JPH065205U - Wireless device - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a radio apparatus capable of preventing increase in manufacturing cost and complication of manufacturing process due to the structure of an antenna. [Structure] The element 20A is attached to a base end portion 20Aa of the element 20A of the antenna 20 by a casing 10
Bracket 2 that is fixed to and connected to the wireless unit
OB is formed integrally with the element 20A.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wireless device, and more particularly, to a structure of an antenna in the wireless device.

[0002]

[Prior art]

 A wireless device A shown in FIG. 3 includes a casing B for accommodating and installing a wireless unit (not shown), and a transmitting / receiving antenna C provided in the casing B. As shown in FIGS. 4 and 5, the antenna C includes an element Ca formed by forming a conductor rod into a coil, a bracket (base metal fitting) Cb attached to an end of the element Ca, and the element Ca. And an exterior tube Cc for covering the. Further, the antenna C is mounted on the casing B by fixing the bracket Cb to the mounting boss Ba protruding from the casing B by using the set screw D, and at the same time, is fixed by the set screw D. It is connected to the radio unit (not shown) via a lug terminal E that is fastened together with the bracket Cb.

[0003]

[Problems to be solved by the device]

 By the way, in the above-described conventional wireless device A, since the antenna C is composed of a plurality of members such as the element Ca and the bracket Cb, the manufacturing cost increases due to an increase in the number of parts, and the antenna Ca Since it is necessary to assemble the bracket Cb and the bracket with each other, there is a disadvantage that the manufacturing process is complicated. The present invention has been made in view of the above circumstances, and an object thereof is to provide a wireless device capable of preventing an increase in manufacturing cost and a complicated manufacturing process due to the structure of an antenna.

[0004]

Therefore, in the present invention, a bracket for fixing the element to the casing and connecting to the wireless section is formed integrally with the element at the base end of the element in the antenna.

[0005]

[Action]

 According to the above configuration, the number of parts constituting the antenna is reduced and the process of assembling the antenna element and the bracket is unnecessary.

[0006]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment. As shown in FIGS. 1 and 2, a wireless device 1 according to the present invention includes a casing 10 and a transmitting / receiving antenna 20, and a wireless circuit unit (not shown) is housed inside the casing 10. is set up.

The antenna 20 is a so-called helical antenna and includes a coil-shaped element 20A and a bracket 20B provided at a base end portion 20Aa of the element 20A.

Further, as clearly shown in FIG. 2, the element 20A of the antenna 20 is made by bending the conductor rod 21 into a coil shape, while the bracket 20B is formed by bending the conductor rod 21 into a ring shape. It is made by bending into.

That is, the antenna 20 is one in which the element 20A and the bracket 20B are integrally formed by bending one conductor rod 21, and this reduces the number of parts constituting the antenna 20. Moreover, the work of assembling the element 20A and the bracket 20B is unnecessary.

As shown in FIGS. 1 (a) and 1 (b), the antenna 20 is constructed by fixing the bracket 20 B to the mounting boss 11 protruding from the casing 10 by using a set screw 30. It is attached to the casing 10.

A lug terminal 40 is fastened to the mounting boss 11 of the casing 10 together with the bracket 20B of the antenna 20 by the set screw 30, and a wiring cable 50 is attached to the lug terminal 40. The wiring cable 50 is connected to a wireless unit (not shown).

As a result, electric power is supplied between the element 20A of the antenna 20 and the radio section via the bracket 20B, the lug terminal 40, and the wiring cable 50.

In the above embodiment, the wireless device in which the antenna is housed and installed inside the casing is shown as an example. However, like the conventional wireless device A shown in FIGS. 3 to 5, an external tube is used. It is needless to say that the present invention can be effectively applied to a wireless device in which an antenna is attached to a casing so that the covered element is exposed to the outside of the casing.

Further, in the above-described embodiment, the wireless device using the helical antenna formed by forming the element in a coil shape is illustrated, but the present invention is not limited to the helical antenna, and various types of devices such as a loop antenna can be used. Of course, it can be effectively applied to a wireless device using an antenna.

[0015]

[Effect of device]

 As described above in detail, according to the wireless device of the present invention, a bracket for fixing the element to the casing and connecting to the wireless part is formed integrally with the element at the base end of the element in the antenna. Compared to the conventional wireless device in which the element and the bracket are composed of separate parts, the number of parts is reduced, which makes it possible to prevent an increase in manufacturing cost. Since the assembly process is not required, it is possible to prevent the manufacturing process from becoming complicated.

[Brief description of drawings]

1 (a) and 1 (b) are cross-sectional views of a main part showing the vicinity of an antenna of a wireless device according to the present invention.

FIG. 2 is a perspective view of an essential part showing an antenna of a wireless device according to the present invention.

FIG. 3 is an overall perspective view showing the appearance of a general wireless device.

FIG. 4 is an overall perspective view showing an antenna in a conventional wireless device.

5 (a) and 5 (b) are cross-sectional views of relevant parts showing the periphery of an antenna in a conventional wireless device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wireless device, 10 ... Casing, 11 ... Mounting boss, 20 ... Antenna, 20A ... Antenna element, 20Aa ... Base end part, 20B ... Bracket, 21 ... Conductor rod, 30 ... Set screw, 40 ... Lug terminal.

Claims (1)

[Scope of utility model registration request] 1. A radio apparatus having a casing for accommodating a radio unit and an antenna attached to the casing and connected to the radio unit, wherein the element is provided at the base end of the element of the antenna. A wireless device, comprising a bracket fixed to a casing and connected to the wireless unit, the bracket being integrally molded with the element.