JPH0339311Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a door mirror for a vehicle.
In particular, it is characterized by the shaft mounting structure.

[Prior Art] As shown in FIG. 4, a conventional turnover type door mirror includes an arm 56 extending from the lower part of a base 55 for attaching the mirror body 53 to the vehicle body, and an arm 56 extending from the bottom of a base 55 for attaching the mirror body 53 to the vehicle body. The base part 62 of the shaft 61 is installed on the upper surface of the arm 56, and the arm 5
6. Pass several screws 69 vertically through the screw mounting portion 57 formed on the lower surface of the shaft 61, and attach the base portion 62 of the shaft 61.
was fixed to the arm 56.

[Problems to be Solved by the Invention] However, in such a conventional mounting structure, several screws 69 are attached to the arm 56 that extends horizontally from the bottom of the base to connect the shaft base 62 to the arm 56 extending horizontally from the bottom of the base. Since the shaft is threaded, tightened, and fixed, the screws that secure the shaft easily loosen due to vertical vibrations while the vehicle is running.

Therefore, the object of the present invention is to solve the above problems and provide a door mirror shaft mounting structure that can prevent the screws fixing the shaft from loosening due to vertical vibrations during driving.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a door mirror in which a shaft is erected on an arm extending horizontally from the lower part of the base and a mirror body is rotatably mounted. An opening into which the base of the shaft is fitted is provided on the upper surface, a protrusion or a recess is formed in a part of the peripheral wall of the opening, and the recess or protrusion formed in the base of the shaft is connected to the arm side. The base of the shaft is fitted into the convex or concave portion of the arm, and the base of the shaft is horizontally tightened to the arm using screws.

[Function] The door mirror shaft mounting structure of the present invention has an opening in the upper surface of the arm extending horizontally from the lower part of the base, a convex part or a concave part in a part of the peripheral wall of this opening, and Form a concave or convex part on the shaft side that fits with the convex or concave part, install the shaft base in the opening on the upper surface of the arm so that these will fit, and then tighten the shaft with a screw from the horizontal direction. The base part of the arm is tightened and fixed in the opening of the arm. By screwing in the horizontal direction in this way, the screws are less likely to loosen even if the vehicle is subjected to vertical vibrations while the vehicle is running, and the fixing of the shaft can be prevented from loosening due to vertical vibrations while the vehicle is running.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a shaft mounting structure for a door mirror according to the present invention, and FIG. 2 is an exploded perspective view of the main part thereof.

A mirror body 3 holding a mirror 4 is attached to a base 5 attached to the vehicle body 1 with screws 2 so as to be rotatable in the longitudinal direction of the vehicle. A shaft 11, which is the center of rotation of the mirror body 3, is formed separately from the base 5, and has an opening 10 provided in an arm 6 extending approximately horizontally from the bottom of the base 5.
will be installed in

A plate 22 is attached to a recess formed at the tip of the shaft 11 fixed to the arm 6, and a bearing cylinder 21 is installed around the outer periphery of the shaft 11. This bearing cylinder 21 is formed integrally with a frame 20, and the frame 20 is fixed to the mirror body 3 side. Further, a coil spring 25 is installed on the outer periphery of the bearing tube 21 between the frame 20 and the plate 22 at the base of the bearing tube 21, with its upper and lower ends pressed and compressed. The shaft 11 and frame 20 are pressed by the elasticity of the coil spring 25, and the position of the mirror body 3 is fixed so that it does not easily move during use. Further, when the mirror body 3 rotates, the frame 20 attached to the mirror body 3 rotates against the coil spring 25 along with the rotation of the mirror body 3, and the frame 20 is integrated with the frame 20 due to the rotation of the frame 20. The bearing tube 21 formed in
The shaft 11 also rotates and slides on the outer periphery of the shaft 11.

Next, the configuration of the shaft that is the center of rotation and the arm that fixes the shaft will be explained in more detail.

As shown in FIG. 2, the arm 6 is provided with an opening 10 on its upper surface, a protrusion 7 formed on both side walls of the tip, and a screw hole 9 into which a screw is inserted horizontally into the wall 8 at the base of the arm 6. has been established. On the other hand, an outer flange 14 is provided vertically at the tip of the base portion 12 of the shaft 11, and a recess 13 is formed on both sides of the outer flange 14 to fit with the convex portion 7 at the tip of the arm 6.
Further, an inner flange 15 is provided at the end of the platform 12 on the side of the vehicle body 1.
is provided vertically, and a screw hole 16 is provided in the inner flange 15 at a position overlapping with the screw hole 9 to be inserted horizontally.

