JP5354201B2 - Portable terminal and rattling prevention mechanism of portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotation type portable terminal which prevents itself from backlashing. <P>SOLUTION: The portable terminal 200 has: a first case 6; a second case 7 whose rear surface is overlapped on the front side of the first case 6; a rotation unit (a) which is provided between the first case 6 and the second face 7, rotatably connects the first case 6 with the second case 7, and holds the first case 6 and the second case 7 at a prescribed angle; and a backlash prevention mechanism 100 which is provided between the first case 6 and the second case 7, wherein the backlash prevention mechanism 100 prevents the backlash by pressing the second case 7 to be inclined at the predetermined angle, and bringing a part of the second case 7 into contact with the first case 6. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention attaches a display-side housing having a display unit so as to rotate while sliding with respect to an operation-side housing having an operation unit (not only when directly attaching, but also with other independent members). The present invention also relates to a portable terminal having a rotation unit for rotating the portable terminal and a rattling prevention mechanism when the portable terminal is rotated.

  In an electronic device such as a mobile phone, a PDA, or a laptop computer, a display-side casing is foldably connected to an operation-side casing via a hinge, or a vertically long operation-side casing and a display-side casing Are connected in a slidable manner along the length direction.

  In many cases, the display-side casing is vertically long or horizontally long. If the display posture is fixed vertically or horizontally in this way, there is a problem that it is inconvenient when used in various different applications.

  In order to solve the problems as described above, there has been proposed one provided with a rotation coupling mechanism that couples a vertically long operation-side casing and a display-side casing so as to be relatively slidably rotated.

  The rotation coupling mechanism includes a state in which the display-side housing covers and closes the operation-side housing, the display-side housing exposes the operation unit of the operation-side housing, and a center line in the length direction of the operation-side housing. On the other hand, it is configured to be able to shift from one state to the other state in an open state that is symmetrical with respect to the other state (see Patent Document 1 below).

  In addition, a vertically long operation side case and a display side case are connected to each other so as to be foldable by a connecting mechanism including a hinge part and a slide rotation part, and are normally used by opening and closing using the hinge part. If necessary, a portable terminal has been proposed in which the display-side casing is rotated 90 degrees by a slide rotation unit, and the display posture can be selectively converted into a portrait orientation and a landscape orientation (described later). See FIGS. 1 to 7 of Patent Document 2.)

  However, when the rotation connecting mechanism in the portable terminal of Patent Document 1 is shifted from one state to the other by a rotation operation, the vertically long display-side housing overlaps the front of the same operation-side housing. In this state, the screen is shifted to a horizontally long display posture, or vice versa.

  Therefore, the operation unit of the operation side casing is exposed only when the display side case shifts to the horizontally long posture. When the display side case is in the vertically long display posture, the operation unit of the operation side case is always on the display side. Since it is covered and shielded by the casing, for example, when a mobile terminal is used as a telephone, there is a problem that it is not easy to use.

  Further, in recent years, mobile phones are equipped with functions that require horizontal large screen operations such as one-segment broadcasting and full browser.

  For this reason, the display-side housing covers the entire operation-side housing in the “closed state”, and a part of the display-side housing overlaps with the part of the operation-side housing along the length direction to take a vertically long posture. In addition to the “opened state”, a rotating unit with good operability that realizes a “T-shaped state” in which the display-side housing can be rotated 90 degrees and viewed on a horizontal screen is desired.

  Therefore, a rotating unit that can easily operate the above-described three states with one hand has been proposed (Patent Document 3).

  Specifically, in the rotation unit (sliding / rotation mounting unit) of Patent Document 3, the base plate is fixed to the surface of the operation side housing, and the movable plate is fixed to the back surface of the display side housing. The fixed shaft that is caulked and fixed to the movable plate passes through the guide slit of the base plate to prevent the base plate and the movable plate from coming off. The movable plate rotates with the two axial pins fixed by caulking to the base plate as the central axis, and the fixed shaft slides along the guide slit, so that the above three types of states can be formed. is there.

  On the other hand, since the mobile phone provided with the slide mechanism and the rotation mechanism as described above is provided with a unit for sliding and rotation between the casings, it is likely to cause rattling.

  There are two main causes of this rattling: “gap between plates that make up the unit” and “gap between housings”. If the former gap is reduced, slide and rotation will be adversely affected. If the value is made smaller, scratches and peeling of the casings will occur.

  In view of this, a structure has been proposed in which a spring that repels the casings in a direction in which the casings are separated from each other is provided in a slide-type mobile phone so as to ensure a certain clearance and suppress a backlash (Patent Document 4).

JP 2006-019925 A JP 2004-215180 A Japanese Patent Application No. 2008-093851 JP 2007-295116 A

  However, the structure of Patent Document 4 is a rattling prevention mechanism for a slide-type mobile terminal that moves only in one direction. In a rotary mobile terminal, it is difficult to maintain a constant clearance regardless of the rotation angle. There was a problem that it was difficult to apply.

  The present invention has been made in view of the above problems, and an object thereof is to provide a rotary portable terminal having a structure capable of preventing rattling.

  In order to solve the above-described problem, a first form of the present invention is provided between a first casing and a second casing, and between the first casing and the second casing, A rotation unit that couples the first housing and the second housing so that they can rotate relative to each other and can be held at a predetermined rotation angle; and between the first housing and the second housing The pressed portion of the second casing that is provided and is inclined with respect to the first casing by pressing the second casing that is held at the predetermined rotation angle. And a pressing means for bringing the other portion into contact with the first housing.

