 7 is clockwise). 7
a, and its both ends are engaged with the bearing bracket 2a and the lever 7, respectively.

7b is a handle for manual operation attached to the end of the lever 70 on the inside side of the vehicle.

The door mirror equipped with the tilting posture holding device described above is
As shown in FIG. 8, when the mirror housing 3 is held by hand and tilted in the direction of the arrow, the lever 7 and the link 8 are aligned in a straight line. This condition 10.

When you release your hand from the mirror housing 3 in this state, the lever 7 is rotated clockwise by the torsion coil spring holder, and the mirror housing 3 is rotated by the tension spring 6.
Due to the action of , it is rotated back in the direction opposite to the arrow.

When the lever 7 is rotated clockwise as described above, the link 8 is accordingly rotated counterclockwise, and the stopper protrusion 2b comes into contact with the lever 7 as shown in FIG. The relative rotation between the link 8 and the link 8 is locked. For this reason,
The restoring rotation of the mirror housing 3 is prevented, and the mirror housing 3 is held in a tilted position. FIG. 9 is a schematic perspective view showing this state.

As explained above, the holding device of this embodiment rotatably supports the mirror housing to which the mirror is attached to the mirror base fixed to the vehicle body, and also connects the mirror housing and the mirror base. A free end of a link whose base body is a buffer-type door mirror supporting the mirror housing in a normal position with a tension spring interposed therebetween, and which is rotatably supported on the mirror housing at an angle of 11-0; The free end of the link that is rotatably supported on the mirror base is rotatably attached to the mirror base, and the angle at which the pair of links mutually rotate in a specific direction from a straight line state. In addition to providing a locking means to limit the movement of the mirror housing 3, a spring means is provided to bias the pair of links with rotational force in a specific direction. Even when released, the mirror housing 3 maintains its tilted position. Therefore, it becomes easier to pass between narrow obstacles, such as when entering a garage.

In addition, when implementing the present invention based on this embodiment, if the lever ratio of the lever 7 and the strength of the fulcrum shaft 7a are appropriately set, the state shown in FIG. 6 (normal posture) can be achieved. ), it is also possible to apply a force in the clockwise direction as shown in the drawing to the handle 7b of the lever 7, and rotate the mirror housing 3 in the counterclockwise direction as shown in the drawing by operating from inside the vehicle, so that it can take the tilted position shown in FIG. .

After maintaining the tilted posture (FIG. 9) as described above, in order to restore the normal posture, manual operating force is applied to the nondle 7b as shown by the arrow in FIG. 9. As a result, the lever 7 rotates counterclockwise and the link 8 rotates clockwise, and the state shown in FIG. 8 is changed to that shown in FIG. 11. In this state, the mirror housing 3 will rotate clockwise as shown in the figure due to the biasing force of the tension spring 6 without applying any manual operating force, and the lever 7 and link 8 will be rotated in a folded manner to operate normally. Restore the posture (Figure 6).

As described above, the tilting posture maintaining device of this embodiment can quickly and easily restore the mirror housing 3 to its normal posture. Since the only members that may be touched during this operation are the outer surface of the mirror housing 3 and the operating lever 7b of the lever 7, there is no risk of the fingertip being caught by the link, and it is safe.

FIG. 12 shows an embodiment different from the above, and is a diagram corresponding to FIG. 9 (locked state) in the previous example. The difference from the previous example is that, as a means for locking the link 7 from rotating in the clockwise 9 direction, a strut protrusion 13 and a page holder 8a are integrally connected to the link 8.

Next, a different embodiment from the above will be described with reference to FIGS. 13 to 19. FIG. 13 is a perspective view in a tilted posture, and FIG. 14 is a horizontal sectional view in a normal posture.

This embodiment is an improvement by applying the present invention to the buffer type door mirror shown in Fig. 2, and Fig. 15 is an exploded perspective view of the components added to apply the present invention. Mirror base 2. Mirror housing 3, bracket 5. The front shaft 5a and the tension spring 6 are the same or similar components to those in a conventional shock-absorbing door mirror.

6a is a hook plate for a tension spring.

A pair of links 107 and 108 are configured, and the link 1
07 is rotatably attached to the mirror base 2 via a shaft 107a. 2a is a bearing bracket fixed to the mirror base 2 for pivotally mounting the link 107.

