WO2010046986A1

WO2010046986A1 - Portable device

Info

Publication number: WO2010046986A1
Application number: PCT/JP2008/069266
Authority: WO
Inventors: 恩田信彦; 長峰智幸
Original assignee: 富士通株式会社
Priority date: 2008-10-23
Filing date: 2008-10-23
Publication date: 2010-04-29

Abstract

A portable phone (1) comprises a body section (10) including input keys (12), a display section (20) slidably coupled to the body section (10) and including a display (22), and a biasing member (50) including a coil portion (51a) and an arm portion (53a) coupled to each other and to the body section (10) and a coil portion (51b) and an arm portion (53b) coupled to each other and to the display section (20) side, which portions are serially continuous with each other, and interposed between the body section (10) and the display section (20). The biasing member (50) is disposed in a region where the body section (10) is covered with the display section (20). The coil portion (51a) and the arm portion (53a), and the coil portion (51b) and the arm portion (53b) have shapes symmetrical to each other.

Description

Portable device

The present invention relates to a portable device.

A portable device having a main body unit and a display unit connected so as to be slidable is known. The main body portion is provided with input keys, and the display portion is provided with input keys and a display. In the closed state in which the main body unit and the display unit overlap each other, the input key of the main body unit is hidden. The display unit with respect to the main body can be slid from the closed state to shift to the open state where the input keys provided on the main body are exposed. Thereby, the user can operate the input key. An urging member for assisting transition between the open state and the closed state is provided between the main body portion and the display portion. Thereby, a state transition is performed smoothly.

JP 2008-154197 A

There is a demand for a large display for the display. In order to employ a large display, it is desirable not to provide an input key on the display unit. Therefore, it is necessary to collect all input keys in the main body. However, when all the input keys are collected in the main body, the area of the input keys in the main body becomes large. In the open state, all the input keys must be exposed. For this reason, it is necessary to increase the relative slide amount between the main body and the display. However, when the slide amount is increased, the area where the main body portion and the display portion overlap is reduced in the open state. Although it is necessary to dispose the urging member in this overlapping region, it is difficult to dispose the urging member in a narrow region, and thus it is difficult to employ a large display for the display unit.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a portable device that can employ a large display.

In order to solve the above problems, a mobile device disclosed in this specification includes a first housing having an input unit, and a second housing having an image display unit that is slidably connected to the first housing. And an urging member having first and second elastic portions that are connected in series with each other and connected to the first and second housings, respectively, and concealed by the first and second housings. Since the urging member has a plurality of elastic portions connected in series, the urging member can cope with a large amount of sliding. Further, by securing the slide amount, the input keys can be integrated into one of the first and second casings, and a large display can be adopted as the other.

A portable device that can employ a large display can be provided.

1A and 1B are exploded perspective views of the mobile phone according to the first embodiment. 2A, 2B, 2C, and 2D are front views of the mobile phone according to the first embodiment. 3A and 3B are explanatory diagrams of the state of the flexible printed circuit board. 4A and 4B are comparison diagrams of the mobile phone of the first embodiment and a mobile phone having a structure different from that of the mobile phone of the first embodiment. 5A and 5B are comparative views of the urging member of the first embodiment and the urging member having a structure different from that of the urging member of the first embodiment. FIG. 6 is an exploded perspective view of the mobile phone according to the second embodiment. 7A, 7B, and 7C are explanatory diagrams of the transition from the closed state to the open state of the mobile phone according to the second embodiment. 8A and 8B are comparison diagrams of the urging force between the urging member of the mobile phone of the first embodiment and the urging member of the mobile phone of the second embodiment. FIG. 9 is an exploded perspective view of the mobile phone according to the third embodiment. FIGS. 10A, 10B, and 10C are views showing a state of transition from the closed state to the open state of the mobile phone according to the third embodiment. FIGS. 11A, 11B, and 11C are diagrams illustrating a state of transition from the closed state to the open state of the mobile phone according to the fourth embodiment.

Hereinafter, a plurality of embodiments according to the present invention will be described with reference to the drawings.

1A and 1B are exploded perspective views of the mobile phone (mobile device) of the first embodiment. 2A, 2B, 2C, and 2D are front views of the mobile phone according to the first embodiment. 1A shows a cellular phone in a closed state, and FIG. 1B shows an opened cellular phone. FIGS. 2A, 2B, 2C, and 2D are opened from the closed state. Indicates transition to state.