  According to a second aspect of the present invention, the predetermined rotation angle is provided between the first casing and the second casing that are coupled to each other so as to be rotatable relative to each other and to be held at a predetermined rotation angle. The second casing in a state of being held by the second casing is pressed and tilted with respect to the first casing, and a portion of the second casing other than the pressed portion is the other first A backlash prevention mechanism for a portable terminal, characterized by having a pressing means for contacting the housing.

  According to a third aspect of the present invention, there is provided a mobile terminal attitude changing method using the mobile terminal described in the first aspect.

  ADVANTAGE OF THE INVENTION According to this invention, the rotary portable terminal of the structure which can prevent rattling can be provided.

It is a disassembled perspective view of the portable terminal 200 which concerns on 1st Embodiment. It is a disassembled perspective view of the portable terminal 200 which concerns on 1st Embodiment. FIG. 3A is an enlarged perspective view of the first pad 103a, and FIG. 3B is a perspective view of FIG. 3A viewed from below. FIGS. 3A and 3B are cross-sectional views taken along the line A1-A1 in the vicinity of the first pad 103a in FIG. 2, where FIG. 3A is an exploded view, and FIG. . It is a top view which shows the rotation unit a. It is a top view which shows the portable terminal 200, Comprising: (a) is the state (1st angle) with which the 1st housing | casing 6 and the 2nd housing | casing 7 overlapped, (b) is substantially the portable terminal 200 as a whole. (C) shows a state in which the first casing 6 and the second casing 7 are vertically connected (third angle). Yes. It is the side view which looked at FIG. 6 from the long side 8a side of the 1st housing | casing 6. FIG. It is a disassembled perspective view of the portable terminal 201 which concerns on 2nd Embodiment. FIGS. 9A and 9B are cross-sectional views taken along line A2-A2 in the vicinity of the second pad 121b of FIG. 8, wherein FIG. 9A is an exploded view, and FIG. . It is a figure which shows the portable terminal 201 in a 1st angle, Comprising: (a) is a top view, (b) is alpha-alpha sectional drawing of (a), (c) is the 1st pad 103b vicinity of (b). (D) is an enlarged view of the vicinity of the third pad 123 in (b). It is a figure which shows the portable terminal 201 in a 2nd angle, Comprising: (a) is a top view, (b) is beta-beta sectional drawing of (a), (c) is γ-gamma sectional view of (a), (D) is an enlarged view of the vicinity of the first pads 103a and 103b of (b), and (e) is an enlarged view of the vicinity of the second pads 121a and 121b of (c). FIG. 8 is a diagram showing the mobile terminal 201 at a third angle, where (a) is a plan view, (b) is a δ-δ cross-sectional view of (a), and (c) is a first pad 103b and It is an enlarged view near 2 pads 121b. It is a figure which shows the relationship between the rotation angle of the 2nd housing | casing 7 in the portable terminal 201, the shape by the side of the 2nd housing | casing 7, clearance, and a load. It is a figure which shows the portable terminal 202 which concerns on 3rd Embodiment, (a) is a top view in a 2nd angle, (b) is ε-ε sectional drawing of the 1st pad 151a vicinity of (a). . It is an expansion perspective view of the 1st pad 151a.

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

  First, with reference to FIG. 1, an outline of the configuration and operation of a mobile terminal 200 according to an embodiment of the present invention will be described.

  As shown in FIG. 1, the mobile terminal 200 is vertically long (the planar shape is rectangular), and includes a first housing 6 that is an operation-side housing having an operation unit 6 a such as a button, and a display unit 7 a such as a liquid crystal on the front. And the second casing 7, the first casing 6, and the second casing 2, which are vertically long (planar shape is rectangular) display-side casings whose back surfaces are superimposed on the front side of the first casing 6. A rotation unit a provided between the first housing 6 and the first housing 6 so as to be rotatable and holdable at a predetermined angle; and the first housing 6. A backlash prevention mechanism 100 provided between the second housings 7 is provided. The rotation unit a is provided on the short side 8c side of the first casing 6 (short side 12c side of the second casing 7).

  Next, the structure of the rotation unit a and the rattling prevention mechanism 100 among the above components will be described with reference to FIGS.

  First, the structure of the rattling prevention mechanism 100 will be described with reference to FIGS.

  As shown in FIG. 1, the rattling prevention mechanism 100 includes pressing means 101 a and 101 b that press the second housing 7.

  In FIG. 1, the pressing means 101 a and 101 b are provided between the short side 8 c that is the short side of the first housing 6 on the side where the rotating unit a is provided and the rotating unit a. More specifically, it is provided along the corner where the short side 8c and the long sides 8a and 8b intersect.

  As shown in FIG. 2, the pressing means 101a and 101b have springs 105a and 105b that press the first pads 103a and 103b and the first pads 103a and 103b, respectively.

  As shown in FIG. 3, the first pad 103 a is provided in a mountain-shaped (dome-shaped) first portion 107 a that comes into contact with the second housing 7 and a lower portion of the first portion 107 a. And a cylindrical second portion 107b that contacts the spring 105a. The 2nd part 107b has the fitting nail | claw 109a from which the one part of the opposing side surface protruded.

