JP2005318127A - Mobile type communication terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain a mobile type communication terminal in an excellent telephone call condition by preventing a sound hole from completely being closed during speech as much as possible. <P>SOLUTION: This mobile type communication terminal device has a microphone for speech communication in a case 1 and the sound hole 2 is bored in the case 1 to pick up a voice spoken outside the case 1. A projection part 4 is provided nearby the sound hole 2 while leaving a non-projection part 3 and even when a finger is put on the sound hole 2 from immediately above, the projection part 4 obstructs not to directly close the sound hole. The projection part 4 does not surround the whole circumference of the sound hole 2 and the non-projection part 3 is set, so the sound hole 2 is not completely closed because the non-projection part 3 is open to the outside even if the finger is put between tops of projection parts 4, so that there is no hindrance to a speech communication. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable communication terminal device.

As a portable communication terminal device incorporating a microphone, for example, a mobile phone described in Patent Document 1 is known. In this conventional example, a sound hole is perforated in the case so that sound outside the case can be satisfactorily transmitted to the microphone housed in the case of the mobile phone.
JP-A-11-177664

  However, in general, the microphone and sound hole are located close to the mouth with the mobile phone in hand, and this vicinity often serves as a grip when operating the mobile phone. The sound hole in the conventional example in which only a hole is made is often completely blocked by a finger or the like during a call, and there is a problem in that the call is likely to be hindered.

  The present invention has been made to solve the above drawbacks, and is a portable communication terminal device capable of preventing the sound hole from being completely blocked during a call as much as possible and maintaining a good call state. For the purpose of provision.

A portable communication terminal device such as a cellular phone has a microphone for calling in the case 1, and a sound hole 2 is drilled in the case 1 in order to pick up a voice spoken outside the case 1.
In the present invention in which the protrusion 4 is provided in the vicinity of the sound hole 2 while leaving the non-projection 3, even if the sound hole 2 is pressed by a finger, the sound hole 2 is obstructed by the protrusion 4. It cannot be blocked directly. Further, since the protrusion 4 does not surround the entire circumference of the sound hole 2 and the non-protruding portion 3 is set, the protrusion 4 does not protrude even when a finger is placed between the tops of the protrusion 4. Since the portion 3 is open to the outside, the sound hole 2 is not completely blocked, and does not hinder the call.

  In the present invention, it is possible to prevent the sound hole from being completely blocked during a call as much as possible, so that a good call state can be maintained.

  FIG. 1 shows an embodiment of the present invention configured as a mobile phone. In this embodiment, the mobile phone is formed by connecting the first and second cases 1A and 1B through the hinge portion 7 so as to be rotatable, and the liquid crystal display portion held by the first case 1A when not in use. 8 and the operation surface of the second case 1B can be folded so as to face each other.

  FIG. 2 shows an operation surface of the second case 1B. In the second case 1B, a plurality of key tops 9, 9... Are arranged, and a fingerprint authentication unit 10 is arranged. In addition, the liquid crystal display portion 8 of the first case 1A and the key top 9 of the second case 1B are directly connected to the left and right sides of the lower (rotating end) of the operation surface of the second case 1B when the first case 1A is folded. The bumper pad 6 is protruded in order to prevent contact and absorb the impact during the folding operation.

  Furthermore, a sound hole 2 is formed in the operation surface of the second case 1B for transmitting sound outside the case 1B to the microphone accommodated in the second case 1B. As shown in FIG. 2A, the sound hole 2 is disposed at a position shifted from the center of the width so as to be close to one bumper pad 6.

  Further, a protrusion 4 is formed on the side of the sound hole 2 by expanding the surface of the case 1B. In this embodiment in which the sound hole 2 and the bumper pad 6 are arranged in the vertical direction, the protrusions 4 are arranged on both the left and right sides of the sound hole 2.

  Therefore, in this embodiment, even if the finger comes to a position where the sound hole 2 is closed when talking while holding the second case 1B, as shown in FIGS. Rides on the bumper pad 6 and the protrusion 4. As a result, a gap 11 communicating with the outside is formed between the finger and the sound hole 2, so that a call can be made without blocking voice or the like.

  In FIG. 2, the sound holes 2 are arranged in the vertical direction with respect to the bumper pad 6, but the position of the sound holes 2 can be appropriately changed as long as it is around the bumper pad 6. Further, the distance between the bumper pad 6 and the sound hole 2 is appropriately determined so that a gap 11 is formed between the bumper pad 6 and the finger in consideration of the size or height of the bumper pad 6.

  The modification of the sound hole 2 and the protrusion 4 is shown below in FIG. In this modification, the sound hole 2 is formed in a groove-like recess 5 formed in the operation surface of the second case 1B. The sound hole 2 is formed in a position and size that occupies a part of the recess 5 in a front view, and the remaining area is used as a space for generating a gap.

The protrusion 4 bulges around the recess 5, and in this modified example, the protrusion 4 is formed at two longitudinal side edges of the recess 5 in order to make the short portion non-projecting 3.
Therefore, in this modified example, even if a finger comes to a position where the sound hole 2 is blocked and straddles between the protrusions 4, the non-protrusion part 3 forms a gap through which the voice passes, so that there is no hindrance to the call.

  In addition, although the case where the sound hole 2 is provided in the vicinity of the bumper pad 6 has been described above, when the gap 11 can be sufficiently secured without the help of the bumper pad 6, the sound hole 2 is disposed at a position completely independent of the bumper pad 6. It is also possible.

It is a perspective view showing the present invention. It is a figure which shows the detail of FIG. 1, (a) is a front view of a 2nd case, (b) is the 2B part enlarged view of (a). FIG. 3 is a diagram showing details of FIG. 1, (a) is a sectional view taken along line 3A-3A in FIG. 2 (b), (b) is a sectional view taken along line 3B-3B in FIG. 2 (b), and (c) is (a). FIG. 4D is a cross-sectional view taken along line 3D-3D in FIG. 3C of FIG. 3C, and FIG. 3E is a cross-sectional view taken along line 3E-3E in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Sound hole 3 Non-protruding part 4 Protruding part 5 Recessed part 6 Bumper pad

Claims (3)

A portable communication terminal device having a sound hole for guiding sound outside the case to a microphone inside the case,
A portable communication terminal device in which a protrusion is provided in the vicinity of the sound hole, leaving a non-protrusion. The sound hole is opened in a partial region in a recess formed on the outer surface of the case,
And the portable communication terminal device which provided the protrusion in the periphery of the recessed part leaving the non-protrusion part. It is formed by connecting the first and second cases in a foldable manner,
The portable communication terminal device according to claim 1, wherein the sound hole is disposed in the vicinity of a bumper pad that absorbs an impact when the case is folded.