JPH0438564Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a mounting structure for a window-mounted antenna for a vehicle-mounted radio.

(Prior Art) In recent years, with the rapid spread of portable radios such as personal radios and amateur radios, radios are often used outdoors, and it is especially difficult to use radios inside the cabin of a car. There are more and more.

In this case, the transmitting/receiving antenna needs to be attached to the outside of the vehicle body, and various proposals have been made regarding the attachment structure.

By the way, when the car is parked and the radio is used away from the car, it is necessary to remove the antenna, and when the car is used while the car is running, it is necessary to attach the antenna to the car body. For this reason, various mounting brackets and the like have been proposed that allow the antenna to be easily attached and detached without using any tools, regardless of the manufacturer or model of the vehicle.

However, with conventional removable mounting brackets, the work of attaching and detaching the mounting bracket itself is complicated;
The number of parts was large and the cost was high.

For example, as an example of such a mounting structure,
There is one disclosed in Publication No. 20731. In this mounting structure, a mounting casing made of a metal plate molded into an inverted U shape is fitted onto the upper side of the window glass, and a bulge is provided on the outside of the mounting casing, and the antenna base is attached at an angle here. It is attached in a variable manner. However, this mounting structure does not have a special fixing support structure for fixing the mounting casing to the window glass, and the mounting casing is simply made of a metal plate bent into an inverted U shape. This only realizes locking to the glass. Therefore,
It is clear that there is a limit to the tightening force and that the mounting casing will loosen over time. In order to eliminate this loosening, the elastic force of the metal plate must be strengthened, but this will make it difficult to attach and remove, increase the thickness of the metal plate, increase the weight, and damage the glass due to the metal plate. cause inconvenience.

Adjustment of the mounting angle of the antenna is only achieved by fitting the flat part of the antenna into a recess provided in the bulge, and there is a limit to the number of stages in which the antenna can be fixed. Unless the size of the bulge is significantly increased and the number of recesses is increased, it is impossible to obtain multiple fixed angles.

Furthermore, the number of parts and the shape and structure of each part are complicated and expensive.

Next, Japanese Utility Model Publication No. 40-20733 discloses an inverted U-shaped plate substrate, a pressure receiving plate made of an elastic body laid on the inner surface of one of the side plates of this substrate, and A mounting structure is disclosed that includes a pressing plate made of an elastic body disposed on the inside and a tilting lever for bringing the pressing plate into or out of pressure contact with the glass surface.
In this mounting structure, since the antenna is fixed and the angle cannot be adjusted, the practicality is significantly reduced, and the structure for fixing the antenna to the glass is complicated, resulting in an increase in costs.

Furthermore, the distance that the press plate 7 moves in the thickness direction (movable range) during attachment and detachment is only about a few mm due to its structure. This is because the distance between the side plates 2 and 5 of the board 1 is approximately constant, and there is a limit to the elastic expansion range, but there are a pressure receiving plate 4, a pressing plate 7,
In order to arrange the protrusions 6 provided on the glass 13 and furthermore on the side plate itself, the overall thickness of the substrate 1 has to be increased to some extent. This is a problem because it leads to an increase in the protrusion length of the press plate 7, so the movable range (stroke) in the thickness direction of the press plate 7 has to be set small.

For this reason, it is not easy to attach and detach the glass by sandwiching the glass between the substrate 1 including the pressure receiving plate 4 and the pressing plate 7, and removing the glass is not easy and requires a large amount of force. For this type of window-mounted antenna, which is intended to be attached and detached relatively frequently as necessary, it is important that it is easy to attach and detach, and any defects in attaching and detaching operability will reduce the product value. This results in a significant decrease. In addition, although the thickness of modern car window glass tends to become thinner in order to reduce weight and cost, thicker glass is also sometimes used for safety reasons. are various. Furthermore, the thickness of the glass is not uniform depending on the car model. For this reason, if the movable range of the press plate 7 in the thickness direction (glass insertion space) is limited to a very small range due to the relationship with surrounding members, as in Reference 2, the glass thickness cannot be changed. It is difficult to provide versatility that can be used for various types of glass, and it is necessary to prepare many types of glass in advance depending on the thickness of the glass.

