JP2010114617A - Cable structure in turnable hinge part and electronic equipment using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the occurrence of a disconnection or the like by reducing load on a cable via a turnable hinge part. <P>SOLUTION: This cable structure composed of a plurality of cables 27 for performing an electrical connection between a first housing 6 and a second housing 7 connected turnably has a first binding means (29) and a second binding means (31) for binding the plurality of cables into one at the first housing side and the second housing side, respectively, and third binding means (28, 30 and 33) for binding the plurality of cables (27) between the first binding means (29) and the second binding means (31) into at least two cable bundles, wherein the length of an outer cable bundle is set longer than that of an inner cable bundle due to turning out of the at least two cable bundles. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device such as a mobile phone, a PDA (Personal Digital Assistant), and a notebook computer, and more particularly to a structure of a cable used for a rotating hinge portion of the electronic device.

  In recent years, many portable devices such as mobile phones are commercially available that can be displayed horizontally or vertically by rotating, as well as those that open and close the display unit. An example of a structure for connecting the display units so as to be rotatable is disclosed in Patent Document 1 and the like.

JP2008-035022

  In such an electronic device in which the two casings rotate relatively, a cable that electrically connects the electronic circuits in the respective casings must be arranged through the rotating hinge portion. In such a configuration, the cable is greatly bent or twisted due to the rotation of the housing, and thus a device for reducing the load on the cable and suppressing the occurrence of disconnection is necessary.

  The present invention has been made in view of the above problems, and an object of the present invention is to reduce the load on the cable passing through the rotating hinge and reduce the occurrence of disconnection and the like, and an electronic apparatus using the same Is to provide.

  A cable structure according to the present invention is a cable structure having a plurality of cables for making an electrical connection between a first housing and a second housing that are rotatably connected. A first bundling means and a second bundling means for bundling one cable on each of the first casing side and the second casing side, and between the first bundling means and the second bundling means A third bundling means for bundling the plurality of cables into at least two cable bundles, and of the at least two cable bundles, the length of the cable bundle on the outer side of the cable bending by the rotation is set on the inner side. It is characterized by being set longer than the length of the cable bundle.

  In the electronic apparatus according to the present invention, the first casing and the second casing are connected by the rotating hinge portion, and the first casing and the second casing are closed at an angle of 0 °. , An electronic device that takes at least three position states: a T-shaped state at an angle of 90 ° and a vertically long state at an angle of 180 °, the first casing and the second through the rotating hinge portion. A plurality of cables for making an electrical connection with the first housing, the first binding means for bundling the plurality of cables into one on each of the first housing side and the second housing side And second bundling means; and third bundling means for bundling the plurality of cables between the first bundling means and the second bundling means into at least two cable bundles, and the second bundling means Is fixed to the second casing side and is connected to the at least two cable bundles. Characterized in that set to be longer than the length of the inner cable bundle length of cable bundle outside of the cable bend by the rotation.

  According to the present invention, it is possible to reduce the load on the cable passing through the rotating hinge portion and suppress the occurrence of disconnection or the like.

  First, a mobile phone is taken as an example of an electronic device, and the configuration of the rotating hinge portion will be briefly described. In addition, this invention is not limited to this rotation hinge part.

1. FIG. 1 is an exploded perspective view showing an essential part of a rotating hinge part of a mobile phone according to an embodiment of the present invention, FIG. 2 is a front view of the mobile phone according to this embodiment in a closed state, and FIG. 2 is a detailed view of the rotating hinge portion in the state of FIG. 2, FIG. 4 is a front view of the mobile phone according to the present embodiment in a horizontally long state, FIG. 5 is a detailed view of the rotating hinge portion in the state of FIG. FIG. 7 is a detailed view of the rotating hinge part in the state of FIG.

  Here, the first case corresponds to the operation side case 6 of the mobile phone, and the second case corresponds to the display side case 7 of the mobile phone. The rotating hinge portion has a structure as shown in FIGS. 2, 4 and 6. Hereinafter, an operation in which the display-side housing and the operation-side housing rotate while being relatively shifted is referred to as “rotation”.

  As shown in FIG. 1, the case coupling device 50 according to the present embodiment includes a base plate 1 attached to the operation side case 6 and a movable plate 2 attached to the display side case 7. The base plate 1 is provided with first and second shaft pins 10a and 10b that are separated from each other by a predetermined distance in the longitudinal direction of the housing, and the movable plate 2 includes first and second shaft pins 10a and 10b. First and second hook-shaped portions 20a and 20b that can be engaged with each other are formed. As will be described later, the base plate 1 and the movable plate 2 are connected via a spring 3 and an attachment shaft 4 and operate so as to rotate relatively.