As shown in FIGS. 1A and 1B, the mobile phone 1 includes a main body (first housing) 10 and a display (second housing) 20 that are slidably connected to each other. A display (image display unit) 22 that is always exposed is provided on the front surface of the input key (input unit) 12. As shown in FIG. 2D, the main body portion 10 is provided with an input key 12 that is exposed in the open state.

As shown in FIGS. 1A and 1B, a base plate 30, a slider 40, and an urging member 50 are disposed between the main body 10 and the display unit 20. The base plate 30 is fixed to the upper part of the front surface of the main body 10 facing the display unit 20. The slider 40 is fixed to the back surface of the display unit 20 facing the main body unit 10. Guide portions 31 are provided on the left and right edges of the base plate 30. Rail portions 41 are provided on the left and right edges of the slider 40. The guide part 31 and the rail part 41 are slidably engaged with each other. Thereby, the main-body part 10 and the display part 20 are connected so that sliding is mutually possible.

The slider 40 is provided with a notch 47 for releasing a flexible printed circuit board (not shown) for ensuring electrical connection between the main body 10 and the display unit 20. A connector 17 connected to the flexible printed circuit board is provided near the lower end of the base plate 30.

A biasing member 50 is disposed between the main body 10 and the slider 40. The biasing member 50 has a first end connected to the main body 10 and a second end connected to the slider 40. In other words, the second end of the urging member 50 is connected to the display unit 20 side. The biasing member 50 assists the transition between the open state and the closed state.

Details of the urging member 50 will be described.
As shown in FIG. 1A, the urging member 50 includes

coil portions

51a and 51b,

arm portions

53a and 53b, and a connecting portion 55. The end portion of the arm portion 53a is connected to the main body portion 10 side. The end of the arm portion 53b is connected to the display unit 20 side. The urging member 50 has a shape in which two elastic bodies are connected in series. Specifically, the biasing member 50 is formed symmetrically with respect to the center of the connecting portion 55. That is, the coil part 51a and the arm part 53a, and the coil part 51b and the arm part 53b are symmetrical to each other. The coil part 51a and the arm part 53a correspond to a first elastic part, and the coil part 51b and the arm part 53b correspond to a second elastic part.

In addition, the coil part 51a and the arm part 53a, and the coil part 51b and the arm part 53b may be mutually asymmetrical shapes. For example, the outer diameters of the

coil parts

51a and 51b and the lengths of the

arm parts

53a and 53b may be different. By changing the outer diameters of the

coil portions

51a and 51b and the lengths of the

arm portions

53a and 53b, the shape of the curve of the urging force with respect to the slide amount illustrated in FIGS. 8A and 8B can be adjusted. it can.

The transition from the closed state to the open state of the mobile phone 1 will be described. The state of FIG. 1 (A) and FIG. 2 (A) has shown the closed state with which the main-body part 10 and the display part 20 overlapped. When the display unit 20 is pushed upward with respect to the main body unit 10 from the closed state, the display unit 20 slides on the main body unit 10 and is concealed by the display unit 20 as shown in FIGS. The input key 12 starts to be exposed. Further, when the display unit 20 is pushed upward with respect to the main body unit 10, the input key 12 is completely exposed and the state shifts to the open state as shown in FIGS. 1 (B) and 2 (D). .

As shown in FIG. 2 (D), in the open state, the urging member 50 is located in a region where the main body unit 10 and the display unit 20 overlap and is hidden by the main body unit 10 and the display unit 20 It becomes. That is, the urging member 50 is always hidden by the main body 10 and the display unit 20 regardless of the state of the mobile phone 1.

Deformation of the biasing member 50 from the closed state to the open state will be described.
In the closed state, as shown in FIG. 2A, the

arm portions

53a and 53b face the sliding direction, and the connecting portion 55 faces the direction substantially orthogonal to the sliding direction. In this state, the arm portion 53a and the connecting portion 55 try to be further opened around the coil portion 51a by the elastic restoring force. Moreover, the arm part 53b and the connection part 55 try to open further centering on the coil part 51b. Thereby, the urging member 50 maintains the mobile phone 1 in the closed state.

When slightly sliding from the closed state, as shown in FIG. 2B, the

coil portions

51a and 51b are relatively shifted downward and upward, respectively. In this state, the arm portion 53a and the connecting portion 55 are about to open, and the same applies to the arm portion 53b and the connecting portion 55. Therefore, in the state of FIG. 2B, the urging member 50 causes the urging force to return to the closed state to act on the main body unit 10 and the display unit 20.