For convenience of reading, FIG. 15 depicts the single bracket 2a divided into two parts.

On the other hand, connect one end of the link 108 to the front shaft 5b'
.

It is rotatably attached to the mirror housing 3.

This front shaft 5b' is a shaft member that hinges the bracket 5 to the mirror housing 3 as described above, but the front shaft 5b' of this embodiment extends upwardly compared to the front shaft 5 of the conventional device. It is configured to also serve as a mounting member for the link 108. 3c is a bearing bracket fixed to the mirror housing 3 to support the front shaft 5b'.

The free ends of the pair of links 107 and 108 are rotatably pivoted by a connecting pin 109. In this embodiment, as shown in FIG. 15, an I-shaped connecting bin 109 is constructed, and links 107 and 108 are rotatably attached to the vertical sides of the coupling bin 109.

In the normal posture (Fig. 14), the above link 107
, 108 are in a bent position around the connecting bin 109, but when the mirror housing 3 is rotated simultaneously in multiple directions to the left in the figure on the rear shaft 5a, as shown in FIG. The pair of links 107 and 108 rotate relative to each other and become substantially in a straight line. When the links 107 and 108 are further rotated in the same direction and both links 107 and 108 form an obtuse angle as shown in FIG.
A stopper protrusion 2b is fixed to the bearing platen 2a to prevent its rotation. Link 1 as shown in the figure
07 comes into contact with the stopper protrusion 2b to stop the rotation (that is, clockwise in the drawing of the link 107). A torsion coil spring 110 is constructed and externally fitted on the shaft 107a, and both ends thereof are layered on the bearing bracket 2a and the link 107, respectively.

A manual operation lever 110 is configured, and the above-mentioned cross-shaped connecting pin 1
09, and one end of the torsion coil spring 112 is attached to the link 10 with a mounting screw 112a.
8, and the coil part is connected to the above-mentioned bent-shaped connecting pin 109.
The other end is attached to the manual operation lever 111. In this embodiment, as described above, the horizontal part of the L-shaped connecting pin 109 is made perpendicular to the link 108, and the manual operating lever 111 is pivotally supported by the horizontal shaft part perpendicular to the link 108. The torsion coil spring 112 allows the torsion coil spring 112 to assume a substantially vertical position when the torsion coil spring 112 is not subjected to any particular external force. However, #1 above! Vertical means approximately perpendicular to the horizontal plane.

When the mirror housing 3 is tilted as shown in FIG. 13, the manual operation lever 11 is not subjected to any external force, so that it is almost vertical. Further, when the mirror housing 3 is in the normal position as shown in FIG. escaping interference.

In the door mirror of the embodiment described above, as shown in FIG. 16, when the mirror housing 3 is held by hand and tilted in the direction of the arrow, the pair of links 107 and 108 are aligned in a straight line. When the mirror housing 3 is released from the mirror housing 3 in this state, the link 107 is rotated clockwise in the drawing by the torsion coil spring 110, and the mirror housing 3 is restored and rotated in the opposite direction by the action of the tension spring 60.

When the link 107 is rotated clockwise as described above, the link 1o8 is accordingly rotated counterclockwise! As shown in FIG. 17 on page 7, the link 107 comes into contact with the stopper protrusion 2b, and the mutual rotation of the links 107 and 108 is locked. Therefore, the mirror housing 3 is prevented from restoring rotation, and the mirror housing 3 is held in the tilted position.

Due to the above-mentioned action, the door mirror of this embodiment is such that once you apply hand force to the mirror housing 3 and tilt it, the mirror housing 3 maintains its tilted position even if you release your hand, so that it is easy to operate when entering the garage. This makes it easier to pass between narrow obstacles, such as when passing through narrow obstacles.

In order to restore the mirror housing 3 to its normal posture, the first
When the mirror housing 3 is tilted as shown in Figure 8, the operation lever 111 is exposed, so press the tip of the lever with your fingertips to apply a force perpendicular to the spine of the paper as shown in Figure 18.

