WO2007080639A1

WO2007080639A1 - Sliding device and portable terminal provided with same

Info

Publication number: WO2007080639A1
Application number: PCT/JP2006/300286
Authority: WO
Inventors: Noriyoshi Satoh; Tadayuki Takanashi; Kensaku Fujiwara
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 2006-01-12
Filing date: 2006-01-12
Publication date: 2007-07-19

Abstract

Provided is a sliding device by which increase of an overlapping area of upper and lower cases can be eliminated even a plurality of torsion coil springs are arranged to increase an urging force. A portable terminal having such sliding device is also provided. The sliding device (4) is provided with a first torsion coil spring (28) and a second torsion coil spring (29) which urge a base section (27) toward a guide section (32) of a guide rail section (26). In a status where the base section (27) is shifted to the side of one end (26A) of the guide rail section (26), both ends of the first and the second torsion coil springs (28, 29) on one side are connected to a third through hole (38) of the base section (27), and the other ends of the first and the second torsion coil springs (28, 29) are separately connected to first and second through holes (33, 34), which are on the guide rail section (26) on the side of the guide section (32) and closer to an opposite end (26C) of the guide rail section (26) than a third through hole (38).

Description

Specification

SLIDING DEVICE AND PORTABLE TERMINAL HAVING THE SAME

Technical field

The present invention relates to a slide device including a base portion slidably provided on a guide rail portion, and a spring that biases the base portion toward the sliding end of the guide rail portion, and a portable device including the same. It relates to mobile terminals such as telephones, PDAs, cameras, and notebook computers.

Background art

[0002] In recent years, a large number of mobile phones have been developed and used. In addition to the straight type that has a simple bar shape, this type of mobile phone has a folding type that can be opened and closed via a rotary hinge device. Various slide types that can be opened and closed via an id device have been developed.

This slide type mobile phone slide device superimposes a first member (hereinafter referred to as an upper casing) and a second member (hereinafter referred to as a lower casing) in a slidable manner via a guide portion. From the overlapped closed state where the lower case covers and closes the upper case, the lower case slides and moves relative to the upper case so that the overlapped surface of the upper case is exposed. It is configured.

[0003] In this slide device, one end of the elastic member is connected to the upper casing, the other end is connected to the lower casing, and the lower casing is not slid until the lower casing is slid by a predetermined length with respect to the upper casing. A closing bias is generated that moves back in the superposition closing direction, and an opening bias that moves forward in the opening slide direction is generated when sliding for a predetermined length (see, for example, Patent Document 1).

Patent Document 1: Japanese Patent Application Laid-Open No. 2004-253526

Disclosure of the invention

Problems to be solved by the invention

[0004] In such a slide device, when holding a slide-type mobile phone in hand, it is unexpectedly opened, closed, or extended and opened to send e-mails or calls. Sometimes a desired biasing force is required so that it does not close easily.

Therefore, the elastic member is the force formed by the torsion coil spring. In order to obtain a large biasing force, the wire must be thickened or the torsion angle increased. [0005] On the other hand, when the wire diameter is increased or the torsion angle is increased and the opening / closing operation is repeated (when repeated loads are applied), the bending stress generated in the torsion coil spring exceeds the allowable stress. The torsion coil spring may be damaged.

Therefore, it is necessary to increase the average coil diameter, increase the number of coils, and decrease the torsion angle of the torsion coil spring.

[0006] In addition, when the upper housing and the lower housing are slid to expose a part of the overlapping surface of the upper housing, and the operation portion is provided on the exposed portion, the operability is small if the exposed surface is small. Therefore, a larger slide amount is preferable.

At this time, a slide device having a torsion coil spring must be disposed in the overlapping region of the upper housing and the lower housing in an open state.

[0007] This slide device has a large sliding amount, and the torsion coil spring is exposed, which may be touched by the user. The amount of sliding is determined by the size of the torsion coil spring to be arranged.

Therefore, if a plurality of springs are provided, sufficient urging force can be secured, but on the other hand, since the occupied area increases, it is difficult to reduce the size of the mobile phone using the slide device.

[0008] The present invention has been made in view of the above circumstances, and even if a plurality of torsion coil springs are provided in order to increase the biasing force, the overlapping region of the upper and lower casings can be enlarged (the operation section is disposed). It is an object of the present invention to provide a slide device capable of avoiding the narrowing of the area to be used, and a portable terminal equipped with the slide device.

Means for solving the problem

[0009] The slide device according to the present invention includes a guide rail portion, a base portion that is slidably guided by the guide rail portion, and a urging member that biases the base portion toward the sliding end of the guide rail portion. A first torsion coil spring and a second torsion coil spring, and in a state where the base portion is moved to one end side of the guide rail portion, one end of each of the first and second torsion coil springs is The other end of each of the first and second torsion coil springs is a guide rail portion that is connected to one predetermined position, and is a sliding end side opposite to the guide rail portion from the one predetermined position. It is characterized by being individually connected to a predetermined position in To do.