When further slid, as shown in FIG. 2 (C), the urging member 50 moves so as to rotate counterclockwise around the connecting portion 55. In addition, the end portions of the

arm portions

53a and 53b are arranged in a direction orthogonal to the sliding direction. Further sliding from this state causes the arm portion 53a and the connecting portion 55 to open, and the arm portion 53b and the connecting portion 55 attempt to open. Thereby, the urging member 50 causes the urging force to act on the main body 10 and the display unit 20 so as to shift to the open state.

When shifted to the open state, as shown in FIG. 2D, the

coil portions

51a and 51b move so as to be aligned in the slide direction. In the open state, the arm portion 53a and the connecting portion 55 try to open further, and the arm portion 53b and the connecting portion 55 also try to open. Thus, the urging member 50 maintains the open state. Further, as described above, the urging member 50 moves so as to rotate.

A flexible printed circuit board will be described.
3A and 3B are explanatory diagrams of the state of the FPC (flexible printed circuit board) 70. FIG. 3A shows the cellular phone 1 in the closed state, and FIG. 3B shows the cellular phone 1 in the open state. The urging member 50 is omitted, and the FPC 70 and the

connectors

17 and 27 are indicated by solid lines.

The connector 27 is provided on the back surface of the display unit 20. As shown in FIGS. 3A and 3B, the FPC 70 is connected to the

connectors

17 and 27 through the notch 47. The FPC 70 is folded at the edge of the notch 47. In the closed state, the length of the FPC 70 on the display unit 20 side through the folded portion is shorter than the length of the FPC 70 on the main body unit 10 side through the folded portion. When shifting from the closed state to the open state, the position of the connector 27 moves relatively upward with respect to the connector 17, and accordingly, the slider 40 also moves upward. During this movement, the position of the folded portion of the FPC 70 also changes. In the open state, the length of the FPC 70 on the display unit 20 side through the folded portion is longer than the length on the main body unit 10 side through the folded portion. As described above, when the relative position between the main body unit 10 and the display unit 20 changes, the position of the folded portion of the FPC 70 also changes.

Here, the mobile phone 1x having a structure different from that of the mobile phone 1 of the first embodiment and the mobile phone 1 are compared.
4A and 4B are comparison views of the mobile phone 1 and a mobile phone 1x having a structure different from that of the mobile phone 1. FIG. As shown in FIG. 4A, only the display 22 is provided on the front surface of the display unit 20. On the other hand, as shown in FIG. 4B, a display 22x and input keys 21x are provided on the front surface of the display unit 20x. An input key 12x is provided on the front surface of the main body 10x. The input key 21x is a key mainly called a function key. The input key 12x is called a numeric keypad. Both of these are provided in the main body 10 of the mobile phone 1.

As shown in FIG. 4B, since the input key 21x and the display 22x are provided on the front surface of the display unit 20x, the proportion of the display 22x in the display unit 20x is the display 22 in the display unit 20. Less than In other words, the ratio of the input key 12 occupying the main body 10 is larger than the ratio of the input key 12x occupying the main body 10x. Therefore, the mobile phone 1 has a larger slide amount than the mobile phone 1x. Thus, in order to provide the display 22 on the front surface of the display unit 20, it is necessary to ensure a large slide amount.

Also, when the input keys are collected on the main body with the slide amount being small like the mobile phone 1x, the input keys are collected in a narrow area. Thereby, there exists a possibility that operativity may deteriorate.

Next, the urging member 50 will be described.
5A and 5B are comparison views of the urging member 50 and the urging member 50x having a structure different from that of the urging member 50. FIG. FIG. 5A shows the urging member 50x and the urging member 50 in the closed state. The urging member 50x includes a coil part 51x and arm parts 53ax and 53bx continuous from the coil part 51x. The size of the coil part 51x is the same as that of the

coil parts

51a and 51b. The arm part 53ax and the arm part 53bx are equal in length.

In the state of FIG. 5A, the distance between the end portion of the arm portion 53a and the end portion of the arm portion 53b is D1. If the biasing member 50x is used to secure a slide amount equivalent to that of the mobile phone 1 of the present embodiment, the elastic restoring force of the biasing member 50x is maintained at the angle between the arm portions 53ax and 53bx. The range cannot be exceeded. Therefore, when the distance between both end portions of the urging member 50x is a distance D1, as shown in FIG. 5A, the arm portions 53ax and 53bx need to be longer than the

arm portions

53a and 53b.

