JPS5839089B2 - Manual door mirror - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rearview mirror for an automobile, and more particularly to a door mirror that is attached to a triangular corner of a door panel or a side window of a vehicle body.

There are two types of commonly used door mirrors, one of which is to adjust the reflection angle of the mirror.
This is a standard flat manual mirror in which the mirror itself can be held and moved by hand, and the other type is a remote-controlled door mirror whose angle can be adjusted from the driver's seat.

The present invention belongs to the former category. The above-mentioned manual door mirror is already known per se, and the most typical conventional type has a configuration as shown in FIG.

That is, when attaching the mirror main body 1 to the mounting board 2, a bowl-shaped support bracket 3 with a hemispherical surface is projected from the board, and the mirror main body is attached to this bracket via the following mechanism. Support part 4 was attached.

First, a hemispherical socket 5 is fitted onto the lower surface of the bracket 3, and this is supported by a mounting bolt 6 which is disposed through the socket, and a spring receiver γ formed at the top of the mounting bolt. A coil spring 8 is compressed between the mirror body 1 and the support portion 4, so that the mirror main body 1 can rotate in the front-back direction or in the vertical direction using the bracket portion as a fulcrum. .

As is clear from the figure, this conventional type is a cantilever type, so it is weak in strength and lacks rigidity.

Moreover, when moving the mirror body 1, which originally has a horizontally long shape, back and forth and up and down, it is moved on the same hemispherical support surface 3, even though the loads are different.
5 as a sliding surface, there were many problems, especially the lack of stability against vibrations and wind pressure.

Here, the present invention eliminates all the drawbacks of the conventional type, has high rigidity, and focuses on the horizontally elongated shape of the mirror, so that the set angle of In addition, the mirror has greater resistance to movement in the front-rear direction, and relatively light movement in the downward direction of the wrestlers, thereby increasing stability.

The present invention will be specifically explained with reference to the illustrated embodiments.
1 is a mounting board, 12 is a mirror body, and these two are connected by the following universal mechanism.

First, the shaft 13 is projected from the substrate 11, and a spherical body 14 is formed at the tip of the shaft, and a locking protrusion 15 is provided at the top.

As shown in FIGS. 3 to 5, a through hole 18 is bored in the spherical body 14 so as to be perpendicular to the axis, and the shape of the through hole is a perfect circle in cross section. Instead, it is an oval long hole.

As shown in FIGS. 7 and 8, this spherical body 14 has a hemispherical spherical bearing 16 split into two halves on its surface.
16', and then an upper mounting cap 1γ and a lower mounting cap 17', which also have hemispherical concave surfaces, are slidably fitted onto the surface of this spherical bearing.

A notch 19 is formed in the side surface of the spherical bearing to engage with the protrusion 15 of the spherical body, and a long groove 20.degree. 35 corresponding to the protrusion is also provided in the side surface of both caps.

In addition, through holes 21 and 22 are bored in the vertical direction,
The square shaft bolt 23 is inserted through this through hole and the through hole 18 provided in the spherical body 14, and the square shaft bolt 23 is connected to the spherical body 14, the spherical bearing 16, 16', and the upper and lower caps 17 in the following manner. , 17' are assembled together.

At this time, the protrusion 24 formed above the upper camp 1γ is fitted into the upper bracket 25 formed to protrude from the side line of the mirror main body 2, as shown in FIGS. 26 is fitted onto the upper surface of a spring cap 27 disposed on its lower surface, and then this cap 2γ is fitted onto the lower bracket 28 of the mirror main body 2.

Next, a coil spring 29 is installed inside the cap 2γ.
After contracting the spring holder 30, a spring holder 30 is attached to the lower surface of the spring holder 30, and the shaft angle bolt 23 passed through each of the above members is tightened through a male screw portion 31 carved in the holder.

As the bolt 23 is tightened into the holder 30 in this manner, the elastic force of the coil spring 30 acts on each of the above-mentioned members, tightening them all together as shown in FIGS. 3 and 4. can do.

In the embodiment shown by the solid line in FIG. 3, the above-mentioned members are assembled only by the shaft angle bolt 23 and the spring holder 30 which is directly screwed into this bolt, but as shown by the chain line in the same figure, If the lower surface of the spring holder is partially protruded to the side, and a tough pin screw indicated by reference numeral 32 is applied here, and the holder is fastened to the lower bracket 28 of the mirror body with this tapping screw, the following will occur. demonstrate its advantages.

In other words, even if the shaft circumferential port 23 is damaged during use, the assembly of the canknob 11, 11', spherical bearings 16, 16', spring holder 30, etc. mounted between the brackets 25 and 28 will be performed without any damage to the parts. Since everything remains assembled without being disassembled, the Mira body will not fall off.

Furthermore, the device of the present invention is provided with a so-called shockless device that absorbs the impact even if an impact is applied to the mirror body from the outside.

The structure and operation of this point will be explained below.

As shown in FIGS. 9 and 10, the spring camp 2
The upper surface of γ is provided with notches 33 at intervals of 120°, for example.
Corresponding to the notches, chevron-shaped recesses 34 are formed at the same intervals on the lower surface of the lower cap 11' that contacts the upper surface of the cap.