As shown in FIG. 19, when a force in the direction of arrow P is applied to the connecting pin 109 via the manual operation lever 111, the link 107 moves in the counterclockwise direction 9 in this figure, and the link 1
08 are also rotated in the clockwise direction,
Since both links 107 and 108 are folded up, the mirror housing 3 does not have to be stopped once again to rotate. Accordingly, the mirror housing 3 is rotated to its normal position by the action of the tension spring 60, and is held in that position, resulting in the state shown in FIG. 14.

In this state, the manual operation lever 111 is in contact with the hook play 6a, and the reaction force thereof causes the torsion coil spring 112 to bend, so that it is folded and stored in a state that is more inclined than the vertical position.

As described above, the tilting posture maintaining device of this embodiment can quickly and easily restore the mirror housing to its normal posture. The parts that must be touched during this operation are the outer surface of the mirror housing 3 and the manual operation lever 111.
Since it is only connected to the tip of the link, there is no risk of your fingertips being pinched by the link, and it is safe.

FIG. 20 to FIG. 26 will be explained. FIG. 20 is a perspective view in a tilted posture, and FIG. 21 is a horizontal sectional view in a normal posture.

This embodiment is an example in which the present invention was applied and improved to the buffer type door mirror shown in Fig. 2 on page 19, and Fig. 22 is an exploded perspective view of the components added to apply the present invention. . Mirror base 2. Mirror housing 3, bracket 5
．． The front shaft 5a and the tension spring 6 are the same or similar components to those in a conventional shock-absorbing door mirror.

A pair of links 207 and 208 are configured, and the link 2
07 is rotatably attached to the mirror base 2 via a shaft 207a. 2a is a bearing bracket fixed to the mirror base 2 for pivotally mounting the link 7.

(Figure 22 is for the convenience of reading the above one bearing platen)
2a is divided into two parts.

On the other hand, one end of the link 208 is rotatably attached to the mirror housing 3 via the front shaft 5b'.

This front shaft 5b' is a shaft member that hinges the bracket 5 to the mirror housing 3 as described above, but in this embodiment, the front shaft 5b' is configured to also serve as a mounting member for the link 208. . 3c is a bearing bracket fixed to the mirror housing 3 to support the front shaft side.

The free ends of the pair of links 207 and 208 are rotatably connected by a connecting pin 209.

In the normal posture (Fig. 20), the upper rigid link 20
7 and 208 are in a bent position around the connecting pin 209, but when the mirror housing 3 is rotated all at once in the counterclockwise direction as shown in the figure by the rotation of the rear shaft 5a, as shown in FIG. The pair of links 207 and 208 rotate relative to each other and become substantially in a straight line. By further rotating the links 207 and 208 in the same direction, both links 2 are rotated as shown in FIG.
A stopper protrusion 2b is fixed to the bearing platen 2a so as to lock the rotation when 07 and 208 form an obtuse angle. As shown in the figure, the torsion coil spring 2 urges the link 207 in the direction in which the link 207 comes into contact with the stopper protrusion 2b and is locked in rotation (that is, the link 207 clockwise in the figure).
10 is configured and externally fitted onto the shaft 207a, and both ends thereof are engaged with the bearing bracket 2a and the link 207, respectively.

A manual operation lever 211 is configured, and the above-mentioned connecting pin 209
It is rotatably attached to the links 207 and 208, and the torsion coil spring 212 is used to rotate the links 207 and 208.
Turn on the power page 9 times. Torsion coil spring 21 of this embodiment
2 is externally fitted onto the connecting bin 209, and its both sides are respectively engaged with the link 208 and the manual operation lever 211, and when the manual operation lever 211 is not subjected to any other external force, it is approximately perpendicular to the link 208. Configure it so that it closes. However, the above-mentioned substantially right angle has a wide allowable range, and for example, an angle of about 90°±15° can be used practically.

When the mirror housing 3 is tilted as shown in FIG. 20, the manual operation lever 211 is not subjected to any external force, so it becomes almost perpendicular to the link 208 and extends outward from the opening between the mirror base and the mirror housing. It is exposed towards the target. Further, when the mirror housing 3 is in the normal position as shown in FIG. 21, the manual operation lever 21
1 is a bearing platen) which is rotated in contact with 2a,
It is at an acute angle (approximately 30° in this example) with respect to link 208 .