[0010] With this configuration, when the base portion is moved to the sliding end side on the opposite side to the sliding end side force on one side of the guide rail portion, the first torsion coil spring is pivoted around the one predetermined position. The second torsion coil spring rotates in the same direction as the first torsion coil spring, and after the base part has moved a predetermined amount, the second torsion coil spring rotates. The direction of movement can be reversed.

As a result, even if a plurality (two) of torsion coil springs are provided to increase the urging force, the area occupied by these torsion coil springs can be reduced.

[0011] Further, in the slide device of the present invention, the base portion is moved to the second position located on the sliding end portion side opposite to the first position force located on one end side of the guide rail portion. The coil portion of the first torsion coil spring rotates around the one predetermined position, and the coil portion of the second torsion coil spring rotates around the one predetermined position. When the coil portion of the second torsion coil spring is overlapped with the position where the coil portion of the first helical coil spring is located in the first position by rotating in the same direction as the rotation direction of the spring. It is characterized by that.

With this configuration, the first torsion coil spring moves to follow the position where the first torsion coil spring is located.

Therefore, the total of the areas of both the first torsion coil spring and the second torsion coil spring can be reduced while ensuring the necessary contact for rotation.

[0013] Further, the slide device of the present invention is characterized in that the torsion directions of the first torsion coil spring and the second torsion coil spring are made different.

With this configuration, one end of the first and second torsion coil springs is located at the lower part of the coil, and the other end force S is located at the upper part of the coil.

That is, the height of one end side of each torsion coil spring can be varied. Therefore, in the state where both ends of the first and second torsion coil springs are connected to one predetermined position of the base part, it is not necessary to lift the torsion coil spring from the base part. The thickness of the torsion coil spring and the height (thickness) direction of the area in which the first and second torsion coil springs are movable can be suppressed. [0015] In the slide device of the present invention, a hole is provided at one predetermined position of the base portion, and the bent portion provided on one end side of the one torsion coil spring is the other torsion coil spring. It is characterized in that it is inserted into a ring portion formed at one end of the ring and attached to the hole.

With this configuration, one end of each torsion coil spring can be connected to the base without using a dedicated component such as a pin. In addition, the first and second torsion coil springs can have a structure that does not require a dedicated part such as a lid member for preventing one end of the base portion from lifting up.

Since it is not necessary to squeeze one end of each torsion coil spring with a dedicated part such as a pin, the mounting operation can be facilitated.

[0017] Further, the portable terminal provided with the slide device of the present invention further includes a first housing having a display unit to which the guide rail unit is fixed, and an operation unit in the slide device, and the base unit. And a second housing to which the operating portion is exposed when the base portion is slid into the guide rail portion.

[0018] With this configuration, it is possible to prevent the area (area) for arranging the operation unit from being narrowed while increasing the force (biasing force) when moving the second housing relative to the first housing. .

The invention's effect

[0019] According to the present invention, a force provided with a plurality (two) of torsion coil springs to increase the urging force, the area occupied by these torsion coil springs can be reduced, so that a desired urging force can be obtained. At the same time, it is possible to minimize the area that overlaps when one casing is slid open (the area where the torsion coil spring is disposed).

In addition, the one end of the torsion coil spring avoids an increase in thickness and does not use dedicated parts. Therefore, the slide device or mobile terminal device equipped with the slide device or a mobile terminal device equipped with the slide device is made larger, lower in cost, and thicker Can be provided, and a portable terminal equipped with the slide device can be provided.

Brief Description of Drawings

FIG. 1 is a perspective view showing an appearance of a mobile phone provided with a slide device of the present invention.

FIG. 2 is a perspective view showing an appearance of a mobile phone provided with the slide device of the present invention. FIG. 3 is a block diagram showing an electrical configuration in a casing of a mobile phone provided with the slide device of the present invention.

FIG. 4 (a) is an exploded perspective view of first and second torsion coil springs, and FIG. 4 (b) is a perspective view of first and second torsion coil springs.

FIG. 5 is a plan view showing an arrangement state of first and second torsion coil springs.

Explanation of symbols

1 Slide-type mobile phone (mobile terminal)

2 Upper casing (first casing)

3 Lower housing (second housing)

4 Slide device

6 Display section

11 First operation part (operation part)

13 First operation part (operation part)

26 Guide train

26A Right end of guide rail (one end of guide rail)

26B 1st position

26C Left end of guide rail (opposite end of guide rail)

26D 2nd position

27 Base part

28 First torsion coil spring

29 Second torsion coil spring

32 Guide section (sliding end)

33 1st through hole (predetermined position on the sliding end side)

34 Second through hole (predetermined position on the sliding end side)

38 3rd through hole (one predetermined position)

39 1st coil part (coil part)

40 Ring (one end of the first torsion coil spring)

41 First bent part (the other end of the first torsion coil spring) 42 2nd coil part (coil part)

43 Second bent part (one end of second torsion coil spring)

44 3rd bent part (the other end of the 2nd torsion coil spring)

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Here, the slide device of the present invention and a portable terminal equipped with the slide device will be described by applying to a slide type mobile phone.

