JP4589577B2 - Antenna device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an antenna device, and more particularly to an antenna device that can be comfortably rotated to a functional position or a storage position with a simple configuration and stopped.
[0002]
[Prior art]
Conventionally, when an antenna device attached to various communication devices is attached so as to be adjacent to the side surface of the communication device, the antenna device is prevented from being damaged by being housed on the side surface of the communication device when not used. On the other hand, some are designed so that radio waves can be transmitted and received with high sensitivity by rotating the antenna so as to be exposed above the upper surface of the communication device during use.
[0003]
In this type of antenna device, the base side of the antenna bent so that it can be rotated at a position adjacent to the communication device is inserted into a mounting hole opened in the housing of the communication device, and then the antenna is rotated. In order to generate an operating torque for the operation, a spring washer and an E-ring are press-fitted into the base of the antenna so as to sandwich the wave washer and the resin washer, and the antenna is attached to the communication device.
[0004]
[Problems to be solved by the invention]
However, in such a conventional antenna device, since there are many parts to be attached to the communication device so that the antenna can be rotated, it takes time to assemble, and press-fitting while suppressing the E-ring. Since the work is required, there is a problem that skill is required for the assembly work.
[0005]
The present invention has been made to solve such a problem, and provides an antenna device capable of attaching an antenna to a communication device with a simple configuration.
[0006]
[Means for Solving the Problems]
The antenna device of the present invention has one end attached to the communication device, the other end provided outside the communication device, a bent portion formed between the one end and the other end, and the one end and the bent portion. An L-shaped antenna with a recess formed between, a holding portion that rotatably holds the antenna, an elastic piece that engages one end with the recess, and the other end of the elastic piece fixed to the communication device And a fixing member.
[0007]
With this configuration, one end portion of the elastic piece is engaged with the concave portion of the antenna and the other end portion of the elastic piece is fixed to the communication device, so that the antenna can be attached to the communication device with a simple configuration.
[0008]
Further, the concave portion of the antenna device of the present invention is provided with a restraining surface that restrains the rotation of the antenna. With this configuration, the antenna can be rotated and fixed to a desired position such as an optimal functional position by setting the suppression surface.
[0009]
Moreover, the recessed part of the antenna device of the present invention has a plurality of restraining surfaces. With this configuration, there is an effect that it can be stopped at a plurality of rotation positions such as a functional position or a storage position.
[0010]
Further, the concave portion of the antenna device of the present invention has a sliding contact surface formed in an arc shape. With this configuration, it is possible to prevent the antenna from stopping at a position other than the storage position or the optimal functional position, and to feel and click the storage position or the optimal functional position. It has the action.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings. 1-6 is a figure which shows one Embodiment of the antenna device based on this invention.
[0012]
In FIG. 1, a communication device 10 includes an antenna device 11 for transmitting and receiving radio waves, and this antenna device 11 is L-shaped that is insert-molded so that a core wire 12 that functions as an antenna is incorporated in resin. The antenna 13 is provided, and the antenna 13 is rotatably held by a holding portion 15 formed in the housing 14 of the communication device 10.
[0013]
As shown in FIGS. 2 and 3, the antenna 13 is formed in a long shape and rotated at a distal end (other end portion) 21 side, and a base portion (one end portion) formed in a short shape and held by the holding portion 15. ) The short base is bent so that the included angle with the 22 side is a right angle, and the long tip 21 side can be rotated while adjoining along the side surface of the communication device 10. A space between the bent portion 23 on the 22 side and the end portion 24 is rotatably held by the holding portion 15.
[0014]
The base portion 22 of the antenna 13 is formed with an arc surface (sliding contact surface) 26 having an arc shape with a small diameter so that the inside of the bent portion 23 and the end portion 24 becomes a stepped portion (concave portion) 25. The stepped portion 25 is provided with a planar surface (inhibition surface) 27 formed by cutting out a part of the circular arc surface 26 and extending each other, for example, so as to cross each other.
[0015]
4 and 5, the holding portion 15 is formed in a semicircular arc shape on the inner surface of the housing 14 of the communication device 10, and receives the outer peripheral surfaces of the bent portion 23 and the end portion 24 so as to be slidable and rotatable. The receiving portion 31 that rotatably supports the base portion 22 of the antenna 13 and the housing 14 of the communication device 10 that has the other end side pressed into the step portion 25 of the base portion 22 of the antenna 13 that is formed in a plate shape. And an elastically deformable elastic piece 33 screwed with a screw (fixing member) 32.
[0016]
