JP3913058B2 - Structure of portable radio - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a portable wireless device in which an antenna and an operation switch are arranged outside a two-body case, and more particularly to a structure of a portable wireless device having a waterproof and dustproof function.
[0002]
[Prior art]
FIG. 6 is an overall perspective view of a conventional portable wireless device. In FIG. 6, reference numeral 1 denotes a two-body case, which is composed of one case 1a and the other case 1b. Reference numeral 2 denotes an antenna accommodating unit that accommodates, for example, an antenna of a base station that is not shown in the figure. Reference numeral 3 denotes an operation unit for a device operator to perform control such as on / off of a switch or the like provided in the device.
[0003]
FIG. 7 is a partial enlarged cross-sectional view of the attachment portion of the antenna housing portion 2 to the case. In FIG. 7, a semicircular protruding portion 4 is provided on each of the case 1a and the case 1b, and the cylindrical antenna protection having a circular recess 5 formed by both the cases 1a and 1b and tapered upward on the inside. The base 6 is fixed via a doughnut-shaped waterproof and dustproof packing 7. The antenna protection base 6 is fixed with a cylindrical antenna protection portion 8 whose upper end is closed, and an antenna 10 connected to a required circuit of the printed circuit board 9 is accommodated therein. The antenna protection base 6 and the waterproof and dustproof packing 7 and the waterproof and dustproof packing 7 and the cases 1a and 1b are fixed with an adhesive.
[0004]
FIG. 8 is a partial enlarged cross-sectional view of the attachment portion of the operation portion 3 to the case. In FIG. 8, a rectangular notch 11 is provided in part of the end surfaces of the case 1 a and the case 1 b, and the operation part 3 is provided across the notches 11. The operation unit 3 is fixed to a waterproof and dustproof packing 12 fixed to the inside of the case 1b with an adhesive or the like. A switch control protrusion 13 is provided on the bottom surface of the operation section 3, and the waterproof and dustproof packing 12 is bent when the operator presses the operation section 3. The control protrusion 13 causes the printed circuit board 14 to bend. The provided switch 15 is operated. Although one case 21a is shown in FIG. 8, the other case 21b has the same structure.
[0005]
FIG. 9 is a partially enlarged sectional view showing a waterproof and dustproof structure between the case 1a and the case 1b. In FIG. 9, a concave portion 16 is formed over the entire end surface of the case 1a, and a convex portion 17 is formed over the entire end surface of the case 1b facing the concave portion 16, so that a belt-like shape is formed in the concave portion 16 of the case 1a. After inserting the waterproof and dustproof packing 18, the convex portion 17 of the case 1 b is fitted into the concave portion 16 of the case 1 a so that the waterproof and dustproof packing 18 is deformed by the convex portion 17 so as to have a waterproof and dustproof function. It is a thing. However, the above-described mounting portion of the antenna housing portion 2 and the operation portion 3 is waterproof and dustproof between the cases 1a and 1b by the waterproof and dustproof packings 7 and 11.
[0006]
[Problems to be solved by the invention]
However, the conventional waterproof and dustproof structure for portable wireless devices has a large number of parts and a complicated structure for mounting the antenna housing portion 2 and the operation portion 3 such as a switch as described above. And a large number of parts has led to a decrease in quality.
The present invention reduces the number of parts and facilitates assembly by performing waterproof and dustproof operation between the antenna housing part, the operation part such as the switch, and the two-body case using the integrally molded packing. It improves the waterproof and dustproof function and improves the reliability of the equipment.
[0007]
[Means for Solving the Problems]
The structure of the portable wireless device according to the present invention is such that the antenna accommodating portion that accommodates the antenna drawn out from the inside of the two-body case and the switch provided inside the case can be operated from the outside. In the portable radio having a waterproof and dustproof structure by providing a packing between the two cases, the antenna housing portion is long in the height direction in which the hook portion is provided at the lower portion. The projection is formed as a dome-shaped projection, and the projection is configured as an antenna receiving portion provided so as to protrude from the inside of the case to the outer surface, and the operation portion is formed on the inner peripheral surface of the cutout portion of the case. It is configured as an operation part in which convex and concave portions are formed on the outer peripheral surface of the operation part so as to be fitted to the formed uneven part, and the packing is formed on the facing surface where both cases of the two-body structure are brought together. Uneven portions on both sides of the packing to fit made the concavo-convex portion is configured as a shape has been packing, the antenna accommodating portion, integrally formed in an annular shape by the operation unit and materials of the packing is elastically deformed The antenna accommodating portion, the operation portion, and the packing of the annular packing member are fitted between the two cases, whereby the antenna accommodating portion between the two cases, The other part between the operation part and the case is set to a sealed structure .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing an embodiment of the structure of a portable wireless device according to the present invention. In FIG. 1, reference numeral 21 denotes a two-body case, which is composed of one case 21a and the other case 21b. Reference numeral 22 denotes, for example, an antenna accommodation unit that accommodates an antenna that transmits and receives with an antenna of a base station, not shown. Reference numeral 23 denotes an operation unit for a device operator to perform on / off control etc. from the outside for a switch or the like provided inside the device. When a predetermined portion of the operation unit 23 is pressed, the portion is bent, and the operation unit 23 A switch or the like is actuated by a protruding portion protruding inward. A packing 24 is interposed between the case 21a and the case 21b.