FIG. 1 is a perspective view showing an external appearance of a mobile phone provided with the slide device of the present invention, where (a) shows a closed state and (b) shows an open state. FIG. 2 shows an exploded perspective view of FIG. FIG. 3 is a block diagram showing an electrical configuration in a casing of a mobile phone provided with the slide device of the present invention. 4 (a) and 4 (b) are perspective views of the first and second torsion coil springs. Fig. 5 is a plan view showing the arrangement of the torsion coil springs, (a) when the main body is closed, and (b) when the guide rail is slid relative to the base by L1. (C) When sliding with the guide rail force relative to the base part, (d) When sliding with the guide rail force L3 relative to the base part, (e) With the guide rail force against the base part FIG. 5 is a diagram showing a state where the main body is in an open state after sliding by L4.

As shown in FIGS. 1 to 4, the slide type mobile phone 1 according to the present embodiment is roughly configured by a first housing (upper housing) 2 and a second housing (lower housing) 3. And a slide device 4 for slidably fixing the upper and lower casings 2 and 3 to constitute a main body.

The upper housing 2 accommodates a receiver 5, a display unit 6, a permanent magnet 7, a camera unit 9, a speaker 12, and a first printed circuit board (not shown). Among these, the display portion 6 is exposed on the main surface 2A of the upper housing 2.

[0025] On the other hand, the lower housing 3 includes a transmitter (microphone) 10, a first operation unit (operation unit) 11, a second operation unit (operation unit) 13, a vibrator unit 14, and a Hall element. 15, a detachable battery 16, an antenna 17, a flexible wiring member (for example, a flexible board or wire) 18, a second printed board (not shown), and the like.

On the first printed circuit board and the second printed circuit board, a transmission / reception unit 20, a data conversion unit 21, an audio processing unit 22, an image processing unit 23, an information recording unit 24, a control unit 25, and the like are mounted. The

[0026] The upper and lower casings 2 and 3 are slidably fixed to the slide device 4, and mainly include a guide, a lenore 咅 26, a base 咅, and a first twist = 3. 28 and second torsion = 3, it is composed of 29. In order to change the state of the main body part to the closed state force open state, the base part 27 fixed to the lower casing 3 becomes slidable with respect to the guide rail part 26 fixed to the upper casing 2. Yes.

[0027] The flexible wiring member 18 has connectors 30 mounted on both ends, and the connectors 30 are fitted into connectors (not shown) mounted on the first printed board and the second printed board. The two are electrically connected, and are bent between the upper housing 2 and the lower housing 3.

Next, each component included in the slide type mobile phone 1 of the present embodiment will be described in more detail.

Here, the main body is composed of the upper casing 2, the lower casing 3, and the slide device 4 as described above. The main body is slidably connected by the sliding operation of the slide device 4.

[0029] When checking a mobile phone, a call, or an incoming mail, it is used with the main body part closed (closed state) as shown in FIG. 1 (a). On the other hand, when entering letters, numbers and phone numbers

As shown in FIG. 1 (b), the first operation unit 11 and the second operation unit 13 of the lower housing 3 are used in the exposed state (open state).

[0030] The upper casing 2 will be described.

The receiver 5 is a first audio output unit, and outputs the communication partner's audio. Speaking power 12 is used to output ringtones and voices when using hands-free.

The display unit 6 is the main surface 2A of the upper housing 2 and is provided closer to the lower end (approximately the center) than the receiver 5. The display unit 6 displays a mark indicating received electric field strength, remaining battery capacity information, time information and incoming call information, input characters and symbols, and the like.

[0031] The user can recognize the display information displayed on the display unit 6 even when the main body is in an open or closed state. The display unit 6 can be configured by a liquid crystal display (LCD) or the like. The permanent magnet 7 is disposed on the lower end side of the upper housing 2 and in the vicinity of the display unit 6.

[0032] The camera unit 9 is provided adjacent to the receiver 5 of the upper housing 2, and the front of the display unit 6 can be imaged.

Incident light from the subject captured by the camera unit 9 passes through the lens group and is converted into an optical signal force electric signal by a photoelectric conversion element such as a CDD (charge coupled device), and image information is generated. After this image information is processed by the image processing unit 23, an image is generated on the display unit 6.

[0033] For this reason, the display unit 6 and the camera unit 9 are connected to the image processing unit 23, and image information captured by the camera unit 9 is recorded in the information recording unit 24 when a predetermined shooting is performed. The In addition

In addition to this image information, the information recording unit 24 also provides telephone number information, voice information, image information other than the captured image information (received image information, etc.), characters such as mail that is being created or transmitted / received. Information can be recorded.

[0034] The lower casing 3 will be described.

The first operation unit 11 includes operation buttons that can be used for receiving and ending buttons, adjusting the volume output from the receiver 5 and the speaker 12, switching to the manner mode, and selecting and confirming on the menu screen. The second operation unit 13 is printed with numbers, characters, and symbols for inputting telephone numbers and characters.

The microphone 10, the first operation unit 11, and the second operation unit 13 are opposite to the main surface 2A of the upper housing 2 when the main body is closed (also referred to as the back surface of the upper housing 2). ) Is provided on the main surface 3A of the lower housing 3 that is covered oppositely!

