JPH0123867Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mounting device for an automobile rear endoscope, which can be mounted effectively and effectively using a minimum number of parts through a support section and a pivot attached to the main body of the vehicle. It is configured so that it can be installed and held at a desired angle.

Many types of means for attaching automobile rearview mirrors to key points on the vehicle body have already been devised and put into practical use, but in general, the pivot attachment part cannot be removed. However, in order to create a structure that allows the mirror surface to be easily positioned and to be held so as not to be easily displaced due to vibrations, etc., the structure is complicated, and naturally a large number of assembly parts are required, resulting in an increase in cost. In addition, in order to stably hold the entire rear scope at the attachment point, adjusting the tightness of the attachment point to the pivot requires adjusting the tightening force of multiple attachment screws, which is a hassle. It also has problems, such as requiring a lot of work and being troublesome.

The present invention solves these conventional problems and provides a rear endoscope mounting device that has a simple structure, skillfully utilizes the laws of nature, and possesses a purposeful pivot function with a minimum number of parts. There is a particular thing.

In this invention, the mirror housing of the rear endoscope is made of synthetic resin, and a pivot mounting boss and a wedge-fitting recess are integrally provided adjacent to the pivot mounting boss at a suitable location. A spherical recess into which the pivot head can fit is provided with an opening having a widening tapered peripheral surface, and the half of the boss on the recess side is made flexible by cutting on a straight line passing through the center of the spherical recess. A wedge piece having a curved surface formed on one side to abut and hold the tapered surface of the pivot mounting boss is inserted into the recess, and the outer peripheral surface thereof is a tapered surface. The pivot head is inserted into the spherical recess so that the pushing amount of the wedge piece can be adjusted by a fastening screw that passes through a fastening hole provided in the recess and is screwed into a screw hole provided at the bottom of the recess. It was constructed so that it could be attached movably to the body.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
is made of synthetic resin (for example, polypropylene, ABS resin, etc.), and a mirror 2 is attached to the front of the housing by a well-known method, and a mounting part for the rear endoscope is integrally molded in the lower corner of the housing. be. This mounting portion has a pivot mounting boss 5 into which the spherical head 3' of the pivot 3 to be mounted on the side of the support (not shown) protruding from a key point of the vehicle is fitted, and a recess 10 of a required size adjacent thereto. As shown in FIG. 1, the pivot mounting boss 5 has a spherical recess 6 in the center into which the pivot head 3' can fit, and an opening 7 connected to the recess 6 is tapered with an appropriate inclination angle. The center of the spherical recess 6 is shaped so that it has a circumferential surface, half of the boss portion forms a semicircle with an appropriate thickness relative to the adjacent recess 10, and has an inclined surface 5'' at an appropriate angle. A cut groove 8 is made on a straight line passing through the recess so that the half of the recess is flexible.The recess 10 is slightly wider than the maximum diameter part of the flexible side 5' of the pivot mounting boss 5. The side surface 11 opposite to the boss 5 and both side surfaces 12 in the width direction are approximately vertical surfaces (with a slight slope for convenience of molding). may be added).

As shown in FIGS. 1 and 3, the wedge piece 20 for fitting the pivot 3 into the recess 10 has a surface corresponding to the flexible side 5' of the pivot mounting boss 5. The concave curved surface 21 is curved so as to embrace the circumferential surface of the concave part to the extent possible, and the required taper is attached.The surface 22 opposite to this concave curved surface 21 is a vertical surface, and the width direction is the width of the concave part. A stepped hole 23 for fastening is bored in the central part in the axial direction (the direction in which the wedge piece is inserted) so that the width is within the range of the wedge piece. In the figure, reference numeral 13 indicates a slotted portion of the sliding surface of the wedge piece provided in the recess 10, 15 indicates a fastening machine screw, and 14 indicates a fastening machine screw. 14 is a threaded hole for a small fastening screw,
It is bored at a predetermined location that is part of the housing 1 and corresponds to the bottom of the recess 10.