Moreover, as mentioned above, the pressure receiving plate 4 and the pressing plate 7,
In order to arrange the glass 13 on the inside, the overall thickness of the substrate 1 has to be increased to a certain extent, so that the substrate largely protrudes inward and outward directions of the glass, impeding the comfort and driving operability in the vehicle interior.

In addition, as mentioned above, in order to keep the thickness of the substrate 1 small, the stroke of the press plate 7 in the thickness direction has to be made small, but if the stroke of the press plate 7 is made small, the glass plate becomes even slightly thinner. In case,
The clamping force on the glass is significantly reduced, and fixation to the glass is achieved exclusively by the thick receiving plate 4 and the pressing plate 7. For this reason, it becomes necessary to increase the area of the pressing plate of these elastic plates to improve the fixing stability. An increase in the size of the pressing plate and the like leads to an increase in the size of the entire structure including the substrate 1, which results in an increase in the area where the glass is shielded. This results in a narrowing of the driver's field of vision, which is a safety problem.

Furthermore, since the tilting rod 11 protrudes into the vehicle interior, there is a risk that it may be moved by mistake and detached from the glass.

Next, JP-A-59-15307, JP-A-58-
Publication No. 95406 and other documents disclose a configuration in which the antenna holding fitting is provided with an arc-shaped floating long hole for rotating the parabolic antenna. Moreover, this parabolic antenna is not intended for use in a car, especially for hanging on a window, but for radio and wireless communications.

Since the antenna mounting device described in Utility Model Publication No. 39-34373 has a fixed antenna (the angle cannot be adjusted), its practicality is significantly reduced. Furthermore, the antenna mounting plate and antenna are not intended to be attached to window glass, but rather to be fixed to the top of the window frame without having to move up and down as the glass goes up and down. Since different parts are used, the number of parts is large, and the configuration and operation are complicated.

(Purpose of the invention) The present invention was made in view of the above, and it is possible to easily attach and detach the antenna without using special tools, ensure that the fixed state is maintained when attached, and furthermore, the antenna can be attached and detached without using any special tools. The object of the present invention is to provide a screw-locked window antenna mounting bracket that allows the angle of the antenna to be set.

(Structure of the invention) In order to achieve the above object, the present invention provides a mounting bracket for a whip antenna that is attached to a windowpane that is opened and closed by raising and lowering, the mounting bracket has a 7-shaped cross-sectional shape that fits on the upper side of the windowpane that is opened and closed by raising and lowering. a plate-shaped main body, a slit formed in the long tongue-shaped portion of the plate-shaped main body, and a tip portion of the inner surface of the window glass when screwed into a screw hole bored at the top of the slit. and a whip antenna holding metal fitting disposed on the short tongue-shaped portion of the plate-like body, the whip antenna holding metal fitting having a circular shape into which the protrusion at the proximal end of the whip antenna is fitted in a freely movable manner. It is characterized by having an arc-shaped floating long hole.

(Example) Hereinafter, the screw-locked window antenna mounting bracket of the present invention will be described in detail based on the example shown in the accompanying drawings.

Figures 1 and 2 are explanatory diagrams of the configuration and operation of an embodiment of the present invention. It is to be worn.

This mounting bracket 2 consists of a plate-shaped main body 1 with a figure 7 cross-sectional shape that fits on the upper side of a window glass that is opened and closed when raised and lowered.
0, a crotch part 6 formed by bending the middle part of the long tongue-shaped part 4 of the plate-like main body 10 into a U-shape, and screwing into a screw hole 7 bored at the top of the crotch part 6. an attachment/detachment screw 8 which presses onto the inner surface of the window glass with its tip 8a when the screw is pressed, and a short tongue-shaped portion 5 of the plate-like main body 10.
It has an antenna holding fitting 1 disposed at. The plate-like main body 10 has a top side 3 that contacts the top side of the window glass when fitted, a long tongue-shaped portion 4 that extends downwardly from the inner end of the top side 3, and a long tongue-shaped portion 4 that extends downward from the inner end of the top side 3. It has a short tongue-shaped portion 5 that extends downwardly from the outer end.

The screw 8 has a tip portion 8a that is pressed into contact with the glass surface at the tip of the screw portion screwed into the screw hole 7, and has a knob portion 8b at the base end that can be easily tightened and loosened by hand. . In order to prevent damage to the glass, it is natural to attach an elastic body or the like to the tip 8a as usual.