  Since the first portion 107a is a portion that comes into contact with the second housing 7, it is desirable that the first portion 107a be formed of a resin having excellent slidability in order to make it less likely to have a rubbing trace toward the second housing 7 side. Specifically, it is desirable to form with POM (PolyOxyMethylene), an elastomer or the like. Further, it is desirable that the cross-sectional shape is a mountain shape (a three-dimensional shape is a dome shape).

  On the other hand, the second portion 107b is preferably formed of a resin having excellent rigidity in order to prevent deformation due to the reaction force of the spring 105a and ensure the engagement with the first housing 6, specifically PC. It is desirable to use (polycarbonate) or ABS (Acrylonitrile Butadiene Styrene) resin.

  The first part 107a and the second part 107b are preferably manufactured by two-color molding of a resin having excellent slidability and a resin having excellent rigidity. If the provided material is used, it is not necessary to perform two-color molding.

  As shown in FIG. 4, the first pad 103 a is engaged with the first housing 6.

  More specifically, as shown in FIG. 4A, the portion of the first housing 6 where the first pad 103a is provided forms the first space 6b, and the first space A through hole 6 c is formed from 6 b toward the surface of the first housing 6. In addition, a protrusion 6d for holding the spring 105a is provided from the bottom surface of the first space 6b toward the through hole 6c.

  The through hole 6c has a shape corresponding to the shape of the first pad 103a (excluding the protruding portion of the fitting claw 109a), but the inner diameter is smaller than the distance between the protruding portions of the fitting claw 109a. It has become.

  When the rattling prevention mechanism 100 is provided in the first housing 6, the spring 105a is inserted into the protrusion 6d, and the first pad 103a is placed over the spring 105a, and the position at which the fitting claw 109a is disposed in the first space 6b. Until it is inserted into the through hole 6c.

  In this state, as shown in FIG. 4B, the first pad 103a can move up and down in accordance with the expansion and contraction of the spring 105a (see the white arrow in FIG. 4B), but the fitting claw 109a is in the first position. Since it is engaged with one casing 6, its movement is restricted.

  Note that the shape and arrangement of the second pad 103b and the spring 105b are the same as those of the first pad 103a and the spring 105a, and a description thereof will be omitted.

  The above is the structure of the rattling prevention mechanism 100.

  Next, the structure of the rotation unit a will be described with reference to FIGS. 1, 5, and 6. FIG.

  As shown in FIG. 5, the rotation unit a includes a base plate 1 provided with a first shaft pin 10 and a second shaft pin 10a that are separated by a predetermined distance, and a first shaft pin 10 and a second shaft pin. 10a, and a movable plate 2 formed with a first hook-like portion 20 and a second hook-like portion 20a, respectively, and the base plate 1 and the movable plate 2 are relatively rotated (rotated). It joins with the attachment shaft 4 as a junction part.

  The movable plate 2 is configured such that at least one of the first hook-shaped portion 20 and the second hook-shaped portion 20a is always engaged with the first shaft pin 10 or the second shaft pin 10a. .

  For example, in FIG. 5A, the first shaft pin 10 and the first hook-shaped portion 20 are engaged, and the second hook-shaped portion 20a is detached from the second shaft pin 10a. However, when the movable plate 2 is rotated 90 degrees to the right from this state, as shown in FIG. 5 (b), the first hook-like portion 20, the second hook-like portion 20a, the first shaft pin 10, and The second shaft pins 10a are engaged together.

  Further, when the movable plate 2 is rotated 90 degrees to the right from the state of FIG. 5B, the second shaft pin 10a and the second hook-shaped portion 20a are engaged as shown in FIG. 5C. In combination, the first hook-shaped portion 20 is detached from the first shaft pin 10.

  On the other hand, in the base plate 1, an arc centered on the first shaft pin 10 and an arc centered on the second shaft pin 10a are intermediate positions between the first shaft pin 10 and the second shaft pin 10a. Guide slits 11 having a shape intersecting with each other are provided.

  On the other hand, the movable plate 2 is provided with a mounting portion (not shown) formed of a circular hole at an intermediate position between the first hook-shaped portion 20 and the second hook-shaped portion 20a, and the mounting shaft 4 is fixed to the mounting portion. And it is comprised so that the inside of the guide slit 11 can be slid in the retaining state.

  An intermediate position between the first shaft pin 10 and the second shaft pin 10a is a substantial midpoint on a straight line connecting the first shaft pin 10 and the second shaft pin 10a. And the intermediate position of the 2nd bowl-shaped part 20a is a substantial midpoint on the straight line which connects the said 1st bowl-shaped part 20 and the 2nd bowl-shaped part 20a.

  Note that the intermediate position between the first shaft pin 10 and the second shaft pin 10a is not necessarily a substantially midpoint on the straight line, and is equal to each other from the first shaft pin 10 and the second shaft pin 10a. It may be a midway distance.

  In addition, the rotation unit a is provided with a spring (not shown) to urge the operation of the movable plate 2 and regulate the operation of the movable plate 2 together with the guide slit 11 and the mounting shaft 4 sliding along the guide slit 11.

  The guide slit 11 is formed with a first recess 11a, a second recess 11b, and a third recess 11c.