[0009]
The antenna accommodating portion 22, the operating portion 23, and the packing 24 described above are formed in an integral annular shape as shown in FIG. 2, and the antenna accommodating portion 22 and the operating portion 23 are the same as the packing 24. For example, it is made of an elastomer containing, for example, synthetic rubber that is elastically deformed. That is, the integrally formed antenna housing portion 22, operation portion 23, and packing 24 are formed as an annular packing member 25 and are fitted between the case 21a and the case 21b.
[0010]
Next, the structure of the antenna accommodating part 22, the operation part 23, and the packing 24 and the engagement structure with the case 21a and the case 21b will be described.
FIG. 3 is a partially enlarged cross-sectional view showing a structure for attaching the antenna accommodating portion 22 to the case 21. A flange portion 22a is provided at the lower portion of the antenna accommodating portion 22, and the protruding portion 22b is formed in a dome shape that is long in the height direction, and a space for accommodating an antenna 27 connected to a required circuit of the printed circuit board 26 therein. A portion 22c is formed. The antenna accommodating portion 22 is provided across the case 21a and the case 21b, and an arc-shaped cut portion 21c is provided in a corresponding portion of both the cases 21a and 21b for accommodating the flange portion 22a. A holding portion 21d is formed.
[0011]
In this case, as shown in FIG. 1, a bulging portion 21e for stably holding the antenna housing portion 22 is formed in both cases 21a and 21b at the portion where the antenna housing portion 22 of both cases 21a and 21b protrudes. Each is provided about half a turn. The material of the antenna housing portion 22 is preferably composed of, for example, synthetic rubber or elastomer that is elastically deformed similarly to the packing 24. Although one case 21a is shown in FIG. 3, the other case 21b has the same configuration.
4A is a partially enlarged cross-sectional view showing a structure for attaching the operation portion 23 to the case 21, and FIG. 4B is a rectangular notch provided in both cases 21a and 21b to which the operation portion 23 is attached. The part 21f is shown. In addition, what is shown with the dotted line in FIG.4 (b) has shown the virtual line of the operation part 23 and packing 24 which are provided in this part.
[0012]
As shown in FIG. 4 (a), on the outer peripheral surface of the rectangular operation portion 23, there is a concave portion 23a that engages with a convex portion 21g formed on the inner peripheral surface of the cutout portion 21f of both cases 21a and 21b. It is formed, and the sealing structure of this part is formed by both fitting. The shape of the convex portion 21g formed on the inner peripheral surface of the cases 21a and 21b and the shape of the concave portion 23a formed on the outer peripheral surface of the operation portion 23 are not limited to this. Good. Further, the case 21 may be formed with unevenness, and the operation portion 23 may be formed with unevenness that engages with the unevenness of the case 21 so as to make the engagement more dense, and the shape of the engaging portion can be arbitrarily selected.
[0013]
On the inner surface side of the operation unit 23, control protrusions 23b and 23c for operating two switches 28 and 29 provided on the printed circuit board 26 are provided. On the outer surface side of the operation portion 23, pressing portions 23d and 23e that are pressed by an operator are provided at positions facing the control protrusions 23b and 23c described above. In this embodiment, grooves 23f, 23g, 23h, and 23i having required depths are provided around the inner and outer surfaces where the pressing portions 23d and 23e are formed so that the pressing operation can be performed smoothly. . The grooves 23f to 23i may or may not be provided on one side of the operation unit 23 depending on the material or thickness of the operation unit 23. The material of the operation unit 23 is made of an elastically deformable material similar to the material of the packing 24 and the antenna housing unit 22.