Accordingly, the first operation unit 11 and the second operation unit 13 are exposed when the main body is in the open state. The user can operate the first operation unit 11 and the second operation unit 13 to input, for example, characters, symbols and numbers, and operate the camera unit 9. When the user operates the first operation unit 11 or the second operation unit 13, the lower end of the upper housing 2 exists in front of the user's finger. When a person with a long fingernail tip operates, the lower end and the first operation unit 11 or the second operation unit 13 are not connected to reduce the operability of the first operation unit 11 or the second operation unit 13. A predetermined distance must be provided. For this reason, when the main body portion is also in the open state, the amount of movement of the upper housing 2 is preferably as large as possible. If you want to be able to adjust the volume output from receiver button or end button, receiver 5 or speaker 12, switch to manner mode, and select and confirm on the menu screen even when closed. The first operation unit 11 may be disposed on the side surface of the upper casing 2 or the lower casing 3 exposed to the outer surface when the lower end side of the display unit 6 of the upper casing 2 is closed.

In the embodiment of the present invention, since the slide amount is increased, the visibility of characters and images is improved by making the display unit 6 as large as possible, and the first operation unit 11 and the second operation are performed. By forming the part 13 on the same plane, the amount of finger movement is reduced and the operability for character input is improved.

The vibrator unit 14 is housed in the lower housing 3 and notifies the incoming call by vibration by oscillating when the incoming call is received.

The Hall element 15 is provided on the second printed circuit board so as to face the permanent magnet 7 when the main body is in the closed state. The Hall element 15 detects the magnetic field of the permanent magnet 7 and outputs a detection signal to the control unit 25 because the permanent magnet 7 is in the proximity state when the main body is closed. In addition, since the permanent magnet 7 is separated from the hall element 15 when the main body is open, the magnetic field of the permanent magnet 7 cannot be detected, and the hall element 15 does not generate a detection signal.

That is, when the Hall element 15 detects the permanent magnet 7, the main body is in a closed state, and if it cannot be detected, it is in an open state. In the slide type mobile phone 1 of the present embodiment, if the main body is in the closed state, the light source that illuminates the first operation unit 11 and the second operation unit 13 is turned off to reduce power consumption. When the main unit is open, the light source that illuminates the first operation unit 11 and the second operation unit 13 is turned on, and the characters and symbols on the first operation unit 11 and the second operation unit 13 can be clearly seen. it can.

The control unit 25 is connected to the first operation unit 11, the second operation unit 13, the vibrator unit 14, the hall element 15, the transmission / reception unit 20, the data conversion unit 21, the image processing unit 23, and the information recording unit 24. Thus, these controls are performed. Further, the control unit 25 is also connected to the battery 16.

The transmission / reception unit 20 is connected to the antenna 17, and is configured to process data received by the antenna 17 and output it to the data conversion unit 21. On the other hand, the data converter 21 is connected to the data converter 21, and the data converter 21 includes the receiver 5, the speaker. 12 and microphone 10 are connected respectively.

Therefore, in this data conversion unit 21, the antenna is connected via the transmission / reception unit 20 and the control unit 25.

Received data from 17 is converted into audio data and output to the data converter 21.

On the other hand, the data converter 21 decodes the audio data to generate an audio signal, and then outputs it to the receiver 5 and the speaker 12. On the other hand, in the receiver 5 and the speaker 12, the data converter

The sound corresponding to the sound signal transmitted from 21 is output.

In addition, the data converter 21 encodes the voice received by the microphone 10 to generate voice data, and then outputs the voice data to the data converter 21. The data conversion unit 21 converts the input audio data into communication data, and then outputs the communication data to the transmission / reception unit 20. The transmission / reception unit 20 processes the received communication data and transmits it from the antenna 17 as a radio signal radio wave.

[0042] The slide device 4 will be described.

The guide rail portion 26 includes a flat portion 31 and guide portions (sliding ends) 32 in which both ends of the flat portion 31 are bent in a U-shape. Near the guide portions 32 on both sides, a first through hole (predetermined position on the sliding end side) 33 and a second through hole (predetermined position on the sliding end side) 34 are respectively provided.

[0043] The first and second through holes 33 and 34 have a slight gap in the direction of the arrow A in order to provide a gap between the first torsion coil spring 28 and the second torsion coil spring 29. Has a phase difference. In addition, there are four screw holes 35 at the four corners of the flat portion 31 into which screws (not shown) used for fixing the guide rail portion 26 to the back surface of the upper housing 2 are screwed.

[0044] The base portion 27 includes a flat plane portion 36 and a sliding portion 37 bent so that both ends of the plane portion 36 are raised. A third through-hole 38 (one predetermined position of the base portion 27) 38 is provided at the approximate center of the flat portion 36.

The first and second torsion coil springs 28 and 29 formed of the same material and wire diameter will be described with reference to FIGS. In FIG. 4, the first torsion coil spring 28 includes a first coil part (coil part) 39 formed in a left-handed manner, a ring part (one end) 40 formed on one end side, and a substantially U-shape on the other end side. The first bent portion (the other end) 41 is formed by being bent into a shape. The second torsion coil spring 29 includes a second coil part (coil part) 42 formed by right-handed winding, and a second bent part (one end) 43 that is bent into a substantially U shape on both one end and one end side. And the second It has 3 bent parts (the other end) 44.

