JPH03735Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Purpose of the Invention" The present invention relates to an in-vehicle antenna mounting base mechanism, which fixes the mounting part of the in-vehicle antenna in a stable and tight sealing state to the outer surface of the vehicle body, and provides a good-looking mounting state. The purpose is to provide a base mechanism that can stably form a base structure.

Industrial field of use Base mechanism for attaching in-vehicle antennas to the pillars of automobiles, etc.

PRIOR ART Various methods have been used in the past to use a base body made of an elastic material such as rubber in order to attach an in-vehicle antenna to a car body wall, especially a pillar part. An example of this is Japanese Utility Model Application Publication No. 59-134910.

That is, a waterproof flexible member interposed between the antenna holding part and the car body wall is formed in the shape of a pedestal, and the circumferential side of the screw hole portion of the flexible member for mounting to the car body and the antenna holding part fitting hole are formed. protrusions are formed on the circumferential side of each.

Problems to be Solved by the Invention In the conventional device as described above, a seal is formed between the vehicle body wall and the protrusion on the circumferential side of the screw hole and the antenna holding portion as described above. However, such a mere protrusion cannot necessarily form an effective seal against the curved wall surface of the vehicle body pillar. In addition, in the case where such a sealing protrusion is made larger and formed so that an appropriate sealing relationship is formed even under the above-mentioned curved and uneven conditions of the vehicle body pillar part, it is necessary to screw it to the vehicle body wall. As a result, the sealing protrusion is severely deformed, particularly at the tightening portion, and partially bulges out, resulting in an unsightly mounting condition.

"Structure of the invention" Means for solving the problem A pad body formed of a waterproof elastic material is interposed between the mounting base body on which the antenna element is attached and the vehicle body wall, and the pad body formed from the above-mentioned mounting base body is In the pad body, a concave groove for absorbing compressive deformation is formed on both sides of the insertion portion of the mounting screw in the pad body, and the mounting screw is inserted into the pad body. A vehicle-mounted antenna mounting base mechanism, characterized in that a joint ring seat is formed surrounding a screw insertion portion, and a lip-shaped projecting wall is provided around the outer circumferential side of the pad body.

Function: On the circumferential side of the tightened part by the mounting screw, the joint ring seat and the lip-shaped projecting wall provide a double seal to the car body wall, and the cable pull-out part is set airtight, and the pad part A suction cup-like effect is achieved on the bottom of the body, resulting in a stable setting.

The elastic repulsion force caused by the compressive deformation of the joint ring seat, which is compressed and deformed by being pressed against the vehicle body wall by tightening with the mounting screw, is absorbed in the groove, thereby preventing it from affecting the lip-shaped protruding wall. Therefore, the lip-shaped projecting wall is always pressed against the vehicle body wall in an appropriate state and performs a sealing action as designed.

This lip-like protruding wall does not partially bulge outward.

Embodiment A specific embodiment of the present invention as described above is explained as shown in the attached drawings.As shown in FIG. At this time, a pad body 1 formed of a waterproof elastic member such as rubber is interposed, and the pad body 1 is fastened and fixed to the vehicle body wall 10 by the mounting screw 9 screwed in from the above-mentioned mounting base body 2. Although the structure itself is similar to the conventional one described above, in the present invention, a joint ring seat 8 is formed on the circumferential side of the insertion portion 4 of the mounting screw 9 in the pad body 1, and the pad body A lip-shaped protruding wall 7 is provided around the circumferential side of the cylindrical part 1, and therefore, the connecting ring seat 8 and the lip-shaped protruding wall 7 are formed to surround the insertion portion 4 in a double manner. A concave groove 6 for absorbing compressive deformation is provided between the ring seat 8 and the lip-shaped protruding wall 7.
It is formed as shown in Figure 2.

That is, when the mounting screw 9 is tightened to the vehicle body wall 10, a joint sealing relationship is formed between the joint ring seat 8 and the lip-shaped projecting wall 7, which also allows the cable lead-out section to be installed airtight. The bottom of the pad provides a suction cup effect. In addition, even if the mounting screw 9 is strongly tightened and the joint ring seat 8 is greatly compressed and deformed, the recessed groove 6 appropriately absorbs and blocks the residual stress due to the compressive deformation from affecting the lip-shaped projecting wall 7 portion. This effectively prevents the tip of the lip-shaped protruding wall 7 from receiving any force that would cause it to warp from the vehicle body surface due to such residual stress, and in this way, the tip of the lip-shaped protruding wall 7 Since the lip-like protruding wall 7 can be pressed against the vehicle body wall 10 in a normal state at all times, the lip-shaped protruding wall 7 can effectively and precisely provide a pressure-welding sealing relationship. Also, such a lip-shaped projecting wall 7
Since the parts are not partially bulged outward, it is possible to form a good-looking attached state.

``Effect of the invention'' According to the invention as explained above, it is possible to always form an effective and stable pressure-sealing relationship with the car body wall surface. It has the effect of forming a good-looking mounting relationship without bulging outward, and is a highly effective device in practical terms.

[Brief explanation of drawings]

The drawings show the technical content of the present invention; Fig. 1 is a bottom view of the pad body of the invention, Fig. 2 is a sectional view of the tightened part by the mounting screw, and Fig. 3 is a diagram showing the installation of the antenna. FIG. 3 is a side view of the base member being applied to the vehicle body wall; In these drawings, 1 is a pad body, 2 is a mounting base body, 4 is an insertion portion, 6 is a groove, 7 is a lip-shaped projecting wall, 8 is a joint ring seat, 9 is a mounting screw, and 10 is a vehicle body. It shows the wall.

Claims (1)

[Scope of utility model registration request] A pad body formed of a waterproof elastic material is interposed between the mounting base body on which the antenna element is attached and the vehicle body wall, and is fastened to the vehicle body by a mounting screw inserted from the mounting base body. In the pad body, grooves for absorbing compressive deformation are formed on both sides of the insertion portion of the mounting screw, and furthermore, a groove is formed to surround the insertion portion of the mounting screw to form a joint ring seat. An in-vehicle antenna mounting base mechanism, characterized in that a lip-shaped projecting wall is provided around the outer circumferential side of the pad body.