JP2001345902A - Foldable portable terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure, with which LCD driving is not performed until surely opening the casing of a foldable portable terminal equipment, further, the opening angle of the casing can be set and an opening state can be surely detected at that angle. SOLUTION: In the foldable portable terminal equipment integrally configured by linking divided two casings ((a) and (b)) through a turning part (g) so as to freely turn, on the back side of the matching face of two casings, an opening/ closing detecting part (c) is located for detecting opening/closing of the casings.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication device such as a portable telephone, a portable radio, a PHS, a transceiver, and a cordless telephone. The present invention relates to an opening / closing detection structure of a foldable portable terminal device which is integrally rotatably formed by, for example, the above.

[0002]

2. Description of the Related Art A conventional foldable portable terminal device is used when the device is not normally used and the device is folded and the housing is closed, and when the device is used during a call or communication, the device is opened and used. To detect the opening and closing of the device, FIGS.
2. Description of the Related Art An apparatus as shown in FIG. Here, FIGS. 3 and 4 show one foldable portable telephone of a conventional foldable portable terminal device. FIG. 3 (3-1) is a schematic perspective view of the opened device, and FIG. 3 (3-2) is an internal sectional view of the closed device. FIG. 4 (4-1) is a schematic perspective view of the opened device, and FIG. 4 (4-2) is an internal cross-sectional view of a main part of the closed device. FIG. 2 is a side view of the foldable portable terminal device according to the present invention in a slightly opened state, and the same applies to a conventional foldable portable terminal device.

FIG. 3 shows an example of a conventional foldable portable terminal device, in which a reed switch (magnetic switch) C1 is disposed on a board B1 provided in one housing A1 and another housing D1. When the two casings are folded, the reed switch (magnetic switch) C1 detects the approaching magnet E1 and operates when the two housings are folded.
FIG. 4 shows another example of the conventional foldable portable terminal device, in which a protruding convex portion F is provided on the housing mating surface of one housing A2, and is provided on the housing mating surface of the other housing D2. Is provided with a hole G, the position of the protruding projection F and the position of the hole G correspond to each other, and a switch H is provided in the corresponding position. The unit F presses the switch H, and detects opening and closing of the housing.

[0004]

However, when using the conventional apparatus as shown in FIGS. 3 and 4, when the conventional apparatus is not completely folded (slightly open) as shown in FIG. Since the operation for detecting the open / close state is not performed, it is not determined that the state is the closed state. Therefore, when the LCD has a function of turning off the LCD when folded and closed, it is determined that the LCD is still open even if it is slightly half-open as shown in FIG.
Since D is lit, there is a problem that a large amount of current flows unnecessarily and the amount of battery consumption increases.
The present invention has been made in view of the above points, and does not drive the LCD until the housing is opened, and furthermore, the opening angle of the housing can be set. An object of the present invention is to provide a foldable portable terminal device having a structure capable of detecting the foldable portable terminal device.

[0005]

In order to solve the above-mentioned problems, in the foldable portable terminal device of the present invention, two divided housings (a, d) are rotated via a rotating portion g. In the foldable portable terminal device which is freely connected and integrally formed, an opening / closing detection unit c for detecting opening / closing of the housing is provided on the back side of the mating surface of the two housings. Further, the open / close detecting unit c is provided at the rear end face (a1, d) of the housing (a, d).
1) It was arranged at or near it. Further, one of the two housings (a, d) is provided with an open / close detection unit c, and the other housing is provided with a detection auxiliary unit f. And the housing (a, d)
A stopper e for regulating the opening angle of the housing is provided on one or both of the two. In addition, the stopper e has a detection assisting portion f.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a foldable mobile communication terminal according to an embodiment of the present invention; FIG. 1 is a view showing an embodiment of a foldable portable terminal device according to the present invention, and FIG. 1 (1-1) is a schematic explanatory view seen from the back side of the opened device. () Is an enlarged explanatory view of the main part. FIG. 2 is a side view of the foldable portable terminal device according to the present invention in a slightly opened state.

As shown in FIG. 1, the foldable portable terminal device of the present invention has a casing divided into two parts, a first casing a and a second casing a.
And is integrally formed by being rotatably connected via a rotating portion g by a hinge mechanism or the like. In addition to this configuration, an opening / closing detection unit c that detects opening / closing of the housing is provided on the back side of the mating surface (a2, d2) when the two housings are folded. The opening / closing detection unit c includes a housing (a,
It is preferable that the housing opening / closing detection unit c is operated and provided with an opening / closing switch, which is more practical and convenient.

In the conventional apparatus as shown in FIGS. 3 and 4, the location for detecting the opening and closing of the casing is arranged on the mating surface when the two casings are closed, so that it is shown in FIG. When the housing opening angle θ is small, no open / closed detection is performed. That is, in the state of not being completely folded, the state of being half-opened, or the state of being slightly opened, since the opening / closing is not detected, the next operation is not performed.
It was detected as closed only when the mating surface of the housing was closed almost exactly. The point of the present invention is that an opening / closing detection unit c for detecting the opening / closing of the housing is disposed on the back side of the mating surface (a2, d2), so that even when the opening angle of the housing becomes large. This makes it possible to accurately detect the open state, and to accurately measure the opening angle of the housing. The open / close detection unit c may be singular or plural, and may be configured by applying a known technique capable of detecting the open / close of the housing.