  The first recess 11a is one end of an arc centered on the first shaft pin 10 and one end of an arc centered on the second shaft pin 10a. That is, as shown in FIG. 5B, the first hook-shaped portion 20 and the second hook-shaped portion 20a of the movable plate 2 engage with the first shaft pin 10 and the second shaft pin 10a, respectively. The mounting shaft 4 is a recess that is guided by a spring bias (not shown).

  The second recess 11 b is the other end of the arc centered on the first shaft pin 10. That is, as shown in FIG. 5A, when the first shaft pin 10 and the first hook-shaped portion 20 are engaged and the second hook-shaped portion 20a is detached from the second shaft pin 10a. The mounting shaft 4 is a recess that is guided by a spring bias (not shown).

  The third recess 11c is the other end of an arc centered on the second shaft pin 10a. That is, as shown in FIG. 5C, when the second shaft pin 10a and the second hook-shaped portion 20a are engaged and the first hook-shaped portion 20 is detached from the first shaft pin 10. The mounting shaft 4 is a recess that is guided by a spring bias (not shown).

  The guide slit 11 is preferably formed to have a “substantially square shape” formed by combining two 1/4 arcs with the first concave portion 11a as the center.

  More specifically, the guide slit 11 has an arc centered on the first shaft pin 10 and an arc centered on the second shaft pin 10a, the first shaft pin 10 and the second shaft pin 10a. It is formed in a slit shape that intersects with each other at an intermediate position (that is, the first concave portion 11a).

  In the guide slit 11, one inner periphery of the portion where the arcs intersect at the intermediate position forms the first concave portion 11 a as described above, while the other inner periphery forms the convex portion 11 d.

  However, the guide slit 11 is not limited to the slit having the shape as long as the radius of each arc is smaller than the distance between the two first shaft pins 10 and the second shaft pin 10a.

  The base plate 1 is obtained by press-working a metal plate such as a stainless steel plate and is attached to the first housing 6 by screws or the like (not shown).

  The movable plate 2 is also formed by pressing a metal plate such as a stainless steel plate, and is attached to the second casing 7 with a screw or the like (not shown).

  Note that the rotating unit a is configured so that the first housing 6 and the second housing 7 overlap each other as shown in FIG. The housing 6 and the second housing 7 are provided.

  More specifically, in the base plate 1, the first recess 11a, the second recess 11b, and the third recess 11c are respectively a long side 8a, a short side 8d, and a short side 8c of the first housing 6. The movable plate 2 is attached to the first casing 6 so as to face each other (see FIG. 1), and the movable plate 2 has a first shaft pin in a state where the first casing 6 and the second casing 7 overlap each other. 10 and the first hook-shaped portion 20 are engaged, the second hook-shaped portion 20a is detached from the second shaft pin 10a, and the mounting shaft 4 is guided to the second recess 11b. It is attached to the second casing 7.

  Note that a torsion spring is used as a spring (not shown), and the curled portion of the movable side arm is engaged with the mounting shaft 4 while the curled portion of the fixed side arm is integrally pressed to the back side of the base plate 1. It is engaged or locked to a molded shaft portion (not shown) with a hook.

  The rotation unit a is structurally configured such that the first and second (a pair of) first shaft pins 10 and the second shaft pins 10a in the base plate 1 are spaced apart from each other and the first bowl-shaped portion 20 in the movable plate 2. And the distance between the centers of the second hook-shaped portions 20a is equal, and the mounting shaft 4 on the back surface of the movable plate 2 is at an intermediate position between the first hook-shaped portions 20 and the second hook-shaped portions 20a. The center of the first recess 11a in the slit 11 is located between the first shaft pin 10 and the second shaft pin 10a.

  The distance between the first shaft pin 10 and the second shaft pin 10a and the first recess 11a, the distance between the first shaft pin 10 and the second recess 11b, and the second shaft pin 10a and the third recess The intervals between the recesses 11c are equal, and the distances between the first recess 11a, the second recess 11b, and the third recess 11c are also equal.

  The above is the structure of the rotating unit a.

  Next, the operation of the rattling prevention mechanism 100 when the second housing 7 is rotated relative to the first housing 6 using the rotation unit a will be described with reference to FIGS. .

  As shown in FIGS. 6 and 7, the mobile terminal 200 is rotated into the following three states by rotating the second housing 7 relative to the first housing 6 using the rotation unit a. Two housings 7 can be held.

(1) A state in which the first housing 6 and the second housing 7 overlap each other (first angle, 0 degree).
(2) A state in which the second casing 7 is rotated 90 degrees to the right from the first angle, and the portable terminal 200 has a substantially T-shape as a whole (second angle, 90 degrees ).
(3) The second casing 7 is rotated 180 degrees to the right from the first angle, and the first casing 6 and the second casing 7 are vertically connected (first 3 angles, 180 degrees).

  Hereinafter, each state will be described in detail.

[First angle]
As shown in FIGS. 6A and 7A, the first angle is the state in which the first housing 6 and the second housing 7 overlap each other, more precisely, the area of the overlapping portion is the largest. This is a compact state in which the operation unit 6a of the first housing 6 is not exposed, so that the display unit 7a of the second housing 7 can be used in a vertically long state or a horizontally long state.

  In the first angle, in the rotation unit a, the first hook-shaped portion 20 of the movable plate 2 is engaged with the first shaft pin 10 of the base plate 1, and the second hook-shaped portion 20a is the second hook. It is in a state of being detached from the shaft pin 10a (see FIG. 5A).

