JP2532327Y2 - door mirror - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a door mirror in which a mirror is tilted by swinging an operation lever up, down, left and right from a vehicle interior.

(Prior Art) A conventional door mirror of this type is disclosed in Japanese Patent Application Laid-Open No. 62-134346.
Are disclosed in US Pat.

This is, as shown in FIG.
However, the fulcrum ball 101 provided inside the base 109 can swing vertically and horizontally.

Therefore, when the user first operates the knob 102 of the operation lever 100 in the left-right direction, that is, in the direction of (c) or (d) in FIG. 7, the mirror 106 is moved via the shaft 103, the horizontal rod 104, and the arm 105. You can adjust the horizontal tilt. Next, when the mirror is operated in the vertical direction, that is, in the direction (a) or (b) in FIG. 7, the vertical inclination of the mirror 106 can be adjusted via the shaft 103 and the C-shaped hook 107.

(Problem to be solved by the invention) However, in order to restrict swinging of the operation lever 100 only in the vertical and horizontal directions, in other words, in order to prevent rotation, a pair of guide pins 108 are attached to the fulcrum ball 101. The guide pins 108 are protruded to guide the guide pins 108 in the base 109.

Therefore, the shape of the fulcrum sphere 101 becomes complicated, and the manufacturing cost becomes high. Further, since the diameter of the guide pin 108 cannot be increased due to space restrictions, a material having high strength must be selected.

The present invention was created to solve such problems of the prior art, and reduced the manufacturing cost of the fulcrum ball.
An object of the present invention is to provide a door mirror capable of simplifying a guide mechanism and facilitating strength selection.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a mirror visor is mounted on a shaft cylinder erected on a base projecting from a stay, and a fulcrum ball is provided inside the base via a fulcrum ball. A door mirror for supporting an operation lever rotatably in up / down and left / right directions while tilting a mirror pivotally supported by a central pivot in a mirror visor by the operation lever, thereby adjusting an angle. A shaft loosely mounted in the shaft cylinder is vertically moved and rotated by a lever, and the upper end of the shaft and a connecting arm connected to the back side of the mirror via a ball joint are moved vertically. And a door mirror connected by a conversion means for converting the rotation into a forward and backward and left and right tilt of the mirror, wherein the operating lever is provided with an operating punch projecting into the vehicle interior, A connecting punch connected to the shaft and a vertical punch supported in the stay, a fulcrum ball is formed on the vertical punch, and the stay has a vertical punch portion separated from the fulcrum ball. A door mirror provided with a guide groove which is fitted and has a shape that allows only vertical movement of the vertical punch around the fulcrum of the fulcrum.

(Operation) In the above configuration, the operating lever swings up and down about the fulcrum by fitting the vertical punch into a guide groove that allows only the vertical punch to move in the vertical direction.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a door mirror according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a transverse sectional view of the same.

As shown in FIGS. 2 and 3, the mirror 1 is held by a mirror holder 2, which is supported by a bracket 31 by a ball pivot 4, and furthermore, by a detent rod 56, a horizontal axis X and a vertical axis. Can be tilted around Y,
The mirror visor 3 is screwed to a bracket 31.

The mirror visor 3 is supported by a shaft cylinder 9 erected on a base 6a protruding from a mounting stay 6 mounted on a side surface of a door of the vehicle so that the mirror visor 3 can be tilted in the front-rear direction of the vehicle. A winding spring 7 is wound around the outer periphery of the shaft cylinder 9.
The winding spring 7 is held in a compressed state between the stopper plate 8 locked on the upper surface side of the barrel 9 and the bottom surface of the annular groove 10 of the bracket 31, and the lower surface of the bracket 31 and the seating surface of the barrel 9 The mirror visor 3 is elastically supported on the base 6a via a plurality of ball clutches 44 arranged between the mirror visor 3 and the mirror visor 3. In addition, the shaft cylinder 9 supports the shaft 25 so as to be able to move up and down (up and down) and to be rotatable.

As shown in FIGS. 2 and 3, the operating lever 12 projects into the vehicle interior, and has an operating rod 13 provided with a knob 11 at a protruding end thereof. It comprises a vertical rod 14 extending in parallel and supported in the stay 6, and a connecting rod 15 extending from the lower end of the vertical rod 14 and having a distal end connected to a shaft 25.