  The mounting shaft 4 is a short hollow (pipe shape) having a flange portion 40 at one end, the shaft portion passes through the curled portion of the movable arm 30 of the spring 3, and the shaft end passes through the guide slit 11 of the base plate 1. It slidably penetrates and is fixed to a mounting portion 21 formed at a substantially intermediate position between the flanges 20a and 20b of the movable plate 2. As a result, the mounting shaft 4 is fixed to the mounting portion 21 and can slide in the guide slit 11 in a retaining state.

  The guide slit 11 formed in the base plate 1 has an arc between the first and second shaft pins 10a and 10b, with an arc centered on the first shaft pin 10a and an arc centered on the second shaft pin 10b. It has a shape that intersects at a substantially intermediate position, and has three concave portions 11a to 11c and one convex portion 11d. The intermediate position between the first and second shaft pins 10a and 10b is not necessarily a substantially midpoint on the straight line, and may be an intermediate point equidistant from the shaft pins 10a and 10b. . As described above, the mounting shaft 4 is slidable along the guide slit 11.

  Further, restricting pieces 14a and 14b are provided at both ends in the longitudinal direction of the base plate 1 and in the vicinity of the shaft pins 10a and 10b. The restricting pieces 14a and 14b are engaged with the shaft pins 10a and 10b corresponding to the flanges 20a and 20b of the movable plate 2, and the shaft pins 10a and 10b corresponding to the flanges 20a and 20b. It has the function of regulating the movement of the movable plate 2 in a state that does not prevent it from leaving.

  As shown in FIG. 1, the spring 3 biases the movable plate 2 via the mounting shaft 4, and regulates the operation of the movable plate 2 together with the guide slit 11 and the mounting shaft 4 that slides along the guide slit 11. A torsion (torsion) spring is used as the spring 3, and the curled portion of the movable arm 30 is engaged with the mounting shaft 4, while the curled portion of the fixed arm 31 is provided on the back side of the base plate 1. The hooked shaft 13 is locked.

  The guide slit 11 is formed in a “<” shape having first to third recesses 11 a to 11 c.

  The first recess 11a is one end of an arc centered on the shaft pin 10a and one end of an arc centered on the shaft pin 10b. As shown in FIGS. 4 and 5, when the first and second flanges 20a and 20b of the movable plate 2 are engaged with the first and second shaft pins 10a and 10b, respectively, the mounting shaft 4 Is a recess guided by the bias of the spring 3.

  The second recess 11b is the other end of the arc centered on the shaft pin 10a. When the movable plate 2 is rotated 90 ° about the first shaft pin 10a, the mounting shaft 4 of the spring 3 is It is a recessed part guided by urging | biasing. For example, the state shown in FIGS. 4 and 5 from the state where the hook-shaped portion 20a is engaged with the corresponding shaft pin 10a and the other hook-shaped portion 20b is not engaged (the closed state shown in FIGS. 2 and 3). In this way, each hook-like portion 20a, 20b is rotated to a state where it is engaged with the corresponding shaft pin 10a, 10b (here, clockwise), or vice versa (counterclockwise). In the rotation), the mounting shaft 4 is a recess guided by the bias of the spring 3.

  The 3rd recessed part 11c is the other edge part of the circular arc centering on the axial pin 10b. As shown in FIG. 5, the movable plate 2 moves in the other direction (clockwise direction) around the second shaft pin 10b from the state in which the hook-shaped portions 20a, 20b are engaged with the corresponding shaft pins 10a, 10b. The mounting shaft 4 is a recess that is guided by the bias of the spring 3 when rotated 90 ° (see FIGS. 6 and 7).

  In the closed state in which the operation-side casing 6 and the display-side casing 7 overlap each other at an angle of 0 ° shown in FIGS. 2 and 3, the position of the mounting shaft 4 of the movable plate 2 is at the position of the second recess 11b. . Further, in the T-shaped state in which the display side housing 7 is horizontally long at an angle of 90 ° with respect to the operation side housing 6 shown in FIGS. 4 and 5, the position of the mounting shaft 4 of the movable plate 2 is the first position. It is in the position of the recess 11a. Further, as shown in FIGS. 6 and 7, in the vertically long state in which the display-side housing 7 is rotated 180 degrees with respect to the operation-side housing 6 and opened, the position of the mounting shaft 4 is at the position of the third recess 11c. . As described above, the movable plate 2 moves through the mounting shaft 4 guided by the guide slit 11, whereby the display side housing 7 can be moved to each state with respect to the operation side housing 6.

