JPH0459182B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to so-called outer mirrors such as outer mirrors and door mirrors for automobiles, and in particular, to a mirror back support plate that supports a mirror body from the back side, and a rear mirror support plate that supports a mirror body from the back side. The present invention relates to an improvement in a connection structure with a fixed mirror support member.

Prior Art As is well known, in this type of automobile outer mirror, the mirror back support plate and the mirror body are rotatably attached to the mirror support member in order to adjust the mirror angle in the vertical and horizontal directions. need to be done.

FIG. 5 shows a typical connection structure. In this connection structure, the connection portion 2a of the mirror back support plate 2 is rotatably connected to the connection of the mirror support member 5 by screwing. This structure will be explained in detail below.

In the figure, 2 is a mirror back support plate for supporting the mirror main body 1 from its back side, and 5 is a mirror support member fixed in a mirror case (not shown). The mirror back support member has a hemispherical protruding connecting portion 2a approximately in the center thereof. On the other hand, the mirror support member 5 includes a hemispherical recess 5a into which the protruding connecting portion 2a is fitted.
A dish-shaped clip member 6 is interposed on the inner surface of the hemispherical protruding connection portion 2a of the mirror back support plate 2, and a set screw 4 is inserted inside the hemispherical protrusion connection portion 2a of the mirror back support plate 2. Mirror support member 5
It is screwed into the central protrusion 5b of. and,
A mirror back support plate 2 is attached to the outer periphery of this set screw 4.
A coil spring 3 is fitted in the hemispherical protruding connecting portion 2a, and the coil spring 3 is compressed between the head 4a of the set screw 4 and the pinching member 6. Therefore, the connecting portion 2a of the mirror back support plate 2 is sandwiched between the outer peripheral surface of the sandwich member 6 and the hemispherical recess 5a of the mirror support member 5. Moreover, the presence of the coil spring 3 allows the clamping to be performed elastically. Therefore, when the mirror back support plate is tilted in a desired direction together with the mirror main body 1 manually or by an electric device, the hemispherical protruding connecting portion 2a of the mirror back support plate 2 is moved relative to the hemispherical recess of the mirror support member 5. It will slide smoothly.

Problems to be Solved by the Invention However, with the structure described above, when attaching the mirror back support plate 2 that supports the mirror body 1 to the mirror support member 5, the attachment work is complicated because the setscrews 4 are screwed in. There was a problem.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide an automobile having a structure having a spring means as in the conventional example, and in which a mirror rear support plate can be easily attached to a mirror support member. Our objective is to provide outer mirrors for

Means for Solving the Problems In order to achieve the above object, the present invention uses a specially constructed connecting member in place of the set screw in the conventional example. In other words, a protruding connecting portion at approximately the center of a mirror back support plate that supports the mirror body from the rear side is rotatably connected to a connecting portion of a mirror supporting member fixed within the mirror case via a connecting means. In the outer mirror for an automobile, the mirror back support plate is composed of a protruding connecting part having a hemispherical outer circumferential surface and a hemispherical inner circumferential surface, and the protruding connecting part has a through hole in its center,
The connecting portion of the mirror supporting member protrudes from the main body of the mirror supporting member, and has a hemispherical inner circumferential surface inscribed with the hemispherical outer circumferential surface of the protruding connecting portion of the mirror back supporting plate on the surface facing the mirror back supporting plate. have,
The inner circumferential surface has a through hole in the center thereof that communicates with the through hole of the protruding connecting portion of the mirror back support plate and passes through the mirror supporting member, and the connecting means includes a pinching member, a connecting member, and a spring means. The sandwiching member has a hemispherical outer peripheral surface that is slidably inscribed in the hemispherical inner peripheral surface of the mirror back support plate, and passes through the through hole of the protruding connection part of the mirror back support plate to The connecting member has a bottom portion that contacts the inner circumferential surface of the mirror support member in a non-rotatable manner, and has a through hole in the bottom portion that communicates with the through hole of the mirror support member. A connecting rod that passes through the through hole of the mirror support member, and a connecting rod that projects in the radial direction from one end of the connecting rod, that can pass through each of the through holes relative to the shape of each of the through holes, and that rotates about the axis. The spring means has a projection having a shape that is irremovably locked to the periphery of the through hole of the mirror support member by changing the phase, and the spring means connects the pinch member and the other end of the connecting rod. The sandwiching member is pressed against the mirror support member while the protrusion of the connection rod is pressed around the through hole of the mirror support member, and the connection member connects the protruding connection portion of the mirror back support plate with the mirror support. The connecting portion of the member is connected to the connecting portion of the mirror rear support plate so that the protruding connecting portion of the mirror back support plate is rotatably sandwiched between the inner circumferential surface of the connecting portion of the mirror supporting member and the hemispherical outer circumferential surface of the sandwiching member. Configured.