Specifically, as shown in FIGS. 1 and 2, the vertical rod 14 has a fulcrum sphere 16 formed at an intermediate portion.
Are sandwiched between the bearings 18 and 19 and are slidably supported on the inner wall surfaces of the bearings 18 and 19. The bearings 18, 19 are connected by a male screw 20,
One bearing 19 is formed integrally with the stay 6.

The stay 6 is integrally formed with a guide member 17 having a U-shaped guide groove 17a into which an upper vertical rod portion 14a separated from the fulcrum ball 16 is fitted. The guide groove 17a allows only the movement of the operation lever 12 in the vertical movement direction (arrows A and B). That is, the width of the guide groove 17a is substantially equal to the diameter of the vertical rod portion 14a, and is open in the front-rear direction.

A ball pivot 27 at the tip of a lower end arm 29 extending horizontally from the lower end of the shaft to the cylindrical hole 51 at the tip 15a of the connecting rod 15 is engaged. The stay 6 is formed with a through hole 21 for receiving the lower end arm 29 extending from the lower end of the shaft and the distal end 15a of the connecting rod 15.

The tip 15a of the connecting rod 15 is formed in a cylindrical shape having an enlarged diameter,
The outer periphery of the through hole 21 when swinging up and down and left and right directions.
Is brought into contact with the inner peripheral wall surface 21a. Therefore,
By this contact, the movement of the operation lever 12 in the vertical and horizontal directions is restricted to a certain range, and the movement in the restricted certain range is converted into the elevating and rotating and rotating movement of the shaft 25. Has become.

As described above, the guide members are provided above and below the wall surface in the stay 6.
17 and a bearing 19 are integrally formed, and the operation lever 12 is supported by a vertical rod portion 14 a above the vertical rod 14 of the operation lever 12 and a fulcrum ball 16.
Is assembled in the stay 6 because the stay 6
This is because the internal space is effectively used, the structure of the operation lever 12 is simplified, and the strength can be increased.

Conversion means for connecting the upper end of the shaft 25 and the connection arm 39 on the back of the mirror, and converting the vertical movement and rotation of the shaft 25 into tilting of the mirror 1 back and forth and left and right is rotatable with the shaft 25 but not vertically movable. Two arms 32,34 pivoted to
, A pin 37 substantially parallel to the shaft 25, and a winding spring 30 wound around the pin 37.

One end of the conversion arm 28 forms a ball joint on the shaft 25 and the other end forms a ball joint on the rear side of the mirror 25 in order to convert the lifting and lowering and rotating movement of the shaft 25 into forward and backward and left and right tilts of the mirror 1.
Connecting arm 39 vertically suspended via the ball pivots 40b, 40c
It is connected to. As shown in FIG.
Reference numeral 28 is substantially U-shaped, and the arms 32, 34 have holes 35, 36 through which the shaft 25 is inserted at one end. The upper and lower arms 32 and 34 have a horizontal upper flat surface 50a and a horizontal lower flat portion 50b, respectively. The intermediate connecting portion 33 at the other end of the arm portion 32, 34 has an upright surface orthogonal to the lower flat surface 50b. The intermediate connecting portion 33 is provided with an engaging hole 54 into which a ball pivot 40a provided at the end opposite to the mirror of the connecting arm 39 is formed to form a ball joint, and the connecting arm 39 is connected via the ball pivot 40a. And is rotatably connected to the intermediate connecting portion 33.

As shown in FIG. 5, the upper end of the shaft 25 has a small diameter, and a step 53 is formed between the shaft 25 and the adjacent large diameter portion. The large diameter part of the shaft 25 is inserted into the hole of the lower arm part 34.
36, and further inserted into the hole 35 of the upper arm 32, the lower surface of the upper arm 32 is positioned in contact with the step 53 of the shaft 25, and a circlip is attached to the tip of the shaft 25 protruding from the hole 35. Attach 55 to secure it. A pin 37 parallel to the shaft 25 is formed on the lower flat surface 50b. This pin
A winding spring 30 as a clutch member is wound around 37,
As shown in FIG. 6 (a), both ends 43a, 43b of the coil spring 30 hold flat surfaces 38a, 38b formed by cutting out both sides of the shaft 25. The flat surfaces 38a, 38b are parallel to each other and the pins 37
The winding spring 30 wound around is stopped by a male screw 41 (FIG. 1).

