JP2007036522A - Handy radio communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handy radio communication device that has fine appearance and moreover, at a low manufacturing cost. <P>SOLUTION: Shock-absorbing dampers 8, 12a, 13a are interposed between an outer shell case 5 and a device body chassis 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a handy wireless communication device, and more particularly to an impact resistant structure thereof.

  An example of a conventional handy wireless communication device will be described with reference to FIGS. FIG. 4 shows a schematic appearance of a conventional handy radio communication device. As shown in detail in FIG. 5, the device body chassis 1 is attached to the front case 20 with screws 14 and 14, and covers the front surface, the upper surface, the lower surface, and both side surfaces.

  The operation knobs 21 are projected from the upper surface of the front case 20. Note that the rubber case 22 and the escutcheon 23 shown in FIG. 6 and the microphone cord connector 24 shown in FIG. 7 are provided on both sides of the front case 20, but these are not shown in FIG. Yes.

  A handy wireless communication device, that is, a portable wireless device that is used while being held by hand, has shock absorbing dampers 27 and 27 as shown in FIG. 4 fixed to the outer surface of the device in order to protect the device from a drop impact. The material of the shock absorbing damper is generally an elastomer resin or rubber. The shock received by such a shock absorbing damper is attenuated to prevent the breakdown of electrical components inside the equipment.

  Further, as shown in FIG. 5, the conventional handy wireless communication device has a top panel 3 fixed to the device body chassis 1, and a rotating shaft of a rotating electronic component protruding from the top panel 3 is a knob hole of the front case 20. .. Protrudes from 20a, 20a... And knobs 21, 21. The device body chassis 1 houses a printed circuit board that constitutes a circuit of the handy wireless communication device.

  Further, a side key including a key for operating a PTT (push to talk) switch and a mounting portion for a microphone cord connector are provided on the side surface of the front case 20. FIG. 6 shows the structure of this side key.

  Side key holes 20b, 20b,... Are provided on the side surface of the front case 20 shown in FIG. 6, and an escutcheon 23 is fitted over the rubber knob 22 therebetween. On the back surface of the rubber knob 22 is provided a conductor foil that conducts between the patterns by being pressed against an opposing pattern provided on the switch board 2 shown in FIG. A membrane switch is constituted by the rubber knob on which the conductive foil is formed and the pattern of the switch substrate.

  Each protrusion of the rubber knob 22 protrudes from the hole of the escutcheon 23, and the protrusion in the middle is a key for operating the PTT switch. When this key is pressed, the transmission state is established. As a switch operated by the side key, a tact switch may be used instead of the membrane switch having the above configuration.

  A fixing portion of the microphone cord connector 24 shown in FIG. 7 is provided on the side surface of the front case 20 opposite to the side surface on which the side key is provided. The microphone cord connector 24 connected to the microphone cord 25 is provided with a claw 24a and a screw insertion hole 24b.

  The side surface of the front case 20 is provided with a claw fitting hole 20c, a hole for exposing the main body side connector 1c provided in the main device chassis, and a hole for exposing the connector fixing screw hole 1b provided in the main device chassis 1. It has been.

  In order to fix the microphone cord connector 24 to the front case 20, first, the claw 24 a is engaged with the claw fitting hole 20 c, and the microphone cord connector 24 is rotated around the engaging portion to contact the microphone cord connector 24. (Not visible in FIG. 7) is fitted into the main body side connector 1c. Thereafter, the screw 26 inserted through the screw insertion hole 24b is screwed into the connector fixing screw hole 1b to fix the microphone cord connector 24.

The operation panel proposed in Japanese Patent Application Laid-Open No. 11-179688 is provided with a protective plate 7 having a shape and a size that protrudes from the outer peripheral portion of the operation panel casing 1 in order to protect the casing and electronic circuit of the operation panel from dropping impact. Provided.
Japanese Patent Laid-Open No. 11-179688, abstract, FIG.

  The above-described conventional handy wireless communication device shown in FIG. 4 or the operation panel proposed in Japanese Patent Laid-Open No. 11-179688 has a dull or protective plate on the outer shell, so the appearance is not good, and the design is The degree of freedom becomes extremely small.

  In addition, when the double molding is performed to provide the damper, the mold becomes expensive. Even when the damper is pasted on the outer shell, the number of steps for pasting increases, the manufacturing cost increases, and there is a risk of peeling. Furthermore, when the damper is made of an elastomer or rubber, which is a different material from the outer shell, the appearance appears, so there are problems that the choice of materials is narrowed, the dirt is likely to become dirty, and the dirt is conspicuous.