The rear endoscope mounting device of the present invention constructed as described above can be configured by inserting the head 3' of the pivot 3 into the spherical recess 6 through the opening 7 of the mounting boss 5 without attaching the wedge piece 20. As described above, the half of the mounting boss 5 on the recess 10 side is made flexible by the cut groove 8, so when the head is inserted, the flexible side 5'
moves to easily accept the pivot head 3', after which the wedge piece 20 is inserted into the recess 10 and its concave curved surface 21
Insert the fastening screw 1 into the stepped hole 23 so that the side engages with the tapered peripheral surface of the mounting boss 10.
5 is inserted, its threaded end is screwed into the screw hole 14 at the bottom of the recess, and the fastening machine screw 15 is screwed in as it is, the wedge piece 20 is inserted by the head of the machine screw 15
is pushed in, and the tapered concave curved surface 21 of the wedge piece 20 and the flexible side 5' of the mounting boss 5 are slid together with the outer peripheral inclined surface 5'', so that the flexible side 5' of the mounting boss 5 is aligned with the pivot 3 mounting center. The head 3' of the pivot 3 is pressed against the fixed side recess surface, and the contact friction force between the entire surface of the spherical recess 6 and the circumferential surface of the pivot head 3' is substantially reduced. Moreover, since the wedge piece 20 is inserted and fixed in the recess 10, the flexible side 5' of the mounting boss is held displaced.

Therefore, by adjusting the degree of tightening of the fastening machine screw 15 and adjusting the degree of entry of this wedge piece 20 into the recess 10, the holding force of the mounting boss part against the spherical head, that is, the frictional force can be adjusted. In addition, the housing can be supported reliably.

Note that the engagement relationship between the wedge piece and the flexible side 5' of the mounting boss 5 is semicircular with approximately equal wall thickness (although it becomes thicker toward the base because it has a tapered peripheral surface). The flexible part has a relatively uniform wall thickness), so it is surrounded from the periphery and the wedge action of the wedge piece works to narrow it down to the center of the pivot head, making it almost uniform overall. A contact friction force is obtained, and the viewing angle range of the mirror can be set and maintained reliably. Therefore, if the side of the wedge piece opposite to the concave curved surface is also tapered in addition to the above, the amount of adjustment can be further reduced to obtain an effective engagement state.

As mentioned above, according to the present invention, when the housing is molded, the pivot attachment part is also integrally molded, and by using this and one fastening machine screw for attachment, it is possible to securely and smoothly adjust and hold the housing. Since it can be used as an endoscope mounting device, it is possible to obtain a truly practical rear endoscope mounting device that has a simple structure, is easy to manufacture, can be provided at low cost, and can withstand long-term use without failure.

Note that, in accordance with the spirit of the present invention, the present invention is not limited to the above-mentioned specific example, and may be provided on the back surface of the housing or the like.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of a specific example of the mounting device of the present invention, FIG. 2 is a perspective view of FIG. 1, and FIG. 3 is a perspective view of a wedge piece. 1...Housing, 3...Pivot, 3'...
Pivot head, 5... Pivot installation boss,
5'... Flexible side of the mounting boss, 6... Spherical recess,
7... Opening, 8... Cut groove, 10... Recess, 14... Screw hole, 15... Machine screw for fastening, 2
0... Wedge piece, 21... Concave curved surface, 23... Stepped hole.

Claims (1)

[Scope of utility model registration request] The mirror housing is made of synthetic resin, and is integrally provided with a pivot mounting boss and a wedge-fitting recess adjacent to the pivot mounting boss at the appropriate location.The pivot mounting boss has a tapered peripheral surface that expands outward in the center. A spherical recess into which the pivot head can fit is provided, and the half of the pivot mounting boss on the recess side is made flexible by being cut on a straight line passing through the center of the spherical recess. , and its outer peripheral surface is a tapered surface, and a wedge piece having one side formed with a curved surface that abuts and holds the tapered surface of the pivot mounting boss is fitted into the recess, and a fastener provided on the wedge piece is inserted. A fastening screw that passes through a hole and is screwed into a screw hole provided at the bottom of the recess makes it possible to adjust the amount of pushing of the wedge piece, making it movable relative to the pivot head inserted into the spherical recess. An automobile rear endoscope mounting device, characterized in that it is configured to be mounted on a vehicle.