[0045] The second bent portion 43 of the second torsion coil spring 29 is the ring portion 4 of the first torsion coil spring 28.

After passing through 0, it is hooked and connected to the third through hole 38 of the base portion 27.

The base part 27 to which the first and second torsion coil springs 28 and 29 are attached has the sliding part 37 inserted into the guide part 32 of the guide rail part 26 also in the A direction, and the base part 27 is inserted into the first and second base parts 27. After passing through the through holes 33, 34, the first bent portion 41 of the first torsion coil spring 28 is hooked and attached to the first through hole 33.

Further, the third bent portion 44 of the second torsion coil spring 29 is hooked and attached to the second through hole 34.

In a state where the base portion 27 is assembled to the guide rail portion 26, the first and second torsion coil springs 28 and 29 are interposed between the base portion 27 and the guide rail portion 26.

[0047] The first coil portion 39 of the first torsion coil spring 28 was left-handed, and the second coil portion 42 of the second torsion coil spring 29 was right-handed. Therefore, the arm portion 47 that forms one end side of the second torsion coil spring 29 is positioned above the second coil portion 42. Further, an arm portion 45 that forms one end side of the first torsion coil spring 28 is positioned below the first coil portion 39.

Therefore, the second torsion coil spring 29 is lifted from the base portion 27 in a state where the ends 40 and 43 of the first and second torsion coil springs 28 and 29 are both connected to the third through hole 38 of the base portion 27. Therefore, it is possible to prevent the first and second torsion coil springs 28 and 29 from increasing in thickness.

Next, the operation of the slide device 4 will be described with reference to FIG. 2, FIG. 4, and FIG.

FIGS. 5A to 5E show a state in which the first and second torsion coil springs 28 and 29 and the first to third through holes 33, 34, and 38 of the slide device 4 are seen through. .

FIG. 5A shows a state where the base portion 27 is brought close to the first position 26B on the right end (one end) 26A side of the guide rail portion 26. FIG. The first and second torsion coil springs 28 and 29 are located on the left side of the third through hole 38.

[0049] The second bent portion 43 of the second torsion coil spring 29 is inserted into the ring portion 40 of the first torsion coil spring 28. Furthermore, the second bent portion of the second torsion coil spring 29 is inserted. 43 is attached through the third through hole 38. Both the first and second torsion coil springs 28 and 29 The third through hole 38 is rotatable about the axis.

At this time, the center of the first coil portion 39 is a radius of rotation R1 with the axis of the third through hole 38 as the rotation center. The center of the second coil portion 42 has a radius R2 (R2> R1) as a rotation center about the axis of the third through hole 38. The radii Rl and R2 are formed on the base 27.

[0050] The first torsion coil spring 28 has an arm portion 45 forming one end side and an arm portion 46 forming the other end side, and has a predetermined twist angle a (a + Δ before being attached to the base portion 27). The apex angle of the torsion angle α is arranged clockwise around the third through hole 38 (the crest of the letter H faces clockwise).

The second torsion coil spring 29 has an arm portion 47 forming one end side and an arm portion 48 forming the other end side to form a predetermined torsion angle β (| 8 + Δ before attaching to the base portion 27). As with the first torsion coil spring 28, the apex angle of the torsion angle j8 is arranged clockwise with the third through hole 38 as the center. )

[0051] In FIG. 5 (a), the arm portion 45 forming one end side of the first torsion coil spring 28 is inclined substantially downward to the left by directing force from the first coil portion 39 to the vicinity of the third through hole 38. ing. The arm portion 46 forming the other end side of the first torsion coil spring 28 is inclined substantially upward to the left from the first coil portion 39 toward the first through hole 33.

The arm portion 47 that forms one end side of the second torsion coil spring 29 is inclined substantially downward to the right from the second coil portion 42 toward the center of the third through hole 38. The arm portion 48 that forms the other end side of the second torsion coil spring 29 is inclined by a substantially left lower force S from the second coil portion 42 toward the second through hole 34.

[0052] FIG. 5 (b) shows a state in which the base 27 moves leftward by L1 relative to the guide rail 26 (the guide rail 26 moves rightward by L1 relative to the base 27). is there. In this state, the third through-hole 38 approaches the first and second through-holes 33 and 34 by a distance L1 in the sliding direction (the direction of arrow A and the opposite direction). Both the torsion coil springs 2 and 29 are rotated clockwise around the axis of the third through-hole 38, and the initial twist angle α changes to α-al and the initial twist angle β changes to β-bl. To do.

The arm portion 45 that forms one end side of the first torsion coil spring 28 is connected to the third coil portion 39 from the first coil portion 39. It is inclined almost to the left with a directing force near the through hole 38. The arm portion 46 that forms the other end side of the first torsion coil spring 28 is inclined substantially upward to the first through-hole 33 from the first coil portion 39, and the state force in FIG. The inclination is large.

[0054] The arm portion 47 forming one end side of the second torsion coil spring 29 has a substantially right downward slope from the second coil portion 42 toward the center of the third through hole 38, as shown in FIG. The inclination has increased from the state of a).