As described above, the connection arm 39 has two ball pivots 40b, 40c connected to the mirror rear side at one end, and the engagement hole 54 provided at the intermediate connection portion 33c of the conversion arm 28 at the other end. Has a ball pivot 40a to enter and two ball pivots 4
Reference numerals 0b and 40c are connected to the back side of the mirror 1 symmetrically with respect to the horizontal axis X of the mirror 1. Conversion arm when shaft 25 rises
28 also rises, and pulls up the ball pivot 40a, which engages the central tip. The mirror 1 has a ball pivot 4 at its center.
Because it is pivoted and stopped by
The upward movement of the shaft 25 is converted into a rotational movement about the X axis of the mirror, and the upper spherical pivot 40 engages with the rear side of the mirror.
b pushes the mirror forward, and the lower ball pivot 40c acts to pull backward, thereby tilting the mirror 1 forward. Mirror 1
When the conversion arm 28 is lowered, the angle is adjusted by the operation reverse to that described above.

The angle adjustment of the mirror 1 in the left-right direction is performed by the rotation of the shaft 25. That is, the shaft 25 is
In the figure, when rotated in the counterclockwise direction, both ends of the winding spring 30 wound around the pin 37 eccentrically mounted on the shaft 25 are flat surfaces.
Since the conversion arm 28 is rotated in the counterclockwise direction, the connecting arm 39 is
The mirror 1 connected by the ball pivot 4 rotates clockwise about the vertical axis Y. In addition, when the shaft 25 is rotated clockwise, the conversion arm 28 is rotated in the opposite direction to the above, and the mirror 1 is tilted counterclockwise.

Next, the operation of the door mirror according to the present embodiment will be described.

When the operation lever 12 is operated in the right direction (the direction of arrow C in FIG. 1), the connection
15 rotates counterclockwise. At this time, the vertical groove 14 is restricted from tilting in the direction of arrow C by the guide groove 17a separated from the fulcrum ball 16. Due to the rotation of the connecting rod 15, the ball pivot 27 is displaced to the left (in the direction of the arrow CII in FIG. 1), the lower end arm 29 moves accordingly, and the shaft 25 rotates clockwise. The rotational movement of the shaft 25 is transmitted to the conversion arm 28 via the winding spring 30, and the conversion arm 28 rotates in the same direction as the shaft 25, pulls the connecting arm 39, and the mirror 1 rotates counterclockwise (in the direction of the arrow CIII). Move and change the angle. Similarly, when the operation lever 12 is operated in the left direction (the direction of arrow D in FIG. 1),
The conversion arm 28 rotates counterclockwise, and the mirror 1 moves clockwise (in the direction of the arrow DIII in FIG. 1) to change the angle.

Next, when the operation lever 12 is operated downward (in the direction of arrow B in FIG. 1), the vertical rod 14 rotates downward around the fulcrum 16. At this time, since one end of the guide groove 17a is open, the vertical lever portion 14a above the fulcrum 16 is not obstructed by the wall surface of the guide groove 17a, and the operation lever 12 is rotated by a predetermined angle in the B direction. The rotation of the vertical rod 14 raises the connecting rod 15 around the fulcrum sphere 16, and the ball pivot 27 also moves as indicated by the arrow in FIG.
Displaced in the BII direction, the lower arm 29 rises and the shaft 25 rises accordingly. When the shaft 25 rises, the conversion arm 28 also rises, and the mirror 1 moves around the horizontal axis X (first
(In the direction of the arrow BIII in the figure), it turns forward and tilts, and the angle changes. Similarly, when the operation lever 12 is operated upward (in the direction of arrow A in FIG. 1), the mirror 1 moves around the horizontal axis X (arrow AIII in FIG. 1).
Direction) Rotate and tilt backward to change the angle.