The door mirror equipped with the tilting posture holding device described above is
As shown in FIG. 23, when the mirror housing 3 is held by hand and tilted in the direction of the arrow, the pair of page 22 links 207 and 208 are aligned substantially in a straight line.

When the mirror housing 3 is released from the mirror housing 3 in this state, the link 207 is rotated clockwise in the drawing by the torsion coil spring 210, and the mirror housing 3 is restored and rotated in the opposite direction by the action of the tension spring 6.

When the link 207 is rotated clockwise as described above, the link 208 is accordingly rotated counterclockwise and the second
As shown in FIG. 4, the stopper protrusion 2b comes into contact with the link 207, and the mutual rotation of the links 207 and 208 is locked. Therefore, the restoring rotation of the mirror housing 3 is prevented, and the mirror housing 3 is held in the tilted position.

Due to the above-mentioned action, in the door mirror of this embodiment, once the mirror housing 3 is tilted by applying force of the hand, the mirror housing 3 maintains the tilted posture even if the hand is released.

In order to restore the mirror housing 3 to its normal posture, the second
When the mirror housing 3 is tilted as shown in Fig. 5, the tip of the operating lever 211 is exposed (see page 23) and held by hand, and a force is applied in the pushing direction as shown by the arrow P.

As shown in FIG. 26, when a force in the direction of arrow P is applied to the connecting bottle 209, the link 207 is rotated counterclockwise in the figure, and the link 208 is similarly rotated clockwise, so that both links 207, 208 Since the mirror housing 3 is folded, the mirror housing 3 is no longer prevented from rotating back to its original position. Therefore, the mirror housing 3 has a tension spring 60
As a result, it is rotated to a normal posture and maintained in that state, resulting in the state shown in FIG. 21.

As described above, the tilting posture maintaining device of this embodiment can quickly and easily restore the mirror housing to its normal posture. Since the only parts that need to be touched during this operation are the outer surface of the mirror housing 3 and the tip of the manual operation lever 211, there is no risk of the fingertip being caught in the link, and it is safe.

A further different embodiment from the above will be described with reference to FIGS. 27 to 33. Figure 27 is a perspective view of JP-A-Sho G in a tilted position.
O-161230(7) Figure 4 is a horizontal sectional view in the normal posture.

This embodiment is an improvement by applying the present invention to the shock-absorbing door mirror shown in FIG. 2, and FIG. 29 is an exploded perspective view of the components added to apply the present invention. Mirror base 2. Mirror housing 3, bracket 5. The front shaft 5a and the tension spring 6 are the same or similar components to those in a conventional shock-absorbing door mirror.

A pair of links 307 and 308 are configured, and the link 3
07 is rotatably attached to the mirror base 2 via a shaft 307a. 2a is a bearing bracket fixed to the mirror base 2 for pivotally mounting the link 307.

For convenience of reading, Figure 29 shows the above one bearing bracket)
2a is divided into two parts.

On the other hand, one end of the link 308 is rotatably attached to the mirror housing 3 via the front shaft 5b'.

This front shaft 5b' is a shaft member that hinges the bracket 5 to the mirror housing 3 as described above, but the front-1 shaft 5b' of this embodiment extends upwardly compared to the front shaft length of the conventional device. Then, install the link 308 and -? Page 5 - The torsion coil spring 311 is attached so that it also serves as a member. 3a shown in FIG. 29 is the front axis 5b'
This is a bearing bracket fixed to the mirror housing 3 to support the mirror housing 3.

The free ends of the pair of links 307 and 308 are pivoted to the pivot point by a connecting pin 309.

In the normal posture (Fig. 28), the above link 307
, 308 are in a bent position around the connecting bin 309, but when the mirror housing 3 is rotated all at once in the counterclockwise direction as shown in the figure around the rear shaft 5a, as shown in FIG. The paired links 307, 308 rotate relative to each other and become substantially in a straight line. When the links 307 and 308 are further relatively rotated in the same direction and both links form an obtuse angle as shown in FIG. 31, the link 308 is provided with a stopper protrusion 308a that stops the relative rotation. Install consecutively.

As shown in FIG. 31, link 307 is linked to link 308.
A torsion coil spring 310 is configured to urge the link 307 in a direction in which relative rotation is stopped by contacting the stopper protrusion 308a of the link 307 (in other words, to rotate the link 307 clockwise in the figure).

