JP2011120054A - Mobile wireless equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide mobile wireless equipment that does not require a waterproof process with the other members by giving a waterproof function to a cable bush itself, and to provide a structure with a strong tensile strength by unifying the coating of a bush part and a cable part with the same material. <P>SOLUTION: Mobile wireless equipment has a mobile wireless equipment main body and a cable bush 13. In the cable bush, a bush part 16 and a cable part 17 are unified with the same material. A projection 23 is provided on a contacting surface 16d of the cable bush with the mobile wireless equipment main body. When the cable bush is attached to the mobile wireless equipment main body, the projection is contacted to the mobile wireless equipment main body to seal between the mobile wireless equipment main body and the cable bush liquid-tightly. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable wireless device that performs wireless communication, particularly to a portable wireless device having a cable bush.

  In portable wireless devices such as in-vehicle wireless devices, when not in use, the portable wireless device is attached to a required holder to secure and protect the portable wireless device.

  FIG. 12 shows a conventional cable bush 1.

  The cable bush 1 includes a bush portion 2 that can be connected to a portable wireless device body (not shown), and a cable portion 3 that is a separate member inserted through the bush portion 2. The bush portion 2 includes a bush portion main body 2a and a reinforcing portion 2b that reinforces the cable portion 3. The cable portion 3 penetrates the bush portion 2 and a protruding portion serves as a connection portion 4. The connecting portion 4 can be inserted into the portable wireless device main body through an opening formed in the portable wireless device main body (not shown). Further, through holes 5 are formed at both ends of the bush portion 2, and the cable bush 1 is fixed to the portable radio main body by screws (not shown) inserted through the through holes 5. ing.

  When the cable bush 1 is attached to the portable wireless device main body, the connection portion 4 is fitted into the opening of the portable wireless device main body, and the bush portion 2 and the portable wireless device are inserted by a screw inserted through the through hole 5. By screwing the machine main body, the portable radio main body and the cable bush 1 are connected.

  However, the conventional portable wireless device main body and the cable bush 1 are not waterproof, and in order to prevent water from entering the connecting portion of the portable wireless device main body and the cable bush 1, Waterproofing with a separate member was required, such as providing packing at the connection or attaching waterproof tape.

  Moreover, since the said bush part 2 and the said cable part 3 are another members, the said cable bush 1 has a weak tensile strength, and when the said cable part 3 is pulled, there is a possibility that the cable part 3 may come off from the said bush part 2. In order to further increase the tensile strength, reinforcement with another member was necessary.

JP 2008-245228 A Japanese Patent Laid-Open No. 7-307793

  In view of such circumstances, the present invention provides a portable wireless device that does not require a waterproof treatment by a separate member by providing a waterproof function to the cable bush itself, and the covering of the bush portion and the cable portion is made of the same material. Thus, a structure having a high tensile strength is provided.

  The present invention is a portable wireless device having a portable wireless device main body and a cable bush, wherein the bushing and the cable portion are integrated with the same material, and the portable wireless device main body of the cable bush. When the cable bush is attached to the portable wireless device body, the protrusion contacts the portable wireless device body so that there is a gap between the portable wireless device body and the cable bush. The present invention relates to a portable wireless device that seals liquid-tightly.

  According to the present invention, there is provided a portable radio having a portable radio main body and a cable bush, wherein the cable bush is integrally formed of the same material with the bush portion and the cable portion, and the portable radio of the cable bush. A protrusion is provided on a contact surface with the main body, and when the cable bush is attached to the portable radio main body, the protrusion contacts the portable radio main body and the portable radio main body and the cable bush. Since the space is sealed in a liquid-tight manner, it is possible to prevent water from entering the inside of the portable wireless device main body from between the portable wireless device main body and the cable bush, and it is not necessary to separately perform waterproofing treatment. Exhibits an excellent effect.

It is a perspective view of the portable radio in the 1st example of the present invention. It is a perspective view of the portable radio in the 1st example of the present invention. It is a perspective view of the cable bush in the 1st Example of the present invention. It is a principal part expanded sectional view of the portable radio | wireless machine in 1st Example of this invention. It is a principal part expanded sectional view of the portable radio | wireless machine in 1st Example of this invention. It is a principal part expanded sectional view of the portable radio which shows the modification of the waterproof part in 1st Example of this invention. It is a perspective view of the cable bush which shows the modification of the waterproof part in 1st Example of this invention. It is a perspective view of the cable bush which shows the modification of the waterproof part in 1st Example of this invention. It is a perspective view of the cable bush in the 2nd Example of this invention. It is a principal part expanded sectional view of the portable radio in the 2nd example of the present invention. It is a principal part expanded sectional view of the portable radio | wireless machine which combined the 1st Example and 2nd Example of this invention. It is a perspective view of the conventional cable bush.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, a first embodiment of the present invention will be described with reference to FIGS.