  Further, in the conventional handy wireless communication device described with reference to FIGS. 5 to 6, it is good that the front case 20 is not deformed as shown in FIG. 8 (a), but FIGS. 8 (b) and 8 (c). As shown, problems arise when the front case 20 is deformed. In FIG. 8, a tact switch is depicted as a switch operated by the side key 22 (rubber knob). The operating stroke of the tact switch is generally 0.25 mm.

  As shown in FIG. 8B, when the front case 20 spreads in the direction of the arrow, the feeling when the side key 22 is operated may be deteriorated, and the microphone cord connector 24 may be poorly contacted. As shown in FIG. 8C, when the front case 20 is narrowed in the direction of the arrow, the tact switch may be always in a contact state or the microphone cord connector 24 may be in an overpressure state.

  Further, in the conventional handy wireless communication device, the front case 20 is connected to the upper surface as shown in FIG. 5, so that it is necessary to remove the knobs 21, 21. Further, when the front case 20 is removed from the device body chassis 1, the microphone cord connector 24 cannot be fixed, which is inconvenient.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a handy wireless communication device that has good appearance and low manufacturing costs. Another object of the present invention is easy to maintain. It is to provide a handy wireless communication device.

  The handy wireless communication device of the present invention has an impact absorbing damper interposed between the outer case and the device main body chassis.

  In the handy wireless communication device, a waterproof packing separated from the shock absorbing damper and the shock absorbing damper is interposed between the outer case and the equipment body chassis.

  In the handy wireless communication device, a waterproof packing integral with the shock absorbing damper is interposed between the outer case and the device main body chassis together with the shock absorbing damper.

  In addition, the handy wireless communication device of the present invention covers the upper surface of the equipment body chassis and the upper half of both sides with an upper case, and the front part of the equipment body chassis, the lower half of both sides, and the lower part of the equipment body chassis. It is covered with a case, and an impact absorbing damper is interposed between the front surface case and the equipment body chassis.

  Further, in the handy wireless communication device, a PTT key and a microphone cord connector are fixed to both side surfaces of the upper surface outer case.

  In each of the handy wireless communication devices, a waterproof packing separated from the shock absorbing damper is interposed between the front case and the device main body chassis together with the shock absorbing damper.

  In each of the handy wireless communication devices, a waterproof packing integral with the shock absorbing damper is interposed between the front case and the equipment body chassis together with the shock absorbing damper.

  According to the handy wireless communication device of the present invention, the appearance is good, the degree of freedom in design is high, the manufacturing cost is low, and there is no fear of failure due to a drop impact.

  The best mode for carrying out the present invention will be described below with reference to examples.

  1A is an exploded perspective view showing a device main body chassis of a handy wireless communication device according to Embodiment 1 of the present invention, FIG. 1B is a perspective view showing an outer case of the handy wireless communication device, and FIG. (c)-(f) is a perspective view which shows the example of the shock-absorbing damper and waterproof packing used for the same handy wireless communication device.

  The device main body chassis 1 shown in FIG. 1A has a switch board 2 fixed as in the conventional handy wireless communication device 1 described in FIG. 5, and a speaker 4 (not shown in FIG. 5). It is fixed. A top panel 3 is fitted on the upper surface of the device body chassis 1, and a rotating shaft of a rotating electronic component fixed inside the device body chassis 1 protrudes from a hole in the top panel 3. However, the rotation axis is not visible in FIG.

  The outer case 5 shown in FIG. 1 (b) covering the upper surface, lower surface, both side surfaces and the front surface of the device body chassis 1 is connected to the device body chassis 1 with screws 14 shown in FIG. The rotary shaft protrudes from the hole on the upper surface of the device body chassis 1 and a knob is attached. Between the device main body chassis 1 and the outer case 5, an impact absorbing damper, a waterproof packing, etc. shown in any of FIGS. 1C to 1F are interposed.

  Reference numeral 8 shown in FIG. 1C denotes a shock absorbing damper, which is inserted between the lower surface and both side surfaces of the device body chassis 1 and the outer case 5. A frame-shaped packing 10 is sandwiched between the entire circumference of the front surface of the device main body chassis 1 and the outer case 5 and waterproofs the device main body chassis 1. The ring-shaped speaker packing 9 is sandwiched between the periphery of the speaker 4 and the outer case 5 to waterproof the speaker. Since the shock absorbing dampers 8 and the like shown in FIG. 1C are separated from each other, it is possible to use an optimum material for each, and it is possible to improve waterproof performance and shock absorbing performance.

  Reference numeral 11 shown in FIG. 1 (d) denotes a planar packing in which a speaker packing portion 11 a is integrally formed, and a hook-shaped portion provided around the speaker packing portion 11 a is formed between the entire circumference of the front surface of the device body chassis 1 and the outer case 5. It is sandwiched between them and waterproofs the device body chassis 1. The ring-shaped speaker packing portion 11a is sandwiched between the periphery of the speaker 4 and the outer case 5 to waterproof the speaker.