When a force acting on the mirror visor 3 is applied to the rear of the vehicle, the ball clutch 44 between the seating surface of the barrel 9 and the lower surface of the bracket 31 is disengaged, and the mirror visor 3 is mounted on the base 6a. It starts to rotate around 9. At this time, the mirror 1 connected to the mirror visor 3 via the mirror holder 2 by the ball pivot 4 starts rotating integrally with the mirror visor 3 around the shaft cylinder 9, and the conversion arm 28 connected to the mirror 1 also moves. It follows and rotates integrally. On the other hand, the operating lever 12 also initially follows, but the outer periphery of the tip 15a of the connecting rod 15 contacts the inner peripheral wall surface 21a of the end of the through hole 21 so that the rotation is restricted and locked, and the mirror visor 3 rotates. As a result, both ends 43a and 43b of the coil spring 30 forming the clutch member
After being separated from the flat surfaces 38a and 38b of FIG. 5, they ride on the arcuate surfaces 45a and 45b of the shaft 25 as shown in FIG. 6 (b). As a result, since the rotational movement of the conversion arm 28 is not transmitted to the shaft 25, the mirror visor 3 can be tilted rearward of the vehicle without any excessive force acting on the operation lever 12.

(Effects of the Invention) As described above, according to the door mirror of the present invention, the operating lever has an operating punch projecting into the vehicle interior, a connecting punch connected to the shaft, and a vertical punch supported in the stay. The vertical punch is formed with a fulcrum sphere, and the stay is fitted with a vertical pier portion separated from the fulcrum, and the vertical punch moves vertically in the vertical direction about the fulcrum. A guide groove having a shape allowing only movement is provided. Therefore,
Since the operating lever can be turned around the vertical punch without providing a guide pin as conventionally used for the fulcrum, the shape of the fulcrum is simplified and integrated with the fulcrum. The manufacturing of the operating lever can be simplified, and the manufacturing cost can be reduced. In addition, the guide groove is different from the prior art fulcrum ball guide pin, and the thickness and size of the member can be freely changed. Therefore, the strength can be easily selected by using a relatively extra space in the stay.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a door mirror angle adjusting device according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a door mirror provided with the angle adjusting device, FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2, and FIG.
6 (a) and 6 (b) are cross-sectional views for explaining a relationship between a winding spring and a shaft, and FIG. 7 is an angle of a conventional door mirror. It is a perspective view which shows an adjustment device. 1 ... Mirror, 3 ... Mirror visor, 6 ... Stay,
6a: Base, 9: Shaft barrel, 12: Operation lever, 13 ...
Operating rod, 14 Vertical rod, 14a Upper vertical rod part, 15
Connecting rod, 15a ... Tip of connecting rod, 16 ... fulcrum ball, 17 ...
Guide member, 17a …… Guide groove, 18,19 …… Bearing, 20 ……
Male thread, 21 ... Through hole, 21a ... Inner wall surface, 25 ... Shaft, 27 ... Ball pivot, 28 ... Conversion arm, 29 ... Lower arm, 30 ... Winding spring, 32, 34 ... Arm part, 33 ……
Intermediate connecting part, 37 Pin, 38a, 38b Flat surface, 39
Connecting arm, 43a, 43b ... both ends of pin, 45a, 45b ... arcuate surface.

Claims (1)

(57) [Scope of request for utility model registration] 1. A mirror visor is mounted on a shaft cylinder erected on a base projecting from a stay, and an operation lever is rotatably supported in a vertical and horizontal direction through a fulcrum ball inside the base. A door mirror in which a mirror pivotally supported by a central pivot in a mirror visor is tilted by the operation lever to adjust an angle, and a shaft loosened in the shaft cylinder is vertically moved by the operation lever. A conversion for converting the vertical movement and the rotation of the shaft into front and rear and left and right tilts of the mirror while rotating the upper end of the shaft and a connecting arm connected to the rear side of the mirror via a ball joint. A door mirror, wherein the operating lever is supported within the stay, and a connecting punch connected to the shaft; And a fulcrum ball is formed on the vertical punch,
The stay is provided with a guide groove having a shape in which a vertical punch portion separated from the fulcrum ball is fitted and which allows only vertical movement of the vertical punch around the fulcrum ball. A featured door mirror.