2. Cable Structure As described above, the display-side housing 7 rotates with respect to the operation-side housing 6, and the attachment shaft 4 of the rotating hinge portion accordingly moves between the states shown in FIGS. 3, 5, and 7. Move positionally. When the cable passes through the hollow portion of the mounting shaft 4 that moves in this way, the cable also moves on the same surface as the base plate 1 along with the mounting shaft 4. According to one embodiment of the present invention, it is possible to reduce the load of bending and twisting of the cable generated by the rotation of the casing, and to suppress the occurrence of disconnection. Hereinafter, the cable wired to the above-mentioned rotation hinge part will be described in detail as an example.

  FIG. 8 is a schematic configuration diagram showing a cable structure according to an embodiment of the present invention. The cable structure according to the present embodiment has a configuration in which a plurality of fine coaxial cables 27 are selectively bundled, and one end of the plurality of fine coaxial cables 27 is a first casing (operation-side casing 6). The other end of the first connector 25 is connected to the second connector 26 connected to the electronic circuit of the second casing (display-side casing 7).

  The selectively bundled cables are arranged via a rotation hinge portion that rotatably connects the operation side housing 6 and the display side housing 7. Hereinafter, a sleeve is used as an example of a bundling means for bundling a plurality of thin coaxial cables 27 into one or a plurality of cable bundles. As will be described later, the hardness or flexibility of the sleeve differs depending on the portion used.

  According to the present embodiment, the plural thin coaxial cables 27 sandwich the first sleeve 29 (first bundling means) bundled together on the first connector 25 side, the first sleeve 29 and the mounting shaft 4. A plurality of second sleeves 30 (third bundling means) provided on the opposite side, a third sleeve 31 (second bundling means) bundled together on the second connector 26 side, a second sleeve 30 and a third It is selectively bundled by a bending sleeve 33 (third bundling means) between the sleeve 31 and the sleeve 31.

  Specifically, the plurality of thin coaxial cables 27 between the first sleeve 29 and the third sleeve 31 are bundled into a plurality of bundles, and each bundle is bundled with the second sleeve 30 and the bending sleeve 33. ing. The sleeves 29, 30 and 31 are made of a material that is hard enough not to bend, and the bending sleeve 33 has a lower hardness than the sleeves 29, 30, and 31 and is sufficient for bending the cable as the mounting shaft 4 moves. It is made of a flexible material that can handle the above.

  Further, the plurality of bundles of the thin coaxial cables 27 between the first sleeve 29 and the third sleeve 31 are arranged such that the length of the bundle on the outside of the bending of the cable accompanying the movement of the mounting shaft 4 is inward. It is formed longer than the length of the bundle. As a result, it is possible to reduce the load on the cable in the state where the bending is the largest.

  Further, the cable portion 28 passing through the mounting shaft 4 of the rotating hinge portion is flexible so that the bending resistance and the torsional resistance are sufficiently low as compared with other portions (particularly portions located on both sides of the mounting shaft 4). Bundled by a sleeve. In order to achieve sufficiently low bending resistance and torsion resistance, it is desirable to bundle a plurality of fine coaxial cables 27 into a plurality of bundles by a flexible sleeve having a low bending resistance. Here, the cable portions 28 of the plurality of thin coaxial cables 27 are divided into two bundles, each of which is bundled by a flexible sleeve, and further bundled by the second sleeve 30 and the bending sleeve 33 described above. Yes. Therefore, each cable bundle can be bent individually according to the degree of bending of the cable, and the load on the cable can be reduced. Here, an example in which the cable bundles are separated is shown, but the second sleeve 30 and / or the bending sleeve 33 for binding these cable bundles may be combined.

  However, the number of bundles is not limited to two. For example, the cable portion 28 may be bundled by one flexible sleeve, or may be divided into three or more bundles, and each may be bundled by a flexible sleeve. Furthermore, it is possible to pass the cable portions 28 of a plurality of thin coaxial cables directly through the mounting shaft 4 without using a flexible sleeve.

  A first sleeve 29 and a second sleeve 30 that are sufficiently hard so as not to bend are arranged in front and rear of the cable portion 28 bundled by the flexible sleeve (front and rear of the portion corresponding to the mounting shaft 4). Thus, the bending of each thin coaxial cable 27 at the front and rear positions of the mounting shaft 4 is suppressed. The first sleeve 29 located on the first connector 25 side bundles a plurality of fine coaxial cables 27 apart from the first connector by a predetermined distance. Further, the second sleeve 30 can be bundled with a sufficient hardness so that a plurality of cable bundles (two bundles here) are not bent.