Effects of the Invention In the outer mirror configured as described above, when the mirror back support plate is tilted in the vertical direction or left and right direction together with the mirror main body, the protruding connecting portion of the mirror back supporting plate engages with the hemispherical inner circumferential surface of the connecting portion of the mirror supporting member. It moves between itself and the hemispherical outer circumferential surface of the pinching member. That is, the connecting member and the pinching member are stationary at a fixed position relative to the mirror supporting member, and the protruding connecting portion of the mirror rear support plate is elastically held by the spring means.

Effects of the Invention According to the above structure, the protruding connecting portion of the mirror back support plate is overlapped with the connecting portion of the mirror supporting member fixed to the mirror case, the bottom of the pinching member is passed through the through hole of the mirror back supporting plate, and the pinching portion is overlapped with the connecting portion of the mirror supporting member fixed to the mirror case. After inserting the member into the protruding connecting part of the mirror rear support plate and passing the connecting member equipped with the spring means through the through hole of the sandwiching member and the through hole of the mirror supporting member, the connecting member is rotated around its axis. When the protrusion and the through hole are made to have different phases, the protrusion of the connecting rod of the connecting member is locked around the through hole of the mirror support member by the spring force of the spring means, while the mirror body is fitted to the mirror back support plate. In this case, the mirror body can be easily and securely attached to the mirror support member of the mirror case using the spring force of the spring means, and the phase between the protrusion and the through hole can be adjusted by rotating the connecting member by a predetermined angle around its axis. By matching these parts, these parts can be easily disassembled.

Therefore, with the above configuration, the intended technical problem can be achieved.

Embodiment An embodiment of the present invention illustrated in FIGS. 1 to 4 will be described in detail below. In this embodiment, the mirror back support plate 12 is connected to the mirror body 11 by an electric device.
It also shows a door mirror that can be tilted vertically and horizontally.

In the figure, 20 is a stay fixed to a door (not shown), and 17 is a mirror case fixed or rotatably attached to the stay 20. A mirror drive unit case 15, ie, a mirror support member, housing a drive unit for tilting the mirror main body 11 and the mirror back support plate 12 in the vertical and horizontal directions is fixed in the mirror case 17. The mirror back support plate 12 is provided with a protruding connecting portion 12a protruding approximately at the center thereof. Therefore, the mirror drive unit case 15
The protruding connecting portion 12a of the mirror back support plate 12 is connected to the connecting portion 15a on the front surface of the mirror so as to be rotatable in the vertical and horizontal directions. This protruding connection portion 12a
has a through hole 12d at its center, and its outer circumferential surface 12c and inner circumferential surface 12b are each formed into a hemispherical shape. The mirror main body 11 is supported from its back side by the mirror back support plate 12 as in the conventional example.