It is fitted onto the shaft 307a, and its both ends are engaged with the bearing bracket 2a and the link 307, respectively.

Furthermore, a torsion coil spring 311 is configured to apply rotational force in the opposite direction to the torsion coil spring 310, and the front shaft 5 is
b', one end of which is fixed to the mirror housing 3 with a mounting screw 311a, and the other end of which can be engaged with and removed from the link 308 in a raised manner.

As shown in FIG. 32, the operation bar 312 is attached to the other end of the torsion coil spring 311, and the side 311 on which the torsion coil spring 311 supports the operation bar 312
An arcuate cam plate 313 that acts to lift this side 311b is provided below b and is fixed to the mirror housing 3.

The torsion coil spring 311 shown in FIG. 30 is shown in an unloaded state. In this way, the torsion coil spring 311
has elasticity in the direction of closing both sides.

As shown in FIG. 31, when the mirror housing 3 is tilted and you hold the operation bar 312 with your fingertips and pull it toward you (downward in the figure) as shown by arrow C, the operation bar ---? 7---
- Page - 312 is guided by the cam plate 313, crosses the link 308, is caught on the front edge of the link 308 (lower side in the figure), and is rotated clockwise by the elasticity of the torsion coil spring 311. energize the power.

The mechanism by which the operating bar 312 passes over and engages the link 2308 in the above operation will now be described with reference to FIG. 33. This figure is a developed view drawn with the viewpoint placed on the front shaft 5b' that pivotally supports the link 308. A side 311b of the torsion coil spring 311 that supports the operation bar 312 is shown as a cross section.

For convenience of explanation, the operation bar in the no-load state is shown as 312.
-1, the side of the torsion coil spring at that time is 311b-t
The operation bar with both sides of the torsion coil spring pulled open is shown as 312-3, and the spring side is shown as 311b.
-3, and intermediate states between the above two states are shown as 312-2 and 311b-z, respectively.

This figure shows the link 30 in three cases, as shown in the figure.
This shows the position of 8.

As shown in FIG. 30, a pair of links 307, 30
The solid line 308-n represents the cross section of the link 308 when the links 307 and 308 are aligned in a straight line, and the cross section of the link 308 when the mirror housing 3 is in the normal position and the links 307 and 308 are folded as shown in FIG. The cross section is represented by the dotted line 308-f, and the 31st
As shown in the figure, the link 308 when the pair of links 307 and 308 are prevented from rotating by the stopper protrusion 308a is represented by a chain line 308-4.

Now, assuming that there is no link 308, when the operation bar 312-1 is pulled toward you (to the left in this figure), the support part of the torsion coil spring is guided by the cam plate 313 and follows an upward convex trajectory. The operation bar drawn and supported by this is 3
From position 12-1 to position 312-2 to 312-:
After reaching the position 1, the lower end of the operating bar draws a convex upward trajectory as shown by the imaginary line S, almost parallel to the cam plate 313.

However, when the link is in position 308-, the lower end of the operation bar rides on the top surface of link 30B-1 while moving in the direction of arrow A during the curve SK&, and the lower end of the operating bar runs over the upper surface of link 30B-1.
- After sliding the top surface of link 308-z as per the page, 312-3
reach the position.

When you release your finger from the operating bar 312-3 in this state, the operating bar is biased to the right in the figure by the elasticity of the torsion coil spring, and moves to the right along the curve S as shown by arrow C.
Push the link 308-t to the right in the figure past the 308-n position and approach the 308-f position.

In this case, the operation bar 312 moves the link 308 completely to 30
It is not necessary to return to the 8-f position, and it is sufficient to allow it to pass through the neutral position (-straight line state) 308-n. Due to the action of the cam plate 313, the operation bar climbs over the link 308-f and returns to the position 312-1 in the same manner as before.

As shown in FIG. 31, the torsion coil spring 31
0 biases link 307 clockwise and link 308 counterclockwise. Therefore, in order to rotate the link 308 in the opposite direction of the arrow C by the torsion coil spring 311 as described with reference to FIG. 34, the spring constant of the torsion coil spring 311 is set to be larger than the spring constant of the torsion coil spring 310.