  The portable wireless device 11 in this embodiment is composed of a portable wireless device main body 12 and a cable bush 13.

  A contacted surface 12a connected to the cable bush 13 is formed at the lower end (right end in the figure) of the portable wireless device body 12, and an opening 14 having a rectangular opening is formed on the contacted surface 12a. A screw hole 15 is formed adjacent to both ends of the edge of the opening 14.

  The cable bush 13 includes a bush portion 16 and a cable portion 17, and the cable portion 17 penetrates the center of the bush portion main body 16a, and the penetration portion is reinforced by a reinforcing portion 16b integrally formed with the bush portion main body 16a. Has been. The cable portion 17 covers the cable, and the bush portion 16 and the cable portion 17 are formed of the same material, for example, an elastic material such as polyurethane or vinyl chloride, and are integrated.

  At both ends of the bush portion main body 16a, through holes 18 are formed at positions corresponding to the screw holes 15, and the screws 19 are screwed into the screw holes 15 through the through holes 18. 13 can be fixed to the portable radio main body 12. A recess 16c is formed on the opposite surface of the bushing body 16a to the abutted surface 12a so that the head of the screw 19 does not protrude when screwed.

  Further, the surface opposite to the penetration direction of the cable portion 17, that is, the contact surface 16d that contacts the contacted surface 12a, is a connection portion comprising a cable passing through the bush portion main body 16a and a connector (not shown). 21 is formed, and the outer dimension of the connecting portion 21 is smaller than the outer dimension of the opening 14.

  In addition, a rectangular parallelepiped waterproof portion 22 is formed on the abutting surface 16d by integral molding with the bush portion main body 16a, and the cable portion 17 passes through the central portion of the waterproof portion 22.

  The waterproof part 22 is formed of a material having appropriate elasticity, and the outer dimension is slightly smaller than the opening dimension of the opening part 14. A plurality of pleated ridges 23 (two in the drawing) are formed on the peripheral surface of the waterproof portion 22, and the outer shape of the ridge 23 is a rectangle similar to the opening size of the opening 14. The outer dimension is larger than the opening dimension of the opening 14. Moreover, the cross-sectional shape of the said protrusion 23 becomes a shape which is easy to elastically deform, such as a triangle and a semicircle.

  In the drawing, the tip of the ridge 23 passes through the inner peripheral surface of the opening 14, but actually the tip of the ridge 23 is compressed and the inner peripheral surface of the opening 14 is compressed. It is in close contact with.

  When attaching the cable bush 13 to the portable radio main body 12, the connecting portion 21 is inserted into the opening portion 14, and the waterproof portion 22 at the base portion of the connecting portion 21 is fitted into the opening portion 14. After that, the screw 19 is inserted into the through hole 18 and screwed into the screw hole 15.

  At this time, since the outer dimension of the protrusion 23 is larger than the opening dimension of the opening 14, the protrusion 23 is compressed by the inner peripheral surface of the opening 14. It is tightly sealed to prevent water from entering the inside of the portable wireless device body 12 from between the contacted surface 12a of the portable wireless device body 12 and the contact surface 16d of the cable bush 13. it can.

  The waterproof structure by the waterproof portion 22 functions by the protrusion 23 compressed on the inner peripheral surface of the opening 14 being in close contact with the inner peripheral surface of the opening 14 by a repulsive force. The close contact portion of the ridge 23 with the inner peripheral surface of the opening 14 may have a triangular cross-section, a semicircular shape, or other shapes, and as shown in FIG. 23 may have a different shape and a different size for each protrusion.

  Further, if the opening shape of the opening portion 14 is circular, as shown in FIG. 7, the outer shape of the waterproof portion 22 is circular, and the shape of the waterproof portion 22 is a rectangular parallelepiped. It can be implemented similarly. Even when the opening 14 has a shape other than a rectangle or a circle, for example, an ellipse or a triangle, the outer shape of the waterproof portion 22 is changed to an ellipse or a triangle. Needless to say, this is applicable.

  Further, as shown in FIG. 8, by increasing the number of the protrusions 23 formed on the peripheral surface of the waterproof part 22, the contact portion between the protrusions 23 and the inner peripheral surface of the opening 14 increases. The waterproofing effect of the waterproof part 22 can be further improved.

  Furthermore, in the first embodiment, the repulsive force of the ridge 23 against the inner peripheral surface of the opening 14 increases as the outer dimension of the ridge 23 becomes larger than the opening dimension of the opening 14. Since it becomes large, the contact pressure of the said protrusion 23 and the said opening 14 inner peripheral surface increases, and can improve a waterproof effect more.

