JP2007028250A - Speaker microphone connection cable fixing arrangement for portable radio device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker microphone connection cable fixing arrangement for a portable radio device capable of easily fixing a speaker microphone connection cable to the portable radio device without using any tools, while having no enlarged projection from the body of the portable radio device. <P>SOLUTION: In the fixing arrangement, a slide lock 6 supported sliding free and energized with a spring 7 is provided near one side of a body side connector 1a arranged at a body 1 of a portable radio device, wherein a cable side connector 3a is inserted and fixed to the body side connector 1a. A hook 5 is provided near the another side of the body side connector 1a. A stem 4 engaged to the hook 5 and a claw 3b engaged and fixed to the slide lock 6 are provided at a connector body 3. When the stem 4 is engaged and fixed to the hook 5 and a connector body 1 is rotated around the stem 4, the claw 3b pushes the slide lock 6. While the claw 3b returns to the original position and the slide lock 6 carries out engaging of the claw 3b after the slide lock 6 resists elasticity of the spring 7 and retreats, the cable side connector 3a is inserted and fixed to the body side connector 1a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable wireless device, and more particularly to a speaker microphone connection cable fixing device.

  An example of a conventional speaker microphone connection cable fixing device of a portable wireless device will be described with reference to FIG. The wireless device main body 1 shown in FIG. 5 is provided with a main body side connector 1a, a depression 1b is formed below the main body side connector 1a, and a screw hole 1c is provided above the main body side connector 1a.

  A connector body 10 is connected to a cable 2 connected to a speaker and a microphone. The connector body 10 holds a cable-side connector 10a connected to the cable 2, and an L-shaped claw 10b is provided at the tip thereof. ing.

  In order to fix the connector body 10 to the radio main body 1, first, the claw 10 b of the connector body 10 is inserted into the recess 1 b of the radio main body 1 and the claw 10 b is locked to the radio main body 1. Next, the connector body 10 is rotated to the radio main body 1 side with the engaging portion of the claw 10b as the rotation center, and the cable side connector 10a is fitted to the main body side connector 1a.

  In this state, the fixing screw 11 attached to the connector body 10 is screwed into the screw hole 1c of the wireless device main body 1 with the driver 13, and the connector body 10 is fixed to the wireless device main body 1 with the claw 10b and the fixing screw 11. When the connector body 10 is removed from the wireless device main body 1, the fixing screw 11 is turned with a screwdriver 13 to be separated from the screw hole 1c.

  The conventional speaker / microphone connection cable fixing device has a drawback in that it takes time because an operation of tightening a screw is required to fix the connector body 10. In addition, a tool for tightening the screw was necessary.

  In the conventional speaker microphone connection cable fixing device shown in FIG. 6, the fixing screw 11 in the connection cable fixing device shown in FIG. 5 is replaced with a fixing screw 12 having a large screw head.

  In this example, it is possible to tighten the fixing screw 12 without using a tool by manually turning the screw head without a tool, but the screw head of the fixing screw 12 becomes a large protrusion from the radio main body, which becomes an obstacle. Or it was caught or damaged by other things. And there was a problem that it took time to fix the connector body 10 similarly to what was shown in FIG.

When applying the idea proposed for the microfilm of Japanese Utility Model Publication No.57-115289 to the speaker microphone connection cable fixing device of a portable wireless device, a cord bush provided integrally with the cord in addition to the connector is fastened to the device body with a screw. It must be worn, takes time to fix, and adds protrusions in addition to the connector.
Japanese Utility Model Publication No. 57-115289 microfilm, specification, page 2, FIG.

  The present invention has been made in view of the above points. The object of the present invention is to easily fix the speaker microphone connection cable to the portable wireless device without using a tool, and to project the protrusion from the wireless device main body. An object of the present invention is to provide a speaker microphone connection cable fixing device for a portable wireless device that does not increase the size of the portable wireless device.

