JPH06284174A - Folding telephone set - Google Patents

Abstract

PURPOSE:To miniaturize constitution and to reduce cost by preventing any projecting object from being generated at an upper main body and a lower main body to disturb speaking operations. CONSTITUTION:An inner cylinder 7, which outer peripheral face is contacted with the inner wall of an outer cylinder 4, installed so as to be rotated integrally with a lower main body 2 and formed by an elastic object, for which a linear spring 8 is embedded inside, is provided between a fixed holding part 5 and a movable holding part 6, turn contacts 14 and 14A are formed for a prescribed length in a rotating direction on the outer periphery of the inner cylinder 7 and inside an upper main body 1, fixed contacts 16 and 16A to be contacted through the outer cylinder 4 to the turn contacts 14 and 14A within the prescribed turn areas of these contacts are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable telephone in which an upper body is opened with respect to a lower body during a call.

[0002]

2. Description of the Prior Art FIGS.
FIG. 1 is a front view and a cross-sectional view showing a conventional foldable telephone shown in Japanese Patent Publication No. 45-45, in which 1 is an upper body which constitutes a handset to be held by a hand during a call, 2 is a lower body which constitutes a transmitter, Reference numeral 31 is a hook button installed on the upper body 1.

Further, 32 is a micro switch installed below the hook button 31, 33 is installed in the lower main body 2, and when the upper main body 1 and the lower main body 2 are closed, the hook button 31 is pushed to turn on the micro switch 32. It is a projection for pressing the button to activate it.

Next, the operation will be described. When the upper body 1 and the lower body 2 are closed, the button pressing protrusion 33 provided on the lower body 2 pushes down the hook button 31 provided on the opposing upper body 1. As a result, the micro switch 32 fixed below the hook button 31 of the upper body 1 is turned off.

On the other hand, when the upper body 1 and the lower body 2 are open, the projection 33 for pressing the button separates from the hook button 31 to release the pressing force of the micro switch 32,
It is in the on state, that is, in the call enabled state.

[0006]

Since the conventional foldable telephone is constructed as described above, the projection 33 becomes an obstacle to the operation when making a call, and a switch mechanism is provided in the upper main body 1. Since the hook button 31 and the micro switch 32 are provided, there is a problem that the main body of the telephone cannot be downsized.

The invention of claim 1 has been made to solve the above-mentioned problems, and it is possible to connect the switch mechanism between the upper body and the lower body without providing protrusions on the upper body and the lower body. It is an object of the present invention to provide a foldable telephone that can be smoothly operated and can be miniaturized by being configured in the installation portion.

According to the second aspect of the present invention, by providing the switch mechanism on the side surface of the inner cylinder near the center of rotation, it is possible to prevent protrusions from appearing on the lower main body and prevent various operations during a call from being folded. The purpose is to obtain a mobile phone.

According to the third aspect of the present invention, a switch function for turning on and off the micro operation is provided by using a linear spring for energy storage that urges the upper body to open against the lower body by utilizing repulsive force. The purpose is to obtain a folding phone that can.

[0010]

According to a first aspect of the present invention, there is provided a foldable telephone set, wherein an outer cylinder is provided at a center of rotation in which a lower body is connected to an upper body, and the upper body or the outer cylinder. A fixed holding part fixed to the lower main body, a movable holding part fixed to the lower body, and an outer peripheral surface of the inner wall of the outer cylinder contacting the fixed holding part and the movable holding part, and the lower part. An inner cylinder formed of a viscoelastic body in which a linear spring is embedded is installed so as to rotate integrally with the main body, and is rotated by a predetermined length in the rotation direction on the outer circumference of the inner cylinder. A contact is formed, and a fixed contact that penetrates the outer cylinder and comes into contact with the rotating contact within a predetermined rotating region of the rotating body is provided in the upper body, and the fixed contact is always rotated by a spring. It is designed to be pressed against.

The folding type telephone according to the invention of claim 2 is provided with an arcuate rotary contact on the side surface of the inner cylinder end, and the upper body is fixed so as to come into contact with the rotary contact within a predetermined rotary area thereof. It is provided with contacts.

In the foldable telephone according to the invention of claim 3, at least two linear springs embedded in the inner cylinder serve as contacts for turning on and off the operation of the microphone of the lower body.