  Further, a third sleeve 31 is provided for bundling a plurality of thin coaxial cables 27 at a predetermined distance from the second connector 26. It is desirable that the third sleeve 31 has a sufficiently high hardness so as not to bend. The third sleeve 31 is fixed by an arbitrary fixing means 32 as will be described later. By providing the third sleeve 31 having a hardness that does not bend, the cables 27 move greatly toward each other near the second connector 26 side in accordance with the change in the three states of 0 degree, 90 degrees, and 180 degrees. Can be suppressed.

  The plurality of thin coaxial cables 27 between the second sleeve 30 and the third sleeve 31 are divided into a plurality of bundles (preferably about two as shown in the figure), each of which is a flexible bending sleeve 33. It is bundled by. As will be described later, the position of the mounting shaft 4 changes with rotation, but the cable 27 is easily bent for each binding unit by the flexible bending sleeve 33 and is twisted by being divided into a plurality of bundles. The resistance is also reduced. The bending sleeve 33 has a lower hardness than the first sleeve 29, the second sleeve, and the third sleeve 31.

3. Operation Next, how the shape of the cable according to the present embodiment changes in accordance with the rotation of the rotation hinge portion will be described in detail with reference to FIGS. 9 to 11. The members having the same functions as those of the rotating hinge portion described in FIGS. 1 to 7 are denoted by the same reference numerals, and the description of the structure is omitted.

  FIG. 9 is a diagram illustrating a cable connection state when the rotation hinge portion is closed, FIG. 10 is a diagram illustrating a cable connection state when the rotation hinge portion is 90 ° open, and FIG. 11 is a rotation hinge portion. It is a figure which shows the connection condition of the cable in the vertically long state where a part opened 180 degrees.

  As shown in FIG. 9, the rotating hinge portion takes a plurality of position states as the hollow mounting shaft 4 is guided by the guide slit 11. In this embodiment, the operation side housing 6 and the display side housing 7 are in a state in which the rotation hinge portion is closed at 0 °, and the display side housing 7 lies 90 ° with respect to the operation side housing 6. In this state, the operation side housing 6 and the display side housing 7 are configured to take at least three position states of a vertically long state in which the operation side housing 6 and the display side housing 7 are rotated by 180 °. Further, as shown by an arrangement position 34 (see circle of an imaginary line) in FIG. Provided.

  With this configuration, the bending of the thin coaxial cable 27 can be concentrated in the region of the bending sleeve 33 in accordance with the change in position accompanying the rotation of the mounting shaft 4, and as described above, Since the length of the cable bundle bundled with the third sleeve 31 is longer at the outer side of the bend and shorter at the inner side, the load applied to the cable 27 at the time of bending can be reduced.

  For example, when the pivot angle of the pivot hinge portion shown in FIG. 9 is rotated from the 0 ° position to the 90 ° position shown in FIG. 10 and further to the 180 ° position shown in FIG. As the shaft 4 moves, the cable 27 also moves as shown in FIGS. In this embodiment, the cable 27 has the largest bend in the state shown in FIG. 11. In this state, the length of the cable bundle is set so as to reduce the load on the outer cable bundle and the inner cable bundle. Just keep it. Further, as described above, the flexible sleeve of the cable portion 28 is more flexible than the first and second sleeves 29 and 30 before and after the cable portion 28, so that the cable twist due to the rotation of the housing passes through the mounting shaft 4. 28, the load on the entire cable is reduced.

4). Effect As described above, the cable structure of the rotating hinge portion according to the present embodiment is composed of a plurality of bundles, and the cable bundle on the outer side of the bend is longer than the inner side. The load due to the bending of the cable can be reduced. In this way, by forming a plurality of bundles having a portion that can be easily bent in one cable shown in FIG. 8 and forming the lengths thereof differently depending on the bending direction, the rotating hinge portion is formed. Even if it rotates repeatedly, there exists an effect that generation | occurrence | production of inconveniences, such as a disconnection, can be suppressed.

  In the above-described embodiment, the description has been given by taking as an example the rotating hinge portion provided with the “character-shaped” guide slit 11, but even if the guide means other than “character-shaped” is provided, the first The same problem arises when the first connector on the housing side and the second connector on the second housing side are connected by a cable inserted through the mounting shaft 4. There is an effect.

  The present invention can be applied to a rotating hinge portion of a mobile communication terminal such as a mobile phone or a PDA.