30 □ The door mirror equipped with the tilting posture holding device described above is
As shown in FIG. 30, when the mirror housing 3 is held in the hand and tilted in the direction of the arrow, a pair of links 307, 3
08 are aligned in a straight line. When you release your hand from the mirror housing 3 in this state, the link 307 is rotated clockwise in the figure by the torsion coil spring 310, and
The mirror housing 3 is rotated in the opposite direction by the action of the tension spring 6.

When the link 307 is rotated clockwise as described above, the link 308 is accordingly rotated counterclockwise and the second
As shown in FIG. 9, the stopper projection 308a is connected to the link 307.
The links 307 and 308 are prevented from rotating relative to each other. Therefore, the mirror housing 3 is prevented from restoring rotation, and the mirror housing 3 is held in the tilted position.

Due to the above-mentioned action, once the door mirror of this embodiment is tilted by applying hand force to the mirror housing 3, even if the hand is released, the mirror housing 3 maintains the tilted posture on its side, so that it is easy to put into the garage. 31 □ How can passing between narrow obstacles become easier?

In order to restore the mirror housing 3 to its normal posture, the third
Since the operating lever 312 is exposed when the mirror housing 3 is tilted as shown in Figure 2, pull it toward you with your fingertips and release it. Then, due to the action described with reference to FIG. 33, the pair of links 307 and 308 are rotated in the folding direction by the biasing force of the torsion coil spring 311, and the restoration rotation of the mirror housing 3 is no longer blocked. Therefore, the mirror housing 3 is restored to its normal posture by the action of the tension spring 6, and becomes the state shown in FIG.

As described above, the tilting posture maintaining device of this embodiment can quickly and easily restore the mirror housing to its normal posture. Since the only parts that need to be touched during this operation are the outer surface of the roller housing 3 and the upper half of the operation bar 312, there is no risk of the fingertips getting caught in the link, and it is safe.

FIG. 34 shows an embodiment different from the above, and is a diagram corresponding to FIG. 31 (locked state) in the previous example. The difference from the previous example is that a stopper 2b is integrally connected to the bearing platen 2a that pivotally supports the link 307 as a means for stopping the link 307 from rotating in the clockwise direction. be. When carrying out the present invention, the means for locking the rotation of the pair of links can be arbitrarily configured using known techniques.

As described in detail above, the device of the present invention provides a shock-absorbing door mirror with a free end of a link rotatably supported on the mirror housing and a link rotatably supported on the mirror base. A locking means is provided to limit the angle at which the pair of links mutually rotate in a specific direction from a state in which the pair of links are in a straight line. By providing a spring means that applies rotational force in a specific direction to the link, the mirror housing can be quickly and easily held in a tilted position or restored to a normal position with a simple operation.

[Brief explanation of the drawing]