The housing a has a rear-side mating end surface a1 on the side of the rotating portion g behind the mating surface a2, and the housing d has a mating surface d2.
It is preferable to have a back-to-back end face d1 on the side of the rotating part g on the back side, and to provide an open / close detection section c at or near these back-to-face end faces (a1, d1). The back-to-back end face a1 and the back-to-back end face d1 approach each other when the housing is opened, but they can also be brought into contact. The opening / closing detection unit c is preferably installed at a location close to the rotation unit g.
It is convenient for product design and detection performance is also improved.

Further, an open / close detection unit c is provided in one of the two housings (a, d), and a detection auxiliary unit f is provided in the other housing, and the open / close detection unit c is provided with the detection auxiliary unit f. The detection accuracy will be improved if the recognition and detection are performed without fail. Detection auxiliary unit f
Is preferably provided on the back surface mating end surface d1 of the housing d or the back surface mating surface end surface a1 of the housing a. Simple structure and easy to detect.

Then, a stopper e for regulating the opening angle θ of the housing is provided on one or both of the housings (a, d). The stopper e prevents the two casings from opening beyond a certain angle. Here, the maximum opening angle of the casings can be set. The stopper e is preferably provided on the back surface mating end surface d1 of the housing d or the back mating surface end surface a1 of the housing a, and may be provided on one or both of the housings. It may be singular or plural.
The stopper e shown in FIG. 1 is provided so as to protrude from the back face mating end face d1 of the lower case d, and comes into contact with the back face mating end face a1 of the upper case a. At this time, if the contact surface of the stopper e is formed to have a shape conforming to the end face da1 of the back mating surface, a stable and stable contact structure between the surfaces can be obtained.

In addition, if this stopper e is provided integrally with the detection assisting portion f, the structure becomes more stable and the performance is improved. At this time, the opening / closing detection unit c is installed in the housing a on the side of the rear-surface mating end surface a1 of the upper housing a, and detects and detects the detection auxiliary unit f on the stopper e at the corresponding position. The detection auxiliary unit f is a lower housing d.
The rear end face a1 of the upper housing a is provided with a hole having a hole through which the protruding detection auxiliary part f can be passed. It is preferable that the opening / closing detection unit c can easily detect the detection auxiliary unit f. In applying the open / close detection unit c, the stopper e, the detection auxiliary unit f, and the like to the folding portable terminal device, a well-known technique may be appropriately selected and designed.

[0013]

As described above, according to the present invention, the following excellent effects are exhibited. In the foldable portable terminal device, the opening / closing of the housing can be reliably detected, and even if the device has a function of turning off the LCD, for example, it is not determined that the half-open state is opened as in the related art. Therefore, an efficient and excellent foldable portable terminal device can be provided without causing unnecessary current flow. -The opening angle of the housing can be freely set, and a structure that can reliably detect the opening angle has been provided, so that a highly energy-efficient, convenient and highly reliable product can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a foldable portable terminal device according to the present invention, and FIG. 1 (1-1) is an outline explanatory diagram viewed from the back side of an opened device, and FIG. 2) is an enlarged explanatory view of the main part.

FIG. 2 is a side view of the foldable portable terminal device according to the present invention in a slightly opened state.

FIG. 3 is a conventional foldable portable terminal device, and FIG.
(3-1) is an external perspective view of the opened device, and FIG. 3 (3-2).
FIG. 2 is an internal sectional view of a main part of the closed device.

FIG. 4 shows a conventional foldable portable terminal device, and FIG.
1) is an external perspective view of the opened apparatus, and FIG. 4 (4-2) is an internal cross-sectional view of a main part of the closed apparatus.

[Explanation of symbols]

 a, d Housing g Rotating part c Open / close detection part a1, a1 Back-facing end face f Detection auxiliary part e Stopper θ Housing opening angle

Claims (5)

[Claims] 1. A foldable portable terminal device in which two divided housings are rotatably connected via a rotation unit and are integrally formed, wherein a back surface of a mating surface between the two housings is provided.
A foldable portable terminal device provided with an open / close detection unit for detecting opening / closing of a housing. 2. The foldable portable terminal device according to claim 1, wherein the open / close detection unit is disposed at or near a rear end face of the housing. 3. The foldable portable terminal device according to claim 2, wherein the open / close detection unit is provided in one of the two housings, and the detection auxiliary unit is provided in the other housing. Foldable portable terminal device. 4. The foldable mobile terminal device according to claim 2, wherein a stopper for regulating an opening angle of the housing is provided on one or both of the housings. . 5. The foldable portable terminal device according to claim 4, wherein the stopper has the detection assisting unit.