The notch 33 and the concave portion 34 are normally engaged with each other by the elastic force of the coil spring 29, so that the mounting angle of the square main body 2 is kept constant (neutral).

When an unexpected external force is applied to the mirror, the engagement is released against the elasticity of the spring 29, and the first
As shown by the chain line in Figure 0, the mirror main body 2 is sufficiently bent in either the front or rear direction to avoid external forces.

Incidentally, as shown in FIG. 10, the spring camp 2γ is fitted into the mirror mounting bracket 28 so as not to rotate.

This device does not necessarily need to be equipped with a shockless mechanism having the above structure. For example, as shown in FIG. As shown, when the cap is formed long in the horizontal direction over about half the circumference of the cap (numerals 20' and 35
), each member on the mirror side, including the camp, is caused to slide largely in the horizontal direction by an external force applied to the mirror, with respect to the shaft 13 and the locking protrusion 15 that fit into this long groove. becomes possible.

Therefore, even with such a configuration, external impact can be alleviated or absorbed.

Note that reference numeral 36 in FIGS. 2 to 6 indicates a rubber cover, and reference numeral 37 in FIG. 11 indicates a screw hole for attaching the board 11 to the vehicle body.

The door roller device of the present invention has the above-described configuration and exhibits the following effects.

First, the attachment relationship of the mirror main body 12 to the board 11 will be explained.
The spherical body 14 is pressed against the spherical body 14 protruding from the substrate 11 via the following member.

That is, the shaft circumferential port 23 penetrates the spherical body, and the spherical bearings 16, 16', hemispherical mounting caps 1γ, 17', spring caps 2γ, holder 30, etc. are connected to the coil spring 29 via the shaft circumferential bolts. Since it is fastened to the bracket by pressure welding force, the overall rigidity is high.

Furthermore, even when the mirror is rotated, the supported portion grips the spherical body 14, which is the supporting portion, from all sides, resulting in high stability and strong strength.

Next, the rotation movement of the mirror main body 12 relative to the substrate 11 in this device will be explained.

The rotation of the mirror is performed by rotating the mirror in the front and rear directions relative to the axis of the vehicle body, and adjusting the reflection angle appropriately;
There are two types of vertical movement for adjusting the rotation of the mirror in the vertical direction.

Regarding the forward and backward movement, the mirror 12 in this device is fitted to the fixed spherical body 14 with the circumferential bolt 23, as is clear from FIGS. When gripped and moved back and forth as indicated by the arrows in FIG. 2, the port 23 is rotated in the back and forth direction with respect to the axis of the vehicle body.

At this time, as is clear from Fig. 4, the main body of the mirror moves back and forth while rotating the upper and lower mounting caps 1γ and 1r, which are in pressure contact with the brackets 25 and 28 of the main body. This is the length range of the long grooves 20, 35 provided on the side surfaces of the camps 17, 17' (Fig. 6).

On the other hand, as is clear from FIGS. 7 and 8, the spherical bearings 16 and 16' located inside the hemispherical concave surfaces of the caps 1γ and 11' have their notches 19° 19 tightly connected to the shaft 13. Since it is engaged with, it is in a fixed state without sliding.

Therefore, the movement of the mirror back and forth is caused by the spherical bearing 1.
The surface of 6.16' and the hemispherical concave surface of mounting cap 17.17' serve as a sliding surface for sliding.

In this way, the sliding surface (
Since the sliding surface is between the outer surface of the spherical bearing and the inner surface of the mounting cap, this is hereinafter referred to as the "outer surface sliding of the spherical bearing."

The above is an explanation of the movement of the mirror back and forth, and next, the vertical movement of the mirror will be explained.

When the square main body 12 is gripped and rotated in the vertical direction as shown by the chain line in FIG. The bolt slides within a through hole 18 having an oval cross section, which is bored on the diameter line of the spherical body 14 fixed to the substrate 11, within the width of the through hole.

That is, it rotates about the center of the spherical body 14 as a fulcrum, and the range of rotation is regulated by the distance of the major axis of the elliptical hole 18 bored in the spherical body 14, as shown by the chain line in FIG. In this example, the device is configured to be able to swing up and down by 15 degrees from the neutral state.

The rotation in this case is caused by the ball (3) bearing 16, 16' surrounding the spherical body 14 and the mounting caps 17, 17.
Since the two members of ' are integrally slid over the surface of the spherical body 14, the spherical bearing has an "internally curved" relationship.

As mentioned above, the sliding surface is different from the vertical movement of the mirror in that the "outer surface sliding" is used in the back and forth movement of the mirror.

In the present invention, since the sliding surface is made different between the vertical movement and the longitudinal movement of the □ roller, the following effects are achieved.

As is well known, the rearview mirror has a horizontally elongated shape, so it tends to move more easily in the front-rear direction than in the up-down direction, even in relation to wind pressure.

Therefore, it is necessary to provide greater resistance to the mirror's back and forth movement than to its up and down movement.

