JPH04160616A - Composite terminal equipment - Google Patents

Abstract

PURPOSE:To operate a telephone key part even in the folded state of a display board of a lap top type terminal equipment and to immediately return an answer by connecting a body with the telephone key part through a shape memory alloy. CONSTITUTION:This composite terminal equipment is provided with a position detecting means for detecting the display board is positioned on a keyboard 3, a holding member 5 formed by the shape memory alloy to hold the keyboard 3 and a holding member heating means 6 for heating the member 5. When a call is terminated in the folded state of the display board 1 on a position A, the heater 6 is heated by the sense information of a projected part 7 to be a pressure sensor in the body 2 and the terminating call detecting information of a telephone control circuit. Thereby, the shape memory alloy member 5 is heated, one end of the member 5 connected to the telephone key part 3 is extended and the key part 3 is moved from a position C to a position D. Consequently, the keyboard 3 can be inserted/ejected in the folded state of the display board 1 and speaking can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a compound terminal device, and more particularly to a compound terminal device having a telephone key section.

[Conventional technology]

A conventional composite terminal device of this type will be explained with reference to the drawings. FIG. 3 is a side view of a conventional laptop-type composite terminal device.

A conventional laptop-type composite terminal device includes a display panel 11, a main body 12, and a telephone key part 13. The display plate 11 is rotatably supported on the main body 12 by a bearing 4, and is set by a user from position A to position B when in use. When not in use, return it to position A. Display boards include liquid crystal, plasma display,
and EL display. The main body 12 includes a PC (personal computer) section and a telephone section.

[Problem to be solved by the invention]

In the above-described conventional laptop-type composite terminal device, when not in use, the display board 11 is often kept in a folded state to save space. At this time, the surface of the telephone key part 13 is covered with the display board 11, and when a call is made to the terminal, the display board 11 must be raised to position B before responding, which is inconvenient in use. However, it also has the disadvantage that it takes time to respond.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multifunction terminal device in which a keyboard can be inserted and removed to make calls while the display board is folded.

[Means to solve the problem]

The composite terminal device of the present invention includes a keyboard, and a keyboard located on the keyboard to protect the keyboard when not in use.
In a compound terminal device comprising a display board that opens by rotating a predetermined angle during use, and a main body having a personal computer and a telephone circuit having at least means for detecting an incoming call, the display board is located on a keychain. A holding member made of a shape memory alloy for holding the keyboard, and a holding member heating means for heating the holding member.

〔Example〕

Next, the present invention will be explained with reference to the drawings. FIG. 1 is a side view of one embodiment of the present invention.

The laptop-type composite terminal device shown in FIG. 1 includes a liquid crystal display panel 1, a main body 2, a telephone key part 3, a shape memory alloy member 5, and a heating heater 6.

The liquid crystal display panel 1 is rotatably supported on the main body 2 by a bearing 4, and is set at position B when in use, and returned to position A and folded when not in use. The shape memory alloy member 5 has one end connected to the telephone key part 3 and the other end fixed to the main body 2, and has a function of moving the telephone key part 3 back and forth. There is. Further, the heating heater 6 is provided inside the main body 2 and heats the shape memory alloy member 5. The heating heater 6 is designed to generate heat under the following conditions. A pressure sensor (not shown) in the main body 2 senses the protrusion 7 when the liquid crystal display panel 1 reaches the position A and is folded.

Further, when a call comes in, a telephone control circuit (not shown) inside the main body 2 detects the incoming call signal. Therefore, the heating heater 6 generates heat only when the above-mentioned pressure sensor detects that the liquid crystal display panel 1 is folded and an incoming call signal is detected, and stops generating heat when the call ends. ing. Further, the heating heater 6 has a positive resistance value, is kept at a constant temperature, and does not reach a higher temperature than necessary.

Next, the operation of the laptop-type composite terminal device of the present invention will be explained. As mentioned above, when the user returns the LCD panel 1 to the position A and there is an incoming call, the information detected by the protrusion 7 of the pressure sensor inside the main body 2 and the telephone control circuit are transmitted. The heating heater 6 is caused to generate heat based on the incoming call detection information. Thereby, the shape memory alloy member 5 is heated, and one end connected to the telephone key part 3 is expanded. Therefore, the telephone key part 3 moves from position C to position D. Therefore, the user must operate the phone key 3 to wake up the liquid crystal display panel 1.
You can respond by operating. Here, the elongated length of the shape memory alloy member 5 is determined and the optimum length is memorized. When the user finishes the call, the heating heater 6 stops, and the shape memory alloy member 5 cools down and returns to its original length.
The telephone key part 3 returns to position C again. Note that the shape memory alloy member in this example includes the well-known T1Ni, Cu-
An alloy such as Zn-Al or Cu-Al-Ni may be used. Furthermore, although this embodiment describes the case of a liquid crystal display panel, a plasma display or an EL display may also be used.

〔Effect of the invention〕

As explained above, the present invention connects the main body and part of the telephone key using a shape memory alloy, so that even when the display panel of a laptop-shaped composite terminal device is folded down, it can be quickly used for telephone use. There is an effect that allows you to respond by operating a part of the key.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is a side view of a conventional laptop-type composite terminal device. 1, ] 1... Display board, 2, 12... Main body, 3, 13
... Phone key part, 4, 14... Bearing part, 5...
Shape memory alloy member, 6... Heating heater, 7... Projection.

Claims (1)

[Claims] A keyboard, a display board located on the keyboard to protect the keyboard when not in use and opened by rotating at a predetermined angle when in use, and a main body having a personal computer and a telephone circuit having at least an incoming signal detection means. A composite terminal device comprising: a position detection means for detecting that the display board is located on the keyboard; a holding member formed of a shape memory alloy for holding the keyboard; and heating the holding member. and a holding member heating means, the holding member heating means is controlled by detection information outputted by the position detecting means and the incoming signal detecting means, and when heated to a predetermined temperature, the holding member expands and the above-mentioned A multifunction terminal device characterized in that a keyboard is pushed out from under the display board to answer an incoming call without opening the display board.