As shown in FIG. 1, the knob 8b is manually removed.
When turned in the tightening direction, the tip 8a comes into pressure contact with the glass surface with a strong force, and together with the elastic force of the long tongue shaped member 4, the plate-shaped main body 10 is firmly fixed to the upper side of the glass.
At this time, in addition to the elasticity of the long tongue-shaped portion 4, the repulsion of the U-shaped crotch portion 6 also acts effectively to increase the fixing force.

As shown in FIG. 2, by turning the screw 8 in the opposite direction, the fixation of the plate-like main body 10 can be easily released manually.

The antenna holding fitting 1 is fixed by a screw 16 to a support piece 15 that is integrally provided on the short tongue-shaped portion 5 located on the outside of the glass.

The antenna holding fitting 1 has an arc-shaped floating elongated hole 9 into which a protrusion 17 at the base end of the antenna is fitted in a freely movable manner.

The antennaro is (the whip antenna is the floating long hole 9
It can be rotated vertically within the range of , and its angle can be fixed using appropriate fixing means. For example, the fitting force between the protrusion 17 and the elongated hole 9 may be set to a predetermined strength to facilitate manual angle adjustment, and at the same time, the configuration may be such that it does not move due to vibrations or the like after adjustment. I can do it. The angle adjustment described above can be performed steplessly, allowing fine adjustment of the angle of the antenna and an accompanying improvement in gain.

Even if the antennae tilts as shown in FIG. 2 due to a decrease in the fitting force between the protrusion 17 and the elongated hole 9 or due to external force, it can be prevented from falling off or falling down.

FIG. 3 shows another embodiment of the present invention, in which the area of the tip 8a of the screw 8 is increased to increase the coefficient of friction (crimping strength). It is preferable that the tip portion 8a is made of an elastic material such as rubber.

Note that the technical scope of the present invention defined based on the claims is limited to rod-shaped whip antennas and does not extend to non-whip antennas including parabolic antennas. In addition, in this invention, the term "whip antenna" is used to broadly include whip-shaped antennas such as rod-shaped, linear, and thin strip-shaped antennas, as shown in the attached drawings, and bowl-shaped and planar antennas are excluded from this concept. be done.

(Effects of the invention) As described above, the present invention allows the mounting bracket itself including the antenna to be easily attached and detached, and
The inclination angle of the antenna can be arbitrarily and easily changed. Moreover, it is possible to prevent the antenna from collapsing or falling.

Moreover, when fixing the figure-7 shaped metal fitting to the glass, the present invention does not rely only on the elastic force of the metal fitting, but obtains the crimping force by the tightening force of the screw that cooperates with the elastic force of the crotch part 6. Because of this, the plate-shaped metal fittings themselves can be made as thin as possible, which is convenient. Further, the operation of pressing the screw 8 onto the glass can be completed with one touch.

Since the number of parts is small, costs can be reduced.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of the configuration and operation of one embodiment of the present invention, and FIG. 3 is an explanatory diagram of another embodiment of the present invention. A...Window glass window, B...Antenna, 1...Antenna holding bracket, 2...Mounting bracket, 3...Top side, 4...Long tongue shaped part, 5...Short tongue shaped part, 6...
...Opening part, 7...Screw hole, 8...Screw for attachment and detachment, 9
...Floating long hole, 10...Plate-shaped body.

Claims (1)

[Scope of Claim for Utility Model Registration] A mounting bracket for a whip antenna that is attached to a window glass that can be opened and closed by raising and lowering, the mounting bracket comprising a plate-like body with a figure-7 cross-sectional shape that fits onto the upper side of the window glass which can be opened and closed by raising and lowering; a split portion formed on the long tongue-shaped portion of the plate-like body; and an attachment/detachment screw whose tip portion presses against the inner surface of the window glass when screwed into a screw hole bored at the top of the split portion. and a whip antenna holding fitting disposed on the short tongue-shaped portion of the plate-like main body, and the whip antenna holding fitting is provided with an arc-shaped floating elongated hole into which the protrusion at the base end of the whip antenna is fitted in a freely movable manner. A screw-lock window antenna mounting bracket.