  Here, as shown in FIG. 7A, at the first angle, the first pads 103a and 103b (103b not shown) are pressed by the springs 105a and 105b (105b not shown). The short side 12c of the second housing 7 is pressed.

  The pressed second housing 7 is inclined, and the short side 12d facing the short side 12c comes into contact (pressed) with the short side 8d of the first housing 6.

  In this state, the first housing 6 and the second housing 7 are in contact with the upper portion (short sides 8c and 12c side) via the first pads 103a and 103b, and the lower portion (short sides 8d and 12d side). Since the first pads 103a and 103b are in direct contact with the pressing force of the first pads 103a and 103b, it is possible to prevent rattling while securing a clearance due to the provision of the rotating unit a.

[Second angle]
As shown in FIGS. 6B and 7B, the second angle is a state in which the second housing 7 is rotated 90 degrees to the right from the first angle.

  More specifically, when the second casing 7 is rotated clockwise from the first angle, the movable plate 2 is rotated 90 degrees around the first axis pin 10 in the direction of the second axis pin 10a. Then, the second hook-shaped portion 20a is engaged with the second shaft pin 10a, and at the same time, the mounting shaft 4 is guided to the first recess 11a of the guide slit 11 (see FIG. 5B).

  Then, the portable terminal 200 is converted from an overlapping posture such as the first angle to a state in which the portable terminal 200 as a whole has a substantially T shape, and is held in this state.

  When the second casing 7 is in this posture, for example, it is suitable for receiving a television broadcast or displaying a website on the mobile terminal 200.

  Here, as shown in FIG. 7B, at the second angle, the first pads 103a and 103b (103b not shown) are pressed by the springs 105a and 105b (105b not shown). The long side 12b of the second housing 7 is pressed.

  The pressed second housing 7 is inclined, and the long side 12a facing the long side 12b contacts the intersecting portion 8e (see FIG. 1) of the long side 12a in the first housing 6.

  In this state, the first housing 6 and the second housing 7 are in contact with each other at the top (short side 8c, long side 12b side) via the first pads 103a, 103b, and below (intersection 8e, long side). 12a side) is in direct contact with the pressing force of the first pads 103a and 103b, so that it is possible to prevent rattling while securing the clearance due to the provision of the rotating unit a.

[Third angle]
As shown in FIGS. 6C and 7C, the third angle is a state in which the second casing 7 is rotated 180 degrees to the right from the first angle. That is, when the second casing 7 is further rotated clockwise from the second state, the first hook-shaped portion 20 is detached from the first shaft pin 10, and the movable plate 2 is moved to the second shaft. It rotates around the pin 10a.

  Along with this rotation, the mounting shaft 4 is guided to the third recess 11c in the guide slit 11 (see FIG. 5C), so that the mobile terminal 200 is the upper end of the first housing 6 as the mobile phone. The lower end region of the second casing 7 is overlapped and connected to the region, so that the overall shape is the longest.

  This state is suitable for using a mobile phone in the same way as an existing phone, for example.

  Here, as shown in FIG. 7C, at the third angle, the first pads 103a and 103b (103b not shown) are pressed by the springs 105a and 105b (105b not shown). The portion of the second housing 7 that intersects the short side 8c of the first housing 6 is pressed.

  The pressed second casing 7 is inclined, and the short side 12c of the second casing 7 and the intersecting portion 8e of the short side 12c in the first casing 6 are in contact (pressed).

  In this state, the first housing 6 and the second housing 7 are in contact with each other at the upper part (short side 8c side) via the first pads 103a and 103b, and the lower part (short side 12c side) is the first pad 103a. Since the direct contact is made by the pressing force of 103b, rattling can be prevented while securing the clearance due to the provision of the rotating unit a.

  As described above, according to the first embodiment, the mobile terminal 200 is provided between the first housing 6, the second housing 7, and between the first housing 6 and the second housing 7. A rotation unit a that rotatably connects one housing 6 and the second housing 7, and a rattling prevention mechanism 100 provided between the first housing 6 and the second housing 7. The first pad 103a, 103b of the rattling prevention mechanism 100 presses the second housing 7 to incline the second housing 7, and a part of the second housing 7 (the first pad 103a , 103b is in contact with the first housing 6 (pressed).

  Therefore, rattling can be prevented while securing the clearance due to the provision of the rotation unit a.

  Next, the portable terminal 201 according to the second embodiment will be described with reference to FIGS.

  The mobile terminal 201 according to the second embodiment includes a second casing as a constituent element of the rattling prevention mechanism 101 in the first embodiment between the first casing 6 and the second casing 7. The second pads 121a and 121b and the third pad 123 are provided in the portion that comes into contact when the 7 is inclined.

  In the second embodiment, elements having the same functions as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  First, the structure of the mobile terminal 201 will be described with reference to FIGS.

  As shown in FIG. 8 and FIG. 9, the rattling prevention mechanism 101 of the mobile terminal 201 is located at a portion where the first housing 6 and the second housing 7 come into contact when the second housing 7 is tilted. It has the 2nd pads 121a and 121b and the 3rd pad 123 which were provided.

  More specifically, the second pads 121a and 121b are quadrangular columnar bodies with rounded corners, and grooves 125a and 125b are provided at the upper ends, respectively.

  The second pads 121a and 121b are respectively along the inner side (rotation unit a side) where the intersecting portion 8e and the long sides 8a and 8b intersect, and the groove portions 125a and 125b are parallel to the long sides 8a and 8b. It is provided in the 1st housing | casing 6 so that it may become.