  Reference numeral 8 denotes a shock absorbing damper, which is sandwiched between the lower surface and both side surfaces of the device main body chassis 1 and the outer case 5. Since the planar packing 11 has a planar shape, it is easy to handle and the assembly work is simplified. Further, since the shock absorbing damper 8 and the like are separated from the planar packing 11, it is possible to use an optimum material for each, and it is possible to improve waterproof performance and shock absorbing performance.

  The speaker packing 9 shown in FIG. 1E is the same as that described with reference to FIG. The frame-shaped packing 12 shown in FIG. 1 (e) is integrally formed with shock absorbing damper portions 12a, 12a. The frame-shaped packing 12 is sandwiched between the entire circumference of the front surface of the device main body chassis 1 and the outer case 5 to waterproof the device main body chassis 1. The shock absorbing damper portions 12a, 12a... Are sandwiched between the lower surface and both side surfaces of the device main body chassis 1 and the outer case 5. If the material of the shock absorbing damper portion 12a and the frame portion of the frame-shaped packing 12 are the same, the manufacturing is simple and the parts and assembly costs can be reduced.

  A planar packing 13 shown in FIG. 1 (f) is integrally formed with a speaker packing portion 13a and shock absorbing damper portions 13b, 13b. A hook-shaped portion provided around the planar packing 13 is sandwiched between the entire circumference of the front surface of the device main body chassis 1 and the outer case 5 to waterproof the device main body chassis 1. The ring-shaped speaker packing 13a is sandwiched between the periphery of the speaker 4 and the outer case 5 to waterproof the speaker. The shock absorbing damper portions 13b, 13b,... Are sandwiched between the lower surface and both side surfaces of the device body chassis 1 and the outer case 5. If the packing and the damper are integrated, the cost of parts management and assembly is reduced.

  The operation of the shock absorbing damper and shock absorbing damper portion will be described with reference to FIG. 3 (a) and 3 (b) are cross sections through which the central axis of the screw 14 connecting the outer case 5 and the device body chassis 1 passes, and the cross sections of FIGS. 3 (c) and 3 (d) are It is a cross section of a portion without the screw 14.

  The screw 14 is inserted into the screw insertion hole 1 a of the device main body chassis 1 and screwed into the screw hole provided in the boss 5 a of the outer case 5. The inner diameter of the screw insertion hole 1a is considerably larger than the outer diameter of the screw 14, and there is a large clearance therebetween.

  FIGS. 3A and 3C show a state in which the handy wireless communication device of the embodiment is not subjected to a drop impact. At this time, the device body chassis 1 is lifted by the elasticity of the shock absorbing damper 8 and the screw 14 is It exists in the center position of the screw penetration hole 1a.

  When the handy wireless communication device receives a drop impact, the device main body chassis 1 moves downward as indicated by arrows in FIGS. 3B and 3D, and the screw 14 comes to the upper end position of the screw insertion hole 1a. At this time, the shock absorbing damper 8 is compressed by the dimension δ shown in the figure. The impact is absorbed by this compressive force, and the members inside the equipment body chassis 1 are protected.

  Since the shock absorbing damper does not appear outside as described above, the appearance design can be improved, and the member inside the device main body chassis 1 can be protected from the drop impact. Further, it is not necessary to use a highly difficult component such as integrally molding the outer case and the shock absorbing damper. In addition, since the shock absorbing damper is disposed inside the outer case, the degree of freedom in selecting the hardness of the material is increased. Furthermore, in the case of waterproofing, the manufacturing cost can be reduced by integrating the shock absorbing damper with the waterproof packing.

  2A is an exploded perspective view showing a device main body chassis of a handy wireless communication apparatus according to a second embodiment of the present invention, and FIG. 2B is a perspective view showing a front case of the handy wireless communication apparatus. 2 (c) to (f) are perspective views showing examples of shock absorbing dampers and waterproof packing used in the handy wireless communication device.

  In this example, the outer case 6 covers the upper surface of the device main body chassis 1 and the upper half of both side surfaces, and the front case of the device main body chassis 1 covers the front surface, the lower half of both surfaces, and the lower surface. It is divided into seven.

  The upper surface case 6 shown in FIG. 2 (a) is fastened to the device body chassis 1, the operation knob protrudes from the hole on the upper surface, and the side key including the PTT key described in the conventional example and the microphone on both side surfaces. A cord connector fixing portion is provided.

  The front case 7 shown in FIG. 2B is connected to the device main body chassis 1 with screws as described with reference to FIG. 3, and between the front case 7 and the device main body chassis 1. The shock absorbing damper, waterproof packing, etc. shown in any of FIGS. 2 (c) to 2 (f) are interposed. The configuration of these shock absorbing dampers and the like is the same as that described in the first embodiment, and detailed description thereof is omitted.