The arm portion 48 that forms the other end of the second torsion coil spring 29 is directed downward from the second coil portion 42 to the second through hole 34, and is slid downward (in the direction of arrow A). And the other side).

[0055] In the state of FIG. 5 (b) as compared to the state of FIG. 5 (a), a bending moment for changing the torsion angle is applied to the first and second torsion coil springs 28 and 29. . When the twist angle becomes small (the initial twist angle a becomes the twist angle a—al and the initial twist angle / 3 becomes / 3—bl), the reaction force acts on the base 27 and the guide rail 26. Due to the component force in the sliding direction, the state force in FIG. 5 (b) also tries to return to the state in FIG. 5 (a). This force to return is called the biasing force.

If the urging force is small, the main body portion easily moves from the open state to the flat state or vice versa.

[0056] In the present embodiment, a desired biasing force can be easily obtained by using two springs. As a result, for example, if a force is unexpectedly applied in the pocket and the main body part is also opened in a flat state by L1, the urging force returns to the closed state, so it can be easily opened in the pocket. Nana! /

In FIG. 5 (b), the first coil portion 39 in the state of FIG. 5 (a) is indicated by a two-dot chain line. The second coil part 42 partially overlaps the two-dot chain line. That is, when the above-described movement of L 1 is performed, the second coil portion 42 is forced to approach the first coil portion 39. The first coil portion 39 rotates in the same direction as the second coil portion 42 (clockwise indicated by an arrow). Since it is moving, the rear-end collision of the first and second coil portions 39 and 42 is avoided.

[0058] Rotate the second coil portion 42 in the direction of the arrow to the position where the first coil portion 39 existed before the movement of L1 until the second coil portion 42 overlaps with the movement of L1. I tried to move it Thus, the arm portion 48 forming the other end side of the second torsion coil spring 29 can be set to a predetermined length. The longer the length of the arm portion 48, the larger the sliding distance of the base portion 27. If the length of the arm portion 48 is short, an attempt is made to obtain the same slide amount as in the present embodiment. Since the change in torsion angle increases, the stress generated in the spring increases, which may cause breakage of the torsion coil spring.

Here, the arrangement space of the first and second torsion coil springs 28 and 29 will be described.

The first and second torsion coil springs 28 and 29 can be inadvertently twisted because they can be easily touched when exposed to the outer surface of the main body regardless of whether the main body is open or closed. There is a risk of deforming the coil spring.

Therefore, in order to avoid exposure of the torsion coil spring regardless of whether the main body portion is open or closed, the torsion coil spring is attached to the upper housing 2 and the lower housing regardless of whether the main body portion is open or closed. It must be placed in the area where case 3 overlaps. In addition, if this space is large, the areas of the first operation unit 11 and the second operation unit 13 are reduced. Therefore, it is preferable that this space is as small as possible.

[0060] In the present embodiment, the first and second torsion coils are formed by overlapping the area necessary for the movement of the second coil part 42 with the area necessary for the movement of the first coil part 39. While the necessary area for the springs 28 and 29 is secured, the total area required for each spring is reduced.

That is, the sum of the aforementioned regions is reduced only by the region where the second coil portion 42 overlaps the first coil portion 39 (the hatched portion in FIG. 5 (b)) S1. As a result, it is not necessary to increase the area where the upper casing 2 and the lower casing 3 overlap, so that a space in which the first operating section 11 and the second operating section 13 are arranged is secured.

FIG. 5 (c) shows a state in which the guide rail portion 26 is moved rightward by L 2 with respect to the base portion 27 in the closing state force. The first coil unit 39 continues to rotate clockwise. The initial twist angle α is α-a2 (a2> al), and the initial twist angle β is j8-b2 (b2> bl). The torsion angle of the first torsion coil spring 28 is substantially minimum when the first through hole 33 and the third through hole 38 are shortest. The twist angle of the second torsion coil spring 29 is substantially minimum when the second through hole 34 and the third through holes 34 and 38 are shortest. In the state of Fig. 5 (a) to Fig. 5 (e), Fig. 5 (c) is an approximation.

[0062] The arm portion 45 on one end side of the first torsion coil spring 28 is inclined substantially upward to the left in the vicinity of the third through hole 38 from the first coil portion 39, as shown in FIG. 5 (b). State force The inclination is increasing. In the second coil section 42, the clockwise rotation is also reversed to the counterclockwise rotation (arrow direction).

The arm portion 47 that forms one end side of the second torsion coil spring 29 is inclined substantially downward to the right from the second coil portion 42 toward the center of the third through hole 38. The arm portion 48 that forms the other end side of the second torsion coil spring 29 is inclined substantially at the right lower force S from the second coil portion 42 toward the second through hole 34.

That is, the arm portion 48 forming the other end side of the second torsion coil spring 29 is inclined in FIG. 5 (a), passes through the vertical body in FIG. 5 (b), and is shown in FIG. 5 (c). 5 (a) The direction of inclination is opposite, and at the same time, the direction of rotation of the second coil section 42 is reversed in the direction of the arrow.

