JPS5851633Y2 - Mounting structure between stay and mirror housing in back mirror - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a stay and a mirror housing in a rearview mirror, and particularly to a mirror mounting device having a structure suitable for use in a rearview mirror.

Generally, in rearview mirrors, a flexible joint is often used at the attachment site between the stay and the mirror housing so that the reflection angle of the mirror can be set freely.

In other words, in order to rotatably attach the mirror housing to a fixed stay, a sphere is provided at the tip of the stay, and a grip body is provided on the housing side to receive the sphere, so that the sphere and the grip body are connected. The structure is such that the mounting angle can be freely adjusted between the two.

The same applies to the invention of Utility Model Publication No. 50-6107 related to the applicant's earlier application, in which a conical gripping body with a cutout is fixed to the side of the mirror housing, and one A sphere on the stay side is inserted into the gripping body so that it can be gripped from the outside, and the magnitude of the gripping force is adjusted by a nut attached to the edge of the opening of the gripping body. It is a structure.

Although this device has a relatively simple structure and is easy to adjust, it has the following drawbacks, and improvements have been desired.

In other words, in the prior invention, the mechanism for adjusting the tightening force (gripping force) is configured to protrude greatly from the back of the housing, and therefore, it is necessary to operate from the back of the housing to make adjustments, which makes the work difficult. It was difficult to do.

Moreover, because of the above-mentioned structure, the tip of the stay, which is the member to which the housing is attached, had to be placed horizontally, so the entire stay had to be bent into an L shape. .

In other words, the stay is extended vertically, and the structure cannot be applied to cases where a mirror housing is attached to the end of the stay.

By the way, since the rearview mirror is attached to the ceiling of the driver's seat, it would be more natural for the stay to be arranged vertically, and an appropriate mounting structure was desired in this case.

Here, the present invention allows the stay to be installed even when it is arranged vertically, and also allows the tightening force to be easily adjusted from below using a screwdriver instead of from the back. The adjustment mechanism is housed inside so that the whole can be made compact.

To explain the present invention in detail with reference to the illustrated embodiment, as shown in FIG.
A screw hole 4 is formed in the bottom of the frame 3, and the through hole 4 is exposed to the outside of the mirror housing 2.

A truncated cone-shaped grip 5 corresponding to the shape inside the frame is attached to the inside of the receiving frame 3, and a spherical concave surface 6 is formed inside the grip, and a spherical concave surface 6 is formed inside the grip. A plurality of cuts 7 are provided on the side surface of the button.

Further, a female screw portion 8 corresponding to the through hole 4 is carved on the lower surface of the gripping body, and a screw 9 is screwed into this female screw portion through the through hole 4.

A rotation stopper piece 10 is provided on the lower surface of the grip body 5 to prevent the grip body 5 from rotating when the screw 9 is screwed into the grip body 5.
is projected and fitted into a locking portion 10' formed on the receiving frame 5.

Further, a sphere 12 formed at the tip of the stay 11 is attached to the spherical recess in the receiving frame.

Incidentally, as shown in FIG.
The angle ' is made slightly smaller than the angle of the conical surface 5' of the gripping body 5, and when the gripping body 5 is pulled downward by the screw 9, the gripping body 5 is tightened from the outside by the receiving frame. Configure it like this.

Since the present invention has the above configuration, it exhibits the following effects.

In other words, the receiving frame 3 is opened upward on the rear surface of the mirror housing 2, and the spherical body 12 of the stay 11 is received in this frame via the gripper 5. It can be installed using the stay that extends vertically from the base.

In addition, in terms of workability when fitting the housing to the stay and setting it, it is easy to assemble, as it is only necessary to tighten the grip body 5 into which the sphere 12 on the stay side is fitted with the screw 9 below. On the other hand, when adjusting the tightening force of the housing against the stay, it is only necessary to turn the screw 9 from below, so the work is much easier compared to the conventional method where adjustment is done by going around the back of the housing. Easy and accurate adjustment.

In addition, since the tightening force adjustment mechanism is all built into the housing and is not exposed, it is highly dust-proof, and has practical advantages such as being compact and elegantly organized as a whole.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of the mirror mounting part showing the mounting structure of the present invention, Fig. 2 is a partially cutaway front view of the same, and is a sectional view showing the relationship between the receiving frame and the grip body, and Fig. 3 2 is a sectional view taken along the line ■--■ in FIG. 2, FIG. 4 is an enlarged sectional view of a part of the device, and FIG. 5 is a perspective view of the grip. 1...Mirror, 2...Mirror housing, 3...
Receiving frame, 4... Through hole, 5... Gripping body, 6... Spherical recess, 7... Cut, 8... Female threaded part, 9... Screw, 10... Rotation stopper Piece, 11... Stay 12...
·sphere.

Claims (1)

[Scope of utility model registration request] A bowl-shaped receiving frame 3 is formed on the back surface of the mirror housing 2 with the opening facing upward, and a through hole 4 is bored in the bottom of the frame. while the receiving frame 3
A truncated cone-shaped grip 5 having a cut 7 in the generatrix direction is housed therein, and a stay-side sphere 12 extending from above is housed inside this grip, and this grip 5 is attached to the receiving frame 3. A stay in a rearview mirror characterized in that the stay is tightened by an inner surface tapered portion of and a screw 9 screwed into the grip body 5 from below through the through hole 4.
Mounting structure with lar housing.