On the other hand, the mirror drive unit case 15 is made of synthetic resin, and a main body part 15c housing the mirror drive unit and a connecting part 15a protruding from the front surface of the main body part 15c are integrally constructed. The connecting portion 15a projects forward from the main body portion 15c of the mirror drive unit case 15, and has a hemispherical inner circumferential surface 15e inside thereof. Further, a circular recess 15d into which the bottom 16e of the sandwiching member 16 is fitted is provided at the bottom of the hemispherical inner circumferential surface 15e.
2 and 3, a through hole 15f having a generally rectangular cross section and penetrating the mirror drive unit case 15 is formed in the center of the recess 15d. As shown in FIGS. 3 and 4, a protrusion 15g is formed on the rear surface of the mirror drive unit case 15 opposite to the connection part 15a, and the protrusion 15g is connected to the through hole 15f. A pair of notches 15h, 15h, and recesses 15i are formed at positions that are 90 degrees out of phase with respect to the axis of the through hole 15f. Both side walls of each recess 15i are formed into inclined surfaces 15j to facilitate fitting, locking, and unlocking of a second flange portion 14c of a connecting member 14, which will be described later.

Furthermore, the connecting portion 15a of the mirror drive unit case 15 and the protruding connecting portion 12 of the mirror back support plate 12 are connected to each other.
A is connected to the connecting means 14, 16, and 21. This connecting means includes a protruding connecting portion 12a of the mirror back support plate 12 and a connecting portion 1 of the mirror supporting member 15.
a connecting member 14 that is directly connected to the connecting portion 5a; a pinching member 16 that is housed within the protruding connecting portion 12a;
It consists of a spring means, specifically a coil spring 21, housed within the sandwich member 16.

The clamping member 16 has a hemispherical portion 16c integrally formed on the outer surface of one end of a cylindrical body 16b, and the outer circumferential surface 16a of the hemispherical portion 16c is formed into a substantially hemispherical shape. This outer peripheral surface 16a is
While slidably contacting the hemispherical inner circumferential surface 12b of the protruding connection portion 12a of the mirror back support plate 12,
The bottom part 16e is attached to the mirror drive unit case 15.
It fits into the recess 15d of the inner circumferential surface 15e of the connecting portion 15a to prevent the sandwiching member 16 from swinging along the inner circumferential surface 15e.

The connecting member 14 has a connecting rod 14b whose diameter gradually decreases from a cylindrical portion at one end toward the other end, and whose other end has a rectangular cross section in the direction perpendicular to the axis.
, a first flange portion 14a connected to a cylindrical portion at one end and projecting in the radial direction, and a second flange portion 14c as a protrusion connected to a rectangular cross-section portion at the other end and projecting in the radial direction. ing.
As shown in FIG. 2, the first flange portion 14a can move in and out of the cylindrical body 16b of the pinching member 16, and most of the connecting rod 14b is housed within the cylindrical body 16b of the pinching member 16. The rectangular section of the connecting rod 14b protrudes from the pinch member 16 and passes through the through hole 16d of the bottom portion 16e of the pinch member 16 and the through hole 15f of the mirror drive unit case 15, respectively. The second flange portion 14c passes through the through holes 16d and 15f, respectively, and then passes through the notches 15h and 15h of the protruding portion 15g. Then, the connecting rod 14b is rotated 90 degrees around the axis, and the second flange portion 14c is connected to the pair of concave portions 15i, 15i.
The connecting member 14 integrally connects the sandwiching member 16, the mirror rear support plate 12, and the mirror drive unit case 15, and
The protruding connecting portion 12a of the mirror back support plate 12 is slidably sandwiched between the outer peripheral surface 16a of the pinching member 16 and the inner peripheral surface 15e of the connecting portion 15a of the mirror drive unit case 15.

The coil spring 21 is housed in the cylindrical body 16b of the sandwiching member 16, and is fitted into the outer periphery of the connecting rod 14b of the connecting member 14, with one end thereof being connected to the first
The other end of the flange portion 14a is pressed against the bottom surface of the cylindrical body 16b of the sandwiching member 16. Therefore, the second flange portion 14c of the connecting member 14
is the protrusion 15g of the mirror drive unit case 15.
When the mirror drive unit case 15 is locked in the recesses 15i, 15i, the coil spring 21 presses the sandwich member 16 against the mirror drive unit case 15 via the protruding connection part 12a of the mirror back support plate 12. 15 connecting parts 15
The sandwiching member 16 and the protruding connecting portion 12a of the mirror back support plate 12 are fitted into the space a. That is, the hemispherical outer circumferential surface 16a of the sandwiching member 16 is the hemispherical inner circumferential surface 12b of the protruding connection portion 12a of the mirror back support plate 12.
It is pressed tightly against the body.