  The handy wireless communication device according to the second embodiment has the features of the handy wireless communication device according to the first embodiment, and the upper surface outer case 6 is a small component and is not easily deformed. It becomes possible to keep the operation feeling of the side key constant and to keep the fitting pressure of the microphone cord connector constant.

  Since the front case 7 that supports the device main body chassis 1 in a floating state does not have a microphone cord connector fixing portion or the like, the device main body chassis 1 can be completely brought into a floating state, and impact resistance is improved.

  Further, since the outer case is divided into two parts to be small parts, there is little risk of occurrence of defective products due to warpage or the like. Furthermore, it is possible to perform inspections and services during assembly without removing the operation knob and with the microphone cord connector attached.

  The embodiment is configured as described above, but the invention is not limited to this. For example, when waterproof performance is not required, a shock absorbing damper is not provided between the equipment body chassis and the outer case. May be interposed.

  Further, a projecting operation knob protruding from a hole provided in the outer case 5 or 7 is formed on the planar packing 11 or 13 used in the embodiment, and a conductive foil is provided on the back surface of the operation knob. By pressing, the opposing substrate pattern may be closed with the conductive foil, and the control operation may be performed. With such a configuration, the number of parts and assembly man-hours of the handy radio communication device can be reduced.

1A is an exploded perspective view showing a device main body chassis of a handy wireless communication device according to Embodiment 1 of the present invention, FIG. 1B is a perspective view showing an outer case of the handy wireless communication device, and FIG. (c)-(f) is a perspective view which shows the example of the shock-absorbing damper and waterproof packing used for the same handy wireless communication device. 2A is an exploded perspective view showing a device main body chassis of a handy wireless communication apparatus according to a second embodiment of the present invention, and FIG. 2B is a perspective view showing a front case of the handy wireless communication apparatus. 2 (c) to (f) are perspective views showing examples of shock absorbing dampers and waterproof packing used in the handy wireless communication device. FIGS. 3A to 3D are partial sectional views for explaining the operation of the handy wireless communication device according to the first and second embodiments of the present invention. It is a perspective view which shows the example of the external appearance of the conventional handy radio | wireless communication apparatus. It is a partial exploded perspective view showing the handy radio communication device. It is a partial exploded perspective view showing the handy radio communication device. It is a partial exploded perspective view showing the handy radio communication device. It is sectional drawing for demonstrating the effect | action of the handy radio | wireless communication apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body chassis, 1a Screw insertion hole, 1b Connector fixing screw hole, 1c Main body side connector 2 Switch board 3 Top panel 4 Speaker 5 Outer case 5a Boss 6 Top surface outer case 7 Front surface outer case 8 Shock absorbing damper 9 Speaker Packing 10 Frame Packing 11 Planar Packing, 11a Speaker Packing Part 12 Frame Packing, 12a Shock Absorbing Damper Part 13 Plane Packing, 13a Speaker Packing Part, 13b Shock Absorbing Damper Part 14 Screw 20 Front Case, 20a Knob hole, 20b Side key hole, 20c Claw fitting hole 21 Knob 22 Rubber knob 23 Escussion 24 Microphone cord connector, 24a Claw, 24b Screw insertion hole 25 Microphone cord 26 Connector fixing screw 2 Shock-absorbing damper

Claims (7)

A handy wireless communication device characterized in that a shock absorbing damper is interposed between the outer case and the device body chassis. The handy wireless communication device according to claim 1, wherein a waterproof packing separated from the shock absorbing damper is interposed between the outer case and the device main body chassis together with the shock absorbing damper. The handy wireless communication device according to claim 1, wherein a waterproof packing integral with the shock absorbing damper is interposed between the outer case and the device main body chassis together with the shock absorbing damper. Cover the upper surface of the device main body chassis and upper half of both sides with the upper surface outer case, cover the front surface of the device main body chassis, the lower half of both surfaces and the lower surface with the front surface outer case, the front surface outer case and the device A handy wireless communication device characterized in that a shock absorbing damper is interposed between the main body chassis and the main body chassis. The handy wireless communication device according to claim 4, wherein a PTT key and a microphone cord connector are fixed to both side surfaces of the upper surface outer case. The handy wireless communication device according to claim 4 or 5, wherein a waterproof packing separated from the shock absorbing damper is interposed between the front case and the equipment body chassis together with the shock absorbing damper. 6. The handy wireless communication device according to claim 4, wherein a waterproof packing integral with the shock absorbing damper is interposed between the front case and the equipment body chassis together with the shock absorbing damper.

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