[0013]

In the foldable telephone according to the invention of claim 1, the fixed contact on the upper body side is closed with respect to the rotating contact on the inner cylinder which is rotated by the rotation of the lower body. The contacts are not contacted when they are opened, while they are contacted when they are opened, and the contacts of these contacts are housed in the connection part of the center of rotation so that the switch protrusions on the upper and lower bodies are eliminated. It also makes it possible to reduce the size of the telephone body.

In the foldable telephone according to the invention of claim 2, the fixed contact on the upper body is brought into contact with the rotary contact provided on the side surface of the end portion of the inner cylinder to easily switch the desired microphone circuit. This makes it possible to eliminate the switch protrusion in the upper body and realize the downsizing of the telephone body.

In the folding type telephone according to the invention of claim 3, the switch of the desired microphone circuit is realized more simply and inexpensively by utilizing the linear spring provided inside the inner cylinder, and thus the upper main body. Remove the switch protrusion in
It also makes it possible to reduce the size of the telephone body.

[0016]

EXAMPLES Example 1. Hereinafter, an embodiment of the invention of claim 1 will be described with reference to the drawings. In FIG. 1, 1 is an upper body that constitutes a receiver, 2 is a lower body that constitutes a transmitter, 3 is a rotation center of the upper body 1 and the lower body 2, and 4 is a rotation center 3 of the upper body 1. It is the outer cylinder.

Further, 5 is a fixed holding portion, 6 is a movable holding portion,
Reference numeral 7 denotes an inner cylinder which is formed between the fixed holding portion 5 and the movable holding portion 6 by a viscoelastic body, and which rotates integrally with the lower main body and has an outer diameter which comes into contact with the inner wall of the outer cylinder 4 and rotates. is doing. Reference numeral 8 denotes a linear spring, one end of which is attached to the fixed holding portion 5 and the other end of which is attached to the movable holding portion 6, and one or a plurality of springs are used.

Reference numeral 9 denotes an upper main body fixing portion which fits into the fixed holding portion 5, and is formed inside the outer cylinder 4. Reference numeral 10 denotes a movable portion that fits with the movable holding portion 6, and is formed to extend from the lower main body 2. Reference numeral 11 is a movable shaft hole formed in the outer cylinder 4, and 12 is a movable shaft fitted in the movable shaft hole 11 and rotatably installed.

Further, 13 is a microphone built in the lower main body 2, 14 is connected to the microphone 13 via a lead 1, has a predetermined length in the rotational direction on the outer circumference of the inner cylinder 7, and is conductive. It is a plurality of rotating contacts formed of a material or the like.

2 to 4 are cross-sectional views showing the operating conditions in the vicinity of the center of rotation of the telephone. In the figures, 15 is a wireless controller installed in the upper main body 1, and 16 is the inside of the upper main body 1. A plurality of fixed contacts that are connected to the wireless controller 15 via the leads 1 and further penetrate the upper body 1 and the outer cylinder 4 and have their tips contact the rotating contacts 14 on the outer circumference of the inner cylinder 7. , 17 are pressing springs that act so as to constantly press the fixed contact 16 against the rotating contact 14.

FIG. 5 is a perspective view showing the opened / closed state of the lower main body 2 with respect to the upper main body 1, in which 18 is a receiver formed on the upper main body 1, 19 is formed on the lower main body 2, and the microphone 13 is provided. It is a transmitting unit having.

Next, the operation will be described. The inner cylinder 7 formed of the viscoelastic body and having the fixed holding portion 5 and the movable holding portion 6 at the end is inserted into the outer cylinder 4 fixed to the upper body 1, and the fixed holding portion 5 is fixed to the upper body. The part 9 is fitted and fixed.

The movable shaft 12 of the lower body 2 is rotatably fitted in the movable shaft hole 11 at the end of the outer cylinder 4, and the other movable shaft 10 is an inner cylinder inserted in the outer cylinder 4. The movable holding portion 6 at the 7th end is fitted.

Therefore, in the telephone assembled in this way, by opening and closing the lower body 2 with respect to the upper body 1, one end is fixed and the other end is attached to the rotatable viscoelastic inner cylinder 7. Is subjected to a torsional force, and the linear spring 8 is also twisted. Therefore, the repulsive force that urges the upper body 1 and the lower body 2 in the opening direction or the closing direction is accumulated.