  Further, a metal cylindrical bush is press-fitted into the through-hole 18 drilled in the bush portion 16, and a metal nut or the like is embedded in the screw hole 15 of the portable radio device body 12. Even when the strength of the screw portion is increased and the resin of the bush portion 16 is deformed by heat, water does not enter from the through hole 18.

  Further, when the bush portion 16 and the cable portion 17 are made of the same material and the bush portion 16 and the cable portion 17 are integrated, the tensile strength of the cable portion 17 increases, and the cable portion 17 is pulled. Even so, the cable portion 17 is not pulled out from the bush portion 16.

  Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10, the same components as those in FIGS. 1 to 5 are denoted by the same reference numerals, and the description thereof is omitted.

  In the second embodiment, waterproofing is performed by using a waterproof ring 24 which is an airtight portion provided on the contact surface 16d in place of the waterproof portion 22 in the first embodiment.

  The waterproof ring 24 is an annular ridge fixed to the bush portion main body 16a with an appropriate elastic material, or an annular member integrally formed with the bush portion 16, and the connection portion 21 is the waterproof portion. The ring 24 is located at the center.

  Further, the opening size of the opening 14 is smaller than the inner circumference of the waterproof ring 24. In addition, the opening dimension of the said opening part 14 should just be smaller than the inner periphery circle | round | yen of the said waterproof ring 24 cross section, and circular, an ellipse, etc. may be sufficient.

  When the cable bush 13 is attached to the portable wireless device main body 12, the connecting portion 21 is inserted into the opening 14, and the waterproof ring 24 is pressed against the contacted surface 12a of the portable wireless device main body 12. In this state, the screw 19 is inserted into the through hole 18 and screwed into the screw hole 15 (see FIG. 1), and the bush portion main body 16a is fixed to the portable wireless device main body 12.

  At this time, the waterproof ring 24 is pressed and deformed by the abutted surface 12a of the portable radio main body 12 and the abutting surface 16d of the cable bush 13 to seal the opening 14 in a liquid-tight manner. Therefore, water does not enter the opening 14 from between the contacted surface 12a and the contact surface 16d.

  As shown in FIG. 11, the first embodiment and the second embodiment are combined, a waterproof portion 22 is provided at the base portion of the connection portion 21, and the waterproof ring is provided around the waterproof portion 22. Needless to say, the provision of the (or protrusion) 24 further increases the waterproofing effect between the portable wireless device body 12 and the cable bush 13.

  As described above, in the present invention, the waterproof portion 22 and the waterproof ring 24 are provided on the contact surface 16 d of the cable bush 13, and the protrusion 23 and the waterproof ring 24 are in contact with the portable wireless device body 12. This prevents water from entering the portable wireless device main body 12. Therefore, it is necessary to separately perform waterproofing processing such as sealing between the contacted surface 12a and the contact surface 16d with a waterproof tape. In addition, the amount of assembly work can be reduced.

(Appendix)
The present invention includes the following embodiments.

  (Appendix 1) A portable wireless device having a portable wireless device body and a cable bush, wherein the cable bush is integrated with the bush portion and the cable portion, and the portable wireless device body of the cable bush is integrated. When the cable bush is attached to the portable wireless device body, the protrusion contacts the portable wireless device body so that there is a gap between the portable wireless device body and the cable bush. A portable wireless device that is sealed in a liquid-tight manner.

  (Supplementary note 2) The portable wireless device according to supplementary note 1, wherein a through hole is formed in the bush portion, and the cable bush can be screwed to the portable wireless device body through the through hole.

  (Supplementary note 3) The portable wireless device according to supplementary note 1, wherein a direction of the protrusion is parallel to the contact surface.

  (Supplementary note 4) The portable wireless device according to supplementary note 3, wherein an annular protrusion is provided on the contact surface in a direction perpendicular to the contact surface, and the position where the annular protrusion is provided is outside the protrusion.

DESCRIPTION OF SYMBOLS 11 Portable radio | wireless machine 12 Portable radio | wireless machine main body 13 Cable bush 16 Bush part 17 Cable part 21 Connection part 22 Waterproof part 23 Projection 24 Waterproof ring

Claims (1)

  A portable radio having a portable radio main body and a cable bush, wherein the cable bush and the cable portion are integrated with the same material, and the cable bush is in contact with the portable radio main body. A protrusion is provided on the surface, and when the cable bushing is attached to the portable wireless device body, the protrusion contacts the portable wireless device body and seals between the portable wireless device body and the cable bush in a liquid-tight manner. A portable wireless device characterized by stopping.

Images