  In addition, as shown in FIG. 9, the 2nd pad 121b is fixed to the 1st housing | casing 6 with the double-sided tape 127b. Although not shown, the second pad 121a is similarly fixed to the first housing 6 with double-sided tape.

  On the other hand, the third pad 123 has a strip shape corresponding to the shape of the short side 8d of the first casing 6, and the first casing 6 is provided with a double-sided tape (not shown) along the short side 8d. It is fixed to.

  The material constituting the second pad 121 and the third pad 123 is preferably a material having excellent slidability. For example, the material is composed of POM and elastomer like the first portion 107a of the first pad 103a. Is desirable.

  Next, the operation of the rattling prevention mechanism 101 when the second housing 7 is rotated relative to the first housing 6 using the rotation unit a will be described with reference to FIGS. .

  As shown in FIGS. 10 to 12, the mobile terminal 201, like the mobile terminal 200, rotates the second casing 7 relative to the first casing 6 using the rotation unit a, thereby It can be held in three states of 1 angle, 2nd angle, and 3rd angle.

  Hereinafter, each state will be described in detail.

[First angle]
As shown in FIG. 10, at the first angle, the first pads 103a (not shown in FIG. 12) and 103b are pressed by the springs 105a (not shown in FIG. 12) and 105b, so that the second housing 7 short side 12c is pressed.

  The pressed second housing 7 is inclined with the mounting shaft 4, which is a joint portion of the base plate 1 and the movable plate 2 in the rotating unit a, as a fulcrum, and the short side 12 d is in contact with the third pad 123.

  That is, in the above operation, the mounting shaft 4 serves as a fulcrum, the first pads 103a and 103b serve as a force point, and the third pad 123 serves as an action point. The three cases support the first housing 6 and the second housing 7. doing.

  Therefore, rattling can be prevented while securing the clearance due to the provision of the rotation unit a.

  Further, in this state, the first casing 6 and the second casing 7 are in contact with each other via the first pads 103a and 103b and the third pad 123. Can prevent scratches and paint peeling.

[Second angle]
As shown in FIG. 11, at the second angle, the first pads 103 a and 103 b are pressed by the springs 105 a and 105 b to press the long side 12 b of the second housing 7.

  The pressed second housing 7 is inclined with the mounting shaft 4 as a fulcrum, and the long side 12a (see FIG. 7) is in contact with the second pads 121a and 121b.

  That is, in the above operation, the mounting shaft 4 is the fulcrum, the first pads 103a and 103b are the force points, and the second pads 121a and 121b are the action points. The first housing 6 and the second housing 7 are the three points. Support.

  Therefore, rattling can be prevented while securing the clearance due to the provision of the rotation unit a.

  Further, in this state, the first casing 6 and the second casing 7 are in contact with each other through the first pads 103a and 103b and the second pads 121a and 121b. Can prevent scratches and paint peeling.

[Third angle]
As shown in FIG. 12, at the third angle, the first pads 103a (not shown in FIG. 12) and 103b are pressed by the springs 105a (not shown in FIG. 12) and 105b, so that the second housing The part of the body 7 that intersects the short side 8c is pressed.

  The pressed second casing 7 is inclined with the mounting shaft 4 as a fulcrum, and the short side 12c contacts the second pads 121a (not shown) and 121b.

  That is, in the above operation, as with the second angle, the mounting shaft 4 serves as a fulcrum, the first pads 103a and 103b serve as power points, and the second pads 121a and 121b serve as action points. 6 and the second casing 7 are supported.

  Therefore, rattling can be prevented while securing the clearance due to the provision of the rotation unit a.

  In this state, the first casing 6 and the second casing 7 are in contact with each other through the first pads 103a and 103b and the second pad 121, and thus do not directly contact each other, and the casings are rubbed with each other. Can prevent scratches and paint peeling.

  Note that the first pads 103a and 103b may be in contact with the second housing 7 even at angles other than the first to third angles, specifically at the rotating angle. When the first pads 103a and 103b and the second casing 7 slide, scratches may occur on the second casing 7 side.

  For this reason, in the present invention, the first pads 103a and 103b are made of a material having excellent slidability, and the coil spring is incorporated and moved to suppress the scratches.

  Needless to say, the spring coefficient of the coil spring and the amount of deflection at each angle, that is, the amount of protrusion of the first pads 103a and 103b and the amount of interference with the second casing 7 need to be set appropriately. is there.

  Further, as shown in FIG. 13, the portion of the second housing 7 that contacts the first pads 103a and 103b is formed in a slope shape to ensure the rotational sliding property on the second housing 7 side. Is desirable.

  Specifically, as shown in FIG. 13, the shape on the second housing 7 side is 0 ° (first angle), 90 ° (second angle), and 180 ° (third angle). The shape is such that the first pad 103a and the second housing 7 abut against each other, and the slope shape is such that the clearance gradually increases when rotating from there. When it approaches 0 °, 90 °, and 180 ° again, the slope shape is such that the clearance decreases.

  By adopting such a structure, it is possible to ensure the rotational slidability on the second housing 7 side, and as an additional effect, an effect like a brake when approaching 0 °, 90 °, and 180 °. Can be rotated slowly at each angle.