Also, the lower body 2 of the upper body 1
In the opening / closing operation with respect to, in the closed state as shown in FIG. 2, the rotary contact 14 on the inner cylinder 7 is completely separated from the fixed contact 16 on the outer cylinder 4 side.
Since the circuit that connects the wireless control unit 15 and the microphone 13 via the lead 1 is open, the microphone 13 does not operate and becomes incapable of transmitting. This state is maintained within the opening amount a in FIG.

On the other hand, when the upper main body 1 and the lower main body 2 are opened to each other as shown in FIGS. 3 and 4, in the region where these two states are the limits, that is, in FIG. Within the area of the opening amount b, the rotary contact 14 comes to a position where it contacts the fixed contact 16. Therefore, the wireless control unit 15
The circuit that connects the microphone 13 to the microphone 13 via the lead l is closed, and the microphone 13 is in an operable state, and transmission is possible.

That is, in FIG. 5, a is the upper body 1
Is the initial opening amount of the lower body 2, and b is the opening amount from the initial opening to the final opening. 2 shows a state in which the upper body 1 and the lower body 2 are closed, FIG. 3 shows a state in which the opening angle of the upper body 1 and the lower body 2 is 90 °, and FIG. 4 shows the upper body 1 and the lower body 2. Shows a state in which is fully opened.

Therefore, the microphone 13 installed in the lower main body 2 does not operate in the closed state, and the microphone 13 operates in the opened state in the range of about 90 to 180 °, enabling the transmission.

Example 2. In the above embodiment, the rotary contact 14 formed on the outer circumference of the inner cylinder 7 with a predetermined length in the rotation direction.
And a fixed contact 16 which is installed in the upper main body 1 and is constantly pressed against the rotating contact 14 by a spring force to make contact therewith,
Although the microphone 13 is switched between operating and non-operating, as shown in FIGS. 6 to 8, the rotating contact 14A is formed in an arc shape on the side surface of the inner cylinder end portion, and the rotating contact 14A is formed at a predetermined time. You may make it contact the fixed contact 16A provided in the upper main body side in a moving region.

As a result, the upper body 1 and the lower body 2
When the microphone is closed as shown in FIG. 6, the microphone 13 is made inoperative, and when it is opened as shown in FIGS. 7 and 8,
The microphone 13 can be made operable.

Example 3. 9 to 11 show another embodiment of the present invention. This is because the two linear springs 8 embedded in the inner cylinder 7 are twisted so as to change from the state of FIG. 9 to the states of FIGS. 10 and 11 when the lower body 2 is rotated with respect to the upper body 1. By making them possible, they can contact each other.

That is, the two linear springs 8 embedded in the inner cylinder 7 may be used as contact terminals, and the mutual contact of the linear springs due to the twisting operation at the time of opening may be used as the contact. Further, instead of the inner cylinder 7 formed of the viscoelastic body 7, a cylindrical inner cylinder 20 is used.

That is, each of these linear springs 8 is used as a switch for operating and inactivating the microphone 13, and each of these linear springs 8 is controlled by the microphone 13 and the wireless control. By connecting in the circuit connecting the portion 15 and the lead 1, the state of FIG. 9 is switched off, and the state of FIGS. 10 to 11 is switched on.
Fixed contacts 16 and 16A and movable contact 1 as shown in FIGS.
It can be formed without using 4, 14A.

[0034]

As described above, according to the first aspect of the present invention, the outer cylinder provided at the center of rotation where the lower body is connected to the upper body and the upper body or the outer cylinder are fixed. A fixed holding part, a movable holding part fixed to the lower body,
Between the fixed holding part and the movable holding part, the outer peripheral surface is in contact with the inner wall of the outer cylinder and is installed so as to rotate integrally with the lower main body, and a linear spring is embedded inside. An inner cylinder formed of an elastic body is provided, and a rotating contact is formed on the outer circumference of the inner cylinder with a predetermined length in the rotation direction. Since the moving contact and the fixed contact that comes into contact with the moving contact within a predetermined turning area are provided and the fixed contact is constantly pressed against the turning contact by the spring, the upper body and the lower body hinder the call operation. There is an effect that it is possible to eliminate the occurrence of protrusions and to obtain a structure that can be downsized.