In other words, when the car is running, the resistance must be large enough to maintain the proper position of the mirror even under the influence of wind pressure. There's no need to.

The device of the present invention is capable of satisfying such requirements, and as mentioned above, the spherical upward movement of the mirror, which allows the mirror to move up and down and back and forth, has a spherical bearing 16.16' and a mounting cap 17.17. ', and the bottom of the tank is made to cover the spherical body 14 attached to the shaft, and furthermore, the outer surface of the spherical bearing rises during longitudinal movement, while the inner surface rises during vertical movement. Therefore, it has become possible to satisfy the above requirements by appropriately selecting the difference in sliding resistance between the inner and outer surfaces, or in other words, the difference in contact area or surface resistance resulting from the size of the spherical surface. be.

That is, assuming that the elastic force of the coil spring 29 is constant,
For example, by changing the thickness of the spherical bearings 16, 16' and relatively changing the contact area with the spherical body 14, it is possible to easily change the torque difference between the longitudinal and vertical movements of the mirror.

Furthermore, as mentioned above, the mirror is horizontally long, so even if you want to move it by itself without considering wind pressure, etc., it is possible to move it forward and backward with less force than up and down. Even in the case of vertical movement, the feel is different between vertical movement and back-and-forth movement.

In order to move this with the same feel, it is necessary to provide the same torque difference as described above, and the present invention can also satisfy this type of requirement.

As detailed above, the device of the present invention is mounted in the mounting camps 1γ, 17' disposed within the bifurcated bracket 25, 28, the spherical bearings 16° 16', and enclosed by these members. Since it is made up of a fixed spherical body 14, etc., it has higher rigidity and better stability than conventional flat mirrors, and does not lose its position especially in response to wind pressure, vibration, etc.

Not only that, but it also has an excellent effect in that it makes it possible to separately and arbitrarily set the torque for the mirror's longitudinal and vertical movements, allowing the mirror to move in both directions with the same feel. However, it is extremely advantageous in practice.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a conventional manual door mirror, Fig. 2 is a plan view showing the external appearance of the manual door mirror of the present invention, and Fig. 3 is a longitudinal section of a portion of the same. The front views shown in Figures 4 to 6 are from N-I in Figure 3.
Cross-sectional views along the V line, ■-V line, and VI-VI line, FIG. 7 is a longitudinal sectional front view showing a part of the device exploded, FIG. 8 is a side view of the same, and FIG. 9 is a mirror view. A side view showing the support bracket attached to the pair of upper and lower mounting caps attached to the board side and the spring camp, and Fig. 10 is a plan view showing the state where the spring camp is fitted to the lower support bracket of the Mira body. 11A and 11B are plan views showing the surface of the board that is applied to the vehicle body. 11; Mounting board, 12; Mira body, 13; Shaft, 14
: Spherical body, 15; Locking protrusion, 16.16'; Spherical bearing,
17.1γ'; Cap with upper and lower squares, 18; Through hole, 19
; Notch, 20.35; Long groove, 21.22; Through hole, 23
Dynamic bolt, 24, 26; Projection, 25; Upper bracket h, 27; Spring camp, 28; Lower bracket, 29; Coil spring, 30; Spring holder, 31; Male thread, 32; Tapping screw, 33; Notch, 34; recess, 36; rubber cover 3γ; screw hole.

Claims (1)

[Scope of Claims] 1. A shaft 13 is made to protrude from the substrate 11, and a spherical body 14 is formed near the tip of the shaft, and this spherical body has an oval shape orthogonal to the axis of the shaft. A pair of upper and lower spherical bearings 16 and 16' having hemispherical concave surfaces on the surface of the spherical body, and mounting caps 1γ and 11' also having a pair of upper and lower hemispherical concave surfaces are provided. Cover,
If the mounting cap falls down or one of the mounting caps is
2, the coil spring 29 is pressed into contact with the other mounting cap, and this spring is supported by the other bracket connected to the mirror, and each of the brackets and the mounting cap,
All spherical bearings and spherical bodies are connected to the same circumferential bolt 23.
A manual door mirror characterized by being tightened in one piece. 2 Attach the spring cap 21 fitted with a coil spring to one of the pair of upper and lower mounting caps, and arrange the spring holder 30 that supports the spring 29 on the opening surface of the cap 2γ, and attach the holder with the tapping screw 32. Mirror 12 through bracket 2
8. The door mirror according to claim 1, which is screwed onto the door mirror. 3. A pair of upper and lower mounting caps in which the shaft 13 and the protrusion 15 provided at the tip of a spherical body located on an extension of the shaft penetrate through the spherical bearing, and are attached to the outside of the spherical bearing. 11, 11', long grooves 20, 35 into which the shaft 13 and the protrusion 15 fit, respectively, are formed with a length I extending approximately half the circumference of the cap. door mirror. 4 A plurality of recesses 34 are formed on the lower surface of the mounting cap 1r located on the lower side, and a plurality of notches are protruded from the upper surface of the spring camp 2γ that presses against the cap in correspondence with the recesses. The second claim consisting of
Manual type % type % described in section