  Thus, according to the second embodiment, the mobile terminal 201 is provided between the first housing 6, the second housing 7, and between the first housing 6 and the second housing 7, A rotation unit a that rotatably connects the first housing 6 and the second housing 7, and a rattling prevention mechanism 101 provided between the first housing 6 and the second housing 7 are provided. The first pad 103a, 103b of the rattling prevention mechanism 101 presses the second housing 7 to incline the second housing 7, and a part of the second housing 7 is moved to the first The housing 6 is brought into contact.

  Accordingly, the same effects as those of the first embodiment are obtained.

  Further, according to the second embodiment, in the mobile terminal 201, the rattling prevention mechanism 101 includes the second pads 121a and 121b and the third pad 123.

  Therefore, the first housing 6 and the second housing 7 do not directly contact each other, and it is possible to prevent the housings from being scratched or peeled off.

  Next, a third embodiment will be described with reference to FIGS.

  In the mobile terminal 202 according to the third embodiment, in the first embodiment, grooves 153a and 153b are provided on the upper end surfaces of the first pads 151a and 151b, and the first pads 151a and 151b of the second housing 7 are provided. A convex portion is provided at a portion in contact with.

  Note that in the third embodiment, elements that perform the same functions as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 14, the mobile terminal 202 has a groove 153 a provided on the upper end surface of the first pad 151 a (surface that contacts the second housing 7).

  The groove portion 153a is provided in the same direction as the groove provided in the second pad 121, that is, parallel to the long sides 8a and 8b of the first housing 6, and the side surface in the longitudinal direction is from the bottom surface side to the top surface side. It has an inclined shape so as to spread.

  On the other hand, on the second housing 7 side, a fourth pad 161a is provided at a portion that contacts the first pad 151a at the second angle.

  The 4th pad 161a has the convex part 163a of the shape corresponding to the groove part 153a, and the convex part 163a is engaged with the groove part 153a in a 2nd angle.

  In FIG. 14, only the structure on the right first pad 151a side is shown, but the structure on the left first pad side is the same.

  That is, although not shown, a groove portion 153b is provided on the upper end surface of the left first pad 151b, and the second housing 7 side has a fourth portion in contact with the first pad 151b at a second angle. A pad 161b is provided. The fourth pad 161b has a convex portion 163b having a shape corresponding to the groove portion 153b, and the convex portion 163b is engaged with the groove portion 153b at the second angle.

  In FIG. 14, only the structure of the convex portion 163a provided at the portion that contacts the first pad 151a at the second angle is disclosed, but the first pad 151a at the first angle and the third angle is disclosed. Similarly, a protruding portion (not shown) that engages with the groove portion 153a is also provided on the contacting portion.

  As described above, the groove portion 153a is provided in the first pad 151a, and the convex portion 163a is engaged with the portion that contacts the first pad 151a at each angle, so that the direction orthogonal to the groove portion 153a, that is, the rotation direction is obtained. The backlash can be suppressed.

  The groove portion 153a has a shape in which the side surface in the longitudinal direction is inclined so as to spread from the bottom surface side to the upper end surface side, so that it does not impair slidability during rotation (impedes sliding). Not)

  Thus, according to the third embodiment, the mobile terminal 202 is provided between the first housing 6, the second housing 7, and between the first housing 6 and the second housing 7, A rotation unit a that rotatably connects the first housing 6 and the second housing 7, and a rattling prevention mechanism 102 provided between the first housing 6 and the second housing 7 are provided. The first pads 151a and 151b of the rattling prevention mechanism 102 press the second housing 7 to incline the second housing 7, and part of the second housing 7 is moved to the first The housing 6 is brought into contact.

  Accordingly, the same effects as those of the first embodiment are obtained.

  Further, according to the third embodiment, the first pads 151a and 151b have the groove portions 153a and 153b on the upper end surface, and the second housing 7 has the first pad 151a at the first to third angles. , 151b has protrusions that engage with the grooves 153a and 153b.

  Therefore, it is possible to further suppress backlash in the rotational direction as compared with the first embodiment.

  In the above-described embodiment, the case where the rattling prevention mechanism is applied to a mobile terminal has been described. However, the present invention is not limited to this and is used by relatively slidingly rotating two housings. Applicable to all devices.

a rotating unit 1 base plate 2 movable plate 4 mounting shaft 10, 10a first and second shaft pin 11 guide slits 11a, 11b, 11c first, second and third recesses 20, 20a first and second Gutter-like portion 6 First housing 7 Second housing 100 Anti-rattle mechanism 101a, 101b Pressing means 103a, 103b First pad 105a, 105b Spring 121a, 121b Second pad 123 Third pad

Claims (20)