FIG. 5B shows the urging member 50x and the urging member 50 in the most compressed state. The most compressed state is when the distance between the end portions is the shortest, and this distance is D2. In this case, the angle between the arm portion 53ax and the arm portion 53bx is the smallest. Further, since the lengths of the arm portions 53ax and 53bx are long, the coil portion 51x is far away from the straight line connecting the end portions as compared with the

coil portions

51a and 51b. Further, as shown in FIGS. 2A, 2B, 2C, and 2D, the urging member rotates. For this reason, when the urging member 50x is employed in the mobile phone 1 having a large slide amount, the coil part 51x may protrude from the region where the main body part 10 and the display part 20 overlap.

However, by providing the two

coil portions

51a and 51b as in the urging member 50, it is possible to secure a slide amount without protruding from the region where the main body portion 10 and the display portion 20 overlap. This prevents the appearance of the mobile phone 1 from being damaged. Since the amount of slide can be secured, operation keys can be gathered on the main body and a large display can be used on the front of the display.

Next, the mobile phone 1a according to the second embodiment will be described. In addition, about the part similar to Example 1, the overlapping description is abbreviate | omitted by attaching | subjecting the same code | symbol. FIG. 6 is an exploded perspective view of the mobile phone 1a. 7A, 7B, and 7C are explanatory diagrams of the transition from the closed state to the open state of the mobile phone 1a.

A pin 55a is provided at the center of the connecting portion 55 of the urging member 50a. The pin 55 a is penetrated by the connecting portion 55. Further, a guide groove 45 extending in the longitudinal direction is formed at the center of the slider 40a. Since the guide groove 45 is provided in the slider 40a fixed to the display unit 20, it can be said that the guide groove 45 is provided on the display unit 20 side.

7A, 7B, and 7C, the guide groove 45 is indicated by a solid line. The guide groove 45 and the pin 55a are slidably engaged. Thereby, the movement locus of the urging member 50a accompanying the slide of the main body 10 and the display unit 20 is guided. Specifically, the biasing member is set so that the deformation amount of the arm portion 53a with respect to the coil portion 51a and the deformation amount of the arm portion 53b with respect to the coil portion 51b when shifting from the closed state to the open state are substantially the same. 50a is guided. The same applies to the transition from the open state to the closed state.

The pin 55a is welded to the connecting portion 55 by heat caulking, but the fixing method of the pin 55a and the connecting portion 55 is not limited to this.

Next, when the movement of the urging member 50 is not guided as in the mobile phone 1 of the first embodiment, and when the movement of the urging member 50a is guided as in the mobile phone 1a of the second embodiment. The difference in the urging force between the urging member 50 and the urging member 50a will be described.
8A and 8B are comparison diagrams of the urging force between the urging member 50 of the mobile phone 1 of the first embodiment and the urging member 50a of the mobile phone 1a of the second embodiment.

8A, the vertical axis indicates the biasing force of the biasing member 50, and the horizontal axis indicates the slide amount. Specifically, on the vertical axis, the urging force in the direction of maintaining the closed state is positive, and the urging force in the direction of maintaining the open state is negative. 8A and 8B show the center SC of the slide amount.

First, the urging force of the urging member 50 at the time of transition from the closed state to the open state will be described.
As shown in FIG. 8A, when the sliding amount is zero, that is, in the closed state, the urging member 50 tries to maintain the closed state. In the section CS of the slide amount from when the slide amount becomes zero until the urging force becomes zero, the urging member 50 tries to maintain the closed state. Therefore, when the user speaks from the mobile phone 1 in this section CS, the main body 10 and the display unit 20 return to the closed state. When the section CS is exceeded, the urging force of the urging member 50 becomes substantially zero. This section is referred to as section UOS. When the section UOS is exceeded, the biasing member 50 applies a biasing force so as to shift to the open state. This section is referred to as section OS. When the user speaks his / her hand from the mobile phone 1 in the section OS, the main body unit 10 and the display unit 20 shift to the open state. Therefore, when the user shifts from the closed state to the open state, the user needs to relatively slide the main body 10 and the display unit 20 from the slide amount zero to the section OS.