[0014]
Next, the engagement structure between the case 21a and the case 21b other than the antenna housing portion 22 and the operation portion 23 will be described with reference to a partially enlarged sectional view of the embodiment shown in FIG. FIG. 5 shows the shape of the packing 24 that is fitted between the case 21a and the case 21b. Similar end portions 21l and 21m are formed on the end surfaces 21j and 21k where the case 21a and the case 21b face each other. Two convex portions 24a and 24b and one concave portion 24c that are engaged with the concave and convex portions 21l and 21m of the case 21a and the case 21b are formed on both side surfaces of the packing 24, respectively.
[0015]
In addition, the uneven shape of the engaging portion between the case 21a and the case 21b and the packing 24 is not limited to the embodiment shown in FIG. 5, and for example, the uneven shape of the operation portion 23 and both the cases 21a and 21b. In this way, the shape may be a concave portion on one side and a convex portion on the other, and various other uneven shapes may be used as long as a sealed structure is formed.
The antenna housing portion 22, the operation portion 23, and the packing 24 made of an elastic material such as synthetic rubber and elastomer are formed in an annular shape that integrally seals between the two-body cases 21a and 21b. Assembling of the cases 21a and 21b in the assembling process can be performed very easily and reliably.
[0016]
【The invention's effect】
As described in detail above, a conventional portable wireless device having a two-body structure is composed of a large number of parts and has a complicated structure, and therefore requires a lot of time for assembly and production. Although the quality has been reduced due to the large number of points, in a portable wireless device having a two-body case according to the present invention, a waterproof unit provided between an antenna housing unit, an operation unit such as a switch, and a two-body case. Since the dust-proof packing is made of a single-piece packing member, the number of parts can be greatly reduced, the assembly is facilitated, the waterproof and dust-proof function is improved, and the reliability of the radio is improved. Was able to.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall structure of an embodiment of a portable wireless device according to the present invention.
FIG. 2 is a side view of a packing member including an antenna housing portion and an operation portion that are fitted between cases of the portable wireless device according to the present invention.
FIG. 3 is a partial enlarged cross-sectional view showing a structure of an antenna housing portion and a case of the portable wireless device according to the present invention.
FIG. 4 is a partially enlarged cross-sectional view showing a structure of an operation unit and a case of the portable wireless device according to the present invention.
FIG. 5 is a partially enlarged cross-sectional view showing a structure of two cases of a portable wireless device according to the present invention and a packing fitted between the cases.
FIG. 6 is a perspective view showing an example of the overall structure of a conventional portable wireless device.
FIG. 7 is a partially enlarged cross-sectional view showing a structure of an antenna housing portion and a case of a conventional portable wireless device.
FIG. 8 is a partial enlarged cross-sectional view showing a structure of an operation unit and a case of a conventional portable wireless device.
FIG. 9 is a partially enlarged cross-sectional view showing a structure of two cases of a conventional portable radio device and a packing fitted between the cases.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,21 Case 2,22 Antenna accommodating part 3,23 Operation part 4 Semicircular protrusion part 5 Circular dent 6 Antenna protection base 7,12,18 Waterproof dustproof packing 8 Antenna protection part 9,14 Printed circuit board 10, 27 Antenna 11 Notch 13 Switch control protrusions 14, 26 Printed circuit boards 15, 28, 29 Switch 16 Case recess 17 Case 1b protrusion 24 Packing 25 Annular packing member

Claims (3)

An antenna accommodating portion for accommodating an antenna pulled out from the inside of a two-body case, and an operation portion formed in the cutout portion of the case so that a switch or the like provided inside the case can be operated from the outside. In the portable radio having a waterproof and dustproof structure by providing a packing between the two cases,
The antenna housing portion is formed as a long dome-shaped projection having a flange portion at the bottom, and the projection is provided so as to protrude from the inside of the case to the outer surface. Configured as
The operation portion is configured as an operation portion in which a convex concave portion is formed on the outer peripheral surface of the operation portion so as to be fitted to the uneven portion formed on the inner peripheral surface of the cutout portion of the case.
The packing is configured as a packing in which convex and concave portions are formed on both side surfaces of the packing so as to be fitted to the concave and convex portions formed on the opposing surfaces where the two cases of the two-body structure are joined.
The antenna housing portion, the operation portion, and the packing are integrally formed in an annular shape by a material that elastically deforms to form a packing member, and the antenna housing portion, the operation portion, and the packing of the annular packing member are all A structure of a portable wireless device that is fitted between the two cases, thereby setting the antenna accommodating portion between the two cases, the operation portion, and other portions between the cases in a sealed structure.   The structure of the portable wireless device according to claim 1, wherein a groove portion having a required depth is formed around the operation pressing portion of the operation portion.   The structure of the portable wireless device according to claim 1 or 2, wherein the packing member that integrally constitutes the antenna accommodating portion, the operation portion, and the packing is made of an elastomer.

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