[0063] When the amount of movement of the guide rail portion 26 is in the vicinity of the state shown in Fig. 5 (c), the component force in the sliding direction of the biasing force generated by each torsion coil spring approaches zero. That is, the urging force generated by the two torsion coil springs 28 and 29 is canceled, and the guide rail portion 26 does not move to any sliding end side with respect to the base portion 27.

FIG. 5 (d) shows a state in which the guide rail portion 26 moves to the right by L3 with respect to the base portion 27 in the closing state force. Both the first and second coil portions 39 and 42 continue to rotate clockwise and counterclockwise. The initial torsion angle a of the first torsion coil spring 28 is α−al, and the initial torsion angle 13 of the second torsion coil spring 29 is substantially equal to j8−b2.

[0065] The arm portion 45 forming one end side of the first torsion coil spring 28 is inclined substantially upward to the left from the first coil portion 39 toward the center of the third through hole 38, as shown in FIG. The inclination has further increased from the state of c). The arm portion 46 forming the other end side of the first torsion coil spring 28 rises straight from the first coil portion 39 to the first through hole 33 and is perpendicular to the sliding direction. .

The arm portion 47 forming one end side of the second torsion coil spring 29 is inclined substantially downward to the right from the second coil portion 42 toward the third through hole 38.

The arm portion 48 that forms the other end of the second torsion coil spring 29 extends from the second coil portion 42 to the second penetration. The inclination is almost right-downward toward the through hole 34, and the state force inclination in Fig. 5 (b) is small.

In this state, the guide rail portion 26 is urged to the right (in the direction of arrow A) with respect to the base portion 27 by the urging force generated by the two torsion coil springs 28 and 29. That is, it tries to be in the state shown in FIG.

FIG. 5 (e) shows a state in which the guide rail portion 26 has moved to the right by L4 with respect to the base portion 27. This state is also an open state of the main body portion in which the base portion 27 is brought close to the second position 26D on the left end (opposite end) 26C side of the guide rail portion 26.

The first coil portion 39 also rotates counterclockwise in FIG. 5 (d). That is, it turns clockwise from the state of FIG. 5 (a) to the state of FIG. 5 (d), and then reverses.

The torsion angle of the first torsion coil spring 28 is approximately α, and the torsion angle of the second torsion coil spring 29 is approximately j8, which is substantially the same as in the state of FIG.

[0068] The arm portion 45 forming one end side of the first torsion coil spring 28 has a substantially upward slope toward the third through hole 38 from the first coil portion 39, as shown in FIG. The inclination is smaller than that in d). The arm portion 46 forming the other end side of the first torsion coil spring 28 is inclined substantially upward to the first through-hole 33 from the first coil portion 39.

The arm portion 47 that forms one end side of the second torsion coil spring 29 is inclined substantially upward from the second coil portion 42 toward the center of the third through hole 38. The arm portion 48 that forms the other end side of the second torsion coil spring 29 is inclined downward to the right from the second coil portion 42 toward the second through hole 34, and is inclined from the state of FIG. Is small! /

[0069] Here, the biasing force is summarized.

If the first and second through holes 33 and 34 are on the left side of the third through hole 38, the guide rail part 26 is urged to the left side (the direction opposite to the arrow A) with respect to the base part 27. As the first and second through holes 33, 34 approach the third through hole 38, the urging force gradually increases. When the component forces of the first and second torsion coil springs 28 and 29 are balanced, the urging force becomes almost zero.

Further, when the third through hole 38 passes through the first and second through holes 33 and 34 and the component force becomes unbalanced, the direction reverses to the urging force, and the guide rail portion 26 with respect to the base portion 27 is reversed. Press to the right (in the direction of the arrow). When the first and second through-holes 33 and 34 approach the third through-hole 38 Is the opposite of the above change.

In FIG. 5 (e), the first coil portion 39 in the state of FIG. 5 (d) is indicated by a two-dot chain line. The second coil portion 42 partially overlaps the two-dot chain line (shaded portion S2). That is, when the above-described movement of L4 is performed, the second coil portion 42 is forced to approach the first coil portion 39. The first coil portion 39 rotates in the same direction (counterclockwise) as the second coil portion 42. Therefore, the rear-end collision of the first and second coil portions 39 and 42 is avoided.

As a result, the first coil part 39 immediately before the movement of L4 is rotated to the position where the second coil part 42 overlaps with the movement of L4. Reduce the aforementioned occupation area.

That is, when the guide rail portion 26 moves in the sliding direction with respect to the base portion 27, when the base portion 27 approaches the both end portions of the guide rail portion 26, the other side of the other torsion coil spring remains. By partially overlapping the torsion coil springs, the total operating area required for both sides is minimized while avoiding rear-end collisions.

Further, since the arm portions of the torsion coil springs attached to the first and second through holes 33 and 34 can be lengthened, the urging force can be increased.

[0072] Here, the above-described length of the arm portion will be supplemented.

For example, in FIG. 5 (a), the arm portion 48 on the other end side of the second torsion coil spring 29 is short. If the second through hole 34 is at the same position, the second coil portion 42g is shown in FIG. 5 (a). The position is counterclockwise from the state. At this time, the torsional angle is smaller than the state shown in FIG. 5A (the torsional angle is high) (the torsional angle is a + Δa), and the generated urging force is small.