Next, the urging force of the urging member 50 at the time of transition from the open state to the closed state will be described.
In the section OS, the urging member 50 applies an urging force so as to be maintained in the open state. In the section CS, the urging member 50 applies an urging force so as to be maintained in the closed state. Therefore, when shifting from the open state to the closed state, the user needs to slide the main body 10 and the display unit 20 relatively from the position where the slide amount is maximum to the section CS.

As shown in FIG. 8A, the section UOS is included in the center SC of the slide amount. Therefore, the slide amount necessary for the transition from the closed state to the open state is substantially equal to the slide amount necessary for the transition from the open state to the closed state. Thus, when the movement of the urging member 50 is not guided, the slide amount for shifting between the open and closed states forced by the user is substantially equal.

However, as shown in FIG. 8A, the maximum absolute values of the urging forces in the sections CS and OS are greatly different. That is, there is a difference between the force imposed on the user when shifting from the closed state to the open state and the force imposed on the user when shifting from the open state to the closed state.

Next, the biasing force of the biasing member 50a at the time of transition from the closed state to the open state will be described.
As shown in FIG. 8B, there is only one point UO at which the urging force of the urging member 50a becomes zero. Further, this point UO is deviated from the center SC of the slide. For this reason, the lengths of the section CS and the section OS are greatly different. Therefore, when the movement is guided like the urging member 50a, the slide amount for the transition between the open and closed states forced by the user is greatly different.

However, as shown in FIG. 8B, the maximum values of the urging forces in the sections CS and OS are substantially equal. For this reason, the force for the transition between the open and closed states forced by the user is substantially equal.

Next, the mobile phone 1b according to the third embodiment will be described. FIG. 9 is an exploded perspective view of the mobile phone 1b according to the third embodiment. FIGS. 10A, 10B, and 10C are diagrams showing a state of transition from the closed state to the open state.

A guide portion 45a is formed on the back side of the slider 40b facing the main body portion 10. 10A, 10B, and 10C, the guide portion 45a is indicated by a solid line. The guide part 45a is formed in a slope shape along the sliding direction. As shown in FIGS. 10A, 10B and 10C, the guide portion 45a is in sliding contact with the coil portion 51a. Thereby, the position of the coil part 51a is guided in the state transition. Thereby, the deformation of the urging member 50 in the transition from the closed state to the open state is substantially the same as the deformation of the urging member 50 in the transition from the open state to the closed state.

Next, the mobile phone 1c according to the fourth embodiment will be described. FIGS. 11A, 11B, and 11C are diagrams illustrating a state of the mobile phone 1c according to the fourth embodiment that is shifted from the closed state to the open state.

11A, 11B, and 11C, a guide portion 45b is formed on the back side of the slider that faces the main body portion 10. In FIGS. 11A, 11B, and 11C, the guide portion 45b is indicated by a solid line. The guide part 45b is formed in a fan shape. The movement of the urging member 50 is guided by the outer edge of the guide portion 45b and the coil portion 51b being in sliding contact. Also by this, the deformation of the urging member 50 in the transition from the closed state to the open state is substantially the same as the deformation of the urging member 50 in the transition from the open state to the closed state.

The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

A portable device in which two housings are slidably connected, such as a PDA or a notebook computer.

Claims

A first housing having an input unit;
A second housing slidably connected to the first housing and having an image display unit;
A portable device comprising first and second elastic portions that are connected in series to each other and connected to the first and second housings, respectively, and are biased by the first and second housings.
The portable device according to claim 1, wherein the biasing member is located in a region where the first and second casings overlap.
The portable device according to claim 1 or 2, further comprising a guide portion for guiding the movement of the biasing member accompanying the slide of the first and second housings.
The portable device according to claim 3, wherein the guide portion guides the urging member so that the deformation amounts of the first and second elastic portions coincide with each other.
The portable device according to claim 3, wherein the guide portion includes a pin provided on the biasing member and a groove provided on one side of the first and second housings and slidably engaged with the pin. .
The portable device according to claim 3 or 4, wherein the guide portion contacts at least one of the first and second elastic portions to guide the movement of the urging member.
The portable device according to any one of claims 1 to 6, wherein the biasing member includes the first and second elastic portions and a connecting portion between the first and second elastic portions.
The first elastic portion includes a first coil portion wound in a coil shape, and a first arm portion that is continuous from the first coil portion and connected to the first housing side,
The said 2nd elastic part contains the 2nd coil part wound by the coil shape, and the 2nd arm part continued from the said 2nd coil part and connected with the said 2nd housing | casing side. A portable device according to claim 1.