For this reason, the antenna device 11 can be assembled simply by inserting the base portion 22 of the antenna 13 into the mounting hole opened in the housing 14 of the communication device 10 and pressing the elastic piece 33 into the stepped portion 25 and screwing with the screw 32. At this time, the antenna 13 is pressed against the receiving portion 31 formed on the housing 14 by the elastic piece 33 at the outer peripheral surface of the bent portion 23 and the end portion 24 (which may include the arc surface 26 of the step portion 25). The elastic piece 33 is positioned in the stepped portion 25 and the base portion 22 is restricted from moving in the axial direction (extending direction), and the assembled state is maintained. Note that the end surface of the end portion 24 is pressed by the housing 14 of the communication device 10 and restricted from moving further.
[0017]
In this state, the antenna 13 is sandwiched between the receiving portion 31 and the elastic piece 33 while the base piece 22 side is sandwiched between the elastic pieces 33 as shown in FIG. When surface contact is made with the flat surface 27 in the stepped portion 25, the base portion 22 is prevented from rotating, and the distal end 21 side can be stopped at the storage position hidden adjacent to the side surface of the communication device 10, and FIG. As shown in FIG. 6C, after the elastic piece 33 is largely elastically deformed and the tip 21 side is rotated in the opening direction so as to be in sliding contact with the circular arc surface 26 in the step portion 25 as shown in FIG. In addition, when the elastic piece 33 is elastically restored again and comes into surface contact with the opposite flat surface 27 in the stepped portion 25, the base portion 22 is prevented from rotating, and the distal end 21 side stops at a position where the antenna device 11 functions. Can be
[0018]
The elastic piece 33 is bent in a direction in which the inside of the step portion 25 of the antenna 13 is pressed to increase the elastic force, and is erected on the housing 14 of the communication device 10 so that it can be attached in this state. One side of the screwed side is cut out so that a rib (not shown) is positioned.
[0019]
As described above, in the present embodiment, the antenna device 11 has a small number of components such as the antenna 13, the screw 32, and the elastic piece 33, and the communication device 10 can be connected to the communication device 10 for a short time by a simple operation that does not require skill of screwing. Can be attached to.
[0020]
Further, since the antenna 13 is formed of a self-lubricating resin including the step portion 25, the tip 21 side can be smoothly rotated. When the tip 21 side is rotated, the elastic piece 33 is provided. Since the rotation of the base portion 22 is stopped by pressing and suppressing the flat surface 27 in the step portion 25 by elastic force, the tip 21 side is set as the storage position while giving a click feeling with a simple structure configured in a small space. It can be stopped at the functional position.
[0021]
In the present embodiment, the antenna 13 is stopped at the storage position and the functional position. However, the flat surface 27 constituting the deterrence surface of the antenna 13 is not limited to two surfaces, but three or more surfaces, for example, FIG. 6 (b) may be formed so as to stop the rotation, and conversely, for example, only one surface can be stopped so that it can be stopped only in either the storage position or the functional position. Needless to say. Further, the rotation may be stopped by providing a concave portion on the restraining surface and a convex portion on the elastic piece 33.
[0022]
【The invention's effect】
As described above, according to the present invention, the antenna can be attached to the communication device only by engaging one end portion of the elastic piece with the concave portion of the antenna and fixing the other end portion of the elastic piece to the communication device. Therefore, it is possible to provide an antenna device having an excellent effect that the antenna can be attached to the communication device with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic overall configuration of an embodiment of an antenna device according to the present invention. FIG. 2A is a plan view showing a configuration of a main part of an embodiment of an antenna device according to the present invention. FIG. 3 is an AA cross-sectional view showing the main configuration of an embodiment of the antenna device according to the present invention. FIG. 3 is an enlarged cross-sectional view showing the main configuration of an embodiment of the antenna device according to the present invention. FIG. 5B is a cross-sectional view of the main part of one embodiment of the antenna apparatus according to the present invention. FIG. 5A is a plan view showing the main part of one embodiment of the antenna apparatus according to the present invention. CC sectional drawing which shows the principal part structure of one Embodiment of the antenna apparatus which concerns on this. (A) State figure explaining operation | movement of one Embodiment of the antenna apparatus which concerns on this invention (b) Antenna which concerns on this invention FIG. 3C is a state diagram for explaining the operation of the embodiment of the apparatus. FIG. State diagram illustrating the operation of the facilities embodiment EXPLANATION OF REFERENCE NUMERALS
DESCRIPTION OF SYMBOLS 10 Communication apparatus 11 Antenna apparatus 13 Antenna 14 Housing 15 Holding | maintenance part 21 Tip 22 Base part 23 Bending part 24 End part 25 Step part 26 Arc surface 27 Plane 32 Screw 33 Elastic piece

Claims (4)

One end is attached to the communication device, the other end is provided outside the communication device, a bend is formed between the one end and the other end, and the one end and the bend An L-shaped antenna with a recess formed between;
A holding portion for rotatably holding the antenna;
An elastic piece engaging one end with the recess;
An antenna device comprising: a fixing member that fixes the other end of the elastic piece to the communication device. The antenna device according to claim 1, wherein the recess includes a suppression surface that suppresses rotation of the antenna. The antenna device according to claim 2, wherein the concave portion is formed with a plurality of the suppression surfaces. The antenna device according to claim 1, wherein the concave portion includes a sliding contact surface formed in an arc shape.

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