It is a disassembled perspective view which shows the principal part of the rotation hinge part of the mobile telephone by one Embodiment of this invention. FIG. 2 is a front view of the cellular phone according to the present embodiment in a closed state. It is detail drawing of the rotation hinge part in the state of FIG. 1 is a front view of a mobile phone according to an embodiment in a horizontally long state. It is detail drawing of the rotation hinge part in the state of FIG. It is a front view which is the state which the mobile telephone by this embodiment opened vertically long. It is detail drawing of the rotation hinge part in the state of FIG. It is a schematic block diagram which shows the cable structure by one Example of this invention. It is a figure which shows the connection condition of the cable in a rotation hinge part closed state. It is a figure which shows the connection condition of the cable in the horizontally long state where the rotation hinge part opened 90 degrees. It is a figure which shows the connection condition of the cable in the vertically long state where the rotation hinge part opened 180 degrees.

Explanation of symbols

1 Base plate 2 Movable plate 4 Mounting shaft (hinge component)
6 Operation side case (first case)
7 Display side housing (second housing)
10a First shaft pin 10b Second shaft pin 11 Guide slit (guide means)
20a 1st hook-like part 20b 2nd hook-like part 25 1st connector 26 2nd connector 27 Cable 28 Cable part (flexible sleeve, 3rd binding means)
29 1st sleeve (1st binding means)
30 Second sleeve (third binding means)
31 Third sleeve (second bundling means)
32 Fixing (fixing means)
33 Bending sleeve (third bundling means)
50 Rotating hinge

Claims (11)

A cable structure having a plurality of cables for electrical connection between a first housing and a second housing that are rotatably coupled,
A first bundling means and a second bundling means for bundling the plurality of cables into one on each of the first housing side and the second housing side;
Third bundling means for bundling the plurality of cables between the first bundling means and the second bundling means into at least two cable bundles;
The cable structure is characterized in that, of the at least two cable bundles, the length of the cable bundle on the outer side of the cable bending by the rotation is set longer than the length of the inner cable bundle. The first bundling means and the second bundling means have a hardness that does not bend,
The third bundling means includes a fourth bundling means provided with a predetermined cable portion sandwiched between the first bundling means and having a hardness that does not bend each of the at least two cable bundles, and each cable bundle. 5. The cable structure according to claim 1, further comprising: a fifth bundling unit having flexibility for bundling. 3. The cable structure according to claim 2, wherein the predetermined cable portion moves with a hinge component that moves according to the rotation, and is configured more flexibly than the fifth bundling means. The cable structure according to claim 3, wherein each of the at least two cable bundles in the predetermined cable portion is bundled by a flexible sleeve. The cable structure according to any one of claims 1 to 4, wherein the second binding means is fixed to the second housing side. The first casing and the second casing are connected by a rotating hinge portion, and the rotating hinge portion corresponds to the plurality of predetermined positions, respectively, and the first casing and the second casing. 2. The at least three positions of the two housings are in a closed state at an angle of 0 °, a T-shaped state at an angle of 90 °, and a vertically long state at an angle of 180 °. 6. The cable structure according to any one of 5 above. A first housing and a second housing are connected by a rotating hinge portion, and the first housing and the second housing are closed at an angle of 0 °, and are T-shaped at an angle of 90 °. An electronic device that takes any one of a state and at least three position states of a vertically long state at an angle of 180 °,
A plurality of cables for performing an electrical connection between the first casing and the second casing through the rotating hinge portion are connected to the first casing side and the plurality of cables. A first bundling means and a second bundling means for bundling one each on the second casing side, and the plurality of cables between the first bundling means and the second bundling means into at least two cable bundles A third bundling means for bundling, wherein the second bundling means is fixed to the second housing side, and the length of the cable bundle outside the bent cable by the rotation of the at least two cable bundles. An electronic device characterized in that is set longer than the length of the inner cable bundle. The first bundling means and the second bundling means have a hardness that does not bend,
The third bundling means includes a fourth bundling means provided with a predetermined cable portion sandwiched between the first bundling means and having a hardness that does not bend each of the at least two cable bundles, and each cable bundle. The electronic apparatus according to claim 7, further comprising a fifth binding unit having flexibility to bend so as to be bent. 9. The electronic apparatus according to claim 8, wherein the predetermined cable portion moves with a hinge component that moves according to the rotation, and is configured more flexibly than the fifth bundling means. The electronic device according to claim 9, wherein each of the at least two cable bundles in the predetermined cable portion is bundled by a flexible sleeve. The portable communication apparatus which has a cable structure of any one of Claims 1-6.

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