When attaching the shaft 11 to the arm 6 extending substantially horizontally from the base 5, the base portion 1 of the shaft 11 is inserted into the opening 10 formed on the upper surface of the arm 6.
Insert the inner flange 15 of the arm 6, and while pressing the base 12 of the shaft 11 against the edge of the opening 10, slide it horizontally toward the vehicle body, and then insert the inner flange 15 of the arm 6 into the
and the recess 13 of the outer flange 14 of the base 12 are fitted, and the base 12 is fitted into the opening 10 of the arm 6,
Screws 19 are horizontally inserted into the screw holes 9 and 16 from inside the base 5, the inner flange 15 is drawn to the wall 8 at the base of the arm 6, and the shaft 11 is fixed to the arm 6.

In this way, by fixing screws in the horizontal direction, durability against vertical vibrations is improved, the screws are prevented from loosening due to vertical vibrations during running, and the shaft can be more securely fixed.

Further, FIG. 3 shows another embodiment. An opening 40 is provided on the upper surface of the arm 36, and a step 37 consisting of a convex portion and a concave portion is formed on the edge on the vehicle body side.
The stepped wall 38 at the tip of the arm 36 has a screw hole 39 for screwing in the horizontal direction. On the other hand, the arm 3 is attached to the end of the platform 42 of the shaft 41 on the vehicle body side.
Step 4 consisting of a concave portion and a convex portion that fit into the convex portion and concave portion of the step 37 formed at the edge of the opening 40 of No.6.
3 is formed. An outer flange 45 is vertically provided at the tip of the base portion 41, and the outer flange 45 has screw holes 3.
Screw hole 46 to be screwed in horizontally at the position overlapping with 9
has been established.

When attaching the shaft 41 configured as described above to the arm 36, the step 43 formed on the base portion 42 is hooked onto the step 37 of the arm 36, and the arm 3
The base portion 42 is fitted into the opening 40 of the arm 36 so that the wall 38 at the tip of the arm 6 engages with the outer flange 45,
The shaft 41 can be fixed to the arm 36 by passing screws 49 horizontally through the screw holes 46 and 39 from the tip end of the arm toward the vehicle body and tightening them.

In this way, the convexity or convexity formed in the base of the shaft is fitted into the convexity or concavity formed in a part of the peripheral wall of the opening on the upper surface of the arm, and then the screw is tightened from the horizontal direction. Therefore, loosening of screws due to vertical vibrations while the vehicle is running can be eliminated. Therefore, it is possible to prevent the shaft fixation from loosening due to vertical vibrations while the vehicle is running.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to these embodiments. For example, in the embodiment, a convex portion or a concave portion is formed at the tip of the opening or the edge on the vehicle body side, and a concave portion or a convex portion that fits with the convex portion or concave portion on the arm side is formed on the vehicle side or the tip of the platform. However, a convex portion or a concave portion may be formed on the edge of the side surface of the arm, and a concave portion or a convex portion that fits with the convex portion or concave portion on the arm side may be formed on the side surface of the base portion.

[Effect of the invention] The door mirror shaft mounting structure of the invention has an opening into which the shaft base is fitted on the upper surface of the arm extending from the lower part of the base to the water surface, and a portion of the peripheral wall of the opening is provided with an opening into which the shaft base is fitted. A convex portion or a concave portion is formed, and a concave portion or a convex portion that fits into the convex portion or concave portion is formed on a base portion on the shaft side, and the base portion of the shaft is formed in an opening on the upper surface of the arm so that these portions fit together. By installing it and further tightening and fixing it with screws from the horizontal direction, it is possible to prevent the screws from loosening due to vertical vibrations while the vehicle is running. It is also possible to prevent the fixation of the shaft from loosening.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an example of the door mirror shaft mounting structure of the present invention, FIG. 2 is an exploded perspective view of the same, FIG. 3 is an exploded perspective view showing another embodiment, and FIG.
The figure is a longitudinal sectional view showing a conventional example. 1... Vehicle body, 2, 19, 49... Screw, 3...
Mirror body, 4...Mirror, 5...Base, 6,3
6...Arm, 7...Protrusion, 8...Wall, 9,1
6, 39, 46... Screw hole, 10, 40... Opening, 11, 41... Shaft, 12, 42... Base, 13... Recess, 14, 45... Outer flange,
15... Inner flange, 37, 43... Step, 38...
…Stepped walls.

Claims (1)

[Scope of utility model registration request] In a door mirror in which a mirror body is rotatably attached to an arm extending horizontally from a lower part of the base by standing a shaft, an opening into which a base part of the shaft is fitted is provided on the upper surface of the arm, and a peripheral wall of the opening is provided. In addition to forming a convex part or a concave part in a part of
A shaft mounting structure for a door mirror, characterized in that a concave or convex portion formed on the base of the shaft is fitted into a convex or concave portion on the arm side, and the base of the shaft is horizontally tightened to the arm with a screw. .