The mirror drive unit case 15 is provided with a pair of flanges 15b on its side surfaces, and each flange 15b is fixed to a support leg 17a formed in the mirror case 17 via each set screw 19. In addition, in the figure, reference numeral 18 indicates a mirror back support plate 1 that protrudes from the inside of the mirror drive unit case 15.
2 is a mirror push/pull shaft for tilting the mirror body 11 in the left-right direction together with the mirror body 11, and its spherical end 18
a is rotatably connected to a bearing portion 12e formed at a predetermined position of the mirror back support plate 12.

When assembling the mirror according to the configuration of the above embodiment, first, the protruding connecting part 12a of the mirror back support plate 12 is inserted into the connecting part 15a of the mirror drive unit case 15 fixed in advance in the mirror case 17, and the above-mentioned The sandwiching member 16 is inserted into the protruding connection part 12a of the mirror back support plate 12, and passed through the through hole 12d of the protrusion connection part 12a of the mirror back support plate 12, and the bottom part 16e is inserted into the inner peripheral surface of the connection part 15a. It fits into the recess 15d of 15e. Next, the first flange portion 14 of the connecting member 14
Fit the coil spring 21 into the connecting rod 14b from c. Next, the first flange portion 14c of the connecting member 14 is inserted into the cylindrical body 16b of the sandwiching member 16, passing through the through hole 16d of the bottom portion 16e, and the mirror back support plate 12 is inserted while resisting the biasing force of the coil spring 21. The protrusion 15 is inserted through the through hole 12d and the through hole 15f of the mirror drive unit case 15.
After passing through the notches 15h, 15h, the connecting member 14 is rotated 90 degrees around its axis, and the connecting member 1
4, the first flange portion 14c of the connecting member 14 is fitted and locked into the recesses 15i, 15i of the protruding portion 15g by the biasing force of the coil spring 21. Then, the mirror main body 11 is fitted to the mirror back support plate 12.

In the mirror assembled in this way, when the mirror back support plate 12 is rotated together with the mirror main body 11, the protruding connecting portion 12a of the mirror back support plate 12 is connected to the hemispherical outer peripheral surface 16a of the sandwiching member 16.
and the inner circumferential surface 15e of the connecting portion 15a, and is elastically pressed and rotated smoothly by these. At this time, the connecting member 14 and the sandwiching member 16 do not move. In other words, the bottom portion 16e of the sandwiching member 16 is fitted into the recess 15d of the inner peripheral surface 15e of the connecting portion 15a of the mirror drive unit case 15 to prevent the sandwiching member 16 from swinging relative to the mirror drive unit case 15. The protruding connecting portion 12a of the mirror back support plate 12 is configured to freely slide between the sandwiching member 16 and the mirror drive unit case 15.

According to the above configuration, after the protruding connecting part 12a of the mirror back support plate 12 is overlapped with the connecting part 15a of the mirror drive unit case 15 fixed to the mirror case 17, and the sandwiching member 16 is overlapped with the protruding connecting part 12a, , the connecting member 14 fitted with the coil spring 21 is connected to these members 16, 12, 1.
5, rotate it 90 degrees around its axis and lock it to the mirror support member 15, and then fit the mirror body 11 to the mirror back support plate 12 easily and easily using the spring force of the coil spring 21. While the mirror body 11 can be reliably attached to the mirror case 17, the connecting member 14 cannot be rotated around its axis.
These parts can be easily removed by rotating them 90 degrees.

Note that the second flange portion 14 of the connecting member 14
The shape of c may be any shape such as a cross.