According to the second aspect of the invention, an arcuate rotary contact is provided on the side surface of the end of the inner cylinder, and the upper body is provided with the rotary contact and a fixed contact that comes into contact with the rotary contact within a predetermined rotary region thereof. With this configuration, it is possible to form a switch mechanism on the side of the inner cylinder near the center of rotation that switches between operating and not operating the microphone, and it is possible to prevent this from interfering with call operations in the upper and lower bodies. It is effective.

Further, according to the invention of claim 3, since at least two of the linear springs embedded in the inner cylinder serve as contacts for turning on and off the operation of the microphone of the lower main body, A switch mechanism for switching between operation and non-operation can be formed in the inner cylinder. Therefore, it is not necessary to newly provide a switch member, and there is an effect that the structure can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a foldable telephone according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an operating condition in the vicinity of the center of rotation of the telephone in FIG.

3 is a cross-sectional view showing another operation state in the vicinity of the center of rotation of the telephone in FIG.

FIG. 4 is a sectional view showing still another operation state in the vicinity of the center of rotation of the telephone in FIG.

5 is a cross-sectional view showing an open / closed state of the lower main body in FIG. 1. FIG.

FIG. 6 is a cross-sectional view showing an operating state in the vicinity of the center of rotation of the folding type telephone according to the embodiment of the invention of claim 2;

FIG. 7 is a cross-sectional view showing another operating state in the vicinity of the center of rotation of the folding type telephone according to the embodiment of the invention of claim 2;

FIG. 8 is a cross-sectional view showing still another operating state in the vicinity of the center of rotation of the foldable telephone according to the embodiment of the invention of claim 2;

FIG. 9 is a perspective view showing an operating state in the vicinity of the center of rotation of the foldable telephone according to the embodiment of the invention of claim 3;

FIG. 10 is a perspective view showing another operating state in the vicinity of the center of rotation of the folding telephone according to the embodiment of the invention of claim 3;

FIG. 11 is a perspective view showing still another operating state in the vicinity of the center of rotation of the foldable telephone according to the embodiment of the invention of claim 3;

FIG. 12 is a front view showing a conventional foldable telephone.

13 is a vertical cross-sectional view showing the foldable telephone in FIG.

[Explanation of symbols]

 1 Upper Body 2 Lower Body 3 Rotation Center (Rotation Center) 4 Outer Tube 5 Fixed Holding Section 6 Movable Holding Section 7, 20 Inner Tube 8 Linear Spring 13 Microphone 14, 14A Rotating Contact 16, 16A Fixed Contact 17 Spring

Claims (3)

[Claims] 1. An upper body constituting a handset, a lower body constituting a transmitter, an outer cylinder provided at a rotation center portion in which the lower body of the upper body is continuously provided, and the upper body. Or, between the fixed holding part fixed to the outer cylinder, the movable holding part fixed to the lower body, and the fixed holding part and the movable holding part, the outer peripheral surface contacts the inner wall of the outer cylinder. ,
And an inner cylinder formed of a viscoelastic body in which a linear spring is embedded and installed so as to rotate integrally with the lower body, and a predetermined length in the rotation direction on the outer circumference of the inner cylinder. And a fixed contact that is installed in the upper body, penetrates the outer cylinder, and contacts the rotating contact with the rotating contact within a predetermined rotating region of the rotating body, and always rotates the fixed contact. A foldable phone with a spring that presses against the contacts. 2. An upper body constituting a handset, a lower body constituting a transmitter, an outer cylinder provided at a rotation center portion in which the lower body of the upper body is continuously provided, and the upper body. Or, between the fixed holding part fixed to the outer cylinder, the movable holding part fixed to the lower body, and the fixed holding part and the movable holding part, the outer peripheral surface contacts the inner wall of the outer cylinder. ,
And an inner cylinder formed of a viscoelastic body in which a linear spring is embedded, which is installed so as to rotate integrally with the lower body, and a rotary contact provided in an arc shape on the side surface of the inner cylinder end portion. A foldable telephone set installed on the upper body, comprising the rotary contact and a fixed contact that comes into contact with the rotary contact within a predetermined rotary area thereof. 3. The foldable telephone according to claim 1, wherein at least two linear springs embedded in the inner cylinder are used as contacts for turning on / off the operation of the microphone of the lower body.