  The speaker microphone connection cable fixing device of the portable wireless device according to the present invention is connected to the speaker microphone connection of the portable wireless device that fixes the connector body holding the cable-side connector connected to the speaker microphone connection cable of the portable wireless device to the portable wireless device body. In the cable fixing device, provided is a slide lock that is slidably supported and urged by a spring in the vicinity of one side of the main body side connector that is provided in the main body of the portable radio device and to which the cable side connector is fitted, A hook is provided in the vicinity of the other side of the main body side connector, a shaft that engages with the hook and a claw that is engaged with the slide lock are provided on the connector body, and the shaft is engaged with the hook to By rotating the connector body about the axis, the claw pushes the slide lock and slides the slide body. Click is what the cable connector along with the slide lock to return to the original after retracted against the elastic force of the spring is engaged the pawl is configured to be fitted to the main body side connector.

  Further, in the speaker microphone connection cable fixing device of the portable wireless device, at least one of the abutting portions between the slide lock and the claw has an R shape or a taper shape.

  In the speaker microphone connection cable fixing device of each portable wireless device, the spring for urging the slide lock is any one of a coil spring, a torsion coil spring, and a leaf spring.

  Further, in the speaker microphone connection cable fixing device of each portable wireless device, packing is attached to the connector body so as to surround the cable-side connector.

  According to the speaker microphone connection cable fixing device of the portable wireless device of the present invention, the speaker microphone connection cable can be easily fixed to the portable wireless device without using a tool, and the protrusion from the wireless device main body is not enlarged. .

  The best mode for carrying out the present invention will be described below with reference to examples. FIG. 1A is an exploded perspective view showing a speaker microphone connection cable fixing device for a portable wireless device according to an embodiment of the present invention, FIG. 1B is an enlarged view of a portion B in FIG. 1A, and FIG. ) Is an enlarged view of a portion C in FIG.

  The wireless device main body 1 shown in the figure is provided with a main body side connector 1a, a depression 1b is formed below the main body side connector 1a, and a hook 5 is formed above the main body side connector 1a. As shown in detail in FIG. 1 (b), the recess 1b is wide at the top and the back, and the coil spring 7 is first inserted into the recess 1b, and the slide lock 6 is inserted thereon.

  The base portion 6b of the slide lock 6 is fitted into the wide portion of the recess 1b, and the slide lock 6 is urged upward by the coil spring 7. A portion of the distal end portion of the slide lock 6 that appears outside the radio device main body 1 has an R shape.

  A connector body 3 is connected to a cable 2 connected to a speaker and a microphone. The connector body 3 holds a cable-side connector 3a connected to the cable 2, and an L-shaped claw 3b is provided at the tip thereof. ing. The outer end of the claw 3b forms an R-shaped contact portion 3c. A boss provided at the base end portion of the connector body 3 supports the shaft 4 in a both-supported state.

  In order to fix the connector body 3 to the radio main body 1, first, in a state in which the shaft 4 of the connector body 3 is fitted to the hook 5 of the radio main body 1, the connector body 3 is pivoted about the shaft 4 as a rotation center. The cable side connector 3a is fitted to the main body side connector 1a by rotating to the main body 1 side.

  At that time, the tip of the slide lock 6 is pushed by the abutting portion 3c of the claw 3b, and the slide lock 6 once moves downward in FIG. The claw 3b of the return connector body 3 is locked.

  The connector body 3 is fixed to the radio main body 1 with a slide lock 6 and a hook 5. When removing the connector body 3 from the radio main body 1, the slide lock 6 is moved downward with a finger, the claw 3 b is unlocked and the connector body 3 is rotated around the axis 4 to be detached from the radio main body 1. .

  As described above, in the speaker microphone connection cable fixing device of the portable wireless device according to the embodiment, the connector connected to the speaker microphone connection cable can be attached to and detached from the wireless device body with one touch, but the stress applied to the connector fixing portion is also reduced. Smaller than the conventional one.

  The stress applied to the conventional speaker microphone connecting cable fixing device will be described with reference to FIG. FIG. 2A shows a conventional one, and FIG. 2B shows an example. The bending moment of the fixing screw 11 and the shaft 4 when the force of P is applied to the force point R in the inclination direction of 45 ° with respect to the surface of the main body of the radio when the pulling force of F is applied to the cable 2 in the direction of the arrow. Calculate

In addition, the bending moment is not applied to the fulcrum S supported by the claws. A force of (1 / √2) P is applied to the seating surface of the fixing screw 11 as a force for generating a bending moment. Assuming that the length L1 to receive the bending moment of the fixing screw 11, the maximum bending moment is M1 = L1 × (1 / √2) P.