[Brief explanation of the drawing]

1 to 4 show a mirror according to an embodiment of the present invention, and FIG. 5 shows a conventional mirror. That is, FIG. 1 is a horizontal cross-sectional view of a door mirror according to an embodiment of the present invention, FIG. 2 is an enlarged horizontal cross-sectional view of the main part showing the connection structure between the mirror back support plate and the mirror support member, and FIG. FIG. 4 is an enlarged rear view of the protrusion of the mirror drive unit case, FIG. 4 is an enlarged side view of the protrusion, and FIG. 5 is a horizontal sectional view of a conventional mirror. DESCRIPTION OF SYMBOLS 11...Mirror body, 12...Mirror back support plate, 12a...Protruding connection part, 12b...Inner peripheral surface,
12c...Outer peripheral surface, 12d...Through hole, 12e...
...Bearing part, 14...Connection member, 14a...First flange part, 14b...Connection rod, 14c...Second flange part, 15...Mirror support member (mirror drive unit case), 15a...Connection part , 15b...
...Flange part, 15c...Main body part, 15d...Concave end surface, 15e...Inner peripheral surface, 15f...Through hole, 1
5g...protrusion, 15h...notch, 15i...recess, 15j...slope, 16...pinching member, 16
a...Outer peripheral surface, 16b...Cylindrical body, 16c...Semispherical part, 16d...Through hole, 16e...Bottom, 17
...Mirror case, 17a...Support leg, 18...
Mirror push/pull shaft, 18a...spherical end, 19... set screw, 20... stay, 21... spring means (coil spring).

Claims (1)

[Claims] 1. A protruding connecting portion 12 located approximately at the center of a mirror back support plate 12 that supports the mirror body 11 from its back side.
a to the connecting portion 15a of the mirror support member 15 fixed in the mirror case 17 to the connecting means 14, 16,
21, the mirror back support plate 12 has a hemispherical outer peripheral surface 1.
2c and a protruding connecting portion 1 having a hemispherical inner circumferential surface 12b.
2a, the protruding connecting portion 12a has a through hole 12d in its center, and the connecting portion 15a of the mirror supporting member 15 protrudes from the main body portion 15c of the mirror supporting member 15, and also connects to the mirror back support plate. The opposing surface has a hemispherical inner circumferential surface 15e in which the hemispherical outer circumferential surface 12c of the protruding connection portion 12a of the mirror back support plate 12 is inscribed,
The inner circumferential surface 15e has a through hole 15f in the center thereof that communicates with the through hole 12d of the protruding connecting portion 12a of the mirror back support plate 12 and passes through the mirror supporting member 15, while the connecting means 14, 16, 21 teeth,
It consists of a pinching member 16, a connecting member 14, and a spring means 21.
The mirror back support plate 12 has a hemispherical outer peripheral surface 16a slidably inscribed in the hemispherical inner peripheral surface 12b of
The through hole 15 of the mirror support member 15 has a bottom portion 16e that penetrates through the through hole 12d of the protruding connecting portion 12a and abuts against the inner circumferential surface 15e of the mirror support member 15 in a non-rotatable manner.
The connecting member 14 has a through hole 16d that communicates with the through hole 16d of the sandwiching member 16.
6d and a connecting rod 14b passing through the through hole 15f of the mirror support member 15, and a connecting rod 14b projecting in the radial direction from one end of the connecting rod 14b and each of the through holes 16d, 15f.
The through holes 1 of the mirror support member 15 can be made to pass through the through holes 16d and 15f with respect to the shape of the mirror support member 15 by rotating around the axis and changing the phase thereof.
The spring means 21 is compressed between the sandwich member 16 and the other end of the connecting rod 14; Sandwich member 16
is pressed against the mirror support member 15, while pressing the protrusion 14c of the connection rod 14b onto the mirror support member 15.
The connecting member 14 connects the protruding connecting part 12a of the mirror back support plate 12 and the connecting part 15a of the mirror supporting member 15, and the protruding connecting part 12a of the mirror back supporting plate 12 supports the mirror. An outer mirror for an automobile, characterized in that it is rotatably held between an inner circumferential surface 15d of a connecting portion 15a of a member 15 and a hemispherical outer circumferential surface 16a of a sandwiching member 16.