A first housing and a second housing;
It is provided between the first casing and the second casing, and connects the first casing and the second casing so that they can rotate relative to each other and can be held at a predetermined rotation angle. A rotating unit;
Provided between the first casing and the second casing and pressed against the first casing by pressing the second casing that is held at the predetermined rotation angle. And pressing means for bringing a part other than the pressed part of the second casing into contact with the first casing,
I have a,
The first casing and the second casing have a rectangular planar shape,
The predetermined rotation angle is
A first angle in which the first casing and the second casing overlap each other;
A second angle in a T-shaped state rotated 90 degrees from the state held at the first angle;
A third angle in the open state connected in the longitudinal direction rotated 180 degrees from the state held at the first angle;
Have
The pressing means is
A first pad movably engaged with the first housing;
A spring provided between the first pad and the first housing and pressing the first pad toward the second housing;
Mobile terminal, characterized in that it have a. The first pad has a groove;
The second housing, the first to be provided in the third portion to be pressed against the first pad at an angle, to claim 1, characterized in that a convex portion having a shape corresponding to the groove The portable terminal described. A second pad provided at a portion where the first housing and the second housing are in contact with each other at the second angle;
In the first angle, the first housing and the second one of the claims 1 or 2, characterized in that it has a third pad housing is provided in a portion in contact with, the The portable terminal as described in. The portable terminal according to claim 3 , wherein the second pad is provided at a portion where the first housing and the second housing are in contact with each other at the third angle. The rotating unit is provided on one short side of the rectangle,
The portable terminal according to any one of claims 1 to 4 , wherein the first pad is provided between the rotating unit and the one short side in the first casing. The mobile terminal according to claim 5 , wherein the first pad is provided along two corners on the one short side. The second pad is provided so as to be along a portion where the first housing and the second housing intersect at the second angle and the third angle. Item 7. The mobile terminal according to any one of Items 3 to 6 . The mobile terminal according to claim 7 , wherein the second pad is provided at two locations along two long sides of the first casing. The mobile terminal according to any one of claims 3 to 8 , wherein the third pad is provided on the other short side of the rectangle in the first housing. The rotating unit is
A base plate,
A movable plate joined to rotate relative to the base plate;
Have
The portable terminal according to any one of claims 1 to 9 , wherein the joined portion is configured to be a fulcrum when the pressing means tilts one of the housings. . The rotating unit is
A base plate provided with first and second shaft pins spaced apart from each other by a predetermined distance, and a movable plate formed with first and second hook-shaped portions that engage with the first and second shaft pins, respectively. And the base plate and the movable plate are joined so as to rotate relative to each other,
When the movable plate rotates in one direction, the first shaft pin and the first hook-shaped portion engage with each other, and the second hook-shaped portion disengages from the second shaft pin. When rotating in the direction, the second shaft pin and the second hook-shaped portion are engaged with each other, and the first hook-shaped portion is detached from the first shaft pin. The mobile terminal according to claim 10 , wherein An attachment shaft for joining the base plate and the movable plate;
The base plate has a guide slit having a shape in which an arc centered on the first shaft pin and an arc centered on the second shaft pin intersect at an intermediate position between the first and second shaft pins. Is provided,
The movable plate is provided with a mounting portion at an intermediate position between the first and second hook-shaped portions, and the mounting shaft is fixed to the mounting portion and is movable in the guide slit. The mobile terminal according to claim 11 , wherein the mobile terminal is arranged. The guide slit includes a first recess in which the mounting shaft is guided by a spring bias when the first and second shaft pins are engaged with the first and second hook-shaped portions, respectively. When the movable plate is rotated 90 degrees in one direction from the state where the first and second shaft pins are engaged with the first and second hook-shaped portions, the mounting shaft is spring-loaded. A second recess guided by force;
The mounting shaft is spring-biased when the movable plate rotates 90 degrees in the other direction from the state where the first and second shaft pins are engaged with the first and second hook-shaped portions, respectively. The mobile terminal according to claim 12 , wherein a third concave portion guided by each of the first and second concave portions is formed. The second housing is provided between the first housing and the second housing which are connected to each other so as to be rotatable relative to each other and to be held at a predetermined rotation angle, and are held at the predetermined rotation angle. of the housing by pressing is inclined with respect to the first housing, have a said second housing, a pressing means for contacting the portion other than the pressing portion to the other of the first housing ,
The first casing and the second casing have a rectangular planar shape,
The predetermined rotation angle is
A first angle in which the first casing and the second casing overlap each other;
A second angle which is a T-shaped state rotated 90 degrees from the state held at the first angle;
A third angle which is an open state connected in the vertical direction rotated 180 degrees from the state held at the first angle;
Have
The pressing means is
A first pad movably fitted to the first housing;
A spring provided between the first pad and the first housing and pressing the first pad toward the second housing;
Mobile terminal of backlash preventing mechanism, characterized in that the have a. The backlash prevention mechanism of the mobile terminal according to claim 14 , wherein the first pad has a fitting claw for preventing the dropout. The first pad has a first portion that contacts the second housing, and a second portion that is provided in the first portion and is movably engaged with the first housing,
The first part and the second part are such that the first part is made of a material having relatively excellent sliding properties, and the second part is made of a material having relatively high rigidity. The backlash prevention mechanism of the portable terminal as described in any one of Claim 14 or 15 characterized by these. A second pad provided at a portion where the first housing and the second housing are in contact with each other at the second angle;
A third pad provided at a portion where the first housing and the second housing are in contact with each other at the first angle;
The backlash prevention mechanism of the portable terminal according to any one of claims 14 to 16 , characterized by comprising: 18. The portable terminal according to claim 17 , wherein the second pad is provided at a portion where the first housing and the second housing are in contact with each other at the third angle. mechanism. The first pad has a groove;
The mobile phone according to any one of claims 14 to 18 , further comprising a convex portion provided at a portion pressed by the first pad of one of the housings and having a shape corresponding to the groove portion. A rattling prevention mechanism for terminals. A mobile terminal attitude changing method using the mobile terminal according to any one of claims 1 to 13 .

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