JPH0666109U - Wireless device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a wireless device that prevents a small-diameter portion of the base of an antenna top having a coiled antenna element from being damaged by an impact load. [Structure] A rod-shaped antenna 2 is pulled out to a housing 1 and supported so as to be stored. The housing 1 is provided with a protective housing 13 for housing the base of the antenna top 7 having the coiled antenna element 4 in the rod-shaped antenna 2 therein in a fitted state. When the rod-shaped antenna 2 is housed in the housing 1, the base of the antenna top 7 protruding from the housing 1 is housed in the protective housing 13 in a fitted state. The protective storage unit 13 can receive an impact applied to the antenna top 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wireless device including a bar-shaped antenna element that has a coil-shaped antenna element at a tip portion of the bar-shaped antenna element and can be stored and drawn.

[0002]

[Prior art]

 Conventionally, a configuration as shown in FIGS. 4 and 5 is known as a wireless device including this type of rod-shaped antenna. FIG. 4 is a schematic perspective view, and FIG. 5 is a sectional view of a main part.

In FIG. 4 and FIG. 5, reference numeral 1 is a housing of a wireless device, and 2 is a rod-shaped antenna that is drawn out from the housing 1 and is supported so that it can be stored. In the rod-shaped antenna 2, a coil-shaped antenna element 4 is continuously provided at the tip of a rod-shaped antenna element 3. The rod-shaped antenna element 3 is covered with a cover 5 except the tip portion, and the coil-shaped antenna element 4 is covered with a resin cap 6 to form an antenna top 7. The tip end of the rod-shaped antenna element 3 is covered with a connecting tube 8, and the cover 5 and the cap 6 of the antenna top 7 are integrated by the connecting tube 8.

A hole 9 is formed on the upper surface of one side of the housing 1, and a recess 10 having a larger diameter than the hole 9 is formed above the hole 9. The cylindrical portion of the holder 11 is inserted into the hole 9, and the flange portion of the holder 11 is housed in the recess 10. A screw is formed on the outer periphery of the cylindrical portion of the holder 11, and the support cylinder 12 is screwed to this screw, and the upper end surface of the support cylinder 12 is engaged with the lower surface of the peripheral edge of the hole 9 to prevent the holder 11 from coming off. It is installed. Then, the rod-shaped antenna 2 is inserted into the holder 11 so as to be movable in the axial direction, and the rod-shaped antenna element 3 is housed in the housing 1. The antenna top 7 abuts on the upper surface of the antenna 11, and the antenna top 7 projects outside the housing 1.

The operation of the above configuration will be described below. By pinching the antenna top 7 and pulling it upward and extending the rod-shaped antenna 2 with respect to the housing 1, the coil-shaped antenna element 4 and the rod-shaped antenna element 3 can transmit and receive an electric wave. On the contrary, by storing the rod-shaped antenna 2 in the housing 1 and projecting the antenna top 7 on the housing 1, the coil-shaped antenna element 4 built in the antenna top 7 transmits and receives radio waves. It can be performed.

[0006]

[Problems to be solved by the device]

 However, in the above-mentioned conventional wireless device, the antenna top 7 protruding from the housing 1 becomes large because the coil-shaped antenna element 4 is built in the antenna top 7, and the root of the antenna top 7 has a cross-sectional area. It is a portion that changes extremely smaller than the antenna top 7, and has the lowest strength. Therefore, when the user unintentionally drops the wireless device or hits the antenna top 7, the load applied to the root of the antenna top 7 increases, and the antenna top 7 is damaged from the narrow part of the root. A problem arises.

The present invention solves such a conventional problem. In order to improve the antenna performance, a coil-shaped antenna element is built in the antenna top, and even if the antenna top becomes large, it is dropped or bumped. It is an object of the present invention to provide a wireless device capable of preventing the antenna top from being damaged from the root when the antenna is damaged.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a rod-shaped antenna having an antenna top portion in which a coil-shaped antenna element at the tip of the rod-shaped antenna element is covered with a cap, is drawn out into a housing, and is supported so that it can be stored. When storing the rod-shaped antenna, a protective storage portion is formed to store the base portion of the antenna top protruding outside the housing in a fitted state.

[0009]

[Action]

 Therefore, according to the present invention, when the rod-shaped antenna is housed in the housing, the base of the antenna top protruding from the housing and having the coil-shaped antenna element is fitted in the housing of the housing for protection. Since it is stored, even if a shock is applied to the antenna top, it can be received by the protective storage section.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a first embodiment of the present invention will be described. 1 and 2 show a wireless device according to an embodiment of the present invention, FIG. 1 is a schematic perspective view, and FIG. 2 is a sectional view of a main part.

The present embodiment differs from the above-described conventional example in that a structure is provided to protect the antenna top from damage when it is impacted, and another structure is provided. Since this is the same as the above-mentioned conventional example, the same parts are denoted by the same reference numerals and the description thereof will be omitted, and the different configuration will be described.

As shown in FIGS. 1 and 2, the base of the antenna top 7 of the rod-shaped antenna 2 is accommodated in the housing 1 in the outer periphery of the recess 10 for accommodating the flange-shaped portion of the holder 11. The protective storage 13 is formed in a ring shape so as to integrally project.

In the above configuration, the operation when the rod-shaped antenna is stored will be described below. When the rod-shaped antenna 2 is housed in the housing 1, the base of the antenna top 7 protruding from the housing 1 is housed in the protective housing 13 of the housing 1 in a fitted state. As a result, even if an impact is applied to the antenna top 7 from the side or the diagonal direction, the outer peripheral surface of the antenna top 7 immediately contacts the inner peripheral surface of the protective storage portion 13, receives an impact there, and the antenna top 7 is exposed. The load on the narrow root can be minimized. Therefore, it is possible to prevent the antenna top 7 from being damaged from the narrow part of the root.

Next, a second embodiment of the present invention will be described. FIG. 3 is a schematic perspective view showing a wireless device according to a second embodiment of the present invention.

In this embodiment, as shown in FIG. 3, a protective storage portion 13 for storing the base portion of the antenna top 7 in a fitted state is formed by being recessed in the housing 1. Similar to the first embodiment, the base of the antenna top 7 can be housed in a fitted state to protect it from impact.

[0017]

[Effect of device]

 As described above, according to the present invention, when the rod-shaped antenna is housed in the housing, the base of the antenna top protruding from the housing and incorporating the coiled antenna element is fitted into the housing housing for protection. Since it is stored in the state, even if a shock is applied to the antenna top, it can be received by the protective storage section. Therefore, it is possible to protect the antenna top portion from an impact and prevent it from being damaged.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a wireless device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing the wireless device.

FIG. 3 is a schematic perspective view showing a wireless device according to a second embodiment of the present invention.

FIG. 4 is a schematic perspective view showing a conventional wireless device.

FIG. 5 is a cross-sectional view of a main part showing the wireless device.

[Explanation of symbols]

 1 Radio Device Case 2 Rod Antenna 3 Rod Antenna Element 4 Coil Antenna Element 5 Cover 6 Cap 7 Antenna Top 13 Protective Storage

Claims (1)

[Scope of utility model registration request] 1. A rod-shaped antenna having an antenna top portion in which a coil-shaped antenna element at the tip of the rod-shaped antenna element is covered with a cap is pulled out into a housing and supported so that it can be stored, and when the rod-shaped antenna is stored in the housing. A wireless storage device, wherein a protective storage portion is formed to store a base portion of the antenna top protruding outside the housing in a fitted state.