[0073] As described above, the slide device 4 that slidably guides the base portion 27 toward both sliding ends of the guide rail portion 26 has the first and second torsion coil springs when sliding. When 28 and 29 are rotating, the center of rotation is the same.

When the base part 27 moves L1 from the sliding end on one side of the guide rail part 26 toward the center, the rotation direction of the first and second coil parts 39, 42 is the same, and the movement of L1 After that, when the second torsion coil spring 29 is reversed and the L4 moves before the first and second torsion coil springs 28 and 29 collide, the rotation of the first torsion coil spring 28 is stopped, Between L3 and L4, the first and second torsion coil springs 28 and 29 are configured to rotate in the same direction again. did.

Therefore, the occupied area necessary for the first and second torsion coil springs 28 and 29 to rotate can be reduced by / J.

[0074] This occupied area is a region in which the upper casing 2 and the lower casing 3 overlap when the main body is in the open state. Therefore, by reducing the occupied area, The area overlapping the lower housing 3 can be reduced. At the same time, since the arm portions 46 and 48 of the first and second torsion coil springs 28 and 29 connected to the first and second through holes 33 and 34 can be lengthened, the sliding amount can be increased.

As a result, since the area for forming the first operation unit 11 and the second operation unit 13 can be increased, the buttons arranged on the main surface 3A of the lower housing 3 and the interval between the buttons can be increased. It is easy to operate even if the person is large or has a long nail, and the first operating part 11 and the second operating part 13 can be formed on the same surface, so that the operability is good.

Further, according to the present embodiment, since the second bent portion 43 of the second torsion coil spring 29 is inserted into the ring portion 40 of the first torsion coil spring 28, the base portion 27 is hooked and connected. The first and second torsion coil springs 28 and 29 can be mounted without using dedicated parts (while avoiding cost increase).

Furthermore, by using the slide device 4 for the slide type mobile phone 1, the slide type mobile phone 1 generates a force (biasing force) for moving the second case 3 relative to the first case 2. While increasing the size, it is possible to prevent the area (area) for arranging the first and second operation units 11 and 13 from being narrowed.

In this embodiment, a general torsion coil spring in which the coil center diameter of the torsion coil portion is common to all the powers is used. However, as another form, the coil portion is a spiral spring or the like. Torsional stress can be reduced by forming a spiral part and providing a bent part that overlaps the spiral part with the spiral center end, leading to the outside of the spiral part and having a coiled part. You may plan.

In other words, the spring to be used has a winding part, one end is connected to the base part 27, the other end is connected to the guide rail part 26, and the one end side and the other end side are twisted in a bent shape. A structure having a corner and oriented in the same rotation direction around the rotation axis may be used.

Note that the present invention is not limited to the above-described embodiment, and departs from the gist thereof. However, the present invention can be implemented in various forms within the range.

Industrial applicability

The slide coupling device of the present invention and the mobile terminal equipped with the slide coupling device have a configuration in which a plurality of torsion coil springs for applying an urging force to the slide device are provided, the rotation centers of the two torsion coil springs being the same, When the torsion coil force changes to the open state, the other torsion coil spring is reversed after the other torsion coil spring is rotated to a position where the other torsion coil spring overlaps, so that each torsion coil spring Minimizing the required area has the effect of avoiding an increase in the size of the device while increasing the urging force. Cellular phones, PDAs, mopile PCs, and notebook PCs if lighter It is suitable for application to a sliding device in a small slidable electronic device such as the above.

Claims

The scope of the claims

[1] A guide rail portion, a base portion that is slidably guided by the guide rail portion, a first torsion coil spring that biases the base portion toward the sliding end of the guide rail portion, and A second torsion coil spring,

In a state where the base portion is moved to one end side of the guide rail portion, one end of each of the first and second torsion coil springs is connected to one predetermined position of the base portion,

The other ends of the first and second torsion coil springs are individually connected to a predetermined position on the sliding end side of the guide rail portion opposite to the guide rail portion from the one predetermined position. A slide device characterized by that.

[2] When moving the base portion from a first position located on one end side of the guide rail portion to a second position located on the sliding end portion side on the opposite end side,

The coil portion of the first torsion coil spring rotates around the one predetermined position, and the coil portion of the second torsion coil spring rotates around the one predetermined position. The coil portion of the second torsion coil spring is overlapped with the position where the coil portion of the first torsion coil spring was located at the first position by rotating in the same direction as the rotation direction. The sliding device according to claim 1, wherein:

[3] The sliding device according to [1], wherein the torsion directions of the first torsion coil spring and the second torsion coil spring are made different.

[4] A hole is provided at one predetermined position of the base portion, and a bent portion provided on one end side of one of the torsion coil springs is inserted into a ring portion formed at one end of the other torsion coil spring. The slide device according to claim 1, wherein the slide device is attached to the hole.

[5] The slide device according to claim 1, further comprising: a first housing having a display portion to which the guide rail portion is fixed; and a second housing having an operation portion to which the base portion is fixed. A portable terminal provided with a slide device, wherein the operation portion is exposed when the base portion is slidably guided by the guide rail portion.