FIG. 1 is an explanatory view of the installed state of the door mirror, and FIGS. 233-4 are partial sectional plan views illustrating the structure and operation of the shock-absorbing door mirror. 5 to 11 show an embodiment of the tilted posture holding device of the present invention, FIG. 5 is a perspective view of the tilted posture, FIG. 6 is a horizontal cross-sectional view of the normal posture, and FIG. 7 is the tilted posture. An exploded perspective view of the components to be held, FIG. 8 is a horizontal sectional view of the device held in a tilted position by hand, FIG. 9 is a horizontal sectional view of the device held in the tilted position with the hand released, and FIG. 10 is a horizontal sectional view of the device held in the tilted position. FIG. 11 is a schematic perspective view of the posture holding member and is an explanatory diagram of its operation. FIG. 12 is a horizontal sectional view of an embodiment different from the above, and corresponds to FIG. 9 in the previous example. 13 to 19 show embodiments different from those described above, and FIG. 13 is a perspective view in a tilted position, and FIG.
Figure 4 is a horizontal sectional view of the normal posture, Figure 15 is an exploded perspective view of the components that maintain the tilted posture, Figure 16 is a horizontal sectional view of the tilted posture with the hands, and Figure 17 is the horizontal sectional view with the hands released. 18 is a schematic perspective view for explaining the operation, and FIG. 19 is a diagram for explaining the operation. 20 to 26 show further different embodiments, FIG. 20 is a perspective view in a tilted posture, FIG. 21 is a horizontal sectional view in a normal posture, and FIG. An exploded perspective view, FIG. 23 is a horizontal sectional view of the device in a tilted position with the hand, FIG. 24 is a horizontal sectional view of the device held in the tilted position with the hand released, and FIG. 25 is an outline for explaining the operation. FIG. 26 is an explanatory diagram of the operation. 27 to 33 show an embodiment different from any of the above-mentioned embodiments, and FIG. 27 is a perspective view in a tilted position;
Fig. 28 is a horizontal sectional view of the normal posture, Fig. 29 is an exploded perspective view of the components that maintain the tilted posture, Fig. 30 is a horizontal sectional view of the state in which the hand is held in the leaning posture, and Fig. 31 is a horizontal sectional view with the hand released. te1
FIG. 32 is a schematic perspective view for explaining the operation, and FIG. 33 is a diagram for explaining the operation. FIG. 34 is a horizontal sectional view of a further different embodiment, and corresponds to FIG. 30 in the previous example. 1...Door mirror, 2...Mirror pace, 2a...
・Bearing bracket, 2b... Stopper protrusion, 3...
Mirror housing, 5...bracket, 5a...
Rear axis, 5b, 5b'... Front axis, 7... Link, 7a... Axis, 8... Link, 8a... Stopper protrusion, 9... Connection bottle, 10, 12. ...Torsion page 35 Coil spring, 11...Manual operation lever, 107...
Link, 107a... Axis, 108... Link, 10
8a... Stopper protrusion, 109... L-shaped connecting pin, 110, 112... Torsion coil spring, 111
...Manual operation lever, 207...Link, 207a
...shaft, 208... link, 208a... stopper protrusion, 209... connecting bin% 210, 212.
・・Torsional coil spring, 211 ・・Manual operation 1 collar
1307...Link, 307...Axis, 308...
Link s 308a...stopper protrusion, 309...
Connection bottle, 310, 311... torsion coil spring,
311a...side supporting the operation bar, 312...
- Operation bar, 313... cam plate. Patent Application Person Isuso Jidosha Co., Ltd. Ichikoh Industries Co., Ltd. Agent Patent Attorney Tadashi Akimoto Minoru Kaisho GO-IG1230 (1 Figure 1 Figure 2 Figure 3 Figure 4 JP-A-Sho GO-161230 (12) Figure 23 JP-A-161230 (19) Figure 32 Figure 33 Figure 11 - Figure 34

Claims (1)

[Claims] 1. A mirror housing with a mirror attached thereto is rotatably supported on a mirror base fixed to the vehicle body, and a tension spring is interposed between the mirror housing and the mirror base. In a shock-absorbing door mirror that supports the mirror housing in its normal position, the free end of the link is rotatably supported with respect to the mirror housing, and the link is rotatably supported with respect to the mirror base. A locking means is provided to limit the angle at which the pair of links mutually rotate in a specific direction from a state in which the pair of links are in a straight line. A tilting posture holding device for a door mirror, characterized in that a spring means is provided for biasing a rotational force in a specific direction to a link. 2. Among the pair of links, the link rotatably supported on the mirror base is extended so that its end protrudes into the vehicle interior so that it can be operated from within the vehicle interior. A device for maintaining a tilted posture of a door mirror according to claim 1. 3. The link described above shall be equipped with a lever for manual operation, and the lever for manual operation shall be supported by a horizontal shaft supported by at least one of the pair of links. 2. The device for holding a tilted position of a door mirror according to claim 1, further comprising a spring means for applying rotational force to the manual operating lever so as to make it substantially vertical. 4. The link shall be equipped with a lever for manual operation, and the lever for manual operation shall be rotatably supported on at least one of the pair of links, and the lever shall be rotatably supported with respect to the link. 2. The device for holding a tilted posture of a door mirror according to claim 1, further comprising a spring means for biasing the rotational force so as to form a substantially right angle. 5. The above-mentioned link shall be provided with a spring means that applies a rotational force opposite to the specific direction, and this spring means is provided with the above-mentioned link 1.
2. The device for holding a tilted posture of a door mirror according to claim 1, wherein at least one of the pair of links is configured to be able to engage and disengage from the third page.