If the span of the shaft 4 is L2 and a uniform distributed load acts on the shaft 4 in the length direction, the maximum bending moment is M2 = L2 × (1/8) × P. When L1 = L2, M2 = 0.176M1, and the bending moment applied to the shaft 4 is significantly smaller than the bending moment applied to the conventional fixing screw. Thus, since the cable fixing device of the embodiment only takes a small bending moment, the connector body can be firmly fixed.

  FIG. 3 shows an example of a specific configuration of the hook 5 of the embodiment. FIG. 3A shows a hook portion having a shape when the hook 5a is integrally formed with the chassis. FIG. 3B shows a shape in which the hook 5b is formed of a sheet metal and is fastened to the chassis with a screw 8. FIG. FIG. 3C shows a shape when the hook 5 c is formed integrally with the base and fastened to the chassis with the screws 8. Thus, the hook can be formed by various methods.

  FIG. 4 shows the shape of the packing when the connector is waterproofed with the packing. When this square-shaped packing 9 is stuck around the cable-side connector 3a of the connector body 3, the connector body 1 of the embodiment can be firmly fixed to the wireless device main body 1, so that high waterproof performance can be obtained.

  The embodiment is configured as described above. However, the invention is not limited to this, and for example, one or both of the connector body pawl and the slide lock tip may be tapered. Further, the slide lock may be biased by a torsion coil spring or a leaf spring instead of being biased by the coil spring.

FIG. 1A is an exploded perspective view showing a speaker microphone connection cable fixing device for a portable wireless device according to an embodiment of the present invention, FIG. 1B is an enlarged view of a portion B in FIG. 1A, and FIG. ) Is an enlarged view of a portion C in FIG. FIG. 2A is a side view for explaining the operation of the conventional speaker microphone connection cable fixing device of the portable wireless device, and FIG. 2B is the operation of the speaker microphone connection cable fixing device of the portable wireless device of this embodiment. It is a side view for demonstrating. FIG. 3A is a perspective view showing an example of a hook used in the speaker microphone connection cable fixing device of the portable wireless device according to the embodiment of the present invention, and FIG. 3B is a perspective view showing another example of the hook. FIG. 3C is a perspective view showing still another example of the hook. It is a perspective view which shows the packing used for the speaker microphone connection cable fixing device of the portable radio | wireless machine which is an Example of this invention. It is a perspective view which shows the prior art example of the speaker microphone connection cable fixing device of a portable radio. It is a perspective view which shows the other conventional example of the speaker microphone connection cable fixing device of a portable radio | wireless machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radio | wireless machine main body, 1a Main body side connector, 1b Indentation, 1c Screw hole 2 Cable 3 Connector body, 3a Cable side connector, 3b Claw, 3c Contact part 4 Axis 5 Hook 6 Slide lock, 6a Locking part, 6b Base part 7 Coil spring 8 Screw 9 Packing 10 Connector body, 10a Cable side connector, 10b Claw 11 Fixing screw 12 Fixing screw 13 Driver

Claims (4)

A speaker microphone connection cable fixing device for a portable wireless device that fixes a connector body that holds a cable-side connector connected to a speaker microphone connection cable of a portable wireless device to the portable wireless device main body. A slide lock that is slidably supported and urged by a spring is provided in the vicinity of one side of the main body side connector to which the side connector is fitted, and a hook is provided in the vicinity of the other side of the main body side connector; The connector body is provided with a shaft that engages with the hook and a claw that is engaged with the slide lock, and the claw is secured by rotating the connector body about the axis by engaging the shaft with the hook. After the slide lock is pushed and the slide lock is retracted against the elasticity of the spring, the slide lock returns to the original position and the slide lock Configuration the portable wireless device of the speaker microphone connecting cable fixing device so that the cable connector with locking the tight is fitted to the main body side connector. 2. The speaker microphone connection cable fixing device for a portable radio according to claim 1, wherein at least one of the abutting portions between the slide lock and the claw is R-shaped or tapered. The speaker microphone connection cable fixing device for a portable radio according to claim 1 or 2, wherein the spring for urging the slide lock is one of a coil spring, a torsion coil spring, and a leaf spring. The speaker microphone connection cable fixing device for a portable wireless device according to any one of claims 1 to 3, wherein a packing is attached